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Date: Thu, 19 Nov 2015 10:47:10 +0800 From: andrew-ct chen <andrew-ct.chen@...iatek.com> To: Mark Rutland <mark.rutland@....com> CC: Tiffany Lin <tiffany.lin@...iatek.com>, Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>, Ian Campbell <ijc+devicetree@...lion.org.uk>, Kumar Gala <galak@...eaurora.org>, "Catalin Marinas" <catalin.marinas@....com>, Will Deacon <will.deacon@....com>, "Mauro Carvalho Chehab" <mchehab@....samsung.com>, Matthias Brugger <matthias.bgg@...il.com>, Daniel Kurtz <djkurtz@...omium.org>, Sascha Hauer <s.hauer@...gutronix.de>, Hongzhou Yang <hongzhou.yang@...iatek.com>, "Hans Verkuil" <hans.verkuil@...co.com>, Laurent Pinchart <laurent.pinchart@...asonboard.com>, Sakari Ailus <sakari.ailus@....fi>, Geert Uytterhoeven <geert@...ux-m68k.org>, Mikhail Ulyanov <mikhail.ulyanov@...entembedded.com>, Fabien Dessenne <fabien.dessenne@...com>, Arnd Bergmann <arnd@...db.de>, Darren Etheridge <detheridge@...com>, Peter Griffin <peter.griffin@...aro.org>, "Benoit Parrot" <bparrot@...com>, Eddie Huang <eddie.huang@...iatek.com>, "Yingjoe Chen" <yingjoe.chen@...iatek.com>, James Liao <jamesjj.liao@...iatek.com>, Daniel Hsiao <daniel.hsiao@...iatek.com>, <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>, <linux-media@...r.kernel.org>, <linux-mediatek@...ts.infradead.org> Subject: Re: [RESEND RFC/PATCH 1/8] dt-bindings: Add a binding for Mediatek Video Processor Unit On Tue, 2015-11-17 at 14:13 +0000, Mark Rutland wrote: > On Tue, Nov 17, 2015 at 08:54:38PM +0800, Tiffany Lin wrote: > > From: Andrew-CT Chen <andrew-ct.chen@...iatek.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@...iatek.com> > > --- > > .../devicetree/bindings/media/mediatek-vpu.txt | 27 ++++++++++++++++++++ > > 1 file changed, 27 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/media/mediatek-vpu.txt > > > > diff --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. Sorry, only one clock to enable VPU hardware. We will modify to - clocks : must contain one entry for each clock-names. - clock-names : must be "main", It is the main clock of VPU. Thanks.. > > > + - iommus : phandle and IOMMU spcifier for the IOMMU that serves the VPU. > > + > > +Example: > > + vpu: vpu@...20000 { > > + 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 > > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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