kernel/linux.git/include/linux/pinctrl/pinconf.h, branch v5.0.3

pinctrl: Document pin_config_group_get() return codes like pin_config_get()

2018-07-09T11:09:21+00:00

The pinconf_generic_dump_one() function makes the assumption that pin_config_group_get() should return -EINVAL and -ENOTSUPP just like pin_config_get() does. Document that so it's more obvious. Signed-off-by: Douglas Anderson Signed-off-by: Linus Walleij

pinctrl: Pass all configs to driver on pin_config_set()

2013-08-28T11:34:41+00:00

When setting pin configuration in the pinctrl framework, pin_config_set() or pin_config_group_set() is called in a loop to set one configuration at a time for the specified pin or group. This patch 1) removes the loop and 2) changes the API to pass the whole pin config array to the driver. It is now up to the driver to loop through the configs. This allows the driver to potentially combine configs and reduce the number of writes to pin config registers. All c files changed have been build-tested to verify the change compiles and that the corresponding .o is successfully generated. Signed-off-by: Sherman Yin Reviewed-by: Christian Daudt Reviewed-by: Matt Porter Tested-by: Stephen Warren Acked-by: Laurent Pinchart Signed-off-by: Linus Walleij

pinctrl: fix pinconf_ops::pin_config_dbg_parse_modify kerneldoc

2013-06-18T15:23:36+00:00

The kerneldoc comment for struct pinconf_ops was missing pin_config_dbg_parse_modify, and instead described pin_config_group_dbg_set (which is presumably an old name for the same function). Rename it in the kerneldoc comment so they match. Signed-off-by: James Hogan Signed-off-by: Linus Walleij

pinctrl/pinconfig: add debug interface

2013-04-19T13:45:05+00:00

This update adds a debugfs interface to modify a pin configuration for a given state in the pinctrl map. This allows to modify the configuration for a non-active state, typically sleep state. This configuration is not applied right away, but only when the state will be entered. This solution is mandated for us by HW validation: in order to test and verify several pin configurations during sleep without recompiling the software. Change log in this patch set; Take into account latest feedback from Stephen Warren: - stale comments update - improved code efficiency and readibility - limit size of global variable pinconf_dbg_conf - remove req_type as it can easily be added later when add/delete requests support is implemented Signed-off-by: Laurent Meunier Signed-off-by: Linus Walleij

pinctrl: (cosmetic) fix two entries in DocBook comments

2012-05-10T11:22:01+00:00

This removes a repeated word and a repeated and incomplete line from two pinctrl headers. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Linus Walleij

pinctrl: allow pctldevs to decode pin config in debugfs

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

Add a pinconf op so that pin controller drivers can decode their pin config settings for debugfs. Signed-off-by: Stephen Warren Signed-off-by: Linus Walleij

pinctrl: introduce generic pin config

2012-03-12T21:49:02+00:00

This is a split-off from the earlier patch set which adds generic pin configuration for the pin controllers that want it. Since we may have a system with mixed generic and custom pin controllers, we pass a boolean in the pin controller ops vtable to indicate if it is generic. ChangeLog v1->v5: - Follow parent patch versioning number system. - Document the semantic meaning of return values from pin config get functions, so we can iterate over pins and check their properties from debugfs as part of the generic config code. - Use proper cast functions in the generic debugfs pin config file. - Expand generic config to optionally cover groups too. ChangeLog v5->v6: - Update to match underlying changes. ChangeLog v6->v7: - Drop DRIVE_OFF parameter, use bias high impedance for this - Delete argument for drive modes push-pull, od and os. These are now just state transitions. - Delete slew rate rising/falling due to discussions on on proper semantics - Drop config wakeup, struct irq_chip does this for now, add back if need be. - Set PIN_CONFIG_END to 0x7fff making room for custom config parameters from 0x8000 and up. - Prefix accessor functions with pinconf_

pinctrl: break out a pinctrl consumer header

2012-02-10T20:32:57+00:00

This breaks out a header to be used by all pinmux and pinconfig alike, so drivers needing services from pinctrl does not need to include different headers. This is similar to the approach taken by the regulator API. Acked-by: Stephen Warren Signed-off-by: Linus Walleij

pinctrl: pass name instead of device to pin_config_*

2012-01-03T08:10:07+00:00

Obtaining a "struct pinctrl_dev *" is difficult for code not directly related to the pinctrl subsystem. However, the device name of the pinctrl device is fairly well known. So, modify pin_config_*() to take the device name instead of the "struct pinctrl_dev *". Signed-off-by: Stephen Warren [rebased on top of refactoring code] Signed-off-by: Linus Walleij

pinctrl: add "struct seq_file;" to pinconf.h

2012-01-03T08:10:07+00:00

This allows one to include pinconf.h without having to include other headers first. Signed-off-by: Stephen Warren Signed-off-by: Linus Walleij