arm64: dts: imx8mn-evk: Add camera support

Add support for the OV5640 camera.

Tested with the following commands:

media-ctl -l "'ov5640 2-003c':0 -> 'csis-32e30000.mipi-csi':0 [1]"
media-ctl -V "'ov5640 2-003c':0 [fmt:UYVY8_1X16/640x480 field:none]"
media-ctl -V "'crossbar':0 [fmt:UYVY8_1X16/640x480 field:none]"
media-ctl -V "'mxc_isi.0':0 [fmt:UYVY8_1X16/640x480 field:none]"
v4l2-ctl --device /dev/video0 --set-fmt-video=width=640,height=480,pixelformat=YUYV
v4l2-ctl --stream-mmap -d /dev/video0;
gst-launch-1.0 -v v4l2src device=/dev/video0 ! video/x-raw,width=640,height=480 ! waylandsink

Signed-off-by: Fabio Estevam <festevam@denx.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/imx8mn-evk.dtsi b/arch/arm64/boot/dts/freescale/imx8mn-evk.dtsi
index 0643113..0e60995 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mn-evk.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mn-evk.dtsi
@@ -259,6 +259,45 @@
                gpio-controller;
                #gpio-cells = <2>;
        };
+
+       camera@3c {
+               compatible = "ovti,ov5640";
+               reg = <0x3c>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&pinctrl_camera>;
+               clocks = <&clk IMX8MN_CLK_CLKO1>;
+               clock-names = "xclk";
+               assigned-clocks = <&clk IMX8MN_CLK_CLKO1>;
+               assigned-clock-parents = <&clk IMX8MN_CLK_24M>;
+               assigned-clock-rates = <24000000>;
+               powerdown-gpios = <&gpio1 7 GPIO_ACTIVE_HIGH>;
+               reset-gpios = <&gpio1 6 GPIO_ACTIVE_LOW>;
+
+               port {
+                       ov5640_to_mipi_csi2: endpoint {
+                               remote-endpoint = <&imx8mn_mipi_csi_in>;
+                               clock-lanes = <0>;
+                               data-lanes = <1 2>;
+                       };
+               };
+       };
+};
+
+&isi {
+       status = "okay";
+};
+
+&mipi_csi {
+       status = "okay";
+
+       ports {
+               port@0 {
+                       imx8mn_mipi_csi_in: endpoint {
+                               remote-endpoint = <&ov5640_to_mipi_csi2>;
+                               data-lanes = <1 2>;
+                       };
+               };
+       };
 };
 
 &lcdif {
@@ -393,6 +432,14 @@
 };
 
 &iomuxc {
+       pinctrl_camera: cameragrp {
+               fsl,pins = <
+                       MX8MN_IOMUXC_GPIO1_IO06_GPIO1_IO6               0x19
+                       MX8MN_IOMUXC_GPIO1_IO07_GPIO1_IO7               0x19
+                       MX8MN_IOMUXC_GPIO1_IO14_CCMSRCGPCMIX_CLKO1      0x59
+               >;
+       };
+
        pinctrl_fec1: fec1grp {
                fsl,pins = <
                        MX8MN_IOMUXC_ENET_MDC_ENET1_MDC         0x3