# Re: \[PATCH v3 2/2\] backlight: lm3630a: convert to atomic PWM API and check for errors

- From: Lee Jones \<hidden\>
- Date: 2021-06-22 13:13:03 
- List: linux-fbdev
- Page: https://ratatoskr.run/linux-fbdev/2021/06/9201710
- Thread: https://ratatoskr.run/linux-fbdev/2021/06/9201576/t.md

```text
On Mon, 21 Jun 2021, Uwe Kleine-König wrote:

> The practical upside here is that this only needs a single API call to
> program the hardware which (depending on the underlaying hardware) can
> be more effective and prevents glitches.
> 
> Up to now the return value of the pwm functions was ignored. Fix this
> and propagate the error to the caller.
> 
> Signed-off-by: Uwe Kleine-König <redacted>
> ---
>  drivers/video/backlight/lm3630a_bl.c | 42 +++++++++++++---------------
>  1 file changed, 19 insertions(+), 23 deletions(-)

Fixed the subject line and applied, thanks.

-- 
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
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```