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path: root/drivers/gpio
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2011-10-26gpio: pl061: add DT binding supportRob Herring1-10/+21
This adds devicetree binding support to the ARM pl061 driver removing the platform_data dependency. When DT binding is used, the gpio numbering is assigned dynamically. For now, interrupts are not supported with DT until irqdomains learn dynamic irq assignment. Rather than add another case of -1, updating the driver to use NO_IRQ. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-10-19gpio-ml-ioh: Use NUMA_NO_NODE not GFP_KERNELTomoya MORINAGA1-1/+1
Currently, GFP_KERNEL is used as parameter of irq_alloc_descs like below. irq_base = irq_alloc_descs(-1, IOH_IRQ_BASE, num_ports[j], GFP_KERNEL); This is not true. So, this patch uses NUMA_NO_NODE not GFP_KERNEL. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Reported-by: David Rientjes <rientjes@google.com> Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.lapis-semi.com> Acked-by: David Rientjes <rientjes@google.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-10-19gpio-pch: Use NUMA_NO_NODE not GFP_KERNELTomoya MORINAGA1-1/+1
Currently, GFP_KERNEL is used as parameter of irq_alloc_descs like below. irq_base = irq_alloc_descs(-1, IOH_IRQ_BASE, num_ports[j], GFP_KERNEL); This is not true. So, this patch uses NUMA_NO_NODE not GFP_KERNEL. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Reported-by: David Rientjes <rientjes@google.com> Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.lapis-semi.com> Acked-by: David Rientjes <rientjes@google.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-10-06gpio: langwell: ensure alternate function is clearedAdrian Hunter1-0/+27
Alternate function must be zero for the pin to act as a GPIO. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-10-05gpio-pch: Support interrupt functionTomoya MORINAGA2-0/+188
Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-10-05gpio-pch: Save register value in suspend()Tomoya MORINAGA1-1/+21
Currently, when suspend is occurred, register im0/1 and gpio_use_sel are not saved. This patch modifies so that register im0/1 and gpio_use_sel are saved. Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-10-05gpio-pch: modify gpio_nums and maskTomoya MORINAGA1-6/+25
Currently, the number of GPIO pins is set fixed value(=12). Also PIN MASK is set as '0xfff'. However the pins differs by IOH. This patch sets the value correctly. Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-10-05gpio-pch: support ML7223 IOH n-BusTomoya MORINAGA1-0/+1
Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-10-05gpio-pch: add spinlock in suspend/resume processingTomoya MORINAGA1-0/+10
Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-10-05gpio-pch: Delete invalid "restore" code in suspend()Tomoya MORINAGA1-1/+0
Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-10-05gpio-ml-ioh: Fix suspend/resume issueTomoya MORINAGA1-12/+48
Currently, some registers are not saved in case changing to suspend state. This patch fixes the issue. Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-10-05gpio-ml-ioh: Support interrupt functionTomoya MORINAGA2-3/+207
Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-10-05gpio-ml-ioh: Delete unnecessary codeTomoya MORINAGA1-1/+0
This register restore processing is unnecessary in suspend processing. (The restore processing is already in resume processing) Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-09-21gpio/mxc: add chained_irq_enter/exit() to mx3_gpio_irq_handler()Shawn Guo1-0/+6
The mx3_gpio_irq_handler() is also called on imx6q which has GIC as the primary interrupt controller. As GIC implements the fasteoi flow control, we need to add chained_irq_enter/exit() to mx3_gpio_irq_handler() for signaling EOI, otherwise system will hang whenever there is a gpio irq triggered. v2: use chained_irq_{enter,exit}() Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-09-20gpio/nomadik: use genirq core to track enablementLinus Walleij1-9/+2
Currently the Nomadik GPIO driver tracks enabled/disabled interrupt status with a local variable, switch to using the interrupt core. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-09-20gpio/nomadik: disable clocks when unusedRabin Vincent1-7/+113
The GPIO clock is required for register access and interrupt detection. When interrupt detection is not required on any of the pin in a block, the block's clock can be disabled when the registers are not being accessed. Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Reviewed-by: Rickard Andersson <rickard.andersson@stericsson.com> Reviewed-by: Jonas Aberg <jonas.aberg@stericsson.com> [Adjust for new IRQ chip core code, use only local functions] Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-08-01Merge branch 'gpio/next' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds5-1/+1088
* 'gpio/next' of git://git.secretlab.ca/git/linux-2.6: gpio_msm: Move Qualcomm MSM v2 gpio driver into drivers gpio_msm: Move Qualcomm v6 MSM driver into drivers msm: gpio: Fold register defs into C file msm: gpiomux: Move public API to public header msm: gpio: Remove ifdefs on gpio chip registers msm: gpio: Remove chip-specific register definitions msm: Remove chip-ifdefs for GPIO io mappings msm: gpio: Remove unsupported devices gpio: ab8500: fix MODULE_ALIAS for ab8500 of/gpio: export of_gpio_simple_xlate
2011-08-01Merge branch 'msm-move-gpio' of ↵Grant Likely4-0/+1087
git://codeaurora.org/quic/kernel/davidb/linux-msm into gpio/next Conflicts: drivers/gpio/Kconfig drivers/gpio/Makefile
2011-08-01gpio_msm: Move Qualcomm MSM v2 gpio driver into driversDavid Brown3-0/+442
Migrate the driver for the v7-based MSM chips into drivers/gpio. The driver is unchanged, only moved. Change-Id: I810db5b50b71cdca4e869aa0d0310f7f48781a55 Signed-off-by: David Brown <davidb@codeaurora.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
2011-08-01gpio_msm: Move Qualcomm v6 MSM driver into driversDavid Brown3-0/+645
Migrate the driver for the v6-based MSM chips into drivers/gpio. The driver is unchanged, only moved. Change-Id: I03ba597b95b4d62b42da112a8efac88d67aa40f9 Signed-off-by: David Brown <davidb@codeaurora.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
2011-07-31tps65912: gpio: add gpio driverMargarita Olaya3-0/+163
TPS65912 has five GPIOs that can be configured for different purposes. Signed-off-by: Margarita Olaya Cabrera <magi@slimlogic.co.uk> Acked-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-07-28gpio: ab8500: fix MODULE_ALIAS for ab8500Axel Lin1-1/+1
Since 43cc71eed1250755986da4c0f9898f9a635cb3bf (platform: prefix MODALIAS with "platform:"), the platform modalias is prefixed with "platform:". This patch changes the MODULE_ALIAS to "platform:ab8500-gpio". Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-07-25Merge branch 'for-linus' of ↵Linus Torvalds4-7/+6
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (43 commits) fs: Merge split strings treewide: fix potentially dangerous trailing ';' in #defined values/expressions uwb: Fix misspelling of neighbourhood in comment net, netfilter: Remove redundant goto in ebt_ulog_packet trivial: don't touch files that are removed in the staging tree lib/vsprintf: replace link to Draft by final RFC number doc: Kconfig: `to be' -> `be' doc: Kconfig: Typo: square -> squared doc: Konfig: Documentation/power/{pm => apm-acpi}.txt drivers/net: static should be at beginning of declaration drivers/media: static should be at beginning of declaration drivers/i2c: static should be at beginning of declaration XTENSA: static should be at beginning of declaration SH: static should be at beginning of declaration MIPS: static should be at beginning of declaration ARM: static should be at beginning of declaration rcu: treewide: Do not use rcu_read_lock_held when calling rcu_dereference_check Update my e-mail address PCIe ASPM: forcedly -> forcibly gma500: push through device driver tree ... Fix up trivial conflicts: - arch/arm/mach-ep93xx/dma-m2p.c (deleted) - drivers/gpio/gpio-ep93xx.c (renamed and context nearby) - drivers/net/r8169.c (just context changes)
2011-07-22Merge branch 'gpio/next' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds50-802/+2820
* 'gpio/next' of git://git.secretlab.ca/git/linux-2.6: (61 commits) gpio/mxc/mxs: fix build error introduced by the irq_gc_ack() renaming mcp23s08: add i2c support mcp23s08: isolate spi specific parts mcp23s08: get rid of setup/teardown callbacks gpio/tegra: dt: add binding for gpio polarity mcp23s08: remove unused work queue gpio/da9052: remove a redundant assignment for gpio->da9052 gpio/mxc: add device tree probe support ARM: mxc: use ARCH_NR_GPIOS to define gpio number gpio/mxc: get rid of the uses of cpu_is_mx() gpio/mxc: add missing initialization of basic_mmio_gpio shadow variables gpio: Move mpc5200 gpio driver to drivers/gpio GPIO: DA9052 GPIO module v3 gpio/tegra: Use engineering names in DT compatible property of/gpio: Add new method for getting gpios under different property names gpio/dt: Refine GPIO device tree binding gpio/ml-ioh: fix off-by-one for displaying variable i in dev_err gpio/pca953x: Deprecate meaningless device-tree bindings gpio/pca953x: Remove dynamic platform data pointer gpio/pca953x: Fix IRQ support. ...
2011-07-19gpio/mxc/mxs: fix build error introduced by the irq_gc_ack() renamingShawn Guo2-4/+4
The following commit renames irq_gc_ack() to irq_gc_ack_set_bit(), and makes gpio-mxc and gpio-mxs fail to build. 659fb32d1b67476f4ade25e9ea0e2642a5b9c4b5 genirq: replace irq_gc_ack() with {set,clr}_bit variants (fwd) The patch fixed a couple of typo of comma to semicolon. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-07-15gpio: wm831x: add a missing break in wm831x_gpio_dbg_showAxel Lin1-0/+1
Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-07-15mcp23s08: add i2c supportPeter Korsgaard2-8/+191
Add i2c bindings for the mcp230xx devices. This is quite a lot simpler than the spi one as there's no funky sub addressing done (one struct i2c_client per struct gpio_chip). The mcp23s08_platform_data structure is reused for i2c, even though only a single mcp23s08_chip_info structure is needed. To use, simply fill out a platform_data structure and pass it in i2c_board_info, E.G.: static const struct mcp23s08_platform_data mcp23017_data = { .chip[0] = { .pullups = 0x00ff, }, .base = 240, }; static struct i2c_board_info __initdata i2c_devs[] = { { I2C_BOARD_INFO("mcp23017", 0x20), .platform_data = &smartview_mcp23017_data, }, ... }; Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-07-15mcp23s08: isolate spi specific partsPeter Korsgaard1-24/+57
Change spi member of struct mcp23s08 to be a ops-specific opaque data pointer, and move spi specific knowledge out of mcp23s08_probe_one(). No functional change, but is needed to add i2c support. Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-07-15mcp23s08: get rid of setup/teardown callbacksPeter Korsgaard1-19/+0
There's no in-tree users, and bus notifiers are more generic anyway. Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-07-14mcp23s08: remove unused work queuePeter Korsgaard1-3/+0
Never accessed anywhere. Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-07-14gpio/da9052: remove a redundant assignment for gpio->da9052Axel Lin1-1/+0
We just set it twice in da9052_gpio_probe. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-07-11Merge branch 'master' into for-nextJiri Kosina4-14/+35
Sync with Linus' tree to be able to apply pending patches that are based on newer code already present upstream.
2011-07-08gpio/mxc: add device tree probe supportShawn Guo1-6/+28
The patch adds device tree probe support for gpio-mxc driver. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-07-08gpio/mxc: get rid of the uses of cpu_is_mx()Shawn Guo1-18/+107
The patch removes all the uses of cpu_is_mx(). Instead, it utilizes platform_device_id to distinguish the different gpio types, IMX1_GPIO on i.mx1, IMX21_GPIO on i.mx21 and i.mx27, IMX31_GPIO on all other i.mx SoCs. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-07-08gpio/langwell_gpio: ack the correct bit for langwell gpio interruptsMathias Nyman1-1/+1
The wrong bit was masked when acking langwell gpio interrupts. Reason for maskig the wrong bit was probably because__ffs() and ffs() functions return bit indexes differently (0..31 vs 1..32) This fixes langwell based devices from hanging when a gpio interrupt is triggered and undoes the breakage which occurred in change set 732063b92bb727b27e61580ce278dddefe31c6ad Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-07-07gpio/mxc: add missing initialization of basic_mmio_gpio shadow variablesLothar Waßmann1-0/+2
The bgpio_init() function does not initialise the shadow register for the GPIO direction register. Thus, when configuring the first GPIO with gpio_set_direction() all other GPIOs of the same bank will be configured as inputs. Since the bgpio layer cannot know whether the register is readable, the initialisation should be done by the caller of bgpio_init(). Also, the 'data' shadow variable that is used inside basic_mmio_gpio to cache the current value of the GPIO_DR register is initialised from the GPIO_PSR register within bgpio_init(). Thus when setting the output value of a certain GPIO, the other GPIO outputs of the same bank will be set or cleared depending on the pin state of the GPIO inputs during bgpio_init(). Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-07-07Update my e-mail addressMichael Büsch1-1/+1
Signed-off-by: Michael Buesch <m@bues.ch> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-07-06gpio: Move mpc5200 gpio driver to drivers/gpioGrant Likely3-0/+381
GPIO drivers are getting consolidated into drivers/gpio. While at it, change the driver name to mpc5200-gpio* to avoid collisions. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-07-06GPIO: DA9052 GPIO module v3ashishj33-0/+285
DA9052 PMIC has 16 bit GPIO bus for peripheral control. This patch add support for the GPIO pins on the DA9052. Signed-off-by: David Dajun Chen <dchen@diasemi.com> Signed-off-by: Ashish Jangam <ashish.jangam@kpitcummins.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-07-05gpio/tegra: Use engineering names in DT compatible propertyStephen Warren1-1/+1
Engineering names are more stable than marketing names. Hence, use them for Device Tree compatible properties instead. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-07-05gpio: tps65910: add missing breaks in tps65910_gpio_initAxel Lin1-0/+2
Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-06-20treewide: remove duplicate includesVitaliy Ivanov1-1/+0
Many stupid corrections of duplicated includes based on the output of scripts/checkincludes.pl. Signed-off-by: Vitaliy Ivanov <vitalivanov@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-06-16gpio/ml-ioh: fix off-by-one for displaying variable i in dev_errAxel Lin1-1/+1
with the "for (; i != 0; i--)" sytax, i-- will be executed after the iteration. thus dev_err shows wrong i value. Switch to "while(--i >= 0)" which is better in readability. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-06-16gpio/pca953x: Deprecate meaningless device-tree bindingsDavid Jander1-2/+9
The property 'polarity' is handled by the GPIO core, and the 'gpio-base' should be assigned automatically. It is meaningless in the device-tree, since GPIO's are identified by the "chip-name"/offset pair. This way, the whole pca953x_get_alt_pdata() can hopefully soon go away. We still need to check whether we really want GPIO-interrupt functionality by simply looking if the I2C node has an interrupts property defined, since this property is not used for anything else. Signed-off-by: David Jander <david@protonic.nl> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-06-16gpio/pca953x: Remove dynamic platform data pointerDavid Jander1-49/+28
In the case that we obtain device-tree data to fill in platform_data, the new platform data struct was dynamically allocated, but the pointer to it was not used everywhere it should. It seems easier to fix this issue by removing the dynamic allocation altogether since its data is only used during driver probing. Signed-off-by: David Jander <david@protonic.nl> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-06-16gpio/pca953x: Fix IRQ support.David Jander1-1/+3
It seems that in the normal case, IRQ_NOREQUEST needs to be explicitly cleared, otherwise claiming the interrupt fails. In the case of sparse interrupts, the descriptor needs to be allocated first. Signed-off-by: David Jander <david@protonic.nl> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-06-16Merge branch 'for_3.1/gpio-cleanup' of ↵Grant Likely1-570/+153
git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm into gpio/next
2011-06-16gpio/omap: cleanup show revision, remove cpu_is checks, display only onceKevin Hilman1-8/+6
Remove cpu_is_* checks from gpio_show_revision() by passing in the revision address offset from platform data. SoCs with no revision register (15xx, 7xx, and all MPUIOs) use -1 (actually, USHRT_MAX) to signify no register. While here, all GPIO banks are assumed to be the same revision, so fix show_revision() to only show the revision for the first bank it finds. This removes duplicate GPIO revision prints during boot. Thanks to Charulatha V <charu@ti.com> for finding/fixing a few -1s that were missed in the original patch. Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-06-16gpio/omap: debounce remove SoC specific registers, use pdataKevin Hilman1-12/+3
Use register offsets passed in from pdata for accessing debounce registers. Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-06-16gpio/omap: cleanup _set_gpio_wakeup(), remove ifdefsKevin Hilman1-34/+16
Make _set_gpio_wakeup() generic by removing ifdefs. Code for the various SoCs/bank-methods was already the same, except for the non-wakeup GPIO checking. But that flag is set on a per-SoC basis, so can be used for all SoCs. While here, use dev_err() and remove GPIO bank calculation assumption based on subtracting bank pointers. Signed-off-by: Kevin Hilman <khilman@ti.com>
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-25 01:47:15 +0000