Re: [PATCH v5 00/16] acpi/pwm/i915: Convert pwm-crc and i915 driver's PWM code to use the atomic PWM API

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On Sat, Aug 01, 2020 at 04:38:16PM +0200, Hans de Goede wrote:
> On 7/29/20 12:54 PM, Andy Shevchenko wrote:
> > On Fri, Jul 17, 2020 at 03:37:37PM +0200, Hans de Goede wrote:

...

> > One comment to consider, though. There are three channels in that PWM AFAIU.
> > One of them is backlight control, another one can be attached to haptics. The
> > concern is how this series may (or may not?) affect haptics behaviour.
> 
> When you say "in that PWM" do you mean the LPSS one or the CRC one ?

CRC one. I have read it from PMIC spec, that's why the question.

> The CRC PWM driver patches do make it honor the requested output frequency,
> where before, because of a bug, it would stick with the out frequency
> setup by the firmware (or the power-on-reset value if no value is set
> by the firmware). This fix causing this is very clearly correct, but
> it could have unexpected side-effects.

-- 
With Best Regards,
Andy Shevchenko





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