summaryrefslogtreecommitdiff
path: root/drivers/usb/dwc3/core.c
diff options
context:
space:
mode:
authorChris Zankel <chris@zankel.net>2015-08-29 23:55:58 (GMT)
committerChris Zankel <chris@zankel.net>2015-08-29 23:55:58 (GMT)
commit650c919798c71fb34b77a6f2ba03a06907f06a76 (patch)
treed1c60012d4d86846d25f1d0b783b5122c26a2e31 /drivers/usb/dwc3/core.c
parent895fb3159280fe7695b35ec7c87ec19e13ca5b6e (diff)
parent64291f7db5bd8150a74ad2036f1037e6a0428df2 (diff)
downloadlinux-650c919798c71fb34b77a6f2ba03a06907f06a76.tar.xz
Merge tag 'v4.2' into for_next
Linux 4.2
Diffstat (limited to 'drivers/usb/dwc3/core.c')
-rw-r--r--drivers/usb/dwc3/core.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 5c110d8..ff5773c 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -446,10 +446,12 @@ static int dwc3_phy_setup(struct dwc3 *dwc)
/* Select the HS PHY interface */
switch (DWC3_GHWPARAMS3_HSPHY_IFC(dwc->hwparams.hwparams3)) {
case DWC3_GHWPARAMS3_HSPHY_IFC_UTMI_ULPI:
- if (!strncmp(dwc->hsphy_interface, "utmi", 4)) {
+ if (dwc->hsphy_interface &&
+ !strncmp(dwc->hsphy_interface, "utmi", 4)) {
reg &= ~DWC3_GUSB2PHYCFG_ULPI_UTMI;
break;
- } else if (!strncmp(dwc->hsphy_interface, "ulpi", 4)) {
+ } else if (dwc->hsphy_interface &&
+ !strncmp(dwc->hsphy_interface, "ulpi", 4)) {
reg |= DWC3_GUSB2PHYCFG_ULPI_UTMI;
dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg);
} else {