From f5408b21e356f2b57efcb3e2dbb5a344a20d11ae Mon Sep 17 00:00:00 2001 From: Bjorn Andersson Date: Mon, 27 Dec 2021 20:59:34 -0800 Subject: drm/msm/dp: Add DisplayPort controller for SM8350 The Qualcomm SM8350 platform comes with a single DisplayPort controller, add support for this in the DisplayPort driver. Signed-off-by: Bjorn Andersson Acked-by: Rob Herring Reviewed-by: Dmitry Baryshkov Link: https://lore.kernel.org/r/20211228045934.1524865-1-bjorn.andersson@linaro.org Signed-off-by: Dmitry Baryshkov --- Documentation/devicetree/bindings/display/msm/dp-controller.yaml | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml index 5457612ab136..cd05cfd76536 100644 --- a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml +++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml @@ -21,6 +21,7 @@ properties: - qcom,sc7280-edp - qcom,sc8180x-dp - qcom,sc8180x-edp + - qcom,sm8350-dp reg: items: -- cgit v1.2.3 From 3bcf3d8341080a7f79d8566aeadbd3c911391cfe Mon Sep 17 00:00:00 2001 From: Rajeev Nandan Date: Mon, 31 Jan 2022 01:45:17 +0530 Subject: dt-bindings: msm/dsi: Add 10nm dsi phy tuning properties In most cases, the default values of DSI PHY tuning registers should be sufficient as they are fully optimized. However, in some cases where extreme board parasitics cause the eye shape to degrade, the override bits can be used to improve the signal quality. The general guidelines for DSI PHY tuning include: - High and moderate data rates may benefit from the drive strength and drive level tuning. - Drive strength tuning will affect the output impedance and may be used for matching optimization. - Drive level tuning will affect the output levels without affecting the impedance. The clock and data lanes have a calibration circuitry feature. The drive strength tuning can be done by adjusting rescode offset for hstop/hsbot, and the drive level tuning can be done by adjusting the LDO output level for the HSTX drive. Signed-off-by: Rajeev Nandan Reviewed-by: Rob Herring Link: https://lore.kernel.org/r/1643573719-32095-2-git-send-email-quic_rajeevny@quicinc.com Signed-off-by: Dmitry Baryshkov --- .../bindings/display/msm/dsi-phy-10nm.yaml | 36 ++++++++++++++++++++++ 1 file changed, 36 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml b/Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml index 4399715953e1..2d5a766d028f 100644 --- a/Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml +++ b/Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml @@ -35,6 +35,38 @@ properties: Connected to DSI0_MIPI_DSI_PLL_VDDA0P9 pin for sc7180 target and connected to VDDA_MIPI_DSI_0_PLL_0P9 pin for sdm845 target + qcom,phy-rescode-offset-top: + $ref: /schemas/types.yaml#/definitions/int8-array + minItems: 5 + maxItems: 5 + description: + Integer array of offset for pull-up legs rescode for all five lanes. + To offset the drive strength from the calibrated value in an increasing + manner, -32 is the weakest and +31 is the strongest. + items: + minimum: -32 + maximum: 31 + + qcom,phy-rescode-offset-bot: + $ref: /schemas/types.yaml#/definitions/int8-array + minItems: 5 + maxItems: 5 + description: + Integer array of offset for pull-down legs rescode for all five lanes. + To offset the drive strength from the calibrated value in a decreasing + manner, -32 is the weakest and +31 is the strongest. + items: + minimum: -32 + maximum: 31 + + qcom,phy-drive-ldo-level: + $ref: "/schemas/types.yaml#/definitions/uint32" + description: + The PHY LDO has an amplitude tuning feature to adjust the LDO output + for the HSTX drive. Use supported levels (mV) to offset the drive level + from the default value. + enum: [ 375, 400, 425, 450, 475, 500 ] + required: - compatible - reg @@ -64,5 +96,9 @@ examples: clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>, <&rpmhcc RPMH_CXO_CLK>; clock-names = "iface", "ref"; + + qcom,phy-rescode-offset-top = /bits/ 8 <0 0 0 0 0>; + qcom,phy-rescode-offset-bot = /bits/ 8 <0 0 0 0 0>; + qcom,phy-drive-ldo-level = <400>; }; ... -- cgit v1.2.3 From 6e986a8f1cf15810be49e439acbc4a1499dd64b7 Mon Sep 17 00:00:00 2001 From: AngeloGioacchino Del Regno Date: Thu, 13 Jan 2022 16:51:11 +0200 Subject: dt-bindings: display: msm: Add binding for msm8998 dpu Add yaml binding for msm8998 dpu1 support. Signed-off-by: AngeloGioacchino Del Regno Signed-off-by: Jami Kettunen Reviewed-by: Rob Herring Link: https://lore.kernel.org/r/20220113145111.29984-4-jami.kettunen@somainline.org Signed-off-by: Dmitry Baryshkov --- .../bindings/display/msm/dpu-msm8998.yaml | 219 +++++++++++++++++++++ 1 file changed, 219 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/msm/dpu-msm8998.yaml (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/display/msm/dpu-msm8998.yaml b/Documentation/devicetree/bindings/display/msm/dpu-msm8998.yaml new file mode 100644 index 000000000000..167bc48748d7 --- /dev/null +++ b/Documentation/devicetree/bindings/display/msm/dpu-msm8998.yaml @@ -0,0 +1,219 @@ +# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/msm/dpu-msm8998.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm Display DPU dt properties for MSM8998 target + +maintainers: + - AngeloGioacchino Del Regno + +description: | + Device tree bindings for MSM Mobile Display Subsystem(MDSS) that encapsulates + sub-blocks like DPU display controller, DSI and DP interfaces etc. Device tree + bindings of MDSS and DPU are mentioned for MSM8998 target. + +properties: + compatible: + items: + - const: qcom,msm8998-mdss + + reg: + maxItems: 1 + + reg-names: + const: mdss + + power-domains: + maxItems: 1 + + clocks: + items: + - description: Display AHB clock + - description: Display AXI clock + - description: Display core clock + + clock-names: + items: + - const: iface + - const: bus + - const: core + + interrupts: + maxItems: 1 + + interrupt-controller: true + + "#address-cells": true + + "#size-cells": true + + "#interrupt-cells": + const: 1 + + iommus: + items: + - description: Phandle to apps_smmu node with SID mask for Hard-Fail port0 + + ranges: true + +patternProperties: + "^display-controller@[0-9a-f]+$": + type: object + description: Node containing the properties of DPU. + + properties: + compatible: + items: + - const: qcom,msm8998-dpu + + reg: + items: + - description: Address offset and size for mdp register set + - description: Address offset and size for regdma register set + - description: Address offset and size for vbif register set + - description: Address offset and size for non-realtime vbif register set + + reg-names: + items: + - const: mdp + - const: regdma + - const: vbif + - const: vbif_nrt + + clocks: + items: + - description: Display ahb clock + - description: Display axi clock + - description: Display mem-noc clock + - description: Display core clock + - description: Display vsync clock + + clock-names: + items: + - const: iface + - const: bus + - const: mnoc + - const: core + - const: vsync + + interrupts: + maxItems: 1 + + power-domains: + maxItems: 1 + + operating-points-v2: true + ports: + $ref: /schemas/graph.yaml#/properties/ports + 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. + + properties: + port@0: + $ref: /schemas/graph.yaml#/properties/port + description: DPU_INTF1 (DSI1) + + port@1: + $ref: /schemas/graph.yaml#/properties/port + description: DPU_INTF2 (DSI2) + + required: + - port@0 + - port@1 + + required: + - compatible + - reg + - reg-names + - clocks + - interrupts + - power-domains + - operating-points-v2 + - ports + +required: + - compatible + - reg + - reg-names + - power-domains + - clocks + - interrupts + - interrupt-controller + - iommus + - ranges + +additionalProperties: false + +examples: + - | + #include + #include + #include + + display-subsystem@c900000 { + compatible = "qcom,msm8998-mdss"; + reg = <0x0c900000 0x1000>; + reg-names = "mdss"; + + clocks = <&mmcc MDSS_AHB_CLK>, + <&mmcc MDSS_AXI_CLK>, + <&mmcc MDSS_MDP_CLK>; + clock-names = "iface", "bus", "core"; + + #address-cells = <1>; + #interrupt-cells = <1>; + #size-cells = <1>; + + interrupts = ; + interrupt-controller; + iommus = <&mmss_smmu 0>; + + power-domains = <&mmcc MDSS_GDSC>; + ranges; + + display-controller@c901000 { + compatible = "qcom,msm8998-dpu"; + reg = <0x0c901000 0x8f000>, + <0x0c9a8e00 0xf0>, + <0x0c9b0000 0x2008>, + <0x0c9b8000 0x1040>; + reg-names = "mdp", "regdma", "vbif", "vbif_nrt"; + + clocks = <&mmcc MDSS_AHB_CLK>, + <&mmcc MDSS_AXI_CLK>, + <&mmcc MNOC_AHB_CLK>, + <&mmcc MDSS_MDP_CLK>, + <&mmcc MDSS_VSYNC_CLK>; + clock-names = "iface", "bus", "mnoc", "core", "vsync"; + + interrupt-parent = <&mdss>; + interrupts = <0 IRQ_TYPE_LEVEL_HIGH>; + operating-points-v2 = <&mdp_opp_table>; + power-domains = <&rpmpd MSM8998_VDDMX>; + + 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>; + }; + }; + }; + }; + }; +... -- cgit v1.2.3