build/patch/kernel/archive/sunxi-5.10/megous/arm64-dts-sun50i-a64-pinephone-Add-front-back-camera.patch

From e5b86a9c2e8ead243b2f1cb29457d95e97f7bcce Mon Sep 17 00:00:00 2001
From: Ondrej Jirman <megous@megous.com>
Date: Wed, 8 Apr 2020 14:13:08 +0200
Subject: [PATCH 100/351] arm64: dts: sun50i-a64-pinephone: Add front/back
 cameras

Pinephone has OV5640 back camera and GC2145 front camera. Add support
for both.

Signed-off-by: Ondrej Jirman <megous@megous.com>
---
 .../dts/allwinner/sun50i-a64-pinephone.dtsi   | 95 ++++++++++++++++++-
 1 file changed, 94 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
index 9a924c9475fe..520faec5abd1 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
@@ -28,6 +28,15 @@ chosen {
 		stdout-path = "serial0:115200n8";
 	};
 
+	i2c_csi: i2c-csi {
+		compatible = "i2c-gpio";
+		sda-gpios = <&pio 4 13 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; /* PE13 */
+		scl-gpios = <&pio 4 12 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; /* PE12 */
+		i2c-gpio,delay-us = <3>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+	};
+
 	leds {
 		compatible = "gpio-leds";
 
@@ -95,6 +104,36 @@ &cpu3 {
 	cpu-supply = <&reg_dcdc2>;
 };
 
+&csi {
+	pinctrl-0 = <&csi_pins>, <&csi_mclk_pin>;
+	status = "okay";
+
+	port {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		csi_ov5640_ep: endpoint@0 {
+			reg = <0>;
+			remote-endpoint = <&ov5640_ep>;
+			bus-width = <8>;
+			hsync-active = <1>; /* Active high */
+			vsync-active = <0>; /* Active low */
+			data-active = <1>;  /* Active high */
+			pclk-sample = <1>;  /* Rising */
+		};
+
+		csi_gc2145_ep: endpoint@1 {
+			reg = <1>;
+			remote-endpoint = <&gc2145_ep>;
+			bus-width = <8>;
+			hsync-active = <1>;
+			vsync-active = <1>;
+			data-active = <1>;
+			pclk-sample = <1>;
+		};
+	};
+};
+
 &dai {
 	status = "okay";
 };
@@ -129,6 +168,56 @@ &ehci1 {
 	status = "okay";
 };
 
+&i2c_csi {
+	gc2145: front-camera@3c {
+		compatible = "galaxycore,gc2145";
+		reg = <0x3c>;
+		clocks = <&ccu CLK_CSI_MCLK>;
+		clock-names = "xclk";
+
+		AVDD-supply = <&reg_dldo3>;
+		DVDD-supply = <&reg_aldo1>;
+		IOVDD-supply = <&reg_eldo3>;
+		reset-gpios = <&pio 4 16 (GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN)>; /* PE16 */
+		enable-gpios = <&pio 4 17 (GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN)>; /* PE17 */
+
+		port {
+			gc2145_ep: endpoint {
+				remote-endpoint = <&csi_gc2145_ep>;
+				bus-width = <8>;
+				hsync-active = <1>;
+				vsync-active = <1>;
+				data-active = <1>;
+				pclk-sample = <1>;
+			};
+		};
+	};
+
+	ov5640: rear-camera@4c {
+		compatible = "ovti,ov5640";
+		reg = <0x4c>;
+		clocks = <&ccu CLK_CSI_MCLK>;
+		clock-names = "xclk";
+
+		AVDD-supply = <&reg_dldo3>;
+		DOVDD-supply = <&reg_aldo1>; /* shared with AFVCC */
+		DVDD-supply = <&reg_eldo3>;
+		reset-gpios = <&pio 3 3 (GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN)>; /* PD3 */
+		powerdown-gpios = <&pio 2 0 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; /* PC0 */
+
+		port {
+			ov5640_ep: endpoint {
+				remote-endpoint = <&csi_ov5640_ep>;
+				bus-width = <8>;
+				hsync-active = <1>; /* Active high */
+				vsync-active = <0>; /* Active low */
+				data-active = <1>;  /* Active high */
+				pclk-sample = <1>;  /* Rising */
+			};
+		};
+	};
+};
+
 &i2c0 {
 	status = "okay";
 
@@ -253,7 +342,11 @@ &pio {
 	vcc-pb-supply = <&reg_dcdc1>;
 	vcc-pc-supply = <&reg_dcdc1>;
 	vcc-pd-supply = <&reg_dcdc1>;
-	vcc-pe-supply = <&reg_aldo1>;
+	/* pinctrl would enable this even if no camera is powered,
+	 * which is wrong/not necessary
+	 *
+	 * vcc-pe-supply = <&reg_aldo1>; (also used by pogo pins i2c)
+	 */
 	vcc-pf-supply = <&reg_dcdc1>;
 	vcc-pg-supply = <&reg_dldo4>;
 	vcc-ph-supply = <&reg_dcdc1>;
-- 
2.34.0