linux-kernel - [PATCH v3 02/12] ARM: dts: imx7d: cl-som-imx7: add phy-reset-gpios

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Date:   Fri, 31 Jan 2020 08:36:28 +0000
From:   André Draszik <git@...red.net>
To:     linux-kernel@...r.kernel.org
Cc:     André Draszik <git@...red.net>,
        Ilya Ledvich <ilya@...pulab.co.il>,
        Igor Grinberg <grinberg@...pulab.co.il>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v3 02/12] ARM: dts: imx7d: cl-som-imx7: add phy-reset-gpios

According to the design team:
* reset input PHY0 is directly connected to the
  corresponding pin GPIO1_4 in the i.MX7
* reset for PHY1 is done using the gpio expander bit 4

While touching this area, also add a 'compatible'
to the phy to make it more clear what this is and
which driver handles this - an Ethernet phy attached
to mdio, handled by of_mdio.c

Signed-off-by: André Draszik <git@...red.net>
Cc: Ilya Ledvich <ilya@...pulab.co.il>
Cc: Igor Grinberg <grinberg@...pulab.co.il>
Cc: Rob Herring <robh+dt@...nel.org>
Cc: Mark Rutland <mark.rutland@....com>
Cc: Shawn Guo <shawnguo@...nel.org>
Cc: Sascha Hauer <s.hauer@...gutronix.de>
Cc: Pengutronix Kernel Team <kernel@...gutronix.de>
Cc: Fabio Estevam <festevam@...il.com>
Cc: NXP Linux Team <linux-imx@....com>
Cc: devicetree@...r.kernel.org
Cc: linux-arm-kernel@...ts.infradead.org
---
 arch/arm/boot/dts/imx7d-cl-som-imx7.dts | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/imx7d-cl-som-imx7.dts b/arch/arm/boot/dts/imx7d-cl-som-imx7.dts
index 0d962e9fe83a..e0432a3aa36f 100644
--- a/arch/arm/boot/dts/imx7d-cl-som-imx7.dts
+++ b/arch/arm/boot/dts/imx7d-cl-som-imx7.dts
@@ -30,13 +30,14 @@
 
 &fec1 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&pinctrl_enet1>;
+	pinctrl-0 = <&pinctrl_enet1 &pinctrl_enet1phy>;
 	assigned-clocks = <&clks IMX7D_ENET1_TIME_ROOT_SRC>,
 			  <&clks IMX7D_ENET1_TIME_ROOT_CLK>;
 	assigned-clock-parents = <&clks IMX7D_PLL_ENET_MAIN_100M_CLK>;
 	assigned-clock-rates = <0>, <100000000>;
 	phy-mode = "rgmii-id";
 	phy-handle = <&ethphy0>;
+	phy-reset-gpios = <&gpio1 4 GPIO_ACTIVE_LOW>;
 	fsl,magic-packet;
 	status = "okay";
 
@@ -65,6 +66,7 @@
 	assigned-clock-rates = <0>, <100000000>;
 	phy-mode = "rgmii-id";
 	phy-handle = <&ethphy1>;
+	phy-reset-gpios = <&pca9555 4 GPIO_ACTIVE_LOW>;
 	fsl,magic-packet;
 	status = "okay";
 };
@@ -264,3 +266,11 @@
 		>;
 	};
 };
+
+&iomuxc_lpsr {
+	pinctrl_enet1phy: enet1phygrp {
+		fsl,pins = <
+			MX7D_PAD_LPSR_GPIO1_IO04__GPIO1_IO4	0x34
+		>;
+	};
+};
-- 
2.23.0.rc1