kernel/git/stable/linux.git/drivers/gpio/Kconfig, branch linux-3.18.y

gpio: Fix OF build problem on UM

2016-09-01T02:05:44+00:00

[ Upstream commit 2527ecc9195e9c66252af24c4689e8a67cd4ccb9 ] The UserMode (UM) Linux build was failing in gpiolib-of as it requires ioremap()/iounmap() to exist, which is absent from UM. The non-existence of IO memory is negatively defined as CONFIG_NO_IOMEM which means we need to depend on HAS_IOMEM. Cc: stable@vger.kernel.org Cc: Geert Uytterhoeven Reported-by: kbuild test robot Signed-off-by: Linus Walleij Signed-off-by: Sasha Levin

gpio: kona: enable only on BCM_MOBILE or for compile testing

2014-09-25T07:52:17+00:00

This change makes it easier to configure a kernel for a real machine by not showing the option to enable it at all if COMPILE_TEST is off. Signed-off-by: Uwe Kleine-KÃ¶nig Acked-by: Markus Mayer Signed-off-by: Linus Walleij

GPIO: gpio-dwapb: Enable platform driver binding to MFD driver

2014-09-23T15:51:37+00:00

The Synopsys DesignWare APB GPIO driver only supports open firmware devices. But, like Intel Quark X1000 SOC, which has a single PCI function exporting a GPIO and an I2C controller, it is a Multifunction device. This patch is to enable the current Synopsys DesignWare APB GPIO driver to support the Multifunction device which exports the designware GPIO controller. Reviewed-by: Hock Leong Kweh Signed-off-by: Weike Chen Signed-off-by: Linus Walleij

gpio: mcp23s08 to support both device tree and platform data

2014-09-04T16:59:15+00:00

Device tree is not enabled in some architecture where gpio driver mcp23s08 is still required. v2-changes: - Parse device tree properties into platform data other than individual variables. v3-changes: - Use of_node in gpio_chip device structure, because the struct device * always has an of_node which is NULL when OF is not used. Signed-off-by: Sonic Zhang Reviewed-by: Alexandre Courbot Signed-off-by: Linus Walleij

gpio: adnp: switch to use irqchip helpers

2014-09-02T08:44:01+00:00

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 Cc: Lars Poeschel Cc: Thierry Reding Signed-off-by: Linus Walleij

gpio: Add APM X-Gene SoC GPIO controller support

2014-08-28T12:19:47+00:00

Add APM X-Gene SoC gpio controller driver. Signed-off-by: Feng Kan Signed-off-by: Linus Walleij

Merge tag 'gpio-v3.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

2014-08-09T01:00:35+00:00

Pull GPIO update from Linus Walleij: "This is the bulk of GPIO changes for the v3.17 development cycle, and this time we got a lot of action going on and it will continue: - The core GPIO library implementation has been split up in three different files: - gpiolib.c for the latest and greatest and shiny GPIO library code using GPIO descriptors only - gpiolib-legacy.c for the old integer number space API that we are phasing out gradually - gpiolib-sysfs.c for the sysfs interface that we are not entirely happy with, but has to live on for ABI compatibility - Add a flags argument to *gpiod_get* functions, with some backward-compatibility macros to ease transitions. We should have had the flags there from the beginning it seems, now we need to clean up the mess. There is a plan on how to move forward here devised by Alexandre Courbot and Mark Brown - Split off a special header for the board gpio table registration, as per example from the regulator subsystem - Start to kill off the return value from gpiochip_remove() by removing the __must_check attribute and removing all checks inside the drivers/gpio directory. The rationale is: well what were we supposed to do if there is an error code? Not much: print an error message. And gpiolib already does that. So make this function return void eventually - Some cleanups of hairy gpiolib code, make some functions not to be used outside the library private and make sure they are not exported, remove gpiod_lock/unlock_as_irq() as the existing function is for driver-internal use and fine as it is, delete gpio_ensure_requested() as it is not meaningful anymore - Support the GPIOF_ACTIVE_LOW flag from gpio_request_one() function calls, which is logical since this is already supported when referencing GPIOs from e.g. device trees - Switch STMPE, intel-mid, lynxpoint and ACPI (!) to use the gpiolib irqchip helpers cutting down on GPIO irqchip boilerplate a bit more - New driver for the Zynq GPIO block - The usual incremental improvements around a bunch of drivers - Janitorial syntactic and semantic cleanups by Jingoo Han, and Rickard Strandqvist especially" * tag 'gpio-v3.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (37 commits) MAINTAINERS: update GPIO include files gpio: add missing includes in machine.h gpio: add flags argument to gpiod_get*() functions MAINTAINERS: Update Samsung pin control entry gpio / ACPI: Move event handling registration to gpiolib irqchip helpers gpio: lynxpoint: Convert to use gpiolib irqchip gpio: split gpiod board registration into machine header gpio: remove gpio_ensure_requested() gpio: remove useless check in gpiolib_sysfs_init() gpiolib: Export gpiochip_request_own_desc and gpiochip_free_own_desc gpio: move gpio_ensure_requested() into legacy C file gpio: remove gpiod_lock/unlock_as_irq() gpio: make gpiochip_get_desc() gpiolib-private gpio: simplify gpiochip_export() gpio: remove export of private of_get_named_gpio_flags() gpio: Add support for GPIOF_ACTIVE_LOW to gpio_request_one functions gpio: zynq: Clear pending interrupt when enabling a IRQ gpio: drop retval check enforcing from gpiochip_remove() gpio: remove all usage of gpio_remove retval in driver/gpio devicetree: Add Zynq GPIO devicetree bindings documentation ...

gpio: lynxpoint: Convert to use gpiolib irqchip

2014-07-28T10:23:56+00:00

Instead of open-coding irqchip handling in the driver we can take advantage of the new irqchip helpers provided by the gpiolib core. While doing this we also make sure that we call gpiochip_irqchip_add() after the gpiochip itself is registered as required. Signed-off-by: Mika Westerberg Signed-off-by: Linus Walleij

gpio: Add driver for Zynq GPIO controller

2014-07-10T09:11:41+00:00

Add support for GPIO controller used by Xilinx Zynq. v3 changes: - Use linux/gpio/driver.h instead of linux/gpio.h - Make irq a local variable in probe v2 changes: - convert to pm_runtime_force_(suspend|resume) - add pm_runtime_set_active in probe() - also (un)prepare clocks when they are dis-/enabled - add some missing calls to pm_runtime_get() - use pm_runtime_put() instead of sync variant - remove gpio chip in driver remove() - remove redundant type casts - directly use IO helpers - use BIT macro to set/clear bits - migrate to GPIOLIB_IRQCHIP Signed-off-by: Harini Katakam Signed-off-by: Soren Brinkmann Signed-off-by: Linus Walleij

gpio: stmpe: switch to use gpiolib irqchip helpers

2014-06-19T07:31:16+00:00

This switches the STMPE driver to use the gpiolib irqchip helpers. Tested-by: Silvio Fricke Signed-off-by: Linus Walleij