ARM: dts: imx6q-apalis: Add ov5640 mipi csi camera

The Apalis iMX6 modules allow connecting a mipi-csi video input.
Add support for our OV5640 camera module but have it disabled.
This allows to enable it in an overlay per the current system
configuration.

Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm/boot/dts/imx6qdl-apalis.dtsi b/arch/arm/boot/dts/imx6qdl-apalis.dtsi
index b4742ad..bbd838a 100644 (file)
--- a/arch/arm/boot/dts/imx6qdl-apalis.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-apalis.dtsi
@@ -29,6 +29,12 @@
                status = "disabled";
        };
 
+       clk_ov5640_osc: clk-ov5640-osc {
+               compatible = "fixed-clock";
+               #clock-cells = <0>;
+               clock-frequency = <24000000>;
+       };
+
        gpio-keys {
                compatible = "gpio-keys";
                pinctrl-names = "default";
@@ -110,6 +116,26 @@
                regulator-always-on;
        };
 
+       reg_ov5640_1v8_d_o_vdd: regulator-ov5640-1v8-d-o-vdd {
+               compatible = "regulator-fixed";
+               regulator-always-on;
+               regulator-max-microvolt = <1800000>;
+               regulator-min-microvolt = <1800000>;
+               regulator-name = "DOVDD/DVDD_1.8V";
+               /* Note: The CSI module uses on-board 3.3V_SW supply */
+               vin-supply = <&reg_module_3v3>;
+       };
+
+       reg_ov5640_2v8_a_vdd: regulator-ov5640-2v8-a-vdd {
+               compatible = "regulator-fixed";
+               regulator-always-on;
+               regulator-max-microvolt = <2800000>;
+               regulator-min-microvolt = <2800000>;
+               regulator-name = "AVDD/AFVDD_2.8V";
+               /* Note: The CSI module uses on-board 3.3V_SW supply */
+               vin-supply = <&reg_module_3v3>;
+       };
+
        reg_usb_otg_vbus: regulator-usb-otg-vbus {
                compatible = "regulator-fixed";
                pinctrl-names = "default";
@@ -452,7 +478,6 @@
                reset-gpios = <&gpio6 9 GPIO_ACTIVE_LOW>;       /* MXM3_13 */
                status = "disabled";
        };
-
 };
 
 /*
@@ -631,6 +656,30 @@
        scl-gpios = <&gpio3 17 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
        sda-gpios = <&gpio3 18 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
        status = "disabled";
+
+       ov5640_csi_cam: ov5640_mipi@3c {
+               compatible = "ovti,ov5640";
+               AVDD-supply = <&reg_ov5640_2v8_a_vdd>;
+               DOVDD-supply = <&reg_ov5640_1v8_d_o_vdd>;
+               DVDD-supply = <&reg_ov5640_1v8_d_o_vdd>;
+               clock-names = "xclk";
+               clocks = <&clks IMX6QDL_CLK_CKO2>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&pinctrl_cam_mclk>;
+               /* These GPIOs are muxed with the iomuxc node */
+               powerdown-gpios = <&gpio2 5 GPIO_ACTIVE_HIGH>;
+               reg = <0x3c>;
+               reset-gpios = <&gpio2 4 GPIO_ACTIVE_LOW>;
+               status = "disabled";
+
+               port {
+                       ov5640_to_mipi_csi2: endpoint {
+                               clock-lanes = <0>;
+                               data-lanes = <1 2>;
+                               remote-endpoint = <&mipi_csi_from_ov5640>;
+                       };
+               };
+       };
 };
 
 &ipu1_di1_disp1 {
@@ -661,6 +710,22 @@
        };
 };
 
+&mipi_csi {
+       #address-cells = <1>;
+       #size-cells = <0>;
+       status = "disabled";
+
+       port@0 {
+               reg = <0>;
+
+               mipi_csi_from_ov5640: endpoint {
+                       clock-lanes = <0>;
+                       data-lanes = <1 2>;
+                       remote-endpoint = <&ov5640_to_mipi_csi2>;
+               };
+       };
+};
+
 &pwm1 {
        pinctrl-names = "default";
        pinctrl-0 = <&pinctrl_pwm1>;