[RFC PATCH V2 1/4] dt-bindings: mt8183: Added FD dt-bindings
From: Jerry-ch Chen <hidden>
Date: 2019-07-09 08:41:09
Also in:
linux-devicetree, linux-media, linux-mediatek
Subsystem:
media input infrastructure (v4l/dvb), open firmware and flattened device tree bindings, the rest · Maintainers:
Mauro Carvalho Chehab, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
From: Jerry-ch Chen <redacted> This patch adds DT binding documentation for the Face Detection (FD) unit of the Mediatek's mt8183 SoC. Signed-off-by: Jerry-ch Chen <redacted> --- .../bindings/media/mediatek,mt8183-fd.txt | 33 ++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/mediatek,mt8183-fd.txt
diff --git a/Documentation/devicetree/bindings/media/mediatek,mt8183-fd.txt b/Documentation/devicetree/bindings/media/mediatek,mt8183-fd.txt
new file mode 100644
index 0000000..0837223
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/mediatek,mt8183-fd.txt@@ -0,0 +1,33 @@ +* Mediatek Face Detection Unit (FD) + +Face Detection (FD) unit is a typical memory-to-memory HW device. +It provides hardware accelerated face detection function, and it +is able to detect different poses of faces. FD will writre result +of detected face into memory as output. + +Required properties: +- compatible: "mediatek,mt8183-fd" +- mediatek,scp : the node of system control processor (SCP), see + Documentation/devicetree/bindings/remoteproc/mtk,scp.txt for details. +- iommus: should point to the 3 entries: M4U_PORT_CAM_FDVT_RP, + M4U_PORT_CAM_FDVT_WR and M4U_PORT_CAM_FDVT_RB. (Please see + Documentation/devicetree/bindings/iommu/mediatek,iommu.txt for details.) +- reg: Physical base address and length of the register space. +- interrupts: interrupt number to the cpu. +- clocks : must contain the FDVT clock, see + Documentation/devicetree/bindings/clock/clock-bindings.txt for details. +- clock-names: must be "fd". + +Example: + fd: fd@1502b000 { + compatible = "mediatek,mt8183-fd"; + mediatek,scp = <&scp>; + iommus = <&iommu M4U_PORT_CAM_FDVT_RP>, + <&iommu M4U_PORT_CAM_FDVT_WR>, + <&iommu M4U_PORT_CAM_FDVT_RB>; + reg = <0 0x1502b000 0 0x1000>; + interrupts = <GIC_SPI 269 IRQ_TYPE_LEVEL_LOW>; + clocks = <&imgsys CLK_IMG_FDVT>; + clock-names = "fd"; + }; +
--
1.9.1
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