On 06/13/2017 02:10 PM, Vignesh R wrote:
From: Mugunthan V N mugunthanvnm@ti.com
Add a misc driver for DWC3 wrapper, so that based on dr_mode the USB devices can bind to USB host or USB device drivers.
Based on dr_mode property, the device node needs to bind to either "host" driver or "peripheral" driver. This wrapper will on bind read dr_mode property and appropriately associate USB DT node with DWC3 peripheral driver or host driver.
This is similar to what exists today for MUSB and is instantiated by arch_misc_init() function for am33xx and am43xx.
Signed-off-by: Mugunthan V N mugunthanvnm@ti.com Signed-off-by: Vignesh R vigneshr@ti.com
drivers/usb/dwc3/dwc3-omap.c | 49 ++++++++++++++++++++++++++++++++++++++++++++ drivers/usb/dwc3/gadget.c | 2 +- 2 files changed, 50 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c index b4dde726c6f3..b7daf499515d 100644 --- a/drivers/usb/dwc3/dwc3-omap.c +++ b/drivers/usb/dwc3/dwc3-omap.c @@ -628,4 +628,53 @@ U_BOOT_DRIVER(dwc3_omap_peripheral) = { .priv_auto_alloc_size = sizeof(struct omap_dwc3_priv), .flags = DM_FLAG_ALLOC_PRIV_DMA, };
+static int ti_dwc3_wrapper_bind(struct udevice *parent) +{
- ofnode node;
- int ret;
- dev_for_each_subnode(node, parent) {
const char *name = ofnode_get_name(node);enum usb_dr_mode dr_mode;struct udevice *dev;if (strncmp(name, "usb@", 4))continue;dr_mode = usb_get_dr_mode(ofnode_to_offset(node));switch (dr_mode) {case USB_DR_MODE_PERIPHERAL:case USB_DR_MODE_OTG:/* Bind MUSB device */ret = device_bind_driver_to_node(parent,"dwc3-omap-peripheral",name, node, &dev);if (ret) {error("dwc3 - not able to bind usb device node\n");return ret;}break;case USB_DR_MODE_HOST:/* Bind MUSB host */break;default:break;};- }
- return 0;
+}
+static const struct udevice_id ti_dwc3_ids[] = {
- { .compatible = "ti,am437x-dwc3" },
- { }
+};
+U_BOOT_DRIVER(ti_dwc3_wrapper) = {
- .name = "ti-dwc3-wrapper",
- .id = UCLASS_MISC,
- .of_match = ti_dwc3_ids,
- .bind = ti_dwc3_wrapper_bind,
+};
#endif /* CONFIG_DM_USB */ diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index e065c5aeb38d..18bbd5318e48 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -2610,7 +2610,7 @@ int dwc3_gadget_init(struct dwc3 *dwc) if (ret) goto err4;
- ret = usb_add_gadget_udc(dwc->dev, &dwc->gadget);
- ret = usb_add_gadget_udc((struct device *)dwc->dev, &dwc->gadget);
This is probably unintended ?
if (ret) { dev_err(dwc->dev, "failed to register udc\n"); goto err4;