The Arm Komeda (aka Mali-D71) is a display controller that scans out a framebuffer and hands a signal to a digital encoder to generate a DVI or HDMI signal. It supports up to two pipelines, each frame can be composed of up to four layers.

Convert the existing DT binding to DT schema.

Signed-off-by: Andre Przywara andre.przywara@arm.com --- .../bindings/display/arm,komeda.txt | 78 ----------- .../bindings/display/arm,komeda.yaml | 130 ++++++++++++++++++ 2 files changed, 130 insertions(+), 78 deletions(-) delete mode 100644 Documentation/devicetree/bindings/display/arm,komeda.txt create mode 100644 Documentation/devicetree/bindings/display/arm,komeda.yaml

diff --git a/Documentation/devicetree/bindings/display/arm,komeda.txt b/Documentation/devicetree/bindings/display/arm,komeda.txt deleted file mode 100644 index 8513695ee47fe..0000000000000 --- a/Documentation/devicetree/bindings/display/arm,komeda.txt +++ /dev/null @@ -1,78 +0,0 @@ -Device Tree bindings for Arm Komeda display driver - -Required properties: -- compatible: Should be "arm,mali-d71" -- reg: Physical base address and length of the registers in the system -- interrupts: the interrupt line number of the device in the system -- clocks: A list of phandle + clock-specifier pairs, one for each entry - in 'clock-names' -- clock-names: A list of clock names. It should contain: - - "aclk": for the main processor clock -- #address-cells: Must be 1 -- #size-cells: Must be 0 -- iommus: configure the stream id to IOMMU, Must be configured if want to - enable iommu in display. for how to configure this node please reference - devicetree/bindings/iommu/arm,smmu-v3.txt, - devicetree/bindings/iommu/iommu.txt - -Required properties for sub-node: pipeline@nq -Each device contains one or two pipeline sub-nodes (at least one), each -pipeline node should provide properties: -- reg: Zero-indexed identifier for the pipeline -- clocks: A list of phandle + clock-specifier pairs, one for each entry - in 'clock-names' -- clock-names: should contain: - - "pxclk": pixel clock - -- port: each pipeline connect to an encoder input port. The connection is - modeled using the OF graph bindings specified in - Documentation/devicetree/bindings/graph.txt - -Optional properties: - - memory-region: phandle to a node describing memory (see - Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt) - to be used for the framebuffer; if not present, the framebuffer may - be located anywhere in memory. - -Example: -/ { - ... - - dp0: display@c00000 { - #address-cells = <1>; - #size-cells = <0>; - compatible = "arm,mali-d71"; - reg = <0xc00000 0x20000>; - interrupts = <0 168 4>; - clocks = <&dpu_aclk>; - clock-names = "aclk"; - iommus = <&smmu 0>, <&smmu 1>, <&smmu 2>, <&smmu 3>, - <&smmu 4>, <&smmu 5>, <&smmu 6>, <&smmu 7>, - <&smmu 8>, <&smmu 9>; - - dp0_pipe0: pipeline@0 { - clocks = <&fpgaosc2>; - clock-names = "pxclk"; - reg = <0>; - - port { - dp0_pipe0_out: endpoint { - remote-endpoint = <&db_dvi0_in>; - }; - }; - }; - - dp0_pipe1: pipeline@1 { - clocks = <&fpgaosc2>; - clock-names = "pxclk"; - reg = <1>; - - port { - dp0_pipe1_out: endpoint { - remote-endpoint = <&db_dvi1_in>; - }; - }; - }; - }; - ... -}; diff --git a/Documentation/devicetree/bindings/display/arm,komeda.yaml b/Documentation/devicetree/bindings/display/arm,komeda.yaml new file mode 100644 index 0000000000000..9f4aade97f10a --- /dev/null +++ b/Documentation/devicetree/bindings/display/arm,komeda.yaml @@ -0,0 +1,130 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/arm,komeda.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Arm Komeda display processor + +maintainers: + - Liviu Dudau Liviu.Dudau@arm.com + - Andre Przywara andre.przywara@arm.com + +description: + The Arm Mali D71 display processor supports up to two displays with up + to a 4K resolution each. Each pipeline can be composed of up to four + layers. It is typically connected to a digital display connector like HDMI. + +properties: + compatible: + oneOf: + - items: + - const: arm,mali-d32 + - const: arm,mali-d71 + - const: arm,mali-d71 + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clock-names: + const: aclk + + clocks: + maxItems: 1 + description: The main DPU processor clock + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + + memory-region: + maxItems: 1 + description: + Phandle to a node describing memory to be used for the framebuffer. + If not present, the framebuffer may be located anywhere in memory. + + iommus: + description: + The stream IDs for each of the used pipelines, each four IDs for the + four layers, plus one for the write-back stream. + minItems: 5 + maxItems: 10 + +patternProperties: + '^pipeline@[01]$': + type: object + description: + clocks + + properties: + reg: + enum: [ 0, 1 ] + + clock-names: + const: pxclk + + clocks: + maxItems: 1 + description: The input reference for the pixel clock. + + port: + $ref: /schemas/graph.yaml#/$defs/port-base + unevaluatedProperties: false + +additionalProperties: false + +required: + - "#address-cells" + - "#size-cells" + - compatible + - reg + - interrupts + - clock-names + - clocks + - pipeline@0 + +examples: + - | + display@c00000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "arm,mali-d71"; + reg = <0xc00000 0x20000>; + interrupts = <168>; + clocks = <&dpu_aclk>; + clock-names = "aclk"; + iommus = <&smmu 0>, <&smmu 1>, <&smmu 2>, <&smmu 3>, + <&smmu 8>, + <&smmu 4>, <&smmu 5>, <&smmu 6>, <&smmu 7>, + <&smmu 9>; + + dp0_pipe0: pipeline@0 { + clocks = <&fpgaosc2>; + clock-names = "pxclk"; + reg = <0>; + + port { + dp0_pipe0_out: endpoint { + remote-endpoint = <&db_dvi0_in>; + }; + }; + }; + + dp0_pipe1: pipeline@1 { + clocks = <&fpgaosc2>; + clock-names = "pxclk"; + reg = <1>; + + port { + dp0_pipe1_out: endpoint { + remote-endpoint = <&db_dvi1_in>; + }; + }; + }; + }; +...