[3/4] dt-bindings: media: Add Aspeed Video Engine binding documentation

Commit Message

Eddie James Aug. 29, 2018, 9:09 p.m. UTC

Document the bindings.

Signed-off-by: Eddie James <[e-mail]>
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 .../devicetree/bindings/media/aspeed-video.txt     | 23 ++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/aspeed-video.txt

Patch

diff --git a/Documentation/devicetree/bindings/media/aspeed-video.txt b/Documentation/devicetree/bindings/media/aspeed-video.txt
new file mode 100644
index 0000000..58c056a
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+++ b/Documentation/devicetree/bindings/media/aspeed-video.txt
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+* Device tree bindings for Aspeed Video Engine
+
+The Video Engine (VE) embedded in the Aspeed AST2400 and AST2500 SOCs can
+capture and compress video data from digital or analog sources.
+
+Required properties:
+ - compatible:		"aspeed,ast2400-video" or "aspeed,ast2500-video"
+ - reg:			contains the offset and length of the VE memory region
+ - clocks:		pointers to the the "vclk" and "eclk" of the syscon
+ - clock-names:		"vclk-gate", "eclk-gate"
+ - resets:		pointer to the VE reset of the syscon
+ - interrupts:		the interrupt associated with the VE on this platform
+
+Example:
+
+video: video@1e700000 {
+    compatible = "aspeed,ast2500-video";
+    reg = <0x1e700000 0x20000>;
+    clocks = <&syscon ASPEED_CLK_GATE_VCLK>, <&syscon ASPEED_CLK_GATE_ECLK>;
+    clock-names = "vclk-gate", "eclk-gate";
+    resets = <&syscon ASPEED_RESET_VIDEO>;
+    interrupts = <7>;
+};