diff mbox series

[v7,02/21] pinctrl: pinconf-generic: Add property 'input-debounce-ns'

Message ID 20260831113514.66382-3-changhuang.liang@starfivetech.com
State New
Headers show
Series Add basic pinctrl drivers for JHB100 SoC | expand

Commit Message

Changhuang Liang Aug. 31, 2026, 11:34 a.m. UTC 
Add 'input-debounce-ns' to the generic parameters used for parsing DT
files, along with the corresponding configuration parameter
PIN_CONFIG_INPUT_DEBOUNCE_NS. This allows debounce time to be specified
in nanoseconds as an alternative to the existing 'input-debounce'
property which uses microseconds

Signed-off-by: Changhuang Liang <changhuang.liang@starfivetech.com>
---
 drivers/pinctrl/pinconf-generic.c       | 2 ++
 include/linux/pinctrl/pinconf-generic.h | 5 +++++
 2 files changed, 7 insertions(+)
diff mbox series

Patch

diff --git a/drivers/pinctrl/pinconf-generic.c b/drivers/pinctrl/pinconf-generic.c
index 95c803c40a7d..36845517984e 100644
--- a/drivers/pinctrl/pinconf-generic.c
+++ b/drivers/pinctrl/pinconf-generic.c
@@ -43,6 +43,7 @@  static const struct pin_config_item conf_items[] = {
 	PCONFDUMP(PIN_CONFIG_DRIVE_STRENGTH, "output drive strength", "mA", true),
 	PCONFDUMP(PIN_CONFIG_DRIVE_STRENGTH_UA, "output drive strength", "uA", true),
 	PCONFDUMP(PIN_CONFIG_INPUT_DEBOUNCE, "input debounce", "usec", true),
+	PCONFDUMP(PIN_CONFIG_INPUT_DEBOUNCE_NS, "input debounce", "nsec", 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),
@@ -185,6 +186,7 @@  static const struct pinconf_generic_params dt_params[] = {
 	{ "drive-strength", PIN_CONFIG_DRIVE_STRENGTH, 0 },
 	{ "drive-strength-microamp", PIN_CONFIG_DRIVE_STRENGTH_UA, 0 },
 	{ "input-debounce", PIN_CONFIG_INPUT_DEBOUNCE, 0 },
+	{ "input-debounce-ns", PIN_CONFIG_INPUT_DEBOUNCE_NS, 0 },
 	{ "input-disable", PIN_CONFIG_INPUT_ENABLE, 0 },
 	{ "input-enable", PIN_CONFIG_INPUT_ENABLE, 1 },
 	{ "input-schmitt", PIN_CONFIG_INPUT_SCHMITT, 0 },
diff --git a/include/linux/pinctrl/pinconf-generic.h b/include/linux/pinctrl/pinconf-generic.h
index a5d4b2d8633a..1df63c732b99 100644
--- a/include/linux/pinctrl/pinconf-generic.h
+++ b/include/linux/pinctrl/pinconf-generic.h
@@ -71,6 +71,10 @@  struct pinctrl_map;
  *	which means it will wait for signals to settle when reading inputs. The
  *	argument gives the debounce time in usecs. Setting the
  *	argument to zero turns debouncing off.
+ * @PIN_CONFIG_INPUT_DEBOUNCE_NS: this will configure the pin to debounce mode,
+ *	which means it will wait for signals to settle when reading inputs. The
+ *	argument gives the debounce time in nsecs. Setting the
+ *	argument to zero turns debouncing off.
  * @PIN_CONFIG_INPUT_ENABLE: enable the pin's input.  Note that this does not
  *	affect the pin's ability to drive output.  1 enables input, 0 disables
  *	input.
@@ -143,6 +147,7 @@  enum pin_config_param {
 	PIN_CONFIG_DRIVE_STRENGTH,
 	PIN_CONFIG_DRIVE_STRENGTH_UA,
 	PIN_CONFIG_INPUT_DEBOUNCE,
+	PIN_CONFIG_INPUT_DEBOUNCE_NS,
 	PIN_CONFIG_INPUT_ENABLE,
 	PIN_CONFIG_INPUT_SCHMITT,
 	PIN_CONFIG_INPUT_SCHMITT_ENABLE,