2022-06-08 05:48:59

by Miguel Ojeda

[permalink] [raw]
Subject: Re: [PATCH] auxdisplay: ht16k33: Use backlight helper

Hi Stephen,

On Tue, Jun 7, 2022 at 8:04 PM Stephen Kitt <[email protected]> wrote:
>
> backlight_properties.fb_blank is deprecated. The states it represents
> are handled by other properties; but instead of accessing those
> properties directly, drivers should use the helpers provided by
> backlight.h.
>
> Instead of retrieving the backlight brightness in struct
> backlight_properties manually, and then checking whether the backlight
> should be on at all, use backlight_get_brightness() which does all
> this and insulates this from future changes.

Thanks for the patch! Looks good to me.

There is a functional change in that `BL_CORE_SUSPENDED` is taken into
account with this change, but I assume that is expected. In that case,
it could be good to mention it in the commit message.

Cheers,
Miguel


2022-06-08 06:24:38

by Stephen Kitt

[permalink] [raw]
Subject: Re: [PATCH] auxdisplay: ht16k33: Use backlight helper

Hi Miguel,

On Tue, 7 Jun 2022 21:08:34 +0200, Miguel Ojeda
<[email protected]> wrote:
> On Tue, Jun 7, 2022 at 8:04 PM Stephen Kitt <[email protected]> wrote:
> > backlight_properties.fb_blank is deprecated. The states it represents
> > are handled by other properties; but instead of accessing those
> > properties directly, drivers should use the helpers provided by
> > backlight.h.
> >
> > Instead of retrieving the backlight brightness in struct
> > backlight_properties manually, and then checking whether the backlight
> > should be on at all, use backlight_get_brightness() which does all
> > this and insulates this from future changes.
>
> Thanks for the patch! Looks good to me.
>
> There is a functional change in that `BL_CORE_SUSPENDED` is taken into
> account with this change, but I assume that is expected. In that case,
> it could be good to mention it in the commit message.

That’s a good point, and it is indeed expected; I’ll add it to the commit
message.

Regards,

Stephen


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