Add changes to capture optional dt attribute "input-debounce"
provided in extcon node and used the same value if provided otherwise
default value of 20000 usecs is used for id and vbus gpios debounce time.
Signed-off-by: Raveendra Padasalagi <raveendra.padasalagi@xxxxxxxxxxxx>
Reviewed-by: Ray Jui <ray.jui@xxxxxxxxxxxx>
Reviewed-by: Srinath Mannam <srinath.mannam@xxxxxxxxxxxx>
---
Changes in v3:
- Changed USB_GPIO_DEBOUNCE_MS to USB_GPIO_DEBOUNCE_USEC
- Changed msecs_to_jiffies() to usecs_to_jiffies()
Changes in v2:
Rename gpio_debounce_timeout_ms to debounce_usecs
drivers/extcon/extcon-usb-gpio.c | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)
diff --git a/drivers/extcon/extcon-usb-gpio.c b/drivers/extcon/extcon-usb-gpio.c
index 9c925b0..69149e2 100644
--- a/drivers/extcon/extcon-usb-gpio.c
+++ b/drivers/extcon/extcon-usb-gpio.c
@@ -28,7 +28,7 @@
#include <linux/workqueue.h>
#include <linux/pinctrl/consumer.h>
-#define USB_GPIO_DEBOUNCE_MS 20 /* ms */
+#define USB_GPIO_DEBOUNCE_USEC 20000 /* us */
struct usb_extcon_info {
struct device *dev;
@@ -41,6 +41,7 @@ struct usb_extcon_info {
unsigned long debounce_jiffies;
struct delayed_work wq_detcable;
+ unsigned int debounce_usecs;
};
static const unsigned int usb_extcon_cable[] = {
@@ -133,6 +134,11 @@ static int usb_extcon_probe(struct platform_device *pdev)
if (IS_ERR(info->vbus_gpiod))
return PTR_ERR(info->vbus_gpiod);
+ ret = of_property_read_u32(np, "input-debounce",
+ &info->debounce_usecs);
+ if (ret)
+ info->debounce_usecs = USB_GPIO_DEBOUNCE_USEC;
+
info->edev = devm_extcon_dev_allocate(dev, usb_extcon_cable);
if (IS_ERR(info->edev)) {
dev_err(dev, "failed to allocate extcon device\n");
@@ -147,13 +153,13 @@ static int usb_extcon_probe(struct platform_device *pdev)
if (info->id_gpiod)
ret = gpiod_set_debounce(info->id_gpiod,
- USB_GPIO_DEBOUNCE_MS * 1000);
+ info->debounce_usecs);
if (!ret && info->vbus_gpiod)
ret = gpiod_set_debounce(info->vbus_gpiod,
- USB_GPIO_DEBOUNCE_MS * 1000);
+ info->debounce_usecs);
if (ret < 0)
- info->debounce_jiffies = msecs_to_jiffies(USB_GPIO_DEBOUNCE_MS);
+ info->debounce_jiffies = usecs_to_jiffies(info->debounce_usecs);
INIT_DELAYED_WORK(&info->wq_detcable, usb_extcon_detect_cable);
--
1.9.1
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