linux-toradex.git/drivers/pinctrl/pinmux.h, branch v6.4-rc6

pinctrl: Clean up headers

2022-10-24T14:06:48+00:00

There is a few things done:
- include only the headers we are direct user of
- when pointer is in use, provide a forward declaration
- add missing headers
- group generic headers and subsystem headers
- sort each group alphabetically

While at it, fix some awkward indentations.

Signed-off-by: Andy Shevchenko

pinctrl: add one more "const" for generic function groups

2021-12-22T01:57:27+00:00

Generic code doesn't modify those strings and .get_function_groups
callback has that extra "const" as well. This allows more flexibility in
GENERIC_PINMUX_FUNCTIONS users.

Signed-off-by: Rafał Miłecki 
Link: https://lore.kernel.org/r/20211216162206.8027-4-zajec5@gmail.com
Signed-off-by: Linus Walleij

pinctrl/gpio: Take MUX usage into account

2019-08-23T09:09:41+00:00

The user space like gpioinfo only see the GPIO usage but not the
MUX usage (e.g. I2C or SPI usage) of a pin. As a user we want
to know which pin is free/safe to use. So take the MUX usage of
strict pinmux controllers into account to get a more realistic
view for ioctl GPIO_GET_LINEINFO_IOCTL.

Signed-off-by: Stefan Wahren 
Tested-by: Ramon Fried 
Signed-off-by: Ramon Fried 
Link: https://lore.kernel.org/r/20190814110035.13451-1-ramon.fried@linux.intel.com
Acked-by: Stefan Wahren 
Signed-off-by: Linus Walleij

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194

2019-05-30T18:29:22+00:00

Based on 1 normalized pattern(s):

  license terms gnu general public license gpl version 2

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 161 file(s).

Signed-off-by: Thomas Gleixner 
Reviewed-by: Allison Randal 
Reviewed-by: Alexios Zavras 
Reviewed-by: Steve Winslow 
Reviewed-by: Richard Fontana 
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190528170027.447718015@linutronix.de
Signed-off-by: Greg Kroah-Hartman

pinctrl: core: Remove broken remove_last group and pinmux functions

2018-07-17T08:49:49+00:00

With no users left for these functions let's remove them.

Reported-by: H. Nikolaus Schaller 
Cc: Christ van Willegen 
Cc: Haojian Zhuang 
Cc: Jacopo Mondi 
Cc: Paul Cercueil 
Cc: Sean Wang 
Signed-off-by: Tony Lindgren 
Tested-By: H. Nikolaus Schaller 
Reviewed-by: Andy Shevchenko 
Signed-off-by: Linus Walleij

pinctrl: move const qualifier before struct

2017-08-14T13:01:02+00:00

Update subsystem wide for consistency.

Signed-off-by: Masahiro Yamada 
Signed-off-by: Linus Walleij

pinctrl: core: Add generic pinctrl functions for managing groups

2017-01-03T08:26:18+00:00

We can add generic helpers for function handling for cases where the pin
controller driver does not need to use static arrays.

Signed-off-by: Tony Lindgren 
[Renamed the Kconfig item and moved things around]
Signed-off-by: Linus Walleij

pinctrl: ifdef CONFIG_DEBUG_FS cleanup

2012-04-18T11:53:12+00:00

Only provide prototypes for pin{mux,conf}.c debugfs-related functions
when both CONFIG_PIN* /and/ CONFIG_DEBUG_FS are enabled, otherwise
provide static inlines.

Signed-off-by: Stephen Warren 
Signed-off-by: Linus Walleij

pinctrl: enhance mapping table to support pin config operations

2012-03-05T10:25:11+00:00

The pinctrl mapping table can now contain entries to:
* Set the mux function of a pin group
* Apply a set of pin config options to a pin or a group

This allows pinctrl_select_state() to apply pin configs settings as well
as mux settings.

v3: Fix find_pinctrl() to iterate over the correct list.
   s/_MUX_CONFIGS_/_CONFIGS_/ in mapping table macros.
   Fix documentation to use correct mapping table macro.
v2: Added numerous extra PIN_MAP_*() special-case macros.
   Fixed kerneldoc typo. Delete pinctrl_get_pin_id() and
   replace it with pin_get_from_name(). Various minor fixes.
   Updates due to rebase.

Signed-off-by: Stephen Warren 
Acked-by: Dong Aisheng 
Signed-off-by: Linus Walleij

pinctrl: refactor struct pinctrl handling in core.c vs pinmux.c

2012-03-05T10:20:50+00:00

This change separates two aspects of struct pinctrl:

a) The data representation of the parsed mapping table, into:

   1) The top-level struct pinctrl object, a single entity returned
      by pinctrl_get().

   2) The parsed version of each mapping table entry, struct
      pinctrl_setting, of which there is one per mapping table entry.

b) The code that handles this; the code for (1) above is in core.c, and
   the code to parse/execute each entry in (2) above is in pinmux.c, while
   the iteration over multiple settings is lifted to core.c.

This will allow the following future changes:

1) pinctrl_get() API rework, so that struct pinctrl represents all states
   for the device, and the device can select between them without calling
   put()/get() again.

2) To support that, a struct pinctrl_state object will be inserted into
   the data model between the struct pinctrl and struct pinctrl_setting.

3) The mapping table will be extended to allow specification of pin config
   settings too. To support this, struct pinctrl_setting will be enhanced
   to store either mux settings or config settings, and functions will be
   added to pinconf.c to parse/execute pin configuration settings.

Signed-off-by: Stephen Warren 
Acked-by: Linus Walleij 
Acked-by: Dong Aisheng 
Signed-off-by: Linus Walleij