[v3,2/3] devicetree: bindings: Document Renesas R-Car JPEG Processing Unit

Commit Message

Mikhail Ulyanov July 21, 2015, 2 a.m. UTC

Add Renesas R-Car JPEG processing unit driver device tree bindings 
documentation.

Signed-off-by: Mikhail Ulyanov <[e-mail]>
---
Changes since v2:
 - remove generic "renesas,jpu-gen2" descriptor

Changes since v1:
 - Fix typos

 .../devicetree/bindings/media/renesas,jpu.txt      | 24 ++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/renesas,jpu.txt

Patch

diff --git a/Documentation/devicetree/bindings/media/renesas,jpu.txt b/Documentation/devicetree/bindings/media/renesas,jpu.txt
new file mode 100644
index 0000000..0cb9420
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/renesas,jpu.txt
@@ -0,0 +1,24 @@ 
+* Renesas JPEG Processing Unit
+
+The JPEG processing unit (JPU) incorporates the JPEG codec with an encoding
+and decoding function conforming to the JPEG baseline process, so that the JPU
+can encode image data and decode JPEG data quickly.
+
+Required properties:
+  - compatible: should containg one of the following:
+			- "renesas,jpu-r8a7790" for R-Car H2
+			- "renesas,jpu-r8a7791" for R-Car M2-W
+			- "renesas,jpu-r8a7792" for R-Car V2H
+			- "renesas,jpu-r8a7793" for R-Car M2-N
+
+  - reg: Base address and length of the registers block for the JPU.
+  - interrupts: JPU interrupt specifier.
+  - clocks: A phandle + clock-specifier pair for the JPU functional clock.
+
+Example: R8A7790 (R-Car H2) JPU node
+	jpeg-codec@fe980000 {
+		compatible = "renesas,jpu-r8a7790";
+		reg = <0 0xfe980000 0 0x10300>;
+		interrupts = <0 272 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&mstp1_clks R8A7790_CLK_JPU>;
+	};