From patchwork Fri Jun 17 08:57:14 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Songjun Wu X-Patchwork-Id: 9183099 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 0B11460776 for ; Fri, 17 Jun 2016 09:09:40 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E52771FEDE for ; Fri, 17 Jun 2016 09:09:39 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D9DB627E33; Fri, 17 Jun 2016 09:09:39 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 6E31A1FEDE for ; Fri, 17 Jun 2016 09:09:39 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1bDplG-0002Ul-1i; Fri, 17 Jun 2016 09:08:22 +0000 Received: from nasmtp01.atmel.com ([192.199.1.245] helo=ussmtp01.atmel.com) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1bDpl0-0002Jo-J4 for linux-arm-kernel@lists.infradead.org; Fri, 17 Jun 2016 09:08:07 +0000 Received: from sjogate2.atmel.com (10.42.103.223) by DVREDG01.corp.atmel.com (10.42.103.30) with Microsoft SMTP Server id 14.3.235.1; Fri, 17 Jun 2016 03:07:51 -0600 Received: from shaarm01.corp.atmel.com (shaarm01.corp.atmel.com [10.217.6.34]) by sjogate2.atmel.com (8.13.6/8.13.6) with ESMTP id u5H8v3pi011561; Fri, 17 Jun 2016 01:57:34 -0700 (PDT) From: Songjun Wu To: , , , , Subject: [PATCH v5 2/2] [media] atmel-isc: DT binding for Image Sensor Controller driver Date: Fri, 17 Jun 2016 16:57:14 +0800 Message-ID: <1466153854-30272-3-git-send-email-songjun.wu@atmel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1466153854-30272-1-git-send-email-songjun.wu@atmel.com> References: <1466153854-30272-1-git-send-email-songjun.wu@atmel.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160617_020806_886406_F55734A9 X-CRM114-Status: GOOD ( 11.88 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , devicetree@vger.kernel.org, Pawel Moll , Ian Campbell , linux-kernel@vger.kernel.org, Rob Herring , Songjun Wu , Kumar Gala , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP DT binding documentation for ISC driver. Signed-off-by: Songjun Wu --- Changes in v5: - Add clock names. Changes in v4: - Remove the isc clock nodes. Changes in v3: - Remove the 'atmel,sensor-preferred'. - Modify the isc clock node according to the Rob's remarks. Changes in v2: - Remove the unit address of the endpoint. - Add the unit address to the clock node. - Avoid using underscores in node names. - Drop the "0x" in the unit address of the i2c node. - Modify the description of 'atmel,sensor-preferred'. - Add the description for the ISC internal clock. .../devicetree/bindings/media/atmel-isc.txt | 64 ++++++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/atmel-isc.txt diff --git a/Documentation/devicetree/bindings/media/atmel-isc.txt b/Documentation/devicetree/bindings/media/atmel-isc.txt new file mode 100644 index 0000000..9558a77 --- /dev/null +++ b/Documentation/devicetree/bindings/media/atmel-isc.txt @@ -0,0 +1,64 @@ +Atmel Image Sensor Controller (ISC) +---------------------------------------------- + +Required properties for ISC: +- compatible + Must be "atmel,sama5d2-isc". +- reg + Physical base address and length of the registers set for the device. +- interrupts + Should contain IRQ line for the ISC. +- clocks + List of clock specifiers, corresponding to entries in + the clock-names property; + Please refer to clock-bindings.txt. +- clock-names + Required elements: "hclock". +- #clock-cells + Should be 0. +- clock-output-names + Should contain the name of the clock driving the sensor master clock. +- pinctrl-names, pinctrl-0 + Please refer to pinctrl-bindings.txt. + +ISC supports a single port node with parallel bus. It should contain one +'port' child node with child 'endpoint' node. Please refer to the bindings +defined in Documentation/devicetree/bindings/media/video-interfaces.txt. + +Example: +isc: isc@f0008000 { + compatible = "atmel,sama5d2-isc"; + reg = <0xf0008000 0x4000>; + interrupts = <46 IRQ_TYPE_LEVEL_HIGH 5>; + clocks = <&isc_clk>, <&iscck>, <&isc_gclk>; + clock-names = "hclock", "iscck", "gck"; + #clock-cells = <0>; + clock-output-names = "isc-mck"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_isc_base &pinctrl_isc_data_8bit &pinctrl_isc_data_9_10 &pinctrl_isc_data_11_12>; + + port { + isc_0: endpoint { + remote-endpoint = <&ov7740_0>; + hsync-active = <1>; + vsync-active = <0>; + pclk-sample = <1>; + }; + }; +}; + +i2c1: i2c@fc028000 { + ov7740: camera@21 { + compatible = "ovti,ov7740"; + reg = <0x21>; + clocks = <&isc>; + clock-names = "xvclk"; + assigned-clocks = <&isc>; + assigned-clock-rates = <24000000>; + + port { + ov7740_0: endpoint { + remote-endpoint = <&isc_0>; + }; + }; +};