linux-dev - Linux kernel development work

Age	Commit message (Collapse)	Author	Files	Lines
2018-05-16	gpio: lp3943: Include the right header	Linus Walleij	1	-1/+1
	This is a driver so only include <linux/gpio/driver.h>. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-03-09	Revert "gpio: lp3943: Drop pin_used and lp3943_gpio_request/lp3943_gpio_free"	Linus Walleij	1	-0/+22
	This reverts commit 3fab91ea284a3b795327dda915a3c150a49e4be2.
2016-03-09	gpio: lp3943: Drop pin_used and lp3943_gpio_request/lp3943_gpio_free	Axel Lin	1	-22/+0
	The implementation of lp3943_gpio_request/lp3943_gpio_free test pin_used for tracing the pin usage. However, gpiolib already checks FLAG_REQUESTED flag for the same purpose. So remove the redundant implementation. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-23	gpio: lp3943: Use devm_gpiochip_add_data() for gpio registration	Laxman Dewangan	1	-10/+2
	Use devm_gpiochip_add_data() for GPIO registration and remove the need of driver callback .remove. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
2016-01-05	gpio: lp3943: use gpiochip data pointer	Linus Walleij	1	-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(). Cc: Milo Kim <milo.kim@ti.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-11-19	gpio: change member .dev to .parent	Linus Walleij	1	-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>
2014-10-20	gpio: drop owner assignment from platform_drivers	Wolfram Sang	1	-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>
2014-07-22	gpio: remove all usage of gpio_remove retval in driver/gpio	abdoulaye berthe	1	-1/+2
	Signed-off-by: abdoulaye berthe <berthe.ab@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-01-21	gpio: lp3943: Remove redundant of_match_ptr helper	Sachin Kamat	1	-1/+1
	'lp3943_gpio_of_match' is always compiled in. Hence the helper macro is not needed. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-01-21	gpio: add LP3943 I2C GPIO expander driver	Milo Kim	1	-0/+242
	This is one of LP3943 MFD driver. LP3943 is configurable as a GPIO expander, up to 16 GPIOs. * Application note: how to configure LP3943 as a GPIO expander http://www.ti.com/lit/an/snva287a/snva287a.pdf * Supported GPIO controller operations request, free, direction_input, direction_output, get and set * GPIO direction register not supported LP3943 doesn't have the GPIO direction register. It only provides input and output status registers. So, private data for the direction should be handled manually. This variable is updated whenever the direction is changed and used in 'get' operation. * Pin assignment A driver data, 'pin_used' is checked when a GPIO is requested. If the GPIO is already assigned, then returns as failure. If the GPIO is available, 'pin_used' is set. When the GPIO is not used anymore, then it is cleared. It is defined as unsigned long type for atomic bit operation APIs, but only LSB 16bits are used because LP3943 has 16 outputs. Signed-off-by: Milo Kim <milo.kim@ti.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>