linux-kernel - Re: [PATCH RFC v1] drm/meson: venc: add support for HDMI DMT modes up to 3840x2160

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Message-Id: <176762691920.335654.10635601419658872459.b4-ty@linaro.org>
Date: Mon, 05 Jan 2026 16:28:39 +0100
From: Neil Armstrong <neil.armstrong@...aro.org>
To: linux-amlogic@...ts.infradead.org, dri-devel@...ts.freedesktop.org, 
 Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Cc: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 maarten.lankhorst@...ux.intel.com, mripard@...nel.org, tzimmermann@...e.de, 
 tobetter@...il.com, christianshewitt@...il.com
Subject: Re: [PATCH RFC v1] drm/meson: venc: add support for HDMI DMT modes
 up to 3840x2160

Hi,

On Sat, 08 Nov 2025 14:42:36 +0100, Martin Blumenstingl wrote:
> Commit 5d0bfe448481 ("drm/meson: Add HDMI 1.4 4k modes") added support
> for HDMI 1.4 4k modes, which is what TVs need. For computer monitors
> the code is using the DMT code-path, which ends up in
> meson_venc_hdmi_supported_mode(), which does not allow the 4k modes yet.
> 
> The datasheet for all supported SoCs mentions "4Kx2K@60". It's not
> clear whether "4K" here means 3840 or 4096 pixels.
> 
> [...]

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

[1/1] drm/meson: venc: add support for HDMI DMT modes up to 3840x2160
      https://gitlab.freedesktop.org/drm/misc/kernel/-/commit/26ce0b87a815c71d24fd193a81c06daefb60959f

-- 
Neil