From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from nblzone-211-213.nblnetworks.fi ([83.145.211.213]:37294 "EHLO hillosipuli.retiisi.org.uk" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751554AbdLSLxc (ORCPT ); Tue, 19 Dec 2017 06:53:32 -0500 Date: Tue, 19 Dec 2017 13:53:28 +0200 From: Sakari Ailus To: Yong Deng Cc: maxime.ripard@free-electrons.com, Mauro Carvalho Chehab , Rob Herring , Mark Rutland , Chen-Yu Tsai , Greg Kroah-Hartman , "David S. Miller" , Hans Verkuil , Arnd Bergmann , Hugues Fruchet , Yannick Fertre , Philipp Zabel , Benoit Parrot , Benjamin Gaignard , Jean-Christophe Trotin , Ramesh Shanmugasundaram , Minghsiu Tsai , Krzysztof Kozlowski , Robert Jarzmik , linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-sunxi@googlegroups.com Subject: Re: [PATCH v2 2/3] dt-bindings: media: Add Allwinner V3s Camera Sensor Interface (CSI) Message-ID: <20171219115327.ofs5xwwimpn7x72n@valkosipuli.retiisi.org.uk> References: <1501131697-1359-1-git-send-email-yong.deng@magewell.com> <1501131697-1359-3-git-send-email-yong.deng@magewell.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1501131697-1359-3-git-send-email-yong.deng@magewell.com> Sender: linux-media-owner@vger.kernel.org List-ID: Hi Yong, On Thu, Jul 27, 2017 at 01:01:36PM +0800, Yong Deng wrote: > Add binding documentation for Allwinner V3s CSI. > > Signed-off-by: Yong Deng DT bindings should precede the driver. > --- > .../devicetree/bindings/media/sun6i-csi.txt | 49 ++++++++++++++++++++++ > 1 file changed, 49 insertions(+) > create mode 100644 Documentation/devicetree/bindings/media/sun6i-csi.txt > > diff --git a/Documentation/devicetree/bindings/media/sun6i-csi.txt b/Documentation/devicetree/bindings/media/sun6i-csi.txt > new file mode 100644 > index 0000000..f8d83f6 > --- /dev/null > +++ b/Documentation/devicetree/bindings/media/sun6i-csi.txt > @@ -0,0 +1,49 @@ > +Allwinner V3s Camera Sensor Interface > +------------------------------ > + > +Required properties: > + - compatible: value must be "allwinner,sun8i-v3s-csi" What are sun6i and sun8i? Is this device first present in sun6i SoCs, whereas you have only defined bindings for sun8i? > + - reg: base address and size of the memory-mapped region. > + - interrupts: interrupt associated to this IP > + - clocks: phandles to the clocks feeding the CSI > + * ahb: the CSI interface clock > + * mod: the CSI module clock > + * ram: the CSI DRAM clock > + - clock-names: the clock names mentioned above > + - resets: phandles to the reset line driving the CSI > + > +- ports: A ports node with endpoint definitions as defined in > + Documentation/devicetree/bindings/media/video-interfaces.txt. Please document mandatory and optional endpoint properties relevant for the hardware. > + > +Example: > + > + csi1: csi@01cb4000 { > + compatible = "allwinner,sun8i-v3s-csi"; > + reg = <0x01cb4000 0x1000>; > + interrupts = ; > + clocks = <&ccu CLK_BUS_CSI>, > + <&ccu CLK_CSI1_SCLK>, > + <&ccu CLK_DRAM_CSI>; > + clock-names = "ahb", "mod", "ram"; > + resets = <&ccu RST_BUS_CSI>; > + > + port { > + #address-cells = <1>; > + #size-cells = <0>; > + > + /* Parallel bus endpoint */ > + csi1_ep: endpoint { > + remote-endpoint = <&adv7611_ep>; > + bus-width = <16>; > + data-shift = <0>; > + > + /* If hsync-active/vsync-active are missing, > + embedded BT.656 sync is used */ > + hsync-active = <0>; /* Active low */ > + vsync-active = <0>; /* Active low */ > + data-active = <1>; /* Active high */ > + pclk-sample = <1>; /* Rising */ > + }; > + }; > + }; > + -- Kind regards, Sakari Ailus e-mail: sakari.ailus@iki.fi