linux-kernel - [PATCH] arm64: dts: qcom: lemans: add DT changes to enable MDSS1 and DPU

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250925-lemans_dual-v1-1-9c371803198d@oss.qualcomm.com>
Date: Thu, 25 Sep 2025 14:28:07 +0530
From: Mahadevan <mahadevan.p@....qualcomm.com>
To: Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Mahadevan <mahadevan.p@....qualcomm.com>
Subject: [PATCH] arm64: dts: qcom: lemans: add DT changes to enable MDSS1
 and DPU

Add devicetree changes to enable second Mobile Display
Subsystem (MDSS1) and its Display Processing Unit(DPU) for
Qualcomm LEMANS platform.

Signed-off-by: Mahadevan <mahadevan.p@....qualcomm.com>
---
 arch/arm64/boot/dts/qcom/lemans.dtsi | 88 ++++++++++++++++++++++++++++++++++++
 1 file changed, 88 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/lemans.dtsi b/arch/arm64/boot/dts/qcom/lemans.dtsi
index 48f753002fc459a3e9fac0c0e98cbec6013fea0f..45c11c050d3f8853701fd20cf647aef5c6a9a8c9 100644
--- a/arch/arm64/boot/dts/qcom/lemans.dtsi
+++ b/arch/arm64/boot/dts/qcom/lemans.dtsi
@@ -6751,6 +6751,94 @@ compute-cb@3 {
 			};
 		};
 
+		mdss1: display-subsystem@...00000 {
+			compatible = "qcom,sa8775p-mdss";
+			reg = <0x0 0x22000000 0x0 0x1000>;
+			reg-names = "mdss";
+
+			/* same path used twice */
+			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";
+
+			mdss1_mdp: display-controller@...01000 {
+				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>;
+
+				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>;
+					};
+				};
+			};
+		};
+
 		dispcc1: clock-controller@...00000 {
 			compatible = "qcom,sa8775p-dispcc1";
 			reg = <0x0 0x22100000 0x0 0x20000>;

---
base-commit: 846bd2225ec3cfa8be046655e02b9457ed41973e
change-id: 20250923-lemans_dual-c03ad5c84a84

Best regards,
-- 
Mahadevan <mahadevan.p@....qualcomm.com>