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path: root/drivers/gpio/gpio-adnp.c (follow)
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2014-09-02gpio: adnp: switch to use irqchip helpersLinus Walleij1-108/+47
This switches the ADNP GPIO driver to use the gpiolib irqchip helpers. Also do some random refactoring to make it look like most other GPIO drivers. Cc: Roland Stigge <stigge@antcom.de> Cc: Lars Poeschel <poeschel@lemonage.de> Cc: Thierry Reding <thierry.reding@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-07-22gpio: remove all usage of gpio_remove retval in driver/gpioabdoulaye berthe1-8/+1
Signed-off-by: abdoulaye berthe <berthe.ab@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-03-18gpio: switch drivers to use new callbackLinus Walleij1-8/+7
This switches all GPIO and pin control drivers with irqchips that were using .startup() and .shutdown() callbacks to lock GPIO lines for IRQ usage over to using the .request_resources() and .release_resources() callbacks just introduced into the irqchip vtable. Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jean-Jacques Hiblot <jjhiblot@traphandler.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-12-04Merge branch 'mark-irqs' into develLinus Walleij1-0/+23
Conflicts: drivers/gpio/gpio-em.c
2013-12-04gpio: lock adnp IRQs when enabling themLinus Walleij1-0/+23
This uses the new API for tagging GPIO lines as in use by IRQs. This enforces a few semantic checks on how the underlying GPIO line is used. Only compile tested on the lpc32xx. ChangeLog v2->v3: - Switch to using the startup()/shutdown() callbacks again. Still satisfy the mask/unmask semantics. ChangeLog v1->v2: - Use the .enable() callback from the irq_chip - Call .unmask() from the .enable() callback to satisfy semantics. Cc: Lars Poeschel <poeschel@lemonage.de> Cc: Thierry Reding <thierry.reding@avionic-design.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-12-04gpio/pinctrl: make gpio_chip members typed booleanLinus Walleij1-1/+1
This switches the two members of struct gpio_chip that were defined as unsigned foo:1 to bool, because that is indeed what they are. Switch all users in the gpio and pinctrl subsystems to assign these values with true/false instead of 0/1. The users outside these subsystems will survive since true/false is 1/0, atleast we set some kind of more strict typing example. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-10-16gpio: adnp: rename "virq" to "child_irq"Linus Walleij1-3/+3
This variable is confusingly named, the different Linux IRQs aren't any more virtual than any other Linux IRQ. Give it a non-misleading name. Acked-by: Lars Poeschel <poeschel@lemonage.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-10-02gpio: adnp: Remove redundant of_match_ptrSachin Kamat1-1/+1
The data structure of_match_ptr() protects is always compiled in. Hence of_match_ptr() is not needed. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-16gpio: adnp: Fix segfault if request_threaded_irq failsLars Poeschel1-5/+1
In case request_threaded_irq inside adnp_irq_setup fails, the driver segfaults. This is because irq_domain_remove is called twice with the same pointer. First time in adnp_irq_setup and then a second time after leaving adnp_irq_setup in the error path of adnp_i2c_probe inside adnp_teardown. This fixes this by removing the call to irq_domain_remove from adnp_irq_setup. Signed-off-by: Lars Poeschel <poeschel@lemonage.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-11-28gpio: remove use of __devexitBill Pemberton1-1/+1
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 __devinitconstBill Pemberton1-2/+2
CONFIG_HOTPLUG is going away as an option so __devinitconst 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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-28gpio: remove use of __devinitBill Pemberton1-1/+1
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>
2012-11-28gpio: remove use of __devexit_pBill Pemberton1-1/+1
CONFIG_HOTPLUG is going away as an option so __devexit_p 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> 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>
2012-09-18gpio: Add Avionic Design N-bit GPIO expander supportThierry Reding1-0/+611
This commit adds a driver for the Avionic Design N-bit GPIO expander. The expander provides a variable number of GPIO pins with interrupt support. Changes in v2: - allow building the driver as a module - assign of_node unconditionally - use linear mapping IRQ domain - properly cleanup IRQ domain - add OF device table and annotate device tables - emulate rising and falling edge triggers - increase #gpio-cells to 2 - drop support for !OF - use IS_ENABLED to conditionalize DEBUG_FS code Changes in v3: - make IRQ support runtime configurable (interrupt-controller property) - drop interrupt-controller and #interrupt-cells from DT binding - add inline to_adnp() function to wrap container_of() macro - consistently use adnp as name for struct adnp variables - remove irq_mask_cur and rename irq_mask to irq_enable - fix a subtle deadlock in adnp_gpio_direction_output() - remove dynamic allocations from debugfs code - rename regs to num_regs to avoid confusion - annotate non-trivial code with comments - don't acquire mutex in adnp_gpio_get() - assume NO_IRQ == 0 Cc: Grant Likely <grant.likely@secretlab.ca> Cc: devicetree-discuss@lists.ozlabs.org Cc: Linus Walleij <linus.walleij@stericsson.com> Cc: linux-kernel@vger.kernel.org Acked-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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