Subject: Re: [PATCH v5 1/3] firmware: smccc: coco: Manage arm-smccc platform device and CCA auxiliary drivers

From: Greg KH <[email-masked]>
Date: Thu, 14 May 2026 15:25:34 +0200

On Thu, May 14, 2026 at 02:19:19PM +0100, Catalin Marinas wrote:
> On Thu, May 14, 2026 at 02:55:48PM +0200, Greg Kroah-Hartman wrote:
> > On Thu, May 14, 2026 at 12:04:13PM +0100, Suzuki K Poulose wrote:
> > > On 14/05/2026 10:40, Aneesh Kumar K.V (Arm) wrote:
> > > > Make the SMCCC driver responsible for registering the arm-smccc platform
> > > > device and after confirming the relevant SMCCC function IDs, create
> > > > the arm_cca_guest auxiliary device.
> > > > 
> > > 
> > > There are a few changes squashed in to this patch. Please could we
> > > split the patch in the following order ?
> > > 
> > > 1. Add platform device for arm-smccc
> > 
> > Do not make any more "fake" platform devices please.
> > 
> > > 2. Move TRNG to Auxilliary Device - (Even though it is a later patch, move
> > > it before the RSI changes)
> > 
> > No, move it to the faux api please.
> 
> So should we end up with:
> 
>   /sys/devices/faux/arm-smccc/
>     smccc_trng/
>     arm-rsi-dev/

What types are these child devices?  Also faux ones?

If so, great.

thanks,

greg k-h