[PATCH 7/7] arm64: dts: qcom: shikra-iqs-evk: Add Waveshare 8-inch DSI panel overlay

From: vishnu . saini

Date: Wed Oct 21 2026 - 10:27:28 EST


From: Shashank Maurya <shashank.maurya@xxxxxxxxxxxxxxxx>

Add a DT overlay to enable Waveshare 8-inch DSI panel connected to DSI
22pin on the carrier card.
DSI0 from SOC is routed through MUX which can be selected by DIP switch
S1016.5 ON, for enabling this 22-pin JDISP1 DSI0 connector.

Add the JD9365DA-H3 panel, GPIO expander at I2C4 address 0x45 for
panel power, reset and backlight, and the Goodix GT9271 touch
controller.

Disable the default HDMI bridge and connector in favour of the
Waveshare DSI panel.

Signed-off-by: Shashank Maurya <shashank.maurya@xxxxxxxxxxxxxxxx>
Signed-off-by: Vishnu Saini <vishnu.saini@xxxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/Makefile | 2 +
.../qcom/shikra-iqs-evk-waveshare-dsi-8inch.dtso | 77 ++++++++++++++++++++++
2 files changed, 79 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
index 6d64e7ce197e..2d25e3cc81f4 100644
--- a/arch/arm64/boot/dts/qcom/Makefile
+++ b/arch/arm64/boot/dts/qcom/Makefile
@@ -383,12 +383,14 @@ shikra-cqs-evk-hdmi-dtbs := shikra-cqs-evk.dtb shikra-cqm-cqs-evk-hdmi.dtbo
shikra-iqs-evk-dlc-panel-dtbs := shikra-iqs-evk.dtb shikra-iqs-evk-dlc-panel.dtbo
shikra-iqs-evk-lvds-auo,g133han01-dtbs := shikra-iqs-evk.dtb shikra-iqs-evk-lvds-auo,g133han01.dtbo
shikra-iqs-evk-raspberrypi-dsi-7inch-dtbs := shikra-iqs-evk.dtb shikra-iqs-evk-raspberrypi-dsi-7inch.dtbo
+shikra-iqs-evk-waveshare-dsi-8inch-dtbs := shikra-iqs-evk.dtb shikra-iqs-evk-waveshare-dsi-8inch.dtbo

dtb-$(CONFIG_ARCH_QCOM) += shikra-cqm-evk-hdmi.dtb
dtb-$(CONFIG_ARCH_QCOM) += shikra-cqs-evk-hdmi.dtb
dtb-$(CONFIG_ARCH_QCOM) += shikra-iqs-evk-dlc-panel.dtb
dtb-$(CONFIG_ARCH_QCOM) += shikra-iqs-evk-lvds-auo,g133han01.dtb
dtb-$(CONFIG_ARCH_QCOM) += shikra-iqs-evk-raspberrypi-dsi-7inch.dtb
+dtb-$(CONFIG_ARCH_QCOM) += shikra-iqs-evk-waveshare-dsi-8inch.dtb

dtb-$(CONFIG_ARCH_QCOM) += sm4250-oneplus-billie2.dtb
dtb-$(CONFIG_ARCH_QCOM) += sm4450-qrd.dtb
diff --git a/arch/arm64/boot/dts/qcom/shikra-iqs-evk-waveshare-dsi-8inch.dtso b/arch/arm64/boot/dts/qcom/shikra-iqs-evk-waveshare-dsi-8inch.dtso
new file mode 100644
index 000000000000..d0aa115681ff
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/shikra-iqs-evk-waveshare-dsi-8inch.dtso
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+
+&{/} {
+ model = "Qualcomm Technologies, Inc. Shikra IQS EVK Waveshare 8inch DSI Panel";
+
+ panel_avdd: regulator-panel-avdd {
+ compatible = "regulator-fixed";
+ regulator-name = "panel-avdd";
+ gpios = <&wsgpio 0 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
+
+ panel_iovcc: regulator-panel-iovcc {
+ compatible = "regulator-fixed";
+ regulator-name = "panel-iovcc";
+ gpios = <&wsgpio 4 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
+};
+
+&hdmi_bridge {
+ status = "disabled";
+};
+
+&hdmi_connector {
+ status = "disabled";
+};
+
+&i2c4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ wsgpio: gpio@45 {
+ compatible = "waveshare,dsi-touch-gpio";
+ reg = <0x45>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+
+ touchscreen@5d {
+ compatible = "goodix,gt9271";
+ reg = <0x5d>;
+ reset-gpios = <&wsgpio 9 GPIO_ACTIVE_HIGH>;
+ };
+};
+
+&mdss_dsi0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ panel@0 {
+ compatible = "waveshare,8.0-dsi-touch-a", "jadard,jd9365da-h3";
+ reg = <0>;
+ reset-gpios = <&wsgpio 1 GPIO_ACTIVE_LOW>;
+ vccio-supply = <&panel_iovcc>;
+ vdd-supply = <&panel_avdd>;
+ backlight = <&wsgpio>;
+
+ port {
+ panel_in: endpoint {
+ remote-endpoint = <&mdss_dsi0_out>;
+ };
+ };
+ };
+};
+
+&mdss_dsi0_out {
+ remote-endpoint = <&panel_in>;
+};

--
2.34.1