arm64: dts: mediatek: mt8395-radxa-nio-12l: Add Radxa 8 HD panel

The Radxa 8 HD touchscreen can be used with various Radxa board
and is sold appart from the Radxa NIO 12L development kit.

Add a DTS overlay for this panel.

Signed-off-by: Julien Massot <julien.massot@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20250304-radxa-panel-overlay-v2-2-3ee6797d3f86@collabora.com
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

diff --git a/arch/arm64/boot/dts/mediatek/Makefile b/arch/arm64/boot/dts/mediatek/Makefile
index ae1147eca9a915f117487101e2ad4acead97adfe..58484e8300632edbdef24bbda33ccf00db9df937 100644 (file)
--- a/arch/arm64/boot/dts/mediatek/Makefile
+++ b/arch/arm64/boot/dts/mediatek/Makefile
@@ -100,9 +100,11 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += mt8395-genio-1200-evk.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8390-genio-700-evk.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8395-kontron-3-5-sbc-i1200.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8395-radxa-nio-12l.dtb
+dtb-$(CONFIG_ARCH_MEDIATEK) += mt8395-radxa-nio-12l-8-hd-panel.dtbo
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt8516-pumpkin.dtb
 
 # Device tree overlays support
 DTC_FLAGS_mt7986a-bananapi-bpi-r3 := -@
 DTC_FLAGS_mt7986a-bananapi-bpi-r3-mini := -@
 DTC_FLAGS_mt7988a-bananapi-bpi-r4 := -@
+DTC_FLAGS_mt8395-radxa-nio-12l := -@

diff --git a/arch/arm64/boot/dts/mediatek/mt8395-radxa-nio-12l-8-hd-panel.dtso b/arch/arm64/boot/dts/mediatek/mt8395-radxa-nio-12l-8-hd-panel.dtso
new file mode 100644 (file)
index 0000000..0389c9c
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt8395-radxa-nio-12l-8-hd-panel.dtso
@@ -0,0 +1,84 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Radxa Display 8 HD touchscreen module
+ * Copyright (C) 2025 Collabora Ltd.
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+&backlight {
+       status = "okay";
+};
+
+&disp_pwm0 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&pwm0_default_pins>;
+       status = "okay";
+};
+
+&dsi0 {
+       #address-cells = <1>;
+       #size-cells = <0>;
+       status = "okay";
+
+       panel@0 {
+               compatible = "radxa,display-8hd-ad002", "jadard,jd9365da-h3";
+               reg = <0>;
+               backlight = <&backlight>;
+               vdd-supply = <&mt6359_vcn33_2_bt_ldo_reg>;
+               vccio-supply = <&mt6360_ldo2>;
+               reset-gpios = <&pio 108 GPIO_ACTIVE_LOW>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&panel_default_pins>;
+
+               port {
+                       dsi_panel_in: endpoint {
+                               remote-endpoint = <&dsi0_out>;
+                       };
+               };
+       };
+};
+
+&dsi0_out {
+       remote-endpoint = <&dsi_panel_in>;
+};
+
+&i2c4 {
+       #address-cells = <1>;
+       #size-cells = <0>;
+
+       touchscreen@14 {
+               compatible = "goodix,gt911";
+               reg = <0x14>;
+               interrupts-extended = <&pio 132 IRQ_TYPE_EDGE_RISING>;
+               irq-gpios = <&pio 132 GPIO_ACTIVE_HIGH>;
+               reset-gpios = <&pio 133 GPIO_ACTIVE_HIGH>;
+               VDDIO-supply = <&mt6359_vcn33_2_bt_ldo_reg>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&touch_pins>;
+       };
+};
+
+&mipi_tx0 {
+       status = "okay";
+};
+
+&ovl0_in {
+       remote-endpoint = <&vdosys0_ep_main>;
+};
+
+&vdosys0 {
+       port {
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               vdosys0_ep_main: endpoint@0 {
+                       reg = <0>;
+                       remote-endpoint = <&ovl0_in>;
+               };
+       };
+};