diff options
Diffstat (limited to 'drivers/usb/dwc3/ulpi.c')
| -rw-r--r-- | drivers/usb/dwc3/ulpi.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/ulpi.c b/drivers/usb/dwc3/ulpi.c index bd86f84f3790..e87ce8e9edee 100644 --- a/drivers/usb/dwc3/ulpi.c +++ b/drivers/usb/dwc3/ulpi.c @@ -41,6 +41,12 @@ static int dwc3_ulpi_read(struct device *dev, u8 addr) u32 reg; int ret; + reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0)); + if (reg & DWC3_GUSB2PHYCFG_SUSPHY) { + reg &= ~DWC3_GUSB2PHYCFG_SUSPHY; + dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg); + } + reg = DWC3_GUSB2PHYACC_NEWREGREQ | DWC3_ULPI_ADDR(addr); dwc3_writel(dwc->regs, DWC3_GUSB2PHYACC(0), reg); @@ -58,6 +64,12 @@ static int dwc3_ulpi_write(struct device *dev, u8 addr, u8 val) struct dwc3 *dwc = dev_get_drvdata(dev); u32 reg; + reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0)); + if (reg & DWC3_GUSB2PHYCFG_SUSPHY) { + reg &= ~DWC3_GUSB2PHYCFG_SUSPHY; + dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg); + } + reg = DWC3_GUSB2PHYACC_NEWREGREQ | DWC3_ULPI_ADDR(addr); reg |= DWC3_GUSB2PHYACC_WRITE | val; dwc3_writel(dwc->regs, DWC3_GUSB2PHYACC(0), reg); |