diff options
| author | Felipe Balbi <felipe.balbi@linux.intel.com> | 2017-06-05 16:22:10 +0200 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2017-06-13 12:21:06 +0200 |
| commit | 958d1a4c40ddc24e02683074d04ad5cb30380705 (patch) | |
| tree | 7cef2edd8b89759712fa05036c0c4338271a31b0 /drivers/usb/dwc3 | |
| parent | usb: dwc3: core: initialize ULPI before trying to get the PHY (diff) | |
| download | linux-958d1a4c40ddc24e02683074d04ad5cb30380705.tar.xz linux-958d1a4c40ddc24e02683074d04ad5cb30380705.zip | |
usb: dwc3: core: program PHY for proper DRD modes
If PHY is entering Host mode, we need to enable VBUS.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/dwc3')
| -rw-r--r-- | drivers/usb/dwc3/core.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 25165a97db5e..326b302fc440 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -151,11 +151,24 @@ static void __dwc3_set_mode(struct work_struct *work) switch (dwc->desired_dr_role) { case DWC3_GCTL_PRTCAP_HOST: ret = dwc3_host_init(dwc); - if (ret) + if (ret) { dev_err(dwc->dev, "failed to initialize host\n"); + } else { + if (dwc->usb2_phy) + otg_set_vbus(dwc->usb2_phy->otg, true); + if (dwc->usb2_generic_phy) + phy_set_mode(dwc->usb2_generic_phy, PHY_MODE_USB_HOST); + + } break; case DWC3_GCTL_PRTCAP_DEVICE: dwc3_event_buffers_setup(dwc); + + if (dwc->usb2_phy) + otg_set_vbus(dwc->usb2_phy->otg, false); + if (dwc->usb2_generic_phy) + phy_set_mode(dwc->usb2_generic_phy, PHY_MODE_USB_DEVICE); + ret = dwc3_gadget_init(dwc); if (ret) dev_err(dwc->dev, "failed to initialize peripheral\n"); @@ -915,6 +928,12 @@ static int dwc3_core_init_mode(struct dwc3 *dwc) switch (dwc->dr_mode) { case USB_DR_MODE_PERIPHERAL: dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_DEVICE); + + if (dwc->usb2_phy) + otg_set_vbus(dwc->usb2_phy->otg, false); + if (dwc->usb2_generic_phy) + phy_set_mode(dwc->usb2_generic_phy, PHY_MODE_USB_DEVICE); + ret = dwc3_gadget_init(dwc); if (ret) { if (ret != -EPROBE_DEFER) @@ -924,6 +943,12 @@ static int dwc3_core_init_mode(struct dwc3 *dwc) break; case USB_DR_MODE_HOST: dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_HOST); + + if (dwc->usb2_phy) + otg_set_vbus(dwc->usb2_phy->otg, true); + if (dwc->usb2_generic_phy) + phy_set_mode(dwc->usb2_generic_phy, PHY_MODE_USB_HOST); + ret = dwc3_host_init(dwc); if (ret) { if (ret != -EPROBE_DEFER) |