tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1Simple Framebuffer
2
3A simple frame-buffer describes a raw memory region that may be rendered to,
4with the assumption that the display hardware has already been set up to scan
5out from that buffer.
6
7Required properties:
8- compatible: "simple-framebuffer"
9- reg: Should contain the location and size of the framebuffer memory.
10- width: The width of the framebuffer in pixels.
11- height: The height of the framebuffer in pixels.
12- stride: The number of bytes in each line of the framebuffer.
13- format: The format of the framebuffer surface. Valid values are:
14 - r5g6b5 (16-bit pixels, d[15:11]=r, d[10:5]=g, d[4:0]=b).
15 - a8b8g8r8 (32-bit pixels, d[31:24]=a, d[23:16]=b, d[15:8]=g, d[7:0]=r).
16
17Example:
18
19 framebuffer {
20 compatible = "simple-framebuffer";
21 reg = <0x1d385000 (1600 * 1200 * 2)>;
22 width = <1600>;
23 height = <1200>;
24 stride = <(1600 * 2)>;
25 format = "r5g6b5";
26 };