6.4-stable review patch. If anyone has any objections, please let me know.
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From: Luke Lu luke.lu@libre.computer
commit 1fa206bb764f37d2ab4bf671e483153ef0659b34 upstream.
Device connected to usb otg port of GXL-based boards can not be recognised after resumption, doesn't recover even if disconnect and reconnect the device. dmesg shows it disconnects during resumption.
[ 41.492911] usb 1-2: USB disconnect, device number 3 [ 41.499346] usb 1-2: unregistering device [ 41.511939] usb 1-2: unregistering interface 1-2:1.0
Calling usb_post_init() will fix this issue, and it's tested and verified on libretech's aml-s905x-cc board.
Cc: stable@vger.kernel.org # v5.8+ Fixes: c99993376f72 ("usb: dwc3: Add Amlogic G12A DWC3 glue") Signed-off-by: Luke Lu luke.lu@libre.computer Acked-by: Neil Armstrong neil.armstrong@linaro.org Link: https://lore.kernel.org/r/20230809212911.18903-1-luke.lu@libre.computer Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/usb/dwc3/dwc3-meson-g12a.c | 6 ++++++ 1 file changed, 6 insertions(+)
--- a/drivers/usb/dwc3/dwc3-meson-g12a.c +++ b/drivers/usb/dwc3/dwc3-meson-g12a.c @@ -938,6 +938,12 @@ static int __maybe_unused dwc3_meson_g12 return ret; }
+ if (priv->drvdata->usb_post_init) { + ret = priv->drvdata->usb_post_init(priv); + if (ret) + return ret; + } + return 0; }