arm64: dts: renesas: sparrow-hawk: Add overlay for WaveShare Display 13.3"

Add a DT overlay to bind the WaveShare 13.3inch 1920x1080 DSI Capacitive
Touch Display on the Retronix R-Car V4H Sparrow Hawk board.

Current device link is at https://www.waveshare.com/13.3inch-dsi-lcd.htm

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20260117005028.126361-2-marek.vasut+renesas@mailbox.org
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

diff --git a/arch/arm64/boot/dts/renesas/Makefile b/arch/arm64/boot/dts/renesas/Makefile
index d4dfb7fd973bf9f75e3188471fe1791ad5649bad..bca532eb67b44cbc223076576baf239c70f80d3f 100644 (file)
--- a/arch/arm64/boot/dts/renesas/Makefile
+++ b/arch/arm64/boot/dts/renesas/Makefile
@@ -120,6 +120,9 @@ dtb-$(CONFIG_ARCH_R8A779G0) += r8a779g3-sparrow-hawk-rpi-display-2-5in.dtb
 dtb-$(CONFIG_ARCH_R8A779G0) += r8a779g3-sparrow-hawk-rpi-display-2-7in.dtbo
 r8a779g3-sparrow-hawk-rpi-display-2-7in-dtbs := r8a779g3-sparrow-hawk.dtb r8a779g3-sparrow-hawk-rpi-display-2-7in.dtbo
 dtb-$(CONFIG_ARCH_R8A779G0) += r8a779g3-sparrow-hawk-rpi-display-2-7in.dtb
+dtb-$(CONFIG_ARCH_R8A779G0) += r8a779g3-sparrow-hawk-ws-display-13in.dtbo
+r8a779g3-sparrow-hawk-ws-display-13in-dtbs := r8a779g3-sparrow-hawk.dtb r8a779g3-sparrow-hawk-ws-display-13in.dtbo
+dtb-$(CONFIG_ARCH_R8A779G0) += r8a779g3-sparrow-hawk-ws-display-13in.dtb
 
 dtb-$(CONFIG_ARCH_R8A779G0) += r8a779g3-white-hawk-single.dtb
 r8a779g3-white-hawk-single-ard-audio-da7212-dtbs := r8a779g3-white-hawk-single.dtb white-hawk-ard-audio-da7212.dtbo

diff --git a/arch/arm64/boot/dts/renesas/r8a779g3-sparrow-hawk-ws-display-13in.dtso b/arch/arm64/boot/dts/renesas/r8a779g3-sparrow-hawk-ws-display-13in.dtso
new file mode 100644 (file)
index 0000000..26434d4
--- /dev/null
+++ b/arch/arm64/boot/dts/renesas/r8a779g3-sparrow-hawk-ws-display-13in.dtso
@@ -0,0 +1,88 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+/*
+ * Device Tree Overlay for the Waveshare 13.3 MIPI DSI panel connected
+ * to J4:DSI on R-Car V4H ES3.0 Sparrow Hawk board
+ *
+ * Copyright (C) 2025-2026 Marek Vasut <marek.vasut+renesas@mailbox.org>
+ */
+
+/dts-v1/;
+/plugin/;
+
+&{/} {
+       panel {
+               compatible = "waveshare,13.3inch-panel";
+               power-supply = <&reg_5p0v>;
+
+               port {
+                       panel_in: endpoint {
+                               remote-endpoint = <&bridge_out>;
+                       };
+               };
+       };
+
+       reg_5p0v: regulator-5p0v {
+               compatible = "regulator-fixed";
+               regulator-name = "fixed-5.0V";
+               regulator-min-microvolt = <5000000>;
+               regulator-max-microvolt = <5000000>;
+               regulator-always-on;
+               regulator-boot-on;
+       };
+};
+
+&i2c0_mux3 {
+       #address-cells = <1>;
+       #size-cells = <0>;
+
+       touchscreen@41 {
+               compatible = "ilitek,ili251x";
+               reg = <0x41>;
+       };
+
+       bridge@45 {
+               compatible = "waveshare,dsi2dpi";
+               reg = <0x45>;
+               power-supply = <&reg_5p0v>;
+
+               ports {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       port@0 {
+                               reg = <0>;
+
+                               bridge_in: endpoint {
+                                       data-lanes = <1 2 3 4>;
+                                       remote-endpoint = <&dsi0_out>;
+                               };
+                       };
+
+                       port@1 {
+                               reg = <1>;
+
+                               bridge_out: endpoint {
+                                       remote-endpoint = <&panel_in>;
+                               };
+                       };
+               };
+       };
+};
+
+&dsi0 {
+       status = "okay";
+
+       ports {
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               port@1 {
+                       reg = <1>;
+
+                       dsi0_out: endpoint {
+                               remote-endpoint = <&bridge_in>;
+                               data-lanes = <1 2 3 4>;
+                       };
+               };
+       };
+};