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pinctrl: pinconf-generic: Add support for "input-schmitt-microvolt" property

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Add "input-schmitt-microvolt" property to generic options used for DT
parsing files. This enables drivers, which use generic pin configurations,
to get the value passed to this property.

Signed-off-by: Inochi Amaoto <inochiama@outlook.com>
Link: https://lore.kernel.org/IA1PR20MB4953806785BA04E075DC4F03BBAC2@IA1PR20MB4953.namprd20.prod.outlook.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Inochi Amaoto 2024-07-18 10:23:54 +08:00 committed by Linus Walleij
parent 737df10956
commit d21fe1e9a6
2 changed files with 5 additions and 0 deletions
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2
drivers/pinctrl/pinconf-generic.c
View File

@ -44,6 +44,7 @@ static const struct pin_config_item conf_items[] = {
PCONFDUMP(PIN_CONFIG_INPUT_DEBOUNCE, "input debounce", "usec", true),
PCONFDUMP(PIN_CONFIG_INPUT_ENABLE, "input enabled", NULL, false),
PCONFDUMP(PIN_CONFIG_INPUT_SCHMITT, "input schmitt trigger", NULL, false),
PCONFDUMP(PIN_CONFIG_INPUT_SCHMITT_UV, "input schmitt threshold", "uV", true),
PCONFDUMP(PIN_CONFIG_INPUT_SCHMITT_ENABLE, "input schmitt enabled", NULL, false),
PCONFDUMP(PIN_CONFIG_MODE_LOW_POWER, "pin low power", "mode", true),
PCONFDUMP(PIN_CONFIG_OUTPUT_ENABLE, "output enabled", NULL, false),
@ -177,6 +178,7 @@ static const struct pinconf_generic_params dt_params[] = {
{ "input-schmitt", PIN_CONFIG_INPUT_SCHMITT, 0 },
{ "input-schmitt-disable", PIN_CONFIG_INPUT_SCHMITT_ENABLE, 0 },
{ "input-schmitt-enable", PIN_CONFIG_INPUT_SCHMITT_ENABLE, 1 },
{ "input-schmitt-microvolts", PIN_CONFIG_INPUT_SCHMITT_UV, 0 },
{ "low-power-disable", PIN_CONFIG_MODE_LOW_POWER, 0 },
{ "low-power-enable", PIN_CONFIG_MODE_LOW_POWER, 1 },
{ "output-disable", PIN_CONFIG_OUTPUT_ENABLE, 0 },

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

@ -81,6 +81,8 @@ struct pinctrl_map;
* @PIN_CONFIG_INPUT_SCHMITT_ENABLE: control schmitt-trigger mode on the pin.
* If the argument != 0, schmitt-trigger mode is enabled. If it's 0,
* schmitt-trigger mode is disabled.
* @PIN_CONFIG_INPUT_SCHMITT_UV: this will configure an input pin to run in
* schmitt-trigger mode. The argument is in uV.
* @PIN_CONFIG_MODE_LOW_POWER: this will configure the pin for low power
* operation, if several modes of operation are supported these can be
* passed in the argument on a custom form, else just use argument 1
@ -132,6 +134,7 @@ enum pin_config_param {
PIN_CONFIG_INPUT_ENABLE,
PIN_CONFIG_INPUT_SCHMITT,
PIN_CONFIG_INPUT_SCHMITT_ENABLE,
PIN_CONFIG_INPUT_SCHMITT_UV,
PIN_CONFIG_MODE_LOW_POWER,
PIN_CONFIG_MODE_PWM,
PIN_CONFIG_OUTPUT,