MSM Mobile Display Subsytem(MDSS) encapsulates sub-blocks like DPU display controller, DSI etc. Add YAML schema for the device tree bindings for the same. Signed-off-by: Krishna Manikandan <mkrishn@xxxxxxxxxxxxxx> Changes in v2: - Changed dpu to DPU (Sam Ravnborg) - Fixed indentation issues (Sam Ravnborg) - Added empty line between different properties (Sam Ravnborg) - Replaced reference txt files with their corresponding yaml files (Sam Ravnborg) - Modified the file to use "|" only when it is necessary (Sam Ravnborg) --- .../bindings/display/msm/dpu-sc7180.yaml | 261 +++++++++++++++ .../bindings/display/msm/dpu-sdm845.yaml | 259 +++++++++++++++ .../bindings/display/msm/dsi-sc7180.yaml | 362 +++++++++++++++++++++ .../bindings/display/msm/dsi-sdm845.yaml | 362 +++++++++++++++++++++ 4 files changed, 1244 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/msm/dpu-sc7180.yaml create mode 100644 Documentation/devicetree/bindings/display/msm/dpu-sdm845.yaml create mode 100644 Documentation/devicetree/bindings/display/msm/dsi-sc7180.yaml create mode 100644 Documentation/devicetree/bindings/display/msm/dsi-sdm845.yaml diff --git a/Documentation/devicetree/bindings/display/msm/dpu-sc7180.yaml b/Documentation/devicetree/bindings/display/msm/dpu-sc7180.yaml new file mode 100644 index 0000000..2a9efc5 --- /dev/null +++ b/Documentation/devicetree/bindings/display/msm/dpu-sc7180.yaml @@ -0,0 +1,261 @@ +# SPDX-License-Identifier: GPL-2.0-only +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/msm/dpu-sc7180.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Description of Qualcomm Display DPU dt properties. + +maintainers: + - Krishna Manikandan <mkrishn@xxxxxxxxxxxxxx> + +description: | + Device tree bindings for MSM Mobile Display Subsytem(MDSS) that encapsulates + sub-blocks like DPU display controller, DSI and DP interfaces etc. Device tree + bindings of MDSS and DPU are mentioned for SC7180 target. + +properties: + "mdss": + type: object + description: | + Node containing MDSS that encapsulated sub-blocks like DPU, DSI and DP + interfaces. + + properties: + compatible: + items: + - const: qcom,sc7180-mdss + + reg: + description: Physical base address and length of controller's registers. + + reg-names: + description: | + Names for different register regions defined above. The required region + is mentioned below. + items: + - const: mdss + + power-domains: + description: | + A power domain consumer specifier according to + Documentation/devicetree/bindings/power/power-domain.yaml. + + clocks: + description: List of clock specifiers for clocks needed by the device. + + clock-names: + description: | + Device clock names in the same order as mentioned in clocks property. + The required clocks are mentioned below. + items: + - const: iface + - const: bus + - const: ahb + - const: core + + interrupts: + description: Interrupt signal from MDSS. + + interrupt-controller: + description: Identifies the node as an interrupt controller. + + "#interrupt-cells": + description: | + Specifies the number of cells needed to encode an interrupt source. + const: 1 + + iommus: + description: Phandle of iommu device node. + + "#address-cells": + description: | + Indicate how many cells (32 bits values) are needed to form the base + address part in the reg property. + + "#size-cells": + description: | + Indicate how many cells (32 bits values) are needed to specify the + size part in the reg property. + + ranges: + description: | + Parent bus address space is the same as the child bus address space. + + interconnects : + description: | + Interconnect path specifier for MDSS according to + Documentation/devicetree/bindings/interconnect/interconnect.txt. + Should be 2 paths corresponding to 2 AXI ports. + + interconnect-names: + description: | + MDSS will have 2 port names to differentiate between the + 2 interconnect paths defined with interconnect specifier. + + properties: + description: | + The optional properties for MDSS are mentioned below. + assigned-clocks: + description: | + List of clock specifiers for clocks needing rate assignment. + + assigned-clock-rates: + description: | + List of clock frequencies sorted in the same order as the + assigned-clocks property. + + "mdp": + type: object + description: Node containing the properties of DPU. + + properties: + compatible: + items: + - const: qcom,sc7180-dpu + + reg: + description: | + Physical base address and length of controller's registers. + + reg-names: + description: | + Register region names. The following regions are required. + items: + - const: mdp + - const: vbif + + clocks: + description: | + List of clock specifiers for clocks needed by the device. + + clock-names: + description: | + Device clock names, must be in same order as clocks property. + The following clocks are required. "bus" is an optional property + in sc7180 due to architecture change. + items: + - const: iface + - const: core + - const: vsync + + interrupts: + description: Interrupt line from DPU to MDSS. + + ports: + type: object + description: | + Contains the list of output ports from DPU device. These ports + connect to interfaces that are external to the DPU hardware, + such as DSI, DP etc. Each output port contains an endpoint that + describes how it is connected to an external interface. These + are described by the standard properties documented in files + mentioned below. + + Documentation/devicetree/bindings/graph.txt + Documentation/devicetree/bindings/media/video-interfaces.txt + + properties: + port0: + type: object + description: DPU_INTF1 (DSI1) + port1: + type: object + description: DPU_INTF2 (DSI2) + + properties: + description: | + The optional properties for DPU are mentioned below. + assigned-clocks: + description: | + List of clock specifiers for clocks needing rate assignment. + + assigned-clock-rates: + description: | + List of clock frequencies sorted in the same order as the + assigned-clocks property. + + clock-names: + description: | + Optional device clocks, needed for accessing LUT blocks. + items: + - const: rot + - const: lut + +required: + - compatible + - reg + - reg-names + - power-domains + - clocks + - clock-names + - interrupts + - interrupt-controller + - iommus + - ports + +examples: + - | + #include <dt-bindings/clock/qcom,dispcc-sc7180.h> + #include <dt-bindings/clock/qcom,gcc-sc7180.h> + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/interconnect/qcom,sdm845.h> + mdss: mdss@ae00000 { + compatible = "qcom,sc7180-mdss"; + reg = <0xae00000 0x1000>; + reg-names = "mdss"; + power-domains = <&clock_dispcc 0>; + clocks = <&gcc GCC_DISP_AHB_CLK>, + <&gcc GCC_DISP_HF_AXI_CLK>, + <&dispcc DISP_CC_MDSS_MDP_CLK>; + clock-names = "iface", "gcc_bus", "core"; + assigned-clocks = <&dispcc DISP_CC_MDSS_MDP_CLK>; + assigned-clock-rates = <300000000>; + + interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>; + interrupt-controller; + #interrupt-cells = <1>; + + interconnects = <&mmss_noc MASTER_MDP0 &mc_virt SLAVE_EBI1>; + + interconnect-names = "mdp0-mem"; + + iommus = <&apps_smmu 0x800 0x2>; + + #address-cells = <2>; + #size-cells = <2>; + + mdss_mdp: mdp@ae01000 { + compatible = "qcom,sc7180-dpu"; + reg = <0 0x0ae01000 0 0x8f000>, + <0 0x0aeb0000 0 0x2008>, + <0 0x0af03000 0 0x16>; + reg-names = "mdp", "vbif", "disp_cc"; + + clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>, + <&dispcc DISP_CC_MDSS_ROT_CLK>, + <&dispcc DISP_CC_MDSS_MDP_LUT_CLK>, + <&dispcc DISP_CC_MDSS_MDP_CLK>, + <&dispcc DISP_CC_MDSS_VSYNC_CLK>; + clock-names = "iface", "rot", "lut", "core", + "vsync"; + assigned-clocks = <&dispcc DISP_CC_MDSS_MDP_CLK>, + <&dispcc DISP_CC_MDSS_VSYNC_CLK>; + assigned-clock-rates = <300000000>, <19200000>; + interrupt-parent = <&mdss>; + interrupts = <0 IRQ_TYPE_LEVEL_HIGH>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + dpu_intf1_out: endpoint { + remote-endpoint = <&dsi0_in>; + }; + }; + }; + }; + }; +... diff --git a/Documentation/devicetree/bindings/display/msm/dpu-sdm845.yaml b/Documentation/devicetree/bindings/display/msm/dpu-sdm845.yaml new file mode 100644 index 0000000..bb975938 --- /dev/null +++ b/Documentation/devicetree/bindings/display/msm/dpu-sdm845.yaml @@ -0,0 +1,259 @@ +# SPDX-License-Identifier: GPL-2.0-only +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/msm/dpu-sdm845.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Description of Qualcomm Display DPU dt properties. + +maintainers: + - Krishna Manikandan <mkrishn@xxxxxxxxxxxxxx> + +description: | + Device tree bindings for MSM Mobile Display Subsytem(MDSS) that encapsulates + sub-blocks like DPU display controller, DSI and DP interfaces etc. Device tree + bindings of MDSS and DPU are mentioned for SDM845 target. + +properties: + "mdss": + type: object + description: | + Node containing MDSS that encapsulated sub-blocks like DPU, DSI and DP + interfaces. + + properties: + compatible: + items: + - const: qcom,sdm845-mdss + + reg: + description: Physical base address and length of controller's registers. + + reg-names: + description: | + Names for different register regions defined above. The required region + is mentioned below. + items: + - const: mdss + + power-domains: + description: | + A power domain consumer specifier according to + Documentation/devicetree/bindings/power/power-domain.yaml. + + clocks: + description: List of clock specifiers for clocks needed by the device. + + clock-names: + description: | + Device clock names in the same order as mentioned in clocks property. + The required clocks are mentioned below. + items: + - const: iface + - const: bus + - const: core + + interrupts: + description: Interrupt signal from MDSS. + + interrupt-controller: + description: Identifies the node as an interrupt controller. + + "#interrupt-cells": + description: | + Specifies the number of cells needed to encode an interrupt source. + const: 1 + + iommus: + description: Phandle of iommu device node. + + "#address-cells": + description: | + Indicate how many cells (32 bits values) are needed to form the base + address part in the reg property. + + "#size-cells": + description: | + Indicate how many cells (32 bits values) are needed to specify the + size part in the reg property. + + ranges: + description: | + Parent bus address space is the same as the child bus address space. + + interconnects : + description: | + Interconnect path specifier for MDSS according to + Documentation/devicetree/bindings/interconnect/interconnect.txt. + Should be 2 paths corresponding to 2 AXI ports. + + interconnect-names: + description: | + MDSS will have 2 port names to differentiate between the + 2 interconnect paths defined with interconnect specifier. + + properties: + description: | + The optional properties for MDSS are mentioned below. + assigned-clocks: + description: | + List of clock specifiers for clocks needing rate assignment. + + assigned-clock-rates: + description: | + List of clock frequencies sorted in the same order as the + assigned-clocks property. + + "mdp": + type: object + description: Node containing the properties of DPU. + + properties: + compatible: + items: + - const: qcom,sc7180-dpu + + reg: + description: | + Physical base address and length of controller's registers. + + reg-names: + description: | + Register region names. The following regions are required. + items: + - const: mdp + - const: vbif + + clocks: + description: | + List of clock specifiers for clocks needed by the device. + + clock-names: + description: | + Device clock names, must be in same order as clocks property. + The following clocks are required. + items: + - const: bus + - const: iface + - const: core + - const: vsync + + interrupts: + description: Interrupt line from DPU to MDSS. + + ports: + type: object + description: | + Contains the list of output ports from DPU device. These ports + connect to interfaces that are external to the DPU hardware, + such as DSI, DP etc. Each output port contains an endpoint that + describes how it is connected to an external interface. These + are described by the standard properties documented in files + mentioned below. + + Documentation/devicetree/bindings/graph.txt + Documentation/devicetree/bindings/media/video-interfaces.txt + + properties: + port0: + type: object + description: DPU_INTF1 (DSI1) + port1: + type: object + description: DPU_INTF2 (DSI2) + + properties: + description: | + The optional properties for DPU are mentioned below. + assigned-clocks: + description: | + List of clock specifiers for clocks needing rate assignment. + + assigned-clock-rates: + description: | + List of clock frequencies sorted in the same order as the + assigned-clocks property. + + +required: + - compatible + - reg + - reg-names + - power-domains + - clocks + - clock-names + - interrupts + - interrupt-controller + - iommus + - ports + +examples: +- | + #include <dt-bindings/clock/qcom,dispcc-sdm845.h> + #include <dt-bindings/clock/qcom,gcc-sdm845.h> + #include <dt-bindings/interrupt-controller/arm-gic.h> + mdss: mdss@ae00000 { + compatible = "qcom,sdm845-mdss"; + reg = <0 0x0ae00000 0 0x1000>; + reg-names = "mdss"; + power-domains = <&dispcc MDSS_GDSC>; + + clocks = <&gcc GCC_DISP_AHB_CLK>, + <&gcc GCC_DISP_AXI_CLK>, + <&dispcc DISP_CC_MDSS_MDP_CLK>; + clock-names = "iface", "bus", "core"; + + assigned-clocks = <&dispcc DISP_CC_MDSS_MDP_CLK>; + assigned-clock-rates = <300000000>; + + interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>; + interrupt-controller; + #interrupt-cells = <1>; + + iommus = <&apps_smmu 0x880 0x8>, + <&apps_smmu 0xc80 0x8>; + + #address-cells = <2>; + #size-cells = <2>; + + mdss_mdp: mdp@ae01000 { + compatible = "qcom,sdm845-dpu"; + reg = <0 0x0ae01000 0 0x8f000>, + <0 0x0aeb0000 0 0x2008>; + reg-names = "mdp", "vbif"; + + clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>, + <&dispcc DISP_CC_MDSS_AXI_CLK>, + <&dispcc DISP_CC_MDSS_MDP_CLK>, + <&dispcc DISP_CC_MDSS_VSYNC_CLK>; + clock-names = "iface", "bus", "core", "vsync"; + + assigned-clocks = <&dispcc DISP_CC_MDSS_MDP_CLK>, + <&dispcc DISP_CC_MDSS_VSYNC_CLK>; + assigned-clock-rates = <300000000>, + <19200000>; + + interrupt-parent = <&mdss>; + interrupts = <0 IRQ_TYPE_LEVEL_HIGH>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + dpu_intf1_out: endpoint { + remote-endpoint = <&dsi0_in>; + }; + }; + + port@1 { + reg = <1>; + dpu_intf2_out: endpoint { + remote-endpoint = <&dsi1_in>; + }; + }; + }; + }; + }; +... diff --git a/Documentation/devicetree/bindings/display/msm/dsi-sc7180.yaml b/Documentation/devicetree/bindings/display/msm/dsi-sc7180.yaml new file mode 100644 index 0000000..4727205 --- /dev/null +++ b/Documentation/devicetree/bindings/display/msm/dsi-sc7180.yaml @@ -0,0 +1,362 @@ +# SPDX-License-Identifier: GPL-2.0-only +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/msm/dsi-sc7180.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Description of Qualcomm Display DSI interface dt properties. + +maintainers: + - Krishna Manikandan <mkrishn@xxxxxxxxxxxxxx> + +description: | + Device tree bindings for DSI controller and DSI PHY for SC7180 target. + +properties: + "dsi-controller": + type: object + description: Node containing the properties of DSI controller. + + properties: + compatible: + items: + - const: qcom,mdss-dsi-ctrl + + reg: + description: Physical base address and length of registers of controller. + + reg-names: + description: | + Names for different register regions defined above. The required region + is mentioned below. + items: + - const: dsi_ctrl + + clocks: + description: Phandles to device clocks. + + clock-names: + description: | + Device clock names in the same order as mentioned in clocks property. + The required clocks are mentioned below. For DSIv2, we need an + additional clock "src" and for DSI6G v2.0 onwards we need + "byte_intf" clock. + items: + - const: iface + - const: bus + - const: byte + - const: pixel + - const: core + + assigned-clocks: + description: Parents of "byte" and "pixel" for the given platform. + + assigned-clock-parents: + description: | + The Byte clock and Pixel clock PLL outputs provided by a DSI PHY block. + Details on clock bindings are mentioned in + Documentation/devicetree/bindings/clock/clock-bindings.txt. + + vdd-supply: + description: Phandle to vdd regulator device node. + + vddio-supply: + description: Phandle to vdd-io regulator device node. + + vdda-supply: + description: Phandle to vdda regulator device node. + + phys: + description: Phandle to DSI PHY device node. + + phy-names: + description: Name of the corresponding PHY device. + + syscon-sfpb: + description: A phandle to mmss_sfpb syscon node (only for DSIv2). + + ports: + description: | + Contains 2 DSI controller ports as child nodes. Each port contains + an endpoint subnode as defined in + Documentation/devicetree/bindings/graph.txt and + Documentation/devicetree/bindings/media/video-interfaces.txt. + + properties: + description: | + The optional properties for DSI controller are mentioned below. + + panel@0: + description: | + Node of panel connected to this DSI controller. + See files in Documentation/devicetree/bindings/display/panel/ + for each supported panel. + + qcom,dual-dsi-mode: + description: | + Boolean value indicating if the DSI controller is + driving a panel which needs 2 DSI links. + + qcom,master-dsi: + description: | + Boolean value indicating if the DSI controller is driving + the master link of the 2-DSI panel. + + qcom,sync-dual-dsi: + description: | + Boolean value indicating if the DSI controller is driving a + 2-DSI panel whose 2 links need receive command simultaneously. + + pinctrl-names: + description: The pin control state names; should contain "default" + + pinctrl-0: + description: The default pinctrl state (active) + + pinctrl-n: + description: The "sleep" pinctrl state + + ports: + description: | + Contains DSI controller input and output ports as children, each + containing one endpoint subnode. + + properties: + description: DSI Endpoint properties + + remote-endpoint: + description: | + For port@0, set to phandle of the connected panel/bridge's + input endpoint. For port@1, set to the MDP interface output. + See Documentation/devicetree/bindings/graph.txt for + device graph info. + + data-lanes: + description: | + This describes how the physical DSI data lanes are mapped + to the logical lanes on the given platform. The value contained in + index n describes what physical lane is mapped to the logical lane n + (DATAn, where n lies between 0 and 3). The clock lane position is fixed + and can't be changed. Hence, they aren't a part of the DT bindings. See + Documentation/devicetree/bindings/media/video-interfaces.txt for + more info on the data-lanes property. + + For example: + + data-lanes = <3 0 1 2>; + + The above mapping describes that the logical data lane DATA0 is mapped + to the physical data lane DATA3, logical DATA1 to physical DATA0, + logic DATA2 to phys DATA1 and logic DATA3 to phys DATA2. There are + only a limited number of physical to logical mappings possible. + oneOf: + - const: <0 1 2 3> + - const: <1 2 3 0> + - const: <2 3 0 1> + - const: <3 0 1 2> + - const: <0 3 2 1> + - const: <1 0 3 2> + - const: <2 1 0 3> + - const: <3 2 1 0> + + qcom,mdss-mdp-transfer-time-us: + description: | + Specifies the DSI transfer time for command mode + panels in microseconds. Driver uses this number to adjust + the clock rate according to the expected transfer time. + Increasing this value would slow down the mdp processing + and can result in slower performance. + Decreasing this value can speed up the mdp processing, + but this can also impact power consumption. + As a rule this time should not be higher than the time + that would be expected with the processing at the + DSI link rate since anyways this would be the maximum + transfer time that could be achieved. + If ping pong split is enabled, this time should not be higher + than two times the DSI link rate time. + If the property is not specified, then the default value is + 14000 us. This is an optional property. + + "dsi_phy": + type: object + description: Node containing the properties of DSI PHY + + properties: + compatible: + oneOf: + - const: qcom,dsi-phy-28nm-hpm + - const: qcom,dsi-phy-28nm-lp + - const: qcom,dsi-phy-20nm + - const: qcom,dsi-phy-28nm-8960 + - const: qcom,dsi-phy-14nm + - const: qcom,dsi-phy-10nm + - const: qcom,dsi-phy-10nm-8998 + + reg: + description: | + Physical base address and length of the registers of PLL, PHY. Some + revisions require the PHY regulator base address, whereas others + require the PHY lane base address. See below for each PHY revision. + + reg-names: + description: Name of register regions. + oneOf: + - description: | + Following regions are required for DSI 28nm HPM/LP/8960 PHYs and + 20nm PHY. + items: + - const: dsi_pll + - const: dsi_phy + - const: dsi_phy_regulator + + - description: | + Following regions are required for DSI 14nm and 10nm PHYs: + items: + - const: dsi_pll + - const: dsi_phy + - const: dsi_phy_lane + + clock-cells: + description: | + The DSI PHY block acts as a clock provider, creating + 2 clocks: A byte clock (index 0), and a pixel clock (index 1). + const: 1 + + power-domains: + description: Should be <&mmcc MDSS_GDSC>. + + clocks: + description: | + Phandles to device clocks. See + Documentation/devicetree/bindings/clock/clock-bindings.txt + for details on clock bindings. + + clock-names: + description: | + The following clocks are required. + "iface" + "ref" (only required for new DTS files/entries) + + vddio-supply: + description: | + Phandle to vdd-io regulator device node. Required for 28nm HPM/LP, + 28nm 8960 PHYs and 20nm PHY. + + vcca-supply: + description: | + Phandle to vcca regulator device node. Required for 20nm PHY and + 10nm PHY. + + vdds-supply: + description: | + Phandle to vdds regulator device node. Required for 10nm PHY. + + properties: + description: | + The optional properties for DSI PHY are mentioned below. + + qcom,dsi-phy-regulator-ldo-mode: + description: | + Boolean value indicating if the LDO mode PHY regulator is wanted. + +examples: + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/clock/qcom,dispcc-sc7180.h> + #include <dt-bindings/clock/qcom,gcc-sc7180.h> + + dsi0: dsi@fd922800 { + compatible = "qcom,mdss-dsi-ctrl"; + qcom,dsi-host-index = <0>; + interrupt-parent = <&mdp>; + interrupts = <4 0>; + reg-names = "dsi_ctrl"; + reg = <0xfd922800 0x200>; + power-domains = <&mmcc MDSS_GDSC>; + + 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>; + clock-names = "byte", + "byte_intf", + "pixel", + "core", + "iface", + "bus"; + assigned-clocks = <&dispcc DISP_CC_MDSS_BYTE0_CLK_SRC>, + <&dispcc DISP_CC_MDSS_PCLK0_CLK_SRC>; + assigned-clock-parents = <&dsi_phy0 0>, + <&dsi_phy0 1>; + + vdda-supply = <&pma8084_l2>; + vdd-supply = <&pma8084_l22>; + vddio-supply = <&pma8084_l12>; + + phys = <&dsi_phy0>; + phy-names ="dsi-phy"; + + qcom,dual-dsi-mode; + qcom,master-dsi; + qcom,sync-dual-dsi; + + qcom,mdss-mdp-transfer-time-us = <12000>; + + pinctrl-names = "default", "sleep"; + pinctrl-0 = <&dsi_active>; + pinctrl-1 = <&dsi_suspend>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + dsi0_in: endpoint { + remote-endpoint = <&mdp_intf1_out>; + }; + }; + + port@1 { + reg = <1>; + dsi0_out: endpoint { + remote-endpoint = <&panel_in>; + data-lanes = <0 1 2 3>; + }; + }; + }; + + panel: panel@0 { + compatible = "sharp,lq101r1sx01"; + link2 = <&secondary>; + + port { + panel_in: endpoint { + remote-endpoint = <&dsi0_out>; + }; + }; + }; + }; + + dsi_phy0: dsi-phy@fd922a00 { + compatible = "qcom,dsi-phy-28nm-hpm"; + qcom,dsi-phy-index = <0>; + reg-names = + "dsi_pll", + "dsi_phy", + "dsi_phy_regulator"; + reg = <0xfd922a00 0xd4>, + <0xfd922b00 0x2b0>, + <0xfd922d80 0x7b>; + clock-names = "iface"; + clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>; + #clock-cells = <1>; + #phy-cells = <0>; + vddio-supply = <&pma8084_l12>; + + qcom,dsi-phy-regulator-ldo-mode; + }; +... + diff --git a/Documentation/devicetree/bindings/display/msm/dsi-sdm845.yaml b/Documentation/devicetree/bindings/display/msm/dsi-sdm845.yaml new file mode 100644 index 0000000..e494a7f --- /dev/null +++ b/Documentation/devicetree/bindings/display/msm/dsi-sdm845.yaml @@ -0,0 +1,362 @@ +# SPDX-License-Identifier: GPL-2.0-only +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/msm/dsi-sdm845.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Description of Qualcomm Display DSI interface dt properties. + +maintainers: + - Krishna Manikandan <mkrishn@xxxxxxxxxxxxxx> + +description: | + Device tree bindings for DSI controller and DSI PHY for SDM845 target. + +properties: + "dsi-controller": + type: object + description: Node containing the properties of DSI controller. + + properties: + compatible: + items: + - const: qcom,mdss-dsi-ctrl + + reg: + description: Physical base address and length of registers of controller. + + reg-names: + description: | + Names for different register regions defined above. The required region + is mentioned below. + items: + - const: dsi_ctrl + + clocks: + description: Phandles to device clocks. + + clock-names: + description: | + Device clock names in the same order as mentioned in clocks property. + The required clocks are mentioned below. For DSIv2, we need an + additional clock "src" and for DSI6G v2.0 onwards we need + "byte_intf" clock. + items: + - const: iface + - const: bus + - const: byte + - const: pixel + - const: core + + assigned-clocks: + description: Parents of "byte" and "pixel" for the given platform. + + assigned-clock-parents: + description: | + The Byte clock and Pixel clock PLL outputs provided by a DSI PHY block. + Details on clock bindings are mentioned in + Documentation/devicetree/bindings/clock/clock-bindings.txt. + + vdd-supply: + description: Phandle to vdd regulator device node. + + vddio-supply: + description: Phandle to vdd-io regulator device node. + + vdda-supply: + description: Phandle to vdda regulator device node. + + phys: + description: Phandle to DSI PHY device node. + + phy-names: + description: Name of the corresponding PHY device. + + syscon-sfpb: + description: A phandle to mmss_sfpb syscon node (only for DSIv2). + + ports: + description: | + Contains 2 DSI controller ports as child nodes. Each port contains + an endpoint subnode as defined in + Documentation/devicetree/bindings/graph.txt and + Documentation/devicetree/bindings/media/video-interfaces.txt. + + properties: + description: | + The optional properties for DSI controller are mentioned below. + + panel@0: + description: | + Node of panel connected to this DSI controller. + See files in Documentation/devicetree/bindings/display/panel/ + for each supported panel. + + qcom,dual-dsi-mode: + description: | + Boolean value indicating if the DSI controller is + driving a panel which needs 2 DSI links. + + qcom,master-dsi: + description: | + Boolean value indicating if the DSI controller is driving + the master link of the 2-DSI panel. + + qcom,sync-dual-dsi: + description: | + Boolean value indicating if the DSI controller is driving a + 2-DSI panel whose 2 links need receive command simultaneously. + + pinctrl-names: + description: The pin control state names; should contain "default" + + pinctrl-0: + description: The default pinctrl state (active) + + pinctrl-n: + description: The "sleep" pinctrl state + + ports: + description: | + Contains DSI controller input and output ports as children, each + containing one endpoint subnode. + + properties: + description: DSI Endpoint properties + + remote-endpoint: + description: | + For port@0, set to phandle of the connected panel/bridge's + input endpoint. For port@1, set to the MDP interface output. + See Documentation/devicetree/bindings/graph.txt for + device graph info. + + data-lanes: + description: | + This describes how the physical DSI data lanes are mapped + to the logical lanes on the given platform. The value contained in + index n describes what physical lane is mapped to the logical lane n + (DATAn, where n lies between 0 and 3). The clock lane position is fixed + and can't be changed. Hence, they aren't a part of the DT bindings. See + Documentation/devicetree/bindings/media/video-interfaces.txt for + more info on the data-lanes property. + + For example: + + data-lanes = <3 0 1 2>; + + The above mapping describes that the logical data lane DATA0 is mapped + to the physical data lane DATA3, logical DATA1 to physical DATA0, + logic DATA2 to phys DATA1 and logic DATA3 to phys DATA2. There are + only a limited number of physical to logical mappings possible. + oneOf: + - const: <0 1 2 3> + - const: <1 2 3 0> + - const: <2 3 0 1> + - const: <3 0 1 2> + - const: <0 3 2 1> + - const: <1 0 3 2> + - const: <2 1 0 3> + - const: <3 2 1 0> + + qcom,mdss-mdp-transfer-time-us: + description: | + Specifies the DSI transfer time for command mode + panels in microseconds. Driver uses this number to adjust + the clock rate according to the expected transfer time. + Increasing this value would slow down the mdp processing + and can result in slower performance. + Decreasing this value can speed up the mdp processing, + but this can also impact power consumption. + As a rule this time should not be higher than the time + that would be expected with the processing at the + DSI link rate since anyways this would be the maximum + transfer time that could be achieved. + If ping pong split is enabled, this time should not be higher + than two times the DSI link rate time. + If the property is not specified, then the default value is + 14000 us. This is an optional property. + + "dsi_phy": + type: object + description: Node containing the properties of DSI PHY + + properties: + compatible: + oneOf: + - const: qcom,dsi-phy-28nm-hpm + - const: qcom,dsi-phy-28nm-lp + - const: qcom,dsi-phy-20nm + - const: qcom,dsi-phy-28nm-8960 + - const: qcom,dsi-phy-14nm + - const: qcom,dsi-phy-10nm + - const: qcom,dsi-phy-10nm-8998 + + reg: + description: | + Physical base address and length of the registers of PLL, PHY. Some + revisions require the PHY regulator base address, whereas others + require the PHY lane base address. See below for each PHY revision. + + reg-names: + description: Name of register regions. + oneOf: + - description: | + Following regions are required for DSI 28nm HPM/LP/8960 PHYs and + 20nm PHY. + items: + - const: dsi_pll + - const: dsi_phy + - const: dsi_phy_regulator + + - description: | + Following regions are required for DSI 14nm and 10nm PHYs: + items: + - const: dsi_pll + - const: dsi_phy + - const: dsi_phy_lane + + clock-cells: + description: | + The DSI PHY block acts as a clock provider, creating + 2 clocks: A byte clock (index 0), and a pixel clock (index 1). + const: 1 + + power-domains: + description: Should be <&mmcc MDSS_GDSC>. + + clocks: + description: | + Phandles to device clocks. See + Documentation/devicetree/bindings/clock/clock-bindings.txt + for details on clock bindings. + + clock-names: + description: | + The following clocks are required. + "iface" + "ref" (only required for new DTS files/entries) + + vddio-supply: + description: | + Phandle to vdd-io regulator device node. Required for 28nm HPM/LP, + 28nm 8960 PHYs and 20nm PHY. + + vcca-supply: + description: | + Phandle to vcca regulator device node. Required for 20nm PHY and + 10nm PHY. + + vdds-supply: + description: | + Phandle to vdds regulator device node. Required for 10nm PHY. + + properties: + description: | + The optional properties for DSI PHY are mentioned below. + + qcom,dsi-phy-regulator-ldo-mode: + description: | + Boolean value indicating if the LDO mode PHY regulator is wanted. + +examples: + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/clock/qcom,dispcc-sdm845.h> + #include <dt-bindings/clock/qcom,gcc-sdm845.h> + + dsi0: dsi@fd922800 { + compatible = "qcom,mdss-dsi-ctrl"; + qcom,dsi-host-index = <0>; + interrupt-parent = <&mdp>; + interrupts = <4 0>; + reg-names = "dsi_ctrl"; + reg = <0xfd922800 0x200>; + power-domains = <&mmcc MDSS_GDSC>; + + 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>, + <&dispcc DISP_CC_MDSS_AXI_CLK>; + clock-names = "byte", + "byte_intf", + "pixel", + "core", + "iface", + "bus"; + assigned-clocks = <&dispcc DISP_CC_MDSS_BYTE0_CLK_SRC>, + <&dispcc DISP_CC_MDSS_PCLK0_CLK_SRC>; + assigned-clock-parents = <&dsi_phy0 0>, + <&dsi_phy0 1>; + + vdda-supply = <&pma8084_l2>; + vdd-supply = <&pma8084_l22>; + vddio-supply = <&pma8084_l12>; + + phys = <&dsi_phy0>; + phy-names ="dsi-phy"; + + qcom,dual-dsi-mode; + qcom,master-dsi; + qcom,sync-dual-dsi; + + qcom,mdss-mdp-transfer-time-us = <12000>; + + pinctrl-names = "default", "sleep"; + pinctrl-0 = <&dsi_active>; + pinctrl-1 = <&dsi_suspend>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + dsi0_in: endpoint { + remote-endpoint = <&mdp_intf1_out>; + }; + }; + + port@1 { + reg = <1>; + dsi0_out: endpoint { + remote-endpoint = <&panel_in>; + data-lanes = <0 1 2 3>; + }; + }; + }; + + panel: panel@0 { + compatible = "sharp,lq101r1sx01"; + link2 = <&secondary>; + + port { + panel_in: endpoint { + remote-endpoint = <&dsi0_out>; + }; + }; + }; + }; + + dsi_phy0: dsi-phy@fd922a00 { + compatible = "qcom,dsi-phy-28nm-hpm"; + qcom,dsi-phy-index = <0>; + reg-names = + "dsi_pll", + "dsi_phy", + "dsi_phy_regulator"; + reg = <0xfd922a00 0xd4>, + <0xfd922b00 0x2b0>, + <0xfd922d80 0x7b>; + clock-names = "iface"; + clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>; + #clock-cells = <1>; + #phy-cells = <0>; + vddio-supply = <&pma8084_l12>; + + qcom,dsi-phy-regulator-ldo-mode; + }; +... + -- 1.9.1
