Hi Fabio, On 01.02.2016 13:05, Fabio Estevam wrote: > Hi Maciej, > > On Mon, Jan 18, 2016 at 5:07 PM, Maciej S. Szmigiero > <mail@xxxxxxxxxxxxxxxxxxxxx> wrote: >> There is no guarantee that on fsl_ssi module load >> SSI registers will have their power-on-reset values. >> >> In fact, if the driver is reloaded the values in >> registers will be whatever they were set to previously. >> >> However, the cache needs to be fully populated at probe >> time to avoid non-atomic allocations during register >> access. >> >> Special case here is imx21-class SSI, since >> according to datasheet it don't have SACC{ST,EN,DIS} >> regs. >> >> This fixes hard lockup on fsl_ssi module reload, >> at least in AC'97 mode. >> >> Fixes: 05cf237972fe ("ASoC: fsl_ssi: Add driver suspend and resume to support MEGA Fast") >> >> Signed-off-by: Maciej S. Szmigiero <mail@xxxxxxxxxxxxxxxxxxxxx> > > I know I have already tested this and it worked fine on a mx6sabresd, > but running linux-next 20160201 on a mx6sl-evk the ssi driver does not > probe anymore: > > [ 2.216954] fsl-asoc-card sound: ASoC: CPU DAI (null) not registered > [ 2.223412] fsl-asoc-card sound: snd_soc_register_card failed (-517) > [ 2.230258] imx-wm8962 sound: ASoC: CPU DAI 202c000.ssi not registered > [ 2.236806] imx-wm8962 sound: snd_soc_register_card failed (-517) > [ 2.244782] snvs_rtc 20cc000.snvs:snvs-rtc-lp: setting system clock > to 1970-01-01 00:01:14 UTC (74) > [ 2.285864] fsl-asoc-card sound: ASoC: CPU DAI (null) not registered > [ 2.292335] fsl-asoc-card sound: snd_soc_register_card failed (-517) > [ 2.299572] imx-wm8962 sound: ASoC: CPU DAI 202c000.ssi not registered > [ 2.306121] imx-wm8962 sound: snd_soc_register_card failed (-517) > > Reverting this patch fixes the problem. > > Wandboard also has the same issue: > > http://arm-soc.lixom.net/bootlogs/next/next-20160201/wandboard-arm-imx_v6_v7_defconfig.html > > Any suggestions? > > Thanks > Is regmap patch from http://www.spinics.net/lists/kernel/msg2161934.html applied to the tested tree? Best regards, Maciej _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel