From patchwork Fri May 5 15:31:20 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hugues FRUCHET X-Patchwork-Id: 9713831 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 CB4F460362 for ; Fri, 5 May 2017 15:32:36 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B4E3226530 for ; Fri, 5 May 2017 15:32:36 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A97A127FAD; Fri, 5 May 2017 15:32:36 +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=-1.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 57B9526530 for ; Fri, 5 May 2017 15:32:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=urTIUeYBwEOryB1wEkt8TSHhW1Z2UEcc8F4LgkJjjJE=; b=SZp6WsJM3hHgDK mMjfrai+Z/pabMZi/M3Pbk5FvCtXnHiDS+Rd2WoNua7lFaXBBGnHRvHRecvnalwsMVd+uY3i3+dVv DvjpCz1UcBW5/dIb5fxjwb81EsabR2BzAywJf9xczgpgXWczvZ9KN5VufoiLk0oxAw88xWvDZMbkR b4H39jrFmtbhzRa2bdF6LUMQPhlzFQXBYydSEpku+ciUZGVBVIZti8nA0IquqOr0D/Gu3yD9GqdjZ pcB2aAqSC5p8H0O4m48KRUQRuxMT0g35qDKPyoi+DCRNNJaoE3L01H2cVWCYqxeVAoW2SJo20hpAP JcNVRKIqqPd5L4RokdIg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1d6fDf-0005u0-7l; Fri, 05 May 2017 15:32:35 +0000 Received: from mx08-00178001.pphosted.com ([91.207.212.93] helo=mx07-00178001.pphosted.com) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1d6fDB-0005a6-B5 for linux-arm-kernel@lists.infradead.org; Fri, 05 May 2017 15:32:07 +0000 Received: from pps.filterd (m0046661.ppops.net [127.0.0.1]) by mx08-00178001.pphosted.com (8.16.0.11/8.16.0.11) with SMTP id v45FQ3L3001654; Fri, 5 May 2017 17:31:34 +0200 Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx08-.pphosted.com with ESMTP id 2a84xvxvud-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Fri, 05 May 2017 17:31:34 +0200 Received: from zeta.dmz-eu.st.com (zeta.dmz-eu.st.com [164.129.230.9]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 797B731; Fri, 5 May 2017 15:31:33 +0000 (GMT) Received: from Webmail-eu.st.com (Safex1hubcas23.st.com [10.75.90.46]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 53E7C24E7; Fri, 5 May 2017 15:31:33 +0000 (GMT) Received: from localhost (10.201.23.73) by webmail-ga.st.com (10.75.90.48) with Microsoft SMTP Server (TLS) id 14.3.339.0; Fri, 5 May 2017 17:31:33 +0200 From: Hugues Fruchet To: Rob Herring , Mark Rutland , Maxime Coquelin , Alexandre Torgue , Mauro Carvalho Chehab , Hans Verkuil Subject: [PATCH v5 1/8] dt-bindings: Document STM32 DCMI bindings Date: Fri, 5 May 2017 17:31:20 +0200 Message-ID: <1493998287-5828-2-git-send-email-hugues.fruchet@st.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1493998287-5828-1-git-send-email-hugues.fruchet@st.com> References: <1493998287-5828-1-git-send-email-hugues.fruchet@st.com> MIME-Version: 1.0 X-Originating-IP: [10.201.23.73] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-05-05_12:, , signatures=0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170505_083205_699986_3C4D0710 X-CRM114-Status: GOOD ( 12.66 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Yannick Fertre , Benjamin Gaignard , Hugues Fruchet , linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.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 This adds documentation of device tree bindings for the STM32 DCMI (Digital Camera Memory Interface). Acked-by: Rob Herring Signed-off-by: Hugues Fruchet --- .../devicetree/bindings/media/st,stm32-dcmi.txt | 46 ++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/st,stm32-dcmi.txt diff --git a/Documentation/devicetree/bindings/media/st,stm32-dcmi.txt b/Documentation/devicetree/bindings/media/st,stm32-dcmi.txt new file mode 100644 index 0000000..f8baf65 --- /dev/null +++ b/Documentation/devicetree/bindings/media/st,stm32-dcmi.txt @@ -0,0 +1,46 @@ +STMicroelectronics STM32 Digital Camera Memory Interface (DCMI) + +Required properties: +- compatible: "st,stm32-dcmi" +- reg: physical base address and length of the registers set for the device +- interrupts: should contain IRQ line for the DCMI +- resets: reference to a reset controller, + see Documentation/devicetree/bindings/reset/st,stm32-rcc.txt +- clocks: list of clock specifiers, corresponding to entries in + the clock-names property +- clock-names: must contain "mclk", which is the DCMI peripherial clock +- pinctrl: the pincontrol settings to configure muxing properly + for pins that connect to DCMI device. + See Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.txt. +- dmas: phandle to DMA controller node, + see Documentation/devicetree/bindings/dma/stm32-dma.txt +- dma-names: must contain "tx", which is the transmit channel from DCMI to DMA + +DCMI 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: + + dcmi: dcmi@50050000 { + compatible = "st,stm32-dcmi"; + reg = <0x50050000 0x400>; + interrupts = <78>; + resets = <&rcc STM32F4_AHB2_RESET(DCMI)>; + clocks = <&rcc 0 STM32F4_AHB2_CLOCK(DCMI)>; + clock-names = "mclk"; + pinctrl-names = "default"; + pinctrl-0 = <&dcmi_pins>; + dmas = <&dma2 1 1 0x414 0x3>; + dma-names = "tx"; + port { + dcmi_0: endpoint { + remote-endpoint = <...>; + bus-width = <8>; + hsync-active = <0>; + vsync-active = <0>; + pclk-sample = <1>; + }; + }; + }; +