verdin-imx8mp: add overlay for supporting ov5640 on mezzanine

Related-to: ELB-4035
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>

2 files changed, 97 insertions, 0 deletions

diff --git a/overlays/Makefile b/overlays/Makefile
index 8bb8cf9..fe1aa7d 100644
--- a/overlays/Makefile
+++ b/overlays/Makefile
@@ -89,6 +89,7 @@ dtb-y += verdin-imx8mm_sn65dsi84_overlay.dtbo
 dtb-y += verdin-imx8mp_lt8912_overlay.dtbo
 dtb-y += verdin-imx8mp_mezzanine-lvds-single-channel_overlay.dtbo
 dtb-y += verdin-imx8mp_mezzanine-lvds-dual-channel_overlay.dtbo
+dtb-y += verdin-imx8mp_mezzanine-ov5640_overlay.dtbo
 dtb-y += verdin-imx8mp_mezzanine-touch-atmel-mxt_overlay.dtbo
 dtb-y += verdin-imx8mp_native-hdmi_overlay.dtbo
 dtb-y += verdin-imx8mp_ov5640_overlay.dtbo
diff --git a/overlays/verdin-imx8mp_mezzanine-ov5640_overlay.dts b/overlays/verdin-imx8mp_mezzanine-ov5640_overlay.dts
new file mode 100644
index 0000000..4a5e7fc
--- /dev/null
+++ b/overlays/verdin-imx8mp_mezzanine-ov5640_overlay.dts
@@ -0,0 +1,96 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright 2021 Toradex
+ */
+
+// Verdin iMX8M Plus Mezzanine orderable at Toradex.
+// CSI Camera Module 5MP OV5640 previously orderable at Toradex.
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/clock/imx8mp-clock.h>
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+	compatible = "toradex,verdin-imx8mp";
+};
+
+&cameradev {
+	status = "okay";
+};
+
+/* Verdin I2C_2_DSI (JP3 2-3, JP4 2-3) */
+&i2c2 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+
+	ov5640_mipi@3c {
+		assigned-clocks = <&clk IMX8MP_CLK_IPP_DO_CLKO2>;
+		assigned-clock-parents = <&clk IMX8MP_CLK_24M>;
+		assigned-clock-rates = <24000000>;
+		AVDD-supply = <&reg_3p3v>;
+		compatible = "ovti,ov5640";
+		clock-names = "xclk";
+		clocks = <&clk IMX8MP_CLK_IPP_DO_CLKO2>;
+		csi_id = <1>;
+		DOVDD-supply = <&reg_3p3v>;
+		DVDD-supply = <&reg_3p3v>;
+		mclk = <24000000>;
+		mclk_source = <0>;
+		mipi_csi;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpio1>, <&pinctrl_gpio2>;
+		/* Verdin GPIO2 (JP6 1-2) */
+		powerdown-gpios = <&gpio1 1 GPIO_ACTIVE_HIGH>;
+		PVDD-supply = <&reg_3p3v>;
+		reg = <0x3c>;
+		/* Verdin GPIO1 (JP5 1-2) */
+		reset-gpios = <&gpio1 0 GPIO_ACTIVE_LOW>;
+		status = "okay";
+
+		port {
+			ov5640_mipi_1_ep: endpoint {
+				clock-lanes = <0>;
+				data-lanes = <1 2>;
+				remote-endpoint = <&mipi_csi1_ep>;
+			};
+		};
+	};
+};
+
+/* make sure Verdin GPIO1 and GPIO2 are NOT muxed by default to avoid any conflict */
+&iomuxc {
+        pinctrl-names = "default";
+        pinctrl-0 = <&pinctrl_gpio3>, <&pinctrl_gpio4>,
+                    <&pinctrl_gpio7>, <&pinctrl_gpio8>,
+                    <&pinctrl_gpio_hog1>, <&pinctrl_gpio_hog2>, <&pinctrl_gpio_hog3>,
+                    <&pinctrl_hdmi_hog>, <&pinctrl_pmic_tpm_ena>;
+};
+
+&isi_1 {
+	status = "okay";
+
+	cap_device {
+		status = "okay";
+	};
+};
+
+&mipi_csi_1 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+
+	port@1 {
+		reg = <1>;
+
+		mipi_csi1_ep: endpoint {
+			csis-hs-settle = <13>;
+			csis-clk-settle = <2>;
+			csis-wclk;
+			data-lanes = <2>;
+			remote-endpoint = <&ov5640_mipi_1_ep>;
+		};
+	};
+};