On Tue, Dec 27, 2022 at 02:45:13PM +0100, Greg KH wrote: > On Tue, Dec 27, 2022 at 01:04:55PM +0000, Mark Brown wrote: > > On Sat, Dec 24, 2022 at 10:02:59AM +0100, Greg KH wrote: > > > > + * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved. > > > All of the code in this patch series is older than 2022 as I know it has > > > been in shipping devices for many years. Please use the proper > > > copyright year to make your lawyers happy... > > Are you *positive* about this. Based on some preparatory discussions > > the Qualcomm people had with Takashi and I it seemed like this was a new > > version of existing concepts. I'm sure they had something already but > > it's not obvious to me that they're just posting the same code. > I thought that this same code has been shipping in devices for a few > years now in the last few Samsung phone models. Is this not the same > code that is in those devices? > If not, why not, what happened to that codebase that makes it not worthy > of being submitted upstream? I don't specifically know anything about that code but I'd expect that for out of tree code breaking new ground like this there'd be a strong likelyhood that there'd be design level issues and that's what the pre submission discussions were all about - how to fit the concept into the kernel subsystems in a way that might be maintainable. There's also been the whole transition to their new DSP firmware going on. It's possible that what was shipped was implemented in the same way with the same code but I'd not assume that this is the case without actually comparing the two.
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