On Wed, Jul 19, 2017 at 02:02:46PM +0200, Pavel Machek wrote:
> On Tue 2017-07-18 21:41:07, Sakari Ailus wrote:
> > The V4L2 flash interface allows controlling multiple LEDs through a single
> > sub-devices if, and only if, these LEDs are of different types. This
> > approach scales badly for flash controllers that drive multiple flash LEDs
> > or for LED specific associations. Essentially, the original assumption of a
> > LED driver chip that drives a single flash LED and an indicator LED is no
> > longer valid.
> > 
> > Address the matter by registering one sub-device per LED.
> > 
> > Signed-off-by: Sakari Ailus <[email protected]>
> 
> Acked-by: Pavel Machek <[email protected]>

Thanks!

> 
> Does anything need to be done with drivers/media/i2c/adp1653.c ?

Well, it does expose the two LEDs through the same sub-device. I don't
think that'd really be an issue. The drivers/media/i2c/as3645a.c does the
same, I think it's fine to keep that.

Effectively only new drivers will have the new behaviour (apart from the
greybus staging driver).

-- 
Regards,

Sakari Ailus
e-mail: [email protected]     XMPP: [email protected]

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