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Date: Thu, 02 Apr 2015 15:13:04 +0200 From: Robert Baldyga <r.baldyga@...sung.com> To: cw00.choi@...sung.com Cc: myungjoo.ham@...sung.com, rogerq@...com, linux-usb@...r.kernel.org, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, m.szyprowski@...sung.com, Robert Baldyga <r.baldyga@...sung.com> Subject: [PATCH v3 3/4] extcon: usb-gpio: make debounce value configurable in devicetree 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@...sung.com> Acked-by: Roger Quadros <rogerq@...com> --- 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 baf7add..fe223bf 100644 --- a/drivers/extcon/extcon-usb-gpio.c +++ b/drivers/extcon/extcon-usb-gpio.c @@ -116,6 +116,7 @@ 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) @@ -126,6 +127,11 @@ 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"); @@ -147,16 +153,14 @@ 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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