From: Patrick Delaunay <patrick.delaunay@foss.st.com>
Date: Tue, 14 Sep 2021 12:31:16 +0000 (+0200)
Subject: phy: stm32-usbphyc: use connector for vbus-supply with phy-stm32-usbphyc
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=5b4fa85d6501e77bd6ed8e5fd1e527927f9f947d;p=u-boot.git

phy: stm32-usbphyc: use connector for vbus-supply with phy-stm32-usbphyc

The vbus-supply is an optional property of sub-node connector node.
and no more in the usb phyc node (in first proposed binding).

This regulator for USB VBUS may be needed for host mode.

See the latest kernel binding for details in
Documentation/devicetree/bindings/phy/phy-stm32-usbphyc.yaml.

  usbphyc_port0: usb-phy@0 {
      reg = <0>;
      phy-supply = <&vdd_usb>;
      #phy-cells = <0>;
      connector {
          compatible = "usb-a-connector";
          vbus-supply = <&vbus_sw>;
      };
  };

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
---

diff --git a/drivers/phy/phy-stm32-usbphyc.c b/drivers/phy/phy-stm32-usbphyc.c
index 02d859a039..c206efd28d 100644
--- a/drivers/phy/phy-stm32-usbphyc.c
+++ b/drivers/phy/phy-stm32-usbphyc.c
@@ -339,7 +339,7 @@ static int stm32_usbphyc_probe(struct udevice *dev)
 {
 	struct stm32_usbphyc *usbphyc = dev_get_priv(dev);
 	struct reset_ctl reset;
-	ofnode node;
+	ofnode node, connector;
 	int i, ret;
 
 	usbphyc->base = dev_read_addr(dev);
@@ -395,10 +395,12 @@ static int stm32_usbphyc_probe(struct udevice *dev)
 			return ret;
 		}
 
-		ret = stm32_usbphyc_get_regulator(node, "vbus-supply",
-						  &usbphyc_phy->vbus);
-		if (ret)
-			usbphyc_phy->vbus = NULL;
+		usbphyc_phy->vbus = NULL;
+		connector = ofnode_find_subnode(node, "connector");
+		if (ofnode_valid(connector)) {
+			ret = stm32_usbphyc_get_regulator(connector, "vbus-supply",
+							  &usbphyc_phy->vbus);
+		}
 
 		node = dev_read_next_subnode(node);
 	}