From patchwork Wed Dec 28 18:30:36 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pavel Machek X-Patchwork-Id: 9490609 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 CFB8360488 for ; Wed, 28 Dec 2016 18:31:40 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7EE47201BC for ; Wed, 28 Dec 2016 18:31:40 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 607B42624D; Wed, 28 Dec 2016 18:31:40 +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, T_TVD_MIME_EPI 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 7AED6201BC for ; Wed, 28 Dec 2016 18:31:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751676AbcL1Sak (ORCPT ); Wed, 28 Dec 2016 13:30:40 -0500 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:49407 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751317AbcL1Saj (ORCPT ); Wed, 28 Dec 2016 13:30:39 -0500 Received: by atrey.karlin.mff.cuni.cz (Postfix, from userid 512) id DC99C824A6; Wed, 28 Dec 2016 19:30:36 +0100 (CET) Date: Wed, 28 Dec 2016 19:30:36 +0100 From: Pavel Machek To: robh+dt@kernel.org, devicetree@vger.kernel.org, ivo.g.dimitrov.75@gmail.com, sakari.ailus@iki.fi, sre@kernel.org, pali.rohar@gmail.com, pavel@ucw.cz, linux-media@vger.kernel.org Subject: [PATCH] dt: bindings: Add support for CSI1 bus Message-ID: <20161228183036.GA13139@amd> MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.5.23 (2014-03-12) 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 From: Sakari Ailus In the vast majority of cases the bus type is known to the driver(s) since a receiver or transmitter can only support a single one. There are cases however where different options are possible. Document the CSI1/CCP2 properties strobe_clk_inv and strobe_clock properties. The former tells whether the strobe/clock signal is inverted, while the latter signifies the clock or strobe mode. Signed-off-by: Sakari Ailus Signed-off-by: Ivaylo Dimitrov Signed-off-by: Pavel Machek diff --git a/Documentation/devicetree/bindings/media/video-interfaces.txt b/Documentation/devicetree/bindings/media/video-interfaces.txt index 9cd2a36..f0523f7 100644 --- a/Documentation/devicetree/bindings/media/video-interfaces.txt +++ b/Documentation/devicetree/bindings/media/video-interfaces.txt @@ -76,6 +76,10 @@ Optional endpoint properties mode horizontal and vertical synchronization signals are provided to the slave device (data source) by the master device (data sink). In the master mode the data source device is also the source of the synchronization signals. +- bus-type: data bus type. Possible values are: + 0 - CSI2 + 1 - parallel / Bt656 + 2 - CCP2 - bus-width: number of data lines actively used, valid for the parallel busses. - data-shift: on the parallel data busses, if bus-width is used to specify the number of data lines, data-shift can be used to specify which data lines are @@ -110,9 +114,10 @@ Optional endpoint properties lane and followed by the data lanes in the same order as in data-lanes. Valid values are 0 (normal) and 1 (inverted). The length of the array should be the combined length of data-lanes and clock-lanes properties. - If the lane-polarities property is omitted, the value must be interpreted - as 0 (normal). This property is valid for serial busses only. - +- clock-inv: Clock or strobe signal inversion. + Possible values: 0 -- not inverted; 1 -- inverted +- strobe: Whether the clock signal is used as clock or strobe. Used + with CCP2, for instance. Example -------