[PATCH v2 0/3] Enable mdss1 Display Port for Qualcomm lemans-ride platform

[PATCH v2 0/3] Enable mdss1 Display Port for Qualcomm lemans-ride platform

[Mani Chandana Ballary Kuntumalla]

This series adds the DPTX0 and DPTX1 nodes, as a part of mdss1
on Qualcomm lemans SoC. It also enables Display Port on Qualcomm
lemans-ride platform.

---
This series is dependent on below series:
https://lore.kernel.org/all/20251104114327.27842-1-riteshk@qti.qualcomm.com/

Change in v2:
- Added fixes tag for the DP driver patch [Dmitry]
- Included below patch in this series after addressing comments [Dmitry and Konrad]
  https://lore.kernel.org/all/20250925-lemans_dual-v1-1-9c371803198d@oss.qualcomm.com/
	- Removed the misleading comment: "same path used twice" [Konrad]
	- Removed unused label in 'display-controller' [Dmitry]
- Removed extra zeroes in dispcc1 node [Konrad]
- Enbaled dispcc1 by default in main dtsi file [Dmitry]
- Added EDP ref clock and updated dependency series.
- Link to v1: https://lore.kernel.org/all/20250926085956.2346179-1-quic_mkuntuma@quicinc.com/

---
Mani Chandana Ballary Kuntumalla (3):
  drm/msm/dp: Update msm_dp_controller IDs for sa8775p
  arm64: dts: qcom: lemans: add mdss1 display device nodes
  arm64: dts: qcom: lemans-ride: Enable mdss1 display Port

 .../boot/dts/qcom/lemans-ride-common.dtsi     |  80 +++++
 arch/arm64/boot/dts/qcom/lemans.dtsi          | 338 +++++++++++++++++-
 drivers/gpu/drm/msm/dp/dp_display.c           |   4 +-
 3 files changed, 418 insertions(+), 4 deletions(-)

-- 
2.34.1

[PATCH v2 1/3] drm/msm/dp: Update msm_dp_controller IDs for sa8775p

[Mani Chandana Ballary Kuntumalla]

The Qualcomm SA8775P platform comes with 2 DisplayPort controllers
for each mdss. Update controller id for DPTX0 and DPTX1 of mdss1.

Fixes: dcb380d19e58 ("drm/msm/dp: Add DisplayPort controller for SA8775P")
Signed-off-by: Mani Chandana Ballary Kuntumalla <quic_mkuntuma@quicinc.com>
---
 drivers/gpu/drm/msm/dp/dp_display.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
index 9bd9cd5c1e03..a082f4d3ebe2 100644
--- a/drivers/gpu/drm/msm/dp/dp_display.c
+++ b/drivers/gpu/drm/msm/dp/dp_display.c
@@ -141,8 +141,8 @@ static const struct msm_dp_desc msm_dp_desc_glymur[] = {
 static const struct msm_dp_desc msm_dp_desc_sa8775p[] = {
 	{ .io_start = 0x0af54000, .id = MSM_DP_CONTROLLER_0, .wide_bus_supported = true },
 	{ .io_start = 0x0af5c000, .id = MSM_DP_CONTROLLER_1, .wide_bus_supported = true },
-	{ .io_start = 0x22154000, .id = MSM_DP_CONTROLLER_2, .wide_bus_supported = true },
-	{ .io_start = 0x2215c000, .id = MSM_DP_CONTROLLER_3, .wide_bus_supported = true },
+	{ .io_start = 0x22154000, .id = MSM_DP_CONTROLLER_0, .wide_bus_supported = true },
+	{ .io_start = 0x2215c000, .id = MSM_DP_CONTROLLER_1, .wide_bus_supported = true },
 	{}
 };
 
-- 
2.34.1

[PATCH v2 2/3] arm64: dts: qcom: lemans: add mdss1 display device nodes

[Mani Chandana Ballary Kuntumalla]

Add devicetree changes to enable second Mobile Display Subsystem (mdss1),
Display Processing Unit(DPU), Display Port(DP) controllers and eDP PHYs
on the Qualcomm Lemans platform.

Signed-off-by: Mahadevan P <mahadevan.p@oss.qualcomm.com>
Signed-off-by: Mani Chandana Ballary Kuntumalla <quic_mkuntuma@quicinc.com>
---
 arch/arm64/boot/dts/qcom/lemans.dtsi | 338 ++++++++++++++++++++++++++-
 1 file changed, 336 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/lemans.dtsi b/arch/arm64/boot/dts/qcom/lemans.dtsi
index f56ca4052c56..110189071cf1 100644
--- a/arch/arm64/boot/dts/qcom/lemans.dtsi
+++ b/arch/arm64/boot/dts/qcom/lemans.dtsi
@@ -6792,6 +6792,340 @@ compute-cb@3 {
 			};
 		};
 
+		mdss1: display-subsystem@22000000 {
+			compatible = "qcom,sa8775p-mdss";
+			reg = <0x0 0x22000000 0x0 0x1000>;
+			reg-names = "mdss";
+
+			interconnects = <&mmss_noc MASTER_MDP_CORE1_0 QCOM_ICC_TAG_ALWAYS
+					 &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>,
+					<&mmss_noc MASTER_MDP_CORE1_1 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",
+					     "mdp1-mem",
+					     "cpu-cfg";
+
+			resets = <&dispcc1 MDSS_DISP_CC_MDSS_CORE_BCR>;
+
+			power-domains = <&dispcc1 MDSS_DISP_CC_MDSS_CORE_GDSC>;
+
+			clocks = <&dispcc1 MDSS_DISP_CC_MDSS_AHB_CLK>,
+				 <&gcc GCC_DISP1_HF_AXI_CLK>,
+				 <&dispcc1 MDSS_DISP_CC_MDSS_MDP_CLK>;
+
+			interrupts = <GIC_SPI 865 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-controller;
+			#interrupt-cells = <1>;
+
+			iommus = <&apps_smmu 0x1800 0x402>;
+
+			#address-cells = <2>;
+			#size-cells = <2>;
+			ranges;
+
+			status = "disabled";
+
+			display-controller@22001000 {
+				compatible = "qcom,sa8775p-dpu";
+				reg = <0x0 0x22001000 0x0 0x8f000>,
+				      <0x0 0x220b0000 0x0 0x3000>;
+				reg-names = "mdp", "vbif";
+
+				clocks = <&gcc GCC_DISP1_HF_AXI_CLK>,
+					 <&dispcc1 MDSS_DISP_CC_MDSS_AHB_CLK>,
+					 <&dispcc1 MDSS_DISP_CC_MDSS_MDP_LUT_CLK>,
+					 <&dispcc1 MDSS_DISP_CC_MDSS_MDP_CLK>,
+					 <&dispcc1 MDSS_DISP_CC_MDSS_VSYNC_CLK>;
+				clock-names = "nrt_bus",
+					      "iface",
+					      "lut",
+					      "core",
+					      "vsync";
+
+				assigned-clocks = <&dispcc1 MDSS_DISP_CC_MDSS_VSYNC_CLK>;
+				assigned-clock-rates = <19200000>;
+
+				operating-points-v2 = <&mdss1_mdp_opp_table>;
+				power-domains = <&rpmhpd SA8775P_MMCX>;
+
+				interrupt-parent = <&mdss1>;
+				interrupts = <0>;
+
+				ports {
+					#address-cells = <1>;
+					#size-cells = <0>;
+
+					port@0 {
+						reg = <0>;
+
+						dpu1_intf0_out: endpoint {
+							remote-endpoint = <&mdss1_dp0_in>;
+						};
+					};
+
+					port@1 {
+						reg = <1>;
+
+						dpu1_intf4_out: endpoint {
+							remote-endpoint = <&mdss1_dp1_in>;
+						};
+					};
+				};
+
+				mdss1_mdp_opp_table: opp-table {
+					compatible = "operating-points-v2";
+
+					opp-375000000 {
+						opp-hz = /bits/ 64 <375000000>;
+						required-opps = <&rpmhpd_opp_svs_l1>;
+					};
+
+					opp-500000000 {
+						opp-hz = /bits/ 64 <500000000>;
+						required-opps = <&rpmhpd_opp_nom>;
+					};
+
+					opp-575000000 {
+						opp-hz = /bits/ 64 <575000000>;
+						required-opps = <&rpmhpd_opp_turbo>;
+					};
+
+					opp-650000000 {
+						opp-hz = /bits/ 64 <650000000>;
+						required-opps = <&rpmhpd_opp_turbo_l1>;
+					};
+				};
+			};
+
+			mdss1_dp0_phy: phy@220c2a00 {
+				compatible = "qcom,sa8775p-edp-phy";
+
+				reg = <0x0 0x220c2a00 0x0 0x200>,
+				      <0x0 0x220c2200 0x0 0xd0>,
+				      <0x0 0x220c2600 0x0 0xd0>,
+				      <0x0 0x220c2000 0x0 0x1c8>;
+
+				clocks = <&dispcc1 MDSS_DISP_CC_MDSS_DPTX0_AUX_CLK>,
+					 <&dispcc1 MDSS_DISP_CC_MDSS_AHB_CLK>,
+					 <&gcc GCC_EDP_REF_CLKREF_EN>;
+				clock-names = "aux",
+					      "cfg_ahb",
+					      "ref";
+
+				#clock-cells = <1>;
+				#phy-cells = <0>;
+
+				status = "disabled";
+			};
+
+			mdss1_dp1_phy: phy@220c5a00 {
+				compatible = "qcom,sa8775p-edp-phy";
+
+				reg = <0x0 0x220c5a00 0x0 0x200>,
+				      <0x0 0x220c5200 0x0 0xd0>,
+				      <0x0 0x220c5600 0x0 0xd0>,
+				      <0x0 0x220c5000 0x0 0x1c8>;
+
+				clocks = <&dispcc1 MDSS_DISP_CC_MDSS_DPTX1_AUX_CLK>,
+					 <&dispcc1 MDSS_DISP_CC_MDSS_AHB_CLK>,
+					 <&gcc GCC_EDP_REF_CLKREF_EN>;
+				clock-names = "aux",
+					      "cfg_ahb",
+					      "ref";
+
+				#clock-cells = <1>;
+				#phy-cells = <0>;
+
+				status = "disabled";
+			};
+
+			mdss1_dp0: displayport-controller@22154000 {
+				compatible = "qcom,sa8775p-dp";
+
+				reg = <0x0 0x22154000 0x0 0x104>,
+				      <0x0 0x22154200 0x0 0x0c0>,
+				      <0x0 0x22155000 0x0 0x770>,
+				      <0x0 0x22156000 0x0 0x09c>,
+				      <0x0 0x22157000 0x0 0x09c>,
+				      <0x0 0x22158000 0x0 0x09c>,
+				      <0x0 0x22159000 0x0 0x09c>,
+				      <0x0 0x2215a000 0x0 0x23c>,
+				      <0x0 0x2215b000 0x0 0x23c>;
+
+				interrupt-parent = <&mdss1>;
+				interrupts = <12>;
+
+				clocks = <&dispcc1 MDSS_DISP_CC_MDSS_AHB_CLK>,
+					 <&dispcc1 MDSS_DISP_CC_MDSS_DPTX0_AUX_CLK>,
+					 <&dispcc1 MDSS_DISP_CC_MDSS_DPTX0_LINK_CLK>,
+					 <&dispcc1 MDSS_DISP_CC_MDSS_DPTX0_LINK_INTF_CLK>,
+					 <&dispcc1 MDSS_DISP_CC_MDSS_DPTX0_PIXEL0_CLK>,
+					 <&dispcc1 MDSS_DISP_CC_MDSS_DPTX0_PIXEL1_CLK>,
+					 <&dispcc1 MDSS_DISP_CC_MDSS_DPTX0_PIXEL2_CLK>,
+					 <&dispcc1 MDSS_DISP_CC_MDSS_DPTX0_PIXEL3_CLK>;
+				clock-names = "core_iface",
+					      "core_aux",
+					      "ctrl_link",
+					      "ctrl_link_iface",
+					      "stream_pixel",
+					      "stream_1_pixel",
+					      "stream_2_pixel",
+					      "stream_3_pixel";
+				assigned-clocks = <&dispcc1 MDSS_DISP_CC_MDSS_DPTX0_LINK_CLK_SRC>,
+						  <&dispcc1 MDSS_DISP_CC_MDSS_DPTX0_PIXEL0_CLK_SRC>,
+						  <&dispcc1 MDSS_DISP_CC_MDSS_DPTX0_PIXEL1_CLK_SRC>,
+						  <&dispcc1 MDSS_DISP_CC_MDSS_DPTX0_PIXEL2_CLK_SRC>,
+						  <&dispcc1 MDSS_DISP_CC_MDSS_DPTX0_PIXEL3_CLK_SRC>;
+				assigned-clock-parents = <&mdss1_dp0_phy 0>,
+							 <&mdss1_dp0_phy 1>,
+							 <&mdss1_dp0_phy 1>,
+							 <&mdss1_dp0_phy 1>,
+							 <&mdss1_dp0_phy 1>;
+				phys = <&mdss1_dp0_phy>;
+				phy-names = "dp";
+
+				operating-points-v2 = <&mdss1_dp_opp_table>;
+				power-domains = <&rpmhpd SA8775P_MMCX>;
+
+				#sound-dai-cells = <0>;
+
+				status = "disabled";
+
+				ports {
+					#address-cells = <1>;
+					#size-cells = <0>;
+
+					port@0 {
+						reg = <0>;
+
+						mdss1_dp0_in: endpoint {
+							remote-endpoint = <&dpu1_intf0_out>;
+						};
+					};
+
+					port@1 {
+						reg = <1>;
+
+						mdss1_dp0_out: endpoint { };
+					};
+				};
+
+				mdss1_dp_opp_table: opp-table {
+					compatible = "operating-points-v2";
+
+					opp-160000000 {
+						opp-hz = /bits/ 64 <160000000>;
+						required-opps = <&rpmhpd_opp_low_svs>;
+					};
+
+					opp-270000000 {
+						opp-hz = /bits/ 64 <270000000>;
+						required-opps = <&rpmhpd_opp_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>;
+					};
+				};
+			};
+
+			mdss1_dp1: displayport-controller@2215c000 {
+				compatible = "qcom,sa8775p-dp";
+
+				reg = <0x0 0x2215c000 0x0 0x104>,
+				      <0x0 0x2215c200 0x0 0x0c0>,
+				      <0x0 0x2215d000 0x0 0x770>,
+				      <0x0 0x2215e000 0x0 0x09c>,
+				      <0x0 0x2215f000 0x0 0x09c>,
+				      <0x0 0x22160000 0x0 0x09c>,
+				      <0x0 0x22161000 0x0 0x09c>,
+				      <0x0 0x22162000 0x0 0x23c>,
+				      <0x0 0x22163000 0x0 0x23c>;
+
+				interrupt-parent = <&mdss1>;
+				interrupts = <13>;
+
+				clocks = <&dispcc1 MDSS_DISP_CC_MDSS_AHB_CLK>,
+					 <&dispcc1 MDSS_DISP_CC_MDSS_DPTX1_AUX_CLK>,
+					 <&dispcc1 MDSS_DISP_CC_MDSS_DPTX1_LINK_CLK>,
+					 <&dispcc1 MDSS_DISP_CC_MDSS_DPTX1_LINK_INTF_CLK>,
+					 <&dispcc1 MDSS_DISP_CC_MDSS_DPTX1_PIXEL0_CLK>,
+					 <&dispcc1 MDSS_DISP_CC_MDSS_DPTX1_PIXEL1_CLK>;
+				clock-names = "core_iface",
+					      "core_aux",
+					      "ctrl_link",
+					      "ctrl_link_iface",
+					      "stream_pixel",
+					      "stream_1_pixel";
+				assigned-clocks = <&dispcc1 MDSS_DISP_CC_MDSS_DPTX1_LINK_CLK_SRC>,
+						  <&dispcc1 MDSS_DISP_CC_MDSS_DPTX1_PIXEL0_CLK_SRC>,
+						  <&dispcc1 MDSS_DISP_CC_MDSS_DPTX1_PIXEL1_CLK_SRC>;
+				assigned-clock-parents = <&mdss1_dp1_phy 0>,
+							 <&mdss1_dp1_phy 1>,
+							 <&mdss1_dp1_phy 1>;
+				phys = <&mdss1_dp1_phy>;
+				phy-names = "dp";
+
+				operating-points-v2 = <&mdss1_dp1_opp_table>;
+				power-domains = <&rpmhpd SA8775P_MMCX>;
+
+				#sound-dai-cells = <0>;
+
+				status = "disabled";
+
+				ports {
+					#address-cells = <1>;
+					#size-cells = <0>;
+
+					port@0 {
+						reg = <0>;
+
+						mdss1_dp1_in: endpoint {
+							remote-endpoint = <&dpu1_intf4_out>;
+						};
+					};
+
+					port@1 {
+						reg = <1>;
+
+						mdss1_dp1_out: endpoint { };
+					};
+				};
+
+				mdss1_dp1_opp_table: opp-table {
+					compatible = "operating-points-v2";
+
+					opp-160000000 {
+						opp-hz = /bits/ 64 <160000000>;
+						required-opps = <&rpmhpd_opp_low_svs>;
+					};
+
+					opp-270000000 {
+						opp-hz = /bits/ 64 <270000000>;
+						required-opps = <&rpmhpd_opp_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>;
+					};
+				};
+			};
+		};
+
 		dispcc1: clock-controller@22100000 {
 			compatible = "qcom,sa8775p-dispcc1";
 			reg = <0x0 0x22100000 0x0 0x20000>;
@@ -6799,13 +7133,13 @@ dispcc1: clock-controller@22100000 {
 				 <&rpmhcc RPMH_CXO_CLK>,
 				 <&rpmhcc RPMH_CXO_CLK_A>,
 				 <&sleep_clk>,
-				 <0>, <0>, <0>, <0>,
+				 <&mdss1_dp0_phy 0>, <&mdss1_dp0_phy 1>,
+				 <&mdss1_dp1_phy 0>, <&mdss1_dp1_phy 1>,
 				 <0>, <0>, <0>, <0>;
 			power-domains = <&rpmhpd SA8775P_MMCX>;
 			#clock-cells = <1>;
 			#reset-cells = <1>;
 			#power-domain-cells = <1>;
-			status = "disabled";
 		};
 
 		ethernet1: ethernet@23000000 {
-- 
2.34.1

[PATCH v2 3/3] arm64: dts: qcom: lemans-ride: Enable mdss1 display Port

[Mani Chandana Ballary Kuntumalla]

This change enables DP controllers, DPTX0 and DPTX1 alongside
their corresponding PHYs of mdss1 which corresponds to edp2
and edp3.

Signed-off-by: Mani Chandana Ballary Kuntumalla <quic_mkuntuma@quicinc.com>
---
 .../boot/dts/qcom/lemans-ride-common.dtsi     | 80 +++++++++++++++++++
 1 file changed, 80 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/lemans-ride-common.dtsi b/arch/arm64/boot/dts/qcom/lemans-ride-common.dtsi
index c69aa2f41ce2..a6d7c3bb3a92 100644
--- a/arch/arm64/boot/dts/qcom/lemans-ride-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/lemans-ride-common.dtsi
@@ -180,6 +180,30 @@ dp1_connector_in: endpoint {
 		};
 	};
 
+	dp2-connector {
+		compatible = "dp-connector";
+		label = "eDP2";
+		type = "full-size";
+
+		port {
+			dp2_connector_in: endpoint {
+				remote-endpoint = <&mdss1_dp0_out>;
+			};
+		};
+	};
+
+	dp3-connector {
+		compatible = "dp-connector";
+		label = "eDP3";
+		type = "full-size";
+
+		port {
+			dp3_connector_in: endpoint {
+				remote-endpoint = <&mdss1_dp1_out>;
+			};
+		};
+	};
+
 	dp-dsi0-connector {
 		compatible = "dp-connector";
 		label = "DSI0";
@@ -631,6 +655,50 @@ &mdss0_dsi1_phy {
 	status = "okay";
 };
 
+&mdss1 {
+	status = "okay";
+};
+
+&mdss1_dp0 {
+	pinctrl-0 = <&dp2_hot_plug_det>;
+	pinctrl-names = "default";
+
+	status = "okay";
+};
+
+&mdss1_dp0_out {
+	data-lanes = <0 1 2 3>;
+	link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000 8100000000>;
+	remote-endpoint = <&dp2_connector_in>;
+};
+
+&mdss1_dp0_phy {
+	vdda-phy-supply = <&vreg_l1c>;
+	vdda-pll-supply = <&vreg_l4a>;
+
+	status = "okay";
+};
+
+&mdss1_dp1 {
+	pinctrl-0 = <&dp3_hot_plug_det>;
+	pinctrl-names = "default";
+
+	status = "okay";
+};
+
+&mdss1_dp1_out {
+	data-lanes = <0 1 2 3>;
+	link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000 8100000000>;
+	remote-endpoint = <&dp3_connector_in>;
+};
+
+&mdss1_dp1_phy {
+	vdda-phy-supply = <&vreg_l1c>;
+	vdda-pll-supply = <&vreg_l4a>;
+
+	status = "okay";
+};
+
 &pmm8654au_0_gpios {
 	gpio-line-names = "DS_EN",
 			  "POFF_COMPLETE",
@@ -808,6 +876,18 @@ dp1_hot_plug_det: dp1-hot-plug-det-state {
 		bias-disable;
 	};
 
+	dp2_hot_plug_det: dp2-hot-plug-det-state {
+		pins = "gpio104";
+		function = "edp2_hot";
+		bias-disable;
+	};
+
+	dp3_hot_plug_det: dp3-hot-plug-det-state {
+		pins = "gpio103";
+		function = "edp3_hot";
+		bias-disable;
+	};
+
 	io_expander_intr_active: io-expander-intr-active-state {
 		pins = "gpio98";
 		function = "gpio";
-- 
2.34.1

Re: [PATCH v2 2/3] arm64: dts: qcom: lemans: add mdss1 display device nodes

[Konrad Dybcio]

On 11/25/25 11:56 AM, Mani Chandana Ballary Kuntumalla wrote:
> Add devicetree changes to enable second Mobile Display Subsystem (mdss1),
> Display Processing Unit(DPU), Display Port(DP) controllers and eDP PHYs
> on the Qualcomm Lemans platform.
> 
> Signed-off-by: Mahadevan P <mahadevan.p@oss.qualcomm.com>
> Signed-off-by: Mani Chandana Ballary Kuntumalla <quic_mkuntuma@quicinc.com>
> ---

[...]

> +			mdss1_dp1: displayport-controller@2215c000 {
> +				compatible = "qcom,sa8775p-dp";
> +
> +				reg = <0x0 0x2215c000 0x0 0x104>,
> +				      <0x0 0x2215c200 0x0 0x0c0>,
> +				      <0x0 0x2215d000 0x0 0x770>,
> +				      <0x0 0x2215e000 0x0 0x09c>,
> +				      <0x0 0x2215f000 0x0 0x09c>,
> +				      <0x0 0x22160000 0x0 0x09c>,
> +				      <0x0 0x22161000 0x0 0x09c>,
> +				      <0x0 0x22162000 0x0 0x23c>,
> +				      <0x0 0x22163000 0x0 0x23c>;

The last two regions still happen not to exist

https://lore.kernel.org/all/vc2hen5r7xdaj4nepkoy7pk2jmj4y4hgog5o2nfndrff4yti2m@g46svhsdyy7m/

Konrad

Re: [PATCH v2 2/3] arm64: dts: qcom: lemans: add mdss1 display device nodes

[Dmitry Baryshkov]

On Mon, Dec 01, 2025 at 02:35:44PM +0100, Konrad Dybcio wrote:
> On 11/25/25 11:56 AM, Mani Chandana Ballary Kuntumalla wrote:
> > Add devicetree changes to enable second Mobile Display Subsystem (mdss1),
> > Display Processing Unit(DPU), Display Port(DP) controllers and eDP PHYs
> > on the Qualcomm Lemans platform.
> > 
> > Signed-off-by: Mahadevan P <mahadevan.p@oss.qualcomm.com>
> > Signed-off-by: Mani Chandana Ballary Kuntumalla <quic_mkuntuma@quicinc.com>
> > ---
> 
> [...]
> 
> > +			mdss1_dp1: displayport-controller@2215c000 {
> > +				compatible = "qcom,sa8775p-dp";
> > +
> > +				reg = <0x0 0x2215c000 0x0 0x104>,
> > +				      <0x0 0x2215c200 0x0 0x0c0>,
> > +				      <0x0 0x2215d000 0x0 0x770>,
> > +				      <0x0 0x2215e000 0x0 0x09c>,
> > +				      <0x0 0x2215f000 0x0 0x09c>,
> > +				      <0x0 0x22160000 0x0 0x09c>,
> > +				      <0x0 0x22161000 0x0 0x09c>,
> > +				      <0x0 0x22162000 0x0 0x23c>,
> > +				      <0x0 0x22163000 0x0 0x23c>;
> 
> The last two regions still happen not to exist

According to the memory map I observe, they do exist.

> https://lore.kernel.org/all/vc2hen5r7xdaj4nepkoy7pk2jmj4y4hgog5o2nfndrff4yti2m@g46svhsdyy7m/

-- 
With best wishes
Dmitry

Re: [PATCH v2 1/3] drm/msm/dp: Update msm_dp_controller IDs for sa8775p

[Dmitry Baryshkov]

On Tue, Nov 25, 2025 at 04:26:20PM +0530, Mani Chandana Ballary Kuntumalla wrote:
> The Qualcomm SA8775P platform comes with 2 DisplayPort controllers
> for each mdss. Update controller id for DPTX0 and DPTX1 of mdss1.
> 
> Fixes: dcb380d19e58 ("drm/msm/dp: Add DisplayPort controller for SA8775P")
> Signed-off-by: Mani Chandana Ballary Kuntumalla <quic_mkuntuma@quicinc.com>
> ---
>  drivers/gpu/drm/msm/dp/dp_display.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>


-- 
With best wishes
Dmitry

Re: [PATCH v2 2/3] arm64: dts: qcom: lemans: add mdss1 display device nodes

[Dmitry Baryshkov]

On Tue, Nov 25, 2025 at 04:26:21PM +0530, Mani Chandana Ballary Kuntumalla wrote:
> Add devicetree changes to enable second Mobile Display Subsystem (mdss1),
> Display Processing Unit(DPU), Display Port(DP) controllers and eDP PHYs
> on the Qualcomm Lemans platform.
> 
> Signed-off-by: Mahadevan P <mahadevan.p@oss.qualcomm.com>
> Signed-off-by: Mani Chandana Ballary Kuntumalla <quic_mkuntuma@quicinc.com>
> ---
>  arch/arm64/boot/dts/qcom/lemans.dtsi | 338 ++++++++++++++++++++++++++-
>  1 file changed, 336 insertions(+), 2 deletions(-)
> 
> +
> +				mdss1_dp_opp_table: opp-table {

Why do we need two instances of the table?

> +					compatible = "operating-points-v2";
> +
> +					opp-160000000 {
> +						opp-hz = /bits/ 64 <160000000>;
> +						required-opps = <&rpmhpd_opp_low_svs>;
> +					};
> +
> +					opp-270000000 {
> +						opp-hz = /bits/ 64 <270000000>;
> +						required-opps = <&rpmhpd_opp_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>;
> +					};
> +				};
> +			};
> +
> +				mdss1_dp1_opp_table: opp-table {
> +					compatible = "operating-points-v2";
> +
> +					opp-160000000 {
> +						opp-hz = /bits/ 64 <160000000>;
> +						required-opps = <&rpmhpd_opp_low_svs>;
> +					};
> +
> +					opp-270000000 {
> +						opp-hz = /bits/ 64 <270000000>;
> +						required-opps = <&rpmhpd_opp_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>;
> +					};
> +				};
> +			};
> +		};
> +

-- 
With best wishes
Dmitry

Re: [PATCH v2 2/3] arm64: dts: qcom: lemans: add mdss1 display device nodes

[Konrad Dybcio]

On 12/10/25 9:21 AM, Dmitry Baryshkov wrote:
> On Mon, Dec 01, 2025 at 02:35:44PM +0100, Konrad Dybcio wrote:
>> On 11/25/25 11:56 AM, Mani Chandana Ballary Kuntumalla wrote:
>>> Add devicetree changes to enable second Mobile Display Subsystem (mdss1),
>>> Display Processing Unit(DPU), Display Port(DP) controllers and eDP PHYs
>>> on the Qualcomm Lemans platform.
>>>
>>> Signed-off-by: Mahadevan P <mahadevan.p@oss.qualcomm.com>
>>> Signed-off-by: Mani Chandana Ballary Kuntumalla <quic_mkuntuma@quicinc.com>
>>> ---
>>
>> [...]
>>
>>> +			mdss1_dp1: displayport-controller@2215c000 {
>>> +				compatible = "qcom,sa8775p-dp";
>>> +
>>> +				reg = <0x0 0x2215c000 0x0 0x104>,
>>> +				      <0x0 0x2215c200 0x0 0x0c0>,
>>> +				      <0x0 0x2215d000 0x0 0x770>,
>>> +				      <0x0 0x2215e000 0x0 0x09c>,
>>> +				      <0x0 0x2215f000 0x0 0x09c>,
>>> +				      <0x0 0x22160000 0x0 0x09c>,
>>> +				      <0x0 0x22161000 0x0 0x09c>,
>>> +				      <0x0 0x22162000 0x0 0x23c>,
>>> +				      <0x0 0x22163000 0x0 0x23c>;
>>
>> The last two regions still happen not to exist
> 
> According to the memory map I observe, they do exist.

Hm, you're right, I don't know why I couldn't find them in the past

Konrad