Re: [PATCH v10 0/6] Add new driver for WCSS secure PIL loading

[Vignesh Viswanathan]

On 1/13/2026 2:50 PM, Varadarajan Narayanan wrote:
> As discussed in [4] posting this series after dropping IPQ5424 support
> to remove dependency on Sricharan's tmel-qmp mailbox driver series v4 [1].
> 
> Imported from 20251215-ipq5018-wifi-v7-0-ec4adba941b5@xxxxxxxxxxx.
> 
> Imported from f20250417061245.497803-1-gokul.sriram.p@xxxxxxxxxxxxxxxx
> I've resumed Gokul's work as the last submission dates back April 2025.
> 
> - Secure PIL is signed, firmware images which only TrustZone (TZ)
>   can authenticate and load. Linux kernel will send a request to TZ to
>   authenticate and load the PIL images.
> 
> - When secure PIL support was added to the existing wcss PIL driver
>   earlier in [2], Bjorn suggested not to overload the existing WCSS
>   rproc driver, instead post a new driver for PAS based IPQ WCSS driver.
>   This series adds a new secure PIL driver for the same.
> 
> - Also adds changes to scm to pass metadata size as required for IPQ5332,
>   reposted from [3].
> 
> [1]
> https://patchwork.kernel.org/project/linux-arm-msm/cover/20250327181750.3733881-1-quic_srichara@xxxxxxxxxxx/
> 
> [2]
> https://patchwork.kernel.org/project/linux-arm-msm/patch/1611984013-10201-3-git-send-email-gokulsri@xxxxxxxxxxxxxx/
> 
> [3]
> https://patchwork.kernel.org/project/linux-arm-msm/patch/20240820055618.267554-6-quic_gokulsri@xxxxxxxxxxx/
> 
> [4]
> https://lore.kernel.org/linux-arm-msm/aUN7Aer%2FGG1d5Om9@xxxxxxxxxxxxxxxxxxxxxxxxxx/
> 
> Changes in v10:
> 	- Add R-b tags
> 	- Remove unused fields from 'struct wcss_sec'
> 	- Remove glink and ssr subdev if wcss_sec_probe() fails
> 	- Link to v9: https://lore.kernel.org/linux-arm-msm/20260106105412.3529898-1-varadarajan.narayanan@xxxxxxxxxxxxxxxx/
Hi Bjorn,

With Dmitry's R-b in patch 3/6, all 6 patches now have R-b tags.

Could you please help review and pick up this series ?

Thanks,
Vignesh