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author | Ingo Molnar <mingo@kernel.org> | 2018-11-03 23:42:16 +0100 |
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committer | Ingo Molnar <mingo@kernel.org> | 2018-11-03 23:42:16 +0100 |
commit | 23a12ddee1ce28065b71f14ccc695b5a0c8a64ff (patch) | |
tree | cedaa1cde5b2557116e523c31552187804704093 /Documentation/devicetree/bindings/soc/amlogic/amlogic,canvas.txt | |
parent | compat: Cleanup in_compat_syscall() callers (diff) | |
parent | objtool: Support GCC 9 cold subfunction naming scheme (diff) | |
download | linux-dev-23a12ddee1ce28065b71f14ccc695b5a0c8a64ff.tar.xz linux-dev-23a12ddee1ce28065b71f14ccc695b5a0c8a64ff.zip |
Merge branch 'core/urgent' into x86/urgent, to pick up objtool fix
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/soc/amlogic/amlogic,canvas.txt')
-rw-r--r-- | Documentation/devicetree/bindings/soc/amlogic/amlogic,canvas.txt | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/soc/amlogic/amlogic,canvas.txt b/Documentation/devicetree/bindings/soc/amlogic/amlogic,canvas.txt new file mode 100644 index 000000000000..436d2106e80d --- /dev/null +++ b/Documentation/devicetree/bindings/soc/amlogic/amlogic,canvas.txt @@ -0,0 +1,29 @@ +Amlogic Canvas +================================ + +A canvas is a collection of metadata that describes a pixel buffer. +Those metadata include: width, height, phyaddr, wrapping, block mode +and endianness. + +Many IPs within Amlogic SoCs rely on canvas indexes to read/write pixel data +rather than use the phy addresses directly. For instance, this is the case for +the video decoders and the display. + +Amlogic SoCs have 256 canvas. + +Device Tree Bindings: +--------------------- + +Video Lookup Table +-------------------------- + +Required properties: +- compatible: "amlogic,canvas" +- reg: Base physical address and size of the canvas registers. + +Example: + +canvas: video-lut@48 { + compatible = "amlogic,canvas"; + reg = <0x0 0x48 0x0 0x14>; +}; |