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path: root/drivers/gpio/gpio-iop.c
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2017-12-03gpio: iop: add missing MODULE_DESCRIPTION/AUTHOR/LICENSEJesse Chan1-0/+4
This change resolves a new compile-time warning when built as a loadable module: WARNING: modpost: missing MODULE_LICENSE() in drivers/gpio/gpio-iop.o see include/linux/module.h for more information This adds the license as "GPL", which matches the header of the file. MODULE_DESCRIPTION and MODULE_AUTHOR are also added. Signed-off-by: Jesse Chan <jc@linux.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-09-12gpio: iop: Use generic GPIO MMIO functions for driverAlexander Shiyan1-93/+22
This patch switches the driver to use the generic GPIO MMIO functions that removes a bit of redundant and duplicate code. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-23gpio: iop: Use devm_gpiochip_add_data() for gpio registrationLaxman Dewangan1-1/+1
Use devm_gpiochip_add_data() for GPIO registration. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
2016-01-05gpio: convert remaining users to gpiochip_add_data()Linus Walleij1-1/+1
For completion, sweep the floor from all gpiochip_add() usage so we can remove that function and get rid of the function wrapper gpiochip_add(). Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-10-20gpio: drop owner assignment from platform_driversWolfram Sang1-1/+0
A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-03-26gpio: iop: fix devm_ioremap_resource() return value checkingBartlomiej Zolnierkiewicz1-0/+2
devm_ioremap_resource() returns a pointer to the remapped memory or an ERR_PTR() encoded error code on failure. Fix the check inside iop3xx_gpio_probe() accordingly. Cc: Lennert Buytenhek <kernel@wantstofly.org> Cc: Mikael Pettersson <mikpe@it.uu.se> Cc: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Alexandre Courbot <acourbot@nvidia.com> Acked-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-09-21ARM: plat-iop: pass physical base for GPIOLinus Walleij1-1/+1
This alters the IOP platforms to pass a physical base for their GPIO blocks and alters the driver to remap it when probing instead of relying on the virtual addresses to be used. Cc: Lennert Buytenhek <kernel@wantstofly.org> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Mikael Pettersson <mikpe@it.uu.se> Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-09-21gpio: iop: use readl/writel accessorsLinus Walleij1-8/+16
Use the standard 32bit I/O accessors instead of just assigning addresses. Cc: Lennert Buytenhek <kernel@wantstofly.org> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Mikael Pettersson <mikpe@it.uu.se> Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-09-21ARM: plat-iop: instantiate GPIO from platform deviceLinus Walleij1-2/+34
This converts the IOP32x and IOP33x platforms to pass their base address offset by a resource attached to a platform device instead of using static offset macros implicitly passed through <linux/gpio.h> including <mach/gpio.h>. Delete the local <mach/gpio.h> and <asm/hardware/iop3xx-gpio.h> headers and remove the selection of NEED_MACH_GPIO_H. Pass the virtual address as a resource in the platform device at this point for bisectability, next patch will pass the physical address as is custom. Cc: Lennert Buytenhek <kernel@wantstofly.org> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Mikael Pettersson <mikpe@it.uu.se> Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-09-21ARM: plat-iop: remove custom complex GPIO implementationLinus Walleij1-6/+3
The kernel will now only use gpiolib to access GPIOs, so remove the complex GPIO flag and the custom implementation. Cc: Lennert Buytenhek <kernel@wantstofly.org> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Mikael Pettersson <mikpe@it.uu.se> Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-09-21gpio: decouple the IOP GPIO driver from platformLinus Walleij1-2/+2
This removes the only dependence between the IOP GPIO driver and the GENERIC_GPIO header in <mach/gpio.h> and its common implementation in the <asm/*> namespace by copying the one constant it is using into the driver file. Cc: Lennert Buytenhek <kernel@wantstofly.org> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Mikael Pettersson <mikpe@it.uu.se> Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-09-21ARM: plat-iop: move the GPIO driver to drivers/gpioLinus Walleij1-0/+93
Move the IOP GPIO driver to live with its siblings in the GPIO subsystem. Cc: Lennert Buytenhek <kernel@wantstofly.org> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Mikael Pettersson <mikpe@it.uu.se> Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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