LinuxTV Patchwork [v6,1/2] dt-bindings: media: Add Aspeed Video Engine binding documentation

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Submitter Eddie James
Date Nov. 27, 2018, 7:37 p.m.
Message ID <1543347457-59224-2-git-send-email-eajames@linux.ibm.com>
Download mbox | patch
Permalink /patch/53175/
State Changes Requested
Delegated to: Hans Verkuil
Headers show

Comments

Eddie James - Nov. 27, 2018, 7:37 p.m.
Document the bindings.

Signed-off-by: Eddie James <eajames@linux.ibm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
---
 .../devicetree/bindings/media/aspeed-video.txt     | 26 ++++++++++++++++++++++
 1 file changed, 26 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..78b464a
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/aspeed-video.txt
@@ -0,0 +1,26 @@ 
+* 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-engine" or
+			"aspeed,ast2500-video-engine"
+ - reg:			contains the offset and length of the VE memory region
+ - clocks:		clock specifiers for the syscon clocks associated with
+			the VE (ordering must match the clock-names property)
+ - clock-names:		"vclk" and "eclk"
+ - resets:		reset specifier for the syscon reset associated with
+			the VE
+ - interrupts:		the interrupt associated with the VE on this platform
+
+Example:
+
+video-engine@1e700000 {
+    compatible = "aspeed,ast2500-video-engine";
+    reg = <0x1e700000 0x20000>;
+    clocks = <&syscon ASPEED_CLK_GATE_VCLK>, <&syscon ASPEED_CLK_GATE_ECLK>;
+    clock-names = "vclk", "eclk";
+    resets = <&syscon ASPEED_RESET_VIDEO>;
+    interrupts = <7>;
+};

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