dt-bindings: msm: add DT bindings for sc7280
MSM Mobile Display Subsystem (MDSS) encapsulates sub-blocks like DPU display controller, DSI, EDP etc. Add required DPU device tree bindings for SC7280. Signed-off-by: Krishna Manikandan <quic_mkrishn@quicinc.com> Changes in v2: - Drop target from description (Stephen Boyd) - Drop items from compatible (Stephen Boyd) - Add clock names one per line for readability (Stephen Boyd) - Use correct indendation (Stephen Boyd) Reviewed-by: Stephen Boyd <swboyd@chromium.org> Link: https://lore.kernel.org/r/1634738333-3916-1-git-send-email-quic_mkrishn@quicinc.com Signed-off-by: Rob Clark <robdclark@chromium.org>
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Krishna Manikandan
Rob Clark
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# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/display/msm/dpu-sc7280.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Qualcomm Display DPU dt properties for SC7280
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maintainers:
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- Krishna Manikandan <mkrishn@codeaurora.org>
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description: |
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Device tree bindings for MSM Mobile Display Subsystem (MDSS) that encapsulates
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sub-blocks like DPU display controller, DSI and DP interfaces etc. Device tree
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bindings of MDSS and DPU are mentioned for SC7280.
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properties:
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compatible:
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const: qcom,sc7280-mdss
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reg:
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maxItems: 1
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reg-names:
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const: mdss
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power-domains:
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maxItems: 1
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clocks:
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items:
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- description: Display AHB clock from gcc
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- description: Display AHB clock from dispcc
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- description: Display core clock
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clock-names:
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items:
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- const: iface
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- const: ahb
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- const: core
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interrupts:
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maxItems: 1
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interrupt-controller: true
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"#address-cells": true
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"#size-cells": true
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"#interrupt-cells":
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const: 1
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iommus:
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items:
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- description: Phandle to apps_smmu node with SID mask for Hard-Fail port0
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ranges: true
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interconnects:
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items:
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- description: Interconnect path specifying the port ids for data bus
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interconnect-names:
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const: mdp0-mem
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patternProperties:
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"^display-controller@[0-9a-f]+$":
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type: object
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description: Node containing the properties of DPU.
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properties:
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compatible:
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const: qcom,sc7280-dpu
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reg:
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items:
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- description: Address offset and size for mdp register set
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- description: Address offset and size for vbif register set
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reg-names:
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items:
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- const: mdp
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- const: vbif
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clocks:
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items:
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- description: Display hf axi clock
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- description: Display sf axi clock
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- description: Display ahb clock
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- description: Display lut clock
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- description: Display core clock
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- description: Display vsync clock
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clock-names:
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items:
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- const: bus
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- const: nrt_bus
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- const: iface
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- const: lut
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- const: core
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- const: vsync
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interrupts:
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maxItems: 1
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power-domains:
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maxItems: 1
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operating-points-v2: true
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ports:
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$ref: /schemas/graph.yaml#/properties/ports
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description: |
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Contains the list of output ports from DPU device. These ports
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connect to interfaces that are external to the DPU hardware,
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such as DSI, DP etc. Each output port contains an endpoint that
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describes how it is connected to an external interface.
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properties:
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port@0:
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$ref: /schemas/graph.yaml#/properties/port
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description: DPU_INTF1 (DSI)
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port@1:
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$ref: /schemas/graph.yaml#/properties/port
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description: DPU_INTF5 (EDP)
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required:
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- port@0
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required:
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- compatible
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- reg
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- reg-names
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- clocks
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- interrupts
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- power-domains
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- operating-points-v2
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- ports
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required:
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- compatible
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- reg
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- reg-names
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- power-domains
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- clocks
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- interrupts
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- interrupt-controller
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- iommus
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- ranges
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/clock/qcom,dispcc-sc7280.h>
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#include <dt-bindings/clock/qcom,gcc-sc7280.h>
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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#include <dt-bindings/interconnect/qcom,sc7280.h>
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#include <dt-bindings/power/qcom-rpmpd.h>
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display-subsystem@ae00000 {
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#address-cells = <1>;
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#size-cells = <1>;
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compatible = "qcom,sc7280-mdss";
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reg = <0xae00000 0x1000>;
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reg-names = "mdss";
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power-domains = <&dispcc DISP_CC_MDSS_CORE_GDSC>;
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clocks = <&gcc GCC_DISP_AHB_CLK>,
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<&dispcc DISP_CC_MDSS_AHB_CLK>,
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<&dispcc DISP_CC_MDSS_MDP_CLK>;
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clock-names = "iface",
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"ahb",
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"core";
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interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
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interrupt-controller;
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#interrupt-cells = <1>;
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interconnects = <&mmss_noc MASTER_MDP0 &mc_virt SLAVE_EBI1>;
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interconnect-names = "mdp0-mem";
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iommus = <&apps_smmu 0x900 0x402>;
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ranges;
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display-controller@ae01000 {
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compatible = "qcom,sc7280-dpu";
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reg = <0x0ae01000 0x8f000>,
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<0x0aeb0000 0x2008>;
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reg-names = "mdp", "vbif";
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clocks = <&gcc GCC_DISP_HF_AXI_CLK>,
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<&gcc GCC_DISP_SF_AXI_CLK>,
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<&dispcc DISP_CC_MDSS_AHB_CLK>,
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<&dispcc DISP_CC_MDSS_MDP_LUT_CLK>,
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<&dispcc DISP_CC_MDSS_MDP_CLK>,
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<&dispcc DISP_CC_MDSS_VSYNC_CLK>;
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clock-names = "bus",
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"nrt_bus",
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"iface",
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"lut",
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"core",
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"vsync";
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interrupt-parent = <&mdss>;
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interrupts = <0>;
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power-domains = <&rpmhpd SC7280_CX>;
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operating-points-v2 = <&mdp_opp_table>;
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ports {
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#address-cells = <1>;
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#size-cells = <0>;
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port@0 {
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reg = <0>;
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dpu_intf1_out: endpoint {
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remote-endpoint = <&dsi0_in>;
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};
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};
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port@1 {
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reg = <1>;
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dpu_intf5_out: endpoint {
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remote-endpoint = <&edp_in>;
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};
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};
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};
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};
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};
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...
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