linux-kernel - [PATCH v2 3/3] ARM: dts: imx6qdl-icore: Add fec phy-handle

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Message-Id: <20191230120021.32630-3-jagan@amarulasolutions.com>
Date:   Mon, 30 Dec 2019 17:30:21 +0530
From:   Jagan Teki <jagan@...rulasolutions.com>
To:     Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>
Cc:     Michael Trimarchi <michael@...rulasolutions.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        NXP Linux Team <linux-imx@....com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-amarula@...rulasolutions.com,
        Jagan Teki <jagan@...rulasolutions.com>
Subject: [PATCH v2 3/3] ARM: dts: imx6qdl-icore: Add fec phy-handle

From: Michael Trimarchi <michael@...rulasolutions.com>

LAN8720 needs a reset of every clock enable. The reset needs
to be done at device level, due the flag PHY_RST_AFTER_CLK_EN.

So, add phy-handle by creating mdio child node inside fec.
This will eventually move the phy-reset-gpio which is defined
in fec node.

Signed-off-by: Michael Trimarchi <michael@...rulasolutions.com>
Signed-off-by: Jagan Teki <jagan@...rulasolutions.com>
---
Changes for v2:
- new patch.

 arch/arm/boot/dts/imx6qdl-icore.dtsi | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/imx6qdl-icore.dtsi b/arch/arm/boot/dts/imx6qdl-icore.dtsi
index 7814f1ef0804..756f3a9f1b4f 100644
--- a/arch/arm/boot/dts/imx6qdl-icore.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-icore.dtsi
@@ -150,10 +150,23 @@
 &fec {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_enet>;
-	phy-reset-gpios = <&gpio7 12 GPIO_ACTIVE_LOW>;
 	clocks = <&clks IMX6QDL_CLK_ENET>, <&clks IMX6QDL_CLK_ENET>, <&rmii_clk>;
 	phy-mode = "rmii";
+	phy-handle = <&eth_phy>;
 	status = "okay";
+
+	mdio {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		eth_phy: ethernet-phy@0 {
+			compatible = "ethernet-phy-ieee802.3-c22";
+			reg = <0>;
+			reset-gpios = <&gpio7 12 GPIO_ACTIVE_LOW>;
+			reset-assert-us = <4000>;
+			reset-deassert-us = <4000>;
+		};
+	};
 };
 
 &gpmi {
-- 
2.18.0.321.gffc6fa0e3