Re: [PATCH v2] ACPI: LPSS: Add pwm_lookup_table entry for second PWM on CHT/BSW devices

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On Tue, May 9, 2023 at 7:10 PM Mika Westerberg
<mika.westerberg@xxxxxxxxxxxxxxx> wrote:
>
> On Tue, May 09, 2023 at 02:41:00PM +0200, Hans de Goede wrote:
> > BSW PWM2 is used for backlight control for fixed (etched into the glass)
> > touch controls on some models.
> >
> > Add an entry for the second PWM controller to bsw_pwm_lookup,
> > so that drivers can use pwm_get() to get a reference to it.
> >
> > These touch-controls have specialized drivers which bind to different
> > devices on different models, so the consumer-device-name in the lookup
> > table entry is set to NULL, so that only con-id matching is used.
> >
> > The con-id is set to "pwm_soc_lpss_2" which describes the PWM controller
> > rather than the usual approach of describing its function.
> > The specialized (model specific) drivers which need access to the PWM
> > controller know they need the "pwm_soc_lpss_2" con-id.
> >
> > Reviewed-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>
> > Acked-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
> > Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
>
> Reviewed-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>

Applied as 6.5 material, thanks!



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