From: Mugunthan V N <mugunthan...@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 <mugunthan...@ti.com>
Signed-off-by: Vignesh R <vigne...@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);
if (ret) {
dev_err(dwc->dev, "failed to register udc\n");
goto err4;
--
2.13.0
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