diff options
| author | Roger Quadros <rogerq@ti.com> | 2018-02-27 12:54:37 +0200 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2018-03-13 10:47:51 +0200 |
| commit | daaecc6541d014dca073473ec8a4120c0babbeb4 (patch) | |
| tree | 98dfcd2b88211aab6ecf1b43d4192529611694f9 /drivers/usb/dwc3 | |
| parent | 4cff75c7fe3dc86f374ec37e028750a62723dc2e (diff) | |
| download | blackbird-obmc-linux-daaecc6541d014dca073473ec8a4120c0babbeb4.tar.gz blackbird-obmc-linux-daaecc6541d014dca073473ec8a4120c0babbeb4.zip | |
usb: dwc3: prevent setting PRTCAP to OTG from debugfs
We don't support PRTCAP == OTG yet, so prevent user from
setting it via debugfs.
Fixes: 41ce1456e1db ("usb: dwc3: core: make dwc3_set_mode() work properly")
Cc: <stable@vger.kernel.org> # v4.12+
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/dwc3')
| -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 f1d838a4acd6..b014c87a7319 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -119,6 +119,9 @@ static void __dwc3_set_mode(struct work_struct *work) if (dwc->dr_mode != USB_DR_MODE_OTG) return; + if (dwc->desired_dr_role == DWC3_GCTL_PRTCAP_OTG) + return; + switch (dwc->current_dr_role) { case DWC3_GCTL_PRTCAP_HOST: dwc3_host_exit(dwc); |
