[PATCH v2 1/3] dt-bindings: mediatek: Add a binding for Mediatek JPEG Decoder

[Rick Chang]

Add a DT binding documentation for Mediatek JPEG Decoder of
MT2701 SoC.

Signed-off-by: Rick Chang <rick.chang@xxxxxxxxxxxx>
Signed-off-by: Minghsiu Tsai <minghsiu.tsai@xxxxxxxxxxxx>
---
 .../bindings/media/mediatek-jpeg-codec.txt         | 35 ++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/mediatek-jpeg-codec.txt

diff --git a/Documentation/devicetree/bindings/media/mediatek-jpeg-codec.txt b/Documentation/devicetree/bindings/media/mediatek-jpeg-codec.txt
new file mode 100644
index 0000000..514e656
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/mediatek-jpeg-codec.txt
@@ -0,0 +1,35 @@
+* Mediatek JPEG Codec
+
+Mediatek JPEG Codec device driver is a v4l2 driver which can decode
+JPEG-encoded video frames.
+
+Required properties:
+  - compatible : "mediatek,mt2701-jpgdec"
+  - reg : Physical base address of the jpeg codec registers and length of
+        memory mapped region.
+  - interrupts : interrupt number to the cpu.
+  - clocks : clock name from clock manager
+  - clock-names: the clocks of the jpeg codec H/W
+  - power-domains : a phandle to the power domain.
+  - larb : must contain the larbes of current platform
+  - iommus : Mediatek IOMMU H/W has designed the fixed associations with
+        the multimedia H/W. and there is only one multimedia iommu domain.
+        "iommus = <&iommu portid>" the "portid" is from
+        dt-bindings\iommu\mt2701-iommu-port.h, it means that this portid will
+        enable iommu. The portid default is disable iommu if "<&iommu portid>"
+        don't be added.
+
+Example:
+	jpegdec: jpegdec@15004000 {
+		compatible = "mediatek,mt2701-jpgdec";
+		reg = <0 0x15004000 0 0x1000>;
+		interrupts = <GIC_SPI 143 IRQ_TYPE_LEVEL_LOW>;
+		clocks =  <&imgsys CLK_IMG_JPGDEC_SMI>,
+			  <&imgsys CLK_IMG_JPGDEC>;
+		clock-names = "jpgdec-smi",
+			      "jpgdec";
+		power-domains = <&scpsys MT2701_POWER_DOMAIN_ISP>;
+		mediatek,larb = <&larb2>;
+		iommus = <&iommu MT2701_M4U_PORT_JPGDEC_WDMA>,
+			 <&iommu MT2701_M4U_PORT_JPGDEC_BSDMA>;
+	};
-- 
1.9.1