arm64: dts: qcom: sm8550-hdk: add support for the Display Card overlay

The SM8550-HDK board may be connected to a Display Card external PCB,
which is identical to the already supported SM8650-HDK Display Card,
it provides a VTDR6130 display with Goodix Berlin Touch controller, see
also commit bc90f56a1699 ("arm64: dts: sm8650-hdk: add support for the
Display Card overlay") for additional details.

Two overlays are added to support SM8550-HDK plus Display Card and
SM8550-HDK plus Display Card plus Rear Camera Card setups.

Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260311001238.4191034-1-vladimir.zapolskiy@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
index c2b0f273439515e7134df909e26067bea060929e..91b7236a2190584d852f645cf6fefc4cc72ae432 100644 (file)
--- a/arch/arm64/boot/dts/qcom/Makefile
+++ b/arch/arm64/boot/dts/qcom/Makefile
@@ -361,8 +361,12 @@ dtb-$(CONFIG_ARCH_QCOM)    += sm8450-samsung-r0q.dtb
 dtb-$(CONFIG_ARCH_QCOM)        += sm8450-sony-xperia-nagara-pdx223.dtb
 dtb-$(CONFIG_ARCH_QCOM)        += sm8450-sony-xperia-nagara-pdx224.dtb
 
+sm8550-hdk-display-card-dtbs   := sm8550-hdk.dtb sm8550-hdk-display-card.dtbo
+sm8550-hdk-display-card-rear-camera-card-dtbs  := sm8550-hdk.dtb sm8550-hdk-display-card.dtbo sm8550-hdk-rear-camera-card.dtbo
 sm8550-hdk-rear-camera-card-dtbs       := sm8550-hdk.dtb sm8550-hdk-rear-camera-card.dtbo
 
+dtb-$(CONFIG_ARCH_QCOM)        += sm8550-hdk-display-card-rear-camera-card.dtb
+dtb-$(CONFIG_ARCH_QCOM)        += sm8550-hdk-display-card.dtb
 dtb-$(CONFIG_ARCH_QCOM)        += sm8550-hdk-rear-camera-card.dtb
 dtb-$(CONFIG_ARCH_QCOM)        += sm8550-hdk.dtb
 dtb-$(CONFIG_ARCH_QCOM)        += sm8550-mtp.dtb

diff --git a/arch/arm64/boot/dts/qcom/sm8550-hdk-display-card.dtso b/arch/arm64/boot/dts/qcom/sm8550-hdk-display-card.dtso
new file mode 100644 (file)
index 0000000..7b54b08
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/sm8550-hdk-display-card.dtso
@@ -0,0 +1,132 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) 2024-2026, Linaro Limited
+ */
+
+/*
+ * Display Card kit overlay
+ * This requires S5702 Switch 7 to be turned to OFF to route DSI0 to the display panel
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/dts-v1/;
+/plugin/;
+
+/* Disable HDMI bridge related nodes (mutually exclusive with the display card) */
+
+&i2c0 {
+       status = "disabled";
+};
+
+&lt9611_1v2 {
+       status = "disabled";
+};
+
+&lt9611_3v3 {
+       status = "disabled";
+};
+
+&vreg_bob_3v3 {
+       status = "disabled";
+};
+
+&lt9611_codec {
+       status = "disabled";
+};
+
+&mdss_dsi0 {
+       #address-cells = <1>;
+       #size-cells = <0>;
+
+       panel@0 {
+               compatible = "visionox,vtdr6130";
+               reg = <0>;
+
+               reset-gpios = <&tlmm 133 GPIO_ACTIVE_LOW>;
+
+               vddio-supply = <&vreg_l12b_1p8>;
+               vci-supply = <&vreg_l13b_3p0>;
+               vdd-supply = <&vreg_l11b_1p2>;
+
+               pinctrl-0 = <&disp0_reset_n_active>, <&mdp_vsync>;
+               pinctrl-1 = <&disp0_reset_n_suspend>, <&mdp_vsync>;
+               pinctrl-names = "default", "sleep";
+
+               port {
+                       panel0_in: endpoint {
+                               remote-endpoint = <&mdss_dsi0_out>;
+                       };
+               };
+       };
+};
+
+&mdss_dsi0_out {
+       remote-endpoint = <&panel0_in>;
+};
+
+&spi4 {
+       #address-cells = <1>;
+       #size-cells = <0>;
+
+       status = "okay";
+
+       touchscreen@0 {
+               compatible = "goodix,gt9916";
+               reg = <0>;
+
+               interrupt-parent = <&tlmm>;
+               interrupts = <25 IRQ_TYPE_LEVEL_LOW>;
+
+               reset-gpios = <&tlmm 24 GPIO_ACTIVE_LOW>;
+
+               avdd-supply = <&vreg_l14b_3p2>;
+
+               spi-max-frequency = <1000000>;
+
+               touchscreen-size-x = <1080>;
+               touchscreen-size-y = <2400>;
+
+               pinctrl-0 = <&ts_irq>, <&ts_reset>;
+               pinctrl-names = "default";
+       };
+};
+
+&tlmm {
+       disp0_reset_n_active: disp0-reset-n-active-state {
+               pins = "gpio133";
+               function = "gpio";
+               drive-strength = <8>;
+               bias-disable;
+       };
+
+       disp0_reset_n_suspend: disp0-reset-n-suspend-state {
+               pins = "gpio133";
+               function = "gpio";
+               drive-strength = <2>;
+               bias-pull-down;
+       };
+
+       mdp_vsync: mdp-vsync-state {
+               pins = "gpio86";
+               function = "mdp_vsync";
+               drive-strength = <2>;
+               bias-pull-down;
+       };
+
+       ts_irq: ts-irq-state {
+               pins = "gpio25";
+               function = "gpio";
+               drive-strength = <8>;
+               bias-pull-up;
+               output-disable;
+       };
+
+       ts_reset: ts-reset-state {
+               pins = "gpio24";
+               function = "gpio";
+               drive-strength = <8>;
+               bias-pull-up;
+       };
+};