linux-kernel - Re: [PATCH v2 1/2] dt-bindings: nvmem: mediatek: efuse: split MT8186/MT8188 from base version

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Message-ID: <20250610-magnifier-petty-6c5a2703a05b@spud>
Date: Tue, 10 Jun 2025 16:18:49 +0100
From: Conor Dooley <conor@...nel.org>
To: Chen-Yu Tsai <wenst@...omium.org>
Cc: Srinivas Kandagatla <srini@...nel.org>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Andrew-CT Chen <andrew-ct.chen@...iatek.com>,
	Lala Lin <lala.lin@...iatek.com>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Johnson Wang <johnson.wang@...iatek.com>
Subject: Re: [PATCH v2 1/2] dt-bindings: nvmem: mediatek: efuse: split
 MT8186/MT8188 from base version

On Tue, Jun 10, 2025 at 02:34:29PM +0800, Chen-Yu Tsai wrote:
> On MT8186 and MT8188 one of the NVMEM cells contains the GPU speed bin
> value. In combination with the GPU OPP bindings, on these two platforms
> there is an implied scheme of converting the cell value to what the GPU
> OPP "opp-supported-hw" property matches. This does not apply to the base
> mediatek,efuse hardware, nor does it apply to any of the other platforms
> that do not have the GPU speed bin cell. The platform maintainer argues
> that this makes the compatibles incompatible with the base
> "mediatek,efuse" compatible, as shown in the link given.
> 
> Deprecate the MT8186/MT8188 + "mediatek,efuse" combination, and add
> new entries with MT8186 being the base model and MT8188 falling back
> to MT8186.
> 
> Link: https://lore.kernel.org/all/11028242-afe4-474a-9d76-cd1bd9208987@collabora.com/
> Fixes: ff1df1886f43 ("dt-bindings: nvmem: mediatek: efuse: Add support for MT8188")
> Cc: Johnson Wang <johnson.wang@...iatek.com>
> Signed-off-by: Chen-Yu Tsai <wenst@...omium.org>

Acked-by: Conor Dooley <conor.dooley@...rochip.com>

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