Re: [PATCH v4 00/19] Intel IPU6 and IPU6 input system drivers

[Sakari Ailus <sakari.ailus@iki.fi>]

Hi Hans,

On Wed, Apr 17, 2024 at 09:56:40AM +0200, Hans de Goede wrote:
> Hi Sakari,
> On 4/16/24 10:10 PM, Sakari Ailus wrote:
> > Hello everyone,
> > 
> > This patch series adds a driver for Intel IPU6 input system.
> > IPU6 is the sixth generation of Imaging Processing Unit, it is a PCI
> > device which can be found in some Intel Client Platforms. User can use
> > IPU6 to capture images from MIPI camera sensors.
> > 
> > IPU6 has its own firmware which exposes ABIs to driver, and communicates
> > with CSE to do firmware authentication. IPU6 has its MMU hardware, so
> > the driver sets up a page table to allow IPU6 DMA to access the system
> > memory.
> > 
> > IPU6 input system driver uses MC and V4L2 sub-device APIs besides V4L2.
> > 
> > I can now capture images from ov01a10 and ov2740 sensors (including
> > metadata from the latter).
> > 
> > The series applies on top of the metadata patchset
> > <URL:https://lore.kernel.org/linux-media/20240416193319.778192-1-sakari.ailus@linux.intel.com/T/#t>.
> 
> Thank you for the new version!
> 
> I assume that the posting of this new version means that you have solved
> the stability issues where the laptop would freeze after sttreaming from
> an ov2740 sensor with metadata once ?
> 
> What about the unrelated ov2740 driver issue where the sensor would not
> always start streaming for which you temporarily disabled runtime pm
> for the sensor as a workaround any progress on that ?

I'm afraid these issues remain.

> 
> Do you have a git branch available with the metadata + this series
> somewhere for easy testing ?  I would like to give this a test run on
> my own IPU6 + ov2740 laptop.

Both of the sets can be found here:

<URL:https://git.linuxtv.org/sailus/media_tree.git/log/?h=ipu6>

-- 
Sakari Ailus