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authorBin Liu <b-liu@ti.com>2019-12-11 10:10:03 -0600
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-01-15 10:39:22 +0100
commit09ed259fac621634d51cd986aa8d65f035662658 (patch)
tree6eee39cbe678b575e5ebfcbf5f1777ddcf5b57a0 /drivers/usb/dwc3
parent54c4c69f0baa433233a0c33b4ed26bf0659bc5a5 (diff)
usb: dwc3: turn off VBUS when leaving host mode
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") Cc: stable@vger.kernel.org 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>
Diffstat (limited to 'drivers/usb/dwc3')
-rw-r--r--drivers/usb/dwc3/core.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index f561c6c9e8a9..1d85c42b9c67 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -1246,6 +1246,9 @@ static void dwc3_core_exit_mode(struct dwc3 *dwc)
/* do nothing */
break;
}
+
+ /* de-assert DRVVBUS for HOST and OTG mode */
+ dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_DEVICE);
}
static void dwc3_get_properties(struct dwc3 *dwc)