usb: dwc3: qcom: Don't leave BCR asserted

commit ef8abc0 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 <[email protected]>
Fixes: a4333c3 ("usb: dwc3: Add Qualcomm DWC3 glue driver")
Acked-by: Thinh Nguyen <[email protected]>
Reviewed-by: Konrad Dybcio <[email protected]>
Signed-off-by: Krishna Kurapati <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
[ adapted to individual clock management instead of bulk clock operations ]
Signed-off-by: Sasha Levin <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

Author: Kriskura176767

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 @@ static int dwc3_qcom_probe(struct platform_device *pdev)
 		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);
 }