overlays: verdin-imx8mm_sn65dsi84_overlay: verdin dsi to lvds adapter

Add device tree overlay for Verdin DSI to LVDS Adapter orderable at
Toradex.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>

1 files changed, 124 insertions, 0 deletions

diff --git a/overlays/verdin-imx8mm_sn65dsi84_overlay.dts b/overlays/verdin-imx8mm_sn65dsi84_overlay.dts
new file mode 100644
index 0000000..4c0d618
--- /dev/null
+++ b/overlays/verdin-imx8mm_sn65dsi84_overlay.dts
@@ -0,0 +1,124 @@
+// Verdin DSI to LVDS Adapter orderable at Toradex.
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include "dt-bindings/pwm/pwm.h"
+
+/ {
+	compatible = "toradex,verdin-imx8mm";
+
+	backlight {
+		compatible = "pwm-backlight";
+		brightness-levels = <0 45 63 88 119 158 203 255>;
+		default-brightness-level = <4>;
+		enable-gpios = <&gpio3 3 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_dsi_bkl_en>;
+		power-supply = <&reg_3p3v>;
+		pwms = <&pwm1 0 6666667 PWM_POLARITY_INVERTED>;
+	};
+};
+
+&{/soc@0/bus@32c00000/display-subsystem} {
+	status = "okay";
+};
+
+/* Verdin PWM_3_DSI */
+&pwm1 {
+	#pwm-cells = <3>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pwm_1>;
+	status = "okay";
+};
+
+/* Verdin I2C_2_DSI */
+&i2c2 {
+	clock-frequency = <10000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c2>;
+	status = "okay";
+};
+
+/* Verdin I2C_1 */
+&i2c4 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+
+	bridge@2c {
+		compatible = "ti,sn65dsi83";
+		enable-gpios = <&gpio3 4 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpio1>;
+		reg = <0x2c>;
+		ti,dsi-lanes = <4>;
+		ti,height-mm = <136>;
+		ti,lvds-bpp = <24>;
+		ti,lvds-format = <2>;
+		ti,width-mm = <217>;
+
+		display-timings {
+			native-mode = <&lvds_timing0>;
+
+			lvds_timing0: lt170410_2whc {
+				/*
+				 * Take the minimum pixelclock as 71.1 MHz is
+				 * not working on NXP i.MX8M Mini
+				 */
+				clock-frequency = <68900000>;
+				hactive = <1280 1280 1280>;
+				hfront-porch = <23 60 71>;
+				hback-porch = <23 60 71>;
+				hsync-len = <15 40 47>;
+				vactive = <800 800 800>;
+				vfront-porch = <5 7 10>;
+				vback-porch = <5 7 10>;
+				vsync-len = <6 9 12>;
+				de-active = <1>;
+				pixelclk-active = <0>;
+			};
+		};
+
+		port {
+			dsi85_in: endpoint {
+				remote-endpoint = <&mipi_dsi_bridge1_out>;
+			};
+		};
+	};
+
+	touch@4a {
+		compatible = "atmel,maxtouch";
+		interrupt-parent = <&gpio3>;
+		interrupts = <15 IRQ_TYPE_EDGE_FALLING>; /* SODIMM 17 */
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpio_hpd>, <&pinctrl_gpio2>;
+		reg = <0x4a>;
+		reset-gpios = <&gpio5 5 GPIO_ACTIVE_HIGH>; /* SODIMM 208 */
+	};
+};
+
+&lcdif {
+	status = "okay";
+};
+
+&mipi_dsi {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+
+	port@1 {
+		reg = <1>;
+
+		mipi_dsi_bridge1_out: endpoint {
+			remote-endpoint = <&dsi85_in>;
+			attach-bridge;
+		};
+	};
+};
+
+&gpu {
+	status = "okay";
+};