RE: [PATCH V9 3/3] Input: new da7280 haptic driver

[Roy Im]

Hello Uwe,

On Monday, March 2, 2020 6:20 AM, Uwe Kleine-König wrote:
> On Sat, Feb 29, 2020 at 12:59:20AM +0000, Roy Im wrote:
> > Okay, thanks. I have tried to update that as below.
> > Could I get your comment if you still see anything on this?
> >
> > 	/* Maximum gain is 0x7fff for PWM mode */
> > 	#define MAX_MAGNITUDE_SHIFT		15
> >        [...]
> > 	period_mag_multi >>= MAX_MAGNITUDE_SHIFT;
> >
> > 	/* The interpretation of duty cycle depends on the acc_en,
> > 	* it should be from 50% to 100% for acc_en = 0.
> > 	* See datasheet 'PWM mode' section for more details.
> > 	*/
> > 	if (!haptics->acc_en) {
> > 		period_mag_multi += state.period;
> > 		period_mag_multi /= 2;
> > 	}
> 
> Much better. Extra points if you add a link to the datasheet at the top of the driver. I didn't look at the datasheet and
> assume that the reasoning is obvious then.

Okay, then do you think it would be better to remove that comment(the 3rd line - datasheet)?. 

> 
> Best regards
> Uwe
> 
> --
> Pengutronix e.K.                           | Uwe Kleine-König            |
> Industrial Linux Solutions                 | https://www.pengutronix.de/ |

Thanks for your comment.

Kind regards,
Roy