mirror of
https://github.com/torvalds/linux.git
synced 2024-12-28 22:02:28 +00:00
74 lines
2.0 KiB
Plaintext
74 lines
2.0 KiB
Plaintext
|
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:
|
||
|
- "mclk": for the main processor clock
|
||
|
- "pclk": for the APB interface clock
|
||
|
- #address-cells: Must be 1
|
||
|
- #size-cells: Must be 0
|
||
|
|
||
|
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
|
||
|
- "aclk": AXI interface 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_mclk>, <&dpu_aclk>;
|
||
|
clock-names = "mclk", "pclk";
|
||
|
|
||
|
dp0_pipe0: pipeline@0 {
|
||
|
clocks = <&fpgaosc2>, <&dpu_aclk>;
|
||
|
clock-names = "pxclk", "aclk";
|
||
|
reg = <0>;
|
||
|
|
||
|
port {
|
||
|
dp0_pipe0_out: endpoint {
|
||
|
remote-endpoint = <&db_dvi0_in>;
|
||
|
};
|
||
|
};
|
||
|
};
|
||
|
|
||
|
dp0_pipe1: pipeline@1 {
|
||
|
clocks = <&fpgaosc2>, <&dpu_aclk>;
|
||
|
clock-names = "pxclk", "aclk";
|
||
|
reg = <1>;
|
||
|
|
||
|
port {
|
||
|
dp0_pipe1_out: endpoint {
|
||
|
remote-endpoint = <&db_dvi1_in>;
|
||
|
};
|
||
|
};
|
||
|
};
|
||
|
};
|
||
|
...
|
||
|
};
|