linux-kernel - Re: [PATCH 00/14] Add initial support for the Rockchip RK3588 HDMI TX Controller

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Date: Wed, 5 Jun 2024 02:49:26 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Cristian Ciocaltea <cristian.ciocaltea@...labora.com>
Cc: Andrzej Hajda <andrzej.hajda@...el.com>, 
	Neil Armstrong <neil.armstrong@...aro.org>, Robert Foss <rfoss@...nel.org>, 
	Laurent Pinchart <Laurent.pinchart@...asonboard.com>, Jonas Karlman <jonas@...boo.se>, 
	Jernej Skrabec <jernej.skrabec@...il.com>, Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
	Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
	David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>, 
	Sandy Huang <hjc@...k-chips.com>, Heiko Stübner <heiko@...ech.de>, 
	Andy Yan <andy.yan@...k-chips.com>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Mark Yao <markyao0591@...il.com>, dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org, 
	linux-arm-kernel@...ts.infradead.org, linux-rockchip@...ts.infradead.org, devicetree@...r.kernel.org, 
	kernel@...labora.com, Alexandre ARNOUD <aarnoud@...com>, 
	Luis de Arquer <ldearquer@...il.com>, Algea Cao <algea.cao@...k-chips.com>
Subject: Re: [PATCH 00/14] Add initial support for the Rockchip RK3588 HDMI
 TX Controller

On Tue, Jun 04, 2024 at 10:44:04PM +0300, Cristian Ciocaltea wrote:
> On 6/1/24 7:32 PM, Dmitry Baryshkov wrote:
> > On Sat, Jun 01, 2024 at 04:12:22PM +0300, Cristian Ciocaltea wrote:
> >> The RK3588 SoC family integrates a Quad-Pixel (QP) variant of the
> >> Synopsys DesignWare HDMI TX controller used in the previous SoCs.
> >>
> >> It is HDMI 2.1 compliant and supports the following features, among
> >> others:
> >>
> >> * Fixed Rate Link (FRL)
> >> * 4K@...Hz and 8K@...z video modes
> >> * Variable Refresh Rate (VRR) including Quick Media Switching (QMS)
> >> * Fast Vactive (FVA)
> >> * SCDC I2C DDC access
> >> * TMDS Scrambler enabling 2160p@...z with RGB/YCbCr4:4:4
> >> * YCbCr4:2:0 enabling 2160p@...z at lower HDMI link speeds
> >> * Multi-stream audio
> >> * Enhanced Audio Return Channel (EARC)
> > 
> > It would be really nice if you can take a look at using the HDMI
> > connector framework (landed few days ago) with adaptations for the
> > drm_bridge / drm_bridge_connector ([1]). Your comments for the
> > drm_bridge patches would be defeinitely appreciated.
> > 
> > [1] https://lore.kernel.org/dri-devel/20240531-bridge-hdmi-connector-v4-0-5110f7943622@linaro.org/
> 
> I will definitely check and try to use it, but I'd rather wait a bit
> until this gets stabilized and focus instead on the mandatory changes
> required to upstream this driver. That's mostly because my limited
> availability and expertise on the matter, while trying to unblock other
> work depending on this.

Ack.

-- 
With best wishes
Dmitry