From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vladimir Zapolskiy Subject: Re: [PATCH 4/7] mfd: ds90ux9xx: add TI DS90Ux9xx de-/serializer MFD driver Date: Sat, 13 Oct 2018 15:33:21 +0300 Message-ID: <646af723-b78b-4481-50d9-e1b8f57abd79@mentor.com> References: <20181008211205.2900-1-vz@mleia.com> <20181008211205.2900-5-vz@mleia.com> <20181012060314.GU4939@dell> <63733d2e-f95e-8894-f2b0-0b551b5cfeeb@mentor.com> <20181012083924.GW4939@dell> <506c03d7-7986-44dd-3290-92d16a8106ad@mentor.com> <4a807a53-1592-a895-f140-54e7acc473b3@ideasonboard.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4a807a53-1592-a895-f140-54e7acc473b3@ideasonboard.com> Sender: linux-kernel-owner@vger.kernel.org To: kieran.bingham@ideasonboard.com, Laurent Pinchart Cc: Lee Jones , Vladimir Zapolskiy , Linus Walleij , Rob Herring , Marek Vasut , Wolfram Sang , devicetree@vger.kernel.org, linux-gpio@vger.kernel.org, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: devicetree@vger.kernel.org Hi Kieran, On 10/12/2018 02:47 PM, Kieran Bingham wrote: > Hi Vladimir, > [snip] > > Essentially they are multi purpose buses - which do not yet have a home. > We have used media as a home because of our use case. > > The use case whether they transfer frames from a camera or to a display > are of course closely related, but ultimately covered by two separate > subsystems at the pixel level (DRM vs V4L, or other for other data) > > Perhaps as they are buses - on a level with USB or I2C (except they can > of course carry I2C or Serial as well as 'bi-directional video' etc ), > they are looking for their own subsystem. > > Except I don't think we don't want to add a new subsystem for just one > (or two) devices... > I suppose that the incomplete list includes Maxim GMSL, TI FPD-Link III, SMSC/Microchip MOST (drivers/staging/most -- what's the destination after exiting staging?) an Inova APIX. -- Best wishes, Vladimir