usb: cdns3: core: quit if it uses role switch class

If the board uses role switch class for switching the role, it should
not depends on SoC OTG hardware siginal any more, so quit early.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>

diff --git a/drivers/usb/cdns3/core.c b/drivers/usb/cdns3/core.c
index 4c1445cf2ad06956db2ee3fee01faa88868bdac6..a0f73d4711ae2168226468aa3fd8cfd20d5e88ab 100644 (file)
--- a/drivers/usb/cdns3/core.c
+++ b/drivers/usb/cdns3/core.c
@@ -280,6 +280,10 @@ int cdns3_hw_role_switch(struct cdns3 *cdns)
        enum usb_role real_role, current_role;
        int ret = 0;
 
+       /* Depends on role switch class */
+       if (cdns->role_sw)
+               return 0;
+
        pm_runtime_get_sync(cdns->dev);
 
        current_role = cdns->role;