linux-kernel - Re: [PATCH v8 0/4] drm/atmel-hlcdc: bus-width override support

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Message-ID: <da750a67-8739-9153-72a7-7c7efd0ed7ec@axentia.se>
Date:   Fri, 24 Aug 2018 09:59:11 +0200
From:   Peter Rosin <peda@...ntia.se>
To:     Boris Brezillon <boris.brezillon@...tlin.com>
Cc:     linux-kernel@...r.kernel.org, David Airlie <airlied@...ux.ie>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, Jyri Sarha <jsarha@...com>,
        Daniel Vetter <daniel@...ll.ch>,
        Andrzej Hajda <a.hajda@...sung.com>,
        Russell King - ARM Linux <linux@...linux.org.uk>,
        Jacopo Mondi <jacopo+renesas@...ndi.org>,
        Sakari Ailus <sakari.ailus@....fi>
Subject: Re: [PATCH v8 0/4] drm/atmel-hlcdc: bus-width override support

On 2018-08-24 09:51, Boris Brezillon wrote:
> Hi Peter,
> 
> On Fri, 10 Aug 2018 15:03:55 +0200
> Peter Rosin <peda@...ntia.se> wrote:
> 
>> Hi!
>>
>> The background for these patches is that our PCB interface between
>> the SAMA5D3 and the ds90c185 lvds encoder is only using 16 bits, and
>> this has to be described somewhere, or the atmel-hlcdc driver have no
>> chance of selecting the correct output mode. Since we have similar
>> problems with a tda19988 HDMI encoder I added patches to override
>> the atmel-hlcdc output format via DT properties compatible with the
>> media video-interface binding and things start to play together.
>>
>> Cheers,
>> Peter
>>
>> Changes since v7  https://lkml.org/lkml/2018/8/4/288
>> - The ep device_node was leaked in v7 patch 3/3, so add patch 3/4
>>   which simplifies fixing this in patch 4/4 (and adds flexibility)
>>   and adjust patch 4/4 to the changes done in the new 3/4.
>> - return -ENOMEM on allocation failure in patch 4/4
> 
> I stopped following the discussion at some point. Are there any open
> issues or Ack you're waiting for?

The only worry is the silence from Rob on that multiple-endpoint
discussion. Since I don't really care deeply, my plan was fix up
the of_node leak in v7 without using of_graph_parse_endpoint. I.e.
drop 3/4.

But I would have prefer Rob to add some final opinion instead of the
discussion petering out like it did.

Cheers,
Peter