From patchwork Thu Mar 6 16:20:11 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Sylwester Nawrocki/Kernel \\(PLT\\) /SRPOL/Staff Engineer/Samsung Electronics" X-Patchwork-Id: 3785001 Return-Path: X-Original-To: patchwork-linux-samsung-soc@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 4C62A9F35F for ; Thu, 6 Mar 2014 16:22:00 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 565E0201BA for ; Thu, 6 Mar 2014 16:21:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6468D201E7 for ; Thu, 6 Mar 2014 16:21:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753277AbaCFQVw (ORCPT ); Thu, 6 Mar 2014 11:21:52 -0500 Received: from mailout3.samsung.com ([203.254.224.33]:43853 "EHLO mailout3.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753232AbaCFQVu (ORCPT ); Thu, 6 Mar 2014 11:21:50 -0500 Received: from epcpsbgm1.samsung.com (epcpsbgm1 [203.254.230.26]) by mailout3.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0N20004C8W4DMQA0@mailout3.samsung.com>; Fri, 07 Mar 2014 01:21:49 +0900 (KST) X-AuditID: cbfee61a-b7fb26d00000724f-8d-5318a09d55dd Received: from epmmp1.local.host ( [203.254.227.16]) by epcpsbgm1.samsung.com (EPCPMTA) with SMTP id 75.CC.29263.D90A8135; Fri, 07 Mar 2014 01:21:49 +0900 (KST) Received: from amdc1344.digital.local ([106.116.147.32]) by mmp1.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0N2000GKMW21L980@mmp1.samsung.com>; Fri, 07 Mar 2014 01:21:49 +0900 (KST) From: Sylwester Nawrocki To: linux-media@vger.kernel.org, devicetree@vger.kernel.org Cc: linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, robh+dt@kernel.org, mark.rutland@arm.com, galak@codeaurora.org, kyungmin.park@samsung.com, kgene.kim@samsung.com, a.hajda@samsung.com, Sylwester Nawrocki Subject: [PATCH v6 02/10] Documentation: dt: Add binding documentation for S5C73M3 camera Date: Thu, 06 Mar 2014 17:20:11 +0100 Message-id: <1394122819-9582-3-git-send-email-s.nawrocki@samsung.com> X-Mailer: git-send-email 1.7.9.5 In-reply-to: <1394122819-9582-1-git-send-email-s.nawrocki@samsung.com> References: <1394122819-9582-1-git-send-email-s.nawrocki@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrDLMWRmVeSWpSXmKPExsVy+t9jAd25CySCDXatFbW4te4cq8X8I0Ci /81CVoveBVfZLM42vWG32PT4GqtFz4atrBYzzu9jslh6/SKTReveI+wWh9+0szpwe6yZt4bR 43JfL5PHplWdbB6bl9R79G1ZxejxeZNcAFsUl01Kak5mWWqRvl0CV0bn1JXsBZeVKtYsmcPU wPhDuouRk0NCwERi0ttJ7BC2mMSFe+vZuhi5OIQEFjFKnDy+GcrpYJJ4sW0JC0gVm4ChRO/R PkYQW0TAWuL4h2PsIEXMAq1MEp07brKBJIQFoiWWXZgFZrMIqEps6GsEa+AVcJWY+XgDUAMH 0DoFiTmTbEDCnAJuEvtOngcrFwIqub/uI9MERt4FjAyrGEVTC5ILipPScw31ihNzi0vz0vWS 83M3MYLD8JnUDsaVDRaHGAU4GJV4eDf4iQcLsSaWFVfmHmKU4GBWEuGtnCsRLMSbklhZlVqU H19UmpNafIhRmoNFSZz3QKt1oJBAemJJanZqakFqEUyWiYNTqoFR5VFT/vwklRus2TK35zwU c60U2X7o2aSQolrnDU8XnG9XYOLg5XlY+SHb913nT8Uv7+0e8wd8uHqQZQ/vtDfLu59b8ggF Vn0T4gy5LLEwxPKs3MIcq3N9nh8uHnzaIz2lZXZAKWd/fOaHlPIVfk86nnb2G7wWC3jPVnZL 7/aPGxnLv8y9dFVGiaU4I9FQi7moOBEAoEXHgT8CAAA= Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This adds DT binding documentation for Samsung S5C73M3 camera sensor with an embedded ISP. Signed-off-by: Sylwester Nawrocki Acked-by: Kyungmin Park Acked-by: Mark Rutland --- Changes since v5: - none. Changes since v4: - added missing unit-address at the example SPI device node; Changes since v3: - DT binding documentation separated into this patch; Changes since v2: - rephrased 'clocks' and 'clock-names' properties' description; --- .../devicetree/bindings/media/samsung-s5c73m3.txt | 97 ++++++++++++++++++++ 1 file changed, 97 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/samsung-s5c73m3.txt diff --git a/Documentation/devicetree/bindings/media/samsung-s5c73m3.txt b/Documentation/devicetree/bindings/media/samsung-s5c73m3.txt new file mode 100644 index 0000000..2c85c45 --- /dev/null +++ b/Documentation/devicetree/bindings/media/samsung-s5c73m3.txt @@ -0,0 +1,97 @@ +Samsung S5C73M3 8Mp camera ISP +------------------------------ + +The S5C73M3 camera ISP supports MIPI CSI-2 and parallel (ITU-R BT.656) video +data busses. The I2C bus is the main control bus and additionally the SPI bus +is used, mostly for transferring the firmware to and from the device. Two +slave device nodes corresponding to these control bus interfaces are required +and should be placed under respective bus controller nodes. + +I2C slave device node +--------------------- + +Required properties: + +- compatible : "samsung,s5c73m3"; +- reg : I2C slave address of the sensor; +- vdd-int-supply : digital power supply (1.2V); +- vdda-supply : analog power supply (1.2V); +- vdd-reg-supply : regulator input power supply (2.8V); +- vddio-host-supply : host I/O power supply (1.8V to 2.8V); +- vddio-cis-supply : CIS I/O power supply (1.2V to 1.8V); +- vdd-af-supply : lens power supply (2.8V); +- xshutdown-gpios : specifier of GPIO connected to the XSHUTDOWN pin; +- standby-gpios : specifier of GPIO connected to the STANDBY pin; +- clocks : should contain list of phandle and clock specifier pairs + according to common clock bindings for the clocks described + in the clock-names property; +- clock-names : should contain "cis_extclk" entry for the CIS_EXTCLK clock; + +Optional properties: + +- clock-frequency : the frequency at which the "cis_extclk" clock should be + configured to operate, in Hz; if this property is not + specified default 24 MHz value will be used. + +The common video interfaces bindings (see video-interfaces.txt) should be used +to specify link from the S5C73M3 to an external image data receiver. The S5C73M3 +device node should contain one 'port' child node with an 'endpoint' subnode for +this purpose. The data link from a raw image sensor to the S5C73M3 can be +similarly specified, but it is optional since the S5C73M3 ISP and a raw image +sensor are usually inseparable and form a hybrid module. + +Following properties are valid for the endpoint node(s): + +endpoint subnode +---------------- + +- data-lanes : (optional) specifies MIPI CSI-2 data lanes as covered in + video-interfaces.txt. This sensor doesn't support data lane remapping + and physical lane indexes in subsequent elements of the array should + be only consecutive ascending values. + +SPI device node +--------------- + +Required properties: + +- compatible : "samsung,s5c73m3"; + +For more details see description of the SPI busses bindings +(../spi/spi-bus.txt) and bindings of a specific bus controller. + +Example: + +i2c@138A000000 { + ... + s5c73m3@3c { + compatible = "samsung,s5c73m3"; + reg = <0x3c>; + vdd-int-supply = <&buck9_reg>; + vdda-supply = <&ldo17_reg>; + vdd-reg-supply = <&cam_io_reg>; + vddio-host-supply = <&ldo18_reg>; + vddio-cis-supply = <&ldo9_reg>; + vdd-af-supply = <&cam_af_reg>; + clock-frequency = <24000000>; + clocks = <&clk 0>; + clock-names = "cis_extclk"; + reset-gpios = <&gpf1 3 1>; + standby-gpios = <&gpm0 1 1>; + port { + s5c73m3_ep: endpoint { + remote-endpoint = <&csis0_ep>; + data-lanes = <1 2 3 4>; + }; + }; + }; +}; + +spi@1392000 { + ... + s5c73m3_spi: s5c73m3@0 { + compatible = "samsung,s5c73m3"; + reg = <0>; + ... + }; +};