[PATCH v2] arm64: dts: qcom: qrb2210-arduino-imola: describe DSI / DP bridge

[Dmitry Baryshkov]

Aruino Uno-Q uses Analogix ANX7625 DSI-to-DP bridge to convert DSI
signals to the connected USB-C DisplayPort dongles. Decribe the chip,
USB-C connector and routing of USB and display signals.

Co-developed-by: Martino Facchin <m.facchin@xxxxxxxxxx>
Signed-off-by: Martino Facchin <m.facchin@xxxxxxxxxx>
Tested-by: Loic Poulain <loic.poulain@xxxxxxxxxxxxxxxx>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxxxxxxxx>
---
Note, to function correctly this patch depends on several patch series,
fixing the ANX7625 driver:

- https://lore.kernel.org/r/20251218151307.95491-1-loic.poulain@xxxxxxxxxxxxxxxx/
  (part of 7.0-rc1)

- https://lore.kernel.org/r/20260121-anx7625-typec-v2-0-d14f31256a17@xxxxxxxxxxxxxxxx/
  (part of drm-misc-next, to be landed in 7.1)

- https://lore.kernel.org/r/20260211-anx7625-fix-pd-v1-1-1dd31451b06f@xxxxxxxxxxxxxxxx/
  (recently submitted, hopefully to land in 7.1)
---
Changes in v2:
- Dropped extra comment (Konrad)
- Added empty lines before the subnodes (Konrad)
- Link to v1: https://lore.kernel.org/r/20260211-uno-q-anx7625-v1-1-677bbcf63668@xxxxxxxxxxxxxxxx
---
 arch/arm64/boot/dts/qcom/qrb2210-arduino-imola.dts | 114 +++++++++++++++++++++
 1 file changed, 114 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qrb2210-arduino-imola.dts b/arch/arm64/boot/dts/qcom/qrb2210-arduino-imola.dts
index 197ab6eb1666..0be5f2a3b3f3 100644
--- a/arch/arm64/boot/dts/qcom/qrb2210-arduino-imola.dts
+++ b/arch/arm64/boot/dts/qcom/qrb2210-arduino-imola.dts
@@ -6,6 +6,7 @@
 /dts-v1/;
 
 #include <dt-bindings/leds/common.h>
+#include <dt-bindings/usb/pd.h>
 #include "agatti.dtsi"
 #include "pm4125.dtsi"
 
@@ -109,6 +110,15 @@ multi-led {
 		leds = <&ledr>, <&ledg>, <&ledb>;
 	};
 
+	vreg_anx_30: regulator-anx-30 {
+		compatible = "regulator-fixed";
+		regulator-name = "anx30";
+		regulator-min-microvolt = <3000000>;
+		regulator-max-microvolt = <3000000>;
+		regulator-always-on;
+		regulator-boot-on;
+	};
+
 	/* PM4125 charger out, supplied by VBAT */
 	vph_pwr: regulator-vph-pwr {
 		compatible = "regulator-fixed";
@@ -142,6 +152,86 @@ &i2c1 {
 	clock-frequency = <100000>;
 
 	status = "okay";
+
+	anx7625: encoder@58 {
+		compatible = "analogix,anx7625";
+		reg = <0x58>;
+		interrupts-extended = <&tlmm 81 IRQ_TYPE_EDGE_FALLING>;
+		vdd10-supply = <&pm4125_l11>;
+		vdd18-supply = <&pm4125_l15>;
+		vdd33-supply = <&vreg_anx_30>;
+		analogix,audio-enable;
+		analogix,lane0-swing = /bits/ 8 <0x14 0x54 0x64 0x74>;
+		analogix,lane1-swing = /bits/ 8 <0x14 0x54 0x64 0x74>;
+
+		pinctrl-0 = <&anx7625_int_pin>, <&anx7625_cable_det_pin>;
+
+		connector {
+			compatible = "usb-c-connector";
+			power-role = "sink";
+			data-role = "dual";
+			try-power-role = "sink";
+
+			pd-revision = /bits/ 8 <0x03 0x00 0x00 0x00>;
+			op-sink-microwatt = <15000000>;
+			sink-pdos = <PDO_FIXED(5000, 3000, PDO_FIXED_USB_COMM)
+				     PDO_VAR(5000, 20000, 3000)>;
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@0 {
+					reg = <0>;
+
+					anx_hs_in: endpoint {
+						remote-endpoint = <&usb_dwc3_hs>;
+					};
+				};
+
+				port@1 {
+					reg = <1>;
+
+					anx_ss_in: endpoint {
+						remote-endpoint = <&usb_qmpphy_out>;
+					};
+				};
+			};
+		};
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+
+				anx_dsi0_in: endpoint {
+					remote-endpoint = <&mdss_dsi0_out>;
+					data-lanes = <0 1 2 3>;
+				};
+			};
+		};
+	};
+};
+
+&mdss {
+	status = "okay";
+};
+
+&mdss_dsi0 {
+	vdda-supply = <&pm4125_l5>;
+
+	status = "okay";
+};
+
+&mdss_dsi0_out {
+	remote-endpoint = <&anx_dsi0_in>;
+	data-lanes = <0 1 2 3>;
+};
+
+&mdss_dsi0_phy {
+	status = "okay";
 };
 
 &pm4125_vbus {
@@ -361,6 +451,22 @@ key_vold_n: key-vold-n-state {
 		output-disable;
 	};
 
+	anx7625_cable_det_pin: anx7625-cable-det-pins-state {
+		pins = "gpio46";
+		function = "gpio";
+		drive-strength = <16>;
+		output-disable;
+		bias-pull-up;
+	};
+
+	anx7625_int_pin: anx7625-int-pins-state {
+		pins = "gpio81";
+		function = "gpio";
+		drive-strength = <16>;
+		output-disable;
+		bias-pull-up;
+	};
+
 	key_volp_n: key-volp-n-state {
 		pins = "gpio96";
 		function = "gpio";
@@ -428,6 +534,10 @@ &usb {
 	status = "okay";
 };
 
+&usb_dwc3_hs {
+	remote-endpoint = <&anx_hs_in>;
+};
+
 &usb_hsphy {
 	vdd-supply = <&pm4125_l12>;
 	vdda-pll-supply = <&pm4125_l13>;
@@ -443,6 +553,10 @@ &usb_qmpphy {
 	status = "okay";
 };
 
+&usb_qmpphy_out {
+	remote-endpoint = <&anx_ss_in>;
+};
+
 &wifi {
 	vdd-0.8-cx-mx-supply = <&pm4125_l7>;
 	vdd-1.8-xo-supply = <&pm4125_l13>;

---
base-commit: 9845cf73f7db6094c0d8419d6adb848028f4a921
change-id: 20260211-uno-q-anx7625-26f8fa8360ca

Best regards,
-- 
With best wishes
Dmitry