Enable the camera pipeline with a imx335 sensor connected to the
dcmipp via the csi interface.

Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>

---

v2:
  - correct regulators & camera node names
  - removal of powerdown property within imx335 node
  - removal of useless status property within imx335 node
  - correct imx335 reset-gpio polarity
---
 arch/arm64/boot/dts/st/stm32mp257f-ev1.dts | 85 ++++++++++++++++++++++++++++++
 1 file changed, 85 insertions(+)

diff --git a/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts b/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts
index 214191a8322b81e7ae453503863b4465d9b625e0..d45851b3904d760f73298bf7b260f917b582db55 100644
--- a/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts
+++ b/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts
@@ -27,6 +27,38 @@ chosen {
 		stdout-path = "serial0:115200n8";
 	};
 
+	clocks {
+		clk_ext_camera: clk-ext-camera {
+			#clock-cells = <0>;
+			compatible = "fixed-clock";
+			clock-frequency = <24000000>;
+		};
+	};
+
+	imx335_2v9: regulator-2v9 {
+		compatible = "regulator-fixed";
+		regulator-name = "imx335-avdd";
+		regulator-min-microvolt = <2900000>;
+		regulator-max-microvolt = <2900000>;
+		regulator-always-on;
+	};
+
+	imx335_1v8: regulator-1v8 {
+		compatible = "regulator-fixed";
+		regulator-name = "imx335-ovdd";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		regulator-always-on;
+	};
+
+	imx335_1v2: regulator-1v2 {
+		compatible = "regulator-fixed";
+		regulator-name = "imx335-dvdd";
+		regulator-min-microvolt = <1200000>;
+		regulator-max-microvolt = <1200000>;
+		regulator-always-on;
+	};
+
 	memory@80000000 {
 		device_type = "memory";
 		reg = <0x0 0x80000000 0x1 0x0>;
@@ -50,6 +82,40 @@ &arm_wdt {
 	status = "okay";
 };
 
+&csi {
+	vdd-supply =  <&scmi_vddcore>;
+	vdda18-supply = <&scmi_v1v8>;
+	status = "okay";
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		port@0 {
+			reg = <0>;
+			csi_sink: endpoint {
+				remote-endpoint = <&imx335_ep>;
+				data-lanes = <1 2>;
+				bus-type = <4>;
+			};
+		};
+		port@1 {
+			reg = <1>;
+			csi_source: endpoint {
+				remote-endpoint = <&dcmipp_0>;
+			};
+		};
+	};
+};
+
+&dcmipp {
+	status = "okay";
+	port {
+		dcmipp_0: endpoint {
+			remote-endpoint = <&csi_source>;
+			bus-type = <4>;
+		};
+	};
+};
+
 &ethernet2 {
 	pinctrl-names = "default", "sleep";
 	pinctrl-0 = <&eth2_rgmii_pins_a>;
@@ -81,6 +147,25 @@ &i2c2 {
 	i2c-scl-falling-time-ns = <13>;
 	clock-frequency = <400000>;
 	status = "okay";
+
+	imx335: camera@1a {
+		compatible = "sony,imx335";
+		reg = <0x1a>;
+		clocks = <&clk_ext_camera>;
+		avdd-supply = <&imx335_2v9>;
+		ovdd-supply = <&imx335_1v8>;
+		dvdd-supply = <&imx335_1v2>;
+		reset-gpios = <&gpioi 7 (GPIO_ACTIVE_LOW | GPIO_PUSH_PULL)>;
+
+		port {
+			imx335_ep: endpoint {
+				remote-endpoint = <&csi_sink>;
+				clock-lanes = <0>;
+				data-lanes = <1 2>;
+				link-frequencies = /bits/ 64 <594000000>;
+			};
+		};
+	};
 };
 
 &i2c8 {

-- 
2.25.1