diff options
| author | Gary Bisson <gary.bisson@boundarydevices.com> | 2021-01-25 17:19:34 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-02-05 10:21:40 +0100 |
| commit | 0e5a3c8284a30f4c43fd81d7285528ece74563b5 (patch) | |
| tree | 53c3dea7e543852c7503625d83bb703a3622efa7 /drivers | |
| parent | d4a610635400ccc382792f6be69427078541c678 (diff) | |
| download | lwn-0e5a3c8284a30f4c43fd81d7285528ece74563b5.tar.gz lwn-0e5a3c8284a30f4c43fd81d7285528ece74563b5.zip | |
usb: dwc3: fix clock issue during resume in OTG mode
Commit fe8abf332b8f ("usb: dwc3: support clocks and resets for DWC3
core") introduced clock support and a new function named
dwc3_core_init_for_resume() which enables the clock before calling
dwc3_core_init() during resume as clocks get disabled during suspend.
Unfortunately in this commit the DWC3_GCTL_PRTCAP_OTG case was forgotten
and therefore during resume, a platform could call dwc3_core_init()
without re-enabling the clocks first, preventing to resume properly.
So update the resume path to call dwc3_core_init_for_resume() as it
should.
Fixes: fe8abf332b8f ("usb: dwc3: support clocks and resets for DWC3 core")
Cc: stable@vger.kernel.org
Signed-off-by: Gary Bisson <gary.bisson@boundarydevices.com>
Link: https://lore.kernel.org/r/20210125161934.527820-1-gary.bisson@boundarydevices.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/dwc3/core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 841daec70b6e..3101f0dcf6ae 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -1758,7 +1758,7 @@ static int dwc3_resume_common(struct dwc3 *dwc, pm_message_t msg) if (PMSG_IS_AUTO(msg)) break; - ret = dwc3_core_init(dwc); + ret = dwc3_core_init_for_resume(dwc); if (ret) return ret; |