On Thu, Aug 27, 2015 at 2:07 AM, Linus Torvalds <torva...@linux-foundation.org> wrote: > On Wed, Aug 26, 2015 at 1:06 AM, Liam Girdwood > <liam.r.girdw...@linux.intel.com> wrote: >> >> I think the options are to either :- >> >> 1) Don not support audio DSP drivers using topology data as built-in >> drivers. Audio is not really a critical system required for booting >> anyway. > > Yes, forcing it to be a module and not letting people compile it in by > mistake (and then not have it work) is an option. > > That said, there are situations where people don't want to use > modules. I used to eschew them for security reasons, for example - now > I instead just do a one-time temporary key. But others may have other > reasons to try to avoid modules. > >> 2) Create a default PCM for every driver that has topology data on the >> assumption that every sound card will at least 1 PCM. This PCM can then >> be re-configured when the FW is loaded. > > That would seem to be the better option if it is reasonably implementable. > > Of course, some kind of timer-based retry (limited *somehow*) of the > fw loading could work too, but smells really really hacky.
Yeah, years ago, we discussed to use -EPROBE_DEFER for the situation, which should be one kind of fix, but looks there were objections at that time. thanks, -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/