ARM: dts: imx7d-pico-pi: add OV5645 camera support

Add OV5645 camera device node and enable relevant components in the
video capture data path, so output stream can be captured, and the
camera itself can be controlled over I2C bus.

This is roughly based on descriptions found in downstream kernel tree [1],
adapted to match upstream bindings.

Link: https://github.com/technexion-android/kernel_imx/blob/ce8fd74abf518dac0a09e8dcb37f3496f6375124/arch/arm/boot/dts/imx7d-pico.dtsi#L874
Signed-off-by: Lech Perczak <lech.perczak@gmail.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>

diff --git a/arch/arm/boot/dts/nxp/imx/imx7d-pico-pi.dts b/arch/arm/boot/dts/nxp/imx/imx7d-pico-pi.dts
index 673bbe49de52500a9218fb06c4212a5a4238d677..7a0e4dc5450e397c2331a88fc2613a2c45a784f1 100644 (file)
--- a/arch/arm/boot/dts/nxp/imx/imx7d-pico-pi.dts
+++ b/arch/arm/boot/dts/nxp/imx/imx7d-pico-pi.dts
@@ -19,6 +19,13 @@
                };
        };
 
+       reg_1p5v: regulator-1p5v {
+               compatible = "regulator-fixed";
+               regulator-name = "1P5V";
+               regulator-min-microvolt = <1500000>;
+               regulator-max-microvolt = <1500000>;
+       };
+
        sound {
                compatible = "simple-audio-card";
                simple-audio-card,name = "imx7-sgtl5000";
@@ -59,6 +66,33 @@
                touchscreen-size-x = <800>;
                touchscreen-size-y = <480>;
        };
+
+       camera@3c {
+               compatible = "ovti,ov5645";
+               reg = <0x3c>;
+
+               pinctrl-names = "default";
+               pinctrl-0 = <&pinctrl_camera>;
+
+               clocks = <&clks IMX7D_CLKO1_ROOT_DIV>;
+               assigned-clocks = <&clks IMX7D_CLKO1_ROOT_DIV>;
+               assigned-clock-rates = <24000000>;
+
+               enable-gpios = <&gpio1 4 GPIO_ACTIVE_HIGH>;
+               reset-gpios = <&gpio1 5 GPIO_ACTIVE_LOW>;
+
+               vdda-supply = <&reg_2p5v>;
+               vdddo-supply = <&reg_vref_1v8>;
+               vddd-supply = <&reg_1p5v>;
+
+               port {
+                       ov5645_to_mipi_csi2: endpoint {
+                               remote-endpoint = <&mipi_csi2_in>;
+                               clock-lanes = <0>;
+                               data-lanes = <1 2>;
+                       };
+               };
+       };
 };
 
 &usdhc1 {
@@ -93,5 +127,37 @@
                        MX7D_PAD_EPDC_DATA13__GPIO2_IO13        0x14
                >;
        };
+};
+
+&iomuxc_lpsr {
+       pinctrl_camera: cameragrp {
+               fsl,pins = <
+                       MX7D_PAD_LPSR_GPIO1_IO04__GPIO1_IO4     0x15
+                       MX7D_PAD_LPSR_GPIO1_IO05__GPIO1_IO5     0x15
+                       MX7D_PAD_LPSR_GPIO1_IO02__CCM_CLKO1     0x7d
+               >;
+       };
+};
+
+&csi {
+       status = "okay";
+};
+
+&mipi_csi {
+       status = "okay";
+
+       ports {
+               port@0 {
+                       reg = <0>;
+
+                       mipi_csi2_in: endpoint {
+                               remote-endpoint = <&ov5645_to_mipi_csi2>;
+                               data-lanes = <1 2>;
+                       };
+               };
+       };
+};
 
+&video_mux {
+       status = "okay";
 };