From: Robert Baldyga <r.baldyga@xxxxxxxxxxx>
This patch adds devicetree property for setting debounce value. It allows
to set debounce time shorter or longer depending on the needs of given
platform.
Signed-off-by: Robert Baldyga <r.baldyga@xxxxxxxxxxx>
Acked-by: Roger Quadros <rogerq@xxxxxx>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx>
---
drivers/extcon/extcon-usb-gpio.c | 14 +++++++++-----
1 file changed, 9 insertions(+), 5 deletions(-)
diff --git a/drivers/extcon/extcon-usb-gpio.c b/drivers/extcon/extcon-usb-gpio.c
index 85b8a0ce5731..e1d5929bca81 100644
--- a/drivers/extcon/extcon-usb-gpio.c
+++ b/drivers/extcon/extcon-usb-gpio.c
@@ -103,6 +103,7 @@ static int usb_extcon_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct device_node *np = dev->of_node;
struct usb_extcon_info *info;
+ u32 debounce;
int ret;
if (!np && !ACPI_HANDLE(dev))
@@ -113,6 +114,11 @@ static int usb_extcon_probe(struct platform_device *pdev)
return -ENOMEM;
info->dev = dev;
+
+ ret = of_property_read_u32(np, "debounce", &debounce);
+ if (ret < 0)
+ debounce = USB_GPIO_DEBOUNCE_MS;
+
info->id_gpiod = devm_gpiod_get_optional(&pdev->dev, "id", GPIOD_IN);
info->vbus_gpiod = devm_gpiod_get_optional(&pdev->dev, "vbus",
GPIOD_IN);
@@ -134,16 +140,14 @@ 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);
+ ret = gpiod_set_debounce(info->id_gpiod, debounce * 1000);
if (!ret && info->vbus_gpiod) {
- ret = gpiod_set_debounce(info->vbus_gpiod,
- USB_GPIO_DEBOUNCE_MS * 1000);
+ ret = gpiod_set_debounce(info->vbus_gpiod, debounce * 1000);
if (ret < 0 && info->id_gpiod)
gpiod_set_debounce(info->vbus_gpiod, 0);
}
if (ret < 0)
- info->debounce_jiffies = msecs_to_jiffies(USB_GPIO_DEBOUNCE_MS);
+ info->debounce_jiffies = msecs_to_jiffies(debounce);
INIT_DELAYED_WORK(&info->wq_detcable, usb_extcon_detect_cable);
--
1.9.1
--
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