diff options
| author | Dinh Nguyen <dinguyen@kernel.org> | 2022-01-04 14:59:22 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-01-06 15:27:53 +0100 |
| commit | 34146c68083f1aef6709196b3dc888c1ceffd357 (patch) | |
| tree | d861bf9afd653f4ed8213ce4a220d014a1581eb2 | |
| parent | usb: dwc3: qcom: Fix NULL vs IS_ERR checking in dwc3_qcom_probe (diff) | |
| download | linux-34146c68083f1aef6709196b3dc888c1ceffd357.tar.xz linux-34146c68083f1aef6709196b3dc888c1ceffd357.zip | |
usb: dwc2: do not gate off the hardware if it does not support clock gating
We should not be clearing the HCD_FLAG_HW_ACCESSIBLE bit if the hardware
does not support clock gating.
Fixes: 50fb0c128b6e ("usb: dwc2: Add clock gating entering flow by system suspend")
Acked-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Link: https://lore.kernel.org/r/20220104135922.734776-1-dinguyen@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/dwc2/hcd.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c index 13c779a28e94..f63a27d11fac 100644 --- a/drivers/usb/dwc2/hcd.c +++ b/drivers/usb/dwc2/hcd.c @@ -4399,11 +4399,12 @@ static int _dwc2_hcd_suspend(struct usb_hcd *hcd) * If not hibernation nor partial power down are supported, * clock gating is used to save power. */ - if (!hsotg->params.no_clock_gating) + if (!hsotg->params.no_clock_gating) { dwc2_host_enter_clock_gating(hsotg); - /* After entering suspend, hardware is not accessible */ - clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); + /* After entering suspend, hardware is not accessible */ + clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); + } break; default: goto skip_power_saving; |