Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752804AbdLKTGD (ORCPT ); Mon, 11 Dec 2017 14:06:03 -0500 Received: from mail-wm0-f44.google.com ([74.125.82.44]:46508 "EHLO mail-wm0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752650AbdLKTF7 (ORCPT ); Mon, 11 Dec 2017 14:05:59 -0500 X-Google-Smtp-Source: ACJfBouGAEAP4cL2oPXsH46M9quaCJa+U9rFf2+zRTtNXDFGMHV1ChZJob4wxNgRtitbmvvzd7I5Al1QfOm3PWWTNAk= MIME-Version: 1.0 In-Reply-To: References: From: Philippe Ombredanne Date: Mon, 11 Dec 2017 20:05:17 +0100 Message-ID: Subject: Re: [PATCH v10 3/4] [media] platform: Add Synopsys DesignWare HDMI RX PHY e405 Driver To: Jose Abreu Cc: Linux Media Mailing List , LKML , Joao Pinto , Mauro Carvalho Chehab , Hans Verkuil , Sylwester Nawrocki Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1566 Lines: 37 On Mon, Dec 11, 2017 at 6:41 PM, Jose Abreu wrote: > This adds support for the Synopsys DesignWare HDMI RX PHY e405. This > phy receives and decodes HDMI video that is delivered to a controller. > > Main features included in this driver are: > - Equalizer algorithm that chooses the phy best settings > according to the detected HDMI cable characteristics. > - Support for scrambling > - Support for HDMI 2.0 modes up to 6G (HDMI 4k@60Hz). > > The driver was implemented as a standalone V4L2 subdevice and the > phy interface with the controller was implemented using V4L2 ioctls. I > do not know if this is the best option but it is not possible to use the > existing API functions directly as we need specific functions that will > be called by the controller at specific configuration stages. > > There is also a bidirectional communication between controller and phy: > The phy must provide functions that the controller will call (i.e. > configuration functions) and the controller must provide read/write > callbacks, as well as other specific functions. > > Signed-off-by: Jose Abreu > Cc: Joao Pinto > Cc: Mauro Carvalho Chehab > Cc: Hans Verkuil > Cc: Sylwester Nawrocki > Cc: Philippe Ombredanne > --- > Changes from v9: > - Use SPDX License ID (Philippe) Acked-by: Philippe Ombredanne Thanks! -- Cordially Philippe Ombredanne