From d8faff7e7581ee3417675e2f64da18ffb831751a Mon Sep 17 00:00:00 2001
From: Lee Jackson <info@arducam.com>
Date: Fri, 27 Aug 2021 14:45:43 +0800
Subject: [PATCH] overlays: Add imx519-overlay.dts

Added overlays for enabling IMX519 and add the
relevant information to the README.

Signed-off-by: Lee Jackson <info@arducam.com>
---
 arch/arm/boot/dts/overlays/Makefile           |   1 +
 arch/arm/boot/dts/overlays/README             |  11 ++
 arch/arm/boot/dts/overlays/imx519-overlay.dts | 115 ++++++++++++++++++
 3 files changed, 127 insertions(+)
 create mode 100644 arch/arm/boot/dts/overlays/imx519-overlay.dts

--- a/arch/arm/boot/dts/overlays/Makefile
+++ b/arch/arm/boot/dts/overlays/Makefile
@@ -98,6 +98,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
 	imx290.dtbo \
 	imx378.dtbo \
 	imx477.dtbo \
+	imx519.dtbo \
 	iqaudio-codec.dtbo \
 	iqaudio-dac.dtbo \
 	iqaudio-dacplus.dtbo \
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -1738,6 +1738,17 @@ Params: rotation                Mounting
                                 2 = external, default external)
 
 
+Name:   imx519
+Info:   Sony IMX519 camera module.
+        Uses Unicam 1, which is the standard camera connector on most Pi
+        variants.
+Load:   dtoverlay=imx519,<param>=<val>
+Params: rotation                Mounting rotation of the camera sensor (0 or
+                                180, default 0)
+        orientation             Sensor orientation (0 = front, 1 = rear,
+                                2 = external, default external)
+
+
 Name:   iqaudio-codec
 Info:   Configures the IQaudio Codec audio card
 Load:   dtoverlay=iqaudio-codec
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/imx519-overlay.dts
@@ -0,0 +1,115 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Definitions for imx519 camera module on VC I2C bus
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+
+/{
+	compatible = "brcm,bcm2835";
+
+	fragment@0 {
+		target = <&i2c_csi_dsi>;
+		__overlay__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "okay";
+
+			imx519: imx519@1a {
+				compatible = "sony,imx519";
+				reg = <0x1a>;
+				status = "okay";
+
+				clocks = <&imx519_clk>;
+				clock-names = "xclk";
+
+				VANA-supply = <&cam1_reg>;	/* 2.8v */
+				VDIG-supply = <&imx519_vdig>;	/* 1.8v */
+				VDDL-supply = <&imx519_vddl>;	/* 1.2v */
+
+				rotation = <0>;
+				orientation = <2>;
+
+				port {
+					imx519_0: endpoint {
+						remote-endpoint = <&csi1_ep>;
+						clock-lanes = <0>;
+						data-lanes = <1 2>;
+						clock-noncontinuous;
+						link-frequencies =
+							/bits/ 64 <493500000>;
+					};
+				};
+			};
+		};
+	};
+
+	fragment@1 {
+		target = <&csi1>;
+		__overlay__ {
+			status = "okay";
+
+			port{
+				csi1_ep: endpoint{
+					remote-endpoint = <&imx519_0>;
+					clock-lanes = <0>;
+					data-lanes = <1 2>;
+					clock-noncontinuous;
+				};
+			};
+		};
+	};
+
+	fragment@2 {
+		target = <&i2c0if>;
+		__overlay__ {
+			status = "okay";
+		};
+	};
+
+	fragment@3 {
+		target-path="/";
+		__overlay__ {
+			imx519_vdig: fixedregulator@1 {
+				compatible = "regulator-fixed";
+				regulator-name = "imx519_vdig";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+			};
+			imx519_vddl: fixedregulator@2 {
+				compatible = "regulator-fixed";
+				regulator-name = "imx519_vddl";
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <1200000>;
+			};
+
+			imx519_clk: camera-clk {
+				compatible = "fixed-clock";
+				#clock-cells = <0>;
+				clock-frequency = <24000000>;
+			};
+		};
+	};
+
+	fragment@4 {
+		target = <&i2c0mux>;
+		__overlay__ {
+			status = "okay";
+		};
+	};
+
+	fragment@5 {
+		target = <&cam1_reg>;
+		__overlay__ {
+			status = "okay";
+			regulator-name = "imx519_vana";
+			regulator-min-microvolt = <2800000>;
+			regulator-max-microvolt = <2800000>;
+		};
+	};
+
+	__overrides__ {
+		rotation = <&imx519>,"rotation:0";
+		orientation = <&imx519>,"orientation:0";
+	};
+};