From patchwork Thu Feb 20 19:40:29 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sylwester Nawrocki X-Patchwork-Id: 22410 X-Patchwork-Delegate: sylvester.nawrocki@gmail.com Received: from mail.tu-berlin.de ([130.149.7.33]) by www.linuxtv.org with esmtp (Exim 4.72) (envelope-from ) id 1WGZUh-0001jH-6f; Thu, 20 Feb 2014 20:41:15 +0100 X-tubIT-Incoming-IP: 209.132.180.67 Received: from vger.kernel.org ([209.132.180.67]) by mail.tu-berlin.de (exim-4.72/mailfrontend-7) with esmtp id 1WGZUf-0002BD-0M; Thu, 20 Feb 2014 20:41:15 +0100 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754355AbaBTTlK (ORCPT + 1 other); Thu, 20 Feb 2014 14:41:10 -0500 Received: from mailout2.samsung.com ([203.254.224.25]:60849 "EHLO mailout2.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753715AbaBTTlH (ORCPT ); Thu, 20 Feb 2014 14:41:07 -0500 Received: from epcpsbgm1.samsung.com (epcpsbgm1 [203.254.230.26]) by mailout2.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0N1B00MYS80IQLB0@mailout2.samsung.com>; Fri, 21 Feb 2014 04:41:06 +0900 (KST) X-AuditID: cbfee61a-b7fb26d00000724f-c5-53065a51eda1 Received: from epmmp2 ( [203.254.227.17]) by epcpsbgm1.samsung.com (EPCPMTA) with SMTP id 2B.35.29263.15A56035; Fri, 21 Feb 2014 04:41:06 +0900 (KST) Received: from amdc1344.digital.local ([106.116.147.32]) by mmp2.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0N1B00BU37ZVIS60@mmp2.samsung.com>; Fri, 21 Feb 2014 04:41:05 +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 v4 02/10] Documentation: dt: Add DT binding documentation for S5C73M3 camera Date: Thu, 20 Feb 2014 20:40:29 +0100 Message-id: <1392925237-31394-4-git-send-email-s.nawrocki@samsung.com> X-Mailer: git-send-email 1.7.9.5 In-reply-to: <1392925237-31394-1-git-send-email-s.nawrocki@samsung.com> References: <1392925237-31394-1-git-send-email-s.nawrocki@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrNLMWRmVeSWpSXmKPExsVy+t9jQd2gKLZgg1OHmS1urTvHajH/CJDo f7OQ1aJ3wVU2i7NNb9gtNj2+xmrRs2Erq8WM8/uYLJZev8hk0br3CLvF4TftrA7cHmvmrWH0 uNzXy+SxaVUnm8fmJfUefVtWMXp83iQXwBbFZZOSmpNZllqkb5fAlXHj6wrWgvWKFZNfXmFs YPwq1cXIySEhYCJxfvMFZghbTOLCvfVsXYxcHEIC0xklTk75BuV0MEm0X9kBVsUmYCjRe7SP EcQWEbCWOP7hGDtIEbNAK5NE546bbCAJYYE4iXd/L7GA2CwCqhJz2z+ANfAKuEkc2/gWqIED aJ2CxJxJNiBhTgF3iSnHHzKDhIWASi6+15rAyLuAkWEVo2hqQXJBcVJ6rqFecWJucWleul5y fu4mRnAQPpPawbiyweIQowAHoxIP7wkptmAh1sSy4srcQ4wSHMxKIrxNNkAh3pTEyqrUovz4 otKc1OJDjNIcLErivAdarQOFBNITS1KzU1MLUotgskwcnFINjMonja963ypKXb3B4qTCP+27 my+qXj2fP4upwo8xTKA86nxEsWep7bZjO68vbHnH+ZClYbHW05ivO5dtP9R2/v7HdV7Tdz/c X/ciOm711OC1ZUut03miBK2vHMuYOPv7d701i+sPfTi03+LfghUSjk8D1J10Yp/KyiT9+Rpb 9za3zeX3n/V76yKVWIozEg21mIuKEwE3Q2gvPgIAAA== Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-PMX-Version: 6.0.0.2142326, Antispam-Engine: 2.7.2.2107409, Antispam-Data: 2014.2.20.193314 X-PMX-Spam: Gauge=IIIIIIII, Probability=8%, Report=' MULTIPLE_RCPTS 0.1, HTML_00_01 0.05, HTML_00_10 0.05, BODY_SIZE_4000_4999 0, BODY_SIZE_5000_LESS 0, BODY_SIZE_7000_LESS 0, CHILD_EX_X3 0, URI_ENDS_IN_HTML 0, __ANY_URI 0, __CP_MEDIA_BODY 0, __CP_NAME_BODY 0, __CP_URI_IN_BODY 0, __HAS_FROM 0, __HAS_MSGID 0, __HAS_X_MAILER 0, __HAS_X_MAILING_LIST 0, __IN_REP_TO 0, __MIME_TEXT_ONLY 0, __MULTIPLE_RCPTS_CC_X2 0, __SANE_MSGID 0, __SUBJ_ALPHA_END 0, __SXL_FUR_ERROR_SERVFAIL , __SXL_RIP_ERROR_SERVFAIL , __SXL_SIG_ERROR_SERVFAIL , __TO_MALFORMED_2 0, __TO_NO_NAME 0, __URI_NO_WWW 0, __URI_NS ' 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 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..4dd3776 --- /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 { + compatible = "samsung,s5c73m3"; + reg = <0>; + ... + }; +};