[PATCH v3 0/4] arm64: dts: qcom: sm8750: Enable display

[PATCH v3 0/4] arm64: dts: qcom: sm8750: Enable display

[Krzysztof Kozlowski]

Changes in v3:
- Rebase, add Rb tags
- Patch #3: Add link-frequencies as Konrad Suggested
- Link to v2: https://patch.msgid.link/20251112-sm8750-display-dts-v2-0-d1567c583821@linaro.org

Changes in v2:
- Add Rb tags
- Re-order nodes/sort by unit address
- Add low_svs_d1 opps for DSI and DPU
- Add DP Pixel1 clock (they were added to other targets as well, also
  Abel pointed it out)
- Some context changes due to dependency changes/merging
- Link to v1: https://lore.kernel.org/r/20250424-sm8750-display-dts-v1-0-6fb22ca95f38@linaro.org

All dependencies, including bindings, were merged, so this can be applied.

Best regards,
Krzysztof

---
Krzysztof Kozlowski (4):
      arm64: dts: qcom: sm8750: Add display (MDSS) with Display CC
      arm64: dts: qcom: sm8750-mtp: Enable display
      arm64: dts: qcom: sm8750-mtp: Enable USB headset and Type-C altmode
      arm64: dts: qcom: sm8750-mtp: Enable DisplayPort over USB

 arch/arm64/boot/dts/qcom/sm8750-mtp.dts | 129 ++++++++++
 arch/arm64/boot/dts/qcom/sm8750.dtsi    | 439 ++++++++++++++++++++++++++++++++
 2 files changed, 568 insertions(+)
---
base-commit: 2a4e7901cb5b2a7dd277e93a5b8b10557260fd62
change-id: 20250424-sm8750-display-dts-447473a33fff

Best regards,
-- 
Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>

[PATCH v3 1/4] arm64: dts: qcom: sm8750: Add display (MDSS) with Display CC

[Krzysztof Kozlowski]

Add device nodes for entire display: MDSS, DPU, DSI, DSI PHYs,
DisplayPort and Display Clock Controller.

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/sm8750.dtsi | 437 +++++++++++++++++++++++++++++++++++
 1 file changed, 437 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sm8750.dtsi b/arch/arm64/boot/dts/qcom/sm8750.dtsi
index 3f0b57f428bb..11194b34e6dc 100644
--- a/arch/arm64/boot/dts/qcom/sm8750.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8750.dtsi
@@ -3,7 +3,9 @@
  * Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved.
  */
 
+#include <dt-bindings/clock/qcom,dsi-phy-28nm.h>
 #include <dt-bindings/clock/qcom,rpmh.h>
+#include <dt-bindings/clock/qcom,sm8750-dispcc.h>
 #include <dt-bindings/clock/qcom,sm8750-gcc.h>
 #include <dt-bindings/clock/qcom,sm8750-tcsr.h>
 #include <dt-bindings/dma/qcom-gpi.h>
@@ -2740,6 +2742,441 @@ usb_dwc3_ss: endpoint {
 			};
 		};
 
+		mdss: display-subsystem@ae00000 {
+			compatible = "qcom,sm8750-mdss";
+			reg = <0x0 0x0ae00000 0x0 0x1000>;
+			reg-names = "mdss";
+
+			interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
+
+			clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
+				 <&gcc GCC_DISP_HF_AXI_CLK>,
+				 <&dispcc DISP_CC_MDSS_MDP_CLK>;
+
+			resets = <&dispcc DISP_CC_MDSS_CORE_BCR>;
+
+			interconnects = <&mmss_noc MASTER_MDP QCOM_ICC_TAG_ALWAYS
+					 &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>,
+					<&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
+					 &config_noc SLAVE_DISPLAY_CFG QCOM_ICC_TAG_ACTIVE_ONLY>;
+			interconnect-names = "mdp0-mem",
+					     "cpu-cfg";
+
+			power-domains = <&dispcc MDSS_GDSC>;
+
+			iommus = <&apps_smmu 0x800 0x2>;
+
+			interrupt-controller;
+			#interrupt-cells = <1>;
+
+			#address-cells = <2>;
+			#size-cells = <2>;
+			ranges;
+
+			status = "disabled";
+
+			mdss_mdp: display-controller@ae01000 {
+				compatible = "qcom,sm8750-dpu";
+				reg = <0 0x0ae01000 0 0x93000>,
+				      <0 0x0aeb0000 0 0x2008>;
+				reg-names = "mdp",
+					    "vbif";
+
+				interrupts-extended = <&mdss 0>;
+
+				clocks = <&gcc GCC_DISP_HF_AXI_CLK>,
+					 <&dispcc DISP_CC_MDSS_AHB_CLK>,
+					 <&dispcc DISP_CC_MDSS_MDP_LUT_CLK>,
+					 <&dispcc DISP_CC_MDSS_MDP_CLK>,
+					 <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
+				clock-names = "nrt_bus",
+					      "iface",
+					      "lut",
+					      "core",
+					      "vsync";
+
+				assigned-clocks = <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
+				assigned-clock-rates = <19200000>;
+
+				operating-points-v2 = <&mdp_opp_table>;
+
+				power-domains = <&rpmhpd RPMHPD_MMCX>;
+
+				ports {
+					#address-cells = <1>;
+					#size-cells = <0>;
+
+					port@0 {
+						reg = <0>;
+
+						dpu_intf1_out: endpoint {
+							remote-endpoint = <&mdss_dsi0_in>;
+						};
+					};
+
+					port@1 {
+						reg = <1>;
+
+						dpu_intf2_out: endpoint {
+							remote-endpoint = <&mdss_dsi1_in>;
+						};
+					};
+
+					port@2 {
+						reg = <2>;
+
+						dpu_intf0_out: endpoint {
+							remote-endpoint = <&mdss_dp0_in>;
+						};
+					};
+				};
+
+				mdp_opp_table: opp-table {
+					compatible = "operating-points-v2";
+
+					opp-156000000 {
+						opp-hz = /bits/ 64 <156000000>;
+						required-opps = <&rpmhpd_opp_low_svs_d1>;
+					};
+
+					opp-207000000 {
+						opp-hz = /bits/ 64 <207000000>;
+						required-opps = <&rpmhpd_opp_low_svs>;
+					};
+
+					opp-337000000 {
+						opp-hz = /bits/ 64 <337000000>;
+						required-opps = <&rpmhpd_opp_svs>;
+					};
+
+					opp-417000000 {
+						opp-hz = /bits/ 64 <417000000>;
+						required-opps = <&rpmhpd_opp_svs_l1>;
+					};
+
+					opp-532000000 {
+						opp-hz = /bits/ 64 <532000000>;
+						required-opps = <&rpmhpd_opp_nom>;
+					};
+
+					opp-575000000 {
+						opp-hz = /bits/ 64 <575000000>;
+						required-opps = <&rpmhpd_opp_nom_l1>;
+					};
+				};
+			};
+
+			mdss_dsi0: dsi@ae94000 {
+				compatible = "qcom,sm8750-dsi-ctrl", "qcom,mdss-dsi-ctrl";
+				reg = <0x0 0x0ae94000 0x0 0x400>;
+				reg-names = "dsi_ctrl";
+
+				interrupts-extended = <&mdss 4>;
+
+				clocks = <&dispcc DISP_CC_MDSS_BYTE0_CLK>,
+					 <&dispcc DISP_CC_MDSS_BYTE0_INTF_CLK>,
+					 <&dispcc DISP_CC_MDSS_PCLK0_CLK>,
+					 <&dispcc DISP_CC_MDSS_ESC0_CLK>,
+					 <&dispcc DISP_CC_MDSS_AHB_CLK>,
+					 <&gcc GCC_DISP_HF_AXI_CLK>,
+					 <&mdss_dsi0_phy DSI_PIXEL_PLL_CLK>,
+					 <&mdss_dsi0_phy DSI_BYTE_PLL_CLK>,
+					 <&dispcc DISP_CC_ESYNC0_CLK>,
+					 <&dispcc DISP_CC_OSC_CLK>,
+					 <&dispcc DISP_CC_MDSS_BYTE0_CLK_SRC>,
+					 <&dispcc DISP_CC_MDSS_PCLK0_CLK_SRC>;
+				clock-names = "byte",
+					      "byte_intf",
+					      "pixel",
+					      "core",
+					      "iface",
+					      "bus",
+					      "dsi_pll_pixel",
+					      "dsi_pll_byte",
+					      "esync",
+					      "osc",
+					      "byte_src",
+					      "pixel_src";
+
+				operating-points-v2 = <&mdss_dsi_opp_table>;
+
+				power-domains = <&rpmhpd RPMHPD_MMCX>;
+
+				phys = <&mdss_dsi0_phy>;
+				phy-names = "dsi";
+
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				status = "disabled";
+
+				ports {
+					#address-cells = <1>;
+					#size-cells = <0>;
+
+					port@0 {
+						reg = <0>;
+
+						mdss_dsi0_in: endpoint {
+							remote-endpoint = <&dpu_intf1_out>;
+						};
+					};
+
+					port@1 {
+						reg = <1>;
+
+						mdss_dsi0_out: endpoint {
+						};
+					};
+				};
+
+				mdss_dsi_opp_table: opp-table {
+					compatible = "operating-points-v2";
+
+					opp-140630000 {
+						opp-hz = /bits/ 64 <140630000>;
+						required-opps = <&rpmhpd_opp_low_svs_d1>;
+					};
+
+					opp-187500000 {
+						opp-hz = /bits/ 64 <187500000>;
+						required-opps = <&rpmhpd_opp_low_svs>;
+					};
+
+					opp-300000000 {
+						opp-hz = /bits/ 64 <300000000>;
+						required-opps = <&rpmhpd_opp_svs>;
+					};
+
+					opp-358000000 {
+						opp-hz = /bits/ 64 <358000000>;
+						required-opps = <&rpmhpd_opp_svs_l1>;
+					};
+				};
+			};
+
+			mdss_dsi0_phy: phy@ae95000 {
+				compatible = "qcom,sm8750-dsi-phy-3nm";
+				reg = <0x0 0x0ae95000 0x0 0x200>,
+				      <0x0 0x0ae95200 0x0 0x280>,
+				      <0x0 0x0ae95500 0x0 0x400>;
+				reg-names = "dsi_phy",
+					    "dsi_phy_lane",
+					    "dsi_pll";
+
+				clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
+					 <&bi_tcxo_div2>;
+				clock-names = "iface",
+					      "ref";
+
+				#clock-cells = <1>;
+				#phy-cells = <0>;
+
+				status = "disabled";
+			};
+
+			mdss_dsi1: dsi@ae96000 {
+				compatible = "qcom,sm8750-dsi-ctrl", "qcom,mdss-dsi-ctrl";
+				reg = <0x0 0x0ae96000 0x0 0x400>;
+				reg-names = "dsi_ctrl";
+
+				interrupts-extended = <&mdss 5>;
+
+				clocks = <&dispcc DISP_CC_MDSS_BYTE1_CLK>,
+					 <&dispcc DISP_CC_MDSS_BYTE1_INTF_CLK>,
+					 <&dispcc DISP_CC_MDSS_PCLK1_CLK>,
+					 <&dispcc DISP_CC_MDSS_ESC1_CLK>,
+					 <&dispcc DISP_CC_MDSS_AHB_CLK>,
+					 <&gcc GCC_DISP_HF_AXI_CLK>,
+					 <&mdss_dsi1_phy DSI_PIXEL_PLL_CLK>,
+					 <&mdss_dsi1_phy DSI_BYTE_PLL_CLK>,
+					 <&dispcc DISP_CC_ESYNC1_CLK>,
+					 <&dispcc DISP_CC_OSC_CLK>,
+					 <&dispcc DISP_CC_MDSS_BYTE1_CLK_SRC>,
+					 <&dispcc DISP_CC_MDSS_PCLK1_CLK_SRC>;
+				clock-names = "byte",
+					      "byte_intf",
+					      "pixel",
+					      "core",
+					      "iface",
+					      "bus",
+					      "dsi_pll_pixel",
+					      "dsi_pll_byte",
+					      "esync",
+					      "osc",
+					      "byte_src",
+					      "pixel_src";
+
+				operating-points-v2 = <&mdss_dsi_opp_table>;
+
+				power-domains = <&rpmhpd RPMHPD_MMCX>;
+
+				phys = <&mdss_dsi1_phy>;
+				phy-names = "dsi";
+
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				status = "disabled";
+
+				ports {
+					#address-cells = <1>;
+					#size-cells = <0>;
+
+					port@0 {
+						reg = <0>;
+
+						mdss_dsi1_in: endpoint {
+							remote-endpoint = <&dpu_intf2_out>;
+						};
+					};
+
+					port@1 {
+						reg = <1>;
+
+						mdss_dsi1_out: endpoint {
+						};
+					};
+				};
+			};
+
+			mdss_dsi1_phy: phy@ae97000 {
+				compatible = "qcom,sm8750-dsi-phy-3nm";
+				reg = <0x0 0x0ae97000 0x0 0x200>,
+				      <0x0 0x0ae97200 0x0 0x280>,
+				      <0x0 0x0ae97500 0x0 0x400>;
+				reg-names = "dsi_phy",
+					    "dsi_phy_lane",
+					    "dsi_pll";
+
+				clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
+					 <&rpmhcc RPMH_CXO_CLK>;
+				clock-names = "iface",
+					      "ref";
+
+				#clock-cells = <1>;
+				#phy-cells = <0>;
+
+				status = "disabled";
+			};
+
+			mdss_dp0: displayport-controller@af54000 {
+				compatible = "qcom,sm8750-dp", "qcom,sm8650-dp";
+				reg = <0x0 0xaf54000 0x0 0x104>,
+				      <0x0 0xaf54200 0x0 0xc0>,
+				      <0x0 0xaf55000 0x0 0x770>,
+				      <0x0 0xaf56000 0x0 0x9c>,
+				      <0x0 0xaf57000 0x0 0x9c>;
+
+				interrupts-extended = <&mdss 12>;
+
+				clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
+					 <&dispcc DISP_CC_MDSS_DPTX0_AUX_CLK>,
+					 <&dispcc DISP_CC_MDSS_DPTX0_LINK_CLK>,
+					 <&dispcc DISP_CC_MDSS_DPTX0_LINK_INTF_CLK>,
+					 <&dispcc DISP_CC_MDSS_DPTX0_PIXEL0_CLK>,
+					 <&dispcc DISP_CC_MDSS_DPTX0_PIXEL1_CLK>;
+				clock-names = "core_iface",
+					      "core_aux",
+					      "ctrl_link",
+					      "ctrl_link_iface",
+					      "stream_pixel",
+					      "stream_1_pixel";
+
+				assigned-clocks = <&dispcc DISP_CC_MDSS_DPTX0_LINK_CLK_SRC>,
+						  <&dispcc DISP_CC_MDSS_DPTX0_PIXEL0_CLK_SRC>,
+						  <&dispcc DISP_CC_MDSS_DPTX0_PIXEL1_CLK_SRC>;
+				assigned-clock-parents = <&usb_dp_qmpphy QMP_USB43DP_DP_LINK_CLK>,
+							 <&usb_dp_qmpphy QMP_USB43DP_DP_VCO_DIV_CLK>,
+							 <&usb_dp_qmpphy QMP_USB43DP_DP_VCO_DIV_CLK>;
+
+				operating-points-v2 = <&dp_opp_table>;
+
+				power-domains = <&rpmhpd RPMHPD_MMCX>;
+
+				phys = <&usb_dp_qmpphy QMP_USB43DP_DP_PHY>;
+				phy-names = "dp";
+
+				#sound-dai-cells = <0>;
+
+				status = "disabled";
+
+				dp_opp_table: opp-table {
+					compatible = "operating-points-v2";
+
+					opp-192000000 {
+						opp-hz = /bits/ 64 <192000000>;
+						required-opps = <&rpmhpd_opp_low_svs_d1>;
+					};
+
+					opp-270000000 {
+						opp-hz = /bits/ 64 <270000000>;
+						required-opps = <&rpmhpd_opp_low_svs>;
+					};
+
+					opp-540000000 {
+						opp-hz = /bits/ 64 <540000000>;
+						required-opps = <&rpmhpd_opp_svs_l1>;
+					};
+
+					opp-810000000 {
+						opp-hz = /bits/ 64 <810000000>;
+						required-opps = <&rpmhpd_opp_nom>;
+					};
+				};
+
+				ports {
+					#address-cells = <1>;
+					#size-cells = <0>;
+
+					port@0 {
+						reg = <0>;
+
+						mdss_dp0_in: endpoint {
+							remote-endpoint = <&dpu_intf0_out>;
+						};
+					};
+
+					port@1 {
+						reg = <1>;
+
+						mdss_dp0_out: endpoint {
+							data-lanes = <0 1 2 3>;
+						};
+					};
+				};
+			};
+		};
+
+		dispcc: clock-controller@af00000 {
+			compatible = "qcom,sm8750-dispcc";
+			reg = <0 0x0af00000 0 0x20000>;
+
+			clocks = <&bi_tcxo_div2>,
+				 <&bi_tcxo_ao_div2>,
+				 <&gcc GCC_DISP_AHB_CLK>,
+				 <&sleep_clk>,
+				 <&mdss_dsi0_phy DSI_BYTE_PLL_CLK>,
+				 <&mdss_dsi0_phy DSI_PIXEL_PLL_CLK>,
+				 <&mdss_dsi1_phy DSI_BYTE_PLL_CLK>,
+				 <&mdss_dsi1_phy DSI_PIXEL_PLL_CLK>,
+				 <&usb_dp_qmpphy QMP_USB43DP_DP_LINK_CLK>,
+				 <&usb_dp_qmpphy QMP_USB43DP_DP_VCO_DIV_CLK>,
+				 <0>, /* dp1 */
+				 <0>,
+				 <0>, /* dp2 */
+				 <0>,
+				 <0>, /* dp3 */
+				 <0>;
+
+			power-domains = <&rpmhpd RPMHPD_MMCX>;
+			required-opps = <&rpmhpd_opp_low_svs>;
+
+			#clock-cells = <1>;
+			#reset-cells = <1>;
+			#power-domain-cells = <1>;
+		};
+
 		pdc: interrupt-controller@b220000 {
 			compatible = "qcom,sm8750-pdc", "qcom,pdc";
 			reg = <0x0 0x0b220000 0x0 0x10000>, <0x0 0x164400f0 0x0 0x64>;

-- 
2.51.0

[PATCH v3 2/4] arm64: dts: qcom: sm8750-mtp: Enable display

[Krzysztof Kozlowski]

Enable display on MTP8750 board with Novatek NT37801 panel.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/sm8750-mtp.dts | 70 +++++++++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sm8750-mtp.dts b/arch/arm64/boot/dts/qcom/sm8750-mtp.dts
index c8cb521b4c26..68644eccdbff 100644
--- a/arch/arm64/boot/dts/qcom/sm8750-mtp.dts
+++ b/arch/arm64/boot/dts/qcom/sm8750-mtp.dts
@@ -933,6 +933,48 @@ &lpass_vamacro {
 	qcom,dmic-sample-rate = <4800000>;
 };
 
+&mdss {
+	status = "okay";
+};
+
+&mdss_dsi0 {
+	vdda-supply = <&vreg_l3g_1p2>;
+
+	status = "okay";
+
+	panel@0 {
+		compatible = "novatek,nt37801";
+		reg = <0>;
+
+		reset-gpios = <&tlmm 98 GPIO_ACTIVE_LOW>;
+
+		vddio-supply = <&vreg_l12b_1p8>;
+		vci-supply = <&vreg_l13b_3p0>;
+		vdd-supply = <&vreg_l11b_1p0>;
+
+		pinctrl-0 = <&disp0_reset_n_active>, <&mdp_vsync_active>;
+		pinctrl-1 = <&disp0_reset_n_suspend>, <&mdp_vsync_suspend>;
+		pinctrl-names = "default", "sleep";
+
+		port {
+			panel0_in: endpoint {
+				remote-endpoint = <&mdss_dsi0_out>;
+			};
+		};
+	};
+};
+
+&mdss_dsi0_out {
+	remote-endpoint = <&panel0_in>;
+	data-lanes = <0 1 2 3>;
+};
+
+&mdss_dsi0_phy {
+	vdds-supply = <&vreg_l3i_0p88>;
+
+	status = "okay";
+};
+
 &pm8550_flash {
 	status = "okay";
 
@@ -1194,6 +1236,34 @@ sw-ctrl-pins {
 		};
 	};
 
+	disp0_reset_n_active: disp0-reset-n-active-state {
+		pins = "gpio98";
+		function = "gpio";
+		drive-strength = <8>;
+		bias-disable;
+	};
+
+	disp0_reset_n_suspend: disp0-reset-n-suspend-state {
+		pins = "gpio98";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-pull-down;
+	};
+
+	mdp_vsync_active: mdp-vsync-active-state {
+		pins = "gpio86";
+		function = "mdp_vsync";
+		drive-strength = <2>;
+		bias-pull-down;
+	};
+
+	mdp_vsync_suspend: mdp-vsync-suspend-state {
+		pins = "gpio86";
+		function = "mdp_vsync";
+		drive-strength = <2>;
+		bias-pull-down;
+	};
+
 	wcd_default: wcd-reset-n-active-state {
 		pins = "gpio101";
 		function = "gpio";

-- 
2.51.0

Re: [PATCH v3 2/4] arm64: dts: qcom: sm8750-mtp: Enable display

[Abel Vesa]

On 25-12-16 17:47:32, Krzysztof Kozlowski wrote:
> Enable display on MTP8750 board with Novatek NT37801 panel.
> 
> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>

Reviewed-by: Abel Vesa <abel.vesa@oss.qualcomm.com>

Re: [PATCH v3 2/4] arm64: dts: qcom: sm8750-mtp: Enable display

[Konrad Dybcio]

On 12/16/25 5:47 PM, Krzysztof Kozlowski wrote:
> Enable display on MTP8750 board with Novatek NT37801 panel.
> 
> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
> ---

[...]

> +	mdp_vsync_active: mdp-vsync-active-state {
> +		pins = "gpio86";
> +		function = "mdp_vsync";
> +		drive-strength = <2>;
> +		bias-pull-down;
> +	};
> +
> +	mdp_vsync_suspend: mdp-vsync-suspend-state {
> +		pins = "gpio86";
> +		function = "mdp_vsync";
> +		drive-strength = <2>;
> +		bias-pull-down;
> +	};

FYI these are identical

Konrad

[PATCH v3 3/4] arm64: dts: qcom: sm8750-mtp: Enable USB headset and Type-C altmode

[Krzysztof Kozlowski]

MTP8750 does not have audio jack connected and relies on USB mux
(WCD9395).  Add necessary nodes for proper audio headset support along
with USB Type-C altmode and orientation.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/sm8750-mtp.dts | 51 +++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sm8750-mtp.dts b/arch/arm64/boot/dts/qcom/sm8750-mtp.dts
index 68644eccdbff..a08bedd2987e 100644
--- a/arch/arm64/boot/dts/qcom/sm8750-mtp.dts
+++ b/arch/arm64/boot/dts/qcom/sm8750-mtp.dts
@@ -54,6 +54,15 @@ wcd939x: audio-codec {
 		vdd-px-supply = <&vreg_l2i_1p2>;
 
 		#sound-dai-cells = <1>;
+
+		mode-switch;
+		orientation-switch;
+
+		port {
+			wcd_codec_headset_in: endpoint {
+				remote-endpoint = <&wcd_usbss_headset_out>;
+			};
+		};
 	};
 
 	chosen {
@@ -230,6 +239,7 @@ port@2 {
 					reg = <2>;
 
 					pmic_glink_sbu: endpoint {
+						remote-endpoint = <&wcd_usbss_sbu_mux>;
 					};
 				};
 			};
@@ -925,6 +935,42 @@ vreg_l7n_3p3: ldo7 {
 	};
 };
 
+&i2c3 {
+	status = "okay";
+
+	wcd_usbss: typec-mux@e {
+		compatible = "qcom,wcd9395-usbss", "qcom,wcd9390-usbss";
+		reg = <0xe>;
+
+		vdd-supply = <&vreg_l15b_1p8>;
+		reset-gpios = <&tlmm 152 GPIO_ACTIVE_HIGH>;
+
+		mode-switch;
+		orientation-switch;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+
+				wcd_usbss_sbu_mux: endpoint {
+					remote-endpoint = <&pmic_glink_sbu>;
+				};
+			};
+
+			port@1 {
+				reg = <1>;
+
+				wcd_usbss_headset_out: endpoint {
+					remote-endpoint = <&wcd_codec_headset_in>;
+				};
+			};
+		};
+	};
+};
+
 &lpass_vamacro {
 	pinctrl-0 = <&dmic01_default>, <&dmic23_default>;
 	pinctrl-names = "default";
@@ -1087,6 +1133,11 @@ &pmih0108_eusb2_repeater {
 	vdd3-supply = <&vreg_l5b_3p1>;
 };
 
+&qup_i2c3_data_clk {
+	/* Use internal I2C pull-up */
+	bias-pull-up = <2200>;
+};
+
 &qupv3_1 {
 	status = "okay";
 };

-- 
2.51.0

Re: [PATCH v3 3/4] arm64: dts: qcom: sm8750-mtp: Enable USB headset and Type-C altmode

[Dmitry Baryshkov]

On Tue, Dec 16, 2025 at 05:47:33PM +0100, Krzysztof Kozlowski wrote:
> MTP8750 does not have audio jack connected and relies on USB mux
> (WCD9395).  Add necessary nodes for proper audio headset support along
> with USB Type-C altmode and orientation.

Nit: accessory mode, not altmode.

> 
> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
> Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
> ---
>  arch/arm64/boot/dts/qcom/sm8750-mtp.dts | 51 +++++++++++++++++++++++++++++++++
>  1 file changed, 51 insertions(+)
> 

-- 
With best wishes
Dmitry

[PATCH v3 4/4] arm64: dts: qcom: sm8750-mtp: Enable DisplayPort over USB

[Krzysztof Kozlowski]

Hook up DisplayPort parts over Type-C USB on MTP8750.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/sm8750-mtp.dts | 8 ++++++++
 arch/arm64/boot/dts/qcom/sm8750.dtsi    | 2 ++
 2 files changed, 10 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sm8750-mtp.dts b/arch/arm64/boot/dts/qcom/sm8750-mtp.dts
index a08bedd2987e..383bce57ec62 100644
--- a/arch/arm64/boot/dts/qcom/sm8750-mtp.dts
+++ b/arch/arm64/boot/dts/qcom/sm8750-mtp.dts
@@ -983,6 +983,14 @@ &mdss {
 	status = "okay";
 };
 
+&mdss_dp0 {
+	status = "okay";
+};
+
+&mdss_dp0_out {
+	link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000 8100000000>;
+};
+
 &mdss_dsi0 {
 	vdda-supply = <&vreg_l3g_1p2>;
 
diff --git a/arch/arm64/boot/dts/qcom/sm8750.dtsi b/arch/arm64/boot/dts/qcom/sm8750.dtsi
index 11194b34e6dc..6584e324a163 100644
--- a/arch/arm64/boot/dts/qcom/sm8750.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8750.dtsi
@@ -2648,6 +2648,7 @@ port@2 {
 					reg = <2>;
 
 					usb_dp_qmpphy_dp_in: endpoint {
+						remote-endpoint = <&mdss_dp0_out>;
 					};
 				};
 			};
@@ -3142,6 +3143,7 @@ port@1 {
 
 						mdss_dp0_out: endpoint {
 							data-lanes = <0 1 2 3>;
+							remote-endpoint = <&usb_dp_qmpphy_dp_in>;
 						};
 					};
 				};

-- 
2.51.0

Re: [PATCH v3 4/4] arm64: dts: qcom: sm8750-mtp: Enable DisplayPort over USB

[Abel Vesa]

On 25-12-16 17:47:34, Krzysztof Kozlowski wrote:
> Hook up DisplayPort parts over Type-C USB on MTP8750.
> 
> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
 
Reviewed-by: Abel Vesa <abel.vesa@oss.qualcomm.com>

Re: [PATCH v3 4/4] arm64: dts: qcom: sm8750-mtp: Enable DisplayPort over USB

[Konrad Dybcio]

On 12/16/25 5:47 PM, Krzysztof Kozlowski wrote:
> Hook up DisplayPort parts over Type-C USB on MTP8750.
> 
> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
> ---

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>

Konrad