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path: root/drivers/gpio/gpio-stp-xway.c
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2019-04-05drivers: gpio: stp-xway: use devm_platform_ioremap_resource()Enrico Weigelt, metux IT consult1-3/+1
Use the new helper that wraps the calls to platform_get_resource() and devm_ioremap_resource() together. Signed-off-by: Enrico Weigelt, metux IT consult <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
2018-07-02gpio: stp-xway: Include the right headerLinus Walleij1-2/+1
This is a GPIO driver, include only <linux/gpio/driver.h>. Signed-off-by: Linus Walleij <[email protected]>
2018-07-02gpio: stp-xway: Implement get callbackMathias Kresin1-0/+15
Add an implementation to get the current GPIO state. The callback is used by the leds-gpio driver for example, in case the current LED/GPIO state should be kept during driver load. Signed-off-by: Mathias Kresin <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
2016-12-30gpio: update my email addressJohn Crispin1-1/+1
This patch updates my email address as I no longer have access to the old one. Signed-off-by: John Crispin <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
2016-02-23gpio: stp-xway: Use devm_gpiochip_add_data() for gpio registrationLaxman Dewangan1-1/+1
Use devm_gpiochip_add_data() for GPIO registration. Signed-off-by: Laxman Dewangan <[email protected]>
2016-01-05gpio: stp-xway: use gpiochip data pointerLinus Walleij1-5/+3
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: Martin Blumenstingl <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
2015-11-19gpio: change member .dev to .parentLinus Walleij1-2/+2
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]>
2015-06-02gpio: stp-xway: Use the of_property_read_u32 helperMartin Blumenstingl1-16/+11
This removes some redundant code but does not have any functional impact. Signed-off-by: Martin Blumenstingl <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
2015-06-01gpio-stp-xway: Fix enabling the highest bit of the PHY LEDsMartin Blumenstingl1-1/+1
0x3 only masks two bits, but three bits have to be allowed. This fixes GPHY0 LED2 (which is the highest bit of phy2) on my board. Signed-off-by: Martin Blumenstingl <[email protected]> Acked-by: John Crispin <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
2014-12-14Merge tag 'driver-core-3.19-rc1' of ↵Linus Torvalds1-1/+0
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core update from Greg KH: "Here's the set of driver core patches for 3.19-rc1. They are dominated by the removal of the .owner field in platform drivers. They touch a lot of files, but they are "simple" changes, just removing a line in a structure. Other than that, a few minor driver core and debugfs changes. There are some ath9k patches coming in through this tree that have been acked by the wireless maintainers as they relied on the debugfs changes. Everything has been in linux-next for a while" * tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits) Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries" fs: debugfs: add forward declaration for struct device type firmware class: Deletion of an unnecessary check before the function call "vunmap" firmware loader: fix hung task warning dump devcoredump: provide a one-way disable function device: Add dev_<level>_once variants ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries ath: use seq_file api for ath9k debugfs files debugfs: add helper function to create device related seq_file drivers/base: cacheinfo: remove noisy error boot message Revert "core: platform: add warning if driver has no owner" drivers: base: support cpu cache information interface to userspace via sysfs drivers: base: add cpu_device_create to support per-cpu devices topology: replace custom attribute macros with standard DEVICE_ATTR* cpumask: factor out show_cpumap into separate helper function driver core: Fix unbalanced device reference in drivers_probe driver core: fix race with userland in device_add() sysfs/kernfs: make read requests on pre-alloc files use the buffer. sysfs/kernfs: allow attributes to request write buffer be pre-allocated. fs: sysfs: return EGBIG on write if offset is larger than file size ...
2014-10-28gpio: gpio-stp-xway: remove duplicate check on resourceVarka Bhadram1-6/+2
Sanity check on resource happening with devm_ioremap_resource(). Signed-off-by: Varka Bhadram <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
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 <[email protected]>
2014-09-30gpio: staticize xway_stp_init()Linus Walleij1-1/+1
This initcall is only called from the driver itself, staticize it. Signed-off-by: Linus Walleij <[email protected]>
2013-03-27gpio: gpio-stp-xway.c: fix checkpatch errorLaurent Navet1-1/+1
Fix : gpio/gpio-stp-xway.c:220: ERROR: trailing whitespace Signed-off-by: Laurent Navet <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
2013-01-22gpio: Convert to devm_ioremap_resource()Thierry Reding1-5/+4
Convert all uses of devm_request_and_ioremap() to the newly introduced devm_ioremap_resource() which provides more consistent error handling. devm_ioremap_resource() provides its own error messages so all explicit error messages can be removed from the failure code paths. Signed-off-by: Thierry Reding <[email protected]> Cc: Grant Likely <[email protected]> Cc: Linus Walleij <[email protected]> Acked-by: Viresh Kumar <[email protected]> Tested-by: Gregory CLEMENT <[email protected]> Acked-by: Gregory CLEMENT <[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]>
2012-09-13GPIO: MIPS: lantiq: fix overflow inside stp-xway driverJohn Crispin1-1/+1
The driver was using a 16 bit field for storing the shadow value of the shift register cascade. This resulted in only the first 2 shift registeres receiving the correct data. The third shift register would always receive 0x00. Fix this by using a 32bit field for the shadow value. Signed-off-by: John Crispin <[email protected]> Cc: [email protected]
2012-05-21GPIO: MIPS: lantiq: convert gpio-stp-xway to OFJohn Crispin1-92/+241
Implements OF support and add code to load custom properties from the DT. The Serial To Parallel (STP) is found on MIPS based Lantiq socs. It is a peripheral controller used to drive external shift register cascades. At most 3 groups of 8 bits can be driven. The hardware is able to allow the DSL modem to drive the 2 LSBs of the cascade automatically. Newer socs are also able to automatically drive some pins via the internal PHYs. The driver currently only supports output functionality. Patches for the input feature found on newer generations of the soc will be provided in a later series. Signed-off-by: John Crispin <[email protected]> Cc: [email protected] Cc: [email protected] Acked-by: Grant Likely <[email protected]> Patchwork: https://patchwork.linux-mips.org/patch/3839/ Signed-off-by: Ralf Baechle <[email protected]>
2012-05-21GPIO: MIPS: lantiq: move gpio-stp and gpio-ebu to the subsystem folderJohn Crispin1-0/+152
Move the 2 drivers from arch/mips/lantiq/xway/ to the subsystem and make them buildable. The following 2 patches will convert the drivers to OF. Signed-off-by: John Crispin <[email protected]> Cc: [email protected] Cc: [email protected] Acked-by: Grant Likely <[email protected]> Patchwork: https://patchwork.linux-mips.org/patch/3838/ Signed-off-by: Ralf Baechle <[email protected]>
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