On 1/13/22 11:57 PM, Sergey Shtylyov wrote: >>> The subsystems regulator, clk and gpio have the concept of a dummy >>> resource. For regulator, clk and gpio there is a semantic difference >>> between the regular _get() function and the _get_optional() variant. >>> (One might return the dummy resource, the other won't. Unfortunately >>> which one implements which isn't the same for these three.) The >>> difference between platform_get_irq() and platform_get_irq_optional() is >>> only that the former might emit an error message and the later won't. > > This is only a current difference but I'm still going to return 0 ISO > -ENXIO from latform_get_irq_optional(), no way I'd leave that -ENXIO there platform. > alone... :-) > >> Reviewed-by: Mark Brown <broonie@xxxxxxxxxx> > > Hm... I'm seeing a tag bit not seeing the patch itself... Grr, my mail server tossed it into the spam folder... :-( MBR, Sergey