Re: digital microphone on google chromebook code name banon

From: Chris Gorman
Date: Thu Feb 20 2020 - 20:35:15 EST

Hello Again,

I have found the problem occurring with the previous warning messages.
I have contacted the developer and they are fixing them.

I am trying to figure out how to properly enable pmc_plt_clk so that
when arecord is run they toggle enable count, and prepare count in the
clk_summary as is done with an aplay command. I have a realtek
5645/5650 and am running a braswell / cherrytrail chromebook.

The clk_summary has the following in it with nothing running.

enable prepare protect
duty
clock count count count rate
accuracy phase cycle
---------------------------------------------------------------------------------------------
xtal 0 0 0 19200000
0 0 50000
pmc_plt_clk_5 0 0 0 19200000
0 0 50000
pmc_plt_clk_4 0 0 0 19200000
0 0 50000
pmc_plt_clk_3 0 0 0 19200000
0 0 50000
pmc_plt_clk_2 0 0 0 19200000
0 0 50000
pmc_plt_clk_1 0 0 0 19200000
0 0 50000
pmc_plt_clk_0 0 0 0 19200000
0 0 50000
lpss_clk 2 2 0 100000000
0 0 50000
8086228A:00 0 0 0 100000000
0 0 50000
8086228A:00-div 0 0 0 100000000
0 0 50000
8086228A:00-update 0 0 0 100000000
0 0 50000


On Tue, Feb 18, 2020 at 10:31 PM Chris Gorman <chrisjohgorman@xxxxxxxxx> wrote:
>
> Hello All,
>
> I have been doing some more research into my problem microphone and
> came up with some kernel error messages. The dmesg output from my
> machine follows with a few bits cut out. Everything below after
> 19.828677 shows an error. I am particularly interested in 723.334601
> and 723.334661 which show up during running aplay. It seems that
> there is something wrong with my intel_sst_acpi driver? It
> initializes, but then errors due to wait timeouts. The last two error
> messages 1867.44593 and 1867.446002, are from an arecord.
> Interestingly no further wait timeout messages occur after the record
> attempt. I will try git bisect tomorrow to see if I can isolate when
> the error messages start showing up. I don't believe they existed in
> 5.5-rc6, but I will find out. If anyone has ideas on how to fix
> either my error messages or my dmic, please let me know. I am not on
> the mailing list due to the high volume of messages, so if you respond
> please cc me directly. Thanks for your time.
>
> Chris
>
> [ 1.050358] rt5645 i2c-10EC5650:00: Detected Google Chrome platform
> ---snip---
> [ 1.477956] intel_sst_acpi 808622A8:00: LPE base: 0xd1000000 size:0x200000
> [ 1.477962] intel_sst_acpi 808622A8:00: IRAM base: 0xd10c0000
> [ 1.477994] intel_sst_acpi 808622A8:00: DRAM base: 0xd1100000
> [ 1.478010] intel_sst_acpi 808622A8:00: SHIM base: 0xd1140000
> [ 1.478023] intel_sst_acpi 808622A8:00: Mailbox base: 0xd1144000
> [ 1.478034] intel_sst_acpi 808622A8:00: DDR base: 0x20000000
> [ 1.478544] intel_sst_acpi 808622A8:00: Got drv data max stream 25
> [ 1.478938] cht-bsw-rt5645 cht-bsw-rt5645: quirk PMC_PLT_CLK_0 enabled
> [ 1.484286] cht-bsw-rt5645 cht-bsw-rt5645: snd-soc-dummy-dai <->
> media-cpu-dai mapping ok
> [ 1.484364] cht-bsw-rt5645 cht-bsw-rt5645: snd-soc-dummy-dai <->
> deepbuffer-cpu-dai mapping ok
> [ 1.485720] cht-bsw-rt5645 cht-bsw-rt5645: rt5645-aif1 <->
> ssp2-port mapping ok
> ---snip---
> [ 19.828677] intel_sst_acpi 808622A8:00: FW Version 01.0b.02.02
> ---errors from here on---
> [ 31.278276] intel_sst_acpi 808622A8:00: Wait timed-out
> condition:0x0, msg_id:0x1 fw_state 0x3
> [ 31.278287] intel_sst_acpi 808622A8:00: fw returned err -16
> [ 31.278299] sst-mfld-platform sst-mfld-platform: ASoC: PRE_PMD:
> pcm0_in event failed: -16
> [ 32.300753] intel_sst_acpi 808622A8:00: Wait timed-out
> condition:0x0, msg_id:0x1 fw_state 0x3
> [ 32.300761] intel_sst_acpi 808622A8:00: fw returned err -16
> [ 32.300770] sst-mfld-platform sst-mfld-platform: ASoC: POST_PMD:
> media0_out event failed: -16
> [ 33.324565] intel_sst_acpi 808622A8:00: Wait timed-out
> condition:0x0, msg_id:0x1 fw_state 0x3
> [ 33.324593] intel_sst_acpi 808622A8:00: fw returned err -16
> [ 33.324623] sst-mfld-platform sst-mfld-platform: ASoC: POST_PMD:
> codec_out0 mix 0 event failed: -16
> [ 34.347757] intel_sst_acpi 808622A8:00: Wait timed-out
> condition:0x0, msg_id:0x1 fw_state 0x3
> [ 34.347766] intel_sst_acpi 808622A8:00: fw returned err -16
> [ 34.347779] sst-mfld-platform sst-mfld-platform: ASoC: POST_PMD:
> media0_out mix 0 event failed: -16
> [ 723.334601] intel_sst_acpi 808622A8:00: FW sent error response 0x40015
> [ 723.334661] intel_sst_acpi 808622A8:00: FW sent error response 0x40006
> [ 768.479671] intel_sst_acpi 808622A8:00: Wait timed-out
> condition:0x0, msg_id:0x1 fw_state 0x3
> [ 768.479702] intel_sst_acpi 808622A8:00: fw returned err -16
> [ 768.479739] sst-mfld-platform sst-mfld-platform: ASoC: PRE_PMD:
> pcm0_in event failed: -16
> [ 769.503586] intel_sst_acpi 808622A8:00: Wait timed-out
> condition:0x0, msg_id:0x1 fw_state 0x3
> [ 769.503614] intel_sst_acpi 808622A8:00: fw returned err -16
> [ 769.503643] sst-mfld-platform sst-mfld-platform: ASoC: POST_PMD:
> media0_out event failed: -16
> [ 770.527829] intel_sst_acpi 808622A8:00: Wait timed-out
> condition:0x0, msg_id:0x1 fw_state 0x3
> [ 770.527837] intel_sst_acpi 808622A8:00: fw returned err -16
> [ 770.527846] sst-mfld-platform sst-mfld-platform: ASoC: POST_PMD:
> codec_out0 mix 0 event failed: -16
> [ 771.552544] intel_sst_acpi 808622A8:00: Wait timed-out
> condition:0x0, msg_id:0x1 fw_state 0x3
> [ 771.552575] intel_sst_acpi 808622A8:00: fw returned err -16
> [ 771.552613] sst-mfld-platform sst-mfld-platform: ASoC: POST_PMD:
> media0_out mix 0 event failed: -16
> ---snip---
> [ 1867.445943] intel_sst_acpi 808622A8:00: FW sent error response 0x40015
> [ 1867.446002] intel_sst_acpi 808622A8:00: FW sent error response 0x40006
>
> On Fri, Feb 14, 2020 at 2:26 PM Chris Gorman <chrisjohgorman@xxxxxxxxx> wrote:
> >
> > Hello All,
> >
> > I have a problem with my laptop recording via the digital microphone.
> > I did try to explain the problem on
> > https://bugzilla.kernel.org/show_bug.cgi?id=95681, but I have heard no
> > response on the issue, so I am bugging the mailing list in hopes that
> > someone will have a magic fix for me. ;)
> >
> > My laptop is a google chromebook, braswell, banon. It is of the intel
> > strago family. When I try to record all I get is white noise. I can
> > reduce the level of noise via alsamixer, but I have to reduce all the
> > capture levels to 5 or lower.
> >
> > I reached out to Sam McNally (thank you sam) from chromium regarding
> > his patch to cht_bsw_rt5645.c
> > adebb11139029ddf1fba6f796c4a476f17eacddc. He was quite nice and
> > helpful. According to Sam, the banon chromebooks dmic works with
> > their chromeos 4.9 and chromeos 5.4 kernels. Unfortunately the dmic
> > still failed on my system when I tried the chromeos 5.4 kernel.
> > Perhaps the problem is my new coreboot 4.11 bios, whereas chrome uses
> > an older bios? I don't know.
> >
> > Sam also pointed me to checking /sys/kernel/debug/clk/clk_summary.
> > While recording I get..
> >
> > pmc_plt_clk_0 0 0 0 19200000
> > 0 0 50000
> >
> > and while playing everything's fine and I get...
> >
> > pmc_plt_clk_0 1 1 0 19200000
> > 0 0 50000
> >
> > This is clearly the problem. I don't know how to get the clock
> > working with the capture function though.
> >
> > My kernel configs are ...
> >
> > SOUND = y
> > SND = y
> > SND_SOC = y
> > SND_SOC_INTEL_MACH = y
> > SND_SST_ATOM_HIFI2_PLATFORM = y
> > SND_SST_ATOM_HIFI2_PLATFORM_ACPI = y
> > I2C = y
> > ACPI = y
> > X86_INTEL_LPSS = y
> > SND_SOC_ACPI = y
> > SND_SOC_INTEL_CHT_BSW_RT5645_MACH = y
> > SND_SOC_RT5645 = y
> > SND_SOC_DMIC = y
> >
> > and I am running linux 5.5.0. I welcome patches and suggestions, but
> > have not subscribed to the mailing list because of the volume of
> > emails, so please cc me with any response.
> >
> > Thanks in advance.
> >
> > Chris Gorman