kernel/include/linux/pinctrl/pinconf-generic.h, branch linux-3.17.y

pinctrl: Adds slew-rate, input-enable/disable

2013-12-16T09:55:03Z

This commit adds slew-rate and input-enable/disable support for pinconf -generic. Signed-off-by: Sherman Yin Signed-off-by: Linus Walleij

pinctrl: provide documentation pointer

2013-12-03T09:08:46Z

The PIN_CONFIG_OUTPUT parameter is really tricky to understand and needs an explicit pointer to the documentation. Cc: Tomasz Figa Cc: Kyungmin Park Signed-off-by: Linus Walleij

pinctrl: utils : add support to pass config type in generic util APIs

2013-08-23T06:56:32Z

Add support to pass the config type like GROUP or PIN when using the utils or generic pin configuration APIs. This will make the APIs more generic. Added additional inline APIs such that it can be use directly as callback for the pinctrl_ops. Changes from V1: - Remove separate implementation for pins and group for pinctrl_utils_dt_free_map and improve this function to support both i.e. PINS and GROUPs. Signed-off-by: Laxman Dewangan Reviewed-by: Stephen Warren Tested-by: Stephen Warren Signed-off-by: Linus Walleij

pinctrl: add includes and ifdefs for non-DT builds

2013-08-15T20:12:46Z

Commit e81c8f18afc4fdd6e34d8c83814b8b5134dbb30f "pinctrl: pinconf-generic: add generic APIs for mapping pinctrl node" Added function prototypes with implicit dependencies on other header files causing build warnings like this: In file included from arch/arm/mach-ux500/board-mop500-pins.c:12:0: include/linux/pinctrl/pinconf-generic.h:142:3: warning: 'struct device_node' declared inside parameter list [enabled by default] unsigned *reserved_maps, unsigned *num_maps); ^ include/linux/pinctrl/pinconf-generic.h:142:3: warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default] include/linux/pinctrl/pinconf-generic.h:142:3: warning: 'struct pinctrl_dev' declared inside parameter list [enabled by default] include/linux/pinctrl/pinconf-generic.h:145:3: warning: 'struct device_node' declared inside parameter list [enabled by default] unsigned *num_maps); ^ Let's just add ifdefs for non-DT systems (the actual code is already ifdefed) and #include to get the most important structs and forward-declare the pinctrl core structs. Reported-by: Olof Johansson Cc: Laxman Dewangan Signed-off-by: Linus Walleij

pinctrl: pinconf-generic: add generic APIs for mapping pinctrl node

2013-08-14T19:00:41Z

Add generic APIs to map the DT node and its sub node in pinconf generic driver. These APIs can be used from driver to parse the DT node who uses the pinconf generic APIs for defining their nodes. Changes from V1: - Add generic property for pins and functions in pinconf-generic. - Add APIs to map the DT and subnode. - Move common utils APIs to the pinctrl-utils from this file. - Update the binding document accordingly. Changes from V2: - Rebased the pinctrl binding doc on top of Stephen's cleanup. - Rename properties "pinctrl-pins" and "pinctrl-function" to "pins" and "function". Signed-off-by: Laxman Dewangan Reviewed-by: Stephen Warren Signed-off-by: Linus Walleij

pinctrl: set unit for debounce time pinconfig to usec

2013-06-25T13:34:44Z

Currently the debounce time pinconfig option uses an unspecified "time units" unit. As pinconfig options should use SI units and a real unit is also necessary for generic dt bindings, change it to usec. Currently no driver is using the generic pinconfig option for this, so the unit change is safe to do. Signed-off-by: Heiko Stuebner Reviewed-by: James Hogan Signed-off-by: Linus Walleij

pinctrl: more clarifications for generic pull configs

2013-06-25T13:33:57Z

PULL_PIN_DEFAULT is meant for hardware completely hiding any pull settings from the driver, so that it's really only possible to turn the pull on or off, but it not being possible to determine any pull settings from software. Also the binding-documentation for the pull arguments did not match the changes to the expected values. Signed-off-by: Heiko Stuebner Reviewed-by: James Hogan Signed-off-by: Linus Walleij

pinctrl: establish pull-up/pull-down terminology

2013-06-17T16:18:32Z

It is counter-intuitive to have "0" mean disable in a boolean manner for electronic properties of pins such as pull-up and pull-down. Therefore, define that a pull-up/pull-down argument of 0 to such a generic option means that the pin is short-circuited to VDD or GROUND. Pull disablement shall be done using PIN_CONFIG_BIAS_DISABLE. Cc: James Hogan Cc: Laurent Pinchart Acked-by Heiko Stuebner Acked-by: Laurent Pinchart Signed-off-by: Linus Walleij

pinctrl: add pinconf-generic define for a pin-default pull

2013-06-16T09:56:51Z

There exist controllers that don't support to set the pull to up or down separately but instead automatically set the pull direction based on embedded knowledge inside the controller, for example depending on the selected mux function of the pin. Therefore this patch adds another config option to use this default pull-state for a pin where it is not possible to know or decide if the pin will be pulled up or down. Signed-off-by: Heiko Stuebner Reviewed-by: Stephen Warren Signed-off-by: Linus Walleij

pinconf-generic: add BIAS_BUS_HOLD pinconf

2013-06-16T09:56:50Z

Add a new PIN_CONFIG_BIAS_BUS_HOLD pin configuration for a bus holder pin mode (also known as bus keeper, or repeater). This is a weak latch which drives the last value on a tristate bus. Another device on the bus can drive the bus high or low before going tristate to change the value driven by the pin. Signed-off-by: James Hogan Cc: Linus Walleij Signed-off-by: Linus Walleij