verdin-am62: add native lvds overlays

Add overlays for native LVDS being MSP.

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

4 files changed, 214 insertions, 0 deletions

diff --git a/overlays/Makefile b/overlays/Makefile
index ee83118..7a843a3 100644
--- a/overlays/Makefile
+++ b/overlays/Makefile
@@ -50,6 +50,8 @@ dtb-y += colibri-imx7_panel-cap-touch-10inch-lvds_overlay.dtbo
 dtb-y += colibri-imx7_panel-res-touch-7inch_overlay.dtbo
 dtb-y += colibri-imx7_spidev_overlay.dtbo
 dtb-y += colibri-imx7_vga-640x480_overlay.dtbo
+dtb-y += verdin-am62_mezzanine_panel-cap-touch-10inch-lvds_overlay.dtbo
+dtb-y += verdin-am62_mezzanine_panel-lvds-dual-channel-1080p_overlay.dtbo
 dtb-y += verdin-am62_spidev_overlay.dtbo
 dtb-y += verdin-imx8mm_nau8822-btl_overlay.dtbo
 dtb-y += verdin-imx8mm_spidev_overlay.dtbo
diff --git a/overlays/verdin-am62_mezzanine_backlight.dtsi b/overlays/verdin-am62_mezzanine_backlight.dtsi
new file mode 100644
index 0000000..6bfbd34
--- /dev/null
+++ b/overlays/verdin-am62_mezzanine_backlight.dtsi
@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright 2023 Toradex
+ */
+
+// Verdin AM62 Mezzanine Backlight
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pwm/pwm.h>
+
+&{/} {
+	compatible = "toradex,verdin-am62";
+
+	backlight_mezzanine: backlight-mezzanine {
+		compatible = "pwm-backlight";
+		brightness-levels = <0 45 63 88 119 158 203 255>;
+		default-brightness-level = <4>;
+		/* Verdin GPIO_4 (SODIMM 212) */
+		enable-gpios = <&mcu_gpio0 4 GPIO_ACTIVE_HIGH>;
+		/* Verdin PWM_2 (SODIMM 16) */
+		pwms = <&epwm0 1 6666667 PWM_POLARITY_INVERTED>;
+	};
+};
+
+/* Verdin PWM_1, PWM_2 */
+&epwm0 {
+	status = "okay";
+};
diff --git a/overlays/verdin-am62_mezzanine_panel-cap-touch-10inch-lvds_overlay.dts b/overlays/verdin-am62_mezzanine_panel-cap-touch-10inch-lvds_overlay.dts
new file mode 100644
index 0000000..8b1a674
--- /dev/null
+++ b/overlays/verdin-am62_mezzanine_panel-cap-touch-10inch-lvds_overlay.dts
@@ -0,0 +1,89 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright 2023 Toradex
+ */
+
+// Verdin AM62 Mezzanine single-channel LVDS
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/pwm/pwm.h>
+
+#include "verdin-am62_mezzanine_backlight.dtsi"
+
+&{/} {
+	compatible = "toradex,verdin-am62";
+
+	panel-lvds-mez {
+		compatible = "panel-lvds";
+		backlight = <&backlight_mezzanine>;
+		data-mapping = "vesa-24";
+		height-mm = <136>;
+		width-mm = <217>;
+
+		panel-timing {
+			clock-frequency = <68900000 71100000 73400000>;
+			de-active = <1>;
+			hactive = <1280 1280 1280>;
+			hback-porch = <23 60 71>;
+			hfront-porch = <23 60 71>;
+			hsync-active = <0>;
+			hsync-len = <15 40 47>;
+			pixelclk-active = <1>; /* positive edge */
+			vactive = <800 800 800>;
+			vback-porch = <5 7 10>;
+			vfront-porch = <5 7 10>;
+			vsync-active = <0>;
+			vsync-len = <6 9 12>;
+		};
+
+		port {
+			panel_lvds_in: endpoint {
+				remote-endpoint = <&oldi_out0>;
+			};
+		};
+	};
+};
+
+&dss {
+	status = "okay";
+};
+
+&dss_ports {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	/* VP1: LVDS Output (OLDI TX 0) */
+	port@0 {
+		reg = <0>;
+
+		oldi_out0: endpoint {
+			remote-endpoint = <&panel_lvds_in>;
+		};
+	};
+};
+
+/* Verdin I2C_2_DSI */
+&main_i2c2 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+
+	touch-mezzanine@4a {
+		compatible = "atmel,maxtouch";
+		reg = <0x4a>;
+		/*
+		 * Already muxed as GPIOs in k3-am625-verdin-dev.dtsi
+		 * pinctrl-names = "default";
+		 * pinctrl-0 = <&pinctrl_gpio_2 &pinctrl_gpio_3>;
+		 */
+		/* Verdin GPIO_3 (SODIMM 210) */
+		interrupt-parent = <&mcu_gpio0>;
+		interrupts = <3 IRQ_TYPE_EDGE_FALLING>;
+		/* Verdin GPIO_2 (SODIMM 208) */
+		reset-gpios = <&mcu_gpio0 2 GPIO_ACTIVE_LOW>;
+	};
+};
diff --git a/overlays/verdin-am62_mezzanine_panel-lvds-dual-channel-1080p_overlay.dts b/overlays/verdin-am62_mezzanine_panel-lvds-dual-channel-1080p_overlay.dts
new file mode 100644
index 0000000..178b2c2
--- /dev/null
+++ b/overlays/verdin-am62_mezzanine_panel-lvds-dual-channel-1080p_overlay.dts
@@ -0,0 +1,95 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright 2023 Toradex
+ */
+
+// Verdin AM62 Mezzanine with LG LP156WF1 dual-channel LVDS Panel
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pwm/pwm.h>
+
+#include "verdin-am62_mezzanine_backlight.dtsi"
+
+&{/} {
+	compatible = "toradex,verdin-am62";
+
+	panel-lvds-mez {
+		compatible = "panel-lvds";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		backlight = <&backlight_mezzanine>;
+		data-mapping = "jeida-24";
+		height-mm = <194>;
+		width-mm = <345>;
+
+		panel-timing {
+			clock-frequency = <138500000>;
+			hactive = <1920>;
+			hback-porch = <40>;
+			hfront-porch = <24>;
+			hsync-len = <16>;
+			pixelclk-active = <0>;
+			vactive = <1080>;
+			vback-porch = <23>;
+			vfront-porch = <3>;
+			vsync-len = <5>;
+		};
+
+		/*
+		* Note that the OLDI TX 0 transmits the odd set of pixels
+		* while the OLDI TX 1 transmits the even set. This is a
+		* fixed configuration in the IP integration and is not
+		* changeable. The properties, "dual-lvds-odd-pixels" and
+		* "dual-lvds-even-pixels" have been used to merely
+		* identify if a Dual Link configuration is required.
+		* Swapping them will not make any difference.
+		*/
+		port@0 {
+			reg = <0>;
+			dual-lvds-odd-pixels;
+
+			panel_lvds_in0: endpoint {
+				remote-endpoint = <&oldi_out0>;
+			};
+		};
+
+		port@1 {
+			reg = <1>;
+			dual-lvds-even-pixels;
+
+			panel_lvds_in1: endpoint {
+				remote-endpoint = <&oldi_out1>;
+			};
+		};
+	};
+};
+
+&dss {
+	status = "okay";
+};
+
+&dss_ports {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	/* VP1: LVDS Output (OLDI TX 0) */
+	port@0 {
+		reg = <0>;
+
+		oldi_out0: endpoint {
+			remote-endpoint = <&panel_lvds_in0>;
+		};
+	};
+
+	/* VP1: LVDS Output (OLDI TX 1) */
+	port@2 {
+		reg = <2>;
+
+		oldi_out1: endpoint {
+			remote-endpoint = <&panel_lvds_in1>;
+		};
+	};
+};