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path: root/drivers/gpio/gpio-f7188x.c
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2022-09-01gpio-f7188x: use unique labels for banks/chipsHenning Schild1-69/+69
So that drivers building on top can find those pins with GPIO_LOOKUP helpers. Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Simon Guinot <simon.guinot@sequanux.org> Signed-off-by: Henning Schild <henning.schild@siemens.com> Acked-by: Bartosz Golaszewski <brgl@bgdev.pl> Link: https://lore.kernel.org/r/20220825104422.14156-5-henning.schild@siemens.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-09-01gpio-f7188x: Add GPIO support for Nuvoton NCT6116Henning Schild1-25/+79
Add GPIO support for Nuvoton NCT6116 chip. Nuvoton SuperIO chips are very similar to the ones from Fintek. In other subsystems they also share drivers and are called a family of drivers. For the GPIO subsystem the only difference is that the direction bit is reversed and that there is only one data bit per pin. On the SuperIO level the logical device is another one. On a chip level we do not have a manufacturer ID to check and also no revision. Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Simon Guinot <simon.guinot@sequanux.org> Signed-off-by: Henning Schild <henning.schild@siemens.com> Acked-by: Bartosz Golaszewski <brgl@bgdev.pl> Link: https://lore.kernel.org/r/20220825104422.14156-4-henning.schild@siemens.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-09-01gpio-f7188x: add a prefix to macros to keep gpio namespace cleanHenning Schild1-18/+18
Subsequent patches will touch that file, apply some nice to have style changes before actually adding functional changes. Signed-off-by: Henning Schild <henning.schild@siemens.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Bartosz Golaszewski <brgl@bgdev.pl> Link: https://lore.kernel.org/r/20220825104422.14156-3-henning.schild@siemens.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-09-01gpio-f7188x: switch over to using pr_fmtHenning Schild1-8/+9
Subsequent patches will touch that file, apply some nice to have style changes before actually adding functional changes. Signed-off-by: Henning Schild <henning.schild@siemens.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Simon Guinot <simon.guinot@sequanux.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Bartosz Golaszewski <brgl@bgdev.pl> Link: https://lore.kernel.org/r/20220825104422.14156-2-henning.schild@siemens.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2020-05-05gpio-f7188x: Add GPIO support for F81865Petteri Jokinen1-3/+30
Add GPIO support for Fintek F81865 chip. Datasheet: http://www.hardwaresecrets.com/datasheets/F81865_V028P.pdf Signed-off-by: Petteri Jokinen <petteri@kiho.fi> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2019-11-07gpio: Use new GPIO_LINE_DIRECTIONMatti Vaittinen1-1/+4
It's hard for occasional GPIO code reader/writer to know if values 0/1 equal to IN or OUT. Use defined GPIO_LINE_DIRECTION_IN and GPIO_LINE_DIRECTION_OUT to help them out. NOTE - for gpio-amd-fch and gpio-bd9571mwv: This commit also changes the return value for direction get to equal 1 for direction INPUT. Prior this commit these drivers might have returned some other positive value but 1 for INPUT. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Acked-by: Scott Branden <scott.branden@broadcom.com> Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com> Reviewed-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com> Acked-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152Thomas Gleixner1-5/+1
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-22gpio-f7188x: add support Fintek F81804 & F81966Steffen Kothe1-1/+23
Basic implementation of driver is used to support Fintek F81804 & F81966 gpios with custom register set. Signed-off-by: Steffen Kothe <steffen.kothe.gc1993@googlemail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-28gpio: f7188x: Add a missing breakDan Carpenter1-0/+1
A break statement was obviously intended here. Fixes: d69843e416d3 ("gpio: f7188x: Add F71889A GPIO support.") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-07gpio: f7188x: Add F71889A GPIO support.Marty Plummer1-2/+21
Add F71889A GPIO support. Fintek F71889A is a SuperIO. It contains HWMON/GPIO/Serial Ports. Datasheet: http://www.alldatasheet.com/datasheet-pdf/pdf/459076/FINTEK/F71889A.html Its virtually identical to the F71889F superio as far as gpios go. One oddity is GPIO2 at index 0xD0; the datasheet only lists gpio's 7-5, but it logically seems that it should continue down to 0. I'm not sure if the driver can handle gpios that are shifted away from index 0 as it currently stands. Signed-off-by: Marty Plummer <netz.kernel@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-01-26pinctrl / gpio: Introduce .set_config() callback for GPIO chipsMika Westerberg1-10/+9
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 <linus.walleij@linaro.org> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-09-18gpio: f7188x: use gpiochip_get_data instead of container_ofAmitesh Singh1-2/+1
gpiochip_add_data is already used to add data pointer and chip. Lets rely on gpiochip_get_data which is getting used in other gpio_chip functions. Signed-off-by: Amitesh Singh <singh.amitesh@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-06-14gpio: f7188x: Implement get_direction.plr.vincent@gmail.com1-0/+22
Avoids gpiolib assumptions on initial pin direction, allowing user to observe power-on settings. Signed-off-by: Vincent Pelletier <plr.vincent@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-04-18gpio: f7188x: fix edit mistakeLinus Walleij1-1/+1
Fix a typo causing a build regression. Fixes: f90c6bdb690b ("gpio: f7188x: use the new open drain callback") Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-04-14gpio: f7188x: use the new open drain callbackLinus Walleij1-0/+33
The F7188x chips supports setting the pins in open drain mode. Activate the new .set_single_ended() callback. Cc: Peter Hung <hpeter@gmail.com> Cc: Andreas Bofjall <andreas@gazonk.org> Cc: Simon Guinot <simon.guinot@sequanux.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-04-14gpio: f7188x: use BIT() macroLinus Walleij1-9/+10
Align to how we handle bitmasks in most drivers in the subsystem: using the BIT(n) macro over (1 << n). Cc: Peter Hung <hpeter@gmail.com> Cc: Andreas Bofjall <andreas@gazonk.org> Cc: Simon Guinot <simon.guinot@sequanux.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-23gpio: f7188x: Use devm_gpiochip_add_data() for gpio registrationLaxman Dewangan1-24/+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>
2016-01-28gpio-f7188x: Add F81866 GPIO supportsPeter Hung1-3/+24
Add F81866 GPIO supports Fintek F81866 is a SuperIO. It contains HWMON/GPIO/Serial Ports. and it has totally 72(9x8 sets) gpio pins. Here is the PDF spec: http://www.alldatasheet.com/datasheet-pdf/pdf/459085/FINTEK/F81866AD-I.html The control method is the same with F7188x, but we should care the address of GPIO8x. GPIO address is below: GPIO0x based: 0xf0 GPIO1x based: 0xe0 GPIO2x based: 0xd0 GPIO3x based: 0xc0 GPIO4x based: 0xb0 GPIO5x based: 0xa0 GPIO6x based: 0x90 GPIO7x based: 0x80 GPIO8x based: 0x88 <-- not 0x70. Signed-off-by: Peter Hung <hpeter+linux_kernel@gmail.com> Acked-by: Simon Guinot <simon.guinot@sequanux.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-01-05gpio: f7188: use gpiochip data pointerLinus Walleij1-9/+5
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: Andreas Bofjall <andreas@gazonk.org> Cc: Simon Guinot <simon.guinot@sequanux.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-11-30gpio: use dev_get_platdata()Nizam Haider1-1/+1
Use the wrapper function for retrieving the platform data instead of accessing dev->platform_data directly. Signed-off-by: Nizam Haider <nijamh@cdac.in> 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>
2015-06-16gpio: Fix checkpatch.pl issuesDaniel Lockyer1-2/+2
This patch fixes some issues given by checkpatch. Fixes include bracket placement, spacing and indenting. Signed-off-by: Daniel Lockyer <thisisdaniellockyer@gmail.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-03-17gpio: f7188x: add GPIO support for F71869AAndreas Bofjall1-3/+23
Add support for the GPIOs found on the Fintek SuperI/O chip F71869A, such as the one found on the Jetway JNF99-525 motherboard, to the f7188x gpio driver. Signed-off-by: Andreas Bofjall <andreas@gazonk.org> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-03-17gpio: f7188x: add GPIO support for F71869Andreas Bofjall1-3/+22
Add support for the GPIOs found on the Fintek SuperI/O chip F71869, such as the one found on the Jetway NF96u-525 motherboard, to the f7188x gpio driver. Signed-off-by: Andreas Bofjall <andreas@gazonk.org> Tested-by: Les Schaffer <schaffer@optonline.net> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-03-17gpio: f7188x: correct spelling of "Fintek"Andreas Bofjall1-1/+1
The company is called "Fintek", not "Fintech". Fix it. Signed-off-by: Andreas Bofjall <andreas@gazonk.org> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> 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>
2014-07-22gpio: remove all usage of gpio_remove retval in driver/gpioabdoulaye berthe1-16/+2
Signed-off-by: abdoulaye berthe <berthe.ab@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-01-07gpio: f7188x: set can_sleep attributeSimon Guinot1-0/+1
Since request_muxed_region() is used to synchronize access on the Super-I/O controller, then the can_sleep attribute must be set for the f7188x GPIO chips. Signed-off-by: Simon Guinot <simon.guinot@sequanux.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-30gpio: add GPIO support for F71882FG and F71889FSimon Guinot1-0/+469
This patch adds support for the GPIOs found on the Fintek super-I/O chips F71882FG and F71889F. A super-I/O is a legacy I/O controller embedded on x86 motherboards. It is used to connect the low-bandwidth devices. Among others functions the F71882FG/F71889F provides: a parallel port, two serial ports, a keyboard controller, an hardware monitoring controller and some GPIO pins. Note that this super-I/Os are embedded on some Atom-based LaCie NASes. The GPIOs are used to control the LEDs and the hard drive power. Changes since v3: - Use request_muxed_region to protect the I/O ports against concurrent accesses. Changes since v2: - Remove useless NULL setters for driver data. Changes since v1: - Enhance the commit message by describing what is a Super-I/O. - Use self-explanatory names for the GPIO register macros. - Add a comment to explain the platform device and driver registration. - Fix gpio_get when GPIO is configured in input mode. I only had the hardware to check this mode recently... Signed-off-by: Simon Guinot <simon.guinot@sequanux.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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