linux-kernel - Re: [PATCH v6 1/4] dt-bindings: mfd: Add sony,cronos-smc

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Message-ID: <887779054.192722.1767805783381.JavaMail.zimbra@raptorengineeringinc.com>
Date: Wed, 7 Jan 2026 11:09:43 -0600 (CST)
From: Timothy Pearson <tpearson@...torengineering.com>
To: Krzysztof Kozlowski <krzk@...nel.org>
Cc: devicetree <devicetree@...r.kernel.org>, 
	linux-kernel <linux-kernel@...r.kernel.org>, 
	Rob Herring <robh+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, 
	Lee Jones <lee@...nel.org>, 
	Georgy Yakovlev <Georgy.Yakovlev@...y.com>, 
	Shawn Anastasio <sanastasio@...torengineering.com>
Subject: Re: [PATCH v6 1/4] dt-bindings: mfd: Add sony,cronos-smc

----- Original Message -----
> From: "Krzysztof Kozlowski" <krzk@...nel.org>
> To: "Timothy Pearson" <tpearson@...torengineering.com>
> Cc: "devicetree" <devicetree@...r.kernel.org>, "linux-kernel" <linux-kernel@...r.kernel.org>, "Rob Herring"
> <robh+dt@...nel.org>, "Conor Dooley" <conor+dt@...nel.org>, "Krzysztof Kozlowski" <krzysztof.kozlowski+dt@...aro.org>,
> "Lee Jones" <lee@...nel.org>, "Georgy Yakovlev" <Georgy.Yakovlev@...y.com>, "Shawn Anastasio"
> <sanastasio@...torengineering.com>
> Sent: Wednesday, January 7, 2026 1:25:10 AM
> Subject: Re: [PATCH v6 1/4] dt-bindings: mfd: Add sony,cronos-smc

> On Tue, Jan 06, 2026 at 06:21:33PM -0600, Timothy Pearson wrote:
>> From: Shawn Anastasio <sanastasio@...torengineering.com>
>> 
>> The Sony Cronos Platform Controller is a multi-purpose platform controller
>> that provides both a watchdog timer and an LED controller for the Sony
>> Interactive Entertainment Cronos x86 server platform. As both functions
>> are provided by the same CPLD, a multi-function device is exposed as the
>> parent of both functions.
>> 
>> Add a DT binding for this device.
>> 
>> Signed-off-by: Shawn Anastasio <sanastasio@...torengineering.com>
>> Signed-off-by: Timothy Pearson <tpearson@...torengineering.com>
>> ---
>>  .../bindings/mfd/sony,cronos-smc.yaml         | 128 ++++++++++++++++++
> 
> How this can be a v6 with no changelog at all and still not tested?
> 
> What happened with this patchset? Where is it explained?

Changes have only been to fix issues identified in review and any posted autotest failures.

Please note that the tooling to check the DT bindings does NOT appear work properly, we've wasted a lot of time and effort attempting to get it running only to find that it's spitting out internal Python errors even for other drivers that are *already* in the kernel source tree.  This obviously creates a situation where it's difficult to pre-check the patch set for compliance; if you want to see this first hand, spin up a Debian Sid VM (which has a very recent version of the DT tooling from late 2025) and try to check any of the in-tree MFD drivers using the documented methods.

If this driver is simply something you don't want to see in the kernel that would be useful information for us to know, and would avoid having to go through another patch series.  That information would allow us to simply push this downstream to OpenBMC as a kernel patch set for this particular platform.