66 lines
2.2 KiB
Plaintext
66 lines
2.2 KiB
Plaintext
ARM Mali-DP
|
|
|
|
The following bindings apply to a family of Display Processors sold as
|
|
licensable IP by ARM Ltd. The bindings describe the Mali DP500, DP550 and
|
|
DP650 processors that offer multiple composition layers, support for
|
|
rotation and scaling output.
|
|
|
|
Required properties:
|
|
- compatible: should be one of
|
|
"arm,mali-dp500"
|
|
"arm,mali-dp550"
|
|
"arm,mali-dp650"
|
|
depending on the particular implementation present in the hardware
|
|
- reg: Physical base address and size of the block of registers used by
|
|
the processor.
|
|
- interrupts: Interrupt list, as defined in ../interrupt-controller/interrupts.txt,
|
|
interrupt client nodes.
|
|
- interrupt-names: name of the engine inside the processor that will
|
|
use the corresponding interrupt. Should be one of "DE" or "SE".
|
|
- 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:
|
|
- "pclk": for the APB interface clock
|
|
- "aclk": for the AXI interface clock
|
|
- "mclk": for the main processor clock
|
|
- "pxlclk": for the pixel clock feeding the output PLL of the processor.
|
|
- arm,malidp-output-port-lines: Array of u8 values describing the number
|
|
of output lines per channel (R, G and B).
|
|
|
|
Required sub-nodes:
|
|
- port: The Mali DP connection to an encoder input port. The connection
|
|
is modelled 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: malidp@6f200000 {
|
|
compatible = "arm,mali-dp650";
|
|
reg = <0 0x6f200000 0 0x20000>;
|
|
memory-region = <&display_reserved>;
|
|
interrupts = <0 168 IRQ_TYPE_LEVEL_HIGH>,
|
|
<0 168 IRQ_TYPE_LEVEL_HIGH>;
|
|
interrupt-names = "DE", "SE";
|
|
clocks = <&oscclk2>, <&fpgaosc0>, <&fpgaosc1>, <&fpgaosc1>;
|
|
clock-names = "pxlclk", "mclk", "aclk", "pclk";
|
|
arm,malidp-output-port-lines = /bits/ 8 <8 8 8>;
|
|
port {
|
|
dp0_output: endpoint {
|
|
remote-endpoint = <&tda998x_2_input>;
|
|
};
|
|
};
|
|
};
|
|
|
|
...
|
|
};
|