1ARM Mali-DP 2 3The following bindings apply to a family of Display Processors sold as 4licensable IP by ARM Ltd. The bindings describe the Mali DP500, DP550 and 5DP650 processors that offer multiple composition layers, support for 6rotation and scaling output. 7 8Required properties: 9 - compatible: should be one of 10 "arm,mali-dp500" 11 "arm,mali-dp550" 12 "arm,mali-dp650" 13 depending on the particular implementation present in the hardware 14 - reg: Physical base address and size of the block of registers used by 15 the processor. 16 - interrupts: Interrupt list, as defined in ../interrupt-controller/interrupts.txt, 17 interrupt client nodes. 18 - interrupt-names: name of the engine inside the processor that will 19 use the corresponding interrupt. Should be one of "DE" or "SE". 20 - clocks: A list of phandle + clock-specifier pairs, one for each entry 21 in 'clock-names' 22 - clock-names: A list of clock names. It should contain: 23 - "pclk": for the APB interface clock 24 - "aclk": for the AXI interface clock 25 - "mclk": for the main processor clock 26 - "pxlclk": for the pixel clock feeding the output PLL of the processor. 27 - arm,malidp-output-port-lines: Array of u8 values describing the number 28 of output lines per channel (R, G and B). 29 30Required sub-nodes: 31 - port: The Mali DP connection to an encoder input port. The connection 32 is modelled using the OF graph bindings specified in 33 Documentation/devicetree/bindings/graph.txt 34 35Optional properties: 36 - memory-region: phandle to a node describing memory (see 37 Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt) 38 to be used for the framebuffer; if not present, the framebuffer may 39 be located anywhere in memory. 40 - arm,malidp-arqos-high-level: integer of u32 value describing the ARQoS 41 levels of DP500's QoS signaling. 42 43 44Example: 45 46/ { 47 ... 48 49 dp0: malidp@6f200000 { 50 compatible = "arm,mali-dp650"; 51 reg = <0 0x6f200000 0 0x20000>; 52 memory-region = <&display_reserved>; 53 interrupts = <0 168 IRQ_TYPE_LEVEL_HIGH>, 54 <0 168 IRQ_TYPE_LEVEL_HIGH>; 55 interrupt-names = "DE", "SE"; 56 clocks = <&oscclk2>, <&fpgaosc0>, <&fpgaosc1>, <&fpgaosc1>; 57 clock-names = "pxlclk", "mclk", "aclk", "pclk"; 58 arm,malidp-output-port-lines = /bits/ 8 <8 8 8>; 59 arm,malidp-arqos-high-level = <0xd000d000>; 60 port { 61 dp0_output: endpoint { 62 remote-endpoint = <&tda998x_2_input>; 63 }; 64 }; 65 }; 66 67 ... 68}; 69