This patch updates the ID pin state of USB when cable state is changed by using the extcon_set_cable_line_state() function. The extcon consumer driver can receive the changed ID pin state through registered notifier chain of extcon consumer driver.
Cc: Roger Quadros <[email protected]> Cc: Robert Baldyga <[email protected]> Cc: MyungJoo Ham <[email protected]> Signed-off-by: Chanwoo Choi <[email protected]> --- drivers/extcon/extcon-usb-gpio.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/extcon/extcon-usb-gpio.c b/drivers/extcon/extcon-usb-gpio.c index 14da94c..9ff3171 100644 --- a/drivers/extcon/extcon-usb-gpio.c +++ b/drivers/extcon/extcon-usb-gpio.c @@ -62,12 +62,18 @@ static void usb_extcon_detect_cable(struct work_struct *work) */ extcon_set_cable_state_(info->edev, EXTCON_USB_HOST, false); extcon_set_cable_state_(info->edev, EXTCON_USB, true); + + extcon_set_cable_line_state(info->edev, EXTCON_USB, + EXTCON_USB_ID_HIGH); } else { /* * ID = 0 means USB HOST cable attached. * As we don't have event for USB peripheral cable detached, * we simulate USB peripheral detach here. */ + extcon_set_cable_line_state(info->edev, EXTCON_USB, + EXTCON_USB_ID_LOW); + extcon_set_cable_state_(info->edev, EXTCON_USB, false); extcon_set_cable_state_(info->edev, EXTCON_USB_HOST, true); } -- 2.2.0.GIT -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
