linux-toradex.git/Documentation/pinctrl.txt, branch v4.7-rc2

pinctrl: move strict option to pinmux_ops

2015-05-06T12:45:19+00:00

While the pinmux_ops are ideally just a vtable for pin mux
calls, the "strict" setting belongs so intuitively with the
pin multiplexing that we should move it here anyway. Putting
it in the top pinctrl_desc makes no sense.

Cc: Sonic Zhang 
Signed-off-by: Linus Walleij

pinctrl: allow exlusive GPIO/mux pin allocation

2015-05-06T12:45:19+00:00

Disallow simultaneous use of the the GPIO and peripheral mux
functions by setting a flag "strict" in struct pinctrl_desc.

The blackfin pinmux and gpio controller doesn't allow user to
set up a pin for both GPIO and peripheral function. So, add flag
strict in struct pinctrl_desc to check both gpio_owner and
mux_owner before approving the pin request.

v2-changes:
- if strict flag is set, check gpio_owner and mux_onwer in if and
  else clause

v3-changes:
- add kerneldoc for this struct
- augment Documentation/pinctrl.txt

Signed-off-by: Sonic Zhang 
Signed-off-by: Linus Walleij

pinctrl: fix example .get_group_pins implementation signature

2015-03-18T01:02:20+00:00

The callback function signature has changed in commit a5818a8bd0 (pinctrl:
get_group_pins() const fixes)

Fixes: a5818a8bd0 ('pinctrl: get_group_pins() const fixes')
Cc: Stephen Warren 
Signed-off-by: Baruch Siach 
Signed-off-by: Linus Walleij

pinctrl: staticise example code funcs/structs

2015-03-18T01:02:18+00:00

Make the example code consistent wrt local function and struct definitions.

Signed-off-by: Baruch Siach 
Signed-off-by: Linus Walleij

pinctrl: remove doc mention of the enable/disable API

2015-03-18T01:02:18+00:00

This API has changed in commit 6e5e959dde0 (pinctrl: API changes to support
multiple states per device).

Fixes: 6e5e959dde0 ('pinctrl: API changes to support multiple states per device')
Cc: Stephen Warren 
Signed-off-by: Baruch Siach 
Signed-off-by: Linus Walleij

pinctrl: remove enable/disable callbacks from documentation

2015-03-18T01:02:17+00:00

Commit 03e9f0cac5d (pinctrl: clean up after enable refactoring) updated the
documentation to remove mention of disable(), and rename enable() to set_mux().
One in-text mention was forgotten. Fix this.

Fixes: 03e9f0cac5d ('pinctrl: clean up after enable refactoring')
Signed-off-by: Baruch Siach 
Signed-off-by: Linus Walleij

pinctrl: remove maxpin from documentation

2015-03-09T17:11:00+00:00

struct pinctrl_desc does not contain the maxpin member since commit 0d2006bbf0
(pinctrl: remove unnecessary max pin number).

Fixes: 0d2006bbf0 ('pinctrl: remove unnecessary max pin number')
Signed-off-by: Baruch Siach 
Signed-off-by: Linus Walleij

pinctrl: clean up after enable refactoring

2014-09-04T08:05:07+00:00

commit 2243a87d90b42eb38bc281957df3e57c712b5e56
"pinctrl: avoid duplicated calling enable_pinmux_setting for a pin"
removed the .disable callback from the struct pinmux_ops,
making the .enable() callback the only remaining callback.

However .enable() is a bad name as it seems to imply that a
muxing can also be disabled. Rename the callback to .set_mux()
and also take this opportunity to clean out any remaining
mentions of .disable() from the documentation.

Acked-by: Stephen Warren 
Acked-by: Bjorn Andersson 
Acked-by: Fan Wu 
Signed-off-by: Linus Walleij

pinctrl: Fix some typos and grammar issues in the documentation

2014-01-15T12:59:50+00:00

I had been trying to learn a bit more about the pinctrl subsystem, and I
realized several typos and grammar issues while going through the documentation.
I have probably not caught all the possible issues, but this change is
addressing several places for improvement.

Signed-off-by: Laszlo Papp 
Signed-off-by: Linus Walleij

pinctrl: add documentation for pinctrl_get_group_pins()

2013-10-16T13:35:21+00:00

This patch adds a short description of how to use the newly added
pinctrl_get_group_pins function to the pinctrl documentation.

Signed-off-by: Christian Ruppert 
Signed-off-by: Linus Walleij