aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/gpio
Commit message (Collapse)AuthorAge
* gpio/omap: don't use linear domain mapping for OMAP1Javier Martinez Canillas2013-06-26
| | | | | | | | | | | | | | | | | | | Commit ede4d7a5 ("gpio/omap: convert gpio irq domain to linear mapping") converted the OMAP GPIO driver to use a linear mapping for the GPIO IRQ domain instead of using a legacy mapping. Not using a legacy mapping has a number of benefits but it requires the platform to support SPARSE_IRQ which currently is not supported on OMAP1. So this change caused a regression on OMAP1 platforms [1]. Since this issue is not present on all OMAP2+ platforms, there is no need to revert the driver to use legacy domain mapping for all the platforms. [1]: http://www.mail-archive.com/linux-omap@vger.kernel.org/msg89005.html Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Tony Lindgren <tony@atomide.com>
* Merge tag 'gpio-fixes-v3.10-1' of ↵Linus Torvalds2013-05-23
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO fixes from Linus Walleij: - An OMAP fix that makes ethernet work again. - Fix for build problem when building the MCP23S08 driver as module. - IRQ conflicts in the Langwell driver. - Fix IRQ coherency issues in the MXS driver. - Return correct errorcode on errorpath when removing GPIO chips. * tag 'gpio-fixes-v3.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: gpio: Don't override the error code in probe error handling gpio: mxs: Use set and clear capabilities of the gpio controller gpio-langwell: fix irq conflicts when DT is not used gpio: mcp23s08: Fix build error when CONFIG_SPI_MASTER=y && CONFIG_I2C=m gpio/omap: ensure gpio context is initialised
| * gpio: Don't override the error code in probe error handlingAxel Lin2013-05-20
| | | | | | | | | | | | | | | | | | | | | | Otherwise, we return 0 in probe error paths when gpiochip_remove() returns 0. Also show error message if gpiochip_remove() fails. Signed-off-by: Axel Lin <axel.lin@ingics.com> Cc: Tomoya MORINAGA <tomoya.rohm@gmail.com> Cc: Denis Turischev <denis@compulab.co.il> Cc: Lars Poeschel <poeschel@lemonage.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * gpio: mxs: Use set and clear capabilities of the gpio controllerMaxime Ripard2013-05-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current driver doesn't use the set and clear registers found on the mxs gpio controller. This leads the generic gpio controller to be using some internal value to avoid looking up the value stored in the registers, making it behave pretty much like a cache. This raises some coherency problem when a gpio is not modified by the gpio controller, while it can easily be fixed by using the set and clear registers. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * gpio-langwell: fix irq conflicts when DT is not usedDavid Cohen2013-05-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When DT is not used IOAPIC does not register irq domain. As result IOAPIC won't care about gpio-langwell's virq and may cause conflict if an irq number is equal to gpio-langwell's virq mapped beforehand. This patch tells gpio_langwell to not ignore irq_base if != 0 and preferably use it to avoid the conflict. If DT is used, irq_base can safely be 0. Signed-off-by: David Cohen <david.a.cohen@intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * gpio: mcp23s08: Fix build error when CONFIG_SPI_MASTER=y && CONFIG_I2C=mAxel Lin2013-05-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes below build error when CONFIG_SPI_MASTER=y && CONFIG_I2C=m && CONFIG_GPIO_MCP23S08=y. LD init/built-in.o drivers/built-in.o: In function `mcp23017_write': clkdev.c:(.text+0x1e14): undefined reference to `i2c_smbus_write_word_data' drivers/built-in.o: In function `mcp23017_read': clkdev.c:(.text+0x1e24): undefined reference to `i2c_smbus_read_word_data' drivers/built-in.o: In function `mcp23008_write': clkdev.c:(.text+0x1e8c): undefined reference to `i2c_smbus_write_byte_data' drivers/built-in.o: In function `mcp23008_read': clkdev.c:(.text+0x1e98): undefined reference to `i2c_smbus_read_byte_data' drivers/built-in.o: In function `mcp23008_read_regs': clkdev.c:(.text+0x1ed0): undefined reference to `i2c_smbus_read_byte_data' drivers/built-in.o: In function `mcp23s08_init': clkdev.c:(.init.text+0x30): undefined reference to `i2c_register_driver' drivers/built-in.o: In function `mcp23s08_exit': clkdev.c:(.exit.text+0x30): undefined reference to `i2c_del_driver' make: *** [vmlinux] Error 1 When CONFIG_I2C=m, meaning we can't build the drivers in with I2C support. Thus don't allow the drivers to be compiled as built-in when CONFIG_I2C=m. The real fix though is to break the driver apart into a SPI part, an I2C part and a common part. But that's something for 3.11 while this is something for 3.10/stable. Signed-off-by: Axel Lin <axel.lin@ingics.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * gpio/omap: ensure gpio context is initialisedJon Hunter2013-05-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit a2797be (gpio/omap: force restore if context loss is not detectable) broke gpio support for OMAP when booting with device-tree because a restore of the gpio context being performed without ever initialising the gpio context. In other words, the context restored was bad. This problem could also occur in the non device-tree case, however, it is much less likely because when booting without device-tree we can detect context loss via a platform specific API and so context restore is performed less often. Nevertheless we should ensure that the gpio context is initialised on the first pm-runtime resume for gpio banks that could lose their state regardless of whether we are booting with device-tree or not. The context loss count was being initialised on the first pm-runtime suspend following a resume, by populating the get_count_loss_count() function pointer after the first pm-runtime resume. To make the code more readable and logical, initialise the context loss count on the first pm-runtime resume if the context is not yet valid. Reported-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Jon Hunter <jon-hunter@ti.com> Acked-by: Santosh Shilimkar<santosh.shilimkar@ti.com> Reviewed-by: Kevin Hilman <khilman@linaro.org> Tested-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* | drivers/gpio: don't check resource with devm_ioremap_resourceWolfram Sang2013-05-18
|/ | | | | | | | devm_ioremap_resource does sanity checks on the given resource. No need to duplicate this in the driver. Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Acked-by: Stephen Warren <swarren@nvidia.com>
* Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linuxLinus Torvalds2013-05-09
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull removal of GENERIC_GPIO from Grant Likely: "GENERIC_GPIO now synonymous with GPIOLIB. There are no longer any valid cases for enableing GENERIC_GPIO without GPIOLIB, even though it is possible to do so which has been causing confusion and breakage. This branch does the work to completely eliminate GENERIC_GPIO." * tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux: gpio: update gpio Chinese documentation Remove GENERIC_GPIO config option Convert selectors of GENERIC_GPIO to GPIOLIB blackfin: force use of gpiolib m68k: coldfire: use gpiolib mips: pnx833x: remove requirement for GENERIC_GPIO openrisc: default GENERIC_GPIO to false avr32: default GENERIC_GPIO to false xtensa: remove explicit selection of GENERIC_GPIO sh: replace CONFIG_GENERIC_GPIO by CONFIG_GPIOLIB powerpc: remove redundant GENERIC_GPIO selection unicore32: default GENERIC_GPIO to false unicore32: remove unneeded select GENERIC_GPIO arm: plat-orion: use GPIO driver on CONFIG_GPIOLIB arm: remove redundant GENERIC_GPIO selection mips: alchemy: require gpiolib mips: txx9: change GENERIC_GPIO to GPIOLIB mips: loongson: use GPIO driver on CONFIG_GPIOLIB mips: remove redundant GENERIC_GPIO select
| * Remove GENERIC_GPIO config optionAlexandre Courbot2013-04-16
| | | | | | | | | | | | | | | | | | | | GENERIC_GPIO has been made equivalent to GPIOLIB in architecture code and all driver code has been switch to depend on GPIOLIB. It is thus safe to have GENERIC_GPIO removed. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Grant Likely <grant.likely@secretlab.ca>
* | Merge tag 'soc-for-linus-2' of ↵Linus Torvalds2013-05-07
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform updates (part 2) from Arnd Bergmann: "These patches are all for Renesas shmobile, and depend on the earlier pinctrl updates. Remarkably, this adds support for three new SoCs: r8a73a4, r8a73a4 and r8a7778. The bulk of the code added for these is for pinctrl (using the new subsystem) and for clocks (not yet using the common clock subsystem). The latter will have to get converted in one of the upcoming releases, but shmobile is not ready for that yet. The series also contains Renesas shmobile board changes, adding one board file for each of the three new SoCs. These boards are using a mix of classic and device-tree based probing, as there is still a lot of infrastructure in shmobile that has not been converted to DT yet. Once those are resolved to the degree that no board specific setup code is needed, they can get folded into the respective SoC setup files." * tag 'soc-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (78 commits) ARM: shmobile: use r8a7790 timer setup code on Lager ARM: shmobile: force enable of r8a7790 arch timer ARM: shmobile: Add second I/O range for r8a7790 PFC ARM: shmobile: bockw: enable network settings on bootargs ARM: shmobile: bockw: add SMSC ethernet support ARM: shmobile: R8A7778: add Ether support ARM: shmobile: bockw: enable SMSC ethernet on defconfig ARM: shmobile: r8a7778: add r8a7778_init_irq_extpin() ARM: shmobile: r8a7778: remove pointless PLATFORM_INFO() ARM: shmobile: mackerel: clean up MMCIF vs. SDHI1 selection ARM: shmobile: mackerel: add interrupt names for SDHI0 ARM: shmobile: mackerel: switch SDHI and MMCIF interfaces to slot-gpio ARM: shmobile: mackerel: remove OCR masks, where regulators are used ARM: shmobile: mackerel: SDHI resources do not have to be numbered ARM: shmobile: Initial r8a7790 Lager board support ARM: shmobile: APE6EVM LAN9220 support ARM: shmobile: APE6EVM PFC support ARM: shmobile: APE6EVM base support ARM: shmobile: kzm9g-reference: add ethernet support ARM: shmobile: add R-Car M1A Bock-W platform support ...
| * \ Merge tag 'renesas-boards3-for-v3.10' of ↵Olof Johansson2013-04-03
| |\ \ | | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/boards2 Third round of Renesas ARM SoC board updates for v3.10 Highlights: * Add Lager board support * Add ape6evm board support * Add Bock-W board support * Mackerel MMCIF/SDHI clean ups * Add ethernet support to kzm9g-reference This pull request is based on a merge of: git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas renesas-pinmux2-for-v3.10 git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas renesas-boards2-for-v3.10 The merge with renesas-pinmux2-for-v3.10 was made to provide run-time dependencies for the following changes: ARM: shmobile: APE6EVM LAN9220 support ARM: shmobile: APE6EVM PFC support * tag 'renesas-boards3-for-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: (307 commits) ARM: shmobile: mackerel: clean up MMCIF vs. SDHI1 selection ARM: shmobile: mackerel: add interrupt names for SDHI0 ARM: shmobile: mackerel: switch SDHI and MMCIF interfaces to slot-gpio ARM: shmobile: mackerel: remove OCR masks, where regulators are used ARM: shmobile: mackerel: SDHI resources do not have to be numbered ARM: shmobile: Initial r8a7790 Lager board support ARM: shmobile: APE6EVM LAN9220 support ARM: shmobile: APE6EVM PFC support ARM: shmobile: APE6EVM base support ARM: shmobile: kzm9g-reference: add ethernet support ARM: shmobile: add R-Car M1A Bock-W platform support sh-pfc: r8a73a4: Remove unused GPIO bias data ARM: shmobile: r8a73a4: Remove all GPIO enums sh-pfc: r8a73a4: Remove function GPIOs ARM: shmobile: r8a73a4: Remove IRQC function GPIOs ARM: shmobile: r8a73a4: Remove SCIF function GPIOs sh-pfc: r8a73a4: Remove IRQC function GPIOS sh-pfc: r8a73a4: Remove SCIF function GPIOS sh-pfc: r8a73a4: Add IRQC pin groups and functions sh-pfc: r8a73a4: Add SCIF pin groups and functions ... Signed-off-by: Olof Johansson <olof@lixom.net>
| | * gpio-rcar: Add pinctrl supportLaurent Pinchart2013-04-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | Register the GPIO pin range, and request and free GPIO pins using the pinctrl API. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
| | * gpio: Renesas R-Car GPIO driver V3Magnus Damm2013-04-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch is V3 of a GPIO driver for the R-Car series of SoCs from Renesas. This driver is designed to be reusable between multiple SoCs that share the same basic building block, but so far it has only been used on R-Car H1 (r8a7779). Each driver instance handles 32 GPIOs with individually maskable IRQs. The driver operates on a single I/O memory range and the 32 GPIOs are hooked up a single interrupt. In the case of R-Car H1 either external IRQ pins or GPIOs with interrupts can be used for on-board interupts. For external IRQs 4 pins are supported, and in the case of GPIO there are 202 GPIOS as 202 interrupts hooked up via 6 driver instances and to the GIC and the Cortex-A9 Quad. At this point this driver is interfacing as a regular platform device driver. In the future DT support will be submitted as an incremental feature patch. Signed-off-by: Magnus Damm <damm@opensource.se> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
| | * Merge branch 'soc' into pinmux-baseSimon Horman2013-04-01
| | |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: drivers/pinctrl/sh-pfc/pfc-r8a7740.c This merge is to provide r8a73a4 SoC files, which are added in the soc branch and depended on by r8a73a4 pfc-changes which are to be added to the pinmux branch.
* | | \ Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linuxLinus Torvalds2013-05-06
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull GPIO changes from Grant Likely: "The usual selection of bug fixes and driver updates for GPIO. Nothing really stands out except the addition of the GRGPIO driver and some enhacements to ACPI support" I'm pulling this despite the earlier mess. Let's hope it compiles these days. * tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux: (46 commits) gpio: grgpio: Add irq support gpio: grgpio: Add device driver for GRGPIO cores gpiolib-acpi: introduce acpi_get_gpio_by_index() helper GPIO: gpio-generic: remove kfree() from bgpio_remove call gpio / ACPI: Handle ACPI events in accordance with the spec gpio: lpc32xx: Fix off-by-one valid range checking for bank gpio: mcp23s08: convert driver to DT gpio/omap: force restore if context loss is not detectable gpio/omap: optimise interrupt service routine gpio/omap: remove extra context restores in *_runtime_resume() gpio/omap: free irq domain in probe() failure paths gpio: gpio-generic: Add 16 and 32 bit big endian byte order support gpio: samsung: Add terminating entry for exynos_pinctrl_ids gpio: mvebu: add dbg_show function MAX7301 GPIO: Do not force SPI speed when using OF Platform gpio: gpio-tps65910.c: fix checkpatch error gpio: gpio-timberdale.c: fix checkpatch error gpio: gpio-tc3589x.c: fix checkpatch errors gpio: gpio-stp-xway.c: fix checkpatch error gpio: gpio-sch.c: fix checkpatch error ...
| * | | | gpio: grgpio: Add irq supportAndreas Larsson2013-04-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The drivers sets up an irq domain and hands out unique irqs to irq capable gpio lines regardless of how underlying irq maps to gpio lines. Any gpio line can map to any one or none of the irqs of the core, independently of each other. Signed-off-by: Andreas Larsson <andreas@gaisler.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | | gpio: grgpio: Add device driver for GRGPIO coresAndreas Larsson2013-04-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This driver supports GRGPIO gpio cores available in the GRLIB VHDL IP core library from Aeroflex Gaisler. Signed-off-by: Andreas Larsson <andreas@gaisler.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | | gpiolib-acpi: introduce acpi_get_gpio_by_index() helperMika Westerberg2013-04-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of open-coding ACPI GPIO resource lookup in each driver, we provide a helper function analogous to Device Tree version that allows drivers to specify which GPIO resource they are interested (using an index to the GPIO resources). The function then finds out the correct resource, translates the ACPI GPIO number to the corresponding Linux GPIO number and returns that. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | | GPIO: gpio-generic: remove kfree() from bgpio_remove callAlexander Shiyan2013-04-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Memory for basic-mmio-gpio driver is allocated by the driver using it, whether it's the generic GPIO driver itself or another driver. In either case, the owner shall allocate and free the struct bgpio_chip it is using, preferably using a managed resource. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | | gpio / ACPI: Handle ACPI events in accordance with the specRafael J. Wysocki2013-04-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 0d1c28a (gpiolib-acpi: Add ACPI5 event model support to gpio.) that added support for ACPI events signalled through GPIO interrupts covered only GPIO pins whose numbers are less than or equal to 255. However, there may be GPIO pins with numbers greater than 255 and the ACPI spec (ACPI 5.0, Section 5.6.5.1) requires the _EVT method to be used for handling events corresponding to those pins. Moreover, according to the spec, _EVT is the default mechanism for handling all ACPI events signalled through GPIO interrupts, so if the _Exx/_Lxx method is not present for the given pin, _EVT should be used instead. If present, though, _Exx/_Lxx take precedence over _EVT which shouldn't be executed in that case (ACPI 5.0, Section 5.6.5.3). Modify acpi_gpiochip_request_interrupts() to follow the spec as described above and add acpi_gpiochip_free_interrupts() needed to free interrupts associated with _EVT. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | | gpio: lpc32xx: Fix off-by-one valid range checking for bankAxel Lin2013-04-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The valid bank should be 0 ... ARRAY_SIZE(lpc32xx_gpiochip) - 1. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | | gpio: mcp23s08: convert driver to DTLars Poeschel2013-04-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This converts the mcp23s08 driver to be able to be used with device tree. There is a "spi-present-mask" device tree property, that allows to use multiple of this spi chips on the same chipselect. v4: - removed the ability to specify the pullup from device tree - updated binding doc v3: - removed mcp,chips device tree property in favour of a mcp,spi-present-mask and a flag for the pullup of every gpio - seperated the match table. Now there is one for i2c and one for spi - do the of reading stuff on stack of the probe function - no devm any more v2: - squashed booth patches together - fixed build warning, when CONFIG_OF is not defined - use of_match_ptr macro for of_match_table Signed-off-by: Lars Poeschel <poeschel@lemonage.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | | gpio/omap: force restore if context loss is not detectableJon Hunter2013-04-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When booting with device-tree the function pointer for detecting context loss is not populated. Ideally, the pm_runtime framework should be enhanced to allow a means for reporting context/state loss and we could avoid populating such function pointers altogether. In the interim until a generic non-device specific solution is in place, force a restore of the gpio bank when enabling the gpio controller. Adds a new device-tree property for the OMAP GPIO controller to indicate if the GPIO controller is located in a power-domain that never loses power and hence will always maintain its logic state. Signed-off-by: Jon Hunter <jon-hunter@ti.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Reviewed-by: Kevin Hilman <khilman@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | | gpio/omap: optimise interrupt service routineJon Hunter2013-04-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The OMAP GPIO interrupt service routine is checking each bit in the GPIO interrupt status register to see which bits are set. It is not efficient to check every bit especially if only a few bits are set. Therefore, instead of checking every bit use the __ffs() function, which returns the location of the first set bit, to find all the set bits. This optimisation was suggested-by and developed in collaboration with Felipe Balbi. Signed-off-by: Jon Hunter <jon-hunter@ti.com> Reviewed-by: Felipe Balbi <balbi@ti.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Reviewed-by: Kevin Hilman <khilman@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | | gpio/omap: remove extra context restores in *_runtime_resume()Tarun Kanti DebBarma2013-04-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 68942edb09f69b6e09522d1d346665eb3aadde49 (gpio/omap: fix wakeups on level-triggered GPIOs) already restores the fallingdetect and risingdetect contexts in *_runtime_resume(). These registers were modified in *_runtime_suspend() to include even those configured as level-triggered since only edge-triggered gpios can generate wakeup events. Therefore, the old context restores of the same registers present later in the code is not needed any more. Remove them. Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com> Signed-off-by: Jon Hunter <jon-hunter@ti.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Reviewed-by: Kevin Hilman <khilman@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | | gpio/omap: free irq domain in probe() failure pathsJon Hunter2013-04-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently the IRQ domain is not freed once allocated, in the case where omap_gpio_probe() fails. Therefore, ensure we free the domain if the probe does fail. Furthermore, the local variable "ret" is not needed and so remove this. Signed-off-by: Jon Hunter <jon-hunter@ti.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Reviewed-by: Kevin Hilman <khilman@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | | gpio: gpio-generic: Add 16 and 32 bit big endian byte order supportAndreas Larsson2013-04-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is no general support for 64-bit big endian accesses, so that is left unsupported. Signed-off-by: Andreas Larsson <andreas@gaisler.com> Acked-by: Anton Vorontsov <anton@enomsg.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | | gpio: samsung: Add terminating entry for exynos_pinctrl_idsAxel Lin2013-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The of_device_id table is supposed to be zero-terminated. Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | | gpio: mvebu: add dbg_show functionSimon Guinot2013-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a dedicated dbg_show function to the gpio-mvebu driver. In addition to the generic gpiolib informations, this function displays informations related with the specific Marvell registers (blink enable, data in polarity, interrupt masks and cause). Signed-off-by: Simon Guinot <simon.guinot@sequanux.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | | MAX7301 GPIO: Do not force SPI speed when using OF PlatformChristophe Leroy2013-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The bit_per_word can be set in the OF Device tree, so no need to force it as with the platform_data when using OF Platform Signed-off-by: Patrick Vasseur <patrick.vasseur@c-s.fr> Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | | gpio: gpio-tps65910.c: fix checkpatch errorLaurent Navet2013-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix : gpio/gpio-tps65910.c:136: ERROR: space required before the open parenthesis '(' Signed-off-by: Laurent Navet <laurent.navet@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | | gpio: gpio-timberdale.c: fix checkpatch errorLaurent Navet2013-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix : gpio/gpio-timberdale.c:171: ERROR: else should follow close brace '}' Signed-off-by: Laurent Navet <laurent.navet@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | | gpio: gpio-tc3589x.c: fix checkpatch errorsLaurent Navet2013-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix : gpio/gpio-tc3589x.c:285: ERROR: code indent should use tabs where possible gpio/gpio-tc3589x.c:286: ERROR: code indent should use tabs where possible gpio/gpio-tc3589x.c:287: ERROR: code indent should use tabs where possible gpio/gpio-tc3589x.c:347: ERROR: code indent should use tabs where possible Signed-off-by: Laurent Navet <laurent.navet@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | | gpio: gpio-stp-xway.c: fix checkpatch errorLaurent Navet2013-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix : gpio/gpio-stp-xway.c:220: ERROR: trailing whitespace Signed-off-by: Laurent Navet <laurent.navet@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | | gpio: gpio-sch.c: fix checkpatch errorLaurent Navet2013-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix : gpio/gpio-sch.c:206: ERROR: switch and case should be at the same indent Also remove blank lines Signed-off-by: Laurent Navet <laurent.navet@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | | gpio: gpio-pxa.c: fix checkpatch errorsLaurent Navet2013-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix : gpio/gpio-pxa.c:605: ERROR: space required after that ',' (ctx:VxV) gpio/gpio-pxa.c:672: ERROR: space prohibited after that open parenthesis '(' Signed-off-by: Laurent Navet <laurent.navet@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | | gpio: gpio-pca953x.c: fix checkpatch errorLaurent Navet2013-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix : gpio/gpio-pca953x.c:150: ERROR: else should follow close brace '}' Signed-off-by: Laurent Navet <laurent.navet@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | | gpio: gpio-omap.c: fix checkpatch errorLaurent Navet2013-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix : gpio/gpio-omap.c:697: ERROR: space required before the open parenthesis '(' Signed-off-by: Laurent Navet <laurent.navet@gmail.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | | gpio: gpio-mvebu.c: fix checkpatch errorsLaurent Navet2013-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix : gpio/gpio-mvebu.c:120: ERROR: space required before the open parenthesis '(' gpio/gpio-mvebu.c:136: ERROR: space required before the open parenthesis '(' gpio/gpio-mvebu.c:154: ERROR: space required before the open parenthesis '(' gpio/gpio-mvebu.c:404: ERROR: space required before the open parenthesis '(' gpio/gpio-mvebu.c:476: ERROR: "(foo*)" should be "(foo *)" gpio/gpio-mvebu.c:480: ERROR: "(foo*)" should be "(foo *)" gpio/gpio-mvebu.c:484: ERROR: "(foo*)" should be "(foo *)" gpio/gpio-mvebu.c:512: ERROR: space prohibited after that '!' (ctx:BxW) gpio/gpio-mvebu.c:518: ERROR: space prohibited after that '!' (ctx:BxW) gpio/gpio-mvebu.c:518: ERROR: space required before the open brace '{' gpio/gpio-mvebu.c:563: ERROR: space prohibited after that '!' (ctx:BxW) gpio/gpio-mvebu.c:570: ERROR: trailing whitespace gpio/gpio-mvebu.c:577: ERROR: space required before the open parenthesis '(' gpio/gpio-mvebu.c:635: ERROR: space prohibited after that '!' (ctx:BxW) Signed-off-by: Laurent Navet <laurent.navet@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | | gpio: gpiolib-of.c: fix checkpatch errorLaurent Navet2013-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix : gpio/gpiolib-of.c:64: ERROR: code indent should use tabs where possible Signed-off-by: Laurent Navet <laurent.navet@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | | gpio: mc33880: use spi_get_drvdata() and spi_set_drvdata()Jingoo Han2013-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the wrapper functions for getting and setting the driver data using spi_device instead of using dev_{get|set}_drvdata with &spi->dev, so we can directly pass a struct spi_device. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | | gpio: 74x164: use spi_get_drvdata() and spi_set_drvdata()Jingoo Han2013-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the wrapper functions for getting and setting the driver data using spi_device instead of using dev_{get|set}_drvdata with &spi->dev, so we can directly pass a struct spi_device. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | | gpio: mc33880: use dev_err() instead of printk()Jingoo Han2013-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dev_err() is more preferred than printk(). Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | | gpio: pcf857x: use devm_kzalloc()Jingoo Han2013-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use devm_kzalloc() to make cleanup paths simpler. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | | gpio: mc33880: use devm_kzalloc()Jingoo Han2013-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use devm_kzalloc() to make cleanup paths simpler. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | | gpio: max732x: use devm_kzalloc()Jingoo Han2013-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use devm_kzalloc() to make cleanup paths simpler. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | | gpio: max7301: use devm_kzalloc()Jingoo Han2013-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use devm_kzalloc() to make cleanup paths simpler. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | | gpio: max7300: use devm_kzalloc()Jingoo Han2013-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use devm_kzalloc() to make cleanup paths simpler. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | | gpio: adp5520: use devm_kzalloc()Jingoo Han2013-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use devm_kzalloc() to make cleanup paths simpler. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-20 03:51:13 -0500