linux-kernel - Re: [PATCH 1/2] dt-bindings: arm: aspeed: Add Asus IPMI card

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Message-ID: <e97b7a193f8bbfca9ec00037808ad80a5baf9f00.camel@codeconstruct.com.au>
Date: Tue, 13 Jan 2026 11:27:28 +1030
From: Andrew Jeffery <andrew@...econstruct.com.au>
To: Anirudh Srinivasan <anirudhsriniv@...il.com>, Krzysztof Kozlowski
	 <krzk@...nel.org>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
  Conor Dooley <conor+dt@...nel.org>, Joel Stanley <joel@....id.au>,
 devicetree@...r.kernel.org, 	linux-arm-kernel@...ts.infradead.org,
 linux-aspeed@...ts.ozlabs.org, 	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: arm: aspeed: Add Asus IPMI card

On Mon, 2026-01-12 at 15:21 -0600, Anirudh Srinivasan wrote:
> Hi Krzysztof,
> 
> On Mon, Jan 12, 2026 at 5:47 AM Krzysztof Kozlowski <krzk@...nel.org> wrote:
> > 
> > > 
> > > It's a bit bike-sheddy, however: the pattern tends to be
> > > ${vendor},${platform}-bmc, but as the platform can't be specified and
> > > the card's function is the BMC itself, I'd go with "asus,ipmi-
> > > expansion-card" (I couldn't immediately find a useful identifier other
> > > than the product name).
> > 
> > This should include some model name or at least soc. What if you have
> > IPMI card for ast2600 and later completely different for ast2700?
> 
> Personally, I was okay with Andrew's suggestion of naming it
> "asus,ipmi-expansion-card" because that's the official product name
> and that exact term works well for online searches.
> 
> This seems like a pretty niche product Asus announced 4 years ago and
> made in very low volumes. I'm not sure if they'll make a new one with
> an ast2700, given how the modern trend is to have BMCs on
> motherboards. What do you think about the naming Andrew?

I agree that the product seems niche. There's practically nothing on
their website on the marketing side - from searching around the details
are pretty much limited to the support pages. I can't really speak to
future stuff like an AST2700-based design though, who knows.

A couple of numbers turned up that might be helpful:

   1. The Quick Start Guide[1] seems to use "E21524", which is also
      used by some random blog[2] to identify it. 
   2. There's "R1.04" on the silkscreen. 

Perhaps we could incorporate either of those?

 * asus,e21524-ipmi-expansion-card
 * asus,ipmi-expansion-card-r1-04

However, they're not without some risk:

   1. It's hard to tell whether E21524 is properly representative
   2. R1.04 may also problematic as an AST2700-based card will likely
      restart the numbering and risk a collision

Otherwise, I guess there's:

 * asus,ipmi-expansion-card-ast2600

Andrew

[1]: https://www.asus.com/us/supportonly/ipmi%20expansion%20card/helpdesk_manual/
[2]: https://blog.liaosirui.com/%E7%B3%BB%E7%BB%9F%E8%BF%90%E7%BB%B4/A.%E6%9C%8D%E5%8A%A1%E5%99%A8/%E5%B9%B3%E5%8F%B0%E7%AE%A1%E7%90%86/BMC%E5%BA%95%E6%9D%BF%E7%AE%A1%E7%90%86%E6%8E%A7%E5%88%B6%E5%99%A8/IPMI%E8%BF%9C%E7%A8%8B%E7%AE%A1%E7%90%86%E5%8D%A1.html