projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 7ef3b44c JC |
1 | device-tree bindings for rockchip 2D raster graphic acceleration controller (RGA) |
| 2 | ||
| 3 | RGA is a standalone 2D raster graphic acceleration unit. It accelerates 2D | |
| 4 | graphics operations, such as point/line drawing, image scaling, rotation, | |
| 5 | BitBLT, alpha blending and image blur/sharpness. | |
| 6 | ||
| 7 | Required properties: | |
| 8 | - compatible: value should be one of the following | |
| 0c9d29eb JS |
9 | "rockchip,rk3228-rga", "rockchip,rk3288-rga": for Rockchip RK3228 |
| 10 | "rockchip,rk3288-rga": for Rockchip RK3288 | |
| 11 | "rockchip,rk3399-rga": for Rockchip RK3399 | |
| 7ef3b44c JC |
12 | |
| 13 | - interrupts: RGA interrupt specifier. | |
| 14 | ||
| 15 | - clocks: phandle to RGA sclk/hclk/aclk clocks | |
| 16 | ||
| 17 | - clock-names: should be "aclk", "hclk" and "sclk" | |
| 18 | ||
| 19 | - resets: Must contain an entry for each entry in reset-names. | |
| 20 | See ../reset/reset.txt for details. | |
| 21 | - reset-names: should be "core", "axi" and "ahb" | |
| 22 | ||
| 23 | Example: | |
| 24 | SoC-specific DT entry: | |
| 25 | rga: rga@ff680000 { | |
| 26 | compatible = "rockchip,rk3399-rga"; | |
| 27 | reg = <0xff680000 0x10000>; | |
| 28 | interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>; | |
| 29 | clocks = <&cru ACLK_RGA>, <&cru HCLK_RGA>, <&cru SCLK_RGA_CORE>; | |
| 30 | clock-names = "aclk", "hclk", "sclk"; | |
| 31 | ||
| 32 | resets = <&cru SRST_RGA_CORE>, <&cru SRST_A_RGA>, <&cru SRST_H_RGA>; | |
| 33 | reset-names = "core, "axi", "ahb"; | |
| 34 | }; |