From patchwork Tue Apr 4 15:44:31 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hugues FRUCHET X-Patchwork-Id: 9661951 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 425F6602B9 for ; Tue, 4 Apr 2017 15:48:47 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2F48427F95 for ; Tue, 4 Apr 2017 15:48:47 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2173E27FBE; Tue, 4 Apr 2017 15:48:47 +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=unavailable 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 AB30427F95 for ; Tue, 4 Apr 2017 15:48:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754804AbdDDPpb (ORCPT ); Tue, 4 Apr 2017 11:45:31 -0400 Received: from mx07-00178001.pphosted.com ([62.209.51.94]:31462 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754292AbdDDPp3 (ORCPT ); Tue, 4 Apr 2017 11:45:29 -0400 Received: from pps.filterd (m0046037.ppops.net [127.0.0.1]) by m0046037.ppops.net (8.16.0.11/8.16.0.11) with SMTP id v34FTU4R028336; Tue, 4 Apr 2017 17:44:55 +0200 Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-.pphosted.com with ESMTP id 29j1yq4a6f-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Tue, 04 Apr 2017 17:44:55 +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 DA28C38; Tue, 4 Apr 2017 15:44:54 +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 ACFA22ADD; Tue, 4 Apr 2017 15:44:54 +0000 (GMT) Received: from localhost (10.201.23.73) by webmail-ga.st.com (10.75.90.48) with Microsoft SMTP Server (TLS) id 14.3.319.2; Tue, 4 Apr 2017 17:44:54 +0200 From: Hugues Fruchet To: Rob Herring , Mark Rutland , Maxime Coquelin , Alexandre Torgue , Mauro Carvalho Chehab , Hans Verkuil CC: , , , , Benjamin Gaignard , Yannick Fertre , Hugues Fruchet Subject: [PATCH v3 1/8] dt-bindings: Document STM32 DCMI bindings Date: Tue, 4 Apr 2017 17:44:31 +0200 Message-ID: <1491320678-17246-2-git-send-email-hugues.fruchet@st.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1491320678-17246-1-git-send-email-hugues.fruchet@st.com> References: <1491320678-17246-1-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=2017-04-04_12:, , signatures=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 This adds documentation of device tree bindings for the STM32 DCMI (Digital Camera Memory Interface). Signed-off-by: Hugues Fruchet Acked-by: Rob Herring --- .../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..c0f6f4b --- /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@0 { + remote-endpoint = <...>; + bus-width = <8>; + hsync-active = <0>; + vsync-active = <0>; + pclk-sample = <1>; + }; + }; + }; +