From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rob Herring Subject: Re: [RFC,v4,1/4] media: dt-bindings: mt8183: Added camera ISP Pass 1 Date: Wed, 21 Aug 2019 14:47:52 -0500 Message-ID: <20190821194752.GA15270@bogus> References: <20190807124803.29884-1-jungo.lin@mediatek.com> <20190807124803.29884-2-jungo.lin@mediatek.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <20190807124803.29884-2-jungo.lin@mediatek.com> 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: Jungo Lin 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: devicetree@vger.kernel.org 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. > + 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 >