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path: root/drivers/gpio/gpio-twl4030.c
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2013-01-17gpio: twl4030: Cache the direction and output states in private dataPeter Ujfalusi
Use more coherent locking in the driver. Use bitfield to store the GPIO direction and if the pin is configured as output store the status also in a bitfiled. In this way we can just look at these bitfields when we need information about the pin status and only reach out to the chip when it is needed. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-01-17gpio: twl4030: Introduce private structure to store variables needed runtimePeter Ujfalusi
Move most of the global variables inside a private structure and allocate it dynamically. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-12-16Merge tag 'mfd-3.8-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6 Pull MFS update from Samuel Ortiz: "This is the MFD patch set for the 3.8 merge window. We have several new drivers, most of the time coming with their sub devices drivers: - Austria Microsystem's AS3711 - Nano River's viperboard - TI's TPS80031, AM335x TS/ADC, - Realtek's MMC/memstick card reader - Nokia's retu We also got some notable cleanups and improvements: - tps6586x got converted to IRQ domains. - tps65910 and tps65090 moved to the regmap IRQ API. - STMPE is now Device Tree aware. - A general twl6040 and twl-core cleanup, with moves to the regmap I/O and IRQ APIs and a conversion to the recently added PWM framework. - sta2x11 gained regmap support. Then the rest is mostly tiny cleanups and fixes, among which we have Mark's wm5xxx and wm8xxx patchset." Far amount of annoying but largely trivial conflicts. Many due to __devinit/exit removal, others due to one or two of the new drivers also having come in through another tree. * tag 'mfd-3.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (119 commits) mfd: tps6507x: Convert to devm_kzalloc mfd: stmpe: Update DT support for stmpe driver mfd: wm5102: Add readback of DSP status 3 register mfd: arizona: Log if we fail to create the primary IRQ domain mfd: tps80031: MFD_TPS80031 needs to select REGMAP_IRQ mfd: tps80031: Add terminating entry for tps80031_id_table mfd: sta2x11: Fix potential NULL pointer dereference in __sta2x11_mfd_mask() mfd: wm5102: Add tuning for revision B mfd: arizona: Defer patch initialistation until after first device boot mfd: tps65910: Fix wrong ack_base register mfd: tps65910: Remove unused data mfd: stmpe: Get rid of irq_invert_polarity mfd: ab8500-core: Fix invalid free of devm_ allocated data mfd: wm5102: Mark DSP memory regions as volatile mfd: wm5102: Correct default for LDO1_CONTROL_2 mfd: arizona: Register haptics devices mfd: wm8994: Make current device behaviour the default mfd: tps65090: MFD_TPS65090 needs to select REGMAP_IRQ mfd: Fix stmpe.c build when OF is not enabled mfd: jz4740-adc: Use devm_kzalloc ...
2012-12-11Merge tag 'driver-core-3.8-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg Kroah-Hartman: "Here's the large driver core updates for 3.8-rc1. The biggest thing here is the various __dev* marking removals. This is going to be a pain for the merge with different subsystem trees, I know, but all of the patches included here have been ACKed by their various subsystem maintainers, as they wanted them to go through here. If this is too much of a pain, I can pull all of them out of this tree and just send you one with the other fixes/updates and then, after 3.8-rc1 is out, do the rest of the removals to ensure we catch them all, it's up to you. The merges should all be trivial, and Stephen has been doing them all in linux-next for a few weeks now quite easily. Other than the __dev* marking removals, there's nothing major here, some firmware loading updates and other minor things in the driver core. All of these have (much to Stephen's annoyance), been in linux-next for a while. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" Fixed up trivial conflicts in drivers/gpio/gpio-{em,stmpe}.c due to gpio update. * tag 'driver-core-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (93 commits) modpost.c: Stop checking __dev* section mismatches init.h: Remove __dev* sections from the kernel acpi: remove use of __devinit PCI: Remove __dev* markings PCI: Always build setup-bus when PCI is enabled PCI: Move pci_uevent into pci-driver.c PCI: Remove CONFIG_HOTPLUG ifdefs unicore32/PCI: Remove CONFIG_HOTPLUG ifdefs sh/PCI: Remove CONFIG_HOTPLUG ifdefs powerpc/PCI: Remove CONFIG_HOTPLUG ifdefs mips/PCI: Remove CONFIG_HOTPLUG ifdefs microblaze/PCI: Remove CONFIG_HOTPLUG ifdefs dma: remove use of __devinit dma: remove use of __devexit_p firewire: remove use of __devinitdata firewire: remove use of __devinit leds: remove use of __devexit leds: remove use of __devinit leds: remove use of __devexit_p mmc: remove use of __devexit ...
2012-11-28gpio: remove use of __devexitBill Pemberton
CONFIG_HOTPLUG is going away as an option so __devexit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Grant Likely <grant.likely@secretlab.ca> Acked-by: Linus Walleij <linus.walleij@linaro.org> Cc: Peter Tyser <ptyser@xes-inc.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-28gpio: remove use of __devinitBill Pemberton
CONFIG_HOTPLUG is going away as an option so __devinit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Peter Tyser <ptyser@xes-inc.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Kevin Hilman <khilman@ti.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-21mfd/rtc/gpio: twl: No need to allocate bigger buffer for writePeter Ujfalusi
Since the twl-core has been converted to use regmap it is no longer needed to allocate bigger buffer for data when writing to twl. CC: Grant Likely <grant.likely@secretlab.ca> CC: Alessandro Zummo <a.zummo@towertech.it> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-17gpio: twl4030: Use only TWL4030_MODULE_LED for LED configurationPeter Ujfalusi
Avoid using the TWL4030_MODULE_PWMA/B as module ID. The LEDEN, PWMA ON/OFF and PWMB ON/OFF registers are in a continuous range starting from LED base. This is going to be helpful for further cleanup in the twl stack. No functional changes. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-09-16Merge tag 'omap-cleanup-sparseirq-for-v3.7' into devel-dtTony Lindgren
This branch contains changes needed to make omap2+ work properly with sparse IRQ. It also removes dependencies to mach/hardware.h. These help moving things towards ARM single zImage support. This branch is based on a commit in tty-next branch with omap-devel-gpmc-fixed-for-v3.7 and cleanup-omap-tags-for-v3.7 merged in to keep things compiling and sort out some merge conflicts. Conflicts: arch/arm/mach-omap2/omap4-common.c drivers/gpio/gpio-twl4030.c
2012-09-12ARM: OMAP2+: Remove hardcoded twl4030 gpio_base, irq_base and irq_endTony Lindgren
We can't use hardcoded interrupts for SPARSE_IRQ, and can replace the hardcoded gpio_base with twl_gpiochip.base after it's been allocated. Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Samuel Ortiz <sameo@linux.intel.com> Cc: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-09-07gpio/twl4030: get platform data from device treeFlorian Vaussard
Adds a number of missing device tree properties for twl4030/gpio, and update bindings: - "ti,use-leds" -> .use_leds - "ti,debounce" -> .debounce - "ti,mmc-cd" -> .mmc_cd - "ti,pullups" -> .pullups - "ti,pulldowns" -> .pulldowns Signed-off-by: Florian Vaussard <florian.vaussard@epfl.ch> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Vaibhav Hiremath <hvaibhav@ti.com> [b-cousson@ti.com: Fix some checkpatch CHECK issues] Signed-off-by: Benoit Cousson <b-cousson@ti.com>
2012-03-22gpio/twl: Add DT support to gpio-twl4030 driverBenoit Cousson
Add the DT support for the I2C GPIO expander inside the twl4030. Note: The pdata parameters still have to be properly adapted using dedicated bindings. Signed-off-by: Benoit Cousson <b-cousson@ti.com> Acked-by: Felipe Balbi <balbi@ti.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-03-22gpio/twl: Allocate irq_desc dynamically for SPARSE_IRQ supportBenoit Cousson
Do not use the board pdata for irq_base, but allocate them dynamically to allow a proper support of SPARSE_IRQ. Fix an unneeded line wrap. Signed-off-by: Benoit Cousson <b-cousson@ti.com> Acked-by: Felipe Balbi <balbi@ti.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-03-22mfd: Make twl4030 SIH SPARSE_IRQ capableBenoit Cousson
twl4030 is using a two level irq controllers infrastruture. So far, only the first level was using dynamic irq_desc allocation to be able to have irq_domain support for device tree. There is a need to allocate separate irq_descs for the SIH too to avoid hacking the first level with interrupts from the second level. Add an irq_base parameter to allow the caller to provide the base from pdata or from dynamic allocation. Affect TWL4030_NR_IRQS to the twl-core IRQs only. Moreover that will allow the extraction of the of_node pointer for further Device Tree conversion. Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Benoit Cousson <b-cousson@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-06-06gpio: reorganize driversGrant Likely
Sort the gpio makefile and enforce the naming convention gpio-*.c for gpio drivers. v2: cleaned up filenames in Kconfig and comment blocks v3: fixup use of BASIC_MMIO to GENERIC_GPIO for mxc Signed-off-by: Grant Likely <grant.likely@secretlab.ca>