From: Maxime Ripard <mripard@kernel.org>
To: Adam Ford <aford173@gmail.com>
Cc: Dominique Martinet <dominique.martinet@atmark-techno.com>,
Liu Ying <victor.liu@nxp.com>,
Andrzej Hajda <andrzej.hajda@intel.com>,
Neil Armstrong <neil.armstrong@linaro.org>,
Robert Foss <rfoss@kernel.org>,
Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
Jonas Karlman <jonas@kwiboo.se>,
Jernej Skrabec <jernej.skrabec@gmail.com>,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Thomas Zimmermann <tzimmermann@suse.de>,
David Airlie <airlied@gmail.com>,
Daniel Vetter <daniel@ffwll.ch>, Shawn Guo <shawnguo@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>,
Lucas Stach <l.stach@pengutronix.de>,
Frieder Schrempf <frieder.schrempf@kontron.de>,
dri-devel@lists.freedesktop.org, imx@lists.linux.dev,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] drm/bridge: imx8mp-hdmi-tx: allow 0.5% margin with selected clock
Date: Fri, 6 Sep 2024 09:51:41 +0200 [thread overview]
Message-ID: <20240906-strange-spiffy-nautilus-330add@houat> (raw)
In-Reply-To: <CAHCN7xLmZYZcHyPh3gy20vFKP7aTDKvWu+a_mbG6LN2gdEifTA@mail.gmail.com>
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On Thu, Sep 05, 2024 at 08:23:51PM GMT, Adam Ford wrote:
> On Wed, Sep 4, 2024 at 3:31 AM Dominique Martinet
> <dominique.martinet@atmark-techno.com> wrote:
> >
> > This allows the hdmi driver to pick e.g. 64.8MHz instead of 65Mhz when we
> > cannot output the exact frequency, enabling the imx8mp HDMI output to
> > support more modes
> >
> I went from 19 options on Modetest with my AOC 4K monitor to 31. Of
> those 31, three did not appear to sync, but not all the frequencies in
> the LUT sync for me either, so I have no objection to moving forward
> with this, but I wonder if we should have a note in there about why we
> have a 5% tolerance.
Yeah, I agree, it's something you want a comment for.
Maxime
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prev parent reply other threads:[~2024-09-06 7:52 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-04 8:31 [PATCH] drm/bridge: imx8mp-hdmi-tx: allow 0.5% margin with selected clock Dominique Martinet
2024-09-05 7:49 ` Frieder Schrempf
2024-09-06 1:23 ` Adam Ford
2024-09-06 7:51 ` Maxime Ripard [this message]
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