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SubjectRe: [PATCH v2 3/4] extcon: usb-gpio: make debounce value configurable in devicetree
On 01/04/15 10:23, Robert Baldyga wrote:
> 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@samsung.com>

Acked-by: Roger Quadros <rogerq@ti.com>

cheers,
-roger

> ---
> 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 c842715..439ca99 100644
> --- a/drivers/extcon/extcon-usb-gpio.c
> +++ b/drivers/extcon/extcon-usb-gpio.c
> @@ -114,6 +114,7 @@ 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)
> @@ -124,6 +125,11 @@ 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");
> info->vbus_gpiod = devm_gpiod_get_optional(&pdev->dev, "vbus");
>
> @@ -145,16 +151,14 @@ 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);
>
>



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