linux/drivers/gpio/devres.c, branch v4.19

gpio: Export devm_gpiod_get_from_of_node() for consumers

2018-01-12T10:05:24Z

We have been holding back on adding an API for fetching GPIO handles directly from device nodes, strongly preferring to get it from the spawn devices instead. The fwnode interface however already contains an API for doing this, as it is used for opaque device tree nodes or ACPI nodes for getting handles to LEDs and keys that use GPIO: those are specified as one child per LED/key in the device tree and are not individual devices. However regulators present a special problem as they already have helper functions to traverse the device tree from a regulator node and two levels down to fill in data, and as it already traverses GPIO nodes in its own way, and already holds a pointer to each regulators device tree node, it makes most sense to export an API to fetch the GPIO descriptor directly from the node. We only support the devm_* version for now, hopefully no non-devres version will be needed. Signed-off-by: Linus Walleij

gpio: devres: Improve kerneldoc

2017-08-14T13:01:13Z

Add missing descriptions for some parameters to match the code. Signed-off-by: Thierry Reding Signed-off-by: Linus Walleij

gpiolib: Fix spelling of 'successful'

2017-03-14T09:51:28Z

Remove extra 'l' in "successfull". Signed-off-by: Andy Shevchenko Signed-off-by: Linus Walleij

Merge branch 'ib-gpiod-flags' into devel

2017-02-05T22:14:23Z

gpio: Add the devm_fwnode_get_index_gpiod_from_child() helper

2017-02-04T20:28:51Z

devm_fwnode_get_gpiod_from_child() currently allows GPIO users to request a GPIO that is defined in a child fwnode instead of directly in the device fwnode. Extend this API by adding the devm_fwnode_get_index_gpiod_from_child() helper which does the same except you can also specify an index in case the 'xx-gpios' property describe several GPIOs. Signed-off-by: Boris Brezillon Signed-off-by: Linus Walleij

gpio: Rename devm_get_gpiod_from_child()

2017-02-04T20:27:26Z

Rename devm_get_gpiod_from_child() into devm_fwnode_get_gpiod_from_child() to reflect the fact that this function is operating on a fwnode object. Signed-off-by: Boris Brezillon Acked-by: Jacek Anaszewski Acked-by: Dmitry Torokhov Signed-off-by: Linus Walleij

Merge branch 'ib-gpiod-flags' into devel

2017-01-26T09:00:31Z

gpio: Pass GPIO label down to gpiod_request

2017-01-26T08:59:52Z

Currently all users of fwnode_get_named_gpiod() have no way to specify a label for the GPIO. So GPIOs listed in debugfs are shown with label "?". With this change a proper label is used. Also adjust all users so they can pass a label, properly retrieved from device tree properties. Signed-off-by: Alexander Stein Cc: Andy Shevchenko Acked-by: Jacek Anaszewski Acked-by: Bartlomiej Zolnierkiewicz Acked-by: Dmitry Torokhov Signed-off-by: Linus Walleij

gpiolib: Convert fwnode_get_named_gpiod() to configure GPIO

2017-01-26T08:59:32Z

Make fwnode_get_named_gpiod() consistent with the rest of gpiod_get() like API, i.e. configure GPIO pin immediately after request. Besides obvious clean up it will help to configure pins based on firmware provided resources. Reviewed-by: Mika Westerberg Signed-off-by: Andy Shevchenko Signed-off-by: Linus Walleij

gpio: devres: Use global array of gpio suffixes

2017-01-09T18:56:58Z

We have already a global array of possible GPIO suffixes. Use it here instead of another copy of them. Unfortunately this will not reduce the memory footprint, though allows to easy maintain list in only one place. Signed-off-by: Andy Shevchenko Signed-off-by: Linus Walleij