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/common | |
| 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/common')
| -rw-r--r-- | drivers/usb/common/usb-conn-gpio.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/common/usb-conn-gpio.c b/drivers/usb/common/usb-conn-gpio.c index 766005d20bae..d0e8624c7dfe 100644 --- a/drivers/usb/common/usb-conn-gpio.c +++ b/drivers/usb/common/usb-conn-gpio.c @@ -257,6 +257,9 @@ static int usb_conn_probe(struct platform_device *pdev) platform_set_drvdata(pdev, info); device_set_wakeup_capable(&pdev->dev, true); + /* Set last role to unknown before performing the initial detection */ + info->last_role = USB_ROLE_UNKNOWN; + /* Perform initial detection */ usb_conn_queue_dwork(info, 0); |