# Re: \[PATCH v2 2/2\] backlight/lp855x: Add supply regulator to lp855x

- List: linux-fbdev
- 1 message, 1 author
- Page: https://ratatoskr.run/linux-fbdev/2014/12/8101261/t

## Re: \[PATCH v2 2/2\] backlight/lp855x: Add supply regulator to lp855x

- From: Kim, Milo \<hidden\>
- Date: 2014-12-03 00:54:52 
- Message: https://ratatoskr.run/linux-fbdev/2014/12/8101261.md

```text
On 12/2/2014 6:07 AM, Sean Paul wrote:
> This patch adds a supply regulator to the lp855x platform data to facilitate
> powering on/off the 3V rail attached to the controller.
>
> Cc: Stéphane Marchesin<redacted>
> Cc: Aaron Durbin<redacted>
> Signed-off-by: Sean Paul<redacted>

Acked-by: Milo Kim <redacted>

For effective power consumption, regulator could be enabled/disabled 
based on backlight control flow.
For example, when the brightness is 0, then call regulator_disable()
when the brightness is > 0 and regulator is off, then call 
regulator_enable().
However, I'd like to send ACK to this patch.

Sean,
Could you send the patch-set with the first one - 'backlight/lp855x: 
Refactor dt parsing code'? I'll send my ACK as well.
For the backlight maintainers, it would be better to apply them together.

Thanks!

Best regards,
Milo
```