On 22-10-19, 18:48, Pierre-Louis Bossart wrote: > The hardware UniqueID, typically enabled with pin-strapping, is > required during enumeration to avoid conflicts between devices of the > same type. > > When there are no devices of the same type, using the UniqueID is > overkill and results in a lot of probe errors due to mismatches > between ACPI tables and hardware capabilities. For example it's not > uncommon for BIOS vendors to copy/paste the same settings between > platforms but the hardware pin-strapping is different. This is > perfectly legit and permitted by MIPI specs. > > With this patchset, the UniqueID is only used when multiple devices of > the same type are detected. The loop to detect multiple identical > devices is not super efficient but with typically fewer than 4 devices > per link there's no real incentive to be smarter. > > This change is only implemented for ACPI platforms, for DeviceTree > there is no change. I do not fully agree with the approach here but I do understand why this was done and do not have a better alternative, so applied now -- ~Vinod _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx https://mailman.alsa-project.org/mailman/listinfo/alsa-devel
