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Date: Wed, 5 Jun 2024 02:49:26 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
To: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Cc: 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>, 
	Maxime Ripard <mripard@kernel.org>, Thomas Zimmermann <tzimmermann@suse.de>, 
	David Airlie <airlied@gmail.com>, Daniel Vetter <daniel@ffwll.ch>, 
	Sandy Huang <hjc@rock-chips.com>, Heiko =?utf-8?Q?St=C3=BCbner?= <heiko@sntech.de>, 
	Andy Yan <andy.yan@rock-chips.com>, Rob Herring <robh@kernel.org>, 
	Krzysztof Kozlowski <krzk+dt@kernel.org>, Conor Dooley <conor+dt@kernel.org>, 
	Mark Yao <markyao0591@gmail.com>, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, 
	linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, 
	kernel@collabora.com, Alexandre ARNOUD <aarnoud@me.com>, 
	Luis de Arquer <ldearquer@gmail.com>, Algea Cao <algea.cao@rock-chips.com>
Subject: Re: [PATCH 00/14] Add initial support for the Rockchip RK3588 HDMI
 TX Controller
Message-ID: <ymccadqprkxlvhv6ekyqr7utsgejxhqmxlki7nh23htgktlynl@7upjoc5whcy6>
References: <20240601-b4-rk3588-bridge-upstream-v1-0-f6203753232b@collabora.com>
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In-Reply-To: <892b2070-2fd0-42b2-a8c2-811dc7382b0c@collabora.com>

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@120Hz and 8K@60Hz video modes
> >> * Variable Refresh Rate (VRR) including Quick Media Switching (QMS)
> >> * Fast Vactive (FVA)
> >> * SCDC I2C DDC access
> >> * TMDS Scrambler enabling 2160p@60Hz with RGB/YCbCr4:4:4
> >> * YCbCr4:2:0 enabling 2160p@60Hz 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