rockchip: xhci: dm: convert fdt_get to dev_read

With the new dev_read functions available, we can convert the rockchip
architecture-specific drivers and common drivers used by these devices
over to the dev_read family of calls.

This change covers the USB3 (xhci) driver for the Rockchip devices.
Signed-off-by: NPhilipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>

drivers/usb/host/xhci-rockchip.c

@@ -86,18 +86,15 @@ static void rockchip_dwc3_phy_setup(struct dwc3 *dwc3_reg,
 				    struct udevice *dev)
 {
 	u32 reg;
-	const void *blob = gd->fdt_blob;
 	u32 utmi_bits;
 
 	/* Set dwc3 usb2 phy config */
 	reg = readl(&dwc3_reg->g_usb2phycfg[0]);
 
-	if (fdtdec_get_bool(blob, dev_of_offset(dev),
-			    "snps,dis-enblslpm-quirk"))
+	if (dev_read_bool(dev, "snps,dis-enblslpm-quirk"))
 		reg &= ~DWC3_GUSB2PHYCFG_ENBLSLPM;
 
-	utmi_bits = fdtdec_get_int(blob, dev_of_offset(dev),
-				   "snps,phyif-utmi-bits", -1);
+	utmi_bits = dev_read_u32_default(dev, "snps,phyif-utmi-bits", -1);
 	if (utmi_bits == 16) {
 		reg |= DWC3_GUSB2PHYCFG_PHYIF;
 		reg &= ~DWC3_GUSB2PHYCFG_USBTRDTIM_MASK;
@@ -108,12 +105,10 @@ static void rockchip_dwc3_phy_setup(struct dwc3 *dwc3_reg,
 		reg |= DWC3_GUSB2PHYCFG_USBTRDTIM_8BIT;
 	}
 
-	if (fdtdec_get_bool(blob, dev_of_offset(dev),
-			    "snps,dis-u2-freeclk-exists-quirk"))
+	if (dev_read_bool(dev, "snps,dis-u2-freeclk-exists-quirk"))
 		reg &= ~DWC3_GUSB2PHYCFG_U2_FREECLK_EXISTS;
 
-	if (fdtdec_get_bool(blob, dev_of_offset(dev),
-			    "snps,dis-u2-susphy-quirk"))
+	if (dev_read_bool(dev, "snps,dis-u2-susphy-quirk"))
 		reg &= ~DWC3_GUSB2PHYCFG_SUSPHY;
 
 	writel(reg, &dwc3_reg->g_usb2phycfg[0]);