linux-kernel - [RFC V2 5/5] arm64: dts: imx8mm-evk: Enable OV5640 Camera

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Message-Id: <20211023203457.1217821-6-aford173@gmail.com>
Date:   Sat, 23 Oct 2021 15:34:56 -0500
From:   Adam Ford <aford173@...il.com>
To:     linux-arm-kernel@...ts.infradead.org
Cc:     linux-media@...r.kernel.org, laurent.pinchart@...asonboard.com,
        cstevens@...conembedded.com, aford@...conembedded.com,
        Adam Ford <aford173@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        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>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [RFC V2 5/5] arm64: dts: imx8mm-evk: Enable OV5640 Camera

The schematic shows support for a camera interface, and the NXP
kernel shows it is an OV5640.

Signed-off-by: Adam Ford <aford173@...il.com>
---
 arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi | 44 +++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
index e033d0257b5a..27217d30b8d8 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
@@ -239,6 +239,10 @@ ldo6_reg: LDO6 {
 	};
 };
 
+&csi {
+	status = "okay";
+};
+
 &i2c2 {
 	clock-frequency = <400000>;
 	pinctrl-names = "default";
@@ -287,6 +291,38 @@ pca6416: gpio@20 {
 		gpio-controller;
 		#gpio-cells = <2>;
 	};
+
+	camera@3c {
+		compatible = "ovti,ov5640";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_ov5640>;
+		reg = <0x3c>;
+		clocks = <&clk IMX8MM_CLK_CLKO1>;
+		clock-names = "xclk";
+		assigned-clocks = <&clk IMX8MM_CLK_CLKO1>;
+		assigned-clock-parents = <&clk IMX8MM_CLK_24M>;
+		assigned-clock-rates = <24000000>;
+		powerdown-gpios = <&gpio1 7 GPIO_ACTIVE_HIGH>;
+		reset-gpios = <&gpio1 6 GPIO_ACTIVE_LOW>;
+
+		port {
+			/* MIPI CSI-2 bus endpoint */
+			ov5640_to_mipi_csi2: endpoint {
+				remote-endpoint = <&imx8mm_mipi_csi_in>;
+				clock-lanes = <0>;
+				data-lanes = <1 2>;
+			};
+		};
+	};
+};
+
+&imx8mm_mipi_csi_in {
+	remote-endpoint = <&ov5640_to_mipi_csi2>;
+	data-lanes = <1 2>;
+};
+
+&mipi_csi2 {
+	status = "okay";
 };
 
 &sai3 {
@@ -406,6 +442,14 @@ MX8MM_IOMUXC_I2C3_SDA_I2C3_SDA			0x400001c3
 		>;
 	};
 
+	pinctrl_ov5640: ov5640grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_GPIO1_IO07_GPIO1_IO7		0x19
+			MX8MM_IOMUXC_GPIO1_IO06_GPIO1_IO6		0x19
+			MX8MM_IOMUXC_GPIO1_IO14_CCMSRCGPCMIX_CLKO1	0x59
+		>;
+	};
+
 	pinctrl_pmic: pmicirqgrp {
 		fsl,pins = <
 			MX8MM_IOMUXC_GPIO1_IO03_GPIO1_IO3		0x141
-- 
2.25.1