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68 lines
2.4 KiB
68 lines
2.4 KiB
ARM Mali-DP |
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The following bindings apply to a family of Display Processors sold as |
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licensable IP by ARM Ltd. The bindings describe the Mali DP500, DP550 and |
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DP650 processors that offer multiple composition layers, support for |
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rotation and scaling output. |
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Required properties: |
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- compatible: should be one of |
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"arm,mali-dp500" |
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"arm,mali-dp550" |
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"arm,mali-dp650" |
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depending on the particular implementation present in the hardware |
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- reg: Physical base address and size of the block of registers used by |
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the processor. |
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- interrupts: Interrupt list, as defined in ../interrupt-controller/interrupts.txt, |
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interrupt client nodes. |
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- interrupt-names: name of the engine inside the processor that will |
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use the corresponding interrupt. Should be one of "DE" or "SE". |
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- clocks: A list of phandle + clock-specifier pairs, one for each entry |
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in 'clock-names' |
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- clock-names: A list of clock names. It should contain: |
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- "pclk": for the APB interface clock |
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- "aclk": for the AXI interface clock |
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- "mclk": for the main processor clock |
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- "pxlclk": for the pixel clock feeding the output PLL of the processor. |
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- arm,malidp-output-port-lines: Array of u8 values describing the number |
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of output lines per channel (R, G and B). |
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Required sub-nodes: |
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- port: The Mali DP connection to an encoder input port. The connection |
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is modelled using the OF graph bindings specified in |
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Documentation/devicetree/bindings/graph.txt |
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Optional properties: |
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- memory-region: phandle to a node describing memory (see |
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Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt) |
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to be used for the framebuffer; if not present, the framebuffer may |
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be located anywhere in memory. |
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- arm,malidp-arqos-high-level: integer of u32 value describing the ARQoS |
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levels of DP500's QoS signaling. |
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Example: |
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/ { |
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... |
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dp0: malidp@6f200000 { |
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compatible = "arm,mali-dp650"; |
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reg = <0 0x6f200000 0 0x20000>; |
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memory-region = <&display_reserved>; |
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interrupts = <0 168 IRQ_TYPE_LEVEL_HIGH>, |
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<0 168 IRQ_TYPE_LEVEL_HIGH>; |
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interrupt-names = "DE", "SE"; |
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clocks = <&oscclk2>, <&fpgaosc0>, <&fpgaosc1>, <&fpgaosc1>; |
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clock-names = "pxlclk", "mclk", "aclk", "pclk"; |
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arm,malidp-output-port-lines = /bits/ 8 <8 8 8>; |
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arm,malidp-arqos-high-level = <0xd000d000>; |
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port { |
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dp0_output: endpoint { |
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remote-endpoint = <&tda998x_2_input>; |
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}; |
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}; |
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}; |
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... |
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};
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