diff mbox series

[6/6,DO,NOT,MERGE] ARM: dts: sunxi: libretech-all-h3-cc: Add HDF5640 camera module

Message ID 20181130075849.16941-7-wens@csie.org (mailing list archive)
State Not Applicable
Headers show
Series media: sun6i: Separate H3 compatible from A31 | expand

Commit Message

Chen-Yu Tsai Nov. 30, 2018, 7:58 a.m. UTC 
The Libretech ALL-H3-CC is compatible with the Orange Pi's camera sensor
module. This module itself features a detachable camera sensor module
ribbon connector, which is populated with a GC2035 sensor by default.
The connector is also compatible with Bananapi's HDF5640 camera module,
which features an OV5640 sensor. The Orange Pi module however does not
activate the auto focus feature of the HDF5640 module.

Enable the camera by enabling the CSI controller, I2C control bus, and
adding needed regulator supplies. As the schematics for the module are
not available, the regulators and GPIO lines controlling them are just
an educated guess.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
 .../boot/dts/sunxi-libretech-all-h3-cc.dtsi   | 81 +++++++++++++++++++
 1 file changed, 81 insertions(+)
diff mbox series

Patch

diff --git a/arch/arm/boot/dts/sunxi-libretech-all-h3-cc.dtsi b/arch/arm/boot/dts/sunxi-libretech-all-h3-cc.dtsi
index 1eadc132390c..3252e1af59cd 100644
--- a/arch/arm/boot/dts/sunxi-libretech-all-h3-cc.dtsi
+++ b/arch/arm/boot/dts/sunxi-libretech-all-h3-cc.dtsi
@@ -52,6 +52,36 @@ 
 		};
 	};
 
+	reg_cam_avdd: cam-avdd {
+		compatible = "regulator-fixed";
+		regulator-name = "csi-avdd";
+		regulator-min-microvolt = <2800000>;
+		regulator-max-microvolt = <2800000>;
+		startup-delay-us = <200>; /* 50 us + board delays */
+		enable-active-high;
+		gpio = <&r_pio 0 0 GPIO_ACTIVE_HIGH>; /* PL0 */
+	};
+
+	reg_cam_dovdd: cam-dovdd {
+		compatible = "regulator-fixed";
+		regulator-name = "csi-dovdd";
+		regulator-min-microvolt = <2800000>;
+		regulator-max-microvolt = <2800000>;
+		startup-delay-us = <200>; /* 50 us + board delays */
+		enable-active-high;
+		gpio = <&r_pio 0 0 GPIO_ACTIVE_HIGH>; /* PL0 */
+	};
+
+	reg_cam_dvdd: cam-dvdd {
+		compatible = "regulator-fixed";
+		regulator-name = "csi-dvdd";
+		regulator-min-microvolt = <1500000>;
+		regulator-max-microvolt = <1500000>;
+		startup-delay-us = <200>; /* 50 us + board delays */
+		enable-active-high;
+		gpio = <&r_pio 0 1 GPIO_ACTIVE_HIGH>; /* PL1 */
+	};
+
 	reg_vcc1v2: vcc1v2 {
 		compatible = "regulator-fixed";
 		regulator-name = "vcc1v2";
@@ -128,6 +158,26 @@ 
 	cpu-supply = <&reg_vdd_cpux>;
 };
 
+&csi {
+	status = "okay";
+
+	port {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		/* Parallel bus endpoint */
+		csi_from_ov5640: endpoint {
+			remote-endpoint = <&ov5640_to_csi>;
+			bus-width = <8>;
+			data-shift = <2>;
+			hsync-active = <1>; /* Active high */
+			vsync-active = <0>; /* Active low */
+			data-active = <1>;  /* Active high */
+			pclk-sample = <1>;  /* Rising */
+		};
+	};
+};
+
 &de {
 	status = "okay";
 };
@@ -165,6 +215,37 @@ 
 	};
 };
 
+&i2c2 {
+	status = "okay";
+
+	ov5640: camera@3c {
+		compatible = "ovti,ov5640";
+		reg = <0x3c>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&csi_mclk_pin>;
+		clocks = <&ccu CLK_CSI_MCLK>;
+		clock-names = "xclk";
+
+		powerdown-gpios = <&pio 4 14 GPIO_ACTIVE_HIGH>; /* PE14 */
+		reset-gpios = <&pio 4 15 GPIO_ACTIVE_LOW>; /* PE15 */
+		AVDD-supply = <&reg_cam_avdd>;
+		DOVDD-supply = <&reg_cam_dovdd>;
+		DVDD-supply = <&reg_cam_dvdd>;
+
+		port {
+			ov5640_to_csi: endpoint {
+				remote-endpoint = <&csi_from_ov5640>;
+				bus-width = <8>;
+				data-shift = <2>;
+				hsync-active = <1>; /* Active high */
+				vsync-active = <0>; /* Active low */
+				data-active = <1>;  /* Active high */
+				pclk-sample = <1>;  /* Rising */
+			};
+		};
+	};
+};
+
 &ir {
 	pinctrl-names = "default";
 	pinctrl-0 = <&ir_pins_a>;