Re: [RESEND RFC/PATCH 1/8] dt-bindings: Add a binding for Mediatek Video Processor Unit
From: Mark Rutland <mark.rutland@arm.com>
Date: 2015-11-17 14:13:37
Also in:
linux-arm-kernel, linux-media, linux-mediatek, lkml
On Tue, Nov 17, 2015 at 08:54:38PM +0800, Tiffany Lin wrote:
quoted hunk ↗ jump to hunk
From: Andrew-CT Chen <andrew-ct.chen@mediatek.com> Add a DT binding documentation of Video Processor Unit for the MT8173 SoC from Mediatek. Signed-off-by: Andrew-CT Chen <andrew-ct.chen@mediatek.com> --- .../devicetree/bindings/media/mediatek-vpu.txt | 27 ++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/mediatek-vpu.txtdiff --git a/Documentation/devicetree/bindings/media/mediatek-vpu.txt b/Documentation/devicetree/bindings/media/mediatek-vpu.txt new file mode 100644 index 0000000..99a4e5e --- /dev/null +++ b/Documentation/devicetree/bindings/media/mediatek-vpu.txt@@ -0,0 +1,27 @@ +* Mediatek Video Processor Unit + +Video Processor Unit is a HW video controller. It controls HW Codec including +H.264/VP8/VP9 Decode, H.264/VP8 Encode and Image Processor (scale/rotate/color convert). + +Required properties: + - compatible: "mediatek,mt8173-vpu" + - reg: Must contain an entry for each entry in reg-names. + - reg-names: Must include the following entries: + "sram": SRAM base + "cfg_reg": Main configuration registers base + - interrupts: interrupt number to the cpu. + - clocks : clock name from clock manager + - clock-names: the clocks of the VPU H/W
You need to explicitly define the set of clock-names you expect here. Mark.
+ - iommus : phandle and IOMMU spcifier for the IOMMU that serves the VPU.
+
+Example:
+ vpu: vpu@10020000 {
+ compatible = "mediatek,mt8173-vpu";
+ reg = <0 0x10020000 0 0x30000>,
+ <0 0x10050000 0 0x100>;
+ reg-names = "sram", "cfg_reg";
+ interrupts = <GIC_SPI 166 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&topckgen TOP_SCP_SEL>;
+ clock-names = "main";
+ iommus = <&iommu M4U_PORT_VENC_RCPU>;
+ };
--
1.7.9.5