linux-toradex.git/drivers/pinctrl/pinconf-generic.c, branch v3.12-rc6

pinctrl: pinconf-generic: Remove ti prefix in dev_err messages

2013-08-29T07:48:13+00:00

It does not make sense to show ti prefix in pinconf_generic_dt_subnode_to_map()
dev_err messages.

Signed-off-by: Axel Lin 
Signed-off-by: Linus Walleij

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

2013-08-23T06:56:32+00:00

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

2013-08-14T19:00:41+00:00

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: remove bindings for pinconf options needing more thought

2013-06-25T13:34:55+00:00

Some options currently take arguments in unspecified driver-specific units.
As pointed out by Stephen Warren, driver specific values should not be part
of generic devicetree bindings describing the hardware.

Therefore remove the critical bindings again, before they become part of
an official release.

Signed-off-by: Heiko Stuebner 
Reviewed-by: James Hogan 
Signed-off-by: Linus Walleij

pinctrl: set unit for debounce time pinconfig to usec

2013-06-25T13:34:44+00:00

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: dynamically alloc temp array when parsing dt pinconf options

2013-06-17T16:18:31+00:00

Allocating the temorary array in pinconf_generic_parse_dt_config on stack
might cause problems later on, when the number of options grows over time.
Therefore also allocate this array dynamically to be on the safe side.

Suggested-by: Laurent Pinchart 
Signed-off-by: Heiko Stuebner 
Reviewed-by: James Hogan 
Signed-off-by: Linus Walleij

pinctrl: handle zero found dt pinconfig properties better

2013-06-17T16:18:31+00:00

This adds a shortcut when no valid pinconf properties are found
in the parsed dt node, to set the values immediately and return.

Suggested-by: Laurent Pinchart 
Signed-off-by: Heiko Stuebner 
Reviewed-by: James Hogan 
Signed-off-by: Linus Walleij

pinctrl: clarify some dt pinconfig options

2013-06-17T16:18:30+00:00

The bias-pull-* options use values > 0 to indicate that the pull should
be activated and optionally also indicate the strength of the pull.
Therefore use an default value of 1 for these options.

Split the low-power-mode option into low-power-enable and -disable.

Update the documentation to describe the param arguments better.

Reported-by: James Hogan 
Signed-off-by: Heiko Stuebner 
Signed-off-by: Linus Walleij

pinctrl: add function to parse generic pinconfig properties from a dt node

2013-06-16T09:57:32+00:00

pinconf_generic_parse_dt_config() takes a node as input and generates an
array of generic pinconfig values from the properties of this node.

As I couldn't find a mechanism to count the number of properties of a node
the function uses internally an array to accept one of parameter and copies
the real present options to a smaller variable at its end.

Signed-off-by: Heiko Stuebner 
Signed-off-by: Linus Walleij

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

2013-06-16T09:56:51+00:00

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