summaryrefslogtreecommitdiff
AgeCommit message (Collapse)AuthorFilesLines
2015-08-13gpio: brcmstb: support wakeup from S5 cold bootGregory Fong1-6/+50
For wake from S5, we need to: - register a reboot handler - set wakeup capability before requesting IRQ so wakeup count is incremented - mask all GPIO IRQs and clear any pending interrupts during driver probe to since no driver will yet be registered to handle any IRQs carried over from boot at that time, and it's possible that the booted kernel does not request the same IRQ anyway. This means that /sys/.../power/wakeup_count is valid at boot time, and we can properly account for S5 wakeup stats. e.g.: ### After waking from S5 from a GPIO key # cat /sys/bus/platform/drivers/brcmstb-gpio/f04172c0.gpio/power/wakeup enabled # cat /sys/bus/platform/drivers/brcmstb-gpio/f04172c0.gpio/power/wakeup_count 1 Signed-off-by: Gregory Fong <gregory.0xf0@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-08-13gpio: brcmstb: Add interrupt and wakeup source supportGregory Fong2-6/+257
Uses the gpiolib irqchip helpers. For this to work, the irq setup function is called once per bank instead of once per device. Note that all known uses of this block have a BCM7120 L2 interrupt controller as a parent. Supports interrupts for all GPIOs. In the IRQ handler, we check for raised IRQs for invalid GPIOs and warn (ratelimited) if they're encountered. Also, several drivers (e.g. gpio-keys) allow for GPIOs to be configured as wakeup sources, and this GPIO controller supports that through a separate interrupt path. The de-facto standard DT property "wakeup-source" is checked, since that indicates whether the GPIO controller hardware can wake. Uses the IRQCHIP_MASK_ON_SUSPEND irq_chip flag because UPG GIO doesn't have any of its own wakeup source configuration. Aside regarding gpiolib irqchip helpers: It wasn't obvious (to me) that you can have multiple chained irqchips and associated IRQ domains for a single parent IRQ, and as long as the xlate function is written correctly, a GPIO IRQ request end up checking the correct domain and will get associated with the correct IRQ. What helps make this clear is to read drivers/gpio/gpiolib-of.c: - of_gpiochip_find_and_xlate() - of_get_named_gpiod_flags() drivers/gpio/gpiolib.c: - gpiochip_find() Signed-off-by: Gregory Fong <gregory.0xf0@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-08-13gpio/ABI: document what is already the caseLinus Walleij1-1/+2
commit 926b663ce8215ba448960e1ff6e58b67a2c3b99b "gpiolib: allow GPIOs to be named" added the ability to name GPIO lines by an array of names stored in the GPIO chip. This was in 2009 and has been an ABI since. Let's document it properly. Cc: Daniel Silverstone <dsilvers@digital-scurf.org> Cc: Markus Pargmann <mpa@pengutronix.de> Cc: Johan Hovold <johan@kernel.org> Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-08-03gpio: etraxfs: add interrupt supportRabin Vincent2-7/+253
On ETRAX FS, all pins on the first port (and only the first port) have interrupt support. On ARTPEC-3, all pins on all ports have interrupt support. However, there are only eight interrupts. Each of the interrupts is associated with a group of pins and for each interrupt the one pin from the group which will trigger it can be selected. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-08-03gpio: don't override irq_*_resources() callbacksRabin Vincent1-2/+10
If the driver has specified its own irq_{request/release}_resources() functions, don't override them. The gpio-etraxfs driver will use this. Signed-off-by: Rabin Vincent <rabin@rab.in> [Added a small comment blurb] Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-28gpio: mpc8xxx: Convert mpc8xxx_gpio_chip.lock to raw_spinlockAlexander Stein1-24/+24
mpc8xxx_gpio_chip.lock needs to be a real spinlock in preempt-rt. Especially the interrupt related functions can not be converted to a sleeping lock. Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-28gpio: defer probe if pinctrl cannot be foundTomeu Vizoso3-12/+24
When an OF node has a pin range for its GPIOs, return -EPROBE_DEFER if the pin controller isn't available. Otherwise, the GPIO range wouldn't be set at all unless the pin controller probed always before the GPIO chip. With this change, the probe of the GPIO chip will be deferred and will be retried at a later point, hopefully once the pin controller has been registered and probed already. Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-28gpio: kill off set_irq_flags usageRob Herring14-57/+10
set_irq_flags is ARM specific with custom flags which have genirq equivalents. Convert drivers to use the genirq interfaces directly, so we can kill off set_irq_flags. The translation of flags is as follows: IRQF_VALID -> !IRQ_NOREQUEST IRQF_PROBE -> !IRQ_NOPROBE IRQF_NOAUTOEN -> IRQ_NOAUTOEN For IRQs managed by an irqdomain, the irqdomain core code handles clearing and setting IRQ_NOREQUEST already, so there is no need to do this in .map() functions and we can simply remove the set_irq_flags calls. Some users also modify IRQ_NOPROBE and this has been maintained although it is not clear that is really needed as most platforms don't use probing. There appears to be a great deal of blind copy and paste of this code. Signed-off-by: Rob Herring <robh@kernel.org> Cc: Michael Hennerich <michael.hennerich@analog.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Cc: Alexandre Courbot <gnurou@gmail.com> Cc: Ray Jui <rjui@broadcom.com> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: linux-gpio@vger.kernel.org Cc: bcm-kernel-feedback-list@broadcom.com Cc: linux-tegra@vger.kernel.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-27gpio: etraxfs: add support for ARTPEC-3Rabin Vincent2-7/+62
Add support for the GIO block in the ARTPEC-3 SoC. The basic functionality is essentialy the same as the version in the ETRAX FS, except for a different set of ports, including a read-only port. Cc: devicetree@vger.kernel.org Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-27gpio: generic: support input-only chipsRabin Vincent2-3/+21
Allow chips to indicates that they are input-only and thus cannot set the output value. This will be used by the gpio-etraxfs driver. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-27gpio: etraxfs: fix set register flagRabin Vincent1-1/+1
BGPIO_F_UNREADABLE_REG_SET is incorrect, since the set register _is_ readable. What's really required is BGPIO_F_READ_OUTPUT_REG_SET: reading the set register reads the set output value. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-27gpio: rcar: Add r8a7795 (R-Car H3) supportUlrich Hecht2-0/+5
R-Car Gen3's GPIO blocks are identical to Gen2's in every respect. Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com> Acked-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-27gpio: omap: use raw locks for lockingSebastian Andrzej Siewior1-40/+40
This patch converts gpio_bank.lock from a spin_lock into a raw_spin_lock. The call path is to access this lock is always under a raw_spin_lock, for instance - __setup_irq() holds &desc->lock with irq off + __irq_set_trigger() + omap_gpio_irq_type() - handle_level_irq() (runs with irqs off therefore raw locks) + mask_ack_irq() + omap_gpio_mask_irq() This fixes the obvious backtrace on -RT. However the locking vs context is not and this is not limited to -RT: - omap_gpio_irq_type() is called with IRQ off and has an conditional call to pm_runtime_get_sync() which may sleep. Either it may happen or it may not happen but pm_runtime_get_sync() should not be called with irqs off. - omap_gpio_debounce() is holding the lock with IRQs off. + omap2_set_gpio_debounce() + clk_prepare_enable() + clk_prepare() this one might sleep. The number of users of gpiod_set_debounce() / gpio_set_debounce() looks low but still this is not good. Acked-by: Javier Martinez Canillas <javier@dowhile0.org> Acked-by: Santosh Shilimkar <ssantosh@kernel.org> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-27gpio: remove unneeded initializer in gpiochip_add_to_list()Masahiro Yamada1-1/+1
This variable is used as an iterator and initialized in the list_for_each() loop. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-27dt-bindings: gpio: document bindings supported by gpio-mpc8xxx.cUwe Kleine-König1-0/+22
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-27gpio: mpc8xxx: add support for MPC5125Uwe Kleine-König1-0/+15
The gpio controller on MPC5125 is identical to the MPC5121 register wise, the only difference is that the lines 0..3 are input only instead of 28..31 on MPC5121. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-27gpio: mpc8xxx: handle differences between incarnations at a single placeUwe Kleine-König1-11/+38
The gpio controllers that are handled by the mpc8xxx driver differ slightly. Up to now some differences were handled by use of of_device_is_compatible, others by use of struct of_device_id's data. To make this consistent and easily extendable handle the differences at a single place. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-27gpio: mpc8xxx: constify of_device_idUwe Kleine-König1-1/+1
This variable is not modified in the driver and all functions it it passed to don't change it either. So it can and should be marked const. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-21gpio: document interaction with other subsystemsLinus Walleij3-5/+102
Now I am very fed up with people reinventing kernel wheels in userspace "just because they can" (read, sysfs). Put in a angry blurb in sysfs doc and put in a new file with pointers to other subsystem drivers utilizing GPIOs. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-17Merge branch 'queue/irq/gpio' of ↵Linus Walleij18-65/+55
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into devel
2015-07-17gpio/davinci: add interrupt support for GPIOs 16-31Vitaly Andrianov1-1/+1
Interrupts for GPIOs 16 through 31 are enabled by bit 1 in the "binten" register (offset 8). Previous versions of GPIO only used bit 0, which enables GPIO 0-15 interrupts. Signed-off-by: Vitaly Andrianov <vitalya@ti.com> Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com> Reviewed-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-17Merge tag 'gpiod-flags-for-4.3' of git://git.pengutronix.de/git/ukl/linux ↵Linus Walleij13-155/+88
into devel The last patch in this series makes the flags parameter for the various gpiod_get* functions mandatory and so allows to remove an ugly cpp hack introduced in commit 39b2bbe3d715 (gpio: add flags argument to gpiod_get*() functions) for v3.17-rc1. The other nine commits fix the last remaining users of these functions that don't pass flags yet. (Only etraxfs-uart wasn't fixed; this driver's use of the gpiod functions needs fixing anyhow.)
2015-07-17gpio: etraxfs: Fix devm_ioremap_resource return value checkKrzysztof Kozlowski1-2/+2
Value returned by devm_ioremap_resource() was checked for non-NULL but devm_ioremap_resource() returns IOMEM_ERR_PTR, not NULL. In case of error this could lead to dereference of ERR_PTR. Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com> Acked-by: Alexandre Courbot <acourbot@nvidia.com> Acked-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-16gpiolib: remove unneeded assignationLaurent Navet1-1/+1
ret is assigned value from of_property_read_string_index but is overwritten before being used so remove it. Also fix coverity CID 1309759 Reported-by: coverity (CID 1309759) Signed-off-by: Laurent Navet <laurent.navet@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-16gpio: 74xx: Fix build warning about void to integer castNicholas Krause1-1/+1
This fixes the build warning , warning: cast from pointer to integer of different size when building this file on a x86 allmodconfig configuration. In order for me to fix this build warning I changed the cast in the function mmio_74xx_gpio_probe from casting the variable data of the stucture pointer of_id to uintptr_t rather then unsigned when assigning to the variable flag of the structure pointer priv of the structure type mmio_74xx_gpio_priv. Signed-off-by: Nicholas Krause <xerofoify@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-16gpiolib: assign chip owner to dev->driver->owner if not setGrygorii Strashko1-0/+3
Assign GPIO chip owner field to chip->dev->driver->owner if it was not configured by GPIO driver. Cc: Johan Hovold <johan@kernel.org> Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Acked-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-16gpiolib: irqchip: prevent driver unloading if gpio is used as irq onlyGrygorii Strashko1-0/+5
Now nothing prevents GPIO driver from being unloaded if its gpios were requested as GPIO IRQs only (without calling gpio_request()). Hence, add calls of try_module_get()/module_put() into gpiochip_irq_reqres/relres() to track such scenario properly. Cc: Johan Hovold <johan@kernel.org> Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-16gpio: pcf857x: get rid of slock spinlockGrygorii Strashko1-9/+5
The spinlock 'slock' is used now to protect pcf857x_irq() from itself which is unnecessary (especially after switching to use threaded IRQs). Hence, remove it and use mutex to protect device data in IRQ handler. Cc: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-16gpio: rcar: Fine-grained Runtime PM supportGeert Uytterhoeven1-4/+16
Currently gpio modules are runtime-resumed at probe time. This means the gpio module will be active all the time (except during system suspend, if not configured as a wake-up source). While an R-Car Gen2 gpio module retains pins configured for output at the requested level while put in standby mode, gpio registercannot be accessed while suspended. Unfortunately pm_runtime_get_sync() cannot be called from all contexts where gpio register access is needed. Hence move the Runtime PM handling from probe/remove time to gpio request/free time, which is probably the best we can do. On r8a7791/koelsch, gpio modules 0, 1, 3, and 4 are now suspended during normal use (gpio2 is used for LEDs and regulators, gpio5 for keys, gpio6 for SD-Card CD & WP, gpio7 for keys and regulators). Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-16gpio: em: Remove obsolete platform data supportGeert Uytterhoeven2-37/+8
Since commit 59032702ead90562 ("ARM: shmobile: Remove legacy platform devices from EMEV2 SoC code"), EMMA Mobile SoCs are only supported in generic DT-only ARM multi-platform builds. The driver doesn't need to use platform data anymore, hence remove platform data configuration. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Simon Horman <horms+renesas@verge.net.au> Tested-by: Niklas Söderlund <niso@kth.se> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-16gpio: zx: Add ZTE zx296702 GPIO supportJun Nie3-0/+331
Add ZTE zx296702 GPIO controller support Signed-off-by: Jun Nie <jun.nie@linaro.org> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-16gpio: Document ZTE zx296702 GPIO DT bindingJun Nie1-0/+24
Add document of ZTE zx296702 GPIO binding Signed-off-by: Jun Nie <jun.nie@linaro.org> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-16gpio: of: remove unnecessary variable in of_get_gpio_hog()Masahiro Yamada1-4/+1
The variable "desc" is only used for storing the return value at the end of the function. It is unneeded. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-16gpio: mvebu: kill bogus dependency on GPIO_GENERICMasahiro Yamada1-1/+0
The driver gpio-mvebu.c does not depend on gpio-generic.c at all. Drop unneeded "select GPIO_GENERIC". Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-16gpio: altera: use of_mm_gpiochip_remove() to fix memory leakMasahiro Yamada1-1/+1
This driver calls of_mm_gpiochip_add() to add a memory mapped gpio chip. So, of_mm_gpiochip_remove() should be used when removing it. The direct call of gpiochip_remove() misses unmapping the register and freeing the label. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Acked-by: Tien Hock Loh <thloh@altera.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-16gpio: altera: fix return value of altera_gpio_remove()Masahiro Yamada1-1/+1
The remove callback never succeeds, which seems odd. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Acked-by: Tien Hock Loh <thloh@altera.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-16gpio: altera: kill bogus dependency on GPIO_GENERICMasahiro Yamada1-1/+0
The driver gpio-altera.c does not depend on gpio-generic.c at all. Drop unneeded "select GPIO_GENERIC". Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Tien Hock Loh <thloh@altera.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-16gpio: zynq: add missing module_exit functionMasahiro Yamada1-0/+6
This driver is tristate, so it should be cleanable. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Tested-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-16dt-bindings: brcmstb-gpio: document properties for wakeupGregory Fong1-7/+28
Some brcmstb GPIO controllers can be used to wake from suspend, so use the de facto standard property 'wakeup-source' to mark the nodes of controllers with that capability. Also document interrupts-extended, which will be used for wakeup handling because the interrupt parent for the wake IRQ is different from the regular IRQ. While we're at it, a few more fixes: We don't actually use the "interrupt-names" property, so remove it from the listed optional properties and from the examples. And since we're modifying the examples, also follow Brian's suggestions to: - change #gpio-cells, #interrupt-cells, and brcm,gpio-bank-widths from hex to dec - use phandles Reviewed-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Gregory Fong <gregory.0xf0@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-16gpiolib: Fix docs for gpiochip_add_pingroup_rangeTomeu Vizoso1-1/+1
gpiochip_add_pingroup_range() has a pctldev argument, not pinctrl. Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-16gpio: generic: add get_direction supportPhilipp Zabel1-0/+18
Allow to determine the current direction configuration by reading back from the direction register. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-14gpio/davinci: Fix race in installing chained irq handlerThomas Gleixner1-4/+2
Fix a race where a pending interrupt could be received and the handler called before the handler's data has been setup, by converting to irq_set_chained_handler_and_data(). Search and conversion was done with coccinelle. Reported-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Alexandre Courbot <gnurou@gmail.com>
2015-07-14gpio/davinci: Avoid redundant lookup of irq_dataThomas Gleixner1-4/+4
It's pretty silly to do void *cd = irq_get_chip_data(irq_data->irq); because that results in cd = irq_data->chip_data, but goes through a redundant lookup of the irq_data. Use irq_data directly. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Alexandre Courbot <gnurou@gmail.com> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: linux-gpio@vger.kernel.org
2015-07-14gpio/msm-v2: Avoid redundant lookup of irq_dataThomas Gleixner1-13/+5
It's pretty silly to do irq_data *d = irq_get_irq_data(irq_data->irq); because that results in d = irq_data, but goes through a lookup of the irq_data. Use irq_data directly. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Alexandre Courbot <gnurou@gmail.com> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: linux-gpio@vger.kernel.org
2015-07-14gpio/sa1100: Prepare sa1100_gpio_handler for irq argument removalThomas Gleixner1-2/+2
The irq argument of most interrupt flow handlers is unused or merily used instead of a local variable. The handlers which need the irq argument can retrieve the irq number from the irq descriptor. Search and update was done with coccinelle and the invaluable help of Julia Lawall. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Alexandre Courbot <gnurou@gmail.com> Cc: linux-gpio@vger.kernel.org
2015-07-14gpio/mvebu: Prepare mvebu_gpio_irq_handler for irq argument removalThomas Gleixner1-1/+1
The irq argument of most interrupt flow handlers is unused or merily used instead of a local variable. The handlers which need the irq argument can retrieve the irq number from the irq descriptor. Search and update was done with coccinelle and the invaluable help of Julia Lawall. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Alexandre Courbot <gnurou@gmail.com> Cc: linux-gpio@vger.kernel.org
2015-07-14gpio/ep93xx: Prepare ep93xx_gpio_f_irq_handler for irq argument removalThomas Gleixner1-1/+3
The irq argument of most interrupt flow handlers is unused or merily used instead of a local variable. The handlers which need the irq argument can retrieve the irq number from the irq descriptor. Search and update was done with coccinelle and the invaluable help of Julia Lawall. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Alexandre Courbot <gnurou@gmail.com> Cc: linux-gpio@vger.kernel.org
2015-07-14gpio/davinci: Prepare gpio_irq_handler for irq argument removalThomas Gleixner1-1/+2
The irq argument of most interrupt flow handlers is unused or merily used instead of a local variable. The handlers which need the irq argument can retrieve the irq number from the irq descriptor. Search and update was done with coccinelle and the invaluable help of Julia Lawall. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Alexandre Courbot <gnurou@gmail.com> Cc: linux-gpio@vger.kernel.org
2015-07-14gpio: Use irq_desc_get_xxx() to avoid redundant lookup of irq_descJiang Liu10-15/+14
Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc while we already have a pointer to corresponding irq_desc. Preparatory patch for the removal of the 'irq' argument from irq flow handlers. Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Cc: Alexandre Courbot <gnurou@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-07-14gpio/davinci: Use accessor function irq_data_get_irq_handler_data()Jiang Liu1-1/+1
This is a preparatory patch for moving irq_data struct members. Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Alexandre Courbot <gnurou@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
generated by cgit v1.2.3 (git 2.39.0) at 2025-09-02 06:53:10 +0300