On Sun, 11 Jun 2023 09:37:21 +0200, Takashi Iwai wrote: > > On Sat, 10 Jun 2023 16:26:37 +0200, > Mark Brown wrote: > > > > HDA can only support single register read and write operations so does not > > benefit from block writes. This means it gets no benefit from using the > > rbtree register cache over the maple tree register cache so convert it to > > use maple trees instead, it is more modern. > > > > Signed-off-by: Mark Brown <broonie@xxxxxxxxxx> > > Thanks, applied to for-next branch. Now I noticed errors like snd_hda_codec_realtek hdaudioC0D0: Unable to sync register 0x2f0009. -5 and it turned out that the error comes from this patch. This is an error from regache_sync_val(), and it indicates that the synced register is write-only; regcache_maple_sync() tries to sync all cached values no matter whether it's writable or not, then hitting this. I'll submit a fix patch. thanks, Takashi
