linux-toradex.git/Documentation/pinctrl.txt, branch v3.13-rc2

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

Documentation: pinctrl: Fix example code for pinctrl_register

2013-08-23T06:56:28+00:00

pinctrl_register() returns NULL on error, fix it.

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

Documentation: pinctrl: Fix example code

2013-08-14T20:49:23+00:00

__initdata should be placed between the variable name and equal
sign for the variable to be placed in the intended section. Fix
the examples.

Signed-off-by: Sachin Kamat 
Signed-off-by: Linus Walleij

pinctrl: elaborate a bit on arrangements in doc

2013-07-22T23:23:14+00:00

This elaborates a bit on the pin control and pin muxing
logic vs GPIO arangements in the hardware.

Inspired by some drawings in a mail from Christian Ruppert.
Both arrangements are confirmed to exist in practice.

Cc: Rob Landley 
Reviewed-by: Christian Ruppert 
Reviewed-by: Stephen Warren 
Signed-off-by: Linus Walleij

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2013-07-04T18:40:58+00:00

Pull trivial tree updates from Jiri Kosina:
 "The usual stuff from trivial tree"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (34 commits)
  treewide: relase -> release
  Documentation/cgroups/memory.txt: fix stat file documentation
  sysctl/net.txt: delete reference to obsolete 2.4.x kernel
  spinlock_api_smp.h: fix preprocessor comments
  treewide: Fix typo in printk
  doc: device tree: clarify stuff in usage-model.txt.
  open firmware: "/aliasas" -> "/aliases"
  md: bcache: Fixed a typo with the word 'arithmetic'
  irq/generic-chip: fix a few kernel-doc entries
  frv: Convert use of typedef ctl_table to struct ctl_table
  sgi: xpc: Convert use of typedef ctl_table to struct ctl_table
  doc: clk: Fix incorrect wording
  Documentation/arm/IXP4xx fix a typo
  Documentation/networking/ieee802154 fix a typo
  Documentation/DocBook/media/v4l fix a typo
  Documentation/video4linux/si476x.txt fix a typo
  Documentation/virtual/kvm/api.txt fix a typo
  Documentation/early-userspace/README fix a typo
  Documentation/video4linux/soc-camera.txt fix a typo
  lguest: fix CONFIG_PAE -> CONFIG_x86_PAE in comment
  ...

pinctrl: rip out the direct pinconf API

2013-06-25T10:54:56+00:00

From the inception ot the pin config API there has been the
possibility to get a handle at a pin directly and configure
its electrical characteristics. For this reason we had:

int pin_config_get(const char *dev_name, const char *name,
               unsigned long *config);
int pin_config_set(const char *dev_name, const char *name,
               unsigned long config);
int pin_config_group_get(const char *dev_name,
               const char *pin_group,
               unsigned long *config);
int pin_config_group_set(const char *dev_name,
               const char *pin_group,
               unsigned long config);

After the introduction of the pin control states that will
control pins associated with devices, and its subsequent
introduction to the device core, as well as the
introduction of pin control hogs that can set up states on
boot and optionally also at sleep, this direct pin control
API is a thing of the past.

As could be expected, it has zero in-kernel users.
Let's delete this API and make our world simpler.

Reported-by: Tony Lindgren 
Reviewed-by: Stephen Warren 
Acked-by: Tony Lindgren 
Signed-off-by: Linus Walleij

pinctrl: update GPIO range doc

2013-06-17T16:18:29+00:00

This updates the GPIO range documentation with the API changes
for sparse/random/arbitrary pin-to-GPIO mappings.

Reviewed-by: Christian Ruppert 
Acked-by: Rob Landley 
Signed-off-by: Linus Walleij

Documentation/pinctrl.txt: fix typo "with with"

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

Fix typo in "communicate directly with with the pinctrl subsystem".

Signed-off-by: James Hogan 
Cc: Linus Walleij 
Acked-by: Rob Landley 
Signed-off-by: Linus Walleij

doc: fix misspellings with 'codespell' tool

2013-05-28T10:02:12+00:00

Signed-off-by: Anatol Pomozov 
Signed-off-by: Jiri Kosina

pinctrl: document the "GPIO mode" pitfall

2013-03-18T10:03:29+00:00

Recently as adoption of the pinctrl framework is reaching
niches where the pins are reconfigured during system sleep
and datasheets often talk about something called "GPIO mode",
some engineers become confused by this, thinking that since
it is named "GPIO (something something)" it must be modeled
in the kernel using .

To clarify things, let's put in this piece of documentation,
or just start off the discussion here.

Cc: Laurent Pinchart 
Cc: Pankaj Dev 
Reviewed-by: Stephen Warren 
Signed-off-by: Linus Walleij