Re: [PATCH 00/14] staging: vc04_services: bcm2835-isp support

[Umang Jain]

Hi Stefan

On 11/26/22 8:12 PM, Stefan Wahren wrote:
> Hi Umang,
>
> Am 21.11.22 um 22:47 schrieb Umang Jain:
> > This series aims to upport bcm2835-isp from the RPi kernel [1] and is a
> > independent subset of earlier series [2] posted to upport CSI-2/CCP2
> > receiver IP core("Unicam) + the ISP driver found in BCM283x and 
> > compatible
> > SoCs (namely BCM2711). Unicam is still under active development to work
> > with multistream support to get into mainline. Hence only the ISP driver
> > will remain the primary area of this series.
>
> thanks for working on this. But honestly i would prefer that vchiq 
> comes out of staging before adding more features. As Greg said some 
> time ago staging is not a place to "dump code and run away". These new 
> files are in the same bad shape as the rest of vc04 before the 
> clean-up here in staging started.

Certainly, I am not here to do that - but I am still learning the ropes.

If the staging issue is becoming a blocker for bcm2835-isp going 
upstream, I would be happy to help here! Though I must mention that I 
still have limited visibility so my aim would be to chart out a plan of 
things needed to be done to get vc04_services out of staging!

> I agree that VCSM is on the TODO list for vchiq, but this driver is 
> not necessary for making bcm2835-audio & bcm2835-camera leave staging. 
> It just binds more resources on a new feature.

I see two TODO files in vc04_services:
    ./bcm2835-camera/TODO
    ./interface/TODO

One of the bcm2835-camera TODO points to the vc-sm-cma driver itself. So 
that's address in the series. The other remaining one - I will need to 
take a deeper look before commenting on it.

The main chunk of TODO are in vc04_services/interfaces/TODO.  Doing a 
cursory reading of them suggests that these apply to *all* vc04_services 
components? Am I right?

Are these are the specific bits of cleanup you are referring to in your 
comment?


> Unfortuntately i hadn't much time to work on vchiq by myself.
>
> Just my two cents
> Stefan