[PATCH] configs: am62x_evm_*: Fix USB DFU configuration

[Roger Quadros]

CONFIG_USB_XHCI_DWC3 is not required for AM62x as the XHCI
driver is registered through the dwc3-generic driver.

CONFIG_USB_XHCI_DWC3 causes problems by hijacking the
USB controller even if it is not set for Host mode in
device tree.

'dm tree' output after 'usb start' is fixed from

 simple_bus    5  [ + ]   dwc3-am62             |   |-- dwc3-usb at f900000
 usb_gadget    0  [   ]   dwc3-generic-periphe  |   |   |-- usb at 31000000
 usb           0  [ + ]   xhci-dwc3             |   |   `-- usb at 31000000
 usb_hub       0  [ + ]   usb_hub               |   |       `-- usb_hub
 simple_bus    6  [ + ]   dwc3-am62             |   |-- dwc3-usb at f910000
 usb           1  [ + ]   dwc3-generic-host     |   |   |-- usb at 31100000
 usb_hub       1  [ + ]   usb_hub               |   |   |   `-- usb_hub
 usb           1  [ + ]   xhci-dwc3             |   |   `-- usb at 31100000
 usb_hub       2  [ + ]   usb_hub               |   |       `-- usb_hub

[notice that 'xhci-dwc3' and 'usb_hub' drivers are probed
 for both USB instances although the first instance
 is supposed to be 'peripheral' only]

to

 simple_bus    5  [   ]   dwc3-am62             |   |-- dwc3-usb at f900000
 usb_gadget    0  [   ]   dwc3-generic-periphe  |   |   `-- usb at 31000000
 simple_bus    6  [ + ]   dwc3-am62             |   |-- dwc3-usb at f910000
 usb           1  [ + ]   dwc3-generic-host     |   |   `-- usb at 31100000
 usb_hub       0  [ + ]   usb_hub               |   |       `-- usb_hub

Fixes: dfc2dff5a844 ("configs: am62x_evm_*: Enable USB and DFU support")
Signed-off-by: Roger Quadros <rogerq at kernel.org>
---
 configs/am62x_a53_usbdfu.config | 1 -
 1 file changed, 1 deletion(-)

diff --git a/configs/am62x_a53_usbdfu.config b/configs/am62x_a53_usbdfu.config
index 3a19cf23287..0d3c6df1e73 100644
--- a/configs/am62x_a53_usbdfu.config
+++ b/configs/am62x_a53_usbdfu.config
@@ -16,7 +16,6 @@ CONFIG_USB=y
 CONFIG_DM_USB_GADGET=y
 CONFIG_SPL_DM_USB_GADGET=y
 CONFIG_USB_XHCI_HCD=y
-CONFIG_USB_XHCI_DWC3=y
 CONFIG_USB_DWC3=y
 CONFIG_USB_DWC3_GENERIC=y
 CONFIG_SPL_USB_DWC3_GENERIC=y

---
base-commit: 3073246d1be682071d8b3d07d06c2484907aed60
change-id: 20241203-am62-usb-xhci-be62bc9584c9

Best regards,
-- 
Roger Quadros <rogerq at kernel.org>