linux-kernel - Re: [PATCH v3 0/3] Add additional YUV420 bus format check for dw-meson's bridge enable

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Date:   Tue, 27 Jun 2023 09:54:19 +0200
From:   Neil Armstrong <neil.armstrong@...aro.org>
To:     Andrzej Hajda <andrzej.hajda@...el.com>,
        Robert Foss <rfoss@...nel.org>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Jonas Karlman <jonas@...boo.se>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Kevin Hilman <khilman@...libre.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Adrián Larumbe <adrian.larumbe@...labora.com>
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v3 0/3] Add additional YUV420 bus format check for
 dw-meson's bridge enable

Hi,

On Sun, 25 Jun 2023 15:17:14 +0100, Adrián Larumbe wrote:
> This is a belated follow-up on
> https://lore.kernel.org/dri-devel/20220515204412.2733803-1-adrian.larumbe@collabora.com
> 
> Commit e67f6037ae1be34b2b68 ("drm/meson: split out encoder from meson_dw_hdmi")
> broke 4K display modes for me, and I discovered it was because the right
> pixel clock wasn't being chosen in dw_hdmi_phy_init. I misinterpreted the
> reason as a problem in figuring out whether we want to enforce YUV420 mode,
> but it turned out to be a mismatch between what dw-meson code is doing and
> the way the bus format is being picked by the dw-hdmi bus output format drm
> helper.
> 
> [...]

Thanks, Applied to https://anongit.freedesktop.org/git/drm/drm-misc.git (drm-misc-next)

[1/3] drm/bridge: dw-hdmi: change YUV420 selection logic at clock setup
      https://cgit.freedesktop.org/drm/drm-misc/commit/?id=7ed40ff1d134bf3a4aef706eed478b926f35b404
[2/3] drm/bridge: dw-hdmi: truly enforce 420-only formats when drm mode demands it
      https://cgit.freedesktop.org/drm/drm-misc/commit/?id=f3710b424a96078f416e1be9cf52b87eadabae78
[3/3] drm/bridge: dw-hdmi: remove dead code and fix indentation
      https://cgit.freedesktop.org/drm/drm-misc/commit/?id=2299a8d12c1cbcdc7086027615d9936a970e7d68

-- 
Neil