- 04 6月, 2012 1 次提交
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由 Kukjin Kim 提交于
Should be 'exynos5_xxx' instead of 'exonys5_xxx'. It happened at the commit 30b84288 ("Merge tag 'soc2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc") during v3.5 merge window. Signed-off-by: NKukjin Kim <kgene.kim@samsung.com> [ My bad - Linus ] Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 26 5月, 2012 2 次提交
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由 Andreas Schallenberg 提交于
This is a follow-up to ae79c190 "[PATCH v2] Add support for TCA6424" merged in the v3.5 merge window. It fixes comments made when the patch was merged. - Use 3 byte transfers instead of two separate transfers (2+1 byte) - An unnecessary cast removed Signed-off-by: NAndreas Schallenberg <Andreas.Schallenberg@3alitytechnica.com> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 Dong Aisheng 提交于
Signed-off-by: NDong Aisheng <dong.aisheng@linaro.org> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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- 23 5月, 2012 2 次提交
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由 Laxman Dewangan 提交于
Parse the gpio specific device node information locally. Signed-off-by: NLaxman Dewangan <ldewangan@nvidia.com> Acked-by: NGrant Likely <grant.likely@secretlab.ca> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Seth Heasley 提交于
This patch adds the Intel Centerton processor device ID for GPIO. The device ID is defined in include/linux/pci_ids.h Signed-off-by: NSeth Heasley <seth.heasley@intel.com> Acked-by: NLinus Walleij <linus.walleij@linaro.org> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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- 21 5月, 2012 3 次提交
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由 John Crispin 提交于
Implements OF support and add code to load custom properties from the DT. The Serial To Parallel (STP) is found on MIPS based Lantiq socs. It is a peripheral controller used to drive external shift register cascades. At most 3 groups of 8 bits can be driven. The hardware is able to allow the DSL modem to drive the 2 LSBs of the cascade automatically. Newer socs are also able to automatically drive some pins via the internal PHYs. The driver currently only supports output functionality. Patches for the input feature found on newer generations of the soc will be provided in a later series. Signed-off-by: NJohn Crispin <blogic@openwrt.org> Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Acked-by: NGrant Likely <grant.likely@secretlab.ca> Patchwork: https://patchwork.linux-mips.org/patch/3839/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 John Crispin 提交于
Implements OF support and convert to of_mm_gpio. By attaching hardware latches to the External Bus Unit (EBU) on Lantiq SoC, it is possible to create output only gpios. This driver configures a special memory address, which when written to, outputs 16 bit to the latches. Signed-off-by: NJohn Crispin <blogic@openwrt.org> Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Acked-by: NGrant Likely <grant.likely@secretlab.ca> Patchwork: https://patchwork.linux-mips.org/patch/3840/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 John Crispin 提交于
Move the 2 drivers from arch/mips/lantiq/xway/ to the subsystem and make them buildable. The following 2 patches will convert the drivers to OF. Signed-off-by: NJohn Crispin <blogic@openwrt.org> Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Acked-by: NGrant Likely <grant.likely@secretlab.ca> Patchwork: https://patchwork.linux-mips.org/patch/3838/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 20 5月, 2012 4 次提交
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由 Mark Brown 提交于
The modern idiom is to use irq_domain to allocate interrupts. This is useful partly to allow further infrastructure to be based on the domains and partly because it makes it much easier to allocate virtual interrupts to devices as we don't need to allocate a contiguous range of interrupt numbers. Convert the wm831x driver over to this infrastructure, using a legacy IRQ mapping if an irq_base is specified in platform data and otherwise using a linear mapping, always registering the interrupts even if they won't ever be used. Only boards which need to use the GPIOs as interrupts should need to use an irq_base. This means that we can't use the MFD irq_base management since the unless we're using an explicit irq_base from platform data we can't rely on a linear mapping of interrupts. Instead we need to map things via the irq_domain - provide a conveniencem function wm831x_irq() to save a small amount of typing when doing so. Looking at this I couldn't clearly see anything the MFD core could do to make this nicer. Since we're not supporting device tree yet there's no meaningful advantage if we don't do this conversion in one, the fact that the interrupt resources are used for repeated IP blocks makes accessor functions for the irq_domain more trouble to do than they're worth. Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Laxman Dewangan 提交于
Make the gpio-tps65910 as platform driver and register this from tps65910 core driver as mfd sub device. Signed-off-by: NLaxman Dewangan <ldewangan@nvidia.com> Acked-by: NGrant Likely <grant.likely@secretlab.ca> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Rhyland Klein 提交于
This change removes the read/write callback functions in favor of common regmap accessors inside the header file. This change also makes use of regmap_read/write for single register access which maps better onto what this driver actually needs. Signed-off-by: NRhyland Klein <rklein@nvidia.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Shawn Guo 提交于
It fixes the issue in gpio-generic that commit fb149218 (gpio/mxc: add missing initialization of basic_mmio_gpio shadow variables) manged to fix in gpio-mxc driver, so that other platform specific drivers do not suffer from the same problem over and over again. Changes since v1: * Turn the last parameter of bgpio_init() "bool big_endian" into "unsigned long flags" and give those really quirky hardwares a chance to tell that reg_set and reg_dir are unreadable. Signed-off-by: NShawn Guo <shawn.guo@linaro.org> [grant.likely: Fix big-endian usage to explicitly set BBGPIOF_BIG_ENDIAN] Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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- 19 5月, 2012 9 次提交
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由 Grant Likely 提交于
Commit 3d0f7cf0 "gpio: Adjust of_xlate API to support multiple GPIO chips" changed the api of gpiochip_find to drop const from the data parameter of the match hook, but didn't also drop const from data causing a build warning. Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 Laxman Dewangan 提交于
The PMIC device RC5T583 from RICOH supports 8 gpios. Adding gpio driver for this device to access the pins control through gpio library. Signed-off-by: NLaxman Dewangan <ldewangan@nvidia.com> [grant.likely: slight cosmetic changes] Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 H Hartley Sweeten 提交于
The pr_info message in gpiochip_add gets displayed for every gpiochip registered. When first bringing up a system this information could be helpful but for normal use it's just a bunch of noise. Change the message to a pr_debug. Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 Thomas Gleixner 提交于
commit cfadd838(powerpc/8xxx: Fix interrupt handling in MPC8xxx GPIO driver) added an unconditional call of chip->irq_eoi() to the demux handler. This leads to a NULL pointer derefernce on MPC512x platforms which use this driver as well. Make it conditional. Reported-by: NThomas Wucher <thwucher@linutronix.de> Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Cc: Felix Radensky <felix@embedded-sol.com> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: stable@vger.kernel.org Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 Roland Stigge 提交于
This patch adds device tree support for gpio-lpc32xx.c. To register the various GPIO banks as (struct) gpio_chips via the same DT gpio-controller, we utilize the adjusted of_xlate API to manipulate the actually used struct gpio_chip. Signed-off-by: NRoland Stigge <stigge@antcom.de> Reviewed-by: NArnd Bergmann <arnd@arndb.de> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 Grant Likely 提交于
This patch changes the of_xlate API to make it possible for multiple gpio_chips to refer to the same device tree node. This is useful for banked GPIO controllers that use multiple gpio_chips for a single device. With this change the core code will try calling of_xlate on each gpio_chip that references the device_node and will return the gpio number for the first one to return 'true'. Tested-by: NRoland Stigge <stigge@antcom.de> Acked-by: NArnd Bergmann <arnd@arndb.de> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 Mark Brown 提交于
Allow drivers to use the modern request and configure idiom together with devres. As with plain gpio_request() and gpio_request_one() we can't implement the old school version in terms of _one() as this would force the explicit selection of a direction in gpio_request() which could break systems if we pick the wrong one. Implementing devm_gpio_request_one() in terms of devm_gpio_request() would needlessly complicate things or lead to duplication from the unmanaged version depending on how it's done. Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: NLinus Walleij <linus.walleij@linaro.org> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 Peter Korsgaard 提交于
Pullups are enabled when bits are set, not when cleared. Signed-off-by: NPeter Korsgaard <jacmet@sunsite.dk> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 Andreas Schallenberg 提交于
This patch extends the PCA953x driver to support TI's TCA6424A 24 bit I2C I/O expander. The patch is based on code by Michele Bevilacqua. Changes in v2: - Compare ngpio against 24 in both places, not >16 - Larger datatype now u32 instead of uint. Bit fields not used for struct members since their address is taken. - Be precise: TCA6424A (untested for older TCA6424) Signed-off-by: Andreas Schallenberg<Andreas.Schallenberg@3alitytechnica.com> Acked-by: NLinus Walleij <linus.walleij@linaro.org> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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- 18 5月, 2012 3 次提交
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由 Kevin Hilman 提交于
commit 1b128703 (gpio/omap: fix missing check in *_runtime_suspend()) broke wakeups on level-triggered GPIOs by adding the enabled non-wakeup GPIO check before the workaround that enables wakeups on level-triggered IRQs, effectively disabling that workaround. To fix, move the enabled non-wakeup GPIO check after the level-triggered IRQ workaround. Reported-by: NTony Lindgren <tony@atomide.com> Tested-by: NTony Lindgren <tony@atomide.com> Acked-by: NSantosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: NTarun Kanti DebBarma <tarun.kanti@ti.com> Tested-by: NTarun Kanti DebBarma <tarun.kanti@ti.com> Signed-off-by: NKevin Hilman <khilman@ti.com>
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由 Kevin Hilman 提交于
The fix in commit 1b128703 (gpio/omap: fix missing check in *_runtime_suspend()) exposed another bug in the context restore path. Currently, the per-bank context restore happens whenever the context loss count is different in runtime suspend and runtime resume *and* whenever the per-bank contex_loss_count == 0: if (context_lost_cnt_after != bank->context_loss_count || !context_lost_cnt_after) { omap_gpio_restore_context(bank); Restoring context when the context_lost_cnt_after == 0 is clearly wrong, since this will be true until the first off-mode transition (which could be never, if off-mode is never enabled.) This check causes the context to be restored on *every* runtime PM transition. Before commit 1b128703 (gpio/omap: fix missing check in *_runtime_suspend()), this code was never executed in non-OFF mode, so there were never spurious context restores happening. After that change though, spurious context restores could happen. To fix, simply remove the !context_lost_cnt_after check. It is not needed. This bug was found when noticing that the smc911x NIC on 3530/Overo was not working, and git bisect tracked it down to this patch. It seems that the spurious context restore was causing the smsc911x to not be properly probed on this platform. Tested-by: NTony Lindgren <tony@atomide.com> Acked-by: NTarun Kanti DebBarma <tarun.kanti@ti.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: NKevin Hilman <khilman@ti.com>
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由 Magnus Damm 提交于
This patch is V2 of the Emma Mobile GPIO driver. 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 Emma Mobile EV2. Each driver instance handles 32 GPIOs with individually maskable IRQs. The driver operates on two I/O memory ranges and the 32 GPIOs are hooked up to two interrupts. In the case of Emma Mobile EV2 this GPIO building block is used as main external interrupt controller hooking up 159 GPIOS as 159 interrupts via 5 driver instances and 10 interrupts to the GIC and the Cortex-A9 Dual. Signed-off-by: NMagnus Damm <damm@opensource.se> Acked-by: NLinus Walleij <linus.walleij@linaro.org> Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
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- 16 5月, 2012 1 次提交
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由 Sangsu Park 提交于
Add GPC4 bank instance which is included in rev1 of EXYNOS5. Signed-off-by: NSangsu Park <sangsu4u.park@samsung.com> Signed-off-by: NThomas Abraham <thomas.abraham@linaro.org> Acked-by: NGrant Likely <grant.likely@secretlab.ca> Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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- 12 5月, 2012 15 次提交
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由 Shawn Guo 提交于
It adds device tree probe for gpio-mxs driver. Signed-off-by: NShawn Guo <shawn.guo@linaro.org> Acked-by: NLinus Walleij <linus.walleij@linaro.org>
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由 Shawn Guo 提交于
It removes the use of cpu_is_xxx from gpio-mxs driver and instead use platform_device_id to identify the device. Accordingly, mxs platform code is changed to register gpio device with different names, and the registeration are done in soc specific initialization functions now, so postcore_initcall(mxs_add_mxs_gpio) gets removed. Signed-off-by: NShawn Guo <shawn.guo@linaro.org> Acked-by: NLinus Walleij <linus.walleij@linaro.org>
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由 Shawn Guo 提交于
It uses devm_* helpers to make the error handling of probe clean and simple. Signed-off-by: NShawn Guo <shawn.guo@linaro.org> Acked-by: NLinus Walleij <linus.walleij@linaro.org>
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由 Sachin Kamat 提交于
Fixes the following compiler warnings: drivers/gpio/gpio-samsung.c: In function ‘samsung_gpiolib_init’: drivers/gpio/gpio-samsung.c:2980:1: warning: label ‘err_ioremap1’ defined but not used [-Wunused-label] drivers/gpio/gpio-samsung.c:2978:1: warning: label ‘err_ioremap2’ defined but not used [-Wunused-label] drivers/gpio/gpio-samsung.c:2976:1: warning: label ‘err_ioremap3’ defined but not used [-Wunused-label] drivers/gpio/gpio-samsung.c:2974:1: warning: label ‘err_ioremap4’ defined but not used [-Wunused-label] drivers/gpio/gpio-samsung.c:2722:55: warning: unused variable ‘gpio_base4’ [-Wunused-variable] drivers/gpio/gpio-samsung.c:455:32: warning: ‘exynos_gpio_cfg’ defined but not used [-Wunused-variable] drivers/gpio/gpio-samsung.c:2126:33: warning: ‘exynos4_gpios_1’ defined but not used [-Wunused-variable] drivers/gpio/gpio-samsung.c:2228:33: warning: ‘exynos4_gpios_2’ defined but not used [-Wunused-variable] drivers/gpio/gpio-samsung.c:2373:33: warning: ‘exynos4_gpios_3’ defined but not used [-Wunused-variable] Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 Thomas Gleixner 提交于
Jean-Francois Dagenais reported: Configuring a gpio pin with the gpio-pch driver with "IRQF_TRIGGER_LOW | IRQF_ONESHOT" generates an interrupt storm for threaded ISR until the ISR thread actually gets to physically clear the interrupt on the triggering chip!! The immediate observable symptom is the high CPU usage for my ISR thread task and the interrupt count in /proc/interrupts incrementing radically. The driver is wrong in several ways: 1) Using handle_simple_irq() does not provide proper flow control handling. In the case of oneshot threaded handlers for the demultiplexed interrupts this results in an interrupt storm because the simple handler does not deal with masking/unmasking. Even without threaded oneshot handlers an interrupt storm for level type interrupts can easily be triggered when the interrupt is disabled and the interrupt line is activated from the device. 2) Acknowlegding the demultiplexed interrupt before calling the handler is wrong for level type interrupts. 3) The set_type function unconditionally enables the interrupt. It's supposed to set the type and nothing else. The unmasking is done by the core code. Move the acknowledge code into a separate function and add it to the demux irqchip callbacks. Remove the unconditional enabling from the set_type() callback and set the proper flow handlers depending on the selected type (level/edge). Reported-and-tested-by: NJean-Francois Dagenais <jeff.dagenais@gmail.com> Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 Tarun Kanti DebBarma 提交于
We do checking for bank->enabled_non_wakeup_gpios in order to skip redundant operations. Somehow, the check got missed while doing the cleanup series. Just to make sure that we do context restore correctly in *_runtime_resume(), the bank->workaround_enabled check is moved after context restore. Otherwise, it would prevent context restore when bank->enabled_non_wakeup_gpios is 0. Cc: Kevin Hilman <khilman@ti.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Cousson, Benoit <b-cousson@ti.com> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: NTarun Kanti DebBarma <tarun.kanti@ti.com> Reviewed-by: NSantosh Shilimkar <santosh.shilimkar@ti.com> Tested-by: NGovindraj.R <govindraj.raja@ti.com> Signed-off-by: NKevin Hilman <khilman@ti.com>
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由 Tarun Kanti DebBarma 提交于
Add register offsets for GPIO_IRQSTATUS_RAW_0, GPIO_IRQSTATUS_RAW_0 which are present on OMAP4+ processors. Now we can distinguish conditions applicable to OMAP4,5 and those specific to OMAP24xx and OMAP3xxx. Cc: Kevin Hilman <khilman@ti.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Cousson, Benoit <b-cousson@ti.com> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: NTarun Kanti DebBarma <tarun.kanti@ti.com> Reviewed-by: NSantosh Shilimkar <santosh.shilimkar@ti.com> Tested-by: NGovindraj.R <govindraj.raja@ti.com> Signed-off-by: NKevin Hilman <khilman@ti.com>
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由 Tarun Kanti DebBarma 提交于
Both omap_gpio_suspend() and omap_gpio_resume() does programming of wakeup_en register. _gpio_rmw(base, bank->regs->wkup_en, 0xffffffff, 0); _gpio_rmw(base, bank->regs->wkup_en, bank->context.wake_en, 1); This is redundant in omap_gpio_suspend() because wakeup_en register automatically gets initialized in _set_gpio_wakeup() and set_gpio_trigger() while being called either from chip.irq_set_wake() or chip.irq_set_type(). This is also redundant in omap_gpio_resume() because wakeup_en register is programmed in omap_gpio_restore_context() called which is called from runtime resume callback. Cc: Kevin Hilman <khilman@ti.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Cousson, Benoit <b-cousson@ti.com> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: NTarun Kanti DebBarma <tarun.kanti@ti.com> Reviewed-by: NSantosh Shilimkar <santosh.shilimkar@ti.com> Tested-by: NGovindraj.R <govindraj.raja@ti.com> Signed-off-by: NKevin Hilman <khilman@ti.com>
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由 Tarun Kanti DebBarma 提交于
commit 672e302e (ARM: OMAP: use edge/level handlers from generic IRQ framework) removed retrigger support in favor of using generic IRQ framework. This patch cleans up some unused remnants of that removal. Cc: Kevin Hilman <khilman@ti.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Cousson, Benoit <b-cousson@ti.com> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: NTarun Kanti DebBarma <tarun.kanti@ti.com> Reviewed-by: NSantosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: NFelipe Balbi <balbi@ti.com> Tested-by: NGovindraj.R <govindraj.raja@ti.com> Signed-off-by: NKevin Hilman <khilman@ti.com>
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由 Tarun Kanti DebBarma 提交于
There is no more need to have saved_wakeup because bank->context.wake_en already holds that value. So getting rid of read/write operation associated with this field. Cc: Kevin Hilman <khilman@ti.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Cousson, Benoit <b-cousson@ti.com> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: NTarun Kanti DebBarma <tarun.kanti@ti.com> Reviewed-by: NSantosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: NFelipe Balbi <balbi@ti.com> Tested-by: NGovindraj.R <govindraj.raja@ti.com> Signed-off-by: NKevin Hilman <khilman@ti.com>
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由 Tarun Kanti DebBarma 提交于
Since we already have bank->context.wake_en to keep track of gpios which are wakeup enabled, there is no need to have this field any more. Cc: Kevin Hilman <khilman@ti.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Cousson, Benoit <b-cousson@ti.com> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: NTarun Kanti DebBarma <tarun.kanti@ti.com> Reviewed-by: NSantosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: NFelipe Balbi <balbi@ti.com> Tested-by: NGovindraj.R <govindraj.raja@ti.com> Signed-off-by: NKevin Hilman <khilman@ti.com>
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由 Tarun Kanti DebBarma 提交于
Since we already have context.fallingdetect and context.risingdetect there is no more need to have these additional fields. Also, getting rid of extra reads associated with them. Cc: Kevin Hilman <khilman@ti.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Cousson, Benoit <b-cousson@ti.com> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: NTarun Kanti DebBarma <tarun.kanti@ti.com> Reviewed-by: NSantosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: NFelipe Balbi <balbi@ti.com> Tested-by: NGovindraj.R <govindraj.raja@ti.com> Signed-off-by: NKevin Hilman <khilman@ti.com>
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由 Mark Brown 提交于
Rather than requiring architectures that use gpiolib but don't have any need to define anything custom to copy an asm/gpio.h provide a Kconfig symbol which architectures must select in order to include gpio.h and for other architectures just provide the trivial implementation directly. This makes it much easier to do gpiolib updates and is also a step towards making gpiolib APIs available on every architecture. For architectures with existing boilerplate code leave a stub header in place which warns on direct inclusion of asm/gpio.h and includes linux/gpio.h to catch code that's doing this. Direct inclusion of asm/gpio.h has long been deprecated. Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: NJonas Bonn <jonas@southpole.se> Acked-by: NTony Luck <tony.luck@intel.com> Acked-by: NLinus Walleij <linus.walleij@linaro.org> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 Mathias Nyman 提交于
Add gpio support for Intel MSIC chips found in Intel Medfield platforms. MSIC supports totally 24 GPIOs with 16 low voltage and 8 high voltage pins. Driver uses MSIC mfd interface for MSIC access. (Updated comment to indicate why locking is actually safe) Signed-off-by: NMathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 Olof Johansson 提交于
Only code move, no functional change. Main reason to do this was to get rid of the warnings: drivers/gpio/gpio-samsung.c: In function 'samsung_gpiolib_init': drivers/gpio/gpio-samsung.c:2974:1: warning: label 'err_ioremap4' defined but not used [-Wunused-label] drivers/gpio/gpio-samsung.c:2722:47: warning: unused variable 'gpio_base4' [-Wunused-variable] without adding more ifdef mess. I think this whole file would do well being coverted over to a platform driver and moving most of the tables out to SoC code and/or device trees, but since that changes init ordering it needs to be done with some care, i.e. not at this time. Signed-off-by: NOlof Johansson <olof@lixom.net> Acked-by: NKukjin Kim <kgene.kim@samsung.com> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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