linux-kernel - Re: [PATCH v3 6/7] ASoC: dt-bindings: xmos,xvf3500: add XMOS XVF3500 voice processor

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Date: Tue, 6 Feb 2024 16:38:39 +0100
From: Javier Carrasco <javier.carrasco@...fvision.net>
To: Mark Brown <broonie@...nel.org>
Cc: Liam Girdwood <lgirdwood@...il.com>, Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>, Matthias Kaehlcke <mka@...omium.org>,
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
 linux-sound@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org
Subject: Re: [PATCH v3 6/7] ASoC: dt-bindings: xmos,xvf3500: add XMOS XVF3500
 voice processor

On 06.02.24 16:35, Mark Brown wrote:
> On Tue, Feb 06, 2024 at 04:05:15PM +0100, Javier Carrasco wrote:
> 
>> The names in the datasheet are vdd for the 1V0 supply and vddio for the
>> 3V3 supply. I named the latter vdd2 instead because this device does not
>> have its own driver and instead it uses the onboard_usb_hub generic
>> driver, where the supplies are named vdd and vdd2.
> 
>> Those are the names used for devm_regulator_bulk_get(). Is that not the
>> right way to match them?
> 
> The binding should really use vddio instead of vdd2 but if that's an
> existing binding then it gets more annoying, probably that existing
> binding is wrong too since vddio does sound like an entirely plausible
> standard name for a 3.3V supply. :/  At the very least the binding
> should document the weird mapping, though ideally the driver would be
> tought to request names matching the datasheet if the compatible is the
> one for this device.  Doing the better naming might be too much hassle
> though.

That is in line with my last reply, where the bindings I used as an
example mention the real names of the supplies as they are defined in
the datasheet.

I can add that for the next version.

Best regards,
Javier Carrasco