diff options
| author | Prashanth K <quic_prashk@quicinc.com> | 2023-05-31 17:41:14 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-06-13 12:57:49 +0300 |
| commit | edd60d24bd858cef165274e4cd6cab43bdc58d15 (patch) | |
| tree | 46a0f5aa682682ffdb4eea824fad0b6c7e6c0b60 /drivers/usb/cdns3 | |
| parent | 9a070e8e208995a9d638b538ed7abf28bd6ea6f0 (diff) | |
| download | linux-edd60d24bd858cef165274e4cd6cab43bdc58d15.tar.xz | |
usb: common: usb-conn-gpio: Set last role to unknown before initial detection
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 <quic_prashk@quicinc.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Message-ID: <1685544074-17337-1-git-send-email-quic_prashk@quicinc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/cdns3')
| -rw-r--r-- | drivers/usb/cdns3/core.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/cdns3/core.c b/drivers/usb/cdns3/core.c index dbcdf3b24b47..69d2921f2d3b 100644 --- a/drivers/usb/cdns3/core.c +++ b/drivers/usb/cdns3/core.c @@ -252,6 +252,8 @@ static enum usb_role cdns_hw_role_state_machine(struct cdns *cdns) if (!vbus) role = USB_ROLE_NONE; break; + default: + break; } dev_dbg(cdns->dev, "role %d -> %d\n", cdns->role, role); |