From patchwork Thu Aug 11 07:06:42 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Songjun Wu X-Patchwork-Id: 9274537 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 DA1E86022E for ; Thu, 11 Aug 2016 07:20:11 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C0BEC284A9 for ; Thu, 11 Aug 2016 07:20:07 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B182F2851C; Thu, 11 Aug 2016 07:20:07 +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=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 368CF284A9 for ; Thu, 11 Aug 2016 07:20:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932570AbcHKHTv (ORCPT ); Thu, 11 Aug 2016 03:19:51 -0400 Received: from exsmtp03.microchip.com ([198.175.253.49]:24344 "EHLO email.microchip.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S932310AbcHKHTi (ORCPT ); Thu, 11 Aug 2016 03:19:38 -0400 Received: from shaarm01.corp.atmel.com (10.10.76.4) by chn-sv-exch03.mchp-main.com (10.10.76.49) with Microsoft SMTP Server id 14.3.181.6; Thu, 11 Aug 2016 00:19:35 -0700 From: Songjun Wu To: , CC: , , , Songjun Wu , , Mark Rutland , Rob Herring , Subject: [PATCH v9 2/2] [media] atmel-isc: DT binding for Image Sensor Controller driver Date: Thu, 11 Aug 2016 15:06:42 +0800 Message-ID: <1470899202-13933-3-git-send-email-songjun.wu@microchip.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1470899202-13933-1-git-send-email-songjun.wu@microchip.com> References: <1470899202-13933-1-git-send-email-songjun.wu@microchip.com> MIME-Version: 1.0 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP DT binding documentation for ISC driver. Acked-by: Rob Herring Signed-off-by: Songjun Wu --- Changes in v9: None Changes in v8: None Changes in v7: None Changes in v6: - Add "iscck" and "gck" to clock-names. Changes in v5: - Add clock-output-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 | 65 ++++++++++++++++++++++ 1 file changed, 65 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..bbe0e87c --- /dev/null +++ b/Documentation/devicetree/bindings/media/atmel-isc.txt @@ -0,0 +1,65 @@ +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", "iscck", "gck". +- #clock-cells + Should be 0. +- clock-output-names + Should be "isc-mck". +- 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>; + }; + }; + }; +};