diff options
| author | Dinh Nguyen <dinguyen@kernel.org> | 2022-01-04 07:59:22 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-01-27 11:03:54 +0100 |
| commit | 85a75d45f7155ce3b4ea99f2fc5f2acd952bf921 (patch) | |
| tree | f8b73dbb599fc1f376a8e41a6b89bed45d22295f | |
| parent | 5157828d3975768b53a51cdf569203b953184022 (diff) | |
usb: dwc2: do not gate off the hardware if it does not support clock gating
[ Upstream commit 34146c68083f1aef6709196b3dc888c1ceffd357 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.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 a215ec9e172e..657dbd50faf1 100644 --- a/drivers/usb/dwc2/hcd.c +++ b/drivers/usb/dwc2/hcd.c @@ -4403,11 +4403,12 @@ 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; |