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path: root/drivers/gpio/gpio-mb86s7x.c (follow)
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2017-10-31gpio: mb86s70: Revert "Return error if requesting an already assigned gpio"Ard Biesheuvel1-5/+0
Commit fd9c963c5661 ("gpio: mb86s70: Return error if requesting an already assigned gpio") adds code that infers from the state of the GPIO Pin Function Register (PFR) whether a GPIO has been assigned already. This assumes that the pin functions are set to 'peripheral' when the driver is loaded, which is not guaranteed. Also, the GPIO layer is perfectly capable of keeping track of which GPIOs have been assigned already, so we shouldn't need this check in the first place. This reverts commit fd9c963c5661af3403e77e312c0d9941773b6c1b. Cc: Axel Lin <axel.lin@ingics.com> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Acked-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-10-31gpio: mb86s7x: share with other SoCs as moduleArd Biesheuvel1-1/+6
In order to reuse this driver for the Socionext Synquacer SC2A11 SoC, which inherited this IP from Fujitsu, remove the ARCH_MB86S7X Kconfig dependency, and revert the changes that prevent it from being built as a module. This reverts commits d65aa4b67b4f47f303bdeaef1e4d42ef18e6b293 and d5610e514e92144d19bd5e39e5cf3804bbf85f3e. Cc: Geliang Tang <geliangtang@gmail.com> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> [Folded in module_platform_driver() fixup] Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-08-14gpio: mb86s7x: Handle return value of clk_prepare_enable.Arvind Yadav1-1/+3
clk_prepare_enable() can fail here and we must check its return value. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-11-22gpio: mb86s7x: use builtin_platform_driverGeliang Tang1-5/+1
Use builtin_platform_driver() helper to simplify the code. Signed-off-by: Geliang Tang <geliangtang@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-03-31gpio: mb86s7x: make explicitly non-modularPaul Gortmaker1-7/+1
The Kconfig for this driver is currently: config GPIO_MB86S7X bool "GPIO support for Fujitsu MB86S7x Platforms" ...meaning that it currently is not being built as a module by anyone. Lets remove the couple traces of modularity, so that when reading the driver there is no doubt it is builtin-only. Since module_init translates to device_initcall in the non-modular case, the init ordering remains unchanged with this commit. We also delete the MODULE_LICENSE tag etc. since all that information is already contained at the top of the file in the comments. Cc: Alexandre Courbot <gnurou@gmail.com> Cc: linux-gpio@vger.kernel.org Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-03-30gpio: mb86s7x: Remove redundant platform_set_drvdata() callAxel Lin1-2/+0
Set it once is enough, so remove the second platform_set_drvdata() call. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-01-05gpio: mb86s7x: use gpiochip data pointerLinus Walleij1-12/+7
This makes the driver use the data pointer added to the gpio_chip to store a pointer to the state container instead of relying on container_of(). Acked-By: Jassi Brar <jaswinder.singh@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-11-19gpio: change member .dev to .parentLinus Walleij1-1/+1
The name .dev in a struct is normally reserved for a struct device that is let us say a superclass to the thing described by the struct. struct gpio_chip stands out by confusingly using a struct device *dev to point to the parent device (such as a platform_device) that represents the hardware. As we want to give gpio_chip:s real devices, this is not working. We need to rename this member to parent. This was done by two coccinelle scripts, I guess it is possible to combine them into one, but I don't know such stuff. They look like this: @@ struct gpio_chip *var; @@ -var->dev +var->parent and: @@ struct gpio_chip var; @@ -var.dev +var.parent and: @@ struct bgpio_chip *var; @@ -var->gc.dev +var->gc.parent Plus a few instances of bgpio that I couldn't figure out how to teach Coccinelle to rewrite. This patch hits all over the place, but I *strongly* prefer this solution to any piecemal approaches that just exercise patch mechanics all over the place. It mainly hits drivers/gpio and drivers/pinctrl which is my own backyard anyway. Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Cc: Rafał Miłecki <zajec5@gmail.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Cc: Alek Du <alek.du@intel.com> Cc: Jaroslav Kysela <perex@perex.cz> Cc: Takashi Iwai <tiwai@suse.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Lee Jones <lee.jones@linaro.org> Acked-by: Jiri Kosina <jkosina@suse.cz> Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no> Acked-by: Jacek Anaszewski <j.anaszewski@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-03-02gpio: mb86s70: Return error if requesting an already assigned gpioAxel Lin1-0/+5
Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-01-20gpio: Add Fujitsu MB86S7x GPIO driverJassi Brar1-0/+232
Driver for Fujitsu MB86S7x SoCs that have a memory mapped GPIO controller. Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org> Signed-off-by: Andy Green <andy.green@linaro.org> Signed-off-by: Vincent Yang <Vincent.Yang@tw.fujitsu.com> Signed-off-by: Tetsuya Nuriya <nuriya.tetsuya@jp.fujitsu.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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