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SubjectRe: [alsa-devel] [PATCH v3] ASoC: sgtl5000: add avc support
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Hi Fabio,
thanks for the testing/reporting!

On 07/20/2017 07:11 PM, Fabio Estevam wrote:
>
> Running linux-next-20170720 on a imx53-qsb I get the following issue:
>
> root@imx53qsb:~# reboot
...
> ALSA: Storing mixer settings...
> [ 20.031604] Unable to handle kernel paging request at virtual
> address fffffffe
...
> [ 20.242852] Backtrace:
> [ 20.245318] [<c0759ae0>] (snd_soc_component_read) from [<c0759bc8>]
> (snd_soc_read+0x1c/0x30)
> [ 20.253774] [<c0759bac>] (snd_soc_read) from [<c075e19c>]
> (avc_get_threshold+0x1c/0x90)
> [ 20.261798] [<c075e180>] (avc_get_threshold) from [<c07349fc>]
> (snd_ctl_ioctl+0x5b8/0xb38)
...
> If I revert a729526720059ae ("ASoC: sgtl5000: add avc support") the
> problem does not happen.
>
> Could you please fix this issue?

Does this occur only on reboot or everytime the driver tries to read the
AVC threshold (avc_get_threshold)?
Are you able to set the AVC threshold (using amixer)?

Thanks & regards,
Richard.L

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