linux-kernel - Re: [PATCH v1 7/7] drm/mediatek: Introduce HDMI/DDC v2 for MT8195/MT8188

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Message-ID: <20241125-spirited-industrious-roadrunner-e8154d@houat>
Date: Mon, 25 Nov 2024 11:13:25 +0100
From: Maxime Ripard <mripard@...nel.org>
To: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Cc: chunkuang.hu@...nel.org, p.zabel@...gutronix.de, airlied@...il.com, 
	simona@...ll.ch, maarten.lankhorst@...ux.intel.com, tzimmermann@...e.de, 
	robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org, matthias.bgg@...il.com, 
	ck.hu@...iatek.com, dri-devel@...ts.freedesktop.org, 
	linux-mediatek@...ts.infradead.org, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-arm-kernel@...ts.infradead.org, kernel@...labora.com
Subject: Re: [PATCH v1 7/7] drm/mediatek: Introduce HDMI/DDC v2 for
 MT8195/MT8188

On Mon, Nov 25, 2024 at 10:40:22AM +0100, AngeloGioacchino Del Regno wrote:
> Il 22/11/24 10:20, Maxime Ripard ha scritto:
> > Hi,
> > 
> > On Wed, Nov 20, 2024 at 01:45:12PM +0100, AngeloGioacchino Del Regno wrote:
> > > Add support for the newer HDMI-TX (Encoder) v2 and DDC v2 IPs
> > > found in MediaTek's MT8195, MT8188 SoC and their variants, and
> > > including support for display modes up to 4k60 and for HDMI
> > > Audio, as per the HDMI 2.0 spec.
> > > 
> > > HDCP and CEC functionalities are also supported by this hardware,
> > > but are not included in this commit.
> > > 
> > > Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
> > 
> > Just a heads-up, you should really be using the new HDMI helpers, it'll
> > remove a lot of boilerplate and potential bugs.
>
> Hmm... the state helper you mean? Or the inflight series from Dmitry?

Ideally both, but targetting only the former would be great already :)

> In any case... yeah, you're right, let me check which helpers I can
> use: that's going to be done for v2 :-)

I think the scrambler support would be great to add there, there's a lot
of bugs in most drivers. If you feel like it :)

Maxime

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