On 1/13/22 11:17 PM, Mark Brown 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 alone... :-) > Reviewed-by: Mark Brown <broonie@xxxxxxxxxx> Hm... I'm seeing a tag bit not seeing the patch itself... MBR, Sergey