On 02/01/2016 08:59 AM, Pierre-Louis Bossart wrote: > > On 01/31/2016 07:51 AM, Tobias Mädel wrote: >> Hello, >> >> we're currently trying to get the new bytcr_rt5651 driver to run on a >> TrekStor SurfTab wintron 7.0 (x86 tablet). >> >> Unlike the previous driver for the rt5640 chipset, the new bytcr_rt5651 >> driver actually detects the card out-of-the-box. > > Good to know. > >> >> This is the dmesg output on the device: >> bytcr_rt5651: snd-soc-dummy-dai <-> media-cpu-dai mapping ok >> bytcr_rt5651: snd-soc-dummy-dai <-> deepbuffer-cpu-dai mapping ok >> bytcr_rt5651: Invalid direction for compress P 0, C 0 >> bytcr_rt5651: ASoC: can't create compress Compress >> bytcr_rt5651: ASoC: failed to instantiate card -22 >> bytcr_rt5651: devm_snd_soc_register_card failed -22 >> bytcr_rt5651: probe of bytcr_rt5651 failed with error -22 >> >> So -- apparently it is successfully initializing 2 of the DAIs, but it >> can't find the Compress-DAI. My first guess would just be to try and >> disable the Compress DAI in the code just for debugging, but I'm sure >> that there's a better way. >> >> I'm running a bleeding edge kernel build from the main linux git tree, >> build from yesterday's github.com/torvalds/linux.git repo. >> >> Does anyone have any ideas on how to get alsa to detect the card properly? >> >> Here's the complete dmesg output: >> https://gist.github.com/Manawyrm/70d90e95e9c578a7fb26 > > This is weird. I checked the DSDT tables and couldn't see anything blatantly wrong. > If there was a problem with the compress DAI it would show on other platforms as well. > It could also be a configuration issue with bad controls, I put my UCM configuration on github plbosssart/UCM/, you may want to look into this as well. The same issues happens with an Asus t100 with 4.5-rc2, I get the same message of invalid direction so it's not a codec issue but a regression on all Atom platforms. The code for this direction check was added by commit " ASoC: compress: Fix compress device direction check" a1068045883ed4a18363a4ebad0c3d55e473b716pe by Vinod Koul (cc:ed), somehow the logic must be wrong or missing something. _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
