From: Krishna Kurapati Date: Wed, 9 Jul 2025 13:29:00 +0000 (+0530) Subject: usb: dwc3: qcom: Don't leave BCR asserted X-Git-Tag: v6.12.40~14 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=75747e25becae912ccb10679694f2a04358dd23c;p=thirdparty%2Fkernel%2Fstable.git usb: dwc3: qcom: Don't leave BCR asserted commit ef8abc0ba49ce717e6bc4124e88e59982671f3b5 upstream. Leaving the USB BCR asserted prevents the associated GDSC to turn on. This blocks any subsequent attempts of probing the device, e.g. after a probe deferral, with the following showing in the log: [ 1.332226] usb30_prim_gdsc status stuck at 'off' Leave the BCR deasserted when exiting the driver to avoid this issue. Cc: stable Fixes: a4333c3a6ba9 ("usb: dwc3: Add Qualcomm DWC3 glue driver") Acked-by: Thinh Nguyen Reviewed-by: Konrad Dybcio Signed-off-by: Krishna Kurapati Link: https://lore.kernel.org/r/20250709132900.3408752-1-krishna.kurapati@oss.qualcomm.com [ adapted to individual clock management instead of bulk clock operations ] Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c index c1d4b52f25b06..6c79303891d11 100644 --- a/drivers/usb/dwc3/dwc3-qcom.c +++ b/drivers/usb/dwc3/dwc3-qcom.c @@ -763,13 +763,13 @@ static int dwc3_qcom_probe(struct platform_device *pdev) ret = reset_control_deassert(qcom->resets); if (ret) { dev_err(&pdev->dev, "failed to deassert resets, err=%d\n", ret); - goto reset_assert; + return ret; } ret = dwc3_qcom_clk_init(qcom, of_clk_get_parent_count(np)); if (ret) { dev_err_probe(dev, ret, "failed to get clocks\n"); - goto reset_assert; + return ret; } qcom->qscratch_base = devm_platform_ioremap_resource(pdev, 0); @@ -835,8 +835,6 @@ clk_disable: clk_disable_unprepare(qcom->clks[i]); clk_put(qcom->clks[i]); } -reset_assert: - reset_control_assert(qcom->resets); return ret; } @@ -857,8 +855,6 @@ static void dwc3_qcom_remove(struct platform_device *pdev) qcom->num_clocks = 0; dwc3_qcom_interconnect_exit(qcom); - reset_control_assert(qcom->resets); - pm_runtime_allow(dev); pm_runtime_disable(dev); }