From: Ye Li ye.li@nxp.com
The i.MX7ulp EVK board uses GPIO to detect ID for USB OTG0, but when using DM USB driver, it is hard coded to use OTG ID pin. Add a board override function that when extcon property is provided, the function can check the GPIO to get ID.
Signed-off-by: Ye Li ye.li@nxp.com Signed-off-by: Peng Fan peng.fan@nxp.com --- drivers/usb/host/ehci-mx6.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+)
diff --git a/drivers/usb/host/ehci-mx6.c b/drivers/usb/host/ehci-mx6.c index aa0c1c355d..555a810953 100644 --- a/drivers/usb/host/ehci-mx6.c +++ b/drivers/usb/host/ehci-mx6.c @@ -568,6 +568,25 @@ static const struct ehci_ops mx6_ehci_ops = { .init_after_reset = mx6_init_after_reset };
+/** + * board_ehci_usb_phy_mode - override usb phy mode + * @port: usb host/otg port + * + * Target board specific, override usb_phy_mode. + * When usb-otg is used as usb host port, iomux pad usb_otg_id can be + * left disconnected in this case usb_phy_mode will not be able to identify + * the phy mode that usb port is used. + * Machine file overrides board_usb_phy_mode. + * When the extcon property is set in DTB, machine must provide this function, otherwise + * it will default return HOST. + * + * Return: USB_INIT_DEVICE or USB_INIT_HOST + */ +int __weak board_ehci_usb_phy_mode(struct udevice *dev) +{ + return USB_INIT_HOST; +} + static int ehci_usb_phy_mode(struct udevice *dev) { struct usb_platdata *plat = dev_get_platdata(dev); @@ -634,6 +653,15 @@ static int ehci_usb_ofdata_to_platdata(struct udevice *dev) { struct usb_platdata *plat = dev_get_platdata(dev); enum usb_dr_mode dr_mode; + const struct fdt_property *extcon; + + extcon = fdt_get_property(gd->fdt_blob, dev_of_offset(dev), + "extcon", NULL); + if (extcon) { + plat->init_type = board_ehci_usb_phy_mode(dev); + + return 0; + }
dr_mode = usb_get_dr_mode(dev->node);