usb: dwc3: use a helper function for operation mode setting

There are two where need to set operational mode:
- during initialization while we decide to run in host,device or DRD
  mode
- at runtime via the debugfs interface.

This patch provides a new function which sets the operational mode and
moves its initialiation to the mode switch instead in the gadget code
itself.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>

1 files changed, 0 insertions, 2 deletions

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index b84418e88774..fab4ee0082e2 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1158,9 +1158,7 @@ static int dwc3_gadget_start(struct usb_gadget *g,
         reg = dwc3_readl(dwc->regs, DWC3_GCTL);
 
         reg &= ~DWC3_GCTL_SCALEDOWN(3);
-        reg &= ~DWC3_GCTL_PRTCAPDIR(DWC3_GCTL_PRTCAP_OTG);
         reg &= ~DWC3_GCTL_DISSCRAMBLE;
-        reg |= DWC3_GCTL_PRTCAPDIR(DWC3_GCTL_PRTCAP_DEVICE);
 
         switch (DWC3_GHWPARAMS1_EN_PWROPT(dwc->hwparams.hwparams0)) {
         case DWC3_GHWPARAMS1_EN_PWROPT_CLK: