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

Sudeep Holla sudeep.holla at kernel.org
Thu May 14 05:50:55 PDT 2026


On Thu, May 14, 2026 at 12:04:13PM +0100, Suzuki K Poulose wrote:
> Hi Aneesh
> 
> 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.

I had similar thoughts but I didn't get into forming a reply, now I can keep
it small, thanks for that 😉.

> Please could we split the patch in the following order ?
> 
> 1. Add platform device for arm-smccc
> 2. Move TRNG to Auxilliary Device - (Even though it is a later patch, move
> it before the RSI changes)
> 3. Move RSI dev as Auxilliary
> 4. Add the firmware sysfs ABI.
> 

I agree with the logical split of functionality above.

> That way, first two could be merged while we figure out (3) and (4)
> 

I disagree with this though. We don't want to merge this unless (3) is
agreed. There is no point in doing that unless we agree the approach for
RSI as well.

-- 
Regards,
Sudeep



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