[12/14,DO,NOT,MERGE] ARM: dts: sun4i: cubieboard: Enable OV7670 camera on CSI1
diff mbox series

Message ID 20191215165924.28314-13-wens@kernel.org
State Not Applicable
Headers show
Series
  • media: sun4i-csi: A10/A20 CSI1 and R40 CSI0 support
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Commit Message

Chen-Yu Tsai Dec. 15, 2019, 4:59 p.m. UTC
From: Chen-Yu Tsai <wens@csie.org>

The Cubieboard has CSI1 pins exposed on one of its GPIO headers.
Combined with I2C1 on the same header, a connected OV7670 based
camera module can be used. Power is provided via the 5V rail on
the same header. The module has onboard LDOs for the sensor's
various power rails.

Add a device node for the sensor, enable CSI1 and I2C1, and hook
everything up.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
 arch/arm/boot/dts/sun4i-a10-cubieboard.dts | 42 ++++++++++++++++++++++
 1 file changed, 42 insertions(+)

Patch
diff mbox series

diff --git a/arch/arm/boot/dts/sun4i-a10-cubieboard.dts b/arch/arm/boot/dts/sun4i-a10-cubieboard.dts
index 6ca02e824acc..29bfec8fad5b 100644
--- a/arch/arm/boot/dts/sun4i-a10-cubieboard.dts
+++ b/arch/arm/boot/dts/sun4i-a10-cubieboard.dts
@@ -101,6 +101,25 @@  &cpu0 {
 	cpu-supply = <&reg_dcdc2>;
 };
 
+&csi1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&csi1_8bits_pg_pins>;
+	status = "okay";
+
+	port {
+		/* Parallel bus endpoint */
+		csi_from_ov7670: endpoint {
+			remote-endpoint = <&ov7670_to_csi>;
+			bus-width = <8>;
+			/* driver is broken */
+			hsync-active = <0>; /* Active high */
+			vsync-active = <1>; /* Active high */
+			data-active = <1>;  /* Active high */
+			pclk-sample = <1>;  /* Rising */
+		};
+	};
+};
+
 &de {
 	status = "okay";
 };
@@ -143,6 +162,29 @@  axp209: pmic@34 {
 
 &i2c1 {
 	status = "okay";
+
+	ov7670: camera@21 {
+		compatible = "ovti,ov7670";
+		reg = <0x21>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&csi1_clk_pg_pin>;
+		clocks = <&ccu CLK_CSI1>;
+		clock-names = "xclk";
+
+		reset-gpios = <&pio 7 14 GPIO_ACTIVE_LOW>; /* PH14 */
+		powerdown-gpios = <&pio 7 15 GPIO_ACTIVE_HIGH>; /* PH15 */
+
+		port {
+			ov7670_to_csi: endpoint {
+				remote-endpoint = <&csi_from_ov7670>;
+				bus-width = <8>;
+				hsync-active = <1>; /* Active high */
+				vsync-active = <1>; /* Active high */
+				data-active = <1>;  /* Active high */
+				pclk-sample = <1>;  /* Rising */
+			};
+		};
+	};
 };
 
 &ir0 {