On Wed, Jul 01, 2020 at 10:50:49AM +0100, Mark Brown wrote: > On Tue, Jun 30, 2020 at 02:27:10PM -0300, Jason Gunthorpe wrote: > > > I wonder if SW_MFD might me more apt though? Based on Mark's remarks > > current MFD is 'hw' MFD where the created platform_devices expect a > > MMIO pass through, while this is a MFD a device-specific SW > > interfacing layer. > > Another part of this is that there's not a clean cut over between MMIO > and not using any hardware resources at all - for example a device might > be connected over I2C but use resources to distribute interrupts to > subdevices. How does the subdevice do anything if it only received an interrupt? That sounds rather more like virtual bus's use case.. Jason