diff options
| author | Margarita Olaya <magi@slimlogic.co.uk> | 2011-06-09 15:50:00 -0400 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2011-07-31 17:28:22 -0400 |
| commit | 36e52873c6393b569f2befcdd1847929211892b8 (patch) | |
| tree | dbc25ce026ec1bfe69702766048db78c5e7e3702 | |
| parent | 8504d638041d50901b8bfba4fe646bd0bbb5cbb9 (diff) | |
mfd: tps65912: Add new mfd device
The tps65912 chip is a power management IC. It contains the following
components:
- Regulators
- GPIO controller
The core driver is registered as a platform driver, it provides communication
through I2C and SPI interfaces.
Signed-off-by: Margarita Olaya Cabrera <magi@slimlogic.co.uk>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| -rw-r--r-- | drivers/mfd/Kconfig | 22 | ||||
| -rw-r--r-- | drivers/mfd/Makefile | 4 | ||||
| -rw-r--r-- | drivers/mfd/tps65912-core.c | 164 | ||||
| -rw-r--r-- | drivers/mfd/tps65912-i2c.c | 139 | ||||
| -rw-r--r-- | drivers/mfd/tps65912-spi.c | 142 | ||||
| -rw-r--r-- | include/linux/mfd/tps65912.h | 321 |
6 files changed, 792 insertions, 0 deletions
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 1e2c9f03629b..f94036a4f33d 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig | |||
| @@ -171,6 +171,28 @@ config MFD_TPS6586X | |||
| 171 | This driver can also be built as a module. If so, the module | 171 | This driver can also be built as a module. If so, the module |
| 172 | will be called tps6586x. | 172 | will be called tps6586x. |
| 173 | 173 | ||
| 174 | config MFD_TPS65912 | ||
| 175 | bool "TPS65912 PMIC" | ||
| 176 | depends on GPIOLIB | ||
| 177 | |||
| 178 | config MFD_TPS65912_I2C | ||
| 179 | bool "TPS95612 Power Management chip with I2C" | ||
| 180 | select MFD_CORE | ||
| 181 | select MFD_TPS65912 | ||
| 182 | depends on I2C=y && GPIOLIB | ||
| 183 | help | ||
| 184 | If you say yes here you get support for the TPS65912 series of | ||
| 185 | PM chips with I2C interface. | ||
| 186 | |||
| 187 | config MFD_TPS65912_SPI | ||
| 188 | bool "TPS65912 Power Management chip with SPI" | ||
| 189 | select MFD_CORE | ||
| 190 | select MFD_TPS65912 | ||
| 191 | depends on SPI_MASTER && GPIOLIB | ||
| 192 | help | ||
| 193 | If you say yes here you get support for the TPS65912 series of | ||
| 194 | PM chips with SPI interface. | ||
| 195 | |||
| 174 | config MENELAUS | 196 | config MENELAUS |
| 175 | bool "Texas Instruments TWL92330/Menelaus PM chip" | 197 | bool "Texas Instruments TWL92330/Menelaus PM chip" |
| 176 | depends on I2C=y && ARCH_OMAP2 | 198 | depends on I2C=y && ARCH_OMAP2 |
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 0889f53c8b02..c9925e5dad99 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile | |||
| @@ -36,6 +36,10 @@ obj-$(CONFIG_MFD_WM8994) += wm8994-core.o wm8994-irq.o | |||
| 36 | obj-$(CONFIG_TPS6105X) += tps6105x.o | 36 | obj-$(CONFIG_TPS6105X) += tps6105x.o |
| 37 | obj-$(CONFIG_TPS65010) += tps65010.o | 37 | obj-$(CONFIG_TPS65010) += tps65010.o |
| 38 | obj-$(CONFIG_TPS6507X) += tps6507x.o | 38 | obj-$(CONFIG_TPS6507X) += tps6507x.o |
| 39 | tps65912-objs := tps65912-core.o | ||
| 40 | obj-$(CONFIG_MFD_TPS65912) += tps65912.o | ||
| 41 | obj-$(CONFIG_MFD_TPS65912_I2C) += tps65912-i2c.o | ||
| 42 | obj-$(CONFIG_MFD_TPS65912_SPI) += tps65912-spi.o | ||
| 39 | obj-$(CONFIG_MENELAUS) += menelaus.o | 43 | obj-$(CONFIG_MENELAUS) += menelaus.o |
| 40 | 44 | ||
| 41 | obj-$(CONFIG_TWL4030_CORE) += twl-core.o twl4030-irq.o twl6030-irq.o | 45 | obj-$(CONFIG_TWL4030_CORE) += twl-core.o twl4030-irq.o twl6030-irq.o |
diff --git a/drivers/mfd/tps65912-core.c b/drivers/mfd/tps65912-core.c new file mode 100644 index 000000000000..10baf7655542 --- /dev/null +++ b/drivers/mfd/tps65912-core.c | |||
| @@ -0,0 +1,164 @@ | |||
| 1 | /* | ||
| 2 | * tps65912-core.c -- TI TPS65912x | ||
| 3 | * | ||
| 4 | * Copyright 2011 Texas Instruments Inc. | ||
| 5 | * | ||
| 6 | * Author: Margarita Olaya Cabrera <magi@slimlogic.co.uk> | ||
| 7 | * | ||
| 8 | * This program is free software; you can redistribute it and/or modify it | ||
| 9 | * under the terms of the GNU General Public License as published by the | ||
| 10 | * Free Software Foundation; either version 2 of the License, or (at your | ||
| 11 | * option) any later version. | ||
| 12 | * | ||
| 13 | * This driver is based on wm8350 implementation. | ||
| 14 | */ | ||
| 15 | |||
| 16 | #include <linux/module.h> | ||
| 17 | #include <linux/moduleparam.h> | ||
| 18 | #include <linux/init.h> | ||
| 19 | #include <linux/slab.h> | ||
| 20 | #include <linux/gpio.h> | ||
| 21 | #include <linux/mfd/core.h> | ||
| 22 | #include <linux/mfd/tps65912.h> | ||
| 23 | |||
| 24 | static struct mfd_cell tps65912s[] = { | ||
| 25 | { | ||
| 26 | .name = "tps65912-pmic", | ||
| 27 | }, | ||
| 28 | }; | ||
| 29 | |||
| 30 | int tps65912_set_bits(struct tps65912 *tps65912, u8 reg, u8 mask) | ||
| 31 | { | ||
| 32 | u8 data; | ||
| 33 | int err; | ||
| 34 | |||
| 35 | mutex_lock(&tps65912->io_mutex); | ||
| 36 | |||
| 37 | err = tps65912->read(tps65912, reg, 1, &data); | ||
| 38 | if (err) { | ||
| 39 | dev_err(tps65912->dev, "Read from reg 0x%x failed\n", reg); | ||
| 40 | goto out; | ||
| 41 | } | ||
| 42 | |||
| 43 | data |= mask; | ||
| 44 | err = tps65912->write(tps65912, reg, 1, &data); | ||
| 45 | if (err) | ||
| 46 | dev_err(tps65912->dev, "Write to reg 0x%x failed\n", reg); | ||
| 47 | |||
| 48 | out: | ||
| 49 | mutex_unlock(&tps65912->io_mutex); | ||
| 50 | return err; | ||
| 51 | } | ||
| 52 | EXPORT_SYMBOL_GPL(tps65912_set_bits); | ||
| 53 | |||
| 54 | int tps65912_clear_bits(struct tps65912 *tps65912, u8 reg, u8 mask) | ||
| 55 | { | ||
| 56 | u8 data; | ||
| 57 | int err; | ||
| 58 | |||
| 59 | mutex_lock(&tps65912->io_mutex); | ||
| 60 | err = tps65912->read(tps65912, reg, 1, &data); | ||
| 61 | if (err) { | ||
| 62 | dev_err(tps65912->dev, "Read from reg 0x%x failed\n", reg); | ||
| 63 | goto out; | ||
| 64 | } | ||
| 65 | |||
| 66 | data &= ~mask; | ||
| 67 | err = tps65912->write(tps65912, reg, 1, &data); | ||
| 68 | if (err) | ||
| 69 | dev_err(tps65912->dev, "Write to reg 0x%x failed\n", reg); | ||
| 70 | |||
| 71 | out: | ||
| 72 | mutex_unlock(&tps65912->io_mutex); | ||
| 73 | return err; | ||
| 74 | } | ||
| 75 | EXPORT_SYMBOL_GPL(tps65912_clear_bits); | ||
| 76 | |||
| 77 | static inline int tps65912_read(struct tps65912 *tps65912, u8 reg) | ||
| 78 | { | ||
| 79 | u8 val; | ||
| 80 | int err; | ||
| 81 | |||
| 82 | err = tps65912->read(tps65912, reg, 1, &val); | ||
| 83 | if (err < 0) | ||
| 84 | return err; | ||
| 85 | |||
| 86 | return val; | ||
| 87 | } | ||
| 88 | |||
| 89 | static inline int tps65912_write(struct tps65912 *tps65912, u8 reg, u8 val) | ||
| 90 | { | ||
| 91 | return tps65912->write(tps65912, reg, 1, &val); | ||
| 92 | } | ||
| 93 | |||
| 94 | int tps65912_reg_read(struct tps65912 *tps65912, u8 reg) | ||
| 95 | { | ||
| 96 | int data; | ||
| 97 | |||
| 98 | mutex_lock(&tps65912->io_mutex); | ||
| 99 | |||
| 100 | data = tps65912_read(tps65912, reg); | ||
| 101 | if (data < 0) | ||
| 102 | dev_err(tps65912->dev, "Read from reg 0x%x failed\n", reg); | ||
| 103 | |||
| 104 | mutex_unlock(&tps65912->io_mutex); | ||
| 105 | return data; | ||
| 106 | } | ||
| 107 | EXPORT_SYMBOL_GPL(tps65912_reg_read); | ||
| 108 | |||
| 109 | int tps65912_reg_write(struct tps65912 *tps65912, u8 reg, u8 val) | ||
| 110 | { | ||
| 111 | int err; | ||
| 112 | |||
| 113 | mutex_lock(&tps65912->io_mutex); | ||
| 114 | |||
| 115 | err = tps65912_write(tps65912, reg, val); | ||
| 116 | if (err < 0) | ||
| 117 | dev_err(tps65912->dev, "Write for reg 0x%x failed\n", reg); | ||
| 118 | |||
| 119 | mutex_unlock(&tps65912->io_mutex); | ||
| 120 | return err; | ||
| 121 | } | ||
| 122 | EXPORT_SYMBOL_GPL(tps65912_reg_write); | ||
| 123 | |||
| 124 | int tps65912_device_init(struct tps65912 *tps65912) | ||
| 125 | { | ||
| 126 | struct tps65912_board *pmic_plat_data = tps65912->dev->platform_data; | ||
| 127 | int ret, dcdc_avs, value; | ||
| 128 | |||
| 129 | mutex_init(&tps65912->io_mutex); | ||
| 130 | dev_set_drvdata(tps65912->dev, tps65912); | ||
| 131 | |||
| 132 | dcdc_avs = (pmic_plat_data->is_dcdc1_avs << 0 | | ||
| 133 | pmic_plat_data->is_dcdc2_avs << 1 | | ||
| 134 | pmic_plat_data->is_dcdc3_avs << 2 | | ||
| 135 | pmic_plat_data->is_dcdc4_avs << 3); | ||
| 136 | if (dcdc_avs) { | ||
| 137 | tps65912->read(tps65912, TPS65912_I2C_SPI_CFG, 1, &value); | ||
| 138 | dcdc_avs |= value; | ||
| 139 | tps65912->write(tps65912, TPS65912_I2C_SPI_CFG, 1, &dcdc_avs); | ||
| 140 | } | ||
| 141 | |||
| 142 | ret = mfd_add_devices(tps65912->dev, -1, | ||
| 143 | tps65912s, ARRAY_SIZE(tps65912s), | ||
| 144 | NULL, 0); | ||
| 145 | if (ret < 0) | ||
| 146 | goto err; | ||
| 147 | |||
| 148 | return ret; | ||
| 149 | |||
| 150 | err: | ||
| 151 | mfd_remove_devices(tps65912->dev); | ||
| 152 | kfree(tps65912); | ||
| 153 | return ret; | ||
| 154 | } | ||
| 155 | |||
| 156 | void tps65912_device_exit(struct tps65912 *tps65912) | ||
| 157 | { | ||
| 158 | mfd_remove_devices(tps65912->dev); | ||
| 159 | kfree(tps65912); | ||
| 160 | } | ||
| 161 | |||
| 162 | MODULE_AUTHOR("Margarita Olaya <magi@slimlogic.co.uk>"); | ||
| 163 | MODULE_DESCRIPTION("TPS65912x chip family multi-function driver"); | ||
| 164 | MODULE_LICENSE("GPL"); | ||
diff --git a/drivers/mfd/tps65912-i2c.c b/drivers/mfd/tps65912-i2c.c new file mode 100644 index 000000000000..9ed123aa6624 --- /dev/null +++ b/drivers/mfd/tps65912-i2c.c | |||
| @@ -0,0 +1,139 @@ | |||
| 1 | /* | ||
| 2 | * tps65912-i2c.c -- I2C access for TI TPS65912x PMIC | ||
| 3 | * | ||
| 4 | * Copyright 2011 Texas Instruments Inc. | ||
| 5 | * | ||
| 6 | * Author: Margarita Olaya Cabrera <magi@slimlogic.co.uk> | ||
| 7 | * | ||
| 8 | * This program is free software; you can redistribute it and/or modify it | ||
| 9 | * under the terms of the GNU General Public License as published by the | ||
| 10 | * Free Software Foundation; either version 2 of the License, or (at your | ||
| 11 | * option) any later version. | ||
| 12 | * | ||
| 13 | * This driver is based on wm8350 implementation. | ||
| 14 | */ | ||
| 15 | |||
| 16 | #include <linux/module.h> | ||
| 17 | #include <linux/moduleparam.h> | ||
| 18 | #include <linux/init.h> | ||
| 19 | #include <linux/slab.h> | ||
| 20 | #include <linux/gpio.h> | ||
| 21 | #include <linux/i2c.h> | ||
| 22 | #include <linux/mfd/core.h> | ||
| 23 | #include <linux/mfd/tps65912.h> | ||
| 24 | |||
| 25 | static int tps65912_i2c_read(struct tps65912 *tps65912, u8 reg, | ||
| 26 | int bytes, void *dest) | ||
| 27 | { | ||
| 28 | struct i2c_client *i2c = tps65912->control_data; | ||
| 29 | struct i2c_msg xfer[2]; | ||
| 30 | int ret; | ||
| 31 | |||
| 32 | /* Write register */ | ||
| 33 | xfer[0].addr = i2c->addr; | ||
| 34 | xfer[0].flags = 0; | ||
| 35 | xfer[0].len = 1; | ||
| 36 | xfer[0].buf = ® | ||
| 37 | |||
| 38 | /* Read data */ | ||
| 39 | xfer[1].addr = i2c->addr; | ||
| 40 | xfer[1].flags = I2C_M_RD; | ||
| 41 | xfer[1].len = bytes; | ||
| 42 | xfer[1].buf = dest; | ||
| 43 | |||
| 44 | ret = i2c_transfer(i2c->adapter, xfer, 2); | ||
| 45 | if (ret == 2) | ||
| 46 | ret = 0; | ||
| 47 | else if (ret >= 0) | ||
| 48 | ret = -EIO; | ||
| 49 | return ret; | ||
| 50 | } | ||
| 51 | |||
| 52 | static int tps65912_i2c_write(struct tps65912 *tps65912, u8 reg, | ||
| 53 | int bytes, void *src) | ||
| 54 | { | ||
| 55 | struct i2c_client *i2c = tps65912->control_data; | ||
| 56 | /* we add 1 byte for device register */ | ||
| 57 | u8 msg[TPS6591X_MAX_REGISTER + 1]; | ||
| 58 | int ret; | ||
| 59 | |||
| 60 | if (bytes > (TPS6591X_MAX_REGISTER + 1)) | ||
| 61 | return -EINVAL; | ||
| 62 | |||
| 63 | msg[0] = reg; | ||
| 64 | memcpy(&msg[1], src, bytes); | ||
| 65 | |||
| 66 | ret = i2c_master_send(i2c, msg, bytes + 1); | ||
| 67 | if (ret < 0) | ||
| 68 | return ret; | ||
| 69 | if (ret != bytes + 1) | ||
| 70 | return -EIO; | ||
| 71 | |||
| 72 | return 0; | ||
| 73 | } | ||
| 74 | |||
| 75 | static int tps65912_i2c_probe(struct i2c_client *i2c, | ||
| 76 | const struct i2c_device_id *id) | ||
| 77 | { | ||
| 78 | struct tps65912 *tps65912; | ||
| 79 | |||
| 80 | tps65912 = kzalloc(sizeof(struct tps65912), GFP_KERNEL); | ||
| 81 | if (tps65912 == NULL) | ||
| 82 | return -ENOMEM; | ||
| 83 | |||
| 84 | i2c_set_clientdata(i2c, tps65912); | ||
| 85 | tps65912->dev = &i2c->dev; | ||
| 86 | tps65912->control_data = i2c; | ||
| 87 | tps65912->read = tps65912_i2c_read; | ||
| 88 | tps65912->write = tps65912_i2c_write; | ||
| 89 | |||
| 90 | return tps65912_device_init(tps65912); | ||
| 91 | } | ||
| 92 | |||
| 93 | static int tps65912_i2c_remove(struct i2c_client *i2c) | ||
| 94 | { | ||
| 95 | struct tps65912 *tps65912 = i2c_get_clientdata(i2c); | ||
| 96 | |||
| 97 | tps65912_device_exit(tps65912); | ||
| 98 | |||
| 99 | return 0; | ||
| 100 | } | ||
| 101 | |||
| 102 | static const struct i2c_device_id tps65912_i2c_id[] = { | ||
| 103 | {"tps65912", 0 }, | ||
| 104 | { } | ||
| 105 | }; | ||
| 106 | MODULE_DEVICE_TABLE(i2c, tps65912_i2c_id); | ||
| 107 | |||
| 108 | static struct i2c_driver tps65912_i2c_driver = { | ||
| 109 | .driver = { | ||
| 110 | .name = "tps65912", | ||
| 111 | .owner = THIS_MODULE, | ||
| 112 | }, | ||
| 113 | .probe = tps65912_i2c_probe, | ||
| 114 | .remove = tps65912_i2c_remove, | ||
| 115 | .id_table = tps65912_i2c_id, | ||
| 116 | }; | ||
| 117 | |||
| 118 | static int __init tps65912_i2c_init(void) | ||
| 119 | { | ||
| 120 | int ret; | ||
| 121 | |||
| 122 | ret = i2c_add_driver(&tps65912_i2c_driver); | ||
| 123 | if (ret != 0) | ||
| 124 | pr_err("Failed to register TPS65912 I2C driver: %d\n", ret); | ||
| 125 | |||
| 126 | return ret; | ||
| 127 | } | ||
| 128 | /* init early so consumer devices can complete system boot */ | ||
| 129 | subsys_initcall(tps65912_i2c_init); | ||
| 130 | |||
| 131 | static void __exit tps65912_i2c_exit(void) | ||
| 132 | { | ||
| 133 | i2c_del_driver(&tps65912_i2c_driver); | ||
| 134 | } | ||
| 135 | module_exit(tps65912_i2c_exit); | ||
| 136 | |||
| 137 | MODULE_AUTHOR("Margarita Olaya <magi@slimlogic.co.uk>"); | ||
| 138 | MODULE_DESCRIPTION("TPS6591x chip family multi-function driver"); | ||
| 139 | MODULE_LICENSE("GPL"); | ||
diff --git a/drivers/mfd/tps65912-spi.c b/drivers/mfd/tps65912-spi.c new file mode 100644 index 000000000000..6d71e0d25744 --- /dev/null +++ b/drivers/mfd/tps65912-spi.c | |||
| @@ -0,0 +1,142 @@ | |||
| 1 | /* | ||
| 2 | * tps65912-spi.c -- SPI access for TI TPS65912x PMIC | ||
| 3 | * | ||
| 4 | * Copyright 2011 Texas Instruments Inc. | ||
| 5 | * | ||
| 6 | * Author: Margarita Olaya Cabrera <magi@slimlogic.co.uk> | ||
| 7 | * | ||
| 8 | * This program is free software; you can redistribute it and/or modify it | ||
| 9 | * under the terms of the GNU General Public License as published by the | ||
| 10 | * Free Software Foundation; either version 2 of the License, or (at your | ||
| 11 | * option) any later version. | ||
| 12 | * | ||
| 13 | * This driver is based on wm8350 implementation. | ||
| 14 | */ | ||
| 15 | |||
| 16 | #include <linux/module.h> | ||
| 17 | #include <linux/moduleparam.h> | ||
| 18 | #include <linux/init.h> | ||
| 19 | #include <linux/slab.h> | ||
| 20 | #include <linux/gpio.h> | ||
| 21 | #include <linux/spi/spi.h> | ||
| 22 | #include <linux/mfd/core.h> | ||
| 23 | #include <linux/mfd/tps65912.h> | ||
| 24 | |||
| 25 | static int tps65912_spi_write(struct tps65912 *tps65912, u8 addr, | ||
| 26 | int bytes, void *src) | ||
| 27 | { | ||
| 28 | struct spi_device *spi = tps65912->control_data; | ||
| 29 | u8 *data = (u8 *) src; | ||
| 30 | int ret; | ||
| 31 | /* bit 23 is the read/write bit */ | ||
| 32 | unsigned long spi_data = 1 << 23 | addr << 15 | *data; | ||
| 33 | struct spi_transfer xfer; | ||
| 34 | struct spi_message msg; | ||
| 35 | u32 tx_buf, rx_buf; | ||
| 36 | |||
| 37 | tx_buf = spi_data; | ||
| 38 | rx_buf = 0; | ||
| 39 | |||
| 40 | xfer.tx_buf = &tx_buf; | ||
| 41 | xfer.rx_buf = NULL; | ||
| 42 | xfer.len = sizeof(unsigned long); | ||
| 43 | xfer.bits_per_word = 24; | ||
| 44 | |||
| 45 | spi_message_init(&msg); | ||
| 46 | spi_message_add_tail(&xfer, &msg); | ||
| 47 | |||
| 48 | ret = spi_sync(spi, &msg); | ||
| 49 | return ret; | ||
| 50 | } | ||
| 51 | |||
| 52 | static int tps65912_spi_read(struct tps65912 *tps65912, u8 addr, | ||
| 53 | int bytes, void *dest) | ||
| 54 | { | ||
| 55 | struct spi_device *spi = tps65912->control_data; | ||
| 56 | /* bit 23 is the read/write bit */ | ||
| 57 | unsigned long spi_data = 0 << 23 | addr << 15; | ||
| 58 | struct spi_transfer xfer; | ||
| 59 | struct spi_message msg; | ||
| 60 | int ret; | ||
| 61 | u8 *data = (u8 *) dest; | ||
| 62 | u32 tx_buf, rx_buf; | ||
| 63 | |||
| 64 | tx_buf = spi_data; | ||
| 65 | rx_buf = 0; | ||
| 66 | |||
| 67 | xfer.tx_buf = &tx_buf; | ||
| 68 | xfer.rx_buf = &rx_buf; | ||
| 69 | xfer.len = sizeof(unsigned long); | ||
| 70 | xfer.bits_per_word = 24; | ||
| 71 | |||
| 72 | spi_message_init(&msg); | ||
| 73 | spi_message_add_tail(&xfer, &msg); | ||
| 74 | |||
| 75 | if (spi == NULL) | ||
| 76 | return 0; | ||
| 77 | |||
| 78 | ret = spi_sync(spi, &msg); | ||
| 79 | if (ret == 0) | ||
| 80 | *data = (u8) (rx_buf & 0xFF); | ||
| 81 | return ret; | ||
| 82 | } | ||
| 83 | |||
| 84 | static int __devinit tps65912_spi_probe(struct spi_device *spi) | ||
| 85 | { | ||
| 86 | struct tps65912 *tps65912; | ||
| 87 | |||
| 88 | tps65912 = kzalloc(sizeof(struct tps65912), GFP_KERNEL); | ||
| 89 | if (tps65912 == NULL) | ||
| 90 | return -ENOMEM; | ||
| 91 | |||
| 92 | tps65912->dev = &spi->dev; | ||
| 93 | tps65912->control_data = spi; | ||
| 94 | tps65912->read = tps65912_spi_read; | ||
| 95 | tps65912->write = tps65912_spi_write; | ||
| 96 | |||
| 97 | spi_set_drvdata(spi, tps65912); | ||
| 98 | |||
| 99 | return tps65912_device_init(tps65912); | ||
| 100 | } | ||
| 101 | |||
| 102 | static int __devexit tps65912_spi_remove(struct spi_device *spi) | ||
| 103 | { | ||
| 104 | struct tps65912 *tps65912 = spi_get_drvdata(spi); | ||
| 105 | |||
| 106 | tps65912_device_exit(tps65912); | ||
| 107 | |||
| 108 | return 0; | ||
| 109 | } | ||
| 110 | |||
| 111 | static struct spi_driver tps65912_spi_driver = { | ||
| 112 | .driver = { | ||
| 113 | .name = "tps65912", | ||
| 114 | .bus = &spi_bus_type, | ||
| 115 | .owner = THIS_MODULE, | ||
| 116 | }, | ||
| 117 | .probe = tps65912_spi_probe, | ||
| 118 | .remove = __devexit_p(tps65912_spi_remove), | ||
| 119 | }; | ||
| 120 | |||
| 121 | static int __init tps65912_spi_init(void) | ||
| 122 | { | ||
| 123 | int ret; | ||
| 124 | |||
| 125 | ret = spi_register_driver(&tps65912_spi_driver); | ||
| 126 | if (ret != 0) | ||
| 127 | pr_err("Failed to register TPS65912 SPI driver: %d\n", ret); | ||
| 128 | |||
| 129 | return 0; | ||
| 130 | } | ||
| 131 | /* init early so consumer devices can complete system boot */ | ||
| 132 | subsys_initcall(tps65912_spi_init); | ||
| 133 | |||
| 134 | static void __exit tps65912_spi_exit(void) | ||
| 135 | { | ||
| 136 | spi_unregister_driver(&tps65912_spi_driver); | ||
| 137 | } | ||
| 138 | module_exit(tps65912_spi_exit); | ||
| 139 | |||
| 140 | MODULE_AUTHOR("Margarita Olaya <magi@slimlogic.co.uk>"); | ||
| 141 | MODULE_DESCRIPTION("SPI support for TPS65912 chip family mfd"); | ||
| 142 | MODULE_LICENSE("GPL"); | ||
diff --git a/include/linux/mfd/tps65912.h b/include/linux/mfd/tps65912.h new file mode 100644 index 000000000000..48d3b53316a9 --- /dev/null +++ b/include/linux/mfd/tps65912.h | |||
| @@ -0,0 +1,321 @@ | |||
| 1 | /* | ||
| 2 | * tps65912.h -- TI TPS6591x | ||
| 3 | * | ||
| 4 | * Copyright 2011 Texas Instruments Inc. | ||
| 5 | * | ||
| 6 | * Author: Margarita Olaya <magi@slimlogic.co.uk> | ||
| 7 | * | ||
| 8 | * This program is free software; you can redistribute it and/or modify it | ||
| 9 | * under the terms of the GNU General Public License as published by the | ||
| 10 | * Free Software Foundation; either version 2 of the License, or (at your | ||
| 11 | * option) any later version. | ||
| 12 | * | ||
| 13 | */ | ||
| 14 | |||
| 15 | #ifndef __LINUX_MFD_TPS65912_H | ||
| 16 | #define __LINUX_MFD_TPS65912_H | ||
| 17 | |||
| 18 | /* TPS regulator type list */ | ||
| 19 | #define REGULATOR_LDO 0 | ||
| 20 | #define REGULATOR_DCDC 1 | ||
| 21 | |||
| 22 | /* | ||
| 23 | * List of registers for TPS65912 | ||
| 24 | */ | ||
| 25 | |||
| 26 | #define TPS65912_DCDC1_CTRL 0x00 | ||
| 27 | #define TPS65912_DCDC2_CTRL 0x01 | ||
| 28 | #define TPS65912_DCDC3_CTRL 0x02 | ||
| 29 | #define TPS65912_DCDC4_CTRL 0x03 | ||
| 30 | #define TPS65912_DCDC1_OP 0x04 | ||
| 31 | #define TPS65912_DCDC1_AVS 0x05 | ||
| 32 | #define TPS65912_DCDC1_LIMIT 0x06 | ||
| 33 | #define TPS65912_DCDC2_OP 0x07 | ||
| 34 | #define TPS65912_DCDC2_AVS 0x08 | ||
| 35 | #define TPS65912_DCDC2_LIMIT 0x09 | ||
| 36 | #define TPS65912_DCDC3_OP 0x0A | ||
| 37 | #define TPS65912_DCDC3_AVS 0x0B | ||
| 38 | #define TPS65912_DCDC3_LIMIT 0x0C | ||
| 39 | #define TPS65912_DCDC4_OP 0x0D | ||
| 40 | #define TPS65912_DCDC4_AVS 0x0E | ||
| 41 | #define TPS65912_DCDC4_LIMIT 0x0F | ||
| 42 | #define TPS65912_LDO1_OP 0x10 | ||
| 43 | #define TPS65912_LDO1_AVS 0x11 | ||
| 44 | #define TPS65912_LDO1_LIMIT 0x12 | ||
| 45 | #define TPS65912_LDO2_OP 0x13 | ||
| 46 | #define TPS65912_LDO2_AVS 0x14 | ||
| 47 | #define TPS65912_LDO2_LIMIT 0x15 | ||
| 48 | #define TPS65912_LDO3_OP 0x16 | ||
| 49 | #define TPS65912_LDO3_AVS 0x17 | ||
| 50 | #define TPS65912_LDO3_LIMIT 0x18 | ||
| 51 | #define TPS65912_LDO4_OP 0x19 | ||
| 52 | #define TPS65912_LDO4_AVS 0x1A | ||
| 53 | #define TPS65912_LDO4_LIMIT 0x1B | ||
| 54 | #define TPS65912_LDO5 0x1C | ||
| 55 | #define TPS65912_LDO6 0x1D | ||
| 56 | #define TPS65912_LDO7 0x1E | ||
| 57 | #define TPS65912_LDO8 0x1F | ||
| 58 | #define TPS65912_LDO9 0x20 | ||
| 59 | #define TPS65912_LDO10 0x21 | ||
| 60 | #define TPS65912_THRM 0x22 | ||
| 61 | #define TPS65912_CLK32OUT 0x23 | ||
| 62 | #define TPS65912_DEVCTRL 0x24 | ||
| 63 | #define TPS65912_DEVCTRL2 0x25 | ||
| 64 | #define TPS65912_I2C_SPI_CFG 0x26 | ||
| 65 | #define TPS65912_KEEP_ON 0x27 | ||
| 66 | #define TPS65912_KEEP_ON2 0x28 | ||
| 67 | #define TPS65912_SET_OFF1 0x29 | ||
| 68 | #define TPS65912_SET_OFF2 0x2A | ||
| 69 | #define TPS65912_DEF_VOLT 0x2B | ||
| 70 | #define TPS65912_DEF_VOLT_MAPPING 0x2C | ||
| 71 | #define TPS65912_DISCHARGE 0x2D | ||
| 72 | #define TPS65912_DISCHARGE2 0x2E | ||
| 73 | #define TPS65912_EN1_SET1 0x2F | ||
| 74 | #define TPS65912_EN1_SET2 0x30 | ||
| 75 | #define TPS65912_EN2_SET1 0x31 | ||
| 76 | #define TPS65912_EN2_SET2 0x32 | ||
| 77 | #define TPS65912_EN3_SET1 0x33 | ||
| 78 | #define TPS65912_EN3_SET2 0x34 | ||
| 79 | #define TPS65912_EN4_SET1 0x35 | ||
| 80 | #define TPS65912_EN4_SET2 0x36 | ||
| 81 | #define TPS65912_PGOOD 0x37 | ||
| 82 | #define TPS65912_PGOOD2 0x38 | ||
| 83 | #define TPS65912_INT_STS 0x39 | ||
| 84 | #define TPS65912_INT_MSK 0x3A | ||
| 85 | #define TPS65912_INT_STS2 0x3B | ||
| 86 | #define TPS65912_INT_MSK2 0x3C | ||
| 87 | #define TPS65912_INT_STS3 0x3D | ||
| 88 | #define TPS65912_INT_MSK3 0x3E | ||
| 89 | #define TPS65912_INT_STS4 0x3F | ||
| 90 | #define TPS65912_INT_MSK4 0x40 | ||
| 91 | #define TPS65912_GPIO1 0x41 | ||
| 92 | #define TPS65912_GPIO2 0x42 | ||
| 93 | #define TPS65912_GPIO3 0x43 | ||
| 94 | #define TPS65912_GPIO4 0x44 | ||
| 95 | #define TPS65912_GPIO5 0x45 | ||
| 96 | #define TPS65912_VMON 0x46 | ||
| 97 | #define TPS65912_LEDA_CTRL1 0x47 | ||
| 98 | #define TPS65912_LEDA_CTRL2 0x48 | ||
| 99 | #define TPS65912_LEDA_CTRL3 0x49 | ||
| 100 | #define TPS65912_LEDA_CTRL4 0x4A | ||
| 101 | #define TPS65912_LEDA_CTRL5 0x4B | ||
| 102 | #define TPS65912_LEDA_CTRL6 0x4C | ||
| 103 | #define TPS65912_LEDA_CTRL7 0x4D | ||
| 104 | #define TPS65912_LEDA_CTRL8 0x4E | ||
| 105 | #define TPS65912_LEDB_CTRL1 0x4F | ||
| 106 | #define TPS65912_LEDB_CTRL2 0x50 | ||
| 107 | #define TPS65912_LEDB_CTRL3 0x51 | ||
| 108 | #define TPS65912_LEDB_CTRL4 0x52 | ||
| 109 | #define TPS65912_LEDB_CTRL5 0x53 | ||
| 110 | #define TPS65912_LEDB_CTRL6 0x54 | ||
| 111 | #define TPS65912_LEDB_CTRL7 0x55 | ||
| 112 | #define TPS65912_LEDB_CTRL8 0x56 | ||
| 113 | #define TPS65912_LEDC_CTRL1 0x57 | ||
| 114 | #define TPS65912_LEDC_CTRL2 0x58 | ||
| 115 | #define TPS65912_LEDC_CTRL3 0x59 | ||
| 116 | #define TPS65912_LEDC_CTRL4 0x5A | ||
| 117 | #define TPS65912_LEDC_CTRL5 0x5B | ||
| 118 | #define TPS65912_LEDC_CTRL6 0x5C | ||
| 119 | #define TPS65912_LEDC_CTRL7 0x5D | ||
| 120 | #define TPS65912_LEDC_CTRL8 0x5E | ||
| 121 | #define TPS65912_LED_RAMP_UP_TIME 0x5F | ||
| 122 | #define TPS65912_LED_RAMP_DOWN_TIME 0x60 | ||
| 123 | #define TPS65912_LED_SEQ_EN 0x61 | ||
| 124 | #define TPS65912_LOADSWITCH 0x62 | ||
| 125 | #define TPS65912_SPARE 0x63 | ||
| 126 | #define TPS65912_VERNUM 0x64 | ||
| 127 | #define TPS6591X_MAX_REGISTER 0x64 | ||
| 128 | |||
| 129 | /* IRQ Definitions */ | ||
| 130 | #define TPS65912_IRQ_PWRHOLD_F 0 | ||
| 131 | #define TPS65912_IRQ_VMON 1 | ||
| 132 | #define TPS65912_IRQ_PWRON 2 | ||
| 133 | #define TPS65912_IRQ_PWRON_LP 3 | ||
| 134 | #define TPS65912_IRQ_PWRHOLD_R 4 | ||
| 135 | #define TPS65912_IRQ_HOTDIE 5 | ||
| 136 | #define TPS65912_IRQ_GPIO1_R 6 | ||
| 137 | #define TPS65912_IRQ_GPIO1_F 7 | ||
| 138 | #define TPS65912_IRQ_GPIO2_R 8 | ||
| 139 | #define TPS65912_IRQ_GPIO2_F 9 | ||
| 140 | #define TPS65912_IRQ_GPIO3_R 10 | ||
| 141 | #define TPS65912_IRQ_GPIO3_F 11 | ||
| 142 | #define TPS65912_IRQ_GPIO4_R 12 | ||
| 143 | #define TPS65912_IRQ_GPIO4_F 13 | ||
| 144 | #define TPS65912_IRQ_GPIO5_R 14 | ||
| 145 | #define TPS65912_IRQ_GPIO5_F 15 | ||
| 146 | #define TPS65912_IRQ_PGOOD_DCDC1 16 | ||
| 147 | #define TPS65912_IRQ_PGOOD_DCDC2 17 | ||
| 148 | #define TPS65912_IRQ_PGOOD_DCDC3 18 | ||
| 149 | #define TPS65912_IRQ_PGOOD_DCDC4 19 | ||
| 150 | #define TPS65912_IRQ_PGOOD_LDO1 20 | ||
| 151 | #define TPS65912_IRQ_PGOOD_LDO2 21 | ||
| 152 | #define TPS65912_IRQ_PGOOD_LDO3 22 | ||
| 153 | #define TPS65912_IRQ_PGOOD_LDO4 23 | ||
| 154 | #define TPS65912_IRQ_PGOOD_LDO5 24 | ||
| 155 | #define TPS65912_IRQ_PGOOD_LDO6 25 | ||
| 156 | #define TPS65912_IRQ_PGOOD_LDO7 26 | ||
| 157 | #define TPS65912_IRQ_PGOOD_LD08 27 | ||
| 158 | #define TPS65912_IRQ_PGOOD_LDO9 28 | ||
| 159 | #define TPS65912_IRQ_PGOOD_LDO10 29 | ||
| 160 | |||
| 161 | #define TPS65912_NUM_IRQ 30 | ||
| 162 | |||
| 163 | /* GPIO 1 and 2 Register Definitions */ | ||
| 164 | #define GPIO_SLEEP_MASK 0x80 | ||
| 165 | #define GPIO_SLEEP_SHIFT 7 | ||
| 166 | #define GPIO_DEB_MASK 0x10 | ||
| 167 | #define GPIO_DEB_SHIFT 4 | ||
| 168 | #define GPIO_CFG_MASK 0x04 | ||
| 169 | #define GPIO_CFG_SHIFT 2 | ||
| 170 | #define GPIO_STS_MASK 0x02 | ||
| 171 | #define GPIO_STS_SHIFT 1 | ||
| 172 | #define GPIO_SET_MASK 0x01 | ||
| 173 | #define GPIO_SET_SHIFT 0 | ||
| 174 | |||
| 175 | /* GPIO 3 Register Definitions */ | ||
| 176 | #define GPIO3_SLEEP_MASK 0x80 | ||
| 177 | #define GPIO3_SLEEP_SHIFT 7 | ||
| 178 | #define GPIO3_SEL_MASK 0x40 | ||
| 179 | #define GPIO3_SEL_SHIFT 6 | ||
| 180 | #define GPIO3_ODEN_MASK 0x20 | ||
| 181 | #define GPIO3_ODEN_SHIFT 5 | ||
| 182 | #define GPIO3_DEB_MASK 0x10 | ||
| 183 | #define GPIO3_DEB_SHIFT 4 | ||
| 184 | #define GPIO3_PDEN_MASK 0x08 | ||
| 185 | #define GPIO3_PDEN_SHIFT 3 | ||
| 186 | #define GPIO3_CFG_MASK 0x04 | ||
| 187 | #define GPIO3_CFG_SHIFT 2 | ||
| 188 | #define GPIO3_STS_MASK 0x02 | ||
| 189 | #define GPIO3_STS_SHIFT 1 | ||
| 190 | #define GPIO3_SET_MASK 0x01 | ||
| 191 | #define GPIO3_SET_SHIFT 0 | ||
| 192 | |||
| 193 | /* GPIO 4 Register Definitions */ | ||
| 194 | #define GPIO4_SLEEP_MASK 0x80 | ||
| 195 | #define GPIO4_SLEEP_SHIFT 7 | ||
| 196 | #define GPIO4_SEL_MASK 0x40 | ||
| 197 | #define GPIO4_SEL_SHIFT 6 | ||
| 198 | #define GPIO4_ODEN_MASK 0x20 | ||
| 199 | #define GPIO4_ODEN_SHIFT 5 | ||
| 200 | #define GPIO4_DEB_MASK 0x10 | ||
| 201 | #define GPIO4_DEB_SHIFT 4 | ||
| 202 | #define GPIO4_PDEN_MASK 0x08 | ||
| 203 | #define GPIO4_PDEN_SHIFT 3 | ||
| 204 | #define GPIO4_CFG_MASK 0x04 | ||
| 205 | #define GPIO4_CFG_SHIFT 2 | ||
| 206 | #define GPIO4_STS_MASK 0x02 | ||
| 207 | #define GPIO4_STS_SHIFT 1 | ||
| 208 | #define GPIO4_SET_MASK 0x01 | ||
| 209 | #define GPIO4_SET_SHIFT 0 | ||
| 210 | |||
| 211 | /* Register THERM (0x80) register.RegisterDescription */ | ||
| 212 | #define THERM_THERM_HD_MASK 0x20 | ||
| 213 | #define THERM_THERM_HD_SHIFT 5 | ||
| 214 | #define THERM_THERM_TS_MASK 0x10 | ||
| 215 | #define THERM_THERM_TS_SHIFT 4 | ||
| 216 | #define THERM_THERM_HDSEL_MASK 0x0C | ||
| 217 | #define THERM_THERM_HDSEL_SHIFT 2 | ||
| 218 | #define THERM_RSVD1_MASK 0x02 | ||
| 219 | #define THERM_RSVD1_SHIFT 1 | ||
| 220 | #define THERM_THERM_STATE_MASK 0x01 | ||
| 221 | #define THERM_THERM_STATE_SHIFT 0 | ||
| 222 | |||
| 223 | /* Register DCDCCTRL1 register.RegisterDescription */ | ||
| 224 | #define DCDCCTRL_VCON_ENABLE_MASK 0x80 | ||
| 225 | #define DCDCCTRL_VCON_ENABLE_SHIFT 7 | ||
| 226 | #define DCDCCTRL_VCON_RANGE1_MASK 0x40 | ||
| 227 | #define DCDCCTRL_VCON_RANGE1_SHIFT 6 | ||
| 228 | #define DCDCCTRL_VCON_RANGE0_MASK 0x20 | ||
| 229 | #define DCDCCTRL_VCON_RANGE0_SHIFT 5 | ||
| 230 | #define DCDCCTRL_TSTEP2_MASK 0x10 | ||
| 231 | #define DCDCCTRL_TSTEP2_SHIFT 4 | ||
| 232 | #define DCDCCTRL_TSTEP1_MASK 0x08 | ||
| 233 | #define DCDCCTRL_TSTEP1_SHIFT 3 | ||
| 234 | #define DCDCCTRL_TSTEP0_MASK 0x04 | ||
| 235 | #define DCDCCTRL_TSTEP0_SHIFT 2 | ||
| 236 | #define DCDCCTRL_DCDC1_MODE_MASK 0x02 | ||
| 237 | #define DCDCCTRL_DCDC1_MODE_SHIFT 1 | ||
| 238 | |||
| 239 | /* Register DCDCCTRL2 and DCDCCTRL3 register.RegisterDescription */ | ||
| 240 | #define DCDCCTRL_TSTEP2_MASK 0x10 | ||
| 241 | #define DCDCCTRL_TSTEP2_SHIFT 4 | ||
| 242 | #define DCDCCTRL_TSTEP1_MASK 0x08 | ||
| 243 | #define DCDCCTRL_TSTEP1_SHIFT 3 | ||
| 244 | #define DCDCCTRL_TSTEP0_MASK 0x04 | ||
| 245 | #define DCDCCTRL_TSTEP0_SHIFT 2 | ||
| 246 | #define DCDCCTRL_DCDC_MODE_MASK 0x02 | ||
| 247 | #define DCDCCTRL_DCDC_MODE_SHIFT 1 | ||
| 248 | #define DCDCCTRL_RSVD0_MASK 0x01 | ||
| 249 | #define DCDCCTRL_RSVD0_SHIFT 0 | ||
| 250 | |||
| 251 | /* Register DCDCCTRL4 register.RegisterDescription */ | ||
| 252 | #define DCDCCTRL_RAMP_TIME_MASK 0x01 | ||
| 253 | #define DCDCCTRL_RAMP_TIME_SHIFT 0 | ||
| 254 | |||
| 255 | /* Register DCDCx_AVS */ | ||
| 256 | #define DCDC_AVS_ENABLE_MASK 0x80 | ||
| 257 | #define DCDC_AVS_ENABLE_SHIFT 7 | ||
| 258 | #define DCDC_AVS_ECO_MASK 0x40 | ||
| 259 | #define DCDC_AVS_ECO_SHIFT 6 | ||
| 260 | |||
| 261 | /* Register DCDCx_LIMIT */ | ||
| 262 | #define DCDC_LIMIT_RANGE_MASK 0xC0 | ||
| 263 | #define DCDC_LIMIT_RANGE_SHIFT 6 | ||
| 264 | #define DCDC_LIMIT_MAX_SEL_MASK 0x3F | ||
| 265 | #define DCDC_LIMIT_MAX_SEL_SHIFT 0 | ||
| 266 | |||
| 267 | /** | ||
| 268 | * struct tps65912_board | ||
| 269 | * Board platform dat may be used to initialize regulators. | ||
| 270 | */ | ||
| 271 | struct tps65912_board { | ||
| 272 | int is_dcdc1_avs; | ||
| 273 | int is_dcdc2_avs; | ||
| 274 | int is_dcdc3_avs; | ||
| 275 | int is_dcdc4_avs; | ||
| 276 | struct regulator_init_data *tps65912_pmic_init_data; | ||
| 277 | }; | ||
| 278 | |||
| 279 | /** | ||
| 280 | * struct tps65912 - tps65912 sub-driver chip access routines | ||
| 281 | */ | ||
| 282 | |||
| 283 | struct tps65912 { | ||
| 284 | struct device *dev; | ||
| 285 | /* for read/write acces */ | ||
| 286 | struct mutex io_mutex; | ||
| 287 | |||
| 288 | /* For device IO interfaces: I2C or SPI */ | ||
| 289 | void *control_data; | ||
| 290 | |||
| 291 | int (*read)(struct tps65912 *tps65912, u8 reg, int size, void *dest); | ||
| 292 | int (*write)(struct tps65912 *tps65912, u8 reg, int size, void *src); | ||
| 293 | |||
| 294 | /* Client devices */ | ||
| 295 | struct tps65912_pmic *pmic; | ||
| 296 | |||
| 297 | /* GPIO Handling */ | ||
| 298 | struct gpio_chip gpio; | ||
| 299 | |||
| 300 | /* IRQ Handling */ | ||
| 301 | struct mutex irq_lock; | ||
| 302 | int chip_irq; | ||
| 303 | int irq_base; | ||
| 304 | int irq_num; | ||
| 305 | u32 irq_mask; | ||
| 306 | }; | ||
| 307 | |||
| 308 | struct tps65912_platform_data { | ||
| 309 | int irq_base; | ||
| 310 | }; | ||
| 311 | |||
| 312 | unsigned int tps_chip(void); | ||
| 313 | |||
| 314 | int tps65912_set_bits(struct tps65912 *tps65912, u8 reg, u8 mask); | ||
| 315 | int tps65912_clear_bits(struct tps65912 *tps65912, u8 reg, u8 mask); | ||
| 316 | int tps65912_reg_read(struct tps65912 *tps65912, u8 reg); | ||
| 317 | int tps65912_reg_write(struct tps65912 *tps65912, u8 reg, u8 val); | ||
| 318 | int tps65912_device_init(struct tps65912 *tps65912); | ||
| 319 | void tps65912_device_exit(struct tps65912 *tps65912); | ||
| 320 | |||
| 321 | #endif /* __LINUX_MFD_TPS65912_H */ | ||
