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path: root/drivers/gpio/gpio-wm8994.c
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2018-09-17gpio: wm8xxx: Cut down on boilerplateLinus Walleij1-5/+1
Just use the SPDX license tag for these drivers. Cc: [email protected] Cc: Charles Keepax <[email protected]> Cc: Mark Brown <[email protected]> Acked-by: Richard Fitzgerald <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
2018-09-17gpio: wm8xxx: Use the right headerLinus Walleij1-1/+1
These are GPIO drivers so just include <linux/gpio/driver.h>. Cc: [email protected] Cc: Charles Keepax <[email protected]> Cc: Mark Brown <[email protected]> Acked-by: Richard Fitzgerald <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
2017-01-26pinctrl / gpio: Introduce .set_config() callback for GPIO chipsMika Westerberg1-7/+6
Currently we already have two pin configuration related callbacks available for GPIO chips .set_single_ended() and .set_debounce(). In future we expect to have even more, which does not scale well if we need to add yet another callback to the GPIO chip structure for each possible configuration parameter. Better solution is to reuse what we already have available in the generic pinconf. To support this, we introduce a new .set_config() callback for GPIO chips. The callback takes a single packed pin configuration value as parameter. This can then be extended easily beyond what is currently supported by just adding new types to the generic pinconf enum. If the GPIO driver is backed up by a pinctrl driver the GPIO driver can just assign gpiochip_generic_config() (introduced in this patch) to .set_config and that will take care configuration requests are directed to the pinctrl driver. We then convert the existing drivers over .set_config() and finally remove the .set_single_ended() and .set_debounce() callbacks. Suggested-by: Linus Walleij <[email protected]> Signed-off-by: Mika Westerberg <[email protected]> Reviewed-by: Andy Shevchenko <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
2016-09-13gpio: constify gpio_chip structuresJulia Lawall1-1/+1
These structures are only used to copy into other structures, so declare them as const. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r disable optional_qualifier@ identifier i; position p; @@ static struct gpio_chip i@p = { ... }; @ok@ identifier r.i; expression e; position p; @@ e = i@p; @bad@ position p != {r.p,ok.p}; identifier r.i; struct gpio_chip e; @@ e@i@p @depends on !bad disable optional_qualifier@ identifier r.i; @@ static +const struct gpio_chip i = { ... }; // </smpl> Signed-off-by: Julia Lawall <[email protected]> Acked-by: Joachim Eastwood <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
2016-06-07gpio: remove redundant owner assignments of driversMasahiro Yamada1-1/+0
A platform_driver need not set an owner since it will be populated by platform_driver_register(). Likewise for mcb_driver (gpio-menz127.c). Signed-off-by: Masahiro Yamada <[email protected]> Acked-by: Charles Keepax <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
2016-04-14gpio: wm8994: use the new open drain callbackLinus Walleij1-1/+24
The WM8994 GPIOs clearly have a dedicated open drain control register. Implement support for controlling this from GPIO descriptor tables or other hardware descriptions such as device tree by implementing the .set_single_ended() callback. Before this patch, lines requesting open drain will just be switched to input mode by the framework, thus emulating open drain. But the hardware can do the real thing, so let's support that. As part of this, rename the debugfs string for output mode from "CMOS" to "push-pull" because it is the term used in the framework to signify a tomem-pole CMOS output. Cc: [email protected] Cc: Mark Brown <[email protected]> Acked-by: Charles Keepax <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
2016-02-23gpio: wm8994: Use devm_gpiochip_add_data() for gpio registrationLaxman Dewangan1-14/+3
Use devm_gpiochip_add_data() for GPIO registration and remove the need of driver callback .remove. Signed-off-by: Laxman Dewangan <[email protected]> Cc: [email protected] Acked-by: Charles Keepax <[email protected]>
2016-01-05gpio: wm8994: use gpiochip data pointerLinus Walleij1-13/+8
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: [email protected] Cc: Mark Brown <[email protected]> Acked-by: Charles Keepax <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
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 <[email protected]> Cc: Rafał Miłecki <[email protected]> Cc: Richard Purdie <[email protected]> Cc: Mauro Carvalho Chehab <[email protected]> Cc: Alek Du <[email protected]> Cc: Jaroslav Kysela <[email protected]> Cc: Takashi Iwai <[email protected]> Acked-by: Dmitry Torokhov <[email protected]> Acked-by: Greg Kroah-Hartman <[email protected]> Acked-by: Lee Jones <[email protected]> Acked-by: Jiri Kosina <[email protected]> Acked-by: Hans-Christian Egtvedt <[email protected]> Acked-by: Jacek Anaszewski <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
2014-07-22gpio: remove all usage of gpio_remove retval in driver/gpioabdoulaye berthe1-1/+2
Signed-off-by: abdoulaye berthe <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
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 <[email protected]>
2013-08-16gpio: use dev_get_platdata()Jingoo Han1-1/+1
Use the wrapper function for retrieving the platform data instead of accessing dev->platform_data directly. Signed-off-by: Jingoo Han <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
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 <[email protected]> Cc: Grant Likely <[email protected]> Acked-by: Linus Walleij <[email protected]> Cc: Peter Tyser <[email protected]> Acked-by: Mark Brown <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
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 <[email protected]> Cc: Grant Likely <[email protected]> Cc: Peter Tyser <[email protected]> Cc: Santosh Shilimkar <[email protected]> Cc: Kevin Hilman <[email protected]> Acked-by: Linus Walleij <[email protected]> Acked-by: Mark Brown <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
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 <[email protected]> Cc: Grant Likely <[email protected]> Cc: Peter Tyser <[email protected]> Acked-by: Linus Walleij <[email protected]> Acked-by: Mark Brown <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2012-07-26Merge tag 'gpio-for-v3.6' of ↵Linus Torvalds1-12/+5
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO changes from Linus Walleij: - New driver for AMD-8111 southbridge GPIOs - New driver for Wolfson Micro Arizona devices - Propagate device tree parse errors - Probe deferral finalizations - all expected calls to GPIO will now hopefully request deferral where apropriate - Misc updates to TCA6424, WM8994, LPC32xx, PCF857x, Samsung MXC, OMAP and PCA953X drivers. Fix up gpio_idx conflicts in drivers/gpio/gpio-mxc.c * tag 'gpio-for-v3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: gpio: of_get_named_gpio_flags() return -EPROBE_DEFER if GPIO not yet available gpiolib: Defer failed gpio requests by default MAINTAINERS: add entry OMAP GPIO driver gpio/pca953x: increase variables size to support 24 bit of data GPIO: PCA953X: Increase size of invert variable to support 24 bit gpio/omap: move bank->dbck initialization to omap_gpio_mod_init() gpio/mxc: use the edge_sel feature if available gpio: propagate of_parse_phandle_with_args errors gpio: samsung: add flags specifier to device-tree binding gpiolib: Add support for Wolfson Microelectronics Arizona class devices gpio: gpio-lpc32xx: Add gpio_to_irq mapping gpio: pcf857x: share 8/16 bit access functions gpio: LPC32xx: Driver cleanup MAINTAINERS: Add Wolfson gpiolib drivers to the Wolfson entry gpiolib: wm8994: Convert to devm_kzalloc() gpiolib: wm8994: Use irq_domain mappings for gpios gpio: add a driver for GPIO pins found on AMD-8111 south bridge chips gpio/tca6424: merge I2C transactions, remove cast gpio/of: fix a typo of comment message
2012-07-12gpiolib: wm8994: Convert to devm_kzalloc()Mark Brown1-8/+3
Signed-off-by: Mark Brown <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
2012-07-12gpiolib: wm8994: Use irq_domain mappings for gpiosMark Brown1-4/+2
This has no practical impact at present since we don't support device tree so any user must have set an irq_base but this will in future allow a transition to device tree with minimal invasiveness. Signed-off-by: Mark Brown <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
2012-07-05gpiolib: wm8994: Pay attention to the value set when enabling as outputMark Brown1-1/+4
Not paying attention to the value being set is a bad thing because it means that we'll not set the hardware up to reflect what was requested. Not setting the hardware up to reflect what was requested means that the caller won't get the results they wanted. Signed-off-by: Mark Brown <[email protected]> Cc: [email protected] Signed-off-by: Linus Walleij <[email protected]>
2012-01-02gpio: Add decode of WM8994 GPIO configurationMark Brown1-2/+77
For the human reader. Signed-off-by: Mark Brown <[email protected]> Acked-by: Linus Walleij <[email protected]> Signed-off-by: Grant Likely <[email protected]>
2011-06-06gpio: reorganize driversGrant Likely1-0/+242
Sort the gpio makefile and enforce the naming convention gpio-*.c for gpio drivers. v2: cleaned up filenames in Kconfig and comment blocks v3: fixup use of BASIC_MMIO to GENERIC_GPIO for mxc Signed-off-by: Grant Likely <[email protected]>
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