linux-kernel - Re: [PATCH v14 01/28] drm/connector: Introduce an HDMI connector initialization function

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Date: Thu, 23 May 2024 01:12:32 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Maxime Ripard <mripard@...nel.org>
Cc: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
	Thomas Zimmermann <tzimmermann@...e.de>, David Airlie <airlied@...il.com>, 
	Daniel Vetter <daniel@...ll.ch>, Jonathan Corbet <corbet@....net>, 
	Sandy Huang <hjc@...k-chips.com>, Heiko Stübner <heiko@...ech.de>, 
	Chen-Yu Tsai <wens@...e.org>, Jernej Skrabec <jernej.skrabec@...il.com>, 
	Samuel Holland <samuel@...lland.org>, Andy Yan <andy.yan@...k-chips.com>, 
	Hans Verkuil <hverkuil@...all.nl>, Sebastian Wick <sebastian.wick@...hat.com>, 
	Ville Syrjälä <ville.syrjala@...ux.intel.com>, dri-devel@...ts.freedesktop.org, 
	linux-arm-kernel@...ts.infradead.org, linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-media@...r.kernel.org, linux-rockchip@...ts.infradead.org, linux-sunxi@...ts.linux.dev, 
	Dave Stevenson <dave.stevenson@...pberrypi.com>, Sui Jingfeng <sui.jingfeng@...ux.dev>
Subject: Re: [PATCH v14 01/28] drm/connector: Introduce an HDMI connector
 initialization function

On Tue, May 21, 2024 at 12:13:34PM +0200, Maxime Ripard wrote:
> A lot of the various HDMI drivers duplicate some logic that depends on
> the HDMI spec itself and not really a particular hardware
> implementation.
> 
> Output BPC or format selection, infoframe generation are good examples
> of such areas.
> 
> This creates a lot of boilerplate, with a lot of variations, which makes
> it hard for userspace to rely on, and makes it difficult to get it right
> for drivers.
> 
> In the next patches, we'll add a lot of infrastructure around the
> drm_connector and drm_connector_state structures, which will allow to
> abstract away the duplicated logic. This infrastructure comes with a few
> requirements though, and thus we need a new initialization function.
> 
> Hopefully, this will make drivers simpler to handle, and their behaviour
> more consistent.
> 
> Reviewed-by: Dave Stevenson <dave.stevenson@...pberrypi.com>
> Reviewed-by: Sui Jingfeng <sui.jingfeng@...ux.dev>
> Signed-off-by: Maxime Ripard <mripard@...nel.org>
> ---
>  drivers/gpu/drm/drm_connector.c | 39 +++++++++++++++++++++++++++++++++++++++
>  include/drm/drm_connector.h     |  5 +++++
>  2 files changed, 44 insertions(+)


Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>

-- 
With best wishes
Dmitry