linux-kernel - [RFC PATCH v3 11/11] media: bcm283x: Include the imx219 node

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Date:   Wed,  2 Feb 2022 18:56:39 +0100
From:   Jean-Michel Hautbois <jeanmichel.hautbois@...asonboard.com>
To:     jeanmichel.hautbois@...asonboard.com
Cc:     dave.stevenson@...pberrypi.com, devicetree@...r.kernel.org,
        kernel-list@...pberrypi.com, laurent.pinchart@...asonboard.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-media@...r.kernel.org, linux-rpi-kernel@...ts.infradead.org,
        lukasz@...y.st, mchehab@...nel.org, naush@...pberrypi.com,
        robh@...nel.org, tomi.valkeinen@...asonboard.com
Subject: [RFC PATCH v3 11/11] media: bcm283x: Include the imx219 node

WARNING:
This patch is only used to demonstrate how the imx219 node is included
in the bcm2711-rpi-4-b device tree, and is not intended to be merged.

Configure the csi1 endpoint, add the imx219 node and connect it through
the i2c mux.

Signed-off-by: Jean-Michel Hautbois <jeanmichel.hautbois@...asonboard.com>
---
 arch/arm/boot/dts/bcm2711-rpi-4-b.dts     |   1 +
 arch/arm/boot/dts/bcm283x-rpi-imx219.dtsi | 102 ++++++++++++++++++++++
 2 files changed, 103 insertions(+)
 create mode 100644 arch/arm/boot/dts/bcm283x-rpi-imx219.dtsi

diff --git a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
index 4432412044de..f7625b70fe57 100644
--- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
+++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
@@ -4,6 +4,7 @@
 #include "bcm2711-rpi.dtsi"
 #include "bcm283x-rpi-usb-peripheral.dtsi"
 #include "bcm283x-rpi-wifi-bt.dtsi"
+#include "bcm283x-rpi-imx219.dtsi"
 
 / {
 	compatible = "raspberrypi,4-model-b", "brcm,bcm2711";
diff --git a/arch/arm/boot/dts/bcm283x-rpi-imx219.dtsi b/arch/arm/boot/dts/bcm283x-rpi-imx219.dtsi
new file mode 100644
index 000000000000..f2c6a85fd731
--- /dev/null
+++ b/arch/arm/boot/dts/bcm283x-rpi-imx219.dtsi
@@ -0,0 +1,102 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <dt-bindings/clock/bcm2835.h>
+
+/ {
+	compatible = "brcm,bcm2835";
+
+	imx219_vdig: fixedregulator@1 {
+		compatible = "regulator-fixed";
+		regulator-name = "imx219_vdig";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+	};
+
+	imx219_vddl: fixedregulator@2 {
+		compatible = "regulator-fixed";
+		regulator-name = "imx219_vddl";
+		regulator-min-microvolt = <1200000>;
+		regulator-max-microvolt = <1200000>;
+	};
+
+	imx219_clk: imx219_clk {
+		#clock-cells = <0>;
+		compatible = "fixed-clock";
+		clock-frequency = <24000000>;
+		clock-output-names = "24MHz-clock";
+	};
+
+	cam1_reg: cam1_reg {
+		compatible = "regulator-fixed";
+		regulator-name = "imx219_vana";
+		enable-active-high;
+		status = "okay";
+		gpio = <&expgpio 5 GPIO_ACTIVE_HIGH>;
+	};
+
+	i2c0mux {
+		compatible = "i2c-mux-pinctrl";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		i2c-parent = <&i2c0>;
+
+		pinctrl-names = "i2c0", "i2c_csi_dsi";
+		pinctrl-0 = <&i2c0_gpio0>;
+		pinctrl-1 = <&i2c0_gpio44>;
+
+		i2c@0 {
+			reg = <0>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
+		i2c@1 {
+			reg = <1>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			imx219: sensor@10 {
+				compatible = "sony,imx219";
+				reg = <0x10>;
+				status = "okay";
+
+				clocks = <&imx219_clk>;
+				clock-names = "xclk";
+
+				VANA-supply = <&cam1_reg>;   /* 2.8v */
+				VDIG-supply = <&imx219_vdig>;   /* 1.8v */
+				VDDL-supply = <&imx219_vddl>;   /* 1.2v */
+
+				rotation = <0>;
+				orientation = <0>;
+
+				port {
+					imx219_0: endpoint {
+						remote-endpoint = <&csi1_ep>;
+						clock-lanes = <0>;
+						data-lanes = <1 2>;
+						clock-noncontinuous;
+						link-frequencies = /bits/ 64 <456000000>;
+					};
+				};
+			};
+		};
+	};
+};
+
+&csi1 {
+	status="okay";
+	num-data-lanes = <2>;
+	port {
+		csi1_ep: endpoint {
+			remote-endpoint = <&imx219_0>;
+			data-lanes = <1 2>;
+			clock-lanes = <0>;
+		};
+	};
+};
+
+&i2c0 {
+	/delete-property/ pinctrl-names;
+	/delete-property/ pinctrl-0;
+};
+
-- 
2.32.0