From 04b1c0798deb567e79c245be8d4b6d88e1b3b20e Mon Sep 17 00:00:00 2001 From: Prashanth K Date: Wed, 31 May 2023 20:11:14 +0530 Subject: usb: common: usb-conn-gpio: Set last role to unknown before initial detection [ Upstream commit edd60d24bd858cef165274e4cd6cab43bdc58d15 ] Currently if we bootup a device without cable connected, then usb-conn-gpio won't call set_role() since last_role is same as current role. This happens because during probe last_role gets initialised to zero. To avoid this, added a new constant in enum usb_role, last_role is set to USB_ROLE_UNKNOWN before performing initial detection. While at it, also handle default case for the usb_role switch in cdns3, intel-xhci-usb-role-switch & musb/jz4740 to avoid build warnings. Fixes: 4602f3bff266 ("usb: common: add USB GPIO based connection detection driver") Signed-off-by: Prashanth K Reviewed-by: AngeloGioacchino Del Regno Message-ID: <1685544074-17337-1-git-send-email-quic_prashk@quicinc.com> Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- include/linux/usb/role.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/usb/role.h b/include/linux/usb/role.h index b5deafd91f67..65e790a28913 100644 --- a/include/linux/usb/role.h +++ b/include/linux/usb/role.h @@ -11,6 +11,7 @@ enum usb_role { USB_ROLE_NONE, USB_ROLE_HOST, USB_ROLE_DEVICE, + USB_ROLE_UNKNOWN, }; typedef int (*usb_role_switch_set_t)(struct usb_role_switch *sw, -- cgit v1.2.3