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From: Nishanth Menon <nm@ti.com>
To: Andrew Davis <afd@ti.com>
Cc: Conor Dooley <conor+dt@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Rob Herring <robh@kernel.org>, David Airlie <airlied@gmail.com>,
	Maxime Ripard <mripard@kernel.org>,
	Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
	Neil Armstrong <neil.armstrong@linaro.org>,
	<linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
	<dri-devel@lists.freedesktop.org>,
	Robert Nelson <robertcnelson@gmail.com>,
	Jason Kridner <jkridner@beagleboard.org>
Subject: Re: [PATCH 0/2] drm/bridge: it66121: Add it66122 support
Date: Wed, 13 Aug 2025 15:24:33 -0500	[thread overview]
Message-ID: <20250813202433.lsfiggziuzqjtfsq@passover> (raw)
In-Reply-To: <4c6a7db0-dc75-4ed1-aeae-418fa004ea53@ti.com>

On 14:32-20250813, Andrew Davis wrote:
> On 8/13/25 2:08 PM, Nishanth Menon wrote:
> > Hi,
> > 
> > Add support for IT66122, which for all practical purposes is
> > drop in replacement for IT66121 except for the ID register
> > definition.
> > 
> > BeagleY-AI uses this new part as the old part is no longer in production
> > as far as I understand.
> > 
> > Now, BeaglePlay uses it66121 at the moment, but at some point, it might
> > end up flipping over to the new part.
> > 
> > An alternate implementation could be to drop the revision check or make
> > it66121 check include alternate ID check.. but that seems a little
> > non-standard.. Anyways, I suppose mediatek platforms will face this
> > problem as well at some point.
> > 
> 
> Hmmm, since these boards will probably have to switch parts mid-production
> it would cause us to need to have a new DT with the updated compatible
> just for a otherwise transparent revision. Might be better to just
> loosen the PID check so the alternative part work just the same.

I think we can get both world.. respinning this up in v2

-- 
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D
https://ti.com/opensource

      reply	other threads:[~2025-08-13 20:24 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-13 19:08 [PATCH 0/2] drm/bridge: it66121: Add it66122 support Nishanth Menon
2025-08-13 19:08 ` [PATCH 1/2] dt-bindings: display: bridge: it66121: Add compatible string for IT66122 Nishanth Menon
2025-08-13 19:20   ` Krzysztof Kozlowski
2025-08-13 19:08 ` [PATCH 2/2] drm/bridge: it66121: Add it66122 support Nishanth Menon
2025-08-14  4:02   ` devarsh
2025-08-13 19:32 ` [PATCH 0/2] " Andrew Davis
2025-08-13 20:24   ` Nishanth Menon [this message]

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