[alsa-devel] [PATCH v5] tas2770: add tas2770 smart PA kernel driver

[Mark Brown]

On Tue, Sep 17, 2019 at 03:40:59PM +0800, shifu0704 at thundersoft.com wrote:

> > +reload:
> > + /* hardware reset and reload */
> > + tas2770_load_config(tas2770);

> Sometimes devices need to be reset to return to normal, and this setting is necessary.

But why do we have systems where the device is being reset?  Like I keep
saying I'd just get a normal driver merged first, then go back and
figure out what's going on with the reset support so it can be reviewed
separately.

> > +end:
> > + return IRQ_HANDLED;
> > +}

> I see that the other drivers, the return values in irq_handler are IRQ_HANDLED.

If they've actually handled an interrupt.  There's some buggy drivers
that do it unconditionally, they aren't a good reason to add more.
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