[PATCH 12/15] am33xx: Support upstream devicetree binding

[Markus Schneider-Pargmann (TI.com)]

Support musb being probed by ti,musb-am33xx. The non-upstream DT probing
used a wrapper driver that probed ti-musb-peripheral and ti-musb-host.
This wrapper registered as UCLASS_MISC, which is why it is requested in
this board.c file.

With the new devicetree the wrapper that registers as UCLASS_MISC is
gone, instead the UCLASS_USB and UCLASS_USB_GADGET_GENERIC have to be
requested.

Also don't fail if the USB devices are not available.

Signed-off-by: Markus Schneider-Pargmann (TI.com) <msp at baylibre.com>
---
 arch/arm/mach-omap2/am33xx/board.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mach-omap2/am33xx/board.c b/arch/arm/mach-omap2/am33xx/board.c
index d7db260513308257f142ea70d5d5c643afc920c9..4bfdb55b2dd5c66cd58bce360cf1c69fb7a00cd6 100644
--- a/arch/arm/mach-omap2/am33xx/board.c
+++ b/arch/arm/mach-omap2/am33xx/board.c
@@ -266,12 +266,16 @@ int arch_misc_init(void)
 	struct udevice *dev;
 	int ret;
 
-	ret = uclass_first_device_err(UCLASS_MISC, &dev);
-	if (ret)
-		return ret;
+	if (IS_ENABLED(CONFIG_OF_UPSTREAM)) {
+		uclass_first_device_err(UCLASS_USB, &dev);
+		ret = uclass_first_device_err(UCLASS_USB_GADGET_GENERIC, &dev);
+	} else {
+		ret = uclass_first_device_err(UCLASS_MISC, &dev);
+	}
 
 #if defined(CONFIG_DM_ETH) && defined(CONFIG_USB_ETHER)
-	usb_ether_init();
+	if (!ret)
+		usb_ether_init();
 #endif
 
 	return 0;

-- 
2.51.0