[PATCH v6 1/5] i2c: designware: Use polling by default when there is no irq resource

[Andy Shevchenko]

On Tue, Jul 01, 2025 at 03:55:08PM +0300, Heikki Krogerus wrote:
> On Tue, Jul 01, 2025 at 03:42:42PM +0300, Andy Shevchenko wrote:
> > On Tue, Jul 01, 2025 at 03:22:48PM +0300, Heikki Krogerus wrote:

...

> > > +	u32 flags = (uintptr_t)device_get_match_data(&pdev->dev);
> > 
> > > +	irq = platform_get_irq_optional(pdev, 0);
> > > +	if (irq == -ENXIO)
> > > +		flags |= ACCESS_POLLING;
> > > +	else if (irq < 0)
> > >  		return irq;
> > 
> > >  	if (device_property_present(device, "wx,i2c-snps-model"))
> > > +		flags = MODEL_WANGXUN_SP | ACCESS_POLLING;
> > 
> > Now I'm a bit puzzled why do we need to add this flag explicitly here?
> > Does Wnagxun provides an IRQ and chooses at the same time to poll?
> > Shouldn't this patch rather fix that?
> 
> No. I do not want to touch the behavior here. The flags were
> overwritten and continue to be overwritten.
> 
> I will propose an improvement for that together with some other
> modifications to this file later, but those are out side the scope of
> this series.

Sure.

-- 
With Best Regards,
Andy Shevchenko