From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EE8AAC31E48 for ; Wed, 12 Jun 2019 12:48:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BF3FA208C2 for ; Wed, 12 Jun 2019 12:48:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="cUYNm5og" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2409131AbfFLMsa (ORCPT ); Wed, 12 Jun 2019 08:48:30 -0400 Received: from fllv0015.ext.ti.com ([198.47.19.141]:42390 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2406354AbfFLMs3 (ORCPT ); Wed, 12 Jun 2019 08:48:29 -0400 Received: from lelv0266.itg.ti.com ([10.180.67.225]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id x5CCmKOd062918; Wed, 12 Jun 2019 07:48:20 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1560343700; bh=VNAzdfRr5Fo8LME/5hfg26/21196dpOni0yCTYzdhNs=; h=Subject:To:CC:References:From:Date:In-Reply-To; b=cUYNm5ogyS/hT31gT74CvW3Ygh9wmCj6iK9TLIUIzKS9nCEbFhnQ1Cojp0L1D/i/w e7+FAC+GtQCqSjeKMpeysHvxll9o9VvQhjA3CO5eRgUOWC3da+fofx/+/X79fSI8q4 bGS4CbzH3aCiXntpQE636tUOsuf14QCg7wjbkV3o= Received: from DLEE102.ent.ti.com (dlee102.ent.ti.com [157.170.170.32]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id x5CCmKfd063889 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 12 Jun 2019 07:48:20 -0500 Received: from DLEE106.ent.ti.com (157.170.170.36) by DLEE102.ent.ti.com (157.170.170.32) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5; Wed, 12 Jun 2019 07:48:19 -0500 Received: from fllv0040.itg.ti.com (10.64.41.20) by DLEE106.ent.ti.com (157.170.170.36) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5 via Frontend Transport; Wed, 12 Jun 2019 07:48:19 -0500 Received: from [192.168.2.6] (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0040.itg.ti.com (8.15.2/8.15.2) with ESMTP id x5CCmHB8038159; Wed, 12 Jun 2019 07:48:17 -0500 Subject: Re: [PATCH v5 10/15] drm/bridge: tc358767: Add support for address-only I2C transfers To: Andrey Smirnov , CC: Andrzej Hajda , Laurent Pinchart , Andrey Gusakov , Philipp Zabel , Cory Tusar , Chris Healy , Lucas Stach , References: <20190612083252.15321-1-andrew.smirnov@gmail.com> <20190612083252.15321-11-andrew.smirnov@gmail.com> From: Tomi Valkeinen Message-ID: Date: Wed, 12 Jun 2019 15:48:17 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 MIME-Version: 1.0 In-Reply-To: <20190612083252.15321-11-andrew.smirnov@gmail.com> Content-Type: text/plain; charset="utf-8"; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, On 12/06/2019 11:32, Andrey Smirnov wrote: > Transfer size of zero means a request to do an address-only > transfer. Since the HW support this, we probably shouldn't be just > ignoring such requests. While at it allow DP_AUX_I2C_MOT flag to pass > through, since it is supported by the HW as well. I bisected the EDID read issue to this patch... Tomi -- Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki