Messages in this thread | | | Date | Tue, 28 Apr 2020 12:19:51 +0530 | From | Vinod Koul <> | Subject | Re: [RFC 1/5] soundwire: bus_type: add sdw_master_device support |
| |
On 28-04-20, 08:37, Greg KH wrote: > On Tue, Apr 28, 2020 at 10:01:44AM +0530, Vinod Koul wrote: > > > > That is not true for everyone, it is only true for Intel, pls call that > > > > out as well... > > > > > > Why is it not true for everyone? How else do you get the pm stuff back > > > to your hardware? > > > > The rest of the world would do using the real controller device. For > > example the soundwire controller on Qualcomm devices is enumerated as a > > DT device and is using these... > > > > If Intel had a standalone controller or enumerated as individual > > functions, it would have been a PCI device and would manage as such > > If it is not a standalone controller, what exactly is it? I thought it > was an acpi device, am I mistaken? > > What is the device that the proper soundwire controller driver binds to > on an Intel-based system?
The HDA controller which is a PCI device. The device represent HDA function, DSP and Soundwire controller instances (yes it is typically more than one instance)
Thanks -- ~Vinod
| |