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pinctrl: pinconf-generic: Add properties 'input-threshold-voltage-microvolt'

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Add a new generic pin configuration parameter PIN_CONFIG_INPUT_VOLTAGE_UV.
This parameter is used to specify the input voltage level of a pin in
microvolts, which corresponds to the 'input-voltage-microvolt' property
in Device Tree.

Reviewed-by: Linus Walleij <linusw@kernel.org>
Signed-off-by: Tzuyi Chang <tychang@realtek.com>
Co-developed-by: Yu-Chun Lin <eleanor.lin@realtek.com>
Signed-off-by: Yu-Chun Lin <eleanor.lin@realtek.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
This commit is contained in:
Tzuyi Chang
2026-03-17 19:54:05 +08:00
committed by Linus Walleij
parent 7b9fe771dc
commit 00a5d1e71c
2 changed files with 5 additions and 0 deletions
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2
drivers/pinctrl/pinconf-generic.c
View File

@@ -57,6 +57,7 @@ static const struct pin_config_item conf_items[] = {
PCONFDUMP(PIN_CONFIG_SKEW_DELAY, "skew delay", NULL, true),
PCONFDUMP(PIN_CONFIG_SKEW_DELAY_INPUT_PS, "input skew delay", "ps", true),
PCONFDUMP(PIN_CONFIG_SKEW_DELAY_OUTPUT_PS, "output skew delay", "ps", true),
PCONFDUMP(PIN_CONFIG_INPUT_VOLTAGE_UV, "input voltage in microvolt", "uV", true),
};
static void pinconf_generic_dump_one(struct pinctrl_dev *pctldev,
@@ -203,6 +204,7 @@ static const struct pinconf_generic_params dt_params[] = {
{ "skew-delay", PIN_CONFIG_SKEW_DELAY, 0 },
{ "skew-delay-input-ps", PIN_CONFIG_SKEW_DELAY_INPUT_PS, 0 },
{ "skew-delay-output-ps", PIN_CONFIG_SKEW_DELAY_OUTPUT_PS, 0 },
{ "input-threshold-voltage-microvolt", PIN_CONFIG_INPUT_VOLTAGE_UV, 0 },
};
/**

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

@@ -83,6 +83,8 @@ struct pinctrl_map;
* 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_INPUT_VOLTAGE_UV: this will configure the input voltage level of
* the pin. The argument is specified in microvolts.
* @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
@@ -145,6 +147,7 @@ enum pin_config_param {
PIN_CONFIG_INPUT_SCHMITT,
PIN_CONFIG_INPUT_SCHMITT_ENABLE,
PIN_CONFIG_INPUT_SCHMITT_UV,
PIN_CONFIG_INPUT_VOLTAGE_UV,
PIN_CONFIG_MODE_LOW_POWER,
PIN_CONFIG_MODE_PWM,
PIN_CONFIG_LEVEL,