From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jungo Lin Subject: Re: [RFC,v4,1/4] media: dt-bindings: mt8183: Added camera ISP Pass 1 Date: Thu, 22 Aug 2019 20:47:40 +0800 Message-ID: <1566478060.5044.0.camel@mtksdccf07> References: <20190807124803.29884-1-jungo.lin@mediatek.com> <20190807124803.29884-2-jungo.lin@mediatek.com> <20190821194752.GA15270@bogus> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20190821194752.GA15270@bogus> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Rob Herring Cc: ryan.yu@mediatek.com, frankie.chiu@mediatek.com, laurent.pinchart@ideasonboard.com, Rynn.Wu@mediatek.com, suleiman@chromium.org, Jerry-ch.Chen@mediatek.com, frederic.chen@mediatek.com, linux-media@vger.kernel.org, devicetree@vger.kernel.org, hverkuil-cisco@xs4all.nl, shik@chromium.org, yuzhao@chromium.org, linux-mediatek@lists.infradead.org, matthias.bgg@gmail.com, mchehab@kernel.org, linux-arm-kernel@lists.infradead.org, Sean.Cheng@mediatek.com, srv_heupstream@mediatek.com, sj.huang@mediatek.com, tfiga@chromium.org, zwisler@chromium.org, ddavenport@chromium.org List-Id: linux-mediatek@lists.infradead.org Hi, Rob: On Wed, 2019-08-21 at 14:47 -0500, Rob Herring wrote: > On Wed, Aug 07, 2019 at 08:48:00PM +0800, Jungo Lin wrote: > > This patch adds DT binding document for the Pass 1 (P1) unit > > in Mediatek's camera ISP system. The Pass 1 unit grabs the sensor > > data out from the sensor interface, applies ISP image effects > > from tuning data and outputs the image data or statistics data to DRAM. > > > > Signed-off-by: Jungo Lin > > --- > > .../bindings/media/mediatek,camisp.txt | 73 +++++++++++++++++++ > > 1 file changed, 73 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/media/mediatek,camisp.txt > > > > diff --git a/Documentation/devicetree/bindings/media/mediatek,camisp.txt b/Documentation/devicetree/bindings/media/mediatek,camisp.txt > > new file mode 100644 > > index 000000000000..fa2713acceca > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/media/mediatek,camisp.txt > > @@ -0,0 +1,73 @@ > > +* Mediatek Image Signal Processor Pass 1 (ISP P1) > > + > > +The Pass 1 unit of Mediatek's camera ISP system grabs the sensor data out > > +from the sensor interface, applies ISP effects from tuning data and outputs > > +the image data and statistics data to DRAM. Furthermore, Pass 1 unit has > > +the ability to output two different resolutions frames at the same time to > > +increase the performance of the camera application. > > + > > +Required properties: > > +- compatible: Must be "mediatek,mt8183-camisp" for MT8183. > > +- reg: Physical base address of the camera function block register and > > + length of memory mapped region. Must contain an entry for each entry > > + in reg-names. > > +- reg-names: Must include the following entries: > > + "cam_sys": Camera base function block > > + "cam_uni": Camera UNI function block > > + "cam_a": Camera ISP P1 hardware unit A > > + "cam_b": Camera ISP P1 hardware unit B > > + "cam_c": Camera ISP P1 hardware unit C > > +- interrupts: Must contain an entry for each entry in interrupt-names. > > +- interrupt-names : Must include the following entries: > > + "cam_uni": Camera UNI interrupt > > + "cam_a": Camera unit A interrupt > > + "cam_b": Camera unit B interrupt > > + "cam_c": Camera unit C interrupt > > +- iommus: Shall point to the respective IOMMU block with master port > > + as argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.txt > > + for details. > > +- clocks: A list of phandle and clock specifier pairs as listed > > + in clock-names property, see > > + Documentation/devicetree/bindings/clock/clock-bindings.txt for details. > > +- clock-names: Must be "camsys_cam_cgpdn" and "camsys_camtg_cgpdn". > > +- mediatek,larb: Must contain the local arbiters in the current SoCs, see > > + Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.txt > > + for details. > > +- power-domains: a phandle to the power domain, see > > + Documentation/devicetree/bindings/power/power_domain.txt for details. > > +- mediatek,scp : The node of system control processor (SCP), see > > + Documentation/devicetree/bindings/remoteproc/mtk,scp.txt for details. > > + > > +Example: > > +SoC specific DT entry: > > + > > + camisp: camisp@1a000000 { > > + compatible = "mediatek,mt8183-camisp", "syscon"; > > syscon doesn't seem appropriate nor is it documented. > Thanks for your comment. I will remove "syscon" in next patch. Best regards, Jungo > > + reg = <0 0x1a000000 0 0x1000>, > > + <0 0x1a003000 0 0x1000>, > > + <0 0x1a004000 0 0x2000>, > > + <0 0x1a006000 0 0x2000>, > > + <0 0x1a008000 0 0x2000>; > > + reg-names = "cam_sys", > > + "cam_uni", > > + "cam_a", > > + "cam_b", > > + "cam_c"; > > + interrupts = , > > + , > > + , > > + ; > > + interrupt-names = "cam_uni", > > + "cam_a", > > + "cam_b", > > + "cam_c"; > > + iommus = <&iommu M4U_PORT_CAM_IMGO>; > > + clocks = <&camsys CLK_CAM_CAM>, > > + <&camsys CLK_CAM_CAMTG>; > > + clock-names = "camsys_cam_cgpdn", > > + "camsys_camtg_cgpdn"; > > + mediatek,larb = <&larb3>, > > + <&larb6>; > > + power-domains = <&scpsys MT8183_POWER_DOMAIN_CAM>; > > + mediatek,scp = <&scp>; > > + }; > > -- > > 2.18.0 > >