diff options
| author | Mark Kettenis | 2022-04-19 21:06:33 +0200 |
|---|---|---|
| committer | Marek Vasut | 2022-05-20 09:41:33 +0200 |
| commit | 6a6468f479a7e816fb656b3e1d8af30c7de837a4 (patch) | |
| tree | 78f35a3ddb79df8e8cf38adb0197571f6e2ce246 /drivers/usb/host | |
| parent | f83bd23e2a0e9861969c9d43395299a14f25ddda (diff) | |
usb: xhci-dwc3: Support role switch default role
When the device tree indicates support for role switching through
the "usb-role-switch" property, take the "role-switch-default-mode"
property into account when deciding which role to put the
controller into.
This makes USB devices work on Apple M1 systems where the device
tree may include a "dr_mode" property that is set to "otg", but
where we need to put the controller into "host" mode to see
devices connected to the type-C ports.
Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
Diffstat (limited to 'drivers/usb/host')
| -rw-r--r-- | drivers/usb/host/xhci-dwc3.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-dwc3.c b/drivers/usb/host/xhci-dwc3.c index bec0d980811..1dbd65dfaa3 100644 --- a/drivers/usb/host/xhci-dwc3.c +++ b/drivers/usb/host/xhci-dwc3.c @@ -209,6 +209,12 @@ static int xhci_dwc3_probe(struct udevice *dev) writel(reg, &dwc3_reg->g_usb2phycfg[0]); dr_mode = usb_get_dr_mode(dev_ofnode(dev)); + if (dr_mode == USB_DR_MODE_OTG && + dev_read_bool(dev, "usb-role-switch")) { + dr_mode = usb_get_role_switch_default_mode(dev_ofnode(dev)); + if (dr_mode == USB_DR_MODE_UNKNOWN) + dr_mode = USB_DR_MODE_OTG; + } if (dr_mode == USB_DR_MODE_UNKNOWN) /* by default set dual role mode to HOST */ dr_mode = USB_DR_MODE_HOST; |