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pinctrl: add pinconf-generic defines for output

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This adds a definition of a generic output configuration
for a certain pin when using the generic pin configuration
library. Whereas driving pins low/high is usually a GPIO
business, you may want to set up pins into a default state
using hogs, and never touch them again. This helps out
with that scenario.

Based on a patch from Patrice Chotard.

Signed-off-by: Patrice Chotard <patrice.chotard@stericsson.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2013-01-04 17:57:40 +01:00
parent 8d99b32d7b
commit 483f33f63c
2 changed files with 4 additions and 0 deletions
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1
drivers/pinctrl/pinconf-generic.c
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@ -46,6 +46,7 @@ struct pin_config_item conf_items[] = {
PCONFDUMP(PIN_CONFIG_INPUT_DEBOUNCE, "input debounce", "time units"),
PCONFDUMP(PIN_CONFIG_POWER_SOURCE, "pin power source", "selector"),
PCONFDUMP(PIN_CONFIG_LOW_POWER_MODE, "pin low power", "mode"),
PCONFDUMP(PIN_CONFIG_OUTPUT, "pin output", "level"),
};
void pinconf_generic_dump_pin(struct pinctrl_dev *pctldev,

3
include/linux/pinctrl/pinconf-generic.h
View File

@ -62,6 +62,8 @@
* operation, if several modes of operation are supported these can be
* passed in the argument on a custom form, else just use argument 1
* to indicate low power mode, argument 0 turns low power mode off.
* @PIN_CONFIG_OUTPUT: this will configure the pin in output, use argument
* 1 to indicate high level, argument 0 to indicate low level.
* @PIN_CONFIG_END: this is the last enumerator for pin configurations, if
* you need to pass in custom configurations to the pin controller, use
* PIN_CONFIG_END+1 as the base offset.
@ -79,6 +81,7 @@ enum pin_config_param {
PIN_CONFIG_INPUT_DEBOUNCE,
PIN_CONFIG_POWER_SOURCE,
PIN_CONFIG_LOW_POWER_MODE,
PIN_CONFIG_OUTPUT,
PIN_CONFIG_END = 0x7FFF,
};