diff options
| author | Bin Liu <b-liu@ti.com> | 2019-12-11 10:10:03 -0600 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2020-05-22 21:19:27 +0100 |
| commit | 7e48379baf1ba7bb2665bbc1782b262a335535be (patch) | |
| tree | 4d255b87e3b5eef99d3e0675eed4b777e15c98b4 | |
| parent | 249c9acb2435e0d3f31c67b76679bd96d2bf76d5 (diff) | |
| download | linux-stable-7e48379baf1ba7bb2665bbc1782b262a335535be.tar.gz | |
usb: dwc3: turn off VBUS when leaving host mode
commit 09ed259fac621634d51cd986aa8d65f035662658 upstream.
VBUS should be turned off when leaving the host mode.
Set GCTL_PRTCAP to device mode in teardown to de-assert DRVVBUS pin to
turn off VBUS power.
Fixes: 5f94adfeed97 ("usb: dwc3: core: refactor mode initialization to its own function")
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
| -rw-r--r-- | drivers/usb/dwc3/core.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 52b30c5b000e3..b489be926ebd9 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -614,6 +614,9 @@ static void dwc3_core_exit_mode(struct dwc3 *dwc) /* do nothing */ break; } + + /* de-assert DRVVBUS for HOST and OTG mode */ + dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_DEVICE); } #define DWC3_ALIGN_MASK (16 - 1) |