From 7c0b2380da953d8f63618f530af18eff3518d259 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Wed, 13 Nov 2013 10:40:30 +0300 Subject: mfd: ab8500-debugfs: Move dereference after check for NULL We dereference "desc" before check if it is NULL. I've shifted it around so we check first before dereferencing. Signed-off-by: Dan Carpenter Signed-off-by: Lee Jones --- drivers/mfd/ab8500-debugfs.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/ab8500-debugfs.c b/drivers/mfd/ab8500-debugfs.c index e33e385af0a2..d1a22aae2df5 100644 --- a/drivers/mfd/ab8500-debugfs.c +++ b/drivers/mfd/ab8500-debugfs.c @@ -1600,7 +1600,6 @@ static int ab8500_interrupts_print(struct seq_file *s, void *p) for (line = 0; line < num_interrupt_lines; line++) { struct irq_desc *desc = irq_to_desc(line + irq_first); - struct irqaction *action = desc->action; seq_printf(s, "%3i: %6i %4i", line, num_interrupts[line], @@ -1608,7 +1607,9 @@ static int ab8500_interrupts_print(struct seq_file *s, void *p) if (desc && desc->name) seq_printf(s, "-%-8s", desc->name); - if (action) { + if (desc && desc->action) { + struct irqaction *action = desc->action; + seq_printf(s, " %s", action->name); while ((action = action->next) != NULL) seq_printf(s, ", %s", action->name); -- cgit v1.2.2 From c94d37c005cfb578e5e15de63f29610d7aae891e Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Fri, 15 Nov 2013 14:03:19 +0000 Subject: mfd: wm5110: Correct default for register LDO2 Control 1 Signed-off-by: Charles Keepax Signed-off-by: Lee Jones --- drivers/mfd/wm5110-tables.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mfd/wm5110-tables.c b/drivers/mfd/wm5110-tables.c index bf8b3b5ad1fe..d3d753179d65 100644 --- a/drivers/mfd/wm5110-tables.c +++ b/drivers/mfd/wm5110-tables.c @@ -504,7 +504,7 @@ static const struct reg_default wm5110_reg_default[] = { { 0x000001AA, 0x0004 }, /* R426 - FLL2 GPIO Clock */ { 0x00000200, 0x0006 }, /* R512 - Mic Charge Pump 1 */ { 0x00000210, 0x0184 }, /* R528 - LDO1 Control 1 */ - { 0x00000213, 0x0344 }, /* R531 - LDO2 Control 1 */ + { 0x00000213, 0x03E4 }, /* R531 - LDO2 Control 1 */ { 0x00000218, 0x01A6 }, /* R536 - Mic Bias Ctrl 1 */ { 0x00000219, 0x01A6 }, /* R537 - Mic Bias Ctrl 2 */ { 0x0000021A, 0x01A6 }, /* R538 - Mic Bias Ctrl 3 */ -- cgit v1.2.2 From dd6eb26fb6375f4cef5f6eb5eec4ed118e070616 Mon Sep 17 00:00:00 2001 From: Victor Kamensky Date: Sat, 16 Nov 2013 02:01:15 +0200 Subject: mfd: omap-usb-tll: Raw read and write endian fix All OMAP IP blocks expect LE data, but CPU may operate in BE mode. Need to use endian neutral functions to read/write h/w registers. I.e instead of __raw_read[lw] and __raw_write[lw] functions code need to use read[lw]_relaxed and write[lw]_relaxed functions. If the first simply reads/writes register, the second will byteswap it if host operates in BE mode. Changes are trivial sed like replacement of __raw_xxx functions with xxx_relaxed variant. Signed-off-by: Victor Kamensky Signed-off-by: Taras Kondratiuk Signed-off-by: Lee Jones --- drivers/mfd/omap-usb-tll.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/omap-usb-tll.c b/drivers/mfd/omap-usb-tll.c index 0d946ae14453..ee7468c1cb60 100644 --- a/drivers/mfd/omap-usb-tll.c +++ b/drivers/mfd/omap-usb-tll.c @@ -121,22 +121,22 @@ static DEFINE_SPINLOCK(tll_lock); /* serialize access to tll_dev */ static inline void usbtll_write(void __iomem *base, u32 reg, u32 val) { - __raw_writel(val, base + reg); + writel_relaxed(val, base + reg); } static inline u32 usbtll_read(void __iomem *base, u32 reg) { - return __raw_readl(base + reg); + return readl_relaxed(base + reg); } static inline void usbtll_writeb(void __iomem *base, u8 reg, u8 val) { - __raw_writeb(val, base + reg); + writeb_relaxed(val, base + reg); } static inline u8 usbtll_readb(void __iomem *base, u8 reg) { - return __raw_readb(base + reg); + return readb_relaxed(base + reg); } /*-------------------------------------------------------------------------*/ -- cgit v1.2.2 From 9981a3146cd9f07075dcac1611ca7c06f597d66b Mon Sep 17 00:00:00 2001 From: Victor Kamensky Date: Sat, 16 Nov 2013 02:01:14 +0200 Subject: mfd: omap-usb-host: Raw read and write endian fix All OMAP IP blocks expect LE data, but CPU may operate in BE mode. Need to use endian neutral functions to read/write h/w registers. I.e instead of __raw_read[lw] and __raw_write[lw] functions code need to use read[lw]_relaxed and write[lw]_relaxed functions. If the first simply reads/writes register, the second will byteswap it if host operates in BE mode. Changes are trivial sed like replacement of __raw_xxx functions with xxx_relaxed variant. Signed-off-by: Victor Kamensky Signed-off-by: Taras Kondratiuk Signed-off-by: Lee Jones --- drivers/mfd/omap-usb-host.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c index 142650fdc058..90b630ccc8bc 100644 --- a/drivers/mfd/omap-usb-host.c +++ b/drivers/mfd/omap-usb-host.c @@ -121,22 +121,22 @@ static u64 usbhs_dmamask = DMA_BIT_MASK(32); static inline void usbhs_write(void __iomem *base, u32 reg, u32 val) { - __raw_writel(val, base + reg); + writel_relaxed(val, base + reg); } static inline u32 usbhs_read(void __iomem *base, u32 reg) { - return __raw_readl(base + reg); + return readl_relaxed(base + reg); } static inline void usbhs_writeb(void __iomem *base, u8 reg, u8 val) { - __raw_writeb(val, base + reg); + writeb_relaxed(val, base + reg); } static inline u8 usbhs_readb(void __iomem *base, u8 reg) { - return __raw_readb(base + reg); + return readb_relaxed(base + reg); } /*-------------------------------------------------------------------------*/ -- cgit v1.2.2 From 49f91ac3310da217ba877b1872d2aba907022a22 Mon Sep 17 00:00:00 2001 From: Derek Basehore Date: Mon, 18 Nov 2013 11:30:48 +0100 Subject: mfd: cros ec: spi: Increase EC transaction delay 50 us is not a long enough delay between EC transactions. At least 70 us are needed for the 16 MHz STM32L part. Increase the delay to 200 us for an extra safety margin. Reviewed-by: Randall Spangler Signed-off-by: Derek Basehore Signed-off-by: Thierry Reding Signed-off-by: Lee Jones --- drivers/mfd/cros_ec_spi.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/cros_ec_spi.c b/drivers/mfd/cros_ec_spi.c index 367ccb58ecb1..ab49fe51a5d1 100644 --- a/drivers/mfd/cros_ec_spi.c +++ b/drivers/mfd/cros_ec_spi.c @@ -50,10 +50,11 @@ /* * Time between raising the SPI chip select (for the end of a * transaction) and dropping it again (for the next transaction). - * If we go too fast, the EC will miss the transaction. It seems - * that 50us is enough with the 16MHz STM32 EC. + * If we go too fast, the EC will miss the transaction. We know that we + * need at least 70 us with the 16 MHz STM32 EC, so go with 200 us to be + * safe. */ -#define EC_SPI_RECOVERY_TIME_NS (50 * 1000) +#define EC_SPI_RECOVERY_TIME_NS (200 * 1000) /** * struct cros_ec_spi - information about a SPI-connected EC -- cgit v1.2.2 From 9e146f43301caa69fca98c8036f11d940e0f29f9 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Mon, 18 Nov 2013 11:30:49 +0100 Subject: mfd: cros ec: spi: Fix debug output The dev_cont() symbol doesn't exist, so replace it with pr_cont(). While at it, also append a newline to the debug output to make it look nicer. Signed-off-by: Thierry Reding Signed-off-by: Lee Jones --- drivers/mfd/cros_ec_spi.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mfd/cros_ec_spi.c b/drivers/mfd/cros_ec_spi.c index ab49fe51a5d1..27be73523b9c 100644 --- a/drivers/mfd/cros_ec_spi.c +++ b/drivers/mfd/cros_ec_spi.c @@ -76,7 +76,9 @@ static void debug_packet(struct device *dev, const char *name, u8 *ptr, dev_dbg(dev, "%s: ", name); for (i = 0; i < len; i++) - dev_cont(dev, " %02x", ptr[i]); + pr_cont(" %02x", ptr[i]); + + pr_cont("\n"); #endif } -- cgit v1.2.2 From 6bbb3c4cb203a3c0596b845bd804d6a18dea7683 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Mon, 18 Nov 2013 14:33:01 +0100 Subject: mfd: stmicro: Constify struct mfd_cell where possible As of commit 03e361b25ee8dfb1fd9b890072c23c4aae01c6c7 ("mfd: Stop setting refcounting pointers in original mfd_cell arrays"), the "cell" parameter of mfd_add_devices() is "const" again. Hence make all cell data passed to mfd_add_devices() const where possible. Signed-off-by: Geert Uytterhoeven Signed-off-by: Lee Jones --- drivers/mfd/stmpe.c | 10 +++++----- drivers/mfd/stmpe.h | 2 +- 2 files changed, 6 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c index fff63a41862c..42ccd0544513 100644 --- a/drivers/mfd/stmpe.c +++ b/drivers/mfd/stmpe.c @@ -297,14 +297,14 @@ static struct resource stmpe_gpio_resources[] = { }, }; -static struct mfd_cell stmpe_gpio_cell = { +static const struct mfd_cell stmpe_gpio_cell = { .name = "stmpe-gpio", .of_compatible = "st,stmpe-gpio", .resources = stmpe_gpio_resources, .num_resources = ARRAY_SIZE(stmpe_gpio_resources), }; -static struct mfd_cell stmpe_gpio_cell_noirq = { +static const struct mfd_cell stmpe_gpio_cell_noirq = { .name = "stmpe-gpio", .of_compatible = "st,stmpe-gpio", /* gpio cell resources consist of an irq only so no resources here */ @@ -325,7 +325,7 @@ static struct resource stmpe_keypad_resources[] = { }, }; -static struct mfd_cell stmpe_keypad_cell = { +static const struct mfd_cell stmpe_keypad_cell = { .name = "stmpe-keypad", .of_compatible = "st,stmpe-keypad", .resources = stmpe_keypad_resources, @@ -409,7 +409,7 @@ static struct resource stmpe_ts_resources[] = { }, }; -static struct mfd_cell stmpe_ts_cell = { +static const struct mfd_cell stmpe_ts_cell = { .name = "stmpe-ts", .of_compatible = "st,stmpe-ts", .resources = stmpe_ts_resources, @@ -1064,7 +1064,7 @@ static int stmpe_chip_init(struct stmpe *stmpe) return stmpe_reg_write(stmpe, stmpe->regs[STMPE_IDX_ICR_LSB], icr); } -static int stmpe_add_device(struct stmpe *stmpe, struct mfd_cell *cell) +static int stmpe_add_device(struct stmpe *stmpe, const struct mfd_cell *cell) { return mfd_add_devices(stmpe->dev, stmpe->pdata->id, cell, 1, NULL, stmpe->irq_base, stmpe->domain); diff --git a/drivers/mfd/stmpe.h b/drivers/mfd/stmpe.h index ff2b09ba8797..6639f1b0fef5 100644 --- a/drivers/mfd/stmpe.h +++ b/drivers/mfd/stmpe.h @@ -38,7 +38,7 @@ static inline void stmpe_dump_bytes(const char *str, const void *buf, * enable and altfunc callbacks */ struct stmpe_variant_block { - struct mfd_cell *cell; + const struct mfd_cell *cell; int irq; enum stmpe_block block; }; -- cgit v1.2.2 From c8f675ff378b95eb6bf38de316e1b82339c44042 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Mon, 18 Nov 2013 14:32:57 +0100 Subject: mfd: dialog: Constify struct mfd_cell where possible As of commit 03e361b25ee8dfb1fd9b890072c23c4aae01c6c7 ("mfd: Stop setting refcounting pointers in original mfd_cell arrays"), the "cell" parameter of mfd_add_devices() is "const" again. Hence make all cell data passed to mfd_add_devices() const where possible. Signed-off-by: Geert Uytterhoeven Signed-off-by: Lee Jones --- drivers/mfd/da9052-core.c | 2 +- drivers/mfd/da9055-core.c | 2 +- drivers/mfd/da9063-core.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/da9052-core.c b/drivers/mfd/da9052-core.c index ea28a33576e4..25838f10b35b 100644 --- a/drivers/mfd/da9052-core.c +++ b/drivers/mfd/da9052-core.c @@ -427,7 +427,7 @@ int da9052_adc_read_temp(struct da9052 *da9052) } EXPORT_SYMBOL_GPL(da9052_adc_read_temp); -static struct mfd_cell da9052_subdev_info[] = { +static const struct mfd_cell da9052_subdev_info[] = { { .name = "da9052-regulator", .id = 1, diff --git a/drivers/mfd/da9055-core.c b/drivers/mfd/da9055-core.c index d3670cd3c3c6..caf8dcffd0ad 100644 --- a/drivers/mfd/da9055-core.c +++ b/drivers/mfd/da9055-core.c @@ -294,7 +294,7 @@ static struct resource da9055_ld05_6_resource = { .flags = IORESOURCE_IRQ, }; -static struct mfd_cell da9055_devs[] = { +static const struct mfd_cell da9055_devs[] = { { .of_compatible = "dialog,da9055-gpio", .name = "da9055-gpio", diff --git a/drivers/mfd/da9063-core.c b/drivers/mfd/da9063-core.c index c9cf8d988406..26937cd01071 100644 --- a/drivers/mfd/da9063-core.c +++ b/drivers/mfd/da9063-core.c @@ -75,7 +75,7 @@ static struct resource da9063_hwmon_resources[] = { }; -static struct mfd_cell da9063_devs[] = { +static const struct mfd_cell da9063_devs[] = { { .name = DA9063_DRVNAME_REGULATORS, .num_resources = ARRAY_SIZE(da9063_regulators_resources), -- cgit v1.2.2 From ad59de489bf4c81b90b25fb9017f0e6d141f5415 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Mon, 18 Nov 2013 14:33:04 +0100 Subject: mfd: wolfson: Constify struct mfd_cell where possible As of commit 03e361b25ee8dfb1fd9b890072c23c4aae01c6c7 ("mfd: Stop setting refcounting pointers in original mfd_cell arrays"), the "cell" parameter of mfd_add_devices() is "const" again. Hence make all cell data passed to mfd_add_devices() const where possible. Signed-off-by: Geert Uytterhoeven Signed-off-by: Lee Jones --- drivers/mfd/wm831x-core.c | 14 +++++++------- drivers/mfd/wm8994-core.c | 4 ++-- 2 files changed, 9 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/wm831x-core.c b/drivers/mfd/wm831x-core.c index 5c459f469224..28366a90e1ad 100644 --- a/drivers/mfd/wm831x-core.c +++ b/drivers/mfd/wm831x-core.c @@ -1011,7 +1011,7 @@ static struct resource wm831x_wdt_resources[] = { }, }; -static struct mfd_cell wm8310_devs[] = { +static const struct mfd_cell wm8310_devs[] = { { .name = "wm831x-backup", }, @@ -1165,7 +1165,7 @@ static struct mfd_cell wm8310_devs[] = { }, }; -static struct mfd_cell wm8311_devs[] = { +static const struct mfd_cell wm8311_devs[] = { { .name = "wm831x-backup", }, @@ -1295,7 +1295,7 @@ static struct mfd_cell wm8311_devs[] = { }, }; -static struct mfd_cell wm8312_devs[] = { +static const struct mfd_cell wm8312_devs[] = { { .name = "wm831x-backup", }, @@ -1449,7 +1449,7 @@ static struct mfd_cell wm8312_devs[] = { }, }; -static struct mfd_cell wm8320_devs[] = { +static const struct mfd_cell wm8320_devs[] = { { .name = "wm831x-backup", }, @@ -1578,7 +1578,7 @@ static struct mfd_cell wm8320_devs[] = { }, }; -static struct mfd_cell touch_devs[] = { +static const struct mfd_cell touch_devs[] = { { .name = "wm831x-touch", .num_resources = ARRAY_SIZE(wm831x_touch_resources), @@ -1586,7 +1586,7 @@ static struct mfd_cell touch_devs[] = { }, }; -static struct mfd_cell rtc_devs[] = { +static const struct mfd_cell rtc_devs[] = { { .name = "wm831x-rtc", .num_resources = ARRAY_SIZE(wm831x_rtc_resources), @@ -1594,7 +1594,7 @@ static struct mfd_cell rtc_devs[] = { }, }; -static struct mfd_cell backlight_devs[] = { +static const struct mfd_cell backlight_devs[] = { { .name = "wm831x-backlight", }, diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c index 030827511667..ba04f1bc70eb 100644 --- a/drivers/mfd/wm8994-core.c +++ b/drivers/mfd/wm8994-core.c @@ -33,7 +33,7 @@ #include "wm8994.h" -static struct mfd_cell wm8994_regulator_devs[] = { +static const struct mfd_cell wm8994_regulator_devs[] = { { .name = "wm8994-ldo", .id = 1, @@ -62,7 +62,7 @@ static struct resource wm8994_gpio_resources[] = { }, }; -static struct mfd_cell wm8994_devs[] = { +static const struct mfd_cell wm8994_devs[] = { { .name = "wm8994-codec", .num_resources = ARRAY_SIZE(wm8994_codec_resources), -- cgit v1.2.2 From afb580a944ce9fe8c31f96623ded7bb4b87412d3 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Mon, 18 Nov 2013 14:33:03 +0100 Subject: mfd: toshiba: Constify struct mfd_cell where possible As of commit 03e361b25ee8dfb1fd9b890072c23c4aae01c6c7 ("mfd: Stop setting refcounting pointers in original mfd_cell arrays"), the "cell" parameter of mfd_add_devices() is "const" again. Hence make all cell data passed to mfd_add_devices() const where possible. Signed-off-by: Geert Uytterhoeven Signed-off-by: Lee Jones --- drivers/mfd/tc3589x.c | 4 ++-- drivers/mfd/tc6387xb.c | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/tc3589x.c b/drivers/mfd/tc3589x.c index 87ea51dc6234..2cf636c267d9 100644 --- a/drivers/mfd/tc3589x.c +++ b/drivers/mfd/tc3589x.c @@ -155,7 +155,7 @@ static struct resource keypad_resources[] = { }, }; -static struct mfd_cell tc3589x_dev_gpio[] = { +static const struct mfd_cell tc3589x_dev_gpio[] = { { .name = "tc3589x-gpio", .num_resources = ARRAY_SIZE(gpio_resources), @@ -164,7 +164,7 @@ static struct mfd_cell tc3589x_dev_gpio[] = { }, }; -static struct mfd_cell tc3589x_dev_keypad[] = { +static const struct mfd_cell tc3589x_dev_keypad[] = { { .name = "tc3589x-keypad", .num_resources = ARRAY_SIZE(keypad_resources), diff --git a/drivers/mfd/tc6387xb.c b/drivers/mfd/tc6387xb.c index acd0f3a41044..591a331d8d83 100644 --- a/drivers/mfd/tc6387xb.c +++ b/drivers/mfd/tc6387xb.c @@ -126,7 +126,7 @@ static struct tmio_mmc_data tc6387xb_mmc_data = { /*--------------------------------------------------------------------------*/ -static struct mfd_cell tc6387xb_cells[] = { +static const struct mfd_cell tc6387xb_cells[] = { [TC6387XB_CELL_MMC] = { .name = "tmio-mmc", .enable = tc6387xb_mmc_enable, -- cgit v1.2.2 From 04e02417306efea1d2702f8f67b4d4ae66c298b4 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Mon, 18 Nov 2013 14:32:59 +0100 Subject: mfd: marvell: Constify struct mfd_cell where possible As of commit 03e361b25ee8dfb1fd9b890072c23c4aae01c6c7 ("mfd: Stop setting refcounting pointers in original mfd_cell arrays"), the "cell" parameter of mfd_add_devices() is "const" again. Hence make all cell data passed to mfd_add_devices() const where possible. Signed-off-by: Geert Uytterhoeven Signed-off-by: Lee Jones --- drivers/mfd/88pm800.c | 4 ++-- drivers/mfd/88pm805.c | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/88pm800.c b/drivers/mfd/88pm800.c index a65447d65605..7dca1e640970 100644 --- a/drivers/mfd/88pm800.c +++ b/drivers/mfd/88pm800.c @@ -148,7 +148,7 @@ static struct resource onkey_resources[] = { }, }; -static struct mfd_cell onkey_devs[] = { +static const struct mfd_cell onkey_devs[] = { { .name = "88pm80x-onkey", .num_resources = 1, @@ -157,7 +157,7 @@ static struct mfd_cell onkey_devs[] = { }, }; -static struct mfd_cell regulator_devs[] = { +static const struct mfd_cell regulator_devs[] = { { .name = "88pm80x-regulator", .id = -1, diff --git a/drivers/mfd/88pm805.c b/drivers/mfd/88pm805.c index 8a5b6ffb5afb..64751c2a1ace 100644 --- a/drivers/mfd/88pm805.c +++ b/drivers/mfd/88pm805.c @@ -77,7 +77,7 @@ static struct resource codec_resources[] = { }, }; -static struct mfd_cell codec_devs[] = { +static const struct mfd_cell codec_devs[] = { { .name = "88pm80x-codec", .num_resources = ARRAY_SIZE(codec_resources), -- cgit v1.2.2 From 7c0517b1716bc1aa873064290401a8ce2fbabc32 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Mon, 18 Nov 2013 14:33:00 +0100 Subject: mfd: maxim: Constify struct mfd_cell where possible As of commit 03e361b25ee8dfb1fd9b890072c23c4aae01c6c7 ("mfd: Stop setting refcounting pointers in original mfd_cell arrays"), the "cell" parameter of mfd_add_devices() is "const" again. Hence make all cell data passed to mfd_add_devices() const where possible. Signed-off-by: Geert Uytterhoeven Signed-off-by: Lee Jones --- drivers/mfd/max77686.c | 2 +- drivers/mfd/max77693.c | 2 +- drivers/mfd/max8907.c | 2 +- drivers/mfd/max8925-core.c | 8 ++++---- drivers/mfd/max8997.c | 2 +- drivers/mfd/max8998.c | 4 ++-- 6 files changed, 10 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/max77686.c b/drivers/mfd/max77686.c index 34520cbe8afb..fb0848544b76 100644 --- a/drivers/mfd/max77686.c +++ b/drivers/mfd/max77686.c @@ -35,7 +35,7 @@ #define I2C_ADDR_RTC (0x0C >> 1) -static struct mfd_cell max77686_devs[] = { +static const struct mfd_cell max77686_devs[] = { { .name = "max77686-pmic", }, { .name = "max77686-rtc", }, { .name = "max77686-clk", }, diff --git a/drivers/mfd/max77693.c b/drivers/mfd/max77693.c index 9f92463f4f7e..a0093a839d4b 100644 --- a/drivers/mfd/max77693.c +++ b/drivers/mfd/max77693.c @@ -41,7 +41,7 @@ #define I2C_ADDR_MUIC (0x4A >> 1) #define I2C_ADDR_HAPTIC (0x90 >> 1) -static struct mfd_cell max77693_devs[] = { +static const struct mfd_cell max77693_devs[] = { { .name = "max77693-pmic", }, { .name = "max77693-charger", }, { .name = "max77693-flash", }, diff --git a/drivers/mfd/max8907.c b/drivers/mfd/max8907.c index 3bbfedc07f41..07740314b29d 100644 --- a/drivers/mfd/max8907.c +++ b/drivers/mfd/max8907.c @@ -22,7 +22,7 @@ #include #include -static struct mfd_cell max8907_cells[] = { +static const struct mfd_cell max8907_cells[] = { { .name = "max8907-regulator", }, { .name = "max8907-rtc", }, }; diff --git a/drivers/mfd/max8925-core.c b/drivers/mfd/max8925-core.c index f0cc40296d8c..f3faf0c45ddd 100644 --- a/drivers/mfd/max8925-core.c +++ b/drivers/mfd/max8925-core.c @@ -45,7 +45,7 @@ static struct resource touch_resources[] = { }, }; -static struct mfd_cell touch_devs[] = { +static const struct mfd_cell touch_devs[] = { { .name = "max8925-touch", .num_resources = 1, @@ -63,7 +63,7 @@ static struct resource power_supply_resources[] = { }, }; -static struct mfd_cell power_devs[] = { +static const struct mfd_cell power_devs[] = { { .name = "max8925-power", .num_resources = 1, @@ -81,7 +81,7 @@ static struct resource rtc_resources[] = { }, }; -static struct mfd_cell rtc_devs[] = { +static const struct mfd_cell rtc_devs[] = { { .name = "max8925-rtc", .num_resources = 1, @@ -104,7 +104,7 @@ static struct resource onkey_resources[] = { }, }; -static struct mfd_cell onkey_devs[] = { +static const struct mfd_cell onkey_devs[] = { { .name = "max8925-onkey", .num_resources = 2, diff --git a/drivers/mfd/max8997.c b/drivers/mfd/max8997.c index 791aea3e96ce..1b80e51c2e73 100644 --- a/drivers/mfd/max8997.c +++ b/drivers/mfd/max8997.c @@ -40,7 +40,7 @@ #define I2C_ADDR_RTC (0x0C >> 1) #define I2C_ADDR_HAPTIC (0x90 >> 1) -static struct mfd_cell max8997_devs[] = { +static const struct mfd_cell max8997_devs[] = { { .name = "max8997-pmic", }, { .name = "max8997-rtc", }, { .name = "max8997-battery", }, diff --git a/drivers/mfd/max8998.c b/drivers/mfd/max8998.c index fe6332dcabee..f47eaa70eae0 100644 --- a/drivers/mfd/max8998.c +++ b/drivers/mfd/max8998.c @@ -37,7 +37,7 @@ #define RTC_I2C_ADDR (0x0c >> 1) -static struct mfd_cell max8998_devs[] = { +static const struct mfd_cell max8998_devs[] = { { .name = "max8998-pmic", }, { @@ -47,7 +47,7 @@ static struct mfd_cell max8998_devs[] = { }, }; -static struct mfd_cell lp3974_devs[] = { +static const struct mfd_cell lp3974_devs[] = { { .name = "lp3974-pmic", }, { -- cgit v1.2.2 From cf3c7cf6f0eefa4c359dfbf9cc6e43bac34d1389 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Mon, 18 Nov 2013 14:32:58 +0100 Subject: mfd: intel: Constify struct mfd_cell where possible As of commit 03e361b25ee8dfb1fd9b890072c23c4aae01c6c7 ("mfd: Stop setting refcounting pointers in original mfd_cell arrays"), the "cell" parameter of mfd_add_devices() is "const" again. Hence make all cell data passed to mfd_add_devices() const where possible. Signed-off-by: Geert Uytterhoeven Signed-off-by: Lee Jones --- drivers/mfd/intel_msic.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mfd/intel_msic.c b/drivers/mfd/intel_msic.c index 9203d47cdbb1..049fd23af54a 100644 --- a/drivers/mfd/intel_msic.c +++ b/drivers/mfd/intel_msic.c @@ -178,7 +178,7 @@ static struct mfd_cell msic_devs[] = { * These devices appear only after the MSIC driver itself is initialized so * we can guarantee that the SCU IPC interface is ready. */ -static struct mfd_cell msic_other_devs[] = { +static const struct mfd_cell msic_other_devs[] = { /* Audio codec in the MSIC */ { .id = -1, -- cgit v1.2.2 From 2977dc92e437f888974b2e9fe37c95dd29e2b62a Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Mon, 18 Nov 2013 14:33:05 +0100 Subject: mfd: staging: Constify struct mfd_cell where possible As of commit 03e361b25ee8dfb1fd9b890072c23c4aae01c6c7 ("mfd: Stop setting refcounting pointers in original mfd_cell arrays"), the "cell" parameter of mfd_add_devices() is "const" again. Hence make all cell data passed to mfd_add_devices() const where possible. Cc: Greg Kroah-Hartman Cc: devel@driverdev.osuosl.org Signed-off-by: Geert Uytterhoeven Signed-off-by: Lee Jones --- drivers/staging/nvec/nvec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/staging/nvec/nvec.c b/drivers/staging/nvec/nvec.c index 49ea76b3435d..bb152201e93d 100644 --- a/drivers/staging/nvec/nvec.c +++ b/drivers/staging/nvec/nvec.c @@ -83,7 +83,7 @@ enum nvec_sleep_subcmds { static struct nvec_chip *nvec_power_handle; -static struct mfd_cell nvec_devices[] = { +static const struct mfd_cell nvec_devices[] = { { .name = "nvec-kbd", .id = 1, -- cgit v1.2.2 From 5ac98553afe41ffb5513fa8aac6df699a70231a3 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Mon, 18 Nov 2013 14:33:06 +0100 Subject: mfd: Constify struct mfd_cell where possible As of commit 03e361b25ee8dfb1fd9b890072c23c4aae01c6c7 ("mfd: Stop setting refcounting pointers in original mfd_cell arrays"), the "cell" parameter of mfd_add_devices() is "const" again. Hence make all cell data passed to mfd_add_devices() const where possible. Signed-off-by: Geert Uytterhoeven Signed-off-by: Lee Jones --- drivers/mfd/ab8500-core.c | 14 +++++++------- drivers/mfd/arizona-core.c | 8 ++++---- drivers/mfd/as3722.c | 2 +- drivers/mfd/asic3.c | 4 ++-- drivers/mfd/cros_ec.c | 2 +- drivers/mfd/db8500-prcmu.c | 4 ++-- drivers/mfd/htc-pasic3.c | 2 +- drivers/mfd/jz4740-adc.c | 2 +- drivers/mfd/lp8788.c | 2 +- drivers/mfd/rc5t583.c | 2 +- drivers/mfd/rdc321x-southbridge.c | 2 +- drivers/mfd/retu-mfd.c | 6 +++--- drivers/mfd/sec-core.c | 8 ++++---- drivers/mfd/timberdale.c | 12 ++++++------ drivers/mfd/viperboard.c | 2 +- drivers/mfd/vx855.c | 2 +- 16 files changed, 37 insertions(+), 37 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c index b6c2cdc76091..6788064ed899 100644 --- a/drivers/mfd/ab8500-core.c +++ b/drivers/mfd/ab8500-core.c @@ -1017,7 +1017,7 @@ static struct resource ab8500_temp_resources[] = { }, }; -static struct mfd_cell ab8500_bm_devs[] = { +static const struct mfd_cell ab8500_bm_devs[] = { { .name = "ab8500-charger", .of_compatible = "stericsson,ab8500-charger", @@ -1052,7 +1052,7 @@ static struct mfd_cell ab8500_bm_devs[] = { }, }; -static struct mfd_cell ab8500_devs[] = { +static const struct mfd_cell ab8500_devs[] = { #ifdef CONFIG_DEBUG_FS { .name = "ab8500-debug", @@ -1143,7 +1143,7 @@ static struct mfd_cell ab8500_devs[] = { }, }; -static struct mfd_cell ab9540_devs[] = { +static const struct mfd_cell ab9540_devs[] = { #ifdef CONFIG_DEBUG_FS { .name = "ab8500-debug", @@ -1214,7 +1214,7 @@ static struct mfd_cell ab9540_devs[] = { }; /* Device list for ab8505 */ -static struct mfd_cell ab8505_devs[] = { +static const struct mfd_cell ab8505_devs[] = { #ifdef CONFIG_DEBUG_FS { .name = "ab8500-debug", @@ -1275,7 +1275,7 @@ static struct mfd_cell ab8505_devs[] = { }, }; -static struct mfd_cell ab8540_devs[] = { +static const struct mfd_cell ab8540_devs[] = { #ifdef CONFIG_DEBUG_FS { .name = "ab8500-debug", @@ -1339,7 +1339,7 @@ static struct mfd_cell ab8540_devs[] = { }, }; -static struct mfd_cell ab8540_cut1_devs[] = { +static const struct mfd_cell ab8540_cut1_devs[] = { { .name = "ab8500-rtc", .of_compatible = "stericsson,ab8500-rtc", @@ -1348,7 +1348,7 @@ static struct mfd_cell ab8540_cut1_devs[] = { }, }; -static struct mfd_cell ab8540_cut2_devs[] = { +static const struct mfd_cell ab8540_cut2_devs[] = { { .name = "ab8540-rtc", .of_compatible = "stericsson,ab8540-rtc", diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c index 75e180ceecf3..a45aab9f6bb1 100644 --- a/drivers/mfd/arizona-core.c +++ b/drivers/mfd/arizona-core.c @@ -565,7 +565,7 @@ static inline int arizona_of_get_core_pdata(struct arizona *arizona) } #endif -static struct mfd_cell early_devs[] = { +static const struct mfd_cell early_devs[] = { { .name = "arizona-ldo1" }, }; @@ -577,7 +577,7 @@ static const char *wm5102_supplies[] = { "SPKVDDR", }; -static struct mfd_cell wm5102_devs[] = { +static const struct mfd_cell wm5102_devs[] = { { .name = "arizona-micsupp" }, { .name = "arizona-extcon" }, { .name = "arizona-gpio" }, @@ -590,7 +590,7 @@ static struct mfd_cell wm5102_devs[] = { }, }; -static struct mfd_cell wm5110_devs[] = { +static const struct mfd_cell wm5110_devs[] = { { .name = "arizona-micsupp" }, { .name = "arizona-extcon" }, { .name = "arizona-gpio" }, @@ -609,7 +609,7 @@ static const char *wm8997_supplies[] = { "SPKVDD", }; -static struct mfd_cell wm8997_devs[] = { +static const struct mfd_cell wm8997_devs[] = { { .name = "arizona-micsupp" }, { .name = "arizona-extcon" }, { .name = "arizona-gpio" }, diff --git a/drivers/mfd/as3722.c b/drivers/mfd/as3722.c index f161f2e00df7..2d9b728a19f8 100644 --- a/drivers/mfd/as3722.c +++ b/drivers/mfd/as3722.c @@ -54,7 +54,7 @@ static const struct resource as3722_adc_resource[] = { }, }; -static struct mfd_cell as3722_devs[] = { +static const struct mfd_cell as3722_devs[] = { { .name = "as3722-pinctrl", }, diff --git a/drivers/mfd/asic3.c b/drivers/mfd/asic3.c index fa22154c84e4..9f6294f2a070 100644 --- a/drivers/mfd/asic3.c +++ b/drivers/mfd/asic3.c @@ -695,7 +695,7 @@ static int ds1wm_disable(struct platform_device *pdev) return 0; } -static struct mfd_cell asic3_cell_ds1wm = { +static const struct mfd_cell asic3_cell_ds1wm = { .name = "ds1wm", .enable = ds1wm_enable, .disable = ds1wm_disable, @@ -797,7 +797,7 @@ static int asic3_mmc_disable(struct platform_device *pdev) return 0; } -static struct mfd_cell asic3_cell_mmc = { +static const struct mfd_cell asic3_cell_mmc = { .name = "tmio-mmc", .enable = asic3_mmc_enable, .disable = asic3_mmc_disable, diff --git a/drivers/mfd/cros_ec.c b/drivers/mfd/cros_ec.c index 1f36885d674b..783fe2e73e1e 100644 --- a/drivers/mfd/cros_ec.c +++ b/drivers/mfd/cros_ec.c @@ -84,7 +84,7 @@ static irqreturn_t ec_irq_thread(int irq, void *data) return IRQ_HANDLED; } -static struct mfd_cell cros_devs[] = { +static const struct mfd_cell cros_devs[] = { { .name = "cros-ec-keyb", .id = 1, diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c index b9ce60c301de..e43e6e821117 100644 --- a/drivers/mfd/db8500-prcmu.c +++ b/drivers/mfd/db8500-prcmu.c @@ -3070,7 +3070,7 @@ static struct db8500_thsens_platform_data db8500_thsens_data = { .num_trips = 4, }; -static struct mfd_cell common_prcmu_devs[] = { +static const struct mfd_cell common_prcmu_devs[] = { { .name = "ux500_wdt", .platform_data = &db8500_wdt_pdata, @@ -3079,7 +3079,7 @@ static struct mfd_cell common_prcmu_devs[] = { }, }; -static struct mfd_cell db8500_prcmu_devs[] = { +static const struct mfd_cell db8500_prcmu_devs[] = { { .name = "db8500-prcmu-regulators", .of_compatible = "stericsson,db8500-prcmu-regulator", diff --git a/drivers/mfd/htc-pasic3.c b/drivers/mfd/htc-pasic3.c index 6bf92a507b95..e88d4f6fef4c 100644 --- a/drivers/mfd/htc-pasic3.c +++ b/drivers/mfd/htc-pasic3.c @@ -114,7 +114,7 @@ static struct resource ds1wm_resources[] __initdata = { }, }; -static struct mfd_cell ds1wm_cell __initdata = { +static const struct mfd_cell ds1wm_cell __initconst = { .name = "ds1wm", .enable = ds1wm_enable, .disable = ds1wm_disable, diff --git a/drivers/mfd/jz4740-adc.c b/drivers/mfd/jz4740-adc.c index 3c0e8cf6916b..7a51c0d0d4f1 100644 --- a/drivers/mfd/jz4740-adc.c +++ b/drivers/mfd/jz4740-adc.c @@ -181,7 +181,7 @@ static struct resource jz4740_battery_resources[] = { }, }; -static struct mfd_cell jz4740_adc_cells[] = { +static const struct mfd_cell jz4740_adc_cells[] = { { .id = 0, .name = "jz4740-hwmon", diff --git a/drivers/mfd/lp8788.c b/drivers/mfd/lp8788.c index 0f1221911018..a30bc15fe5ba 100644 --- a/drivers/mfd/lp8788.c +++ b/drivers/mfd/lp8788.c @@ -71,7 +71,7 @@ static struct resource rtc_irqs[] = { }, }; -static struct mfd_cell lp8788_devs[] = { +static const struct mfd_cell lp8788_devs[] = { /* 4 bucks */ MFD_DEV_WITH_ID(BUCK, 1), MFD_DEV_WITH_ID(BUCK, 2), diff --git a/drivers/mfd/rc5t583.c b/drivers/mfd/rc5t583.c index 346330176afc..df276ad9f40b 100644 --- a/drivers/mfd/rc5t583.c +++ b/drivers/mfd/rc5t583.c @@ -74,7 +74,7 @@ static struct deepsleep_control_data deepsleep_data[] = { #define EXT_PWR_REQ \ (RC5T583_EXT_PWRREQ1_CONTROL | RC5T583_EXT_PWRREQ2_CONTROL) -static struct mfd_cell rc5t583_subdevs[] = { +static const struct mfd_cell rc5t583_subdevs[] = { {.name = "rc5t583-gpio",}, {.name = "rc5t583-regulator",}, {.name = "rc5t583-rtc", }, diff --git a/drivers/mfd/rdc321x-southbridge.c b/drivers/mfd/rdc321x-southbridge.c index 21b7bef73507..aab63ee043e3 100644 --- a/drivers/mfd/rdc321x-southbridge.c +++ b/drivers/mfd/rdc321x-southbridge.c @@ -56,7 +56,7 @@ static struct resource rdc321x_gpio_resources[] = { } }; -static struct mfd_cell rdc321x_sb_cells[] = { +static const struct mfd_cell rdc321x_sb_cells[] = { { .name = "rdc321x-wdt", .resources = rdc321x_wdt_resource, diff --git a/drivers/mfd/retu-mfd.c b/drivers/mfd/retu-mfd.c index a1830986eeb7..c8f345f7e9a2 100644 --- a/drivers/mfd/retu-mfd.c +++ b/drivers/mfd/retu-mfd.c @@ -55,7 +55,7 @@ static struct resource retu_pwrbutton_res[] = { }, }; -static struct mfd_cell retu_devs[] = { +static const struct mfd_cell retu_devs[] = { { .name = "retu-wdt" }, @@ -94,7 +94,7 @@ static struct resource tahvo_usb_res[] = { }, }; -static struct mfd_cell tahvo_devs[] = { +static const struct mfd_cell tahvo_devs[] = { { .name = "tahvo-usb", .resources = tahvo_usb_res, @@ -122,7 +122,7 @@ static const struct retu_data { char *chip_name; char *companion_name; struct regmap_irq_chip *irq_chip; - struct mfd_cell *children; + const struct mfd_cell *children; int nchildren; } retu_data[] = { [0] = { diff --git a/drivers/mfd/sec-core.c b/drivers/mfd/sec-core.c index 54cc25546592..b31824c33e15 100644 --- a/drivers/mfd/sec-core.c +++ b/drivers/mfd/sec-core.c @@ -31,7 +31,7 @@ #include #include -static struct mfd_cell s5m8751_devs[] = { +static const struct mfd_cell s5m8751_devs[] = { { .name = "s5m8751-pmic", }, { @@ -41,7 +41,7 @@ static struct mfd_cell s5m8751_devs[] = { }, }; -static struct mfd_cell s5m8763_devs[] = { +static const struct mfd_cell s5m8763_devs[] = { { .name = "s5m8763-pmic", }, { @@ -51,7 +51,7 @@ static struct mfd_cell s5m8763_devs[] = { }, }; -static struct mfd_cell s5m8767_devs[] = { +static const struct mfd_cell s5m8767_devs[] = { { .name = "s5m8767-pmic", }, { @@ -59,7 +59,7 @@ static struct mfd_cell s5m8767_devs[] = { }, }; -static struct mfd_cell s2mps11_devs[] = { +static const struct mfd_cell s2mps11_devs[] = { { .name = "s2mps11-pmic", }, { diff --git a/drivers/mfd/timberdale.c b/drivers/mfd/timberdale.c index dbb34f94e5e3..c6668ac70af3 100644 --- a/drivers/mfd/timberdale.c +++ b/drivers/mfd/timberdale.c @@ -374,7 +374,7 @@ static const struct resource timberdale_dma_resources[] = { }, }; -static struct mfd_cell timberdale_cells_bar0_cfg0[] = { +static const struct mfd_cell timberdale_cells_bar0_cfg0[] = { { .name = "timb-dma", .num_resources = ARRAY_SIZE(timberdale_dma_resources), @@ -431,7 +431,7 @@ static struct mfd_cell timberdale_cells_bar0_cfg0[] = { }, }; -static struct mfd_cell timberdale_cells_bar0_cfg1[] = { +static const struct mfd_cell timberdale_cells_bar0_cfg1[] = { { .name = "timb-dma", .num_resources = ARRAY_SIZE(timberdale_dma_resources), @@ -498,7 +498,7 @@ static struct mfd_cell timberdale_cells_bar0_cfg1[] = { }, }; -static struct mfd_cell timberdale_cells_bar0_cfg2[] = { +static const struct mfd_cell timberdale_cells_bar0_cfg2[] = { { .name = "timb-dma", .num_resources = ARRAY_SIZE(timberdale_dma_resources), @@ -548,7 +548,7 @@ static struct mfd_cell timberdale_cells_bar0_cfg2[] = { }, }; -static struct mfd_cell timberdale_cells_bar0_cfg3[] = { +static const struct mfd_cell timberdale_cells_bar0_cfg3[] = { { .name = "timb-dma", .num_resources = ARRAY_SIZE(timberdale_dma_resources), @@ -619,7 +619,7 @@ static const struct resource timberdale_sdhc_resources[] = { }, }; -static struct mfd_cell timberdale_cells_bar1[] = { +static const struct mfd_cell timberdale_cells_bar1[] = { { .name = "sdhci", .num_resources = ARRAY_SIZE(timberdale_sdhc_resources), @@ -627,7 +627,7 @@ static struct mfd_cell timberdale_cells_bar1[] = { }, }; -static struct mfd_cell timberdale_cells_bar2[] = { +static const struct mfd_cell timberdale_cells_bar2[] = { { .name = "sdhci", .num_resources = ARRAY_SIZE(timberdale_sdhc_resources), diff --git a/drivers/mfd/viperboard.c b/drivers/mfd/viperboard.c index af2a6703f34f..e00f5340ed87 100644 --- a/drivers/mfd/viperboard.c +++ b/drivers/mfd/viperboard.c @@ -37,7 +37,7 @@ static const struct usb_device_id vprbrd_table[] = { MODULE_DEVICE_TABLE(usb, vprbrd_table); -static struct mfd_cell vprbrd_devs[] = { +static const struct mfd_cell vprbrd_devs[] = { { .name = "viperboard-gpio", }, diff --git a/drivers/mfd/vx855.c b/drivers/mfd/vx855.c index 757ecc63338c..5cd5661158bc 100644 --- a/drivers/mfd/vx855.c +++ b/drivers/mfd/vx855.c @@ -60,7 +60,7 @@ static struct resource vx855_gpio_resources[] = { }, }; -static struct mfd_cell vx855_cells[] = { +static const struct mfd_cell vx855_cells[] = { { .name = "vx855_gpio", .num_resources = ARRAY_SIZE(vx855_gpio_resources), -- cgit v1.2.2 From 30fe2b5bd5cd732a329ef31062d9d96eee7d18e4 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Mon, 18 Nov 2013 14:33:02 +0100 Subject: mfd: ti: Constify struct mfd_cell where possible As of commit 03e361b25ee8dfb1fd9b890072c23c4aae01c6c7 ("mfd: Stop setting refcounting pointers in original mfd_cell arrays"), the "cell" parameter of mfd_add_devices() is "const" again. Hence make all cell data passed to mfd_add_devices() const where possible. Signed-off-by: Geert Uytterhoeven Signed-off-by: Lee Jones --- drivers/mfd/tps6507x.c | 2 +- drivers/mfd/tps65090.c | 2 +- drivers/mfd/tps65217.c | 2 +- drivers/mfd/tps6586x.c | 2 +- drivers/mfd/tps65910.c | 2 +- drivers/mfd/tps65912-core.c | 2 +- drivers/mfd/tps80031.c | 2 +- 7 files changed, 7 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/tps6507x.c b/drivers/mfd/tps6507x.c index a081b925d10b..3b27482a174f 100644 --- a/drivers/mfd/tps6507x.c +++ b/drivers/mfd/tps6507x.c @@ -24,7 +24,7 @@ #include #include -static struct mfd_cell tps6507x_devs[] = { +static const struct mfd_cell tps6507x_devs[] = { { .name = "tps6507x-pmic", }, diff --git a/drivers/mfd/tps65090.c b/drivers/mfd/tps65090.c index e6f03a733879..ba1a25d758c1 100644 --- a/drivers/mfd/tps65090.c +++ b/drivers/mfd/tps65090.c @@ -64,7 +64,7 @@ static struct resource charger_resources[] = { } }; -static struct mfd_cell tps65090s[] = { +static const struct mfd_cell tps65090s[] = { { .name = "tps65090-pmic", }, diff --git a/drivers/mfd/tps65217.c b/drivers/mfd/tps65217.c index b7be0b295575..6939ae56c2e1 100644 --- a/drivers/mfd/tps65217.c +++ b/drivers/mfd/tps65217.c @@ -30,7 +30,7 @@ #include #include -static struct mfd_cell tps65217s[] = { +static const struct mfd_cell tps65217s[] = { { .name = "tps65217-pmic", }, diff --git a/drivers/mfd/tps6586x.c b/drivers/mfd/tps6586x.c index ee61fd7c198d..d0e57934370f 100644 --- a/drivers/mfd/tps6586x.c +++ b/drivers/mfd/tps6586x.c @@ -103,7 +103,7 @@ static struct resource tps6586x_rtc_resources[] = { }, }; -static struct mfd_cell tps6586x_cell[] = { +static const struct mfd_cell tps6586x_cell[] = { { .name = "tps6586x-gpio", }, diff --git a/drivers/mfd/tps65910.c b/drivers/mfd/tps65910.c index c0f608e3ca9e..1f142d76cbbc 100644 --- a/drivers/mfd/tps65910.c +++ b/drivers/mfd/tps65910.c @@ -36,7 +36,7 @@ static struct resource rtc_resources[] = { } }; -static struct mfd_cell tps65910s[] = { +static const struct mfd_cell tps65910s[] = { { .name = "tps65910-gpio", }, diff --git a/drivers/mfd/tps65912-core.c b/drivers/mfd/tps65912-core.c index 925a044cbdf6..27a518e0eec6 100644 --- a/drivers/mfd/tps65912-core.c +++ b/drivers/mfd/tps65912-core.c @@ -21,7 +21,7 @@ #include #include -static struct mfd_cell tps65912s[] = { +static const struct mfd_cell tps65912s[] = { { .name = "tps65912-pmic", }, diff --git a/drivers/mfd/tps80031.c b/drivers/mfd/tps80031.c index f15ee6d5cfbf..ed6c5b0956e2 100644 --- a/drivers/mfd/tps80031.c +++ b/drivers/mfd/tps80031.c @@ -44,7 +44,7 @@ static struct resource tps80031_rtc_resources[] = { }; /* TPS80031 sub mfd devices */ -static struct mfd_cell tps80031_cell[] = { +static const struct mfd_cell tps80031_cell[] = { { .name = "tps80031-pmic", }, -- cgit v1.2.2 From 603ab143bd41d07e91afc31e44774d09aab005fa Mon Sep 17 00:00:00 2001 From: Bibek Basu Date: Thu, 21 Nov 2013 04:03:29 +0530 Subject: mfd: as3722: Add watchdog support Add watchdog device support for as3722 Signed-off-by: Bibek Basu Signed-off-by: Lee Jones --- drivers/mfd/as3722.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/mfd/as3722.c b/drivers/mfd/as3722.c index 2d9b728a19f8..c71ff0af1547 100644 --- a/drivers/mfd/as3722.c +++ b/drivers/mfd/as3722.c @@ -74,6 +74,9 @@ static const struct mfd_cell as3722_devs[] = { { .name = "as3722-power-off", }, + { + .name = "as3722-wdt", + }, }; static const struct regmap_irq as3722_irqs[] = { -- cgit v1.2.2 From fb7f8ce3bcd12bdfa0940c96ba1d2eddba88d000 Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Thu, 19 Dec 2013 16:28:27 +0100 Subject: iio: ti_am335x_adc: Adjust the closing bracket in tiadc_read_raw() It somehow looks like the ending bracket belongs to the if statement but it does belong to the while loop. This patch moves the bracket where it belongs. Signed-off-by: Sebastian Andrzej Siewior Acked-by: Jonathan Cameron Signed-off-by: Lee Jones --- drivers/iio/adc/ti_am335x_adc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c index 728411ec7642..ce8d03ac900f 100644 --- a/drivers/iio/adc/ti_am335x_adc.c +++ b/drivers/iio/adc/ti_am335x_adc.c @@ -338,7 +338,7 @@ static int tiadc_read_raw(struct iio_dev *indio_dev, while (tiadc_readl(adc_dev, REG_ADCFSM) & SEQ_STATUS) { if (time_after(jiffies, timeout)) return -EAGAIN; - } + } map_val = chan->channel + TOTAL_CHANNELS; /* -- cgit v1.2.2 From 3466bd2273b81a0a29d0e134ba1c78b64b84f40b Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Thu, 19 Dec 2013 16:28:28 +0100 Subject: mfd: ti_am335x_tscadc: Make am335x_tsc_se_update() local Since the "recent" changes, am335x_tsc_se_update() has no longer any users outside of this file so make it local. Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Lee Jones --- drivers/mfd/ti_am335x_tscadc.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/ti_am335x_tscadc.c b/drivers/mfd/ti_am335x_tscadc.c index 88718abfb9ba..67d0eb469a45 100644 --- a/drivers/mfd/ti_am335x_tscadc.c +++ b/drivers/mfd/ti_am335x_tscadc.c @@ -48,11 +48,10 @@ static const struct regmap_config tscadc_regmap_config = { .val_bits = 32, }; -void am335x_tsc_se_update(struct ti_tscadc_dev *tsadc) +static void am335x_tsc_se_update(struct ti_tscadc_dev *tsadc) { tscadc_writel(tsadc, REG_SE, tsadc->reg_se_cache); } -EXPORT_SYMBOL_GPL(am335x_tsc_se_update); void am335x_tsc_se_set(struct ti_tscadc_dev *tsadc, u32 val) { -- cgit v1.2.2 From 7e170c6e4f7501bea900aa66b2b27a6ce5001e25 Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Thu, 19 Dec 2013 16:28:29 +0100 Subject: mfd: ti_am335x_tscadc: Don't read back REG_SE The purpose of reg_se_cache has been defeated. It should avoid the read-back of the register to avoid the latency and the fact that the bits are reset to 0 after the individual conversation took place. The reason why this is required like this to work, is that read-back of the register removes the bits of the ADC so they do not start another conversation after the register is re-written from the TSC side for the update. To avoid the not required read-back I introduce a "set once" variant which does not update the cache mask. After the conversation completes, the bit is removed from the SE register anyway and we don't plan a new conversation "any time soon". The current set function is renamed to set_cache to distinguish the two operations. This is a small preparation for a larger sync-rework. Signed-off-by: Sebastian Andrzej Siewior Acked-by: Dmitry Torokhov Acked-by: Jonathan Cameron Signed-off-by: Lee Jones --- drivers/iio/adc/ti_am335x_adc.c | 4 ++-- drivers/input/touchscreen/ti_am335x_tsc.c | 4 ++-- drivers/mfd/ti_am335x_tscadc.c | 16 ++++++++++++---- 3 files changed, 16 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c index ce8d03ac900f..95eef8e89979 100644 --- a/drivers/iio/adc/ti_am335x_adc.c +++ b/drivers/iio/adc/ti_am335x_adc.c @@ -181,7 +181,7 @@ static int tiadc_buffer_postenable(struct iio_dev *indio_dev) enb |= (get_adc_step_bit(adc_dev, bit) << 1); adc_dev->buffer_en_ch_steps = enb; - am335x_tsc_se_set(adc_dev->mfd_tscadc, enb); + am335x_tsc_se_set_cache(adc_dev->mfd_tscadc, enb); tiadc_writel(adc_dev, REG_IRQSTATUS, IRQENB_FIFO1THRES | IRQENB_FIFO1OVRRUN | IRQENB_FIFO1UNDRFLW); @@ -332,7 +332,7 @@ static int tiadc_read_raw(struct iio_dev *indio_dev, return -EBUSY; step_en = get_adc_step_mask(adc_dev); - am335x_tsc_se_set(adc_dev->mfd_tscadc, step_en); + am335x_tsc_se_set_once(adc_dev->mfd_tscadc, step_en); /* Wait for ADC sequencer to complete sampling */ while (tiadc_readl(adc_dev, REG_ADCFSM) & SEQ_STATUS) { diff --git a/drivers/input/touchscreen/ti_am335x_tsc.c b/drivers/input/touchscreen/ti_am335x_tsc.c index 68beadaabceb..2ca5a7bee04e 100644 --- a/drivers/input/touchscreen/ti_am335x_tsc.c +++ b/drivers/input/touchscreen/ti_am335x_tsc.c @@ -198,7 +198,7 @@ static void titsc_step_config(struct titsc *ts_dev) /* The steps1 … end and bit 0 for TS_Charge */ stepenable = (1 << (end_step + 2)) - 1; ts_dev->step_mask = stepenable; - am335x_tsc_se_set(ts_dev->mfd_tscadc, ts_dev->step_mask); + am335x_tsc_se_set_cache(ts_dev->mfd_tscadc, ts_dev->step_mask); } static void titsc_read_coordinates(struct titsc *ts_dev, @@ -322,7 +322,7 @@ static irqreturn_t titsc_irq(int irq, void *dev) if (irqclr) { titsc_writel(ts_dev, REG_IRQSTATUS, irqclr); - am335x_tsc_se_set(ts_dev->mfd_tscadc, ts_dev->step_mask); + am335x_tsc_se_set_cache(ts_dev->mfd_tscadc, ts_dev->step_mask); return IRQ_HANDLED; } return IRQ_NONE; diff --git a/drivers/mfd/ti_am335x_tscadc.c b/drivers/mfd/ti_am335x_tscadc.c index 67d0eb469a45..cb0c211fc7d8 100644 --- a/drivers/mfd/ti_am335x_tscadc.c +++ b/drivers/mfd/ti_am335x_tscadc.c @@ -53,24 +53,32 @@ static void am335x_tsc_se_update(struct ti_tscadc_dev *tsadc) tscadc_writel(tsadc, REG_SE, tsadc->reg_se_cache); } -void am335x_tsc_se_set(struct ti_tscadc_dev *tsadc, u32 val) +void am335x_tsc_se_set_cache(struct ti_tscadc_dev *tsadc, u32 val) { unsigned long flags; spin_lock_irqsave(&tsadc->reg_lock, flags); - tsadc->reg_se_cache = tscadc_readl(tsadc, REG_SE); tsadc->reg_se_cache |= val; am335x_tsc_se_update(tsadc); spin_unlock_irqrestore(&tsadc->reg_lock, flags); } -EXPORT_SYMBOL_GPL(am335x_tsc_se_set); +EXPORT_SYMBOL_GPL(am335x_tsc_se_set_cache); + +void am335x_tsc_se_set_once(struct ti_tscadc_dev *tsadc, u32 val) +{ + unsigned long flags; + + spin_lock_irqsave(&tsadc->reg_lock, flags); + tscadc_writel(tsadc, REG_SE, tsadc->reg_se_cache | val); + spin_unlock_irqrestore(&tsadc->reg_lock, flags); +} +EXPORT_SYMBOL_GPL(am335x_tsc_se_set_once); void am335x_tsc_se_clr(struct ti_tscadc_dev *tsadc, u32 val) { unsigned long flags; spin_lock_irqsave(&tsadc->reg_lock, flags); - tsadc->reg_se_cache = tscadc_readl(tsadc, REG_SE); tsadc->reg_se_cache &= ~val; am335x_tsc_se_update(tsadc); spin_unlock_irqrestore(&tsadc->reg_lock, flags); -- cgit v1.2.2 From 3954b7bfc665fed878cabe57342bae34d2391478 Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Thu, 19 Dec 2013 16:28:30 +0100 Subject: mfd: ti_am335x: Drop am335x_tsc_se_update() from resume path The update of the SE register in MFD doesn't look right as it has nothing to do with it. The better place to do it is in TSC driver (which is already doing it) and in the ADC driver which needs this only in the continues mode. Signed-off-by: Sebastian Andrzej Siewior Acked-by: Jonathan Cameron Signed-off-by: Lee Jones --- drivers/iio/adc/ti_am335x_adc.c | 2 ++ drivers/mfd/ti_am335x_tscadc.c | 1 - 2 files changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c index 95eef8e89979..e0dc2d0e7590 100644 --- a/drivers/iio/adc/ti_am335x_adc.c +++ b/drivers/iio/adc/ti_am335x_adc.c @@ -199,6 +199,7 @@ static int tiadc_buffer_predisable(struct iio_dev *indio_dev) tiadc_writel(adc_dev, REG_IRQCLR, (IRQENB_FIFO1THRES | IRQENB_FIFO1OVRRUN | IRQENB_FIFO1UNDRFLW)); am335x_tsc_se_clr(adc_dev->mfd_tscadc, adc_dev->buffer_en_ch_steps); + adc_dev->buffer_en_ch_steps = 0; /* Flush FIFO of leftover data in the time it takes to disable adc */ fifo1count = tiadc_readl(adc_dev, REG_FIFO1CNT); @@ -491,6 +492,7 @@ static int tiadc_resume(struct device *dev) tiadc_writel(adc_dev, REG_CTRL, restore); tiadc_step_config(indio_dev); + am335x_tsc_se_set(adc_dev->mfd_tscadc, adc_dev->buffer_en_ch_steps); return 0; } diff --git a/drivers/mfd/ti_am335x_tscadc.c b/drivers/mfd/ti_am335x_tscadc.c index cb0c211fc7d8..157f5699a33c 100644 --- a/drivers/mfd/ti_am335x_tscadc.c +++ b/drivers/mfd/ti_am335x_tscadc.c @@ -309,7 +309,6 @@ static int tscadc_resume(struct device *dev) if (tscadc_dev->tsc_cell != -1) tscadc_idle_config(tscadc_dev); - am335x_tsc_se_update(tscadc_dev); restore = tscadc_readl(tscadc_dev, REG_CTRL); tscadc_writel(tscadc_dev, REG_CTRL, (restore | CNTRLREG_TSCSSENB)); -- cgit v1.2.2 From 7ca6740cd1cd410828a01151a044b51910d06eff Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Thu, 19 Dec 2013 16:28:31 +0100 Subject: mfd: input: iio: ti_amm335x: Rework TSC/ADC synchronization The ADC driver always programs all possible ADC values and discards them except for the value IIO asked for. On the am335x-evm the driver programs four values and it takes 500us to gather them. Reducing the number of conversations down to the (required) one also reduces the busy loop down to 125us. This leads to another error, namely the FIFOCOUNT register is sometimes (like one out of 10 attempts) not updated in time leading to EBUSY. The next read has the FIFOCOUNT register updated. Checking for the ADCSTAT register for being idle isn't a good choice either. The problem is that if TSC is used at the same time, the HW completes the conversation for ADC *and* before the driver noticed it, the HW begins to perform a TSC conversation and so the driver never seen the HW idle. The next time we would have two values in the FIFO but since the driver reads everything we always see the current one. So instead of polling for the IDLE bit in ADCStatus register, we should check the FIFOCOUNT register. It should be one instead of zero because we request one value. This change in turn leads to another error. Sometimes if TSC & ADC are used together the TSC starts generating interrupts even if nobody actually touched the touchscreen. The interrupts seem valid because TSC's FIFO is filled with values for each channel of the TSC. This condition stops after a few ADC reads but will occur again. Not good. On top of this (even without the changes I just mentioned) there is a ADC & TSC lockup condition which was reported to me by Jeff Lance including the following test case: A busy loop of "cat /sys/bus/iio/devices/iio\:device0/in_voltage4_raw" and a mug on touch screen. With this setup, the hardware will lockup after something between 20 minutes and it could take up to a couple of hours. During that lockup, the ADCSTAT register says 0x30 (or 0x70) which means STEP_ID = IDLE and FSM_BUSY = yes. That means the hardware says that it is idle and busy at the same time which is an invalid condition. For all this reasons I decided to rework this TSC/ADC part and add a handshake / synchronization here: First the ADC signals that it needs the HW and writes a 0 mask into the SE register. The HW (if active) will complete the current conversation and become idle. The TSC driver will gather the values from the FIFO (woken up by an interrupt) and won't "enable" another conversation. Instead it will wake up the ADC driver which is already waiting. The ADC driver will start "its" conversation and once it is done, it will enable the TSC steps so the TSC will work again. After this rework I haven't observed the lockup so far. Plus the busy loop has been reduced from 500us to 125us. The continues-read mode remains unchanged. Signed-off-by: Sebastian Andrzej Siewior Acked-by: Jonathan Cameron Signed-off-by: Lee Jones --- drivers/iio/adc/ti_am335x_adc.c | 64 +++++++++++++++++++++++++++++------------ drivers/mfd/ti_am335x_tscadc.c | 63 +++++++++++++++++++++++++++++++++------- 2 files changed, 99 insertions(+), 28 deletions(-) (limited to 'drivers') diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c index e0dc2d0e7590..dff7343405e2 100644 --- a/drivers/iio/adc/ti_am335x_adc.c +++ b/drivers/iio/adc/ti_am335x_adc.c @@ -60,6 +60,24 @@ static u32 get_adc_step_mask(struct tiadc_device *adc_dev) return step_en; } +static u32 get_adc_chan_step_mask(struct tiadc_device *adc_dev, + struct iio_chan_spec const *chan) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(adc_dev->channel_step); i++) { + if (chan->channel == adc_dev->channel_line[i]) { + u32 step; + + step = adc_dev->channel_step[i]; + /* +1 for the charger */ + return 1 << (step + 1); + } + } + WARN_ON(1); + return 0; +} + static u32 get_adc_step_bit(struct tiadc_device *adc_dev, int chan) { return 1 << adc_dev->channel_step[chan]; @@ -326,34 +344,43 @@ static int tiadc_read_raw(struct iio_dev *indio_dev, unsigned int fifo1count, read, stepid; bool found = false; u32 step_en; - unsigned long timeout = jiffies + usecs_to_jiffies - (IDLE_TIMEOUT * adc_dev->channels); + unsigned long timeout; if (iio_buffer_enabled(indio_dev)) return -EBUSY; - step_en = get_adc_step_mask(adc_dev); + step_en = get_adc_chan_step_mask(adc_dev, chan); + if (!step_en) + return -EINVAL; + + fifo1count = tiadc_readl(adc_dev, REG_FIFO1CNT); + while (fifo1count--) + tiadc_readl(adc_dev, REG_FIFO1); + am335x_tsc_se_set_once(adc_dev->mfd_tscadc, step_en); - /* Wait for ADC sequencer to complete sampling */ - while (tiadc_readl(adc_dev, REG_ADCFSM) & SEQ_STATUS) { - if (time_after(jiffies, timeout)) + timeout = jiffies + usecs_to_jiffies + (IDLE_TIMEOUT * adc_dev->channels); + /* Wait for Fifo threshold interrupt */ + while (1) { + fifo1count = tiadc_readl(adc_dev, REG_FIFO1CNT); + if (fifo1count) + break; + + if (time_after(jiffies, timeout)) { + am335x_tsc_se_adc_done(adc_dev->mfd_tscadc); return -EAGAIN; + } } map_val = chan->channel + TOTAL_CHANNELS; /* - * When the sub-system is first enabled, - * the sequencer will always start with the - * lowest step (1) and continue until step (16). - * For ex: If we have enabled 4 ADC channels and - * currently use only 1 out of them, the - * sequencer still configures all the 4 steps, - * leading to 3 unwanted data. - * Hence we need to flush out this data. + * We check the complete FIFO. We programmed just one entry but in case + * something went wrong we left empty handed (-EAGAIN previously) and + * then the value apeared somehow in the FIFO we would have two entries. + * Therefore we read every item and keep only the latest version of the + * requested channel. */ - - fifo1count = tiadc_readl(adc_dev, REG_FIFO1CNT); for (i = 0; i < fifo1count; i++) { read = tiadc_readl(adc_dev, REG_FIFO1); stepid = read & FIFOREAD_CHNLID_MASK; @@ -365,6 +392,7 @@ static int tiadc_read_raw(struct iio_dev *indio_dev, *val = (u16) read; } } + am335x_tsc_se_adc_done(adc_dev->mfd_tscadc); if (found == false) return -EBUSY; @@ -492,8 +520,8 @@ static int tiadc_resume(struct device *dev) tiadc_writel(adc_dev, REG_CTRL, restore); tiadc_step_config(indio_dev); - am335x_tsc_se_set(adc_dev->mfd_tscadc, adc_dev->buffer_en_ch_steps); - + am335x_tsc_se_set_cache(adc_dev->mfd_tscadc, + adc_dev->buffer_en_ch_steps); return 0; } diff --git a/drivers/mfd/ti_am335x_tscadc.c b/drivers/mfd/ti_am335x_tscadc.c index 157f5699a33c..d4e860413bb5 100644 --- a/drivers/mfd/ti_am335x_tscadc.c +++ b/drivers/mfd/ti_am335x_tscadc.c @@ -24,6 +24,7 @@ #include #include #include +#include #include @@ -48,31 +49,71 @@ static const struct regmap_config tscadc_regmap_config = { .val_bits = 32, }; -static void am335x_tsc_se_update(struct ti_tscadc_dev *tsadc) -{ - tscadc_writel(tsadc, REG_SE, tsadc->reg_se_cache); -} - void am335x_tsc_se_set_cache(struct ti_tscadc_dev *tsadc, u32 val) { unsigned long flags; spin_lock_irqsave(&tsadc->reg_lock, flags); - tsadc->reg_se_cache |= val; - am335x_tsc_se_update(tsadc); + tsadc->reg_se_cache = val; + if (tsadc->adc_waiting) + wake_up(&tsadc->reg_se_wait); + else if (!tsadc->adc_in_use) + tscadc_writel(tsadc, REG_SE, val); + spin_unlock_irqrestore(&tsadc->reg_lock, flags); } EXPORT_SYMBOL_GPL(am335x_tsc_se_set_cache); +static void am335x_tscadc_need_adc(struct ti_tscadc_dev *tsadc) +{ + DEFINE_WAIT(wait); + u32 reg; + + /* + * disable TSC steps so it does not run while the ADC is using it. If + * write 0 while it is running (it just started or was already running) + * then it completes all steps that were enabled and stops then. + */ + tscadc_writel(tsadc, REG_SE, 0); + reg = tscadc_readl(tsadc, REG_ADCFSM); + if (reg & SEQ_STATUS) { + tsadc->adc_waiting = true; + prepare_to_wait(&tsadc->reg_se_wait, &wait, + TASK_UNINTERRUPTIBLE); + spin_unlock_irq(&tsadc->reg_lock); + + schedule(); + + spin_lock_irq(&tsadc->reg_lock); + finish_wait(&tsadc->reg_se_wait, &wait); + + reg = tscadc_readl(tsadc, REG_ADCFSM); + WARN_ON(reg & SEQ_STATUS); + tsadc->adc_waiting = false; + } + tsadc->adc_in_use = true; +} + void am335x_tsc_se_set_once(struct ti_tscadc_dev *tsadc, u32 val) +{ + spin_lock_irq(&tsadc->reg_lock); + am335x_tscadc_need_adc(tsadc); + + tscadc_writel(tsadc, REG_SE, val); + spin_unlock_irq(&tsadc->reg_lock); +} +EXPORT_SYMBOL_GPL(am335x_tsc_se_set_once); + +void am335x_tsc_se_adc_done(struct ti_tscadc_dev *tsadc) { unsigned long flags; spin_lock_irqsave(&tsadc->reg_lock, flags); - tscadc_writel(tsadc, REG_SE, tsadc->reg_se_cache | val); + tsadc->adc_in_use = false; + tscadc_writel(tsadc, REG_SE, tsadc->reg_se_cache); spin_unlock_irqrestore(&tsadc->reg_lock, flags); } -EXPORT_SYMBOL_GPL(am335x_tsc_se_set_once); +EXPORT_SYMBOL_GPL(am335x_tsc_se_adc_done); void am335x_tsc_se_clr(struct ti_tscadc_dev *tsadc, u32 val) { @@ -80,7 +121,7 @@ void am335x_tsc_se_clr(struct ti_tscadc_dev *tsadc, u32 val) spin_lock_irqsave(&tsadc->reg_lock, flags); tsadc->reg_se_cache &= ~val; - am335x_tsc_se_update(tsadc); + tscadc_writel(tsadc, REG_SE, tsadc->reg_se_cache); spin_unlock_irqrestore(&tsadc->reg_lock, flags); } EXPORT_SYMBOL_GPL(am335x_tsc_se_clr); @@ -188,6 +229,8 @@ static int ti_tscadc_probe(struct platform_device *pdev) } spin_lock_init(&tscadc->reg_lock); + init_waitqueue_head(&tscadc->reg_se_wait); + pm_runtime_enable(&pdev->dev); pm_runtime_get_sync(&pdev->dev); -- cgit v1.2.2 From e553fa6e17af10b306b4a42dd19fb23b7254d6a1 Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Mon, 25 Nov 2013 12:27:29 +0900 Subject: mfd: mc13xxx: Remove unnecessary spi_set_drvdata() The driver core clears the driver data to NULL after device_release or on probe failure. Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han Signed-off-by: Lee Jones --- drivers/mfd/mc13xxx-spi.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mfd/mc13xxx-spi.c b/drivers/mfd/mc13xxx-spi.c index 5f14ef6693c2..cbcc86d9b6e7 100644 --- a/drivers/mfd/mc13xxx-spi.c +++ b/drivers/mfd/mc13xxx-spi.c @@ -149,7 +149,6 @@ static int mc13xxx_spi_probe(struct spi_device *spi) ret = PTR_ERR(mc13xxx->regmap); dev_err(mc13xxx->dev, "Failed to initialize register map: %d\n", ret); - spi_set_drvdata(spi, NULL); return ret; } -- cgit v1.2.2 From 9922b4129c898223513ff5bee007463182a19b58 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Mon, 25 Nov 2013 13:22:30 +0100 Subject: mfd: cros ec: spi: Use consistent function names Rename cros_ec_{probe,remove}_spi() to cros_ec_spi_{probe,remove}() for consistency. Signed-off-by: Thierry Reding Signed-off-by: Lee Jones --- drivers/mfd/cros_ec_spi.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/cros_ec_spi.c b/drivers/mfd/cros_ec_spi.c index 27be73523b9c..5658ec48838f 100644 --- a/drivers/mfd/cros_ec_spi.c +++ b/drivers/mfd/cros_ec_spi.c @@ -284,7 +284,7 @@ static int cros_ec_command_spi_xfer(struct cros_ec_device *ec_dev, return 0; } -static int cros_ec_probe_spi(struct spi_device *spi) +static int cros_ec_spi_probe(struct spi_device *spi) { struct device *dev = &spi->dev; struct cros_ec_device *ec_dev; @@ -326,7 +326,7 @@ static int cros_ec_probe_spi(struct spi_device *spi) return 0; } -static int cros_ec_remove_spi(struct spi_device *spi) +static int cros_ec_spi_remove(struct spi_device *spi) { struct cros_ec_device *ec_dev; @@ -367,8 +367,8 @@ static struct spi_driver cros_ec_driver_spi = { .owner = THIS_MODULE, .pm = &cros_ec_spi_pm_ops, }, - .probe = cros_ec_probe_spi, - .remove = cros_ec_remove_spi, + .probe = cros_ec_spi_probe, + .remove = cros_ec_spi_remove, .id_table = cros_ec_spi_id, }; -- cgit v1.2.2 From 192afe5e16054f43113803d6751f567ef2e467ae Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Mon, 25 Nov 2013 13:22:31 +0100 Subject: mfd: cros ec: i2c: Use consistent function names Rename cros_ec_{probe,remove}_i2c() to cros_ec_i2c_{probe,remove}() for consistency. Signed-off-by: Thierry Reding Signed-off-by: Lee Jones --- drivers/mfd/cros_ec_i2c.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/cros_ec_i2c.c b/drivers/mfd/cros_ec_i2c.c index 123044608b63..4f71be99a183 100644 --- a/drivers/mfd/cros_ec_i2c.c +++ b/drivers/mfd/cros_ec_i2c.c @@ -120,7 +120,7 @@ static int cros_ec_command_xfer(struct cros_ec_device *ec_dev, return ret; } -static int cros_ec_probe_i2c(struct i2c_client *client, +static int cros_ec_i2c_probe(struct i2c_client *client, const struct i2c_device_id *dev_id) { struct device *dev = &client->dev; @@ -150,7 +150,7 @@ static int cros_ec_probe_i2c(struct i2c_client *client, return 0; } -static int cros_ec_remove_i2c(struct i2c_client *client) +static int cros_ec_i2c_remove(struct i2c_client *client) { struct cros_ec_device *ec_dev = i2c_get_clientdata(client); @@ -190,8 +190,8 @@ static struct i2c_driver cros_ec_driver = { .owner = THIS_MODULE, .pm = &cros_ec_i2c_pm_ops, }, - .probe = cros_ec_probe_i2c, - .remove = cros_ec_remove_i2c, + .probe = cros_ec_i2c_probe, + .remove = cros_ec_i2c_remove, .id_table = cros_ec_i2c_id, }; -- cgit v1.2.2 From f6d6daaf9b5260f1769ed040caca53e1c087ca8b Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Tue, 26 Nov 2013 14:50:27 +0100 Subject: mfd: sec: Add PM ops and make it a wake up source Add PM suspend/resume ops to the sec MFD core driver and make it a wake up source. This allows proper waking from suspend to RAM and also fixes broken interrupts after resuming: [ 42.705703] sec_pmic 7-0066: Failed to read IRQ status: -5 Interrupts stop working after first resume initiated by them (e.g. by RTC Alarm interrupt) because interrupt registers were not cleared properly. When device is woken up from suspend by RTC Alarm, an interrupt occurs before resuming I2C bus controller. The interrupt is handled by regmap_irq_thread which tries to read RTC registers. This read fails (I2C is still suspended) and RTC Alarm interrupt is disabled. Disable the S5M8767 interrupts during suspend (disable_irq()) and enable them during resume so the device will be still woken up but the interrupt won't happen before resuming I2C bus. Signed-off-by: Krzysztof Kozlowski Signed-off-by: Kyungmin Park Signed-off-by: Lee Jones --- drivers/mfd/sec-core.c | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) (limited to 'drivers') diff --git a/drivers/mfd/sec-core.c b/drivers/mfd/sec-core.c index b31824c33e15..cca0f990d287 100644 --- a/drivers/mfd/sec-core.c +++ b/drivers/mfd/sec-core.c @@ -323,6 +323,8 @@ static int sec_pmic_probe(struct i2c_client *i2c, if (ret) goto err; + device_init_wakeup(sec_pmic->dev, sec_pmic->wakeup); + return ret; err: @@ -341,6 +343,43 @@ static int sec_pmic_remove(struct i2c_client *i2c) return 0; } +static int sec_pmic_suspend(struct device *dev) +{ + struct i2c_client *i2c = container_of(dev, struct i2c_client, dev); + struct sec_pmic_dev *sec_pmic = i2c_get_clientdata(i2c); + + if (device_may_wakeup(dev)) { + enable_irq_wake(sec_pmic->irq); + /* + * PMIC IRQ must be disabled during suspend for RTC alarm + * to work properly. + * When device is woken up from suspend by RTC Alarm, an + * interrupt occurs before resuming I2C bus controller. + * The interrupt is handled by regmap_irq_thread which tries + * to read RTC registers. This read fails (I2C is still + * suspended) and RTC Alarm interrupt is disabled. + */ + disable_irq(sec_pmic->irq); + } + + return 0; +} + +static int sec_pmic_resume(struct device *dev) +{ + struct i2c_client *i2c = container_of(dev, struct i2c_client, dev); + struct sec_pmic_dev *sec_pmic = i2c_get_clientdata(i2c); + + if (device_may_wakeup(dev)) { + disable_irq_wake(sec_pmic->irq); + enable_irq(sec_pmic->irq); + } + + return 0; +} + +static SIMPLE_DEV_PM_OPS(sec_pmic_pm_ops, sec_pmic_suspend, sec_pmic_resume); + static const struct i2c_device_id sec_pmic_id[] = { { "sec_pmic", 0 }, { } @@ -351,6 +390,7 @@ static struct i2c_driver sec_pmic_driver = { .driver = { .name = "sec_pmic", .owner = THIS_MODULE, + .pm = &sec_pmic_pm_ops, .of_match_table = of_match_ptr(sec_dt_match), }, .probe = sec_pmic_probe, -- cgit v1.2.2 From 3008ddbe061b0f1d5c8ffbb599f105b67cf06637 Mon Sep 17 00:00:00 2001 From: Chanwoo Choi Date: Fri, 22 Nov 2013 16:51:05 +0100 Subject: mfd: max14577: Add max14577 MFD driver core This patch adds max14577 core/irq driver to support MUIC(Micro USB IC) device and charger device and support irq domain method to control internal interrupt of max14577 device. Also, this patch supports DT binding with max14577_i2c_parse_dt(). The MAXIM 14577 chip contains Micro-USB Interface Circuit and Li+ Battery Charger. It contains accessory and USB charger detection logic. It supports USB 2.0 Hi-Speed, UART and stereo audio signals over Micro-USB connector. The battery charger is compliant with the USB Battery Charging Specification Revision 1.1. It has also SFOUT LDO output for powering USB devices. Reviewed-by: Mark Brown Signed-off-by: Chanwoo Choi Signed-off-by: Krzysztof Kozlowski Signed-off-by: Kyungmin Park Signed-off-by: Lee Jones --- drivers/mfd/Kconfig | 13 +++ drivers/mfd/Makefile | 1 + drivers/mfd/max14577.c | 243 +++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 257 insertions(+) create mode 100644 drivers/mfd/max14577.c (limited to 'drivers') diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index dd671582c9a1..e54a6fd2a5bd 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -321,6 +321,19 @@ config MFD_88PM860X select individual components like voltage regulators, RTC and battery-charger under the corresponding menus. +config MFD_MAX14577 + bool "Maxim Semiconductor MAX14577 MUIC + Charger Support" + depends on I2C=y + select MFD_CORE + select REGMAP_I2C + select IRQ_DOMAIN + help + Say yes here to support for Maxim Semiconductor MAX14577. + This is a Micro-USB IC with Charger controls on chip. + This driver provides common support for accessing the device; + additional drivers must be enabled in order to use the functionality + of the device. + config MFD_MAX77686 bool "Maxim Semiconductor MAX77686 PMIC Support" depends on I2C=y diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 8a28dc90fe78..2e18b05017d9 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -110,6 +110,7 @@ obj-$(CONFIG_MFD_DA9055) += da9055.o da9063-objs := da9063-core.o da9063-irq.o da9063-i2c.o obj-$(CONFIG_MFD_DA9063) += da9063.o +obj-$(CONFIG_MFD_MAX14577) += max14577.o obj-$(CONFIG_MFD_MAX77686) += max77686.o max77686-irq.o obj-$(CONFIG_MFD_MAX77693) += max77693.o max77693-irq.o obj-$(CONFIG_MFD_MAX8907) += max8907.o diff --git a/drivers/mfd/max14577.c b/drivers/mfd/max14577.c new file mode 100644 index 000000000000..94b766d8cb15 --- /dev/null +++ b/drivers/mfd/max14577.c @@ -0,0 +1,243 @@ +/* + * max14577.c - mfd core driver for the Maxim 14577 + * + * Copyright (C) 2013 Samsung Electrnoics + * Chanwoo Choi + * Krzysztof Kozlowski + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * This driver is based on max8997.c + */ + +#include +#include +#include +#include +#include + +static struct mfd_cell max14577_devs[] = { + { .name = "max14577-muic", }, + { .name = "max14577-regulator", }, + { .name = "max14577-charger", }, +}; + +static bool max14577_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case MAX14577_REG_INT1 ... MAX14577_REG_STATUS3: + return true; + default: + break; + } + return false; +} + +static const struct regmap_config max14577_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .volatile_reg = max14577_volatile_reg, + .max_register = MAX14577_REG_END, +}; + +static const struct regmap_irq max14577_irqs[] = { + /* INT1 interrupts */ + { .reg_offset = 0, .mask = INT1_ADC_MASK, }, + { .reg_offset = 0, .mask = INT1_ADCLOW_MASK, }, + { .reg_offset = 0, .mask = INT1_ADCERR_MASK, }, + /* INT2 interrupts */ + { .reg_offset = 1, .mask = INT2_CHGTYP_MASK, }, + { .reg_offset = 1, .mask = INT2_CHGDETRUN_MASK, }, + { .reg_offset = 1, .mask = INT2_DCDTMR_MASK, }, + { .reg_offset = 1, .mask = INT2_DBCHG_MASK, }, + { .reg_offset = 1, .mask = INT2_VBVOLT_MASK, }, + /* INT3 interrupts */ + { .reg_offset = 2, .mask = INT3_EOC_MASK, }, + { .reg_offset = 2, .mask = INT3_CGMBC_MASK, }, + { .reg_offset = 2, .mask = INT3_OVP_MASK, }, + { .reg_offset = 2, .mask = INT3_MBCCHGERR_MASK, }, +}; + +static const struct regmap_irq_chip max14577_irq_chip = { + .name = "max14577", + .status_base = MAX14577_REG_INT1, + .mask_base = MAX14577_REG_INTMASK1, + .mask_invert = 1, + .num_regs = 3, + .irqs = max14577_irqs, + .num_irqs = ARRAY_SIZE(max14577_irqs), +}; + +static int max14577_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct max14577 *max14577; + struct max14577_platform_data *pdata = dev_get_platdata(&i2c->dev); + struct device_node *np = i2c->dev.of_node; + u8 reg_data; + int ret = 0; + + if (np) { + pdata = devm_kzalloc(&i2c->dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return -ENOMEM; + i2c->dev.platform_data = pdata; + } + + if (!pdata) { + dev_err(&i2c->dev, "No platform data found: %ld\n", + PTR_ERR(pdata)); + return -EINVAL; + } + + max14577 = devm_kzalloc(&i2c->dev, sizeof(*max14577), GFP_KERNEL); + if (!max14577) + return -ENOMEM; + + i2c_set_clientdata(i2c, max14577); + max14577->dev = &i2c->dev; + max14577->i2c = i2c; + max14577->irq = i2c->irq; + + max14577->regmap = devm_regmap_init_i2c(i2c, &max14577_regmap_config); + if (IS_ERR(max14577->regmap)) { + ret = PTR_ERR(max14577->regmap); + dev_err(max14577->dev, "Failed to allocate register map: %d\n", + ret); + return ret; + } + + ret = max14577_read_reg(max14577->regmap, MAX14577_REG_DEVICEID, + ®_data); + if (ret) { + dev_err(max14577->dev, "Device not found on this channel: %d\n", + ret); + return ret; + } + max14577->vendor_id = ((reg_data & DEVID_VENDORID_MASK) >> + DEVID_VENDORID_SHIFT); + max14577->device_id = ((reg_data & DEVID_DEVICEID_MASK) >> + DEVID_DEVICEID_SHIFT); + dev_info(max14577->dev, "Device ID: 0x%x, vendor: 0x%x\n", + max14577->device_id, max14577->vendor_id); + + ret = regmap_add_irq_chip(max14577->regmap, max14577->irq, + IRQF_TRIGGER_FALLING | IRQF_ONESHOT, 0, + &max14577_irq_chip, + &max14577->irq_data); + if (ret != 0) { + dev_err(&i2c->dev, "Failed to request IRQ %d: %d\n", + max14577->irq, ret); + return ret; + } + + ret = mfd_add_devices(max14577->dev, -1, max14577_devs, + ARRAY_SIZE(max14577_devs), NULL, 0, + regmap_irq_get_domain(max14577->irq_data)); + if (ret < 0) + goto err_mfd; + + device_init_wakeup(max14577->dev, 1); + + return 0; + +err_mfd: + regmap_del_irq_chip(max14577->irq, max14577->irq_data); + + return ret; +} + +static int max14577_i2c_remove(struct i2c_client *i2c) +{ + struct max14577 *max14577 = i2c_get_clientdata(i2c); + + mfd_remove_devices(max14577->dev); + regmap_del_irq_chip(max14577->irq, max14577->irq_data); + + return 0; +} + +static const struct i2c_device_id max14577_i2c_id[] = { + { "max14577", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, max14577_i2c_id); + +static int max14577_suspend(struct device *dev) +{ + struct i2c_client *i2c = container_of(dev, struct i2c_client, dev); + struct max14577 *max14577 = i2c_get_clientdata(i2c); + + if (device_may_wakeup(dev)) { + enable_irq_wake(max14577->irq); + /* + * MUIC IRQ must be disabled during suspend if this is + * a wake up source because it will be handled before + * resuming I2C. + * + * When device is woken up from suspend (e.g. by ADC change), + * an interrupt occurs before resuming I2C bus controller. + * Interrupt handler tries to read registers but this read + * will fail because I2C is still suspended. + */ + disable_irq(max14577->irq); + } + + return 0; +} + +static int max14577_resume(struct device *dev) +{ + struct i2c_client *i2c = container_of(dev, struct i2c_client, dev); + struct max14577 *max14577 = i2c_get_clientdata(i2c); + + if (device_may_wakeup(dev)) { + disable_irq_wake(max14577->irq); + enable_irq(max14577->irq); + } + + return 0; +} + +static struct of_device_id max14577_dt_match[] = { + { .compatible = "maxim,max14577", }, + {}, +}; + +static SIMPLE_DEV_PM_OPS(max14577_pm, max14577_suspend, max14577_resume); + +static struct i2c_driver max14577_i2c_driver = { + .driver = { + .name = "max14577", + .owner = THIS_MODULE, + .pm = &max14577_pm, + .of_match_table = of_match_ptr(max14577_dt_match), + }, + .probe = max14577_i2c_probe, + .remove = max14577_i2c_remove, + .id_table = max14577_i2c_id, +}; + +static int __init max14577_i2c_init(void) +{ + return i2c_add_driver(&max14577_i2c_driver); +} +subsys_initcall(max14577_i2c_init); + +static void __exit max14577_i2c_exit(void) +{ + i2c_del_driver(&max14577_i2c_driver); +} +module_exit(max14577_i2c_exit); + +MODULE_AUTHOR("Chanwoo Choi , Krzysztof Kozlowski "); +MODULE_DESCRIPTION("MAXIM 14577 multi-function core driver"); +MODULE_LICENSE("GPL"); -- cgit v1.2.2 From 41096801f9de9b86ddfdfabd195e604b1c1087fe Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Wed, 27 Nov 2013 15:16:17 +0100 Subject: mfd: max14577: Match regulator by of_compatible string Match max14577 regulator driver by of_compatible specified in mfd_cell. Signed-off-by: Krzysztof Kozlowski Signed-off-by: Lee Jones --- drivers/mfd/max14577.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mfd/max14577.c b/drivers/mfd/max14577.c index 94b766d8cb15..1337c4527028 100644 --- a/drivers/mfd/max14577.c +++ b/drivers/mfd/max14577.c @@ -26,7 +26,10 @@ static struct mfd_cell max14577_devs[] = { { .name = "max14577-muic", }, - { .name = "max14577-regulator", }, + { + .name = "max14577-regulator", + .of_compatible = "maxim,max14577-regulator", + }, { .name = "max14577-charger", }, }; -- cgit v1.2.2 From a30fffb0606c033d1253261651113c1632aa5f65 Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Thu, 28 Nov 2013 09:09:43 +0100 Subject: mfd: sec: Constify regmap configs and regmap irqs Add "const" to "static struct regmap_irq" and "static struct regmap_config". Acked-by: Sangbeom Kim Reviewed-by: Mark Brown Signed-off-by: Krzysztof Kozlowski Signed-off-by: Lee Jones --- drivers/mfd/sec-core.c | 8 ++++---- drivers/mfd/sec-irq.c | 12 ++++++------ 2 files changed, 10 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/sec-core.c b/drivers/mfd/sec-core.c index cca0f990d287..3ad1b2fbee4a 100644 --- a/drivers/mfd/sec-core.c +++ b/drivers/mfd/sec-core.c @@ -134,12 +134,12 @@ static bool s5m8763_volatile(struct device *dev, unsigned int reg) } } -static struct regmap_config sec_regmap_config = { +static const struct regmap_config sec_regmap_config = { .reg_bits = 8, .val_bits = 8, }; -static struct regmap_config s2mps11_regmap_config = { +static const struct regmap_config s2mps11_regmap_config = { .reg_bits = 8, .val_bits = 8, @@ -148,7 +148,7 @@ static struct regmap_config s2mps11_regmap_config = { .cache_type = REGCACHE_FLAT, }; -static struct regmap_config s5m8763_regmap_config = { +static const struct regmap_config s5m8763_regmap_config = { .reg_bits = 8, .val_bits = 8, @@ -157,7 +157,7 @@ static struct regmap_config s5m8763_regmap_config = { .cache_type = REGCACHE_FLAT, }; -static struct regmap_config s5m8767_regmap_config = { +static const struct regmap_config s5m8767_regmap_config = { .reg_bits = 8, .val_bits = 8, diff --git a/drivers/mfd/sec-irq.c b/drivers/mfd/sec-irq.c index b441b1be27cb..4de494f51d40 100644 --- a/drivers/mfd/sec-irq.c +++ b/drivers/mfd/sec-irq.c @@ -22,7 +22,7 @@ #include #include -static struct regmap_irq s2mps11_irqs[] = { +static const struct regmap_irq s2mps11_irqs[] = { [S2MPS11_IRQ_PWRONF] = { .reg_offset = 0, .mask = S2MPS11_IRQ_PWRONF_MASK, @@ -90,7 +90,7 @@ static struct regmap_irq s2mps11_irqs[] = { }; -static struct regmap_irq s5m8767_irqs[] = { +static const struct regmap_irq s5m8767_irqs[] = { [S5M8767_IRQ_PWRR] = { .reg_offset = 0, .mask = S5M8767_IRQ_PWRR_MASK, @@ -161,7 +161,7 @@ static struct regmap_irq s5m8767_irqs[] = { }, }; -static struct regmap_irq s5m8763_irqs[] = { +static const struct regmap_irq s5m8763_irqs[] = { [S5M8763_IRQ_DCINF] = { .reg_offset = 0, .mask = S5M8763_IRQ_DCINF_MASK, @@ -236,7 +236,7 @@ static struct regmap_irq s5m8763_irqs[] = { }, }; -static struct regmap_irq_chip s2mps11_irq_chip = { +static const struct regmap_irq_chip s2mps11_irq_chip = { .name = "s2mps11", .irqs = s2mps11_irqs, .num_irqs = ARRAY_SIZE(s2mps11_irqs), @@ -246,7 +246,7 @@ static struct regmap_irq_chip s2mps11_irq_chip = { .ack_base = S2MPS11_REG_INT1, }; -static struct regmap_irq_chip s5m8767_irq_chip = { +static const struct regmap_irq_chip s5m8767_irq_chip = { .name = "s5m8767", .irqs = s5m8767_irqs, .num_irqs = ARRAY_SIZE(s5m8767_irqs), @@ -256,7 +256,7 @@ static struct regmap_irq_chip s5m8767_irq_chip = { .ack_base = S5M8767_REG_INT1, }; -static struct regmap_irq_chip s5m8763_irq_chip = { +static const struct regmap_irq_chip s5m8763_irq_chip = { .name = "s5m8763", .irqs = s5m8763_irqs, .num_irqs = ARRAY_SIZE(s5m8763_irqs), -- cgit v1.2.2 From 2b6bfd4d4af86310903804b35183e3b50b469591 Mon Sep 17 00:00:00 2001 From: Ruslan Ruslichenko Date: Thu, 21 Nov 2013 14:13:28 +0200 Subject: mfd: twl-core: Clean up module by removing twl603x pdata handling Since currently nobody uses TWL603x platform data and all new users will supply it through device tree, handling of these data within twl-core will never be used, so remove it. Signed-off-by: Ruslan Ruslichenko Signed-off-by: Lee Jones --- drivers/mfd/twl-core.c | 198 ------------------------------------------------- 1 file changed, 198 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c index 29473c2c95ae..c3c28b985c01 100644 --- a/drivers/mfd/twl-core.c +++ b/drivers/mfd/twl-core.c @@ -701,62 +701,6 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base, usb3v1[0].dev_name = dev_name(child); } } - if (IS_ENABLED(CONFIG_TWL6030_USB) && pdata->usb && - twl_class_is_6030()) { - - static struct regulator_consumer_supply usb3v3; - int regulator; - - if (IS_ENABLED(CONFIG_REGULATOR_TWL4030)) { - /* this is a template that gets copied */ - struct regulator_init_data usb_fixed = { - .constraints.valid_modes_mask = - REGULATOR_MODE_NORMAL - | REGULATOR_MODE_STANDBY, - .constraints.valid_ops_mask = - REGULATOR_CHANGE_MODE - | REGULATOR_CHANGE_STATUS, - }; - - if (features & TWL6032_SUBCLASS) { - usb3v3.supply = "ldousb"; - regulator = TWL6032_REG_LDOUSB; - } else { - usb3v3.supply = "vusb"; - regulator = TWL6030_REG_VUSB; - } - child = add_regulator_linked(regulator, &usb_fixed, - &usb3v3, 1, - features); - if (IS_ERR(child)) - return PTR_ERR(child); - } - - pdata->usb->features = features; - - child = add_child(TWL_MODULE_USB, "twl6030_usb", - pdata->usb, sizeof(*pdata->usb), true, - /* irq1 = VBUS_PRES, irq0 = USB ID */ - irq_base + USBOTG_INTR_OFFSET, - irq_base + USB_PRES_INTR_OFFSET); - - if (IS_ERR(child)) - return PTR_ERR(child); - /* we need to connect regulators to this transceiver */ - if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && child) - usb3v3.dev_name = dev_name(child); - } else if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && - twl_class_is_6030()) { - if (features & TWL6032_SUBCLASS) - child = add_regulator(TWL6032_REG_LDOUSB, - pdata->ldousb, features); - else - child = add_regulator(TWL6030_REG_VUSB, - pdata->vusb, features); - - if (IS_ERR(child)) - return PTR_ERR(child); - } if (IS_ENABLED(CONFIG_TWL4030_WATCHDOG) && twl_class_is_4030()) { child = add_child(TWL_MODULE_PM_RECEIVER, "twl4030_wdt", NULL, @@ -870,148 +814,6 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base, return PTR_ERR(child); } - /* twl6030 regulators */ - if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && twl_class_is_6030() && - !(features & TWL6032_SUBCLASS)) { - child = add_regulator(TWL6030_REG_VDD1, pdata->vdd1, - features); - if (IS_ERR(child)) - return PTR_ERR(child); - - child = add_regulator(TWL6030_REG_VDD2, pdata->vdd2, - features); - if (IS_ERR(child)) - return PTR_ERR(child); - - child = add_regulator(TWL6030_REG_VDD3, pdata->vdd3, - features); - if (IS_ERR(child)) - return PTR_ERR(child); - - child = add_regulator(TWL6030_REG_V1V8, pdata->v1v8, - features); - if (IS_ERR(child)) - return PTR_ERR(child); - - child = add_regulator(TWL6030_REG_V2V1, pdata->v2v1, - features); - if (IS_ERR(child)) - return PTR_ERR(child); - - child = add_regulator(TWL6030_REG_VMMC, pdata->vmmc, - features); - if (IS_ERR(child)) - return PTR_ERR(child); - - child = add_regulator(TWL6030_REG_VPP, pdata->vpp, - features); - if (IS_ERR(child)) - return PTR_ERR(child); - - child = add_regulator(TWL6030_REG_VUSIM, pdata->vusim, - features); - if (IS_ERR(child)) - return PTR_ERR(child); - - child = add_regulator(TWL6030_REG_VCXIO, pdata->vcxio, - features); - if (IS_ERR(child)) - return PTR_ERR(child); - - child = add_regulator(TWL6030_REG_VDAC, pdata->vdac, - features); - if (IS_ERR(child)) - return PTR_ERR(child); - - child = add_regulator(TWL6030_REG_VAUX1_6030, pdata->vaux1, - features); - if (IS_ERR(child)) - return PTR_ERR(child); - - child = add_regulator(TWL6030_REG_VAUX2_6030, pdata->vaux2, - features); - if (IS_ERR(child)) - return PTR_ERR(child); - - child = add_regulator(TWL6030_REG_VAUX3_6030, pdata->vaux3, - features); - if (IS_ERR(child)) - return PTR_ERR(child); - - child = add_regulator(TWL6030_REG_CLK32KG, pdata->clk32kg, - features); - if (IS_ERR(child)) - return PTR_ERR(child); - } - - /* 6030 and 6025 share this regulator */ - if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && twl_class_is_6030()) { - child = add_regulator(TWL6030_REG_VANA, pdata->vana, - features); - if (IS_ERR(child)) - return PTR_ERR(child); - } - - /* twl6032 regulators */ - if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && twl_class_is_6030() && - (features & TWL6032_SUBCLASS)) { - child = add_regulator(TWL6032_REG_LDO5, pdata->ldo5, - features); - if (IS_ERR(child)) - return PTR_ERR(child); - - child = add_regulator(TWL6032_REG_LDO1, pdata->ldo1, - features); - if (IS_ERR(child)) - return PTR_ERR(child); - - child = add_regulator(TWL6032_REG_LDO7, pdata->ldo7, - features); - if (IS_ERR(child)) - return PTR_ERR(child); - - child = add_regulator(TWL6032_REG_LDO6, pdata->ldo6, - features); - if (IS_ERR(child)) - return PTR_ERR(child); - - child = add_regulator(TWL6032_REG_LDOLN, pdata->ldoln, - features); - if (IS_ERR(child)) - return PTR_ERR(child); - - child = add_regulator(TWL6032_REG_LDO2, pdata->ldo2, - features); - if (IS_ERR(child)) - return PTR_ERR(child); - - child = add_regulator(TWL6032_REG_LDO4, pdata->ldo4, - features); - if (IS_ERR(child)) - return PTR_ERR(child); - - child = add_regulator(TWL6032_REG_LDO3, pdata->ldo3, - features); - if (IS_ERR(child)) - return PTR_ERR(child); - - child = add_regulator(TWL6032_REG_SMPS3, pdata->smps3, - features); - if (IS_ERR(child)) - return PTR_ERR(child); - - child = add_regulator(TWL6032_REG_SMPS4, pdata->smps4, - features); - if (IS_ERR(child)) - return PTR_ERR(child); - - child = add_regulator(TWL6032_REG_VIO, pdata->vio6025, - features); - if (IS_ERR(child)) - return PTR_ERR(child); - - } - if (IS_ENABLED(CONFIG_CHARGER_TWL4030) && pdata->bci && !(features & (TPS_SUBSET | TWL5031))) { child = add_child(TWL_MODULE_MAIN_CHARGE, "twl4030_bci", -- cgit v1.2.2 From 80ec831e8069c3da06bd96db196422d736d364bc Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Fri, 15 Nov 2013 16:36:03 -0800 Subject: mfd: twl-core: Fix passing of platform data in the device tree case Since we still need to rely on a mix of device tree initialized drivers and legacy platform data initialize drivers, let's fix the passing of platform data to twl4030-gpio. As the twl4030 GPIO is initialized by twl-core.c, we need to register the auxdata for twl4030 GPIO in twl-core.c. Signed-off-by: Tony Lindgren Signed-off-by: Lee Jones --- drivers/mfd/twl-core.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c index c3c28b985c01..f0aa4cef9ad0 100644 --- a/drivers/mfd/twl-core.c +++ b/drivers/mfd/twl-core.c @@ -935,6 +935,11 @@ static int twl_remove(struct i2c_client *client) return 0; } +static struct of_dev_auxdata twl_auxdata_lookup[] = { + OF_DEV_AUXDATA("ti,twl4030-gpio", 0, "twl4030-gpio", NULL), + { /* sentinel */ }, +}; + /* NOTE: This driver only handles a single twl4030/tps659x0 chip */ static int twl_probe(struct i2c_client *client, const struct i2c_device_id *id) @@ -1073,10 +1078,14 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id) twl_i2c_write_u8(TWL4030_MODULE_INTBR, temp, REG_GPPUPDCTR1); } - if (node) - status = of_platform_populate(node, NULL, NULL, &client->dev); - else + if (node) { + if (pdata) + twl_auxdata_lookup[0].platform_data = pdata->gpio; + status = of_platform_populate(node, NULL, twl_auxdata_lookup, + &client->dev); + } else { status = add_children(pdata, irq_base, id->driver_data); + } fail: if (status < 0) -- cgit v1.2.2 From ac99a037bce3e6ae16d45ffb26eadbfc518fc143 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 3 Dec 2013 15:50:17 +0100 Subject: pinctrl: abx500: Delete non-devicetree probe path All instances of this device are now coming from device tree- enabled platforms probing without using platform data. Signed-off-by: Linus Walleij Signed-off-by: Lee Jones --- drivers/pinctrl/pinctrl-abx500.c | 36 +++++++++--------------------------- 1 file changed, 9 insertions(+), 27 deletions(-) (limited to 'drivers') diff --git a/drivers/pinctrl/pinctrl-abx500.c b/drivers/pinctrl/pinctrl-abx500.c index 5183e7bb8de3..62bd7cf79a3b 100644 --- a/drivers/pinctrl/pinctrl-abx500.c +++ b/drivers/pinctrl/pinctrl-abx500.c @@ -1218,21 +1218,15 @@ static const struct of_device_id abx500_gpio_match[] = { static int abx500_gpio_probe(struct platform_device *pdev) { - struct ab8500_platform_data *abx500_pdata = - dev_get_platdata(pdev->dev.parent); - struct abx500_gpio_platform_data *pdata = NULL; struct device_node *np = pdev->dev.of_node; + const struct of_device_id *match; struct abx500_pinctrl *pct; - const struct platform_device_id *platid = platform_get_device_id(pdev); unsigned int id = -1; int ret, err; int i; - if (abx500_pdata) - pdata = abx500_pdata->gpio; - - if (!(pdata || np)) { - dev_err(&pdev->dev, "gpio dt and platform data missing\n"); + if (!np) { + dev_err(&pdev->dev, "gpio dt node missing\n"); return -ENODEV; } @@ -1248,17 +1242,14 @@ static int abx500_gpio_probe(struct platform_device *pdev) pct->parent = dev_get_drvdata(pdev->dev.parent); pct->chip = abx500gpio_chip; pct->chip.dev = &pdev->dev; - pct->chip.base = (np) ? -1 : pdata->gpio_base; - - if (platid) - id = platid->driver_data; - else if (np) { - const struct of_device_id *match; + pct->chip.base = -1; /* Dynamic allocation */ - match = of_match_device(abx500_gpio_match, &pdev->dev); - if (match) - id = (unsigned long)match->data; + match = of_match_device(abx500_gpio_match, &pdev->dev); + if (!match) { + dev_err(&pdev->dev, "gpio dt not matching\n"); + return -ENODEV; } + id = (unsigned long)match->data; /* Poke in other ASIC variants here */ switch (id) { @@ -1349,14 +1340,6 @@ static int abx500_gpio_remove(struct platform_device *pdev) return 0; } -static const struct platform_device_id abx500_pinctrl_id[] = { - { "pinctrl-ab8500", PINCTRL_AB8500 }, - { "pinctrl-ab8540", PINCTRL_AB8540 }, - { "pinctrl-ab9540", PINCTRL_AB9540 }, - { "pinctrl-ab8505", PINCTRL_AB8505 }, - { }, -}; - static struct platform_driver abx500_gpio_driver = { .driver = { .name = "abx500-gpio", @@ -1365,7 +1348,6 @@ static struct platform_driver abx500_gpio_driver = { }, .probe = abx500_gpio_probe, .remove = abx500_gpio_remove, - .id_table = abx500_pinctrl_id, }; static int __init abx500_gpio_init(void) -- cgit v1.2.2 From 97b583f3b491f75712b0edc89c26a112f3847ab3 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 3 Dec 2013 15:50:49 +0100 Subject: mfd/pinctrl: Delete platform data header This deletes the special AB8500 GPIO platform data passing header and merges the few remaining contents down into the abx500 pinctrl driver which handles the abx500 GPIO device. Signed-off-by: Linus Walleij Signed-off-by: Lee Jones --- drivers/pinctrl/pinctrl-abx500.c | 1 - drivers/pinctrl/pinctrl-abx500.h | 12 ++++++++++++ 2 files changed, 12 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/pinctrl/pinctrl-abx500.c b/drivers/pinctrl/pinctrl-abx500.c index 62bd7cf79a3b..163da9c3ea0e 100644 --- a/drivers/pinctrl/pinctrl-abx500.c +++ b/drivers/pinctrl/pinctrl-abx500.c @@ -24,7 +24,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/pinctrl/pinctrl-abx500.h b/drivers/pinctrl/pinctrl-abx500.h index 82293806e842..2beef3bfe9ca 100644 --- a/drivers/pinctrl/pinctrl-abx500.h +++ b/drivers/pinctrl/pinctrl-abx500.h @@ -15,6 +15,18 @@ enum abx500_pin_func { ABX500_ALT_C, }; +enum abx500_gpio_pull_updown { + ABX500_GPIO_PULL_DOWN = 0x0, + ABX500_GPIO_PULL_NONE = 0x1, + ABX500_GPIO_PULL_UP = 0x3, +}; + +enum abx500_gpio_vinsel { + ABX500_GPIO_VINSEL_VBAT = 0x0, + ABX500_GPIO_VINSEL_VIN_1V8 = 0x1, + ABX500_GPIO_VINSEL_VDD_BIF = 0x2, +}; + /** * struct abx500_function - ABx500 pinctrl mux function * @name: The name of the function, exported to pinctrl core. -- cgit v1.2.2 From 36fcd06c4638acacee7135906cab60f11ea1ffac Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Tue, 3 Dec 2013 08:15:39 +0900 Subject: mfd: Remove DEFINE_PCI_DEVICE_TABLE macro Don't use DEFINE_PCI_DEVICE_TABLE macro, because this macro is not preferred. Signed-off-by: Jingoo Han Signed-off-by: Lee Jones --- drivers/mfd/cs5535-mfd.c | 2 +- drivers/mfd/janz-cmodio.c | 2 +- drivers/mfd/lpc_ich.c | 2 +- drivers/mfd/lpc_sch.c | 2 +- drivers/mfd/rdc321x-southbridge.c | 2 +- drivers/mfd/rtsx_pcr.c | 2 +- drivers/mfd/sm501.c | 2 +- drivers/mfd/sta2x11-mfd.c | 2 +- drivers/mfd/timberdale.c | 2 +- drivers/mfd/vx855.c | 2 +- 10 files changed, 10 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/cs5535-mfd.c b/drivers/mfd/cs5535-mfd.c index 2e4752a9220a..17c13012686a 100644 --- a/drivers/mfd/cs5535-mfd.c +++ b/drivers/mfd/cs5535-mfd.c @@ -172,7 +172,7 @@ static void cs5535_mfd_remove(struct pci_dev *pdev) pci_disable_device(pdev); } -static DEFINE_PCI_DEVICE_TABLE(cs5535_mfd_pci_tbl) = { +static const struct pci_device_id cs5535_mfd_pci_tbl[] = { { PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_CS5535_ISA) }, { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_ISA) }, { 0, } diff --git a/drivers/mfd/janz-cmodio.c b/drivers/mfd/janz-cmodio.c index fcbb2e9dfd37..81b7d88af313 100644 --- a/drivers/mfd/janz-cmodio.c +++ b/drivers/mfd/janz-cmodio.c @@ -265,7 +265,7 @@ static void cmodio_pci_remove(struct pci_dev *dev) #define PCI_VENDOR_ID_JANZ 0x13c3 /* The list of devices that this module will support */ -static DEFINE_PCI_DEVICE_TABLE(cmodio_pci_ids) = { +static const struct pci_device_id cmodio_pci_ids[] = { { PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9030, PCI_VENDOR_ID_JANZ, 0x0101 }, { PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050, PCI_VENDOR_ID_JANZ, 0x0100 }, { 0, } diff --git a/drivers/mfd/lpc_ich.c b/drivers/mfd/lpc_ich.c index 37edf9e989b0..be93fa261ded 100644 --- a/drivers/mfd/lpc_ich.c +++ b/drivers/mfd/lpc_ich.c @@ -517,7 +517,7 @@ static struct lpc_ich_info lpc_chipset_info[] = { * pci_driver, because the I/O Controller Hub has also other * functions that probably will be registered by other drivers. */ -static DEFINE_PCI_DEVICE_TABLE(lpc_ich_ids) = { +static const struct pci_device_id lpc_ich_ids[] = { { PCI_VDEVICE(INTEL, 0x2410), LPC_ICH}, { PCI_VDEVICE(INTEL, 0x2420), LPC_ICH0}, { PCI_VDEVICE(INTEL, 0x2440), LPC_ICH2}, diff --git a/drivers/mfd/lpc_sch.c b/drivers/mfd/lpc_sch.c index fbfbf0b7f97a..3bb05c03c68d 100644 --- a/drivers/mfd/lpc_sch.c +++ b/drivers/mfd/lpc_sch.c @@ -76,7 +76,7 @@ static struct mfd_cell wdt_sch_cell = { .ignore_resource_conflicts = true, }; -static DEFINE_PCI_DEVICE_TABLE(lpc_sch_ids) = { +static const struct pci_device_id lpc_sch_ids[] = { { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SCH_LPC) }, { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ITC_LPC) }, { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CENTERTON_ILB) }, diff --git a/drivers/mfd/rdc321x-southbridge.c b/drivers/mfd/rdc321x-southbridge.c index aab63ee043e3..d346146249a2 100644 --- a/drivers/mfd/rdc321x-southbridge.c +++ b/drivers/mfd/rdc321x-southbridge.c @@ -96,7 +96,7 @@ static void rdc321x_sb_remove(struct pci_dev *pdev) mfd_remove_devices(&pdev->dev); } -static DEFINE_PCI_DEVICE_TABLE(rdc321x_sb_table) = { +static const struct pci_device_id rdc321x_sb_table[] = { { PCI_DEVICE(PCI_VENDOR_ID_RDC, PCI_DEVICE_ID_RDC_R6030) }, {} }; diff --git a/drivers/mfd/rtsx_pcr.c b/drivers/mfd/rtsx_pcr.c index 11e20afbdcac..8ab8f1d595ea 100644 --- a/drivers/mfd/rtsx_pcr.c +++ b/drivers/mfd/rtsx_pcr.c @@ -50,7 +50,7 @@ static struct mfd_cell rtsx_pcr_cells[] = { }, }; -static DEFINE_PCI_DEVICE_TABLE(rtsx_pci_ids) = { +static const struct pci_device_id rtsx_pci_ids[] = { { PCI_DEVICE(0x10EC, 0x5209), PCI_CLASS_OTHERS << 16, 0xFF0000 }, { PCI_DEVICE(0x10EC, 0x5229), PCI_CLASS_OTHERS << 16, 0xFF0000 }, { PCI_DEVICE(0x10EC, 0x5289), PCI_CLASS_OTHERS << 16, 0xFF0000 }, diff --git a/drivers/mfd/sm501.c b/drivers/mfd/sm501.c index c2c8c91c6c7b..e7dc441a8f8a 100644 --- a/drivers/mfd/sm501.c +++ b/drivers/mfd/sm501.c @@ -1710,7 +1710,7 @@ static int sm501_plat_remove(struct platform_device *dev) return 0; } -static DEFINE_PCI_DEVICE_TABLE(sm501_pci_tbl) = { +static const struct pci_device_id sm501_pci_tbl[] = { { 0x126f, 0x0501, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, { 0, }, }; diff --git a/drivers/mfd/sta2x11-mfd.c b/drivers/mfd/sta2x11-mfd.c index 65c6fa671acb..53ab686c984f 100644 --- a/drivers/mfd/sta2x11-mfd.c +++ b/drivers/mfd/sta2x11-mfd.c @@ -642,7 +642,7 @@ err_disable: return err; } -static DEFINE_PCI_DEVICE_TABLE(sta2x11_mfd_tbl) = { +static const struct pci_device_id sta2x11_mfd_tbl[] = { {PCI_DEVICE(PCI_VENDOR_ID_STMICRO, PCI_DEVICE_ID_STMICRO_GPIO)}, {PCI_DEVICE(PCI_VENDOR_ID_STMICRO, PCI_DEVICE_ID_STMICRO_VIC)}, {0,}, diff --git a/drivers/mfd/timberdale.c b/drivers/mfd/timberdale.c index c6668ac70af3..2bc5cfb85204 100644 --- a/drivers/mfd/timberdale.c +++ b/drivers/mfd/timberdale.c @@ -851,7 +851,7 @@ static void timb_remove(struct pci_dev *dev) kfree(priv); } -static DEFINE_PCI_DEVICE_TABLE(timberdale_pci_tbl) = { +static const struct pci_device_id timberdale_pci_tbl[] = { { PCI_DEVICE(PCI_VENDOR_ID_TIMB, PCI_DEVICE_ID_TIMB) }, { 0 } }; diff --git a/drivers/mfd/vx855.c b/drivers/mfd/vx855.c index 5cd5661158bc..84f01da4875e 100644 --- a/drivers/mfd/vx855.c +++ b/drivers/mfd/vx855.c @@ -118,7 +118,7 @@ static void vx855_remove(struct pci_dev *pdev) pci_disable_device(pdev); } -static DEFINE_PCI_DEVICE_TABLE(vx855_pci_tbl) = { +static const struct pci_device_id vx855_pci_tbl[] = { { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VX855) }, { 0, } }; -- cgit v1.2.2 From 4db59238906becd0047aba8293b25591dd0d018a Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Tue, 3 Dec 2013 17:26:33 +0800 Subject: mfd: rtsx: Prevent 'used uninitialised' warnings drivers/mfd/rtl8411.c: In function 'rtl8411_fetch_vendor_settings': drivers/mfd/rtl8411.c:58:7: warning: 'reg1' is used uninitialized in this function [-Wuninitialized] drivers/mfd/rtl8411.c: In function 'rtl8411b_fetch_vendor_settings': drivers/mfd/rtl8411.c:79:7: warning: 'reg' is used uninitialized in this function [-Wuninitialized] drivers/mfd/rtl8411.c: In function 'rtl8411_fetch_vendor_settings': drivers/mfd/rtl8411.c:69:26: warning: 'reg3' may be used uninitialized in this function [-Wuninitialized] Tested-by: Micky Ching Signed-off-by: Lee Jones --- drivers/mfd/rtl8411.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/rtl8411.c b/drivers/mfd/rtl8411.c index 52801351864d..1ee867591ee4 100644 --- a/drivers/mfd/rtl8411.c +++ b/drivers/mfd/rtl8411.c @@ -49,8 +49,8 @@ static int rtl8411b_is_qfn48(struct rtsx_pcr *pcr) static void rtl8411_fetch_vendor_settings(struct rtsx_pcr *pcr) { - u32 reg1; - u8 reg3; + u32 reg1 = 0; + u8 reg3 = 0; rtsx_pci_read_config_dword(pcr, PCR_SETTING_REG1, ®1); dev_dbg(&(pcr->pci->dev), "Cfg 0x%x: 0x%x\n", PCR_SETTING_REG1, reg1); @@ -71,7 +71,7 @@ static void rtl8411_fetch_vendor_settings(struct rtsx_pcr *pcr) static void rtl8411b_fetch_vendor_settings(struct rtsx_pcr *pcr) { - u32 reg; + u32 reg = 0; rtsx_pci_read_config_dword(pcr, PCR_SETTING_REG1, ®); dev_dbg(&(pcr->pci->dev), "Cfg 0x%x: 0x%x\n", PCR_SETTING_REG1, reg); -- cgit v1.2.2 From ed83d301eac2ca7c1315d0e283e1c14c07a53e16 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 3 Dec 2013 15:11:54 +0100 Subject: mfd: ab8500: Use irqdomain to map interrupts All subdrivers use the irqdomain to demux AB8500 IRQs but here in the hierarchical path we find a leftover instance using the hard-coded IRQ base. Convert it to use irqdomain with a oneliner. Signed-off-by: Linus Walleij Signed-off-by: Lee Jones --- drivers/mfd/ab8500-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c index 6788064ed899..aaff683cd37d 100644 --- a/drivers/mfd/ab8500-core.c +++ b/drivers/mfd/ab8500-core.c @@ -491,7 +491,7 @@ static int ab8500_handle_hierarchical_line(struct ab8500 *ab8500, if (line == AB8540_INT_GPIO43F || line == AB8540_INT_GPIO44F) line += 1; - handle_nested_irq(ab8500->irq_base + line); + handle_nested_irq(irq_create_mapping(ab8500->domain, line)); } return 0; -- cgit v1.2.2 From b9736a16a41758caa684d85d4f1398bbd9f594d7 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Fri, 8 Nov 2013 18:51:25 +0000 Subject: mfd: wm831x: Use PM ops for shutdown This helps move us towards removing the bus custom operations. Acked-by: Charles Keepax Signed-off-by: Mark Brown Signed-off-by: Lee Jones --- drivers/mfd/wm831x-i2c.c | 8 +++++--- drivers/mfd/wm831x-spi.c | 8 +++++--- 2 files changed, 10 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/wm831x-i2c.c b/drivers/mfd/wm831x-i2c.c index 2b29caebc9cf..a4cbefe5430f 100644 --- a/drivers/mfd/wm831x-i2c.c +++ b/drivers/mfd/wm831x-i2c.c @@ -64,11 +64,13 @@ static int wm831x_i2c_suspend(struct device *dev) return wm831x_device_suspend(wm831x); } -static void wm831x_i2c_shutdown(struct i2c_client *i2c) +static int wm831x_i2c_poweroff(struct device *dev) { - struct wm831x *wm831x = i2c_get_clientdata(i2c); + struct wm831x *wm831x = dev_get_drvdata(dev); wm831x_device_shutdown(wm831x); + + return 0; } static const struct i2c_device_id wm831x_i2c_id[] = { @@ -85,6 +87,7 @@ MODULE_DEVICE_TABLE(i2c, wm831x_i2c_id); static const struct dev_pm_ops wm831x_pm_ops = { .suspend = wm831x_i2c_suspend, + .poweroff = wm831x_i2c_poweroff, }; static struct i2c_driver wm831x_i2c_driver = { @@ -95,7 +98,6 @@ static struct i2c_driver wm831x_i2c_driver = { }, .probe = wm831x_i2c_probe, .remove = wm831x_i2c_remove, - .shutdown = wm831x_i2c_shutdown, .id_table = wm831x_i2c_id, }; diff --git a/drivers/mfd/wm831x-spi.c b/drivers/mfd/wm831x-spi.c index 07de3cc5a0d9..b8a5e3b34ec7 100644 --- a/drivers/mfd/wm831x-spi.c +++ b/drivers/mfd/wm831x-spi.c @@ -66,16 +66,19 @@ static int wm831x_spi_suspend(struct device *dev) return wm831x_device_suspend(wm831x); } -static void wm831x_spi_shutdown(struct spi_device *spi) +static int wm831x_spi_poweroff(struct device *dev) { - struct wm831x *wm831x = spi_get_drvdata(spi); + struct wm831x *wm831x = dev_get_drvdata(dev); wm831x_device_shutdown(wm831x); + + return 0; } static const struct dev_pm_ops wm831x_spi_pm = { .freeze = wm831x_spi_suspend, .suspend = wm831x_spi_suspend, + .poweroff = wm831x_spi_poweroff, }; static const struct spi_device_id wm831x_spi_ids[] = { @@ -99,7 +102,6 @@ static struct spi_driver wm831x_spi_driver = { .id_table = wm831x_spi_ids, .probe = wm831x_spi_probe, .remove = wm831x_spi_remove, - .shutdown = wm831x_spi_shutdown, }; static int __init wm831x_spi_init(void) -- cgit v1.2.2 From aab5dc680308098bfee0ce8be64d9aba0877fa26 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Wed, 4 Dec 2013 17:07:12 +0300 Subject: mfd: max14577: Cleanup an error message "pdata" is a NULL not an ERR_PTR so there is no use printing it. Signed-off-by: Dan Carpenter Signed-off-by: Lee Jones --- drivers/mfd/max14577.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/max14577.c b/drivers/mfd/max14577.c index 1337c4527028..a5e1c370c609 100644 --- a/drivers/mfd/max14577.c +++ b/drivers/mfd/max14577.c @@ -96,8 +96,7 @@ static int max14577_i2c_probe(struct i2c_client *i2c, } if (!pdata) { - dev_err(&i2c->dev, "No platform data found: %ld\n", - PTR_ERR(pdata)); + dev_err(&i2c->dev, "No platform data found.\n"); return -EINVAL; } -- cgit v1.2.2 From 0cc59b9d98d554168915b3765a14e8b4ad75918c Mon Sep 17 00:00:00 2001 From: Milo Kim Date: Fri, 6 Dec 2013 11:18:42 +0900 Subject: gpio: add LP3943 I2C GPIO expander driver This is one of LP3943 MFD driver. LP3943 is configurable as a GPIO expander, up to 16 GPIOs. * Application note: how to configure LP3943 as a GPIO expander http://www.ti.com/lit/an/snva287a/snva287a.pdf * Supported GPIO controller operations request, free, direction_input, direction_output, get and set * GPIO direction register not supported LP3943 doesn't have the GPIO direction register. It only provides input and output status registers. So, private data for the direction should be handled manually. This variable is updated whenever the direction is changed and used in 'get' operation. * Pin assignment A driver data, 'pin_used' is checked when a GPIO is requested. If the GPIO is already assigned, then returns as failure. If the GPIO is available, 'pin_used' is set. When the GPIO is not used anymore, then it is cleared. It is defined as unsigned long type for atomic bit operation APIs, but only LSB 16bits are used because LP3943 has 16 outputs. Signed-off-by: Milo Kim Reviewed-by: Linus Walleij Signed-off-by: Lee Jones --- drivers/gpio/Kconfig | 8 ++ drivers/gpio/Makefile | 1 + drivers/gpio/gpio-lp3943.c | 242 +++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 251 insertions(+) create mode 100644 drivers/gpio/gpio-lp3943.c (limited to 'drivers') diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index 0f0444475bf0..7ef68e65918f 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -381,6 +381,14 @@ config GPIO_ARIZONA help Support for GPIOs on Wolfson Arizona class devices. +config GPIO_LP3943 + tristate "TI/National Semiconductor LP3943 GPIO expander" + depends on MFD_LP3943 + help + GPIO driver for LP3943 MFD. + LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. + Open drain outputs are required for this usage. + config GPIO_MAX7300 tristate "Maxim MAX7300 GPIO expander" depends on I2C diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile index 7971e36b8b12..95927b61c201 100644 --- a/drivers/gpio/Makefile +++ b/drivers/gpio/Makefile @@ -35,6 +35,7 @@ obj-$(CONFIG_GPIO_JANZ_TTL) += gpio-janz-ttl.o obj-$(CONFIG_GPIO_KEMPLD) += gpio-kempld.o obj-$(CONFIG_ARCH_KS8695) += gpio-ks8695.o obj-$(CONFIG_GPIO_INTEL_MID) += gpio-intel-mid.o +obj-$(CONFIG_GPIO_LP3943) += gpio-lp3943.o obj-$(CONFIG_ARCH_LPC32XX) += gpio-lpc32xx.o obj-$(CONFIG_GPIO_LYNXPOINT) += gpio-lynxpoint.o obj-$(CONFIG_GPIO_MAX730X) += gpio-max730x.o diff --git a/drivers/gpio/gpio-lp3943.c b/drivers/gpio/gpio-lp3943.c new file mode 100644 index 000000000000..7b8db88ebb7b --- /dev/null +++ b/drivers/gpio/gpio-lp3943.c @@ -0,0 +1,242 @@ +/* + * TI/National Semiconductor LP3943 GPIO driver + * + * Copyright 2013 Texas Instruments + * + * Author: Milo Kim + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +enum lp3943_gpios { + LP3943_GPIO1, + LP3943_GPIO2, + LP3943_GPIO3, + LP3943_GPIO4, + LP3943_GPIO5, + LP3943_GPIO6, + LP3943_GPIO7, + LP3943_GPIO8, + LP3943_GPIO9, + LP3943_GPIO10, + LP3943_GPIO11, + LP3943_GPIO12, + LP3943_GPIO13, + LP3943_GPIO14, + LP3943_GPIO15, + LP3943_GPIO16, + LP3943_MAX_GPIO, +}; + +struct lp3943_gpio { + struct gpio_chip chip; + struct lp3943 *lp3943; + u16 input_mask; /* 1 = GPIO is input direction, 0 = output */ +}; + +static inline struct lp3943_gpio *to_lp3943_gpio(struct gpio_chip *_chip) +{ + return container_of(_chip, struct lp3943_gpio, chip); +} + +static int lp3943_gpio_request(struct gpio_chip *chip, unsigned offset) +{ + struct lp3943_gpio *lp3943_gpio = to_lp3943_gpio(chip); + struct lp3943 *lp3943 = lp3943_gpio->lp3943; + + /* Return an error if the pin is already assigned */ + if (test_and_set_bit(offset, &lp3943->pin_used)) + return -EBUSY; + + return 0; +} + +static void lp3943_gpio_free(struct gpio_chip *chip, unsigned offset) +{ + struct lp3943_gpio *lp3943_gpio = to_lp3943_gpio(chip); + struct lp3943 *lp3943 = lp3943_gpio->lp3943; + + clear_bit(offset, &lp3943->pin_used); +} + +static int lp3943_gpio_set_mode(struct lp3943_gpio *lp3943_gpio, u8 offset, + u8 val) +{ + struct lp3943 *lp3943 = lp3943_gpio->lp3943; + const struct lp3943_reg_cfg *mux = lp3943->mux_cfg; + + return lp3943_update_bits(lp3943, mux[offset].reg, mux[offset].mask, + val << mux[offset].shift); +} + +static int lp3943_gpio_direction_input(struct gpio_chip *chip, unsigned offset) +{ + struct lp3943_gpio *lp3943_gpio = to_lp3943_gpio(chip); + + lp3943_gpio->input_mask |= BIT(offset); + + return lp3943_gpio_set_mode(lp3943_gpio, offset, LP3943_GPIO_IN); +} + +static int lp3943_get_gpio_in_status(struct lp3943_gpio *lp3943_gpio, + struct gpio_chip *chip, unsigned offset) +{ + u8 addr, read; + int err; + + switch (offset) { + case LP3943_GPIO1 ... LP3943_GPIO8: + addr = LP3943_REG_GPIO_A; + break; + case LP3943_GPIO9 ... LP3943_GPIO16: + addr = LP3943_REG_GPIO_B; + offset = offset - 8; + break; + default: + return -EINVAL; + } + + err = lp3943_read_byte(lp3943_gpio->lp3943, addr, &read); + if (err) + return err; + + return !!(read & BIT(offset)); +} + +static int lp3943_get_gpio_out_status(struct lp3943_gpio *lp3943_gpio, + struct gpio_chip *chip, unsigned offset) +{ + struct lp3943 *lp3943 = lp3943_gpio->lp3943; + const struct lp3943_reg_cfg *mux = lp3943->mux_cfg; + u8 read; + int err; + + err = lp3943_read_byte(lp3943, mux[offset].reg, &read); + if (err) + return err; + + read = (read & mux[offset].mask) >> mux[offset].shift; + + if (read == LP3943_GPIO_OUT_HIGH) + return 1; + else if (read == LP3943_GPIO_OUT_LOW) + return 0; + else + return -EINVAL; +} + +static int lp3943_gpio_get(struct gpio_chip *chip, unsigned offset) +{ + struct lp3943_gpio *lp3943_gpio = to_lp3943_gpio(chip); + + /* + * Limitation: + * LP3943 doesn't have the GPIO direction register. It provides + * only input and output status registers. + * So, direction info is required to handle the 'get' operation. + * This variable is updated whenever the direction is changed and + * it is used here. + */ + + if (lp3943_gpio->input_mask & BIT(offset)) + return lp3943_get_gpio_in_status(lp3943_gpio, chip, offset); + else + return lp3943_get_gpio_out_status(lp3943_gpio, chip, offset); +} + +static void lp3943_gpio_set(struct gpio_chip *chip, unsigned offset, int value) +{ + struct lp3943_gpio *lp3943_gpio = to_lp3943_gpio(chip); + u8 data; + + if (value) + data = LP3943_GPIO_OUT_HIGH; + else + data = LP3943_GPIO_OUT_LOW; + + lp3943_gpio_set_mode(lp3943_gpio, offset, data); +} + +static int lp3943_gpio_direction_output(struct gpio_chip *chip, unsigned offset, + int value) +{ + struct lp3943_gpio *lp3943_gpio = to_lp3943_gpio(chip); + + lp3943_gpio_set(chip, offset, value); + lp3943_gpio->input_mask &= ~BIT(offset); + + return 0; +} + +static const struct gpio_chip lp3943_gpio_chip = { + .label = "lp3943", + .owner = THIS_MODULE, + .request = lp3943_gpio_request, + .free = lp3943_gpio_free, + .direction_input = lp3943_gpio_direction_input, + .get = lp3943_gpio_get, + .direction_output = lp3943_gpio_direction_output, + .set = lp3943_gpio_set, + .base = -1, + .ngpio = LP3943_MAX_GPIO, + .can_sleep = 1, +}; + +static int lp3943_gpio_probe(struct platform_device *pdev) +{ + struct lp3943 *lp3943 = dev_get_drvdata(pdev->dev.parent); + struct lp3943_gpio *lp3943_gpio; + + lp3943_gpio = devm_kzalloc(&pdev->dev, sizeof(*lp3943_gpio), + GFP_KERNEL); + if (!lp3943_gpio) + return -ENOMEM; + + lp3943_gpio->lp3943 = lp3943; + lp3943_gpio->chip = lp3943_gpio_chip; + lp3943_gpio->chip.dev = &pdev->dev; + + platform_set_drvdata(pdev, lp3943_gpio); + + return gpiochip_add(&lp3943_gpio->chip); +} + +static int lp3943_gpio_remove(struct platform_device *pdev) +{ + struct lp3943_gpio *lp3943_gpio = platform_get_drvdata(pdev); + + return gpiochip_remove(&lp3943_gpio->chip); +} + +static const struct of_device_id lp3943_gpio_of_match[] = { + { .compatible = "ti,lp3943-gpio", }, + { } +}; +MODULE_DEVICE_TABLE(of, lp3943_gpio_of_match); + +static struct platform_driver lp3943_gpio_driver = { + .probe = lp3943_gpio_probe, + .remove = lp3943_gpio_remove, + .driver = { + .name = "lp3943-gpio", + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(lp3943_gpio_of_match), + }, +}; +module_platform_driver(lp3943_gpio_driver); + +MODULE_DESCRIPTION("LP3943 GPIO driver"); +MODULE_ALIAS("platform:lp3943-gpio"); +MODULE_AUTHOR("Milo Kim"); +MODULE_LICENSE("GPL"); -- cgit v1.2.2 From 470eca47bded10f2e1a425b44d6f2b1418271a9f Mon Sep 17 00:00:00 2001 From: Milo Kim Date: Fri, 6 Dec 2013 11:18:41 +0900 Subject: mfd: Add LP3943 MFD driver LP3943 has 16 output pins which can be used as GPIO expander and PWM generator. * Regmap I2C interface for R/W LP3943 registers * Atomic operations for output pin assignment The driver should check whether requested pin is available or not. If the pin is already used, pin request returns as a failure. A driver data, 'pin_used' is checked when gpio_request() and pwm_request() are called. If the pin is available, then pin_used is set. And it is cleared when gpio_free() and pwm_free(). * Device tree support Compatible strings for GPIO and PWM driver. LP3943 platform data is PWM related, so parsing the device tree is implemented in the PWM driver. Signed-off-by: Milo Kim Signed-off-by: Lee Jones --- drivers/mfd/Kconfig | 11 ++++ drivers/mfd/Makefile | 1 + drivers/mfd/lp3943.c | 167 +++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 179 insertions(+) create mode 100644 drivers/mfd/lp3943.c (limited to 'drivers') diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index e54a6fd2a5bd..1c2a389e6dc2 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -738,6 +738,17 @@ config MFD_DM355EVM_MSP boards. MSP430 firmware manages resets and power sequencing, inputs from buttons and the IR remote, LEDs, an RTC, and more. +config MFD_LP3943 + tristate "TI/National Semiconductor LP3943 MFD Driver" + depends on I2C + select MFD_CORE + select REGMAP_I2C + help + Support for the TI/National Semiconductor LP3943. + This driver consists of GPIO and PWM drivers. + With these functionalities, it can be used for LED string control or + general usage such like a GPIO controller and a PWM controller. + config MFD_LP8788 bool "TI LP8788 Power Management Unit Driver" depends on I2C=y diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 2e18b05017d9..5aea5ef0a62f 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -102,6 +102,7 @@ obj-$(CONFIG_PMIC_DA9052) += da9052-core.o obj-$(CONFIG_MFD_DA9052_SPI) += da9052-spi.o obj-$(CONFIG_MFD_DA9052_I2C) += da9052-i2c.o +obj-$(CONFIG_MFD_LP3943) += lp3943.o obj-$(CONFIG_MFD_LP8788) += lp8788.o lp8788-irq.o da9055-objs := da9055-core.o da9055-i2c.o diff --git a/drivers/mfd/lp3943.c b/drivers/mfd/lp3943.c new file mode 100644 index 000000000000..e32226836fb4 --- /dev/null +++ b/drivers/mfd/lp3943.c @@ -0,0 +1,167 @@ +/* + * TI/National Semiconductor LP3943 MFD Core Driver + * + * Copyright 2013 Texas Instruments + * + * Author: Milo Kim + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Driver structure: + * LP3943 is an integrated device capable of driving 16 output channels. + * It can be used for a GPIO expander and PWM generators. + * + * LED control General usage for a device + * ___________ ____________________________ + * + * LP3943 MFD ---- GPIO expander leds-gpio eg) HW enable pin + * | + * --- PWM generator leds-pwm eg) PWM input + * + * Internal two PWM channels are used for LED dimming effect. + * And each output pin can be used as a GPIO as well. + * The LED functionality can work with GPIOs or PWMs. + * LEDs can be controlled with legacy leds-gpio(static brightness) or + * leds-pwm drivers(dynamic brightness control). + * Alternatively, it can be used for generic GPIO and PWM controller. + * For example, a GPIO is HW enable pin of a device. + * A PWM is input pin of a backlight device. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#define LP3943_MAX_REGISTERS 0x09 + +/* Register configuration for pin MUX */ +static const struct lp3943_reg_cfg lp3943_mux_cfg[] = { + /* address, mask, shift */ + { LP3943_REG_MUX0, 0x03, 0 }, + { LP3943_REG_MUX0, 0x0C, 2 }, + { LP3943_REG_MUX0, 0x30, 4 }, + { LP3943_REG_MUX0, 0xC0, 6 }, + { LP3943_REG_MUX1, 0x03, 0 }, + { LP3943_REG_MUX1, 0x0C, 2 }, + { LP3943_REG_MUX1, 0x30, 4 }, + { LP3943_REG_MUX1, 0xC0, 6 }, + { LP3943_REG_MUX2, 0x03, 0 }, + { LP3943_REG_MUX2, 0x0C, 2 }, + { LP3943_REG_MUX2, 0x30, 4 }, + { LP3943_REG_MUX2, 0xC0, 6 }, + { LP3943_REG_MUX3, 0x03, 0 }, + { LP3943_REG_MUX3, 0x0C, 2 }, + { LP3943_REG_MUX3, 0x30, 4 }, + { LP3943_REG_MUX3, 0xC0, 6 }, +}; + +static struct mfd_cell lp3943_devs[] = { + { + .name = "lp3943-pwm", + .of_compatible = "ti,lp3943-pwm", + }, + { + .name = "lp3943-gpio", + .of_compatible = "ti,lp3943-gpio", + }, +}; + +int lp3943_read_byte(struct lp3943 *lp3943, u8 reg, u8 *read) +{ + int ret; + unsigned int val; + + ret = regmap_read(lp3943->regmap, reg, &val); + if (ret < 0) + return ret; + + *read = (u8)val; + return 0; +} +EXPORT_SYMBOL_GPL(lp3943_read_byte); + +int lp3943_write_byte(struct lp3943 *lp3943, u8 reg, u8 data) +{ + return regmap_write(lp3943->regmap, reg, data); +} +EXPORT_SYMBOL_GPL(lp3943_write_byte); + +int lp3943_update_bits(struct lp3943 *lp3943, u8 reg, u8 mask, u8 data) +{ + return regmap_update_bits(lp3943->regmap, reg, mask, data); +} +EXPORT_SYMBOL_GPL(lp3943_update_bits); + +static const struct regmap_config lp3943_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = LP3943_MAX_REGISTERS, +}; + +static int lp3943_probe(struct i2c_client *cl, const struct i2c_device_id *id) +{ + struct lp3943 *lp3943; + struct device *dev = &cl->dev; + + lp3943 = devm_kzalloc(dev, sizeof(*lp3943), GFP_KERNEL); + if (!lp3943) + return -ENOMEM; + + lp3943->regmap = devm_regmap_init_i2c(cl, &lp3943_regmap_config); + if (IS_ERR(lp3943->regmap)) + return PTR_ERR(lp3943->regmap); + + lp3943->pdata = dev_get_platdata(dev); + lp3943->dev = dev; + lp3943->mux_cfg = lp3943_mux_cfg; + i2c_set_clientdata(cl, lp3943); + + return mfd_add_devices(dev, -1, lp3943_devs, ARRAY_SIZE(lp3943_devs), + NULL, 0, NULL); +} + +static int lp3943_remove(struct i2c_client *cl) +{ + struct lp3943 *lp3943 = i2c_get_clientdata(cl); + + mfd_remove_devices(lp3943->dev); + return 0; +} + +static const struct i2c_device_id lp3943_ids[] = { + { "lp3943", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, lp3943_ids); + +#ifdef CONFIG_OF +static const struct of_device_id lp3943_of_match[] = { + { .compatible = "ti,lp3943", }, + { } +}; +MODULE_DEVICE_TABLE(of, lp3943_of_match); +#endif + +static struct i2c_driver lp3943_driver = { + .probe = lp3943_probe, + .remove = lp3943_remove, + .driver = { + .name = "lp3943", + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(lp3943_of_match), + }, + .id_table = lp3943_ids, +}; + +module_i2c_driver(lp3943_driver); + +MODULE_DESCRIPTION("LP3943 MFD Core Driver"); +MODULE_AUTHOR("Milo Kim"); +MODULE_LICENSE("GPL"); -- cgit v1.2.2 From af66b3c0934e350059646651958306565313e145 Mon Sep 17 00:00:00 2001 From: Milo Kim Date: Fri, 6 Dec 2013 11:18:43 +0900 Subject: pwm: Add LP3943 PWM driver This is the other of the LP3943 MFD driver. LP3943 can be used as a PWM generator, up to 2 channels. * Two PWM generators supported * Supported PWM operations request, free, config, enable and disable * Pin assignment A driver data, 'pin_used' is checked when a PWM is requested. If the output pin is already assigned, then returns as failure. If the pin is available, 'pin_used' is set. When the PWM is not used anymore, then it is cleared. It is defined as unsigned long type for atomic bit operation APIs, but only LSB 16bits are used because LP3943 has 16 outputs. Signed-off-by: Milo Kim Acked-by: Thierry Reding Signed-off-by: Lee Jones --- drivers/pwm/Kconfig | 10 ++ drivers/pwm/Makefile | 1 + drivers/pwm/pwm-lp3943.c | 314 +++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 325 insertions(+) create mode 100644 drivers/pwm/pwm-lp3943.c (limited to 'drivers') diff --git a/drivers/pwm/Kconfig b/drivers/pwm/Kconfig index eece329d7872..7acab93d5a47 100644 --- a/drivers/pwm/Kconfig +++ b/drivers/pwm/Kconfig @@ -90,6 +90,16 @@ config PWM_JZ4740 To compile this driver as a module, choose M here: the module will be called pwm-jz4740. +config PWM_LP3943 + tristate "TI/National Semiconductor LP3943 PWM support" + depends on MFD_LP3943 + help + Generic PWM framework driver for LP3943 which supports two PWM + channels. + + To compile this driver as a module, choose M here: the module + will be called pwm-lp3943. + config PWM_LPC32XX tristate "LPC32XX PWM support" depends on ARCH_LPC32XX diff --git a/drivers/pwm/Makefile b/drivers/pwm/Makefile index 8b754e4dba4a..4abf337dcd02 100644 --- a/drivers/pwm/Makefile +++ b/drivers/pwm/Makefile @@ -6,6 +6,7 @@ obj-$(CONFIG_PWM_BFIN) += pwm-bfin.o obj-$(CONFIG_PWM_EP93XX) += pwm-ep93xx.o obj-$(CONFIG_PWM_IMX) += pwm-imx.o obj-$(CONFIG_PWM_JZ4740) += pwm-jz4740.o +obj-$(CONFIG_PWM_LP3943) += pwm-lp3943.o obj-$(CONFIG_PWM_LPC32XX) += pwm-lpc32xx.o obj-$(CONFIG_PWM_MXS) += pwm-mxs.o obj-$(CONFIG_PWM_PCA9685) += pwm-pca9685.o diff --git a/drivers/pwm/pwm-lp3943.c b/drivers/pwm/pwm-lp3943.c new file mode 100644 index 000000000000..8a843a04c224 --- /dev/null +++ b/drivers/pwm/pwm-lp3943.c @@ -0,0 +1,314 @@ +/* + * TI/National Semiconductor LP3943 PWM driver + * + * Copyright 2013 Texas Instruments + * + * Author: Milo Kim + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2. + */ + +#include +#include +#include +#include +#include +#include +#include + +#define LP3943_MAX_DUTY 255 +#define LP3943_MIN_PERIOD 6250 +#define LP3943_MAX_PERIOD 1600000 + +struct lp3943_pwm { + struct pwm_chip chip; + struct lp3943 *lp3943; + struct lp3943_platform_data *pdata; +}; + +static inline struct lp3943_pwm *to_lp3943_pwm(struct pwm_chip *_chip) +{ + return container_of(_chip, struct lp3943_pwm, chip); +} + +static struct lp3943_pwm_map * +lp3943_pwm_request_map(struct lp3943_pwm *lp3943_pwm, int hwpwm) +{ + struct lp3943_platform_data *pdata = lp3943_pwm->pdata; + struct lp3943 *lp3943 = lp3943_pwm->lp3943; + struct lp3943_pwm_map *pwm_map; + int i, offset; + + pwm_map = kzalloc(sizeof(*pwm_map), GFP_KERNEL); + if (!pwm_map) + return ERR_PTR(-ENOMEM); + + pwm_map->output = pdata->pwms[hwpwm]->output; + pwm_map->num_outputs = pdata->pwms[hwpwm]->num_outputs; + + for (i = 0; i < pwm_map->num_outputs; i++) { + offset = pwm_map->output[i]; + + /* Return an error if the pin is already assigned */ + if (test_and_set_bit(offset, &lp3943->pin_used)) + return ERR_PTR(-EBUSY); + } + + return pwm_map; +} + +static int lp3943_pwm_request(struct pwm_chip *chip, struct pwm_device *pwm) +{ + struct lp3943_pwm *lp3943_pwm = to_lp3943_pwm(chip); + struct lp3943_pwm_map *pwm_map; + + pwm_map = lp3943_pwm_request_map(lp3943_pwm, pwm->hwpwm); + if (IS_ERR(pwm_map)) + return PTR_ERR(pwm_map); + + return pwm_set_chip_data(pwm, pwm_map); +} + +static void lp3943_pwm_free_map(struct lp3943_pwm *lp3943_pwm, + struct lp3943_pwm_map *pwm_map) +{ + struct lp3943 *lp3943 = lp3943_pwm->lp3943; + int i, offset; + + for (i = 0; i < pwm_map->num_outputs; i++) { + offset = pwm_map->output[i]; + clear_bit(offset, &lp3943->pin_used); + } + + kfree(pwm_map); +} + +static void lp3943_pwm_free(struct pwm_chip *chip, struct pwm_device *pwm) +{ + struct lp3943_pwm *lp3943_pwm = to_lp3943_pwm(chip); + struct lp3943_pwm_map *pwm_map = pwm_get_chip_data(pwm); + + lp3943_pwm_free_map(lp3943_pwm, pwm_map); +} + +static int lp3943_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm, + int duty_ns, int period_ns) +{ + struct lp3943_pwm *lp3943_pwm = to_lp3943_pwm(chip); + struct lp3943 *lp3943 = lp3943_pwm->lp3943; + u8 val, reg_duty, reg_prescale; + int err; + + /* + * How to configure the LP3943 PWMs + * + * 1) Period = 6250 ~ 1600000 + * 2) Prescale = period / 6250 -1 + * 3) Duty = input duty + * + * Prescale and duty are register values + */ + + if (pwm->hwpwm == 0) { + reg_prescale = LP3943_REG_PRESCALE0; + reg_duty = LP3943_REG_PWM0; + } else { + reg_prescale = LP3943_REG_PRESCALE1; + reg_duty = LP3943_REG_PWM1; + } + + period_ns = clamp(period_ns, LP3943_MIN_PERIOD, LP3943_MAX_PERIOD); + val = (u8)(period_ns / LP3943_MIN_PERIOD - 1); + + err = lp3943_write_byte(lp3943, reg_prescale, val); + if (err) + return err; + + val = (u8)(duty_ns * LP3943_MAX_DUTY / period_ns); + + return lp3943_write_byte(lp3943, reg_duty, val); +} + +static int lp3943_pwm_set_mode(struct lp3943_pwm *lp3943_pwm, + struct lp3943_pwm_map *pwm_map, + u8 val) +{ + struct lp3943 *lp3943 = lp3943_pwm->lp3943; + const struct lp3943_reg_cfg *mux = lp3943->mux_cfg; + int i, index, err; + + for (i = 0; i < pwm_map->num_outputs; i++) { + index = pwm_map->output[i]; + err = lp3943_update_bits(lp3943, mux[index].reg, + mux[index].mask, + val << mux[index].shift); + if (err) + return err; + } + + return 0; +} + +static int lp3943_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm) +{ + struct lp3943_pwm *lp3943_pwm = to_lp3943_pwm(chip); + struct lp3943_pwm_map *pwm_map = pwm_get_chip_data(pwm); + u8 val; + + if (pwm->hwpwm == 0) + val = LP3943_DIM_PWM0; + else + val = LP3943_DIM_PWM1; + + /* + * Each PWM generator is set to control any of outputs of LP3943. + * To enable/disable the PWM, these output pins should be configured. + */ + + return lp3943_pwm_set_mode(lp3943_pwm, pwm_map, val); +} + +static void lp3943_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm) +{ + struct lp3943_pwm *lp3943_pwm = to_lp3943_pwm(chip); + struct lp3943_pwm_map *pwm_map = pwm_get_chip_data(pwm); + + /* + * LP3943 outputs are open-drain, so the pin should be configured + * when the PWM is disabled. + */ + + lp3943_pwm_set_mode(lp3943_pwm, pwm_map, LP3943_GPIO_OUT_HIGH); +} + +static const struct pwm_ops lp3943_pwm_ops = { + .request = lp3943_pwm_request, + .free = lp3943_pwm_free, + .config = lp3943_pwm_config, + .enable = lp3943_pwm_enable, + .disable = lp3943_pwm_disable, + .owner = THIS_MODULE, +}; + +static int lp3943_pwm_parse_dt(struct device *dev, + struct lp3943_pwm *lp3943_pwm) +{ + static const char * const name[] = { "ti,pwm0", "ti,pwm1", }; + struct device_node *node = dev->of_node; + struct lp3943_platform_data *pdata; + struct lp3943_pwm_map *pwm_map; + enum lp3943_pwm_output *output; + int i, err, proplen, count = 0; + u32 num_outputs; + + if (!node) + return -EINVAL; + + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return -ENOMEM; + + /* + * Read the output map configuration from the device tree. + * Each of the two PWM generators can drive zero or more outputs. + */ + + for (i = 0; i < LP3943_NUM_PWMS; i++) { + if (!of_get_property(node, name[i], &proplen)) + continue; + + num_outputs = proplen / sizeof(u32); + if (num_outputs == 0) + continue; + + output = devm_kzalloc(dev, sizeof(*output) * num_outputs, + GFP_KERNEL); + if (!output) + return -ENOMEM; + + err = of_property_read_u32_array(node, name[i], output, + num_outputs); + if (err) + return err; + + pwm_map = devm_kzalloc(dev, sizeof(*pwm_map), GFP_KERNEL); + if (!pwm_map) + return -ENOMEM; + + pwm_map->output = output; + pwm_map->num_outputs = num_outputs; + pdata->pwms[i] = pwm_map; + + count++; + } + + if (count == 0) + return -ENODATA; + + lp3943_pwm->pdata = pdata; + return 0; +} + +static int lp3943_pwm_probe(struct platform_device *pdev) +{ + struct lp3943 *lp3943 = dev_get_drvdata(pdev->dev.parent); + struct lp3943_pwm *lp3943_pwm; + int ret; + + lp3943_pwm = devm_kzalloc(&pdev->dev, sizeof(*lp3943_pwm), GFP_KERNEL); + if (!lp3943_pwm) + return -ENOMEM; + + lp3943_pwm->pdata = lp3943->pdata; + if (!lp3943_pwm->pdata) { + if (IS_ENABLED(CONFIG_OF)) + ret = lp3943_pwm_parse_dt(&pdev->dev, lp3943_pwm); + else + ret = -ENODEV; + + if (ret) + return ret; + } + + lp3943_pwm->lp3943 = lp3943; + lp3943_pwm->chip.dev = &pdev->dev; + lp3943_pwm->chip.ops = &lp3943_pwm_ops; + lp3943_pwm->chip.npwm = LP3943_NUM_PWMS; + + platform_set_drvdata(pdev, lp3943_pwm); + + return pwmchip_add(&lp3943_pwm->chip); +} + +static int lp3943_pwm_remove(struct platform_device *pdev) +{ + struct lp3943_pwm *lp3943_pwm = platform_get_drvdata(pdev); + + return pwmchip_remove(&lp3943_pwm->chip); +} + +#ifdef CONFIG_OF +static const struct of_device_id lp3943_pwm_of_match[] = { + { .compatible = "ti,lp3943-pwm", }, + { } +}; +MODULE_DEVICE_TABLE(of, lp3943_pwm_of_match); +#endif + +static struct platform_driver lp3943_pwm_driver = { + .probe = lp3943_pwm_probe, + .remove = lp3943_pwm_remove, + .driver = { + .name = "lp3943-pwm", + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(lp3943_pwm_of_match), + }, +}; +module_platform_driver(lp3943_pwm_driver); + +MODULE_DESCRIPTION("LP3943 PWM driver"); +MODULE_ALIAS("platform:lp3943-pwm"); +MODULE_AUTHOR("Milo Kim"); +MODULE_LICENSE("GPL"); -- cgit v1.2.2 From e0a3da80c65dc427c30829eb3e361507f843778f Mon Sep 17 00:00:00 2001 From: Stefan Agner Date: Fri, 6 Dec 2013 13:51:45 +0100 Subject: mfd: tps6586x: Add version detection Use the VERSIONCRC to determine the exact device version. According to the datasheet this register can be used as device identifier. The identification is needed since some tps6586x regulators use a different voltage table. Signed-off-by: Stefan Agner Reviewed-by: Thierry Reding Acked-by: Stephen Warren Signed-off-by: Lee Jones --- drivers/mfd/tps6586x.c | 50 ++++++++++++++++++++++++++++++++++++++++++-------- 1 file changed, 42 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/tps6586x.c b/drivers/mfd/tps6586x.c index d0e57934370f..bbd54414a75d 100644 --- a/drivers/mfd/tps6586x.c +++ b/drivers/mfd/tps6586x.c @@ -124,6 +124,7 @@ struct tps6586x { struct device *dev; struct i2c_client *client; struct regmap *regmap; + int version; int irq; struct irq_chip irq_chip; @@ -208,6 +209,14 @@ int tps6586x_irq_get_virq(struct device *dev, int irq) } EXPORT_SYMBOL_GPL(tps6586x_irq_get_virq); +int tps6586x_get_version(struct device *dev) +{ + struct tps6586x *tps6586x = dev_get_drvdata(dev); + + return tps6586x->version; +} +EXPORT_SYMBOL_GPL(tps6586x_get_version); + static int __remove_subdev(struct device *dev, void *unused) { platform_device_unregister(to_platform_device(dev)); @@ -472,12 +481,38 @@ static void tps6586x_power_off(void) tps6586x_set_bits(tps6586x_dev, TPS6586X_SUPPLYENE, SLEEP_MODE_BIT); } +static void tps6586x_print_version(struct i2c_client *client, int version) +{ + const char *name; + + switch (version) { + case TPS658621A: + name = "TPS658621A"; + break; + case TPS658621CD: + name = "TPS658621C/D"; + break; + case TPS658623: + name = "TPS658623"; + break; + case TPS658643: + name = "TPS658643"; + break; + default: + name = "TPS6586X"; + break; + } + + dev_info(&client->dev, "Found %s, VERSIONCRC is %02x\n", name, version); +} + static int tps6586x_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct tps6586x_platform_data *pdata = dev_get_platdata(&client->dev); struct tps6586x *tps6586x; int ret; + int version; if (!pdata && client->dev.of_node) pdata = tps6586x_parse_dt(client); @@ -487,19 +522,18 @@ static int tps6586x_i2c_probe(struct i2c_client *client, return -ENOTSUPP; } - ret = i2c_smbus_read_byte_data(client, TPS6586X_VERSIONCRC); - if (ret < 0) { - dev_err(&client->dev, "Chip ID read failed: %d\n", ret); + version = i2c_smbus_read_byte_data(client, TPS6586X_VERSIONCRC); + if (version < 0) { + dev_err(&client->dev, "Chip ID read failed: %d\n", version); return -EIO; } - dev_info(&client->dev, "VERSIONCRC is %02x\n", ret); - tps6586x = devm_kzalloc(&client->dev, sizeof(*tps6586x), GFP_KERNEL); - if (tps6586x == NULL) { - dev_err(&client->dev, "memory for tps6586x alloc failed\n"); + if (!tps6586x) return -ENOMEM; - } + + tps6586x->version = version; + tps6586x_print_version(client, tps6586x->version); tps6586x->client = client; tps6586x->dev = &client->dev; -- cgit v1.2.2 From 844a4f0d8a5ae075e06b6a673bbc0596510046df Mon Sep 17 00:00:00 2001 From: Stefan Agner Date: Fri, 6 Dec 2013 13:51:46 +0100 Subject: regulator: tps6586x: Add and use correct voltage table Depending on the regulator version, the voltage table might be different. Use version specific regulator tables in order to select correct voltage table. For the following regulator versions different voltage tables are now used: * TPS658623: Use correct voltage table for SM2 * TPS658643: New voltage table for SM2 Both versions are in use on the Colibri T20 module. Make use of the correct tables by requesting the correct SM2 voltage of 1.8V. This change is not backward compatible since an old driver is not able to correctly set that value. The value 1.8V is out of range for the old driver and will refuse to probe the device. The regulator starts with default settings and the driver shows appropriate error messages. On Colibri T20, the old value used to work with TPS658623 since the driver applied a wrong voltage table too. However, the TPS658643 used on V1.2 devices uses yet another voltage table and those broke that pseudo-compatibility. The regulator driver now has the correct voltage table for both regulator versions and those the correct voltage can be used in the device tree. Signed-off-by: Stefan Agner Reviewed-by: Thierry Reding Acked-by: Mark Brown Acked-by: Stephen Warren Signed-off-by: Lee Jones --- drivers/regulator/tps6586x-regulator.c | 93 +++++++++++++++++++++++++++------- 1 file changed, 74 insertions(+), 19 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/tps6586x-regulator.c b/drivers/regulator/tps6586x-regulator.c index e8e3a8afd3e2..0485d47f0d8a 100644 --- a/drivers/regulator/tps6586x-regulator.c +++ b/drivers/regulator/tps6586x-regulator.c @@ -93,6 +93,8 @@ static const unsigned int tps6586x_ldo4_voltages[] = { 2300000, 2325000, 2350000, 2375000, 2400000, 2425000, 2450000, 2475000, }; +#define tps658623_sm2_voltages tps6586x_ldo4_voltages + static const unsigned int tps6586x_ldo_voltages[] = { 1250000, 1500000, 1800000, 2500000, 2700000, 2850000, 3100000, 3300000, }; @@ -104,6 +106,13 @@ static const unsigned int tps6586x_sm2_voltages[] = { 4200000, 4250000, 4300000, 4350000, 4400000, 4450000, 4500000, 4550000, }; +static const unsigned int tps658643_sm2_voltages[] = { + 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000, 1200000, + 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000, 1400000, + 1425000, 1450000, 1475000, 1500000, 1525000, 1550000, 1575000, 1600000, + 1625000, 1650000, 1675000, 1700000, 1725000, 1750000, 1775000, 1800000, +}; + static const unsigned int tps6586x_dvm_voltages[] = { 725000, 750000, 775000, 800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000, 1000000, 1025000, 1050000, 1075000, 1100000, @@ -119,8 +128,8 @@ static const unsigned int tps6586x_dvm_voltages[] = { .ops = &tps6586x_regulator_ops, \ .type = REGULATOR_VOLTAGE, \ .id = TPS6586X_ID_##_id, \ - .n_voltages = ARRAY_SIZE(tps6586x_##vdata##_voltages), \ - .volt_table = tps6586x_##vdata##_voltages, \ + .n_voltages = ARRAY_SIZE(vdata##_voltages), \ + .volt_table = vdata##_voltages, \ .owner = THIS_MODULE, \ .enable_reg = TPS6586X_SUPPLY##ereg0, \ .enable_mask = 1 << (ebit0), \ @@ -162,27 +171,47 @@ static const unsigned int tps6586x_dvm_voltages[] = { static struct tps6586x_regulator tps6586x_regulator[] = { TPS6586X_SYS_REGULATOR(), - TPS6586X_LDO(LDO_0, "vinldo01", ldo0, SUPPLYV1, 5, 3, ENC, 0, END, 0), - TPS6586X_LDO(LDO_3, "vinldo23", ldo, SUPPLYV4, 0, 3, ENC, 2, END, 2), - TPS6586X_LDO(LDO_5, "REG-SYS", ldo, SUPPLYV6, 0, 3, ENE, 6, ENE, 6), - TPS6586X_LDO(LDO_6, "vinldo678", ldo, SUPPLYV3, 0, 3, ENC, 4, END, 4), - TPS6586X_LDO(LDO_7, "vinldo678", ldo, SUPPLYV3, 3, 3, ENC, 5, END, 5), - TPS6586X_LDO(LDO_8, "vinldo678", ldo, SUPPLYV2, 5, 3, ENC, 6, END, 6), - TPS6586X_LDO(LDO_9, "vinldo9", ldo, SUPPLYV6, 3, 3, ENE, 7, ENE, 7), - TPS6586X_LDO(LDO_RTC, "REG-SYS", ldo, SUPPLYV4, 3, 3, V4, 7, V4, 7), - TPS6586X_LDO(LDO_1, "vinldo01", dvm, SUPPLYV1, 0, 5, ENC, 1, END, 1), - TPS6586X_LDO(SM_2, "vin-sm2", sm2, SUPPLYV2, 0, 5, ENC, 7, END, 7), - - TPS6586X_DVM(LDO_2, "vinldo23", dvm, LDO2BV1, 0, 5, ENA, 3, + TPS6586X_LDO(LDO_0, "vinldo01", tps6586x_ldo0, SUPPLYV1, 5, 3, ENC, 0, + END, 0), + TPS6586X_LDO(LDO_3, "vinldo23", tps6586x_ldo, SUPPLYV4, 0, 3, ENC, 2, + END, 2), + TPS6586X_LDO(LDO_5, "REG-SYS", tps6586x_ldo, SUPPLYV6, 0, 3, ENE, 6, + ENE, 6), + TPS6586X_LDO(LDO_6, "vinldo678", tps6586x_ldo, SUPPLYV3, 0, 3, ENC, 4, + END, 4), + TPS6586X_LDO(LDO_7, "vinldo678", tps6586x_ldo, SUPPLYV3, 3, 3, ENC, 5, + END, 5), + TPS6586X_LDO(LDO_8, "vinldo678", tps6586x_ldo, SUPPLYV2, 5, 3, ENC, 6, + END, 6), + TPS6586X_LDO(LDO_9, "vinldo9", tps6586x_ldo, SUPPLYV6, 3, 3, ENE, 7, + ENE, 7), + TPS6586X_LDO(LDO_RTC, "REG-SYS", tps6586x_ldo, SUPPLYV4, 3, 3, V4, 7, + V4, 7), + TPS6586X_LDO(LDO_1, "vinldo01", tps6586x_dvm, SUPPLYV1, 0, 5, ENC, 1, + END, 1), + TPS6586X_LDO(SM_2, "vin-sm2", tps6586x_sm2, SUPPLYV2, 0, 5, ENC, 7, + END, 7), + + TPS6586X_DVM(LDO_2, "vinldo23", tps6586x_dvm, LDO2BV1, 0, 5, ENA, 3, ENB, 3, TPS6586X_VCC2, BIT(6)), - TPS6586X_DVM(LDO_4, "vinldo4", ldo4, LDO4V1, 0, 5, ENC, 3, + TPS6586X_DVM(LDO_4, "vinldo4", tps6586x_ldo4, LDO4V1, 0, 5, ENC, 3, END, 3, TPS6586X_VCC1, BIT(6)), - TPS6586X_DVM(SM_0, "vin-sm0", dvm, SM0V1, 0, 5, ENA, 1, + TPS6586X_DVM(SM_0, "vin-sm0", tps6586x_dvm, SM0V1, 0, 5, ENA, 1, ENB, 1, TPS6586X_VCC1, BIT(2)), - TPS6586X_DVM(SM_1, "vin-sm1", dvm, SM1V1, 0, 5, ENA, 0, + TPS6586X_DVM(SM_1, "vin-sm1", tps6586x_dvm, SM1V1, 0, 5, ENA, 0, ENB, 0, TPS6586X_VCC1, BIT(0)), }; +static struct tps6586x_regulator tps658623_regulator[] = { + TPS6586X_LDO(SM_2, "vin-sm2", tps658623_sm2, SUPPLYV2, 0, 5, ENC, 7, + END, 7), +}; + +static struct tps6586x_regulator tps658643_regulator[] = { + TPS6586X_LDO(SM_2, "vin-sm2", tps658643_sm2, SUPPLYV2, 0, 5, ENC, 7, + END, 7), +}; + /* * TPS6586X has 2 enable bits that are OR'ed to determine the actual * regulator state. Clearing one of this bits allows switching @@ -254,11 +283,33 @@ static int tps6586x_regulator_set_slew_rate(struct platform_device *pdev, setting->slew_rate & TPS6586X_SLEW_RATE_MASK); } -static inline struct tps6586x_regulator *find_regulator_info(int id) +static struct tps6586x_regulator *find_regulator_info(int id, int version) { struct tps6586x_regulator *ri; + struct tps6586x_regulator *table = NULL; + int num; int i; + switch (version) { + case TPS658623: + table = tps658623_regulator; + num = ARRAY_SIZE(tps658623_regulator); + break; + case TPS658643: + table = tps658643_regulator; + num = ARRAY_SIZE(tps658643_regulator); + break; + } + + /* Search version specific table first */ + if (table) { + for (i = 0; i < num; i++) { + ri = &table[i]; + if (ri->desc.id == id) + return ri; + } + } + for (i = 0; i < ARRAY_SIZE(tps6586x_regulator); i++) { ri = &tps6586x_regulator[i]; if (ri->desc.id == id) @@ -351,6 +402,7 @@ static int tps6586x_regulator_probe(struct platform_device *pdev) struct regulator_init_data *reg_data; struct tps6586x_platform_data *pdata; struct of_regulator_match *tps6586x_reg_matches = NULL; + int version; int id; int err; @@ -373,10 +425,13 @@ static int tps6586x_regulator_probe(struct platform_device *pdev) return -ENOMEM; } + version = tps6586x_get_version(pdev->dev.parent); + for (id = 0; id < TPS6586X_ID_MAX_REGULATOR; ++id) { reg_data = pdata->reg_init_data[id]; - ri = find_regulator_info(id); + ri = find_regulator_info(id, version); + if (!ri) { dev_err(&pdev->dev, "invalid regulator ID specified\n"); return -EINVAL; -- cgit v1.2.2 From 328fe79cac65331cbf22c8eefcb2a1f9164974ac Mon Sep 17 00:00:00 2001 From: Alexander Shiyan Date: Sat, 7 Dec 2013 13:00:43 +0400 Subject: mfd: mc13xxx: Remove redundant checks Checking for maximal register is already provided by regmap API, so remove redundant checks. Signed-off-by: Alexander Shiyan Signed-off-by: Lee Jones --- drivers/mfd/mc13xxx-core.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/mc13xxx-core.c b/drivers/mfd/mc13xxx-core.c index dbbf8ee3f592..b0c7cb04af85 100644 --- a/drivers/mfd/mc13xxx-core.c +++ b/drivers/mfd/mc13xxx-core.c @@ -158,9 +158,6 @@ int mc13xxx_reg_read(struct mc13xxx *mc13xxx, unsigned int offset, u32 *val) { int ret; - if (offset > MC13XXX_NUMREGS) - return -EINVAL; - ret = regmap_read(mc13xxx->regmap, offset, val); dev_vdbg(mc13xxx->dev, "[0x%02x] -> 0x%06x\n", offset, *val); @@ -172,7 +169,7 @@ int mc13xxx_reg_write(struct mc13xxx *mc13xxx, unsigned int offset, u32 val) { dev_vdbg(mc13xxx->dev, "[0x%02x] <- 0x%06x\n", offset, val); - if (offset > MC13XXX_NUMREGS || val > 0xffffff) + if (val >= BIT(24)) return -EINVAL; return regmap_write(mc13xxx->regmap, offset, val); -- cgit v1.2.2 From ec9e4ba67e3782d5a9ec12754223a3f611810a93 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Sat, 7 Dec 2013 14:03:00 +0800 Subject: mfd: sta2x11-mfd: Fix return value check in sta2x11_mfd_platform_probe() In case of error, the function devm_regmap_init_mmio() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Signed-off-by: Wei Yongjun Signed-off-by: Lee Jones --- drivers/mfd/sta2x11-mfd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mfd/sta2x11-mfd.c b/drivers/mfd/sta2x11-mfd.c index 53ab686c984f..0d42e40adb98 100644 --- a/drivers/mfd/sta2x11-mfd.c +++ b/drivers/mfd/sta2x11-mfd.c @@ -339,7 +339,7 @@ static int sta2x11_mfd_platform_probe(struct platform_device *dev, regmap_config->cache_type = REGCACHE_NONE; mfd->regmap[index] = devm_regmap_init_mmio(&dev->dev, mfd->regs[index], regmap_config); - WARN_ON(!mfd->regmap[index]); + WARN_ON(IS_ERR(mfd->regmap[index])); return 0; } -- cgit v1.2.2 From 005718c08be33e28ab89e820256bcf1fad4a370a Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Sat, 7 Dec 2013 14:02:15 +0800 Subject: mfd: sec-core: Fix sparse NULL pointer warning Fixes the following sparse warning: drivers/mfd/sec-core.c:202:16: warning: Using plain integer as NULL pointer Signed-off-by: Wei Yongjun Signed-off-by: Lee Jones --- drivers/mfd/sec-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mfd/sec-core.c b/drivers/mfd/sec-core.c index 3ad1b2fbee4a..56615af42a28 100644 --- a/drivers/mfd/sec-core.c +++ b/drivers/mfd/sec-core.c @@ -204,7 +204,7 @@ static struct sec_platform_data *sec_pmic_i2c_parse_dt_pdata( static struct sec_platform_data *sec_pmic_i2c_parse_dt_pdata( struct device *dev) { - return 0; + return NULL; } #endif -- cgit v1.2.2 From ea0f8b0b67ba4c55fef154904bf50579d2039695 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Mon, 9 Dec 2013 11:05:38 +0100 Subject: mfd: cros ec: spi: Use correct module license According to the header comment in the source file the driver is licensed under GPL v2, so update MODULE_LICENSE() to match that. Signed-off-by: Thierry Reding Signed-off-by: Lee Jones --- drivers/mfd/cros_ec_spi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mfd/cros_ec_spi.c b/drivers/mfd/cros_ec_spi.c index 5658ec48838f..d64d88a9e247 100644 --- a/drivers/mfd/cros_ec_spi.c +++ b/drivers/mfd/cros_ec_spi.c @@ -374,5 +374,5 @@ static struct spi_driver cros_ec_driver_spi = { module_spi_driver(cros_ec_driver_spi); -MODULE_LICENSE("GPL"); +MODULE_LICENSE("GPL v2"); MODULE_DESCRIPTION("ChromeOS EC multi function device (SPI)"); -- cgit v1.2.2 From fcfccdb22f340f9ae354f39793c206c7ead190dd Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Mon, 9 Dec 2013 11:05:39 +0100 Subject: mfd: cros ec: spi: Depend on OF The driver is not used on any non-DT platform, so it can depend on the OF Kconfig symbol to make that explicit. This is in preparation of a subsequent patch which parses some parameters from the device tree and would otherwise have to conditionalize that code. Signed-off-by: Thierry Reding Signed-off-by: Lee Jones --- drivers/mfd/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 1c2a389e6dc2..58ed055c1c08 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -80,7 +80,7 @@ config MFD_CROS_EC_I2C config MFD_CROS_EC_SPI tristate "ChromeOS Embedded Controller (SPI)" - depends on MFD_CROS_EC && SPI + depends on MFD_CROS_EC && SPI && OF ---help--- If you say Y here, you get support for talking to the ChromeOS EC -- cgit v1.2.2 From daf93d2287ff8eb4a2f28224275fb02d623df2ab Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Mon, 9 Dec 2013 12:36:10 +0100 Subject: mfd: cros ec: spi: Use 0 instead of '\0' consistently memset() was being called with the second parameter set to '\0', which is equivalent but longer than the more canonical 0. Update the code to use the latter variant consistently across the driver. Signed-off-by: Thierry Reding Signed-off-by: Lee Jones --- drivers/mfd/cros_ec_spi.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/cros_ec_spi.c b/drivers/mfd/cros_ec_spi.c index d64d88a9e247..005403643539 100644 --- a/drivers/mfd/cros_ec_spi.c +++ b/drivers/mfd/cros_ec_spi.c @@ -108,7 +108,7 @@ static int cros_ec_spi_receive_response(struct cros_ec_device *ec_dev, /* Receive data until we see the header byte */ deadline = jiffies + msecs_to_jiffies(EC_MSG_DEADLINE_MS); do { - memset(&trans, '\0', sizeof(trans)); + memset(&trans, 0, sizeof(trans)); trans.cs_change = 1; trans.rx_buf = ptr = ec_dev->din; trans.len = EC_MSG_PREAMBLE_COUNT; @@ -160,7 +160,7 @@ static int cros_ec_spi_receive_response(struct cros_ec_device *ec_dev, dev_dbg(ec_dev->dev, "loop, todo=%d, need_len=%d, ptr=%zd\n", todo, need_len, ptr - ec_dev->din); - memset(&trans, '\0', sizeof(trans)); + memset(&trans, 0, sizeof(trans)); trans.cs_change = 1; trans.rx_buf = ptr; trans.len = todo; @@ -220,7 +220,7 @@ static int cros_ec_command_spi_xfer(struct cros_ec_device *ec_dev, /* Transmit phase - send our message */ debug_packet(ec_dev->dev, "out", ec_dev->dout, len); - memset(&trans, '\0', sizeof(trans)); + memset(&trans, 0, sizeof(trans)); trans.tx_buf = ec_dev->dout; trans.len = len; trans.cs_change = 1; -- cgit v1.2.2 From 01e73c89cf03c020e586dc9e30d52a6e098853f6 Mon Sep 17 00:00:00 2001 From: Rhyland Klein Date: Mon, 9 Dec 2013 12:36:09 +0100 Subject: mfd: cros ec: spi: Add delay for raising CS The EC has specific timing it requires. Add support for an optional delay after raising CS to fix timing issues. This is configurable based on a DT property "google,cros-ec-spi-msg-delay". If this property isn't set, then no delay will be added. However, if set it will cause a delay equal to the value passed to it to be inserted at the end of a transaction. Signed-off-by: Rhyland Klein Reviewed-by: Bernie Thompson Reviewed-by: Andrew Bresticker Acked-by: Mark Rutland Signed-off-by: Thierry Reding Signed-off-by: Lee Jones --- drivers/mfd/cros_ec_spi.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) (limited to 'drivers') diff --git a/drivers/mfd/cros_ec_spi.c b/drivers/mfd/cros_ec_spi.c index 005403643539..84af8d7a4295 100644 --- a/drivers/mfd/cros_ec_spi.c +++ b/drivers/mfd/cros_ec_spi.c @@ -18,6 +18,7 @@ #include #include #include +#include #include #include #include @@ -62,10 +63,13 @@ * @spi: SPI device we are connected to * @last_transfer_ns: time that we last finished a transfer, or 0 if there * if no record + * @end_of_msg_delay: used to set the delay_usecs on the spi_transfer that + * is sent when we want to turn off CS at the end of a transaction. */ struct cros_ec_spi { struct spi_device *spi; s64 last_transfer_ns; + unsigned int end_of_msg_delay; }; static void debug_packet(struct device *dev, const char *name, u8 *ptr, @@ -238,6 +242,17 @@ static int cros_ec_command_spi_xfer(struct cros_ec_device *ec_dev, /* turn off CS */ spi_message_init(&msg); + + if (ec_spi->end_of_msg_delay) { + /* + * Add delay for last transaction, to ensure the rising edge + * doesn't come too soon after the end of the data. + */ + memset(&trans, 0, sizeof(trans)); + trans.delay_usecs = ec_spi->end_of_msg_delay; + spi_message_add_tail(&trans, &msg); + } + final_ret = spi_sync(ec_spi->spi, &msg); ktime_get_ts(&ts); ec_spi->last_transfer_ns = timespec_to_ns(&ts); @@ -284,6 +299,17 @@ static int cros_ec_command_spi_xfer(struct cros_ec_device *ec_dev, return 0; } +static void cros_ec_spi_dt_probe(struct cros_ec_spi *ec_spi, struct device *dev) +{ + struct device_node *np = dev->of_node; + u32 val; + int ret; + + ret = of_property_read_u32(np, "google,cros-ec-spi-msg-delay", &val); + if (!ret) + ec_spi->end_of_msg_delay = val; +} + static int cros_ec_spi_probe(struct spi_device *spi) { struct device *dev = &spi->dev; @@ -305,6 +331,9 @@ static int cros_ec_spi_probe(struct spi_device *spi) if (!ec_dev) return -ENOMEM; + /* Check for any DT properties */ + cros_ec_spi_dt_probe(ec_spi, dev); + spi_set_drvdata(spi, ec_dev); ec_dev->name = "SPI"; ec_dev->dev = dev; -- cgit v1.2.2 From a7c42b25455d589ae6e13fc636a6d83632c3d39f Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Mon, 9 Dec 2013 15:06:47 -0700 Subject: mfd: Always assign of_node in mfd_add_device() mfd_add_device() assigns .of_node in the device objects it creates only if the mfd_cell for the device has the .of_compatible field set and the DT node for the top-level MFD device contains a child whose compatible property matches the cell's .of_compatible field. This leaves .of_node unset in many cases. When this happens, entries in the DT /aliases property which refer to the top-level MFD DT node will never match the MFD child devices, hence causing the requested alias not to be honored. Solve this by setting each MFD child device's .of_node equal to the top- level MFD device's .of_node field in the cases where it would otherwise remain unset. The first use-case for this will be aliases for the TPS6586x's RTC device. Signed-off-by: Stephen Warren Signed-off-by: Lee Jones --- drivers/mfd/mfd-core.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c index 267649244737..32e8d47d9002 100644 --- a/drivers/mfd/mfd-core.c +++ b/drivers/mfd/mfd-core.c @@ -117,6 +117,8 @@ static int mfd_add_device(struct device *parent, int id, } } } + if (!pdev->dev.of_node) + pdev->dev.of_node = parent->of_node; if (cell->pdata_size) { ret = platform_device_add_data(pdev, -- cgit v1.2.2 From bae911a055a3d88c8754e9c1879f29da6ba16663 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Tue, 10 Dec 2013 15:35:16 -0800 Subject: mfd: ssbi: Remove platform data structs and hide ssbi type enum The ssbi driver assumes that the device is DT based. Remove the platform data structs that will never be used and hide the enum in the only C file that uses it. Signed-off-by: Stephen Boyd Signed-off-by: Lee Jones --- drivers/mfd/ssbi.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers') diff --git a/drivers/mfd/ssbi.c b/drivers/mfd/ssbi.c index 102a22844297..435c6f7a3b72 100644 --- a/drivers/mfd/ssbi.c +++ b/drivers/mfd/ssbi.c @@ -65,6 +65,12 @@ #define SSBI_TIMEOUT_US 100 +enum ssbi_controller_type { + MSM_SBI_CTRL_SSBI = 0, + MSM_SBI_CTRL_SSBI2, + MSM_SBI_CTRL_PMIC_ARBITER, +}; + struct ssbi { struct device *slave; void __iomem *base; -- cgit v1.2.2 From 5eec14ccf90942fecd89e147e0b88ab12dd83e70 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Tue, 10 Dec 2013 15:35:17 -0800 Subject: mfd: ssbi: Constify buffer in ssbi_write In preparation for passing a const pointer directly to ssbi_write() from the regmap APIs. Signed-off-by: Stephen Boyd Signed-off-by: Lee Jones --- drivers/mfd/ssbi.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/ssbi.c b/drivers/mfd/ssbi.c index 435c6f7a3b72..dd1d28f343f6 100644 --- a/drivers/mfd/ssbi.c +++ b/drivers/mfd/ssbi.c @@ -77,7 +77,7 @@ struct ssbi { spinlock_t lock; enum ssbi_controller_type controller_type; int (*read)(struct ssbi *, u16 addr, u8 *buf, int len); - int (*write)(struct ssbi *, u16 addr, u8 *buf, int len); + int (*write)(struct ssbi *, u16 addr, const u8 *buf, int len); }; #define to_ssbi(dev) platform_get_drvdata(to_platform_device(dev)) @@ -146,7 +146,7 @@ err: } static int -ssbi_write_bytes(struct ssbi *ssbi, u16 addr, u8 *buf, int len) +ssbi_write_bytes(struct ssbi *ssbi, u16 addr, const u8 *buf, int len) { int ret = 0; @@ -223,7 +223,7 @@ err: } static int -ssbi_pa_write_bytes(struct ssbi *ssbi, u16 addr, u8 *buf, int len) +ssbi_pa_write_bytes(struct ssbi *ssbi, u16 addr, const u8 *buf, int len) { u32 cmd; int ret = 0; @@ -255,7 +255,7 @@ int ssbi_read(struct device *dev, u16 addr, u8 *buf, int len) } EXPORT_SYMBOL_GPL(ssbi_read); -int ssbi_write(struct device *dev, u16 addr, u8 *buf, int len) +int ssbi_write(struct device *dev, u16 addr, const u8 *buf, int len) { struct ssbi *ssbi = to_ssbi(dev); unsigned long flags; -- cgit v1.2.2 From 12eda2a2e644d319dfc49bede1620c2f48ccbc8a Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Tue, 10 Dec 2013 15:35:19 -0800 Subject: mfd: ssbi: Mark match table const This is a read-only data structure. Signed-off-by: Stephen Boyd Signed-off-by: Lee Jones --- drivers/mfd/ssbi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mfd/ssbi.c b/drivers/mfd/ssbi.c index dd1d28f343f6..b78942ed4c67 100644 --- a/drivers/mfd/ssbi.c +++ b/drivers/mfd/ssbi.c @@ -317,7 +317,7 @@ static int ssbi_probe(struct platform_device *pdev) return of_platform_populate(np, NULL, NULL, &pdev->dev); } -static struct of_device_id ssbi_match_table[] = { +static const struct of_device_id ssbi_match_table[] = { { .compatible = "qcom,ssbi" }, {} }; -- cgit v1.2.2 From e5a3da2143962edff6c8a66dec43654c2951804f Mon Sep 17 00:00:00 2001 From: Alexander Shiyan Date: Sat, 14 Dec 2013 17:03:10 +0400 Subject: mfd: mc13xxx: Remove useless symbol MFD_MC13783 Symbol MFD_MC13783 always selected by MFD_MC13XXX, so no need to keep additional symbol. Signed-off-by: Alexander Shiyan Signed-off-by: Lee Jones --- drivers/input/misc/Kconfig | 2 +- drivers/input/touchscreen/Kconfig | 2 +- drivers/mfd/Kconfig | 4 ---- drivers/regulator/Kconfig | 2 +- 4 files changed, 3 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index 5f4967d01bc3..e2413acbbb16 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -168,7 +168,7 @@ config INPUT_MAX8997_HAPTIC config INPUT_MC13783_PWRBUTTON tristate "MC13783 ON buttons" - depends on MFD_MC13783 + depends on MFD_MC13XXX help Support the ON buttons of MC13783 PMIC as an input device reporting power button status. diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index 961d58d32647..07e9e82029d1 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -717,7 +717,7 @@ config TOUCHSCREEN_USB_COMPOSITE config TOUCHSCREEN_MC13783 tristate "Freescale MC13783 touchscreen input driver" - depends on MFD_MC13783 + depends on MFD_MC13XXX help Say Y here if you have an Freescale MC13783 PMIC on your board and want to use its touchscreen diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 58ed055c1c08..49bb445d846a 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -163,14 +163,10 @@ config MFD_DA9063 Additional drivers must be enabled in order to use the functionality of the device. -config MFD_MC13783 - tristate - config MFD_MC13XXX tristate depends on (SPI_MASTER || I2C) select MFD_CORE - select MFD_MC13783 help Enable support for the Freescale MC13783 and MC13892 PMICs. This driver provides common support for accessing the device, diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index ce785f481281..db9ae6fa2404 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -343,7 +343,7 @@ config REGULATOR_MC13XXX_CORE config REGULATOR_MC13783 tristate "Freescale MC13783 regulator driver" - depends on MFD_MC13783 + depends on MFD_MC13XXX select REGULATOR_MC13XXX_CORE help Say y here to support the regulators found on the Freescale MC13783 -- cgit v1.2.2 From db9ef449aaa550389008c2020fba02e4440ce24b Mon Sep 17 00:00:00 2001 From: Alexander Shiyan Date: Sat, 14 Dec 2013 17:03:12 +0400 Subject: mfd: mc13xxx: Simplify probe() & remove() This patch simplifies probe() and remove() functions by moving some initialisation code out from the I2C/SPI init() and exit() functions and into the core driver. Signed-off-by: Alexander Shiyan Signed-off-by: Lee Jones --- drivers/mfd/mc13xxx-core.c | 36 +++++++++++++++++------------------- drivers/mfd/mc13xxx-i2c.c | 18 ++++-------------- drivers/mfd/mc13xxx-spi.c | 19 ++++++------------- drivers/mfd/mc13xxx.h | 6 ++---- 4 files changed, 29 insertions(+), 50 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/mc13xxx-core.c b/drivers/mfd/mc13xxx-core.c index b0c7cb04af85..06e64b6fcb89 100644 --- a/drivers/mfd/mc13xxx-core.c +++ b/drivers/mfd/mc13xxx-core.c @@ -636,42 +636,36 @@ static inline int mc13xxx_probe_flags_dt(struct mc13xxx *mc13xxx) } #endif -int mc13xxx_common_init(struct mc13xxx *mc13xxx, - struct mc13xxx_platform_data *pdata, int irq) +int mc13xxx_common_init(struct device *dev) { + struct mc13xxx_platform_data *pdata = dev_get_platdata(dev); + struct mc13xxx *mc13xxx = dev_get_drvdata(dev); int ret; u32 revision; - mc13xxx_lock(mc13xxx); + mc13xxx->dev = dev; ret = mc13xxx_reg_read(mc13xxx, MC13XXX_REVISION, &revision); if (ret) - goto err_revision; + return ret; mc13xxx->variant->print_revision(mc13xxx, revision); /* mask all irqs */ ret = mc13xxx_reg_write(mc13xxx, MC13XXX_IRQMASK0, 0x00ffffff); if (ret) - goto err_mask; + return ret; ret = mc13xxx_reg_write(mc13xxx, MC13XXX_IRQMASK1, 0x00ffffff); if (ret) - goto err_mask; + return ret; - ret = request_threaded_irq(irq, NULL, mc13xxx_irq_thread, + ret = request_threaded_irq(mc13xxx->irq, NULL, mc13xxx_irq_thread, IRQF_ONESHOT | IRQF_TRIGGER_HIGH, "mc13xxx", mc13xxx); - - if (ret) { -err_mask: -err_revision: - mc13xxx_unlock(mc13xxx); + if (ret) return ret; - } - - mc13xxx->irq = irq; - mc13xxx_unlock(mc13xxx); + mutex_init(&mc13xxx->lock); if (mc13xxx_probe_flags_dt(mc13xxx) < 0 && pdata) mc13xxx->flags = pdata->flags; @@ -707,13 +701,17 @@ err_revision: } EXPORT_SYMBOL_GPL(mc13xxx_common_init); -void mc13xxx_common_cleanup(struct mc13xxx *mc13xxx) +int mc13xxx_common_exit(struct device *dev) { + struct mc13xxx *mc13xxx = dev_get_drvdata(dev); + free_irq(mc13xxx->irq, mc13xxx); + mfd_remove_devices(dev); + mutex_destroy(&mc13xxx->lock); - mfd_remove_devices(mc13xxx->dev); + return 0; } -EXPORT_SYMBOL_GPL(mc13xxx_common_cleanup); +EXPORT_SYMBOL_GPL(mc13xxx_common_exit); MODULE_DESCRIPTION("Core driver for Freescale MC13XXX PMIC"); MODULE_AUTHOR("Uwe Kleine-Koenig "); diff --git a/drivers/mfd/mc13xxx-i2c.c b/drivers/mfd/mc13xxx-i2c.c index 898bd335cd8e..ae3addb153a2 100644 --- a/drivers/mfd/mc13xxx-i2c.c +++ b/drivers/mfd/mc13xxx-i2c.c @@ -10,7 +10,6 @@ #include #include #include -#include #include #include #include @@ -60,7 +59,6 @@ static int mc13xxx_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct mc13xxx *mc13xxx; - struct mc13xxx_platform_data *pdata = dev_get_platdata(&client->dev); int ret; mc13xxx = devm_kzalloc(&client->dev, sizeof(*mc13xxx), GFP_KERNEL); @@ -69,15 +67,13 @@ static int mc13xxx_i2c_probe(struct i2c_client *client, dev_set_drvdata(&client->dev, mc13xxx); - mc13xxx->dev = &client->dev; - mutex_init(&mc13xxx->lock); + mc13xxx->irq = client->irq; mc13xxx->regmap = devm_regmap_init_i2c(client, &mc13xxx_regmap_i2c_config); if (IS_ERR(mc13xxx->regmap)) { ret = PTR_ERR(mc13xxx->regmap); - dev_err(mc13xxx->dev, "Failed to initialize register map: %d\n", - ret); + dev_err(&client->dev, "Failed to initialize regmap: %d\n", ret); return ret; } @@ -89,18 +85,12 @@ static int mc13xxx_i2c_probe(struct i2c_client *client, mc13xxx->variant = (void *)id->driver_data; } - ret = mc13xxx_common_init(mc13xxx, pdata, client->irq); - - return ret; + return mc13xxx_common_init(&client->dev); } static int mc13xxx_i2c_remove(struct i2c_client *client) { - struct mc13xxx *mc13xxx = dev_get_drvdata(&client->dev); - - mc13xxx_common_cleanup(mc13xxx); - - return 0; + return mc13xxx_common_exit(&client->dev); } static struct i2c_driver mc13xxx_i2c_driver = { diff --git a/drivers/mfd/mc13xxx-spi.c b/drivers/mfd/mc13xxx-spi.c index cbcc86d9b6e7..38ab67829791 100644 --- a/drivers/mfd/mc13xxx-spi.c +++ b/drivers/mfd/mc13xxx-spi.c @@ -13,7 +13,6 @@ #include #include #include -#include #include #include #include @@ -129,26 +128,24 @@ static struct regmap_bus regmap_mc13xxx_bus = { static int mc13xxx_spi_probe(struct spi_device *spi) { struct mc13xxx *mc13xxx; - struct mc13xxx_platform_data *pdata = dev_get_platdata(&spi->dev); int ret; mc13xxx = devm_kzalloc(&spi->dev, sizeof(*mc13xxx), GFP_KERNEL); if (!mc13xxx) return -ENOMEM; - spi_set_drvdata(spi, mc13xxx); + dev_set_drvdata(&spi->dev, mc13xxx); + spi->mode = SPI_MODE_0 | SPI_CS_HIGH; - mc13xxx->dev = &spi->dev; - mutex_init(&mc13xxx->lock); + mc13xxx->irq = spi->irq; mc13xxx->regmap = devm_regmap_init(&spi->dev, ®map_mc13xxx_bus, &spi->dev, &mc13xxx_regmap_spi_config); if (IS_ERR(mc13xxx->regmap)) { ret = PTR_ERR(mc13xxx->regmap); - dev_err(mc13xxx->dev, "Failed to initialize register map: %d\n", - ret); + dev_err(&spi->dev, "Failed to initialize regmap: %d\n", ret); return ret; } @@ -163,16 +160,12 @@ static int mc13xxx_spi_probe(struct spi_device *spi) mc13xxx->variant = (void *)id_entry->driver_data; } - return mc13xxx_common_init(mc13xxx, pdata, spi->irq); + return mc13xxx_common_init(&spi->dev); } static int mc13xxx_spi_remove(struct spi_device *spi) { - struct mc13xxx *mc13xxx = spi_get_drvdata(spi); - - mc13xxx_common_cleanup(mc13xxx); - - return 0; + return mc13xxx_common_exit(&spi->dev); } static struct spi_driver mc13xxx_spi_driver = { diff --git a/drivers/mfd/mc13xxx.h b/drivers/mfd/mc13xxx.h index 460ec5c7b18c..ae7f1659f5d1 100644 --- a/drivers/mfd/mc13xxx.h +++ b/drivers/mfd/mc13xxx.h @@ -43,9 +43,7 @@ struct mc13xxx { int adcflags; }; -int mc13xxx_common_init(struct mc13xxx *mc13xxx, - struct mc13xxx_platform_data *pdata, int irq); - -void mc13xxx_common_cleanup(struct mc13xxx *mc13xxx); +int mc13xxx_common_init(struct device *dev); +int mc13xxx_common_exit(struct device *dev); #endif /* __DRIVERS_MFD_MC13XXX_H */ -- cgit v1.2.2 From c1ec8fc308bb8171c76b5bed7f4028b6290e53f9 Mon Sep 17 00:00:00 2001 From: Laszlo Papp Date: Tue, 17 Dec 2013 12:49:51 +0000 Subject: mfd: max8997: Enforce mfd_add_devices() return value check The original author provided a random return value check which is redundant and seemingly floating. This patch not only relocates the check so it is more clearly associated with the invokation of mfd_add_devices(), but provides a store for the error value. We also print a meaningful message on error before returning. Signed-off-by: Laszlo Papp Signed-off-by: Lee Jones --- drivers/mfd/max8997.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/max8997.c b/drivers/mfd/max8997.c index 1b80e51c2e73..10141698ff94 100644 --- a/drivers/mfd/max8997.c +++ b/drivers/mfd/max8997.c @@ -228,18 +228,19 @@ static int max8997_i2c_probe(struct i2c_client *i2c, max8997_irq_init(max8997); - mfd_add_devices(max8997->dev, -1, max8997_devs, + ret = mfd_add_devices(max8997->dev, -1, max8997_devs, ARRAY_SIZE(max8997_devs), NULL, 0, NULL); + if (ret < 0) { + dev_err(max8997->dev, "failed to add MFD devices %d\n", ret); + goto err_mfd; + } /* * TODO: enable others (flash, muic, rtc, battery, ...) and * check the return value */ - if (ret < 0) - goto err_mfd; - /* MAX8997 has a power button input. */ device_init_wakeup(max8997->dev, pdata->wakeup); -- cgit v1.2.2 From 0da14eeba216932db2e4b8805ab58dae72e44a45 Mon Sep 17 00:00:00 2001 From: Micky Ching Date: Wed, 18 Dec 2013 10:03:12 +0800 Subject: mfd: rtsx: Add set pull control macro and simplify rtl8411 Add set pull control macro to reduce code for setting pull control, and use a common init function to reduce code for rtl8411.c. So this patch is used to just simplify code. Signed-off-by: Micky Ching Reviewed-by: Dan Carpenter Signed-off-by: Lee Jones --- drivers/mfd/rtl8411.c | 53 +++++++++++++------------------------------------- drivers/mfd/rtsx_pcr.h | 8 ++++++++ 2 files changed, 21 insertions(+), 40 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/rtl8411.c b/drivers/mfd/rtl8411.c index 1ee867591ee4..327c8894fd4a 100644 --- a/drivers/mfd/rtl8411.c +++ b/drivers/mfd/rtl8411.c @@ -441,12 +441,10 @@ static const u32 rtl8411b_qfn48_ms_pull_ctl_disable_tbl[] = { 0, }; -void rtl8411_init_params(struct rtsx_pcr *pcr) +void rtl8411_init_common_params(struct rtsx_pcr *pcr) { pcr->extra_caps = EXTRA_CAPS_SD_SDR50 | EXTRA_CAPS_SD_SDR104; pcr->num_slots = 2; - pcr->ops = &rtl8411_pcr_ops; - pcr->flags = 0; pcr->card_drive_sel = RTL8411_CARD_DRIVE_DEFAULT; pcr->sd30_drive_sel_1v8 = DRIVER_TYPE_B; @@ -454,47 +452,22 @@ void rtl8411_init_params(struct rtsx_pcr *pcr) pcr->aspm_en = ASPM_L1_EN; pcr->tx_initial_phase = SET_CLOCK_PHASE(23, 7, 14); pcr->rx_initial_phase = SET_CLOCK_PHASE(4, 3, 10); - pcr->ic_version = rtl8411_get_ic_version(pcr); - pcr->sd_pull_ctl_enable_tbl = rtl8411_sd_pull_ctl_enable_tbl; - pcr->sd_pull_ctl_disable_tbl = rtl8411_sd_pull_ctl_disable_tbl; - pcr->ms_pull_ctl_enable_tbl = rtl8411_ms_pull_ctl_enable_tbl; - pcr->ms_pull_ctl_disable_tbl = rtl8411_ms_pull_ctl_disable_tbl; +} + +void rtl8411_init_params(struct rtsx_pcr *pcr) +{ + rtl8411_init_common_params(pcr); + pcr->ops = &rtl8411_pcr_ops; + set_pull_ctrl_tables(pcr, rtl8411); } void rtl8411b_init_params(struct rtsx_pcr *pcr) { - pcr->extra_caps = EXTRA_CAPS_SD_SDR50 | EXTRA_CAPS_SD_SDR104; - pcr->num_slots = 2; + rtl8411_init_common_params(pcr); pcr->ops = &rtl8411b_pcr_ops; - - pcr->flags = 0; - pcr->card_drive_sel = RTL8411_CARD_DRIVE_DEFAULT; - pcr->sd30_drive_sel_1v8 = DRIVER_TYPE_B; - pcr->sd30_drive_sel_3v3 = DRIVER_TYPE_D; - pcr->aspm_en = ASPM_L1_EN; - pcr->tx_initial_phase = SET_CLOCK_PHASE(23, 7, 14); - pcr->rx_initial_phase = SET_CLOCK_PHASE(4, 3, 10); - - pcr->ic_version = rtl8411_get_ic_version(pcr); - - if (rtl8411b_is_qfn48(pcr)) { - pcr->sd_pull_ctl_enable_tbl = - rtl8411b_qfn48_sd_pull_ctl_enable_tbl; - pcr->sd_pull_ctl_disable_tbl = - rtl8411b_qfn48_sd_pull_ctl_disable_tbl; - pcr->ms_pull_ctl_enable_tbl = - rtl8411b_qfn48_ms_pull_ctl_enable_tbl; - pcr->ms_pull_ctl_disable_tbl = - rtl8411b_qfn48_ms_pull_ctl_disable_tbl; - } else { - pcr->sd_pull_ctl_enable_tbl = - rtl8411b_qfn64_sd_pull_ctl_enable_tbl; - pcr->sd_pull_ctl_disable_tbl = - rtl8411b_qfn64_sd_pull_ctl_disable_tbl; - pcr->ms_pull_ctl_enable_tbl = - rtl8411b_qfn64_ms_pull_ctl_enable_tbl; - pcr->ms_pull_ctl_disable_tbl = - rtl8411b_qfn64_ms_pull_ctl_disable_tbl; - } + if (rtl8411b_is_qfn48(pcr)) + set_pull_ctrl_tables(pcr, rtl8411b_qfn48); + else + set_pull_ctrl_tables(pcr, rtl8411b_qfn64); } diff --git a/drivers/mfd/rtsx_pcr.h b/drivers/mfd/rtsx_pcr.h index 947e79b05ceb..e9feadbfaf5c 100644 --- a/drivers/mfd/rtsx_pcr.h +++ b/drivers/mfd/rtsx_pcr.h @@ -63,4 +63,12 @@ static inline u8 map_sd_drive(int idx) #define rtl8411_reg_to_sd30_drive_sel_3v3(reg) (((reg) >> 5) & 0x07) #define rtl8411b_reg_to_sd30_drive_sel_3v3(reg) ((reg) & 0x03) +#define set_pull_ctrl_tables(pcr, __device) \ +do { \ + pcr->sd_pull_ctl_enable_tbl = __device##_sd_pull_ctl_enable_tbl; \ + pcr->sd_pull_ctl_disable_tbl = __device##_sd_pull_ctl_disable_tbl; \ + pcr->ms_pull_ctl_enable_tbl = __device##_ms_pull_ctl_enable_tbl; \ + pcr->ms_pull_ctl_disable_tbl = __device##_ms_pull_ctl_disable_tbl; \ +} while (0) + #endif -- cgit v1.2.2 From 56cb3cc1872923b69fdeeb00362b7da4d6cf5590 Mon Sep 17 00:00:00 2001 From: Micky Ching Date: Wed, 18 Dec 2013 10:03:13 +0800 Subject: mfd: rtsx: Add support for card reader rtl8402 rtl8402 is much like rtl8411, so just add it to rtl8411.c Signed-off-by: Micky Ching Reviewed-by: Dan Carpenter Signed-off-by: Lee Jones --- drivers/mfd/rtl8411.c | 44 ++++++++++++++++++++++++++++++++++++++++---- drivers/mfd/rtsx_pcr.c | 5 +++++ drivers/mfd/rtsx_pcr.h | 1 + 3 files changed, 46 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/rtl8411.c b/drivers/mfd/rtl8411.c index 327c8894fd4a..ada38ad54e87 100644 --- a/drivers/mfd/rtl8411.c +++ b/drivers/mfd/rtl8411.c @@ -191,24 +191,25 @@ static int rtl8411_card_power_off(struct rtsx_pcr *pcr, int card) BPP_LDO_POWB, BPP_LDO_SUSPEND); } -static int rtl8411_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage) +static int rtl8411_do_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage, + int bpp_tuned18_shift, int bpp_asic_1v8) { u8 mask, val; int err; - mask = (BPP_REG_TUNED18 << BPP_TUNED18_SHIFT_8411) | BPP_PAD_MASK; + mask = (BPP_REG_TUNED18 << bpp_tuned18_shift) | BPP_PAD_MASK; if (voltage == OUTPUT_3V3) { err = rtsx_pci_write_register(pcr, SD30_DRIVE_SEL, 0x07, pcr->sd30_drive_sel_3v3); if (err < 0) return err; - val = (BPP_ASIC_3V3 << BPP_TUNED18_SHIFT_8411) | BPP_PAD_3V3; + val = (BPP_ASIC_3V3 << bpp_tuned18_shift) | BPP_PAD_3V3; } else if (voltage == OUTPUT_1V8) { err = rtsx_pci_write_register(pcr, SD30_DRIVE_SEL, 0x07, pcr->sd30_drive_sel_1v8); if (err < 0) return err; - val = (BPP_ASIC_1V8 << BPP_TUNED18_SHIFT_8411) | BPP_PAD_1V8; + val = (bpp_asic_1v8 << bpp_tuned18_shift) | BPP_PAD_1V8; } else { return -EINVAL; } @@ -216,6 +217,18 @@ static int rtl8411_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage) return rtsx_pci_write_register(pcr, LDO_CTL, mask, val); } +static int rtl8411_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage) +{ + return rtl8411_do_switch_output_voltage(pcr, voltage, + BPP_TUNED18_SHIFT_8411, BPP_ASIC_1V8); +} + +static int rtl8402_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage) +{ + return rtl8411_do_switch_output_voltage(pcr, voltage, + BPP_TUNED18_SHIFT_8402, BPP_ASIC_2V0); +} + static unsigned int rtl8411_cd_deglitch(struct rtsx_pcr *pcr) { unsigned int card_exist; @@ -295,6 +308,22 @@ static const struct pcr_ops rtl8411_pcr_ops = { .force_power_down = rtl8411_force_power_down, }; +static const struct pcr_ops rtl8402_pcr_ops = { + .fetch_vendor_settings = rtl8411_fetch_vendor_settings, + .extra_init_hw = rtl8411_extra_init_hw, + .optimize_phy = NULL, + .turn_on_led = rtl8411_turn_on_led, + .turn_off_led = rtl8411_turn_off_led, + .enable_auto_blink = rtl8411_enable_auto_blink, + .disable_auto_blink = rtl8411_disable_auto_blink, + .card_power_on = rtl8411_card_power_on, + .card_power_off = rtl8411_card_power_off, + .switch_output_voltage = rtl8402_switch_output_voltage, + .cd_deglitch = rtl8411_cd_deglitch, + .conv_clk_and_div_n = rtl8411_conv_clk_and_div_n, + .force_power_down = rtl8411_force_power_down, +}; + static const struct pcr_ops rtl8411b_pcr_ops = { .fetch_vendor_settings = rtl8411b_fetch_vendor_settings, .extra_init_hw = rtl8411b_extra_init_hw, @@ -471,3 +500,10 @@ void rtl8411b_init_params(struct rtsx_pcr *pcr) else set_pull_ctrl_tables(pcr, rtl8411b_qfn64); } + +void rtl8402_init_params(struct rtsx_pcr *pcr) +{ + rtl8411_init_common_params(pcr); + pcr->ops = &rtl8402_pcr_ops; + set_pull_ctrl_tables(pcr, rtl8411); +} diff --git a/drivers/mfd/rtsx_pcr.c b/drivers/mfd/rtsx_pcr.c index 8ab8f1d595ea..767be4d44f15 100644 --- a/drivers/mfd/rtsx_pcr.c +++ b/drivers/mfd/rtsx_pcr.c @@ -57,6 +57,7 @@ static const struct pci_device_id rtsx_pci_ids[] = { { PCI_DEVICE(0x10EC, 0x5227), PCI_CLASS_OTHERS << 16, 0xFF0000 }, { PCI_DEVICE(0x10EC, 0x5249), PCI_CLASS_OTHERS << 16, 0xFF0000 }, { PCI_DEVICE(0x10EC, 0x5287), PCI_CLASS_OTHERS << 16, 0xFF0000 }, + { PCI_DEVICE(0x10EC, 0x5286), PCI_CLASS_OTHERS << 16, 0xFF0000 }, { 0, } }; @@ -1061,6 +1062,10 @@ static int rtsx_pci_init_chip(struct rtsx_pcr *pcr) case 0x5287: rtl8411b_init_params(pcr); break; + + case 0x5286: + rtl8402_init_params(pcr); + break; } dev_dbg(&(pcr->pci->dev), "PID: 0x%04x, IC version: 0x%02x\n", diff --git a/drivers/mfd/rtsx_pcr.h b/drivers/mfd/rtsx_pcr.h index e9feadbfaf5c..07e4c2ebf05a 100644 --- a/drivers/mfd/rtsx_pcr.h +++ b/drivers/mfd/rtsx_pcr.h @@ -30,6 +30,7 @@ void rts5209_init_params(struct rtsx_pcr *pcr); void rts5229_init_params(struct rtsx_pcr *pcr); void rtl8411_init_params(struct rtsx_pcr *pcr); +void rtl8402_init_params(struct rtsx_pcr *pcr); void rts5227_init_params(struct rtsx_pcr *pcr); void rts5249_init_params(struct rtsx_pcr *pcr); void rtl8411b_init_params(struct rtsx_pcr *pcr); -- cgit v1.2.2 From 74142ffc0b52cfe6f9d2f6f34a5f3eedbfe3ce51 Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Fri, 20 Dec 2013 10:35:07 +0100 Subject: mfd: max77686: Fix regmap resource leak on driver remove The regmap used by max77686 MFD driver was not freed with regmap_exit() on driver exit. This lead to leak of resources. Replace regmap_init_i2c() call in driver probe with initialization of managed register map so the regmap will be properly freed by the device management code. Cc: stable@vger.kernel.org Signed-off-by: Krzysztof Kozlowski Signed-off-by: Lee Jones --- drivers/mfd/max77686.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mfd/max77686.c b/drivers/mfd/max77686.c index fb0848544b76..f53d5823a3f7 100644 --- a/drivers/mfd/max77686.c +++ b/drivers/mfd/max77686.c @@ -104,7 +104,7 @@ static int max77686_i2c_probe(struct i2c_client *i2c, max77686->irq_gpio = pdata->irq_gpio; max77686->irq = i2c->irq; - max77686->regmap = regmap_init_i2c(i2c, &max77686_regmap_config); + max77686->regmap = devm_regmap_init_i2c(i2c, &max77686_regmap_config); if (IS_ERR(max77686->regmap)) { ret = PTR_ERR(max77686->regmap); dev_err(max77686->dev, "Failed to allocate register map: %d\n", -- cgit v1.2.2 From 75ad13278cb16a0d7f5d24644d36884bfdc92044 Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Fri, 20 Dec 2013 10:35:08 +0100 Subject: mfd: max77693: Set proper maximum register for MUIC regmap The MUIC block in max77693 has different I2C address than PMIC. The driver allocated two regmaps: for PMIC and MUIC. However it used the same regmap_config (with max_register field) for both regmaps. Actual maximum address of register for MUIC is different than for PMIC. Define another regmap_config for MUIC with proper max_register value. Signed-off-by: Krzysztof Kozlowski Signed-off-by: Lee Jones --- drivers/mfd/max77693.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mfd/max77693.c b/drivers/mfd/max77693.c index a0093a839d4b..e0859987ab6b 100644 --- a/drivers/mfd/max77693.c +++ b/drivers/mfd/max77693.c @@ -107,6 +107,12 @@ static const struct regmap_config max77693_regmap_config = { .max_register = MAX77693_PMIC_REG_END, }; +static const struct regmap_config max77693_regmap_muic_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = MAX77693_MUIC_REG_END, +}; + static int max77693_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { @@ -153,7 +159,7 @@ static int max77693_i2c_probe(struct i2c_client *i2c, * before call max77693-muic probe() function. */ max77693->regmap_muic = devm_regmap_init_i2c(max77693->muic, - &max77693_regmap_config); + &max77693_regmap_muic_config); if (IS_ERR(max77693->regmap_muic)) { ret = PTR_ERR(max77693->regmap_muic); dev_err(max77693->dev, -- cgit v1.2.2 From b5167bc466ef5a267cbd2c1acc4bfb8959d26f47 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Fri, 20 Dec 2013 10:50:30 +0800 Subject: mfd: rtsx: Fix sparse non static symbol warning Fixes the following sparse warning: drivers/mfd/rtl8411.c:473:6: warning: symbol 'rtl8411_init_common_params' was not declared. Should it be static? Signed-off-by: Wei Yongjun Signed-off-by: Lee Jones --- drivers/mfd/rtl8411.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mfd/rtl8411.c b/drivers/mfd/rtl8411.c index ada38ad54e87..fdd34c883d86 100644 --- a/drivers/mfd/rtl8411.c +++ b/drivers/mfd/rtl8411.c @@ -470,7 +470,7 @@ static const u32 rtl8411b_qfn48_ms_pull_ctl_disable_tbl[] = { 0, }; -void rtl8411_init_common_params(struct rtsx_pcr *pcr) +static void rtl8411_init_common_params(struct rtsx_pcr *pcr) { pcr->extra_caps = EXTRA_CAPS_SD_SDR50 | EXTRA_CAPS_SD_SDR104; pcr->num_slots = 2; -- cgit v1.2.2 From 60a4992aae33052a0be69b54ff6286d22e7f403f Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Fri, 20 Dec 2013 14:21:16 +0000 Subject: mfd: Revert "mfd: Always assign of_node in mfd_add_device()" This reverts commit 68044bee13770918e0b28dd44aa98c889ec7558f. We've had confirmed reports of this patch causing unforeseen issues with existing MFD users. It has been agreed by the original author and myself that reversion is the best solution. Acked-by: Stephen Warren Signed-off-by: Lee Jones --- drivers/mfd/mfd-core.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c index 32e8d47d9002..267649244737 100644 --- a/drivers/mfd/mfd-core.c +++ b/drivers/mfd/mfd-core.c @@ -117,8 +117,6 @@ static int mfd_add_device(struct device *parent, int id, } } } - if (!pdev->dev.of_node) - pdev->dev.of_node = parent->of_node; if (cell->pdata_size) { ret = platform_device_add_data(pdev, -- cgit v1.2.2 From adc01fbd90079fe985213231c16f1ba0d3b6fdeb Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Sat, 21 Dec 2013 10:14:13 +0800 Subject: mfd: twl6040: Fix sparse non static symbol warning Fixes the following sparse warning: drivers/mfd/twl6040.c:89:20: warning: symbol 'twl6040_patch' was not declared. Should it be static? Signed-off-by: Wei Yongjun Signed-off-by: Lee Jones --- drivers/mfd/twl6040.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mfd/twl6040.c b/drivers/mfd/twl6040.c index 51b6df1a7949..75316fb33448 100644 --- a/drivers/mfd/twl6040.c +++ b/drivers/mfd/twl6040.c @@ -86,7 +86,7 @@ static struct reg_default twl6040_defaults[] = { { 0x2E, 0x00 }, /* REG_STATUS (ro) */ }; -struct reg_default twl6040_patch[] = { +static struct reg_default twl6040_patch[] = { /* Select I2C bus access to dual access registers */ { TWL6040_REG_ACCCTL, 0x09 }, }; -- cgit v1.2.2 From ae679c12e83bda92d8f639357f35a3f50f45c3a6 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Sat, 21 Dec 2013 15:50:16 +0530 Subject: mfd: max14577: Remove redundant of_match_ptr helper 'max14577_dt_match' is always compiled in. Hence the helper macro is not needed. Signed-off-by: Sachin Kamat Signed-off-by: Lee Jones --- drivers/mfd/max14577.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mfd/max14577.c b/drivers/mfd/max14577.c index a5e1c370c609..ac514fb2b877 100644 --- a/drivers/mfd/max14577.c +++ b/drivers/mfd/max14577.c @@ -221,7 +221,7 @@ static struct i2c_driver max14577_i2c_driver = { .name = "max14577", .owner = THIS_MODULE, .pm = &max14577_pm, - .of_match_table = of_match_ptr(max14577_dt_match), + .of_match_table = max14577_dt_match, }, .probe = max14577_i2c_probe, .remove = max14577_i2c_remove, -- cgit v1.2.2 From 39fed00f0b91f4ee595ac719f3bc2d226ed111b9 Mon Sep 17 00:00:00 2001 From: Tushar Behera Date: Thu, 26 Dec 2013 15:49:00 +0530 Subject: mfd: sec-core: Add cells for S5M8767-clocks S5M8767 chip has 3 crystal oscillators running at 32KHz. These are supported by s2mps11-clk driver. Signed-off-by: Tushar Behera Reviewed-by: Tomasz Figa Signed-off-by: Lee Jones --- drivers/mfd/sec-core.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mfd/sec-core.c b/drivers/mfd/sec-core.c index 56615af42a28..e4671088f075 100644 --- a/drivers/mfd/sec-core.c +++ b/drivers/mfd/sec-core.c @@ -56,7 +56,9 @@ static const struct mfd_cell s5m8767_devs[] = { .name = "s5m8767-pmic", }, { .name = "s5m-rtc", - }, + }, { + .name = "s5m8767-clk", + } }; static const struct mfd_cell s2mps11_devs[] = { -- cgit v1.2.2 From 754fa7bc9852f17d3c79b93747b643e1665ce0de Mon Sep 17 00:00:00 2001 From: Danke Xie Date: Mon, 23 Dec 2013 19:11:46 +0200 Subject: mfd: twl6030: Fix endianness problem in IRQ handler The current TWL 6030 IRQ handler assumes little endianness. This change makes it endian-neutral. Signed-off-by: Danke Xie Signed-off-by: Taras Kondratiuk Signed-off-by: Lee Jones --- drivers/mfd/twl6030-irq.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/twl6030-irq.c b/drivers/mfd/twl6030-irq.c index 517eda832f79..18a607e2ca06 100644 --- a/drivers/mfd/twl6030-irq.c +++ b/drivers/mfd/twl6030-irq.c @@ -176,8 +176,9 @@ static irqreturn_t twl6030_irq_thread(int irq, void *data) int i, ret; union { u8 bytes[4]; - u32 int_sts; + __le32 int_sts; } sts; + u32 int_sts; /* sts.int_sts converted to CPU endianness */ struct twl6030_irq *pdata = data; /* read INT_STS_A, B and C in one shot using a burst read */ @@ -196,8 +197,9 @@ static irqreturn_t twl6030_irq_thread(int irq, void *data) if (sts.bytes[2] & 0x10) sts.bytes[2] |= 0x08; - for (i = 0; sts.int_sts; sts.int_sts >>= 1, i++) - if (sts.int_sts & 0x1) { + int_sts = le32_to_cpu(sts.int_sts); + for (i = 0; int_sts; int_sts >>= 1, i++) + if (int_sts & 0x1) { int module_irq = irq_find_mapping(pdata->irq_domain, pdata->irq_mapping_tbl[i]); -- cgit v1.2.2 From 01c3f110f3e2557212925c041d961816a4c6fc63 Mon Sep 17 00:00:00 2001 From: Manish Badarkhe Date: Sun, 22 Dec 2013 23:18:49 +0530 Subject: mfd: max8997: Use "IS_ENABLED(CONFIG_OF)" for DT code. Instead of "#if define CONFIG_OF" use "IS_ENABLED(CONFIG_OF)" option for DT code to avoid if-deffery in code. Signed-off-by: Manish Badarkhe Signed-off-by: Lee Jones --- drivers/mfd/max8997.c | 14 ++------------ 1 file changed, 2 insertions(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/max8997.c b/drivers/mfd/max8997.c index 10141698ff94..be88a3bf7b85 100644 --- a/drivers/mfd/max8997.c +++ b/drivers/mfd/max8997.c @@ -133,7 +133,6 @@ int max8997_update_reg(struct i2c_client *i2c, u8 reg, u8 val, u8 mask) } EXPORT_SYMBOL_GPL(max8997_update_reg); -#ifdef CONFIG_OF /* * Only the common platform data elements for max8997 are parsed here from the * device tree. Other sub-modules of max8997 such as pmic, rtc and others have @@ -164,24 +163,15 @@ static struct max8997_platform_data *max8997_i2c_parse_dt_pdata( return pd; } -#else -static struct max8997_platform_data *max8997_i2c_parse_dt_pdata( - struct device *dev) -{ - return 0; -} -#endif static inline int max8997_i2c_get_driver_data(struct i2c_client *i2c, const struct i2c_device_id *id) { -#ifdef CONFIG_OF - if (i2c->dev.of_node) { + if (IS_ENABLED(CONFIG_OF) && i2c->dev.of_node) { const struct of_device_id *match; match = of_match_node(max8997_pmic_dt_match, i2c->dev.of_node); return (int)match->data; } -#endif return (int)id->driver_data; } @@ -203,7 +193,7 @@ static int max8997_i2c_probe(struct i2c_client *i2c, max8997->type = max8997_i2c_get_driver_data(i2c, id); max8997->irq = i2c->irq; - if (max8997->dev->of_node) { + if (IS_ENABLED(CONFIG_OF) && max8997->dev->of_node) { pdata = max8997_i2c_parse_dt_pdata(max8997->dev); if (IS_ERR(pdata)) return PTR_ERR(pdata); -- cgit v1.2.2 From 4d1d99807ae6a291faf3ac0732257a56d93598ed Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Fri, 3 Jan 2014 00:40:29 +0100 Subject: mfd: sta2x11-mfd: Use named constants for pci_power_t values If nothing more than to improve code readability. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // @@ expression pdev; @@ pci_set_power_state(pdev, - 0 + PCI_D0 ) // Signed-off-by: Julia Lawall Signed-off-by: Lee Jones --- drivers/mfd/sta2x11-mfd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mfd/sta2x11-mfd.c b/drivers/mfd/sta2x11-mfd.c index 0d42e40adb98..5b72db07d9de 100644 --- a/drivers/mfd/sta2x11-mfd.c +++ b/drivers/mfd/sta2x11-mfd.c @@ -529,7 +529,7 @@ static int sta2x11_mfd_resume(struct pci_dev *pdev) { int err; - pci_set_power_state(pdev, 0); + pci_set_power_state(pdev, PCI_D0); err = pci_enable_device(pdev); if (err) return err; -- cgit v1.2.2 From 3b1ba0cbcc1bc16b39dbd6cc4585a1d365f351f3 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Tue, 7 Jan 2014 11:57:18 +0530 Subject: gpio: lp3943: Remove redundant of_match_ptr helper 'lp3943_gpio_of_match' is always compiled in. Hence the helper macro is not needed. Signed-off-by: Sachin Kamat Acked-by: Linus Walleij Signed-off-by: Lee Jones --- drivers/gpio/gpio-lp3943.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpio/gpio-lp3943.c b/drivers/gpio/gpio-lp3943.c index 7b8db88ebb7b..a0341c92bcb4 100644 --- a/drivers/gpio/gpio-lp3943.c +++ b/drivers/gpio/gpio-lp3943.c @@ -231,7 +231,7 @@ static struct platform_driver lp3943_gpio_driver = { .driver = { .name = "lp3943-gpio", .owner = THIS_MODULE, - .of_match_table = of_match_ptr(lp3943_gpio_of_match), + .of_match_table = lp3943_gpio_of_match, }, }; module_platform_driver(lp3943_gpio_driver); -- cgit v1.2.2 From 76a0775d46da052f123b8598a3dfc3b330b8de4f Mon Sep 17 00:00:00 2001 From: Roger Quadros Date: Wed, 8 Jan 2014 12:45:33 +0530 Subject: mfd: omap-usb-tll: Don't hold lock during pm_runtime_get/put_sync() pm_runtime_get/put_sync() can sleep so don't hold spinlock while calling them. This patch prevents a BUG() during system suspend when CONFIG_DEBUG_ATOMIC_SLEEP is enabled. Bug is present in Kernel versions v3.9 onwards. Reported-by: Tomi Valkeinen Signed-off-by: Roger Quadros Tested-by: Tomi Valkeinen Signed-off-by: Lee Jones --- drivers/mfd/omap-usb-tll.c | 36 ++++++++++++------------------------ 1 file changed, 12 insertions(+), 24 deletions(-) (limited to 'drivers') diff --git a/drivers/mfd/omap-usb-tll.c b/drivers/mfd/omap-usb-tll.c index ee7468c1cb60..5ee50f779ef6 100644 --- a/drivers/mfd/omap-usb-tll.c +++ b/drivers/mfd/omap-usb-tll.c @@ -333,21 +333,17 @@ int omap_tll_init(struct usbhs_omap_platform_data *pdata) unsigned reg; struct usbtll_omap *tll; - spin_lock(&tll_lock); - - if (!tll_dev) { - spin_unlock(&tll_lock); + if (!tll_dev) return -ENODEV; - } - tll = dev_get_drvdata(tll_dev); + pm_runtime_get_sync(tll_dev); + spin_lock(&tll_lock); + tll = dev_get_drvdata(tll_dev); needs_tll = false; for (i = 0; i < tll->nch; i++) needs_tll |= omap_usb_mode_needs_tll(pdata->port_mode[i]); - pm_runtime_get_sync(tll_dev); - if (needs_tll) { void __iomem *base = tll->base; @@ -398,9 +394,8 @@ int omap_tll_init(struct usbhs_omap_platform_data *pdata) } } - pm_runtime_put_sync(tll_dev); - spin_unlock(&tll_lock); + pm_runtime_put_sync(tll_dev); return 0; } @@ -411,17 +406,14 @@ int omap_tll_enable(struct usbhs_omap_platform_data *pdata) int i; struct usbtll_omap *tll; - spin_lock(&tll_lock); - - if (!tll_dev) { - spin_unlock(&tll_lock); + if (!tll_dev) return -ENODEV; - } - - tll = dev_get_drvdata(tll_dev); pm_runtime_get_sync(tll_dev); + spin_lock(&tll_lock); + tll = dev_get_drvdata(tll_dev); + for (i = 0; i < tll->nch; i++) { if (omap_usb_mode_needs_tll(pdata->port_mode[i])) { int r; @@ -448,13 +440,10 @@ int omap_tll_disable(struct usbhs_omap_platform_data *pdata) int i; struct usbtll_omap *tll; - spin_lock(&tll_lock); - - if (!tll_dev) { - spin_unlock(&tll_lock); + if (!tll_dev) return -ENODEV; - } + spin_lock(&tll_lock); tll = dev_get_drvdata(tll_dev); for (i = 0; i < tll->nch; i++) { @@ -464,9 +453,8 @@ int omap_tll_disable(struct usbhs_omap_platform_data *pdata) } } - pm_runtime_put_sync(tll_dev); - spin_unlock(&tll_lock); + pm_runtime_put_sync(tll_dev); return 0; } -- cgit v1.2.2 From 02915661dbb91b25b621ab3f387ab55311bded7f Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Thu, 9 Jan 2014 11:53:54 +0000 Subject: mfd: wm5110: Add register patch for rev D chip Evaluation of revision D of WM5110 suggests updates to the register patch for optimal performance. For the sake of clarity rev C of the chip does not require a register patch. Signed-off-by: Charles Keepax Signed-off-by: Lee Jones --- drivers/mfd/wm5110-tables.c | 30 +++++++++++++++++++++++++++++- 1 file changed, 29 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mfd/wm5110-tables.c b/drivers/mfd/wm5110-tables.c index 8dc49ec3b246..24ec464379e4 100644 --- a/drivers/mfd/wm5110-tables.c +++ b/drivers/mfd/wm5110-tables.c @@ -224,6 +224,31 @@ static const struct reg_default wm5110_revb_patch[] = { { 0x80, 0x0 }, }; +static const struct reg_default wm5110_revd_patch[] = { + { 0x80, 0x3 }, + { 0x80, 0x3 }, + { 0x393, 0x27 }, + { 0x394, 0x27 }, + { 0x395, 0x27 }, + { 0x396, 0x27 }, + { 0x397, 0x27 }, + { 0x398, 0x26 }, + { 0x221, 0x90 }, + { 0x211, 0x8 }, + { 0x36c, 0x1fb }, + { 0x26e, 0x64 }, + { 0x26f, 0xea }, + { 0x270, 0x1f16 }, + { 0x51b, 0x1 }, + { 0x55b, 0x1 }, + { 0x59b, 0x1 }, + { 0x4f0, 0x633 }, + { 0x441, 0xc059 }, + { 0x209, 0x27 }, + { 0x80, 0x0 }, + { 0x80, 0x0 }, +}; + /* We use a function so we can use ARRAY_SIZE() */ int wm5110_patch(struct arizona *arizona) { @@ -236,7 +261,10 @@ int wm5110_patch(struct arizona *arizona) return regmap_register_patch(arizona->regmap, wm5110_revb_patch, ARRAY_SIZE(wm5110_revb_patch)); - + case 3: + return regmap_register_patch(arizona->regmap, + wm5110_revd_patch, + ARRAY_SIZE(wm5110_revd_patch)); default: return 0; } -- cgit v1.2.2