linux-kernel - Re: [PATCH v7 0/9] drm/omap: Add virtual-planes support

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Message-ID: <71f01ce0-bc1d-0ac0-9bf2-7f2c3738eeaa@baylibre.com>
Date:   Fri, 3 Dec 2021 16:09:42 +0100
From:   Neil Armstrong <narmstrong@...libre.com>
To:     Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
Cc:     linux-omap@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, khilman@...libre.com
Subject: Re: [PATCH v7 0/9] drm/omap: Add virtual-planes support

Hi,

On 03/12/2021 12:31, Tomi Valkeinen wrote:
> On 17/11/2021 16:19, Neil Armstrong wrote:
>> This patchset is the follow-up the v4 patchset from Benoit Parrot at [1].
>>
>> This patch series adds virtual-plane support to omapdrm driver to allow the use
>> of display wider than 2048 pixels.
>>
>> In order to do so we introduce the concept of hw_overlay which can then be
>> dynamically allocated to a plane. When the requested output width exceed what
>> be supported by one overlay a second is then allocated if possible to handle
>> display wider then 2048.
>>
>> This series replaces an earlier series which was DT based and using statically
>> allocated resources.
>>
>> This implementation is inspired from the work done in msm/disp/mdp5
>> driver.
> 
> I think this looks good. I'll apply this to my work tree to see if I see any issues during my daily work, and if not, I'll push to drm-misc-next.
> 
> Have you tested this with other platforms than x15? I'm mostly thinking about omap3/4, as the DSS is somewhat different on those platforms.

I haven't tested the last version non non-x15, but I haven't changed the logic from the original patchset which was in the TI BSP
tree for multiple years.

Neil

> 
>  Tomi