Re: [RFC PATCH] Add bridge driver to connect sensors to CIO2 device via software nodes on ACPI platforms

From: Andy Shevchenko
Date: Thu Sep 17 2020 - 10:54:51 EST

On Thu, Sep 17, 2020 at 5:19 PM Kieran Bingham
<kieran.bingham@xxxxxxxxxxxxxxxx> wrote:
> On 17/09/2020 15:08, Andy Shevchenko wrote:


> Ayee, ok so we have 'half' the driver for IPU3 out of staging.

Correct. And your below analysis is correct.

> From my understanding, the IPU3 consists of two components, the CIO2
> (CSI2 capture), and the IMGU (the ISP).
> - drivers/media/pci/intel/ipu3
> This is indeed the CIO2 component (config VIDEO_IPU3_CIO2), and that is
> the part that this bridge relates to, so in fact this cio2-bridge should
> probably go there indeed. No need to go through staging.
> The files remaining at:
> - drivers/staging/media/ipu3
> are in fact also for the IPU3 but the ISP component (VIDEO_IPU3_IMGU).
> I'm sorry for the confusion, I knew that the ISP was still in staging, I
> hadn't realised the CSI2 receiver (CIO2) was not.
> >> Hopefully with more users of the IPU3 brought in by this cio2-bridge,
> >> that will help gather momentum to get the IPU3 developments required
> >> completed and moved into drivers/media.

With Best Regards,
Andy Shevchenko