On 20-03-20, 17:01, Srinivas Kandagatla wrote: > > > On 20/03/2020 16:29, Pierre-Louis Bossart wrote: > > Add new device as a child of the platform device, following the > > following hierarchy: > > > > platform_device > > sdw_master_device > > sdw_slave0 > > Why can't we just remove the platform device layer here and add > sdw_master_device directly? In the case platform_device is the OF device your controller gets probed on. My thinking on this is that drivers should not be directly creating sdw_master_device but it should be done by core as this device is for core to use and handle. Ideally I would love that sdw_master_device is created/handled by core, preferably this be handled as part of sdw_add_bus_master(). But Pierre is trying to solve the limitation of the devices given by ACPI and trying to add sdw_master_driver to handle that. I am not convinced that we should do that. -- ~Vinod