Re: [PATCH] media: ov5675: use group write to update digital gain

Sakari Ailus
2021-12-29T09:41:39Z

Hi Bingbu,

On Wed, Dec 29, 2021 at 04:57:39PM +0800, Bingbu Cao wrote:
> MWB gain register are used to set gain for each mwb channel mannually.
> However, it will involve some artifacts at low light environment as gain
> cannot be applied to each channel synchronously. Update the driver to use
> group write for digital gain to make the sure RGB digital gain be applied
> together at frame boundary.

How about the analogue gain and exposure time?

Shouldn't they be applied similarly as well? Adding two more writes
increases the probability of missing a frame there.

This is of course a trick since the control framework doesn't really
support this, but I think this support should be added.

--
Regards,

Sakari Ailus