linux-toradex.git/include/linux/pinctrl/pinconf-generic.h, branch v4.4.93 Linux kernel for Apalis and Colibri modules pinctrl: pinconf-generic: sort pin configuration params alphabetically 2015-10-02T22:07:27+00:00 Masahiro Yamada yamada.masahiro@socionext.com 2015-09-30T12:07:17+00:00 3c4b23dd71ea6f68be9731b68877fbc05f4fb693 Currently, the dt_params array in drivers/pinctrl/pinconf-generic.c is not sorted in the same order as the enum pin_config_param in include/linux/pinctrl/pinconf-generic.h. Sort enum pin_config_param, conf_items, dt_params, alphabetically for consistency. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> 
Currently, the dt_params array in drivers/pinctrl/pinconf-generic.c
is not sorted in the same order as the enum pin_config_param in
include/linux/pinctrl/pinconf-generic.h.

Sort enum pin_config_param, conf_items, dt_params, alphabetically
for consistency.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
pinctrl: pinconf-generic: loose DT dependence 2015-01-14T13:21:38+00:00 Linus Walleij linus.walleij@linaro.org 2015-01-11T23:45:55+00:00 f684e4ac9f4bae4e6ecff92eef9645a44764fc04 New pin controllers such as ACPI-based may also have custom properties to parse, and should be able to use generic pin config. Let's make the code compile on !OF systems and rename members a bit to underscore it is custom parameters and not necessarily DT parameters. This fixes a build regression for x86_64 on the zeroday kernel builds. Reported-by: kbuild test robot <fengguang.wu@intel.com> Reviewed-and-tested-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> 
New pin controllers such as ACPI-based may also have custom properties
to parse, and should be able to use generic pin config. Let's make the
code compile on !OF systems and rename members a bit to underscore it
is custom parameters and not necessarily DT parameters.

This fixes a build regression for x86_64 on the zeroday kernel builds.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Reviewed-and-tested-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
pinctrl: pinconf-generic: Allow driver to specify DT params 2015-01-11T21:32:19+00:00 Soren Brinkmann soren.brinkmann@xilinx.com 2015-01-09T15:43:46+00:00 dd4d01f7bad886c22687224bc7070b87de8deb51 Additionally to the generic DT parameters, allow drivers to provide driver-specific DT parameters to be used with the generic parser infrastructure. To achieve this 'struct pinctrl_desc' is extended to pass custom pinconf option to the core. In order to pass this kind of information, the related data structures - 'struct pinconf_generic_dt_params', 'pin_config_item' - are moved from pinconf internals to the pinconf-generic header. Additionally pinconfg-generic is refactored to not only iterate over the generic pinconf parameters but also take the parameters into account that are provided through the driver's 'struct pinctrl_desc'. In particular 'pinconf_generic_parse_dt_config()' and 'pinconf_generic_dump' helpers are split into two parts each. In order to have a more generic helper that can be used to process the generic parameters as well as the driver-specific ones. v2: - fix typo - add missing documentation for @conf_items member in struct - rebase to pinctrl/devel: conflict in abx500 - rename _pinconf_generic_dump() to pinconf_generic_dump_one() - removed '_' from _parse_dt_cfg() - removed BUG_ONs, error condition is handled in if statements - removed pinconf_generic_dump_group() & pinconf_generic_dump_pin helpers - fixed up corresponding call sites - renamed pinconf_generic_dump() to pinconf_generic_dump_pins() - added kernel-doc to pinconf_generic_dump_pins() - add kernel-doc - more verbose commit message Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Tested-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> 
Additionally to the generic DT parameters, allow drivers to provide
driver-specific DT parameters to be used with the generic parser
infrastructure.

To achieve this 'struct pinctrl_desc' is extended to pass custom pinconf
option to the core. In order to pass this kind of information, the
related data structures - 'struct pinconf_generic_dt_params',
'pin_config_item' - are moved from pinconf internals to the
pinconf-generic header.

Additionally pinconfg-generic is refactored to not only iterate over the
generic pinconf parameters but also take the parameters into account
that are provided through the driver's 'struct pinctrl_desc'.
In particular 'pinconf_generic_parse_dt_config()' and
'pinconf_generic_dump' helpers are split into two parts each. In order
to have a more generic helper that can be used to process the generic
parameters as well as the driver-specific ones.

v2:
 - fix typo
 - add missing documentation for @conf_items member in struct
 - rebase to pinctrl/devel: conflict in abx500
 - rename _pinconf_generic_dump() to pinconf_generic_dump_one()
 - removed '_' from _parse_dt_cfg()
 - removed BUG_ONs, error condition is handled in if statements
 - removed pinconf_generic_dump_group() & pinconf_generic_dump_pin
   helpers
   - fixed up corresponding call sites
   - renamed pinconf_generic_dump() to pinconf_generic_dump_pins()
   - added kernel-doc to pinconf_generic_dump_pins()
 - add kernel-doc
 - more verbose commit message

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Tested-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
pinctrl: pinconf-generic: Infer map type from DT property 2015-01-11T21:30:04+00:00 Soren Brinkmann soren.brinkmann@xilinx.com 2015-01-09T15:43:45+00:00 31c89c959667194350f496947b576c149503ce98 With the new 'groups' property, the DT parser can infer the map type from the fact whether 'pins' or 'groups' is used to specify the pin group to work on. To maintain backwards compatibitliy with current usage of the DT binding, this is only done when PIN_MAP_TYPE_INVALID is passed to the parsing function as type. Also, a new helper 'pinconf_generic_dt_node_to_map_all()' is introduced, which can be used by drivers as generic callback for dt_node_to_map() to leverage the new feature. Changes since v2: - rename dt_pin_specifier to subnode_target_type - add additional comment in header file explaining passing an invalid map type - mention map_all() helper in commit message Changes since RFC v2: - none Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Tested-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> 
With the new 'groups' property, the DT parser can infer the map type
from the fact whether 'pins' or 'groups' is used to specify the pin
group to work on.

To maintain backwards compatibitliy with current usage of the DT
binding, this is only done when PIN_MAP_TYPE_INVALID is passed to the
parsing function as type.

Also, a new helper 'pinconf_generic_dt_node_to_map_all()' is introduced,
which can be used by drivers as generic callback for dt_node_to_map() to
leverage the new feature.

Changes since v2:
 - rename dt_pin_specifier to subnode_target_type
 - add additional comment in header file explaining passing an invalid
   map type
 - mention map_all() helper in commit message
Changes since RFC v2:
 - none

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Tested-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
pinctrl: generic: Fix PIN_CONFIG_DRIVE_OPEN_SOURCE source/drain doc mismatch 2014-09-04T17:21:45+00:00 Geert Uytterhoeven geert+renesas@glider.be 2014-09-03T18:01:55+00:00 0d37899363b0e5486f8800231b7edd75e8b60942 PIN_CONFIG_DRIVE_OPEN_SOURCE enables open source, not open drain. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> 
PIN_CONFIG_DRIVE_OPEN_SOURCE enables open source, not open drain.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
pinctrl: Adds slew-rate, input-enable/disable 2013-12-16T09:55:03+00:00 Sherman Yin syin@broadcom.com 2013-12-11T18:37:17+00:00 8ba3f4d00078e7a49c60c0bd6298f29402c3a0a0 This commit adds slew-rate and input-enable/disable support for pinconf -generic. Signed-off-by: Sherman Yin <syin@broadcom.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> 
This commit adds slew-rate and input-enable/disable support for pinconf
-generic.

Signed-off-by: Sherman Yin <syin@broadcom.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
pinctrl: provide documentation pointer 2013-12-03T09:08:46+00:00 Linus Walleij linus.walleij@linaro.org 2013-11-25T14:43:37+00:00 e9c9489f1077880cb8332f3e1600bf8edba3e86a The PIN_CONFIG_OUTPUT parameter is really tricky to understand and needs an explicit pointer to the documentation. Cc: Tomasz Figa <t.figa@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> 
The PIN_CONFIG_OUTPUT parameter is really tricky to understand
and needs an explicit pointer to the documentation.

Cc: Tomasz Figa <t.figa@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
pinctrl: utils : add support to pass config type in generic util APIs 2013-08-23T06:56:32+00:00 Laxman Dewangan ldewangan@nvidia.com 2013-08-21T11:23:37+00:00 3287c24088abded9f111ca797fdd36f86912d199 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 <ldewangan@nvidia.com> Reviewed-by: Stephen Warren <swarren@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> 
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 <ldewangan@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
pinctrl: add includes and ifdefs for non-DT builds 2013-08-15T20:12:46+00:00 Linus Walleij linus.walleij@linaro.org 2013-08-15T19:38:49+00:00 0d74d4a161c9f9870039af414b712552c0ed6dfb 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 <linux/device.h> to get the most important structs and forward-declare the pinctrl core structs. Reported-by: Olof Johansson <olof@lixom.net> Cc: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> 
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 <linux/device.h> to get the
most important structs and forward-declare the pinctrl
core structs.

Reported-by: Olof Johansson <olof@lixom.net>
Cc: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
pinctrl: pinconf-generic: add generic APIs for mapping pinctrl node 2013-08-14T19:00:41+00:00 Laxman Dewangan ldewangan@nvidia.com 2013-08-06T13:12:34+00:00 e81c8f18afc4fdd6e34d8c83814b8b5134dbb30f 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 <ldewangan@nvidia.com> Reviewed-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> 
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 <ldewangan@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>