From patchwork Thu Sep 27 14:46:06 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hugues FRUCHET X-Patchwork-Id: 52253 X-Patchwork-Delegate: sakari.ailus@iki.fi Received: from vger.kernel.org ([209.132.180.67]) by www.linuxtv.org with esmtp (Exim 4.84_2) (envelope-from ) id 1g5XYm-0003Ll-Vo; Thu, 27 Sep 2018 14:46:33 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727621AbeI0VFE (ORCPT + 1 other); Thu, 27 Sep 2018 17:05:04 -0400 Received: from mx07-00178001.pphosted.com ([62.209.51.94]:48166 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727541AbeI0VFD (ORCPT ); Thu, 27 Sep 2018 17:05:03 -0400 Received: from pps.filterd (m0046668.ppops.net [127.0.0.1]) by mx07-.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id w8REd0KU009398; Thu, 27 Sep 2018 16:46:17 +0200 Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 2mnb6xugs0-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Thu, 27 Sep 2018 16:46:17 +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 24EF134; Thu, 27 Sep 2018 14:46:16 +0000 (GMT) Received: from Webmail-eu.st.com (Safex1hubcas22.st.com [10.75.90.92]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id F0C2E4E0A; Thu, 27 Sep 2018 14:46:15 +0000 (GMT) Received: from SAFEX1HUBCAS23.st.com (10.75.90.46) by Safex1hubcas22.st.com (10.75.90.92) with Microsoft SMTP Server (TLS) id 14.3.361.1; Thu, 27 Sep 2018 16:46:15 +0200 Received: from localhost (10.201.23.73) by webmail-ga.st.com (10.75.90.48) with Microsoft SMTP Server (TLS) id 14.3.361.1; Thu, 27 Sep 2018 16:46:15 +0200 From: Hugues Fruchet To: Steve Longerbeam , Sakari Ailus , Hans Verkuil , "Mauro Carvalho Chehab" , Rob Herring , Mark Rutland , Maxime Ripard CC: , , , Hugues Fruchet , Benjamin Gaignard , Jacopo Mondi Subject: [PATCH 3/4] media: dt-bindings: media: Document pclk-max-frequency property Date: Thu, 27 Sep 2018 16:46:06 +0200 Message-ID: <1538059567-8381-4-git-send-email-hugues.fruchet@st.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1538059567-8381-1-git-send-email-hugues.fruchet@st.com> References: <1538059567-8381-1-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=2.50.10434:, , definitions=2018-09-27_07:, , signatures=0 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org This optional property aims to inform parallel video devices of the maximum pixel clock frequency admissible by host video interface. If bandwidth of data to be transferred requires a pixel clock which is higher than this value, parallel video device could then typically adapt framerate to reach this constraint. Signed-off-by: Hugues Fruchet --- Documentation/devicetree/bindings/media/video-interfaces.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/media/video-interfaces.txt b/Documentation/devicetree/bindings/media/video-interfaces.txt index baf9d97..fa4c112 100644 --- a/Documentation/devicetree/bindings/media/video-interfaces.txt +++ b/Documentation/devicetree/bindings/media/video-interfaces.txt @@ -147,6 +147,8 @@ Optional endpoint properties as 0 (normal). This property is valid for serial busses only. - strobe: Whether the clock signal is used as clock (0) or strobe (1). Used with CCP2, for instance. +- pclk-max-frequency: maximum pixel clock frequency admissible by video + host interface. Example -------