usb: dwc2: gadget: Move gadget phy init into core phy init

Most of the phy initialization is shared between host and gadget,
this adds the turnaround configuration only used by gadgets to
the global phy init.
Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Jules Maselbas <jmaselbas@kalray.eu>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

drivers/usb/dwc2/core.c

@@ -1152,6 +1152,15 @@ static int dwc2_hs_phy_init(struct dwc2_hsotg *hsotg, bool select_phy)
 		usbcfg &= ~(GUSBCFG_ULPI_UTMI_SEL | GUSBCFG_PHYIF16);
 		if (hsotg->params.phy_utmi_width == 16)
 			usbcfg |= GUSBCFG_PHYIF16;
+
+		/* Set turnaround time */
+		if (dwc2_is_device_mode(hsotg)) {
+			usbcfg &= ~GUSBCFG_USBTRDTIM_MASK;
+			if (hsotg->params.phy_utmi_width == 16)
+				usbcfg |= 5 << GUSBCFG_USBTRDTIM_SHIFT;
+			else
+				usbcfg |= 9 << GUSBCFG_USBTRDTIM_SHIFT;
+		}
 		break;
 	default:
 		dev_err(hsotg->dev, "FS PHY selected at HS!\n");

drivers/usb/dwc2/gadget.c

@@ -3314,30 +3314,15 @@ void dwc2_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg,
 
 	/* keep other bits untouched (so e.g. forced modes are not lost) */
 	usbcfg = dwc2_readl(hsotg, GUSBCFG);
-	/* remove the HNP/SRP */
-	usbcfg &= ~(GUSBCFG_TOUTCAL_MASK | GUSBCFG_PHYIF16 | GUSBCFG_SRPCAP |
-		GUSBCFG_HNPCAP);
+	usbcfg &= ~GUSBCFG_TOUTCAL_MASK;
 	usbcfg |= GUSBCFG_TOUTCAL(7);
 
-	if (hsotg->params.phy_type == DWC2_PHY_TYPE_PARAM_FS &&
-	    (hsotg->params.speed == DWC2_SPEED_PARAM_FULL ||
-	     hsotg->params.speed == DWC2_SPEED_PARAM_LOW)) {
-		/* FS/LS Dedicated Transceiver Interface */
-		usbcfg |= GUSBCFG_PHYSEL;
-	} else if (hsotg->params.phy_type == DWC2_PHY_TYPE_PARAM_UTMI) {
-		if (hsotg->params.phy_utmi_width == 16)
-			usbcfg |= GUSBCFG_PHYIF16;
-
-		/* Set turnaround time */
-		usbcfg &= ~GUSBCFG_USBTRDTIM_MASK;
-		if (hsotg->params.phy_utmi_width == 16)
-			usbcfg |= 5 << GUSBCFG_USBTRDTIM_SHIFT;
-		else
-			usbcfg |= 9 << GUSBCFG_USBTRDTIM_SHIFT;
-	}
-
+	/* remove the HNP/SRP and set the PHY */
+	usbcfg &= ~(GUSBCFG_SRPCAP | GUSBCFG_HNPCAP);
         dwc2_writel(hsotg, usbcfg, GUSBCFG);
 
+	dwc2_phy_init(hsotg, true);
+
 	dwc2_hsotg_init_fifo(hsotg);
 
 	if (!is_usb_reset)