20240116使用Firefly的AIO-3399J的预编译的Android10固件确认RT5640声卡信息

2024/1/16 17:55

百度：RK3399 ALC5640

RK3399 RT5640

BING：RK3399 ALC5640

LINE-IN接麦克风不会有声音的。

耳机只有右边有声音，但是偏小，可以通过音量调节增大的！

https://huaweicloud.csdn.net/64eeaf5b6ffa502025761f17.html

rk3399 android 11 audio rt5651调试

1.cat /proc/asound/cards 可以产看是否有注册上声卡。

2.tinycap 直接录音看是否有声音，如果没有声音就是驱动问题。

3.录音的时候命令tinymix查看通路

4.最终的分析是没有micbias1电压

5.查看寄存器，设置寄存器cat /sys/kernel/debug/regmap/

[ 1.885647] ashmem: initialized

[ 1.888816] optee: probing for conduit method from DT.

[ 1.888923] optee: revision 1.1

[ 1.889280] optee: initialized driver

[ 1.889324] rknandbase v1.2 2021-01-07

[ 1.889943] usbcore: registered new interface driver snd-usb-audio
[ 1.892127] rt5640 1-001c: Can not read property hp-con-gpio

[ 1.901555] netem: version 1.3

[ 1.901623] u32 classifier

[ 1.901650] Actions configured

[ 1.902692] xt_time: kernel timezone is -0000

[ 1.902911] gre: GRE over IPv4 demultiplexor driver

[ 1.902940] IPv4 over IPsec tunneling driver

[ 1.903987] Initializing XFRM netlink socket

[ 1.957297] midgard ff9a0000.gpu: Probed as mali0

[ 1.957616] rockchip-dmc dmc: Linked as a consumer to regulator.16

[ 1.957635] rockchip-dmc dmc: Failed to get ddr_leakage

[ 1.957836] rockchip-dmc dmc: avs=0

[ 1.957969] rockchip-dmc dmc: l=-2147483648 h=2147483647 hyst=0 l_limit=0 h_limit=0 h_table=0

[ 1.957987] rockchip-dmc dmc: could not find power_model node

[ 1.959070] asoc-simple-card hdmi-sound: i2s-hifi <-> ff8a0000.i2s mapping ok
[ 1.962886] asoc-simple-card rt5640-sound: rt5640-aif1 <-> ff890000.i2s mapping ok
[ 1.963592] asoc-simple-card rt5640-sound: rt5640-aif2 <-> ff890000.i2s mapping ok
[ 1.965825] input: rockchip,rt5640-codec Headphone Jack as /devices/platform/rt5640-sound/sound/card1/input1

[ 1.967777] lzfdebug enter rtc_hctosys

[ 1.967914] rk808-rtc rk808-rtc: setting system clock to 2024-01-09 03:02:20 UTC (1704769340)

[ 1.968461] It doesn't contain Rogue gpu

[ 1.968920] cfg80211: Loading compiled-in X.509 certificates for regulatory database

[ 1.969831] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'

[ 18.865336] libprocessgroup: Successfully killed process cgroup uid 1000 pid 290 in 5ms

[ 18.865938] init: Service 'idmap2d' (pid 290) received signal 9
[ 23.519262] rt5640_set_linein enter

[ 32.052532] vdd3v3_pcie: disabling

[ 32.052600] vcc_sd: disabling

[ 32.052618] vcc_otg_vbus: disabling

[ 32.052634] vcc_mipi: disabling

:/ #

:/ # cat /pr

proc/ product/ product_services

:/ # cat /proc/asound/ca

card0/ card1/ cards

:/ # cat /proc/asound/cards

0 [rockchiphdmi ]: rockchip_hdmi - rockchip,hdmi

rockchip,hdmi
1 [rockchiprt5640c]: rockchip_rt5640 - rockchip,rt5640-codec
rockchip,rt5640-codec

:/ #

:/ # cd /dev/snd/

:/dev/snd #

:/dev/snd # ls -l

total 0
crw-rw---- 1 system audio 116, 3 2024-01-09 03:02 controlC0
crw-rw---- 1 system audio 116, 8 2024-01-09 03:02 controlC1
crw-rw---- 1 system audio 116, 2 2024-01-09 03:02 pcmC0D0p
crw-rw---- 1 system audio 116, 5 2024-01-09 03:02 pcmC1D0c
crw-rw---- 1 system audio 116, 4 2024-01-09 03:02 pcmC1D0p
crw-rw---- 1 system audio 116, 7 2024-01-09 03:02 pcmC1D1c
crw-rw---- 1 system audio 116, 6 2024-01-09 03:02 pcmC1D1p
crw-rw---- 1 system audio 116, 33 2024-01-09 03:02 timer

:/dev/snd #

1|:/dev/snd # cd /sys/kernel/debug/

:/sys/kernel/debug # cd regmap/

:/sys/kernel/debug/regmap #

127|:/sys/kernel/debug/regmap # ls -l

total 0

drwxr-xr-x 2 root root 0 1970-01-01 00:00 0-001b

drwxr-xr-x 2 root root 0 1970-01-01 00:00 0-0040

drwxr-xr-x 2 root root 0 1970-01-01 00:00 0-0041
drwxr-xr-x 2 root root 0 2024-01-09 03:02 1-001c

drwxr-xr-x 2 root root 0 1970-01-01 00:00 dummy-power-management@ff310000

drwxr-xr-x 2 root root 0 1970-01-01 00:00 dummy-qos@ffa58000

drwxr-xr-x 2 root root 0 1970-01-01 00:00 dummy-qos@ffa5c000

drwxr-xr-x 2 root root 0 1970-01-01 00:00 dummy-qos@ffa60080

drwxr-xr-x 2 root root 0 1970-01-01 00:00 dummy-qos@ffa60100

drwxr-xr-x 2 root root 0 1970-01-01 00:00 dummy-qos@ffa60180

drwxr-xr-x 2 root root 0 1970-01-01 00:00 dummy-qos@ffa70000

drwxr-xr-x 2 root root 0 1970-01-01 00:00 dummy-qos@ffa70080

drwxr-xr-x 2 root root 0 1970-01-01 00:00 dummy-qos@ffa74000

drwxr-xr-x 2 root root 0 1970-01-01 00:00 dummy-qos@ffa76000

drwxr-xr-x 2 root root 0 1970-01-01 00:00 dummy-qos@ffa90000

drwxr-xr-x 2 root root 0 1970-01-01 00:00 dummy-qos@ffa98000

drwxr-xr-x 2 root root 0 1970-01-01 00:00 dummy-qos@ffaa0000

drwxr-xr-x 2 root root 0 1970-01-01 00:00 dummy-qos@ffaa0080

drwxr-xr-x 2 root root 0 1970-01-01 00:00 dummy-qos@ffaa8000

drwxr-xr-x 2 root root 0 1970-01-01 00:00 dummy-qos@ffaa8080

drwxr-xr-x 2 root root 0 1970-01-01 00:00 dummy-qos@ffab0000

drwxr-xr-x 2 root root 0 1970-01-01 00:00 dummy-qos@ffab0080

drwxr-xr-x 2 root root 0 1970-01-01 00:00 dummy-qos@ffab8000

drwxr-xr-x 2 root root 0 1970-01-01 00:00 dummy-qos@ffac0000

drwxr-xr-x 2 root root 0 1970-01-01 00:00 dummy-qos@ffac0080

drwxr-xr-x 2 root root 0 1970-01-01 00:00 dummy-qos@ffac8000

drwxr-xr-x 2 root root 0 1970-01-01 00:00 dummy-qos@ffac8080

drwxr-xr-x 2 root root 0 1970-01-01 00:00 dummy-qos@ffad0000

drwxr-xr-x 2 root root 0 1970-01-01 00:00 dummy-qos@ffad8080

drwxr-xr-x 2 root root 0 1970-01-01 00:00 dummy-qos@ffae0000

drwxr-xr-x 2 root root 0 1970-01-01 00:00 dummy-syscon@ff320000

drwxr-xr-x 2 root root 0 1970-01-01 00:00 dummy-syscon@ff770000

drwxr-xr-x 2 root root 0 2024-01-09 03:02 ff880000.i2s

drwxr-xr-x 2 root root 0 2024-01-09 03:02 ff890000.i2s

drwxr-xr-x 2 root root 0 2024-01-09 03:02 ff8a0000.i2s

drwxr-xr-x 2 root root 0 197

2|:/sys/kernel/debug/regmap # cd 1-001c/

:/sys/kernel/debug/regmap/1-001c # ls -l

total 0
-r-------- 1 root root 0 2024-01-09 03:02 PR
-r-------- 1 root root 0 2024-01-09 03:02 access
-rw------- 1 root root 0 2024-01-09 03:02 cache_bypass
-r-------- 1 root root 0 2024-01-09 03:02 cache_dirty
-rw------- 1 root root 0 2024-01-09 03:02 cache_only
-r-------- 1 root root 0 2024-01-09 03:02 name
-r-------- 1 root root 0 2024-01-09 03:02 range
-r-------- 1 root root 0 2024-01-09 03:02 rbtree
-r-------- 1 root root 0 2024-01-09 03:02 registers
:/sys/kernel/debug/regmap/1-001c # cat name

rt5640

:/sys/kernel/debug/regmap/1-001c #
:/sys/kernel/debug/regmap/1-001c # cat range

0-4

d-f

19-1e

27-2f

参考资料：
https://blog.csdn.net/weixin_55163060/article/details/126061028
RK3399 ALC5640芯片配置

https://blog.csdn.net/huang_165/article/details/85321945

rk3399调试alc5651(audio模块)之操作方法

https://www.t-firefly.com/download/Firefly-RK3399/docs/Chip Specifications/ALC5640-VB DataSheet_0.91.pdf

https://huaweicloud.csdn.net/64eeaf5b6ffa502025761f17.html?dp_token=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpZCI6MjQwNTYwLCJleHAiOjE3MDUyODEwMDcsImlhdCI6MTcwNDY3NjIwNywidXNlcm5hbWUiOiJ3YjQ5MTYifQ.WJBZT9wsjubmXfe1sM1UzHgL4k-hUBsXiTGJI116Wig

https://huaweicloud.csdn.net/64eeaf5b6ffa502025761f17.html

rk3399 android 11 audio rt5651调试

Max.Chen ?·? 2022-07-01 22:51:55 发布

功能:rt5651遇到无法录音的问题，分析及解决。

1.cat /proc/asound/cards 可以产看是否有注册上声卡。

2.tinycap 直接录音看是否有声音，如果没有声音就是驱动问题。

3.录音的时候命令tinymix查看通路

4.最终的分析是没有micbias1电压

5.查看寄存器，设置寄存器cat /sys/kernel/debug/regmap/

https://blog.csdn.net/W_nvshenglu/article/details/120012333

rk3399 rt5640 录音调试记录

https://blog.csdn.net/weixin_39862484/article/details/111859895

android dts配置_「7.1」[RK3399][Android7.1] 移植笔记 --- 音频Codec RT5640添加 - seo实验室...

https://bbs.t-firefly.com/forum.php?mod=viewthread\&tid=3657

【General】 rk3399 audio:rt5640 ; linux5.10

https://blog.csdn.net/u013021855/article/details/126782327

rk3399pro添加ALC5640音频配置

DDR Version 1.26 20210628

soft reset

SRX

channel 0

CS = 0

MR0=0x18

MR4=0x2

MR5=0x1

MR8=0x8

MR12=0x72

MR14=0x72

MR18=0x0

MR19=0x0

MR24=0x8

MR25=0x0

channel 1

CS = 0

MR0=0x18

MR4=0x2

MR5=0x1

MR8=0x8

MR12=0x72

MR14=0x72

MR18=0x0

MR19=0x0

MR24=0x8

MR25=0x0

channel 0 training pass!

channel 1 training pass!

change freq to 416MHz 0,1

Channel 0: LPDDR4,416MHz

Bus Width=32 Col=10 Bank=8 Row=15 CS=1 Die Bus-Width=16 Size=1024MB

Channel 1: LPDDR4,416MHz

Bus Width=32 Col=10 Bank=8 Row=15 CS=1 Die Bus-Width=16 Size=1024MB

256B stride

channel 0

CS = 0

MR0=0x18

MR4=0x2

MR5=0x1

MR8=0x8

MR12=0x72

MR14=0x72

MR18=0x0

MR19=0x0

MR24=0x8

MR25=0x0

channel 1

CS = 0

MR0=0x18

MR4=0x2

MR5=0x1

MR8=0x8

MR12=0x72

MR14=0x72

MR18=0x0

MR19=0x0

MR24=0x8

MR25=0x0

channel 0 training pass!

channel 1 training pass!

channel 0, cs 0, advanced training done

channel 1, cs 0, advanced training done

change freq to 856MHz 1,0

ch 0 ddrconfig = 0x101, ddrsize = 0x20

ch 1 ddrconfig = 0x101, ddrsize = 0x20

pmugrf_os_reg[2] = 0x3281F281, stride = 0x9

ddr_set_rate to 328MHZ

ddr_set_rate to 666MHZ

ddr_set_rate to 416MHZ, ctl_index 0

ddr_set_rate to 856MHZ, ctl_index 1

support 416 856 328 666 MHz, current 856MHz

OUT

Boot1 Release Time: May 29 2020 17:36:36, version: 1.26

CPUId = 0x0

ChipType = 0x10, 438

SdmmcInit=2 0

BootCapSize=100000

UserCapSize=29844MB

FwPartOffset=2000 , 100000

mmc0:cmd8,20

mmc0:cmd5,20

mmc0:cmd55,20

mmc0:cmd1,20

mmc0:cmd8,20

mmc0:cmd5,20

mmc0:cmd55,20

mmc0:cmd1,20

mmc0:cmd8,20

mmc0:cmd5,20

mmc0:cmd55,20

mmc0:cmd1,20

SdmmcInit=0 1

StorageInit ok = 68742

SecureMode = 0

SecureInit read PBA: 0x4

SecureInit read PBA: 0x404

SecureInit read PBA: 0x804

SecureInit read PBA: 0xc04

SecureInit read PBA: 0x1004

SecureInit read PBA: 0x1404

SecureInit read PBA: 0x1804

SecureInit read PBA: 0x1c04

SecureInit ret = 0, SecureMode = 0

atags_set_bootdev: ret:(0)

GPT part: 0, name: uboot, start:0x2000, size:0x2000

GPT part: 1, name: trust, start:0x4000, size:0x2000

GPT part: 2, name: misc, start:0x6000, size:0x2000

GPT part: 3, name: dtbo, start:0x8000, size:0x2000

GPT part: 4, name: vbmeta, start:0xa000, size:0x800

GPT part: 5, name: boot, start:0xa800, size:0x20000

GPT part: 6, name: recovery, start:0x2a800, size:0x30000

GPT part: 7, name: backup, start:0x5a800, size:0x38000

GPT part: 8, name: security, start:0x92800, size:0x2000

GPT part: 9, name: cache, start:0x94800, size:0xc0000

GPT part: 10, name: metadata, start:0x154800, size:0x8000

GPT part: 11, name: frp, start:0x15c800, size:0x400

GPT part: 12, name: super, start:0x15cc00, size:0x714000

GPT part: 13, name: oem, start:0x870c00, size:0x100000

GPT part: 14, name: userdata, start:0x970c00, size:0x30d93df

find part:uboot OK. first_lba:0x2000.

find part:trust OK. first_lba:0x4000.

Trust Addr:0x4000, 0x58334c42

No find bl30.bin

Load uboot, ReadLba = 2000

Load OK, addr=0x200000, size=0x101868

RunBL31 0x40000 @ 117621 us

NOTICE: BL31: v1.3(release):845ee93

NOTICE: BL31: Built : 15:51:11, Jul 22 2020

NOTICE: BL31: Rockchip release version: v1.1

INFO: GICv3 with legacy support detected. ARM GICV3 driver initialized in EL3

INFO: Using opteed sec cpu_context!

INFO: boot cpu mask: 0

INFO: plat_rockchip_pmu_init(1196): pd status 3e

INFO: BL31: Initializing runtime services

INFO: BL31: Initializing BL32

INF [0x0] TEE-CORE:init_primary_helper:337: Initializing (1.1.0-266-gee81607c #1 Mon Aug 17 09:23:30 UTC 2020 aarch64)

INF [0x0] TEE-CORE:init_primary_helper:338: Release version: 1.2

INF [0x0] TEE-CORE:init_teecore:83: teecore inits done

INFO: BL31: Preparing for EL3 exit to normal world

INFO: Entry point address = 0x200000

INFO: SPSR = 0x3c9

U-Boot 2017.09 (Dec 13 2023 - 20:09:36 +0800)

Model: Rockchip RK3399 Evaluation Board

PreSerial: 2, raw, 0xff1a0000

DRAM: 2 GiB

Sysmem: init

Relocation Offset: 7db7a000

Relocation fdt: 7bd6e2d0 - 7bd70ceb

CR: M/C/I

Using default environment

dwmmc@fe320000: 1, sdhci@fe330000: 0

Bootdev(atags): mmc 0

MMC0: HS400, 150Mhz

PartType: EFI

boot mode: normal

Android 10.0, Build 2021.3, v2

Found DTB in boot part

DTB: rk-kernel.dtb

HASH(c): OK

ANDROID: fdt overlay OK

I2c0 speed: 400000Hz

PMIC: RK808

vdd_center 900000 uV

vdd_cpu_l 900000 uV

vdd_log 1000000 uV

Could not find baseparameter partition

Model: AIO-3399J HDMI (Android)

Rockchip UBOOT DRM driver version: v1.0.1

xfer: num: 2, addr: 0x50

Monitor has basic audio support

Could not find baseparameter partition

mode:1920x1080

Detailed mode clock 148500 kHz, flags[5]

H: 1920 2008 2052 2200

V: 1080 1084 1089 1125

bus_format: 100a

CEA mode used vic=16

final pixclk = 148500000 tmdsclk = 148500000

PHY powered down in 0 iterations

PHY PLL locked 1 iterations

PHY powered down in 0 iterations

PHY PLL locked 1 iterations

sink has audio support

hdmi_set_clk_regenerator: fs=48000Hz ftdms=148.500MHz N=6144 cts=148500

CLK: (uboot. arml: enter 816000 KHz, init 816000 KHz, kernel 0N/A)

CLK: (uboot. armb: enter 816000 KHz, init 816000 KHz, kernel 0N/A)

aplll 816000 KHz

apllb 816000 KHz

dpll 856000 KHz

cpll 24000 KHz

gpll 800000 KHz

npll 600000 KHz

vpll 148000 KHz

aclk_perihp 133333 KHz

hclk_perihp 66666 KHz

pclk_perihp 33333 KHz

aclk_perilp0 266666 KHz

hclk_perilp0 88888 KHz

pclk_perilp0 44444 KHz

hclk_perilp1 100000 KHz

pclk_perilp1 50000 KHz

Net: eth0: ethernet@fe300000

Hit key to stop autoboot('CTRL+C'): 0

emmc boot

No FDT memory address configured. Default at 0x08300000

libfdt fdt_getprop(): FDT_ERR_NOTFOUND

lzf debug,store_value=AIO-3399J HDMI (Android)

ANDROID: reboot reason: "(none)"

optee api revision: 2.0

Vboot=0, AVB images, AVB verify

read_is_device_unlocked() ops returned that device is UNLOCKED

avb_slot_verify.c:762: ERROR: vbmeta: Error verifying vbmeta image: OK_NOT_SIGNED

get image from preloaded partition...

Could not find "system" partition

Booting IMAGE kernel at 0x00280000 with fdt at 0x08300000...

Fdt Ramdisk skip relocation

Booting Android Image at 0x0027f800 ...

Kernel load addr 0x00280000 size 28321 KiB

RAM disk load addr 0x0a200000 size 786 KiB

Flattened Device Tree blob at 0x08300000

Booting using the fdt blob at 0x08300000

XIP Kernel Image from 0x00280000 to 0x00280000 ... OK

'reserved-memory' ramoops@110000: addr=110000 size=f0000

Using Device Tree in place at 0000000008300000, end 000000000831ef49

failed to reserve drm-cubic-lut memory

Adding bank: 0x00200000 - 0x08400000 (size: 0x08200000)

Adding bank: 0x0a200000 - 0x80000000 (size: 0x75e00000)

Total: 1106.685 ms

Starting kernel ...

[ 0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]

[ 0.000000] Linux version 4.19.193 (rootroot@rootroot-X99-Turbo) (gcc version 6.3.1 20170404 (Linaro GCC 6.3-2017.05), GNU ld (Linaro_Binutils-2017.05) 2.27.0.20161019) #1 SMP PREEMPT Wed Dec 13 20:10:12 CST 2023

[ 0.000000] Machine model: AIO-3399J HDMI (Android)

[ 0.000000] earlycon: uart8250 at MMIO32 0x00000000ff1a0000 (options '')

[ 0.000000] bootconsole [uart8250] enabled

[ 0.000000] OF: fdt: Reserved memory: failed to reserve memory for node 'stb-devinfo@00000000': base 0x0000000000000000, size 0 MiB

[ 0.000000] cma: Reserved 16 MiB at 0x000000007f000000

[ 0.000000] psci: probing for conduit method from DT.

[ 0.000000] psci: PSCIv1.0 detected in firmware.

[ 0.000000] psci: Using standard PSCI v0.2 function IDs

[ 0.000000] psci: Trusted OS migration not required

[ 0.000000] psci: SMC Calling Convention v1.0

[ 0.000000] percpu: Embedded 24 pages/cpu s58968 r8192 d31144 u98304

[ 0.000000] Detected VIPT I-cache on CPU0

[ 0.000000] CPU features: enabling workaround for ARM erratum 845719

[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 507912

[ 0.000000] Kernel command line: storagemedia=emmc androidboot.storagemedia=emmc androidboot.mode=normal androidboot.dtbo_idx=0 androidboot.verifiedbootstate=orange androidboot.slot_suffix= androidboot.serialno=62089c75a9d193d6 console=ttyFIQ0 androidboot.baseband=N/A androidboot.veritymode=enforcing androidboot.hardware=rk30board androidboot.console=ttyFIQ0 androidboot.verifiedbootstate=orange firmware_class.path=/vendor/etc/firmware init=/init rootwait ro loop.max_part=7 androidboot.selinux=permissive earlycon=uart8250,mmio32,0xff1a0000 swiotlb=1 coherent_pool=1m androidboot.boot_devices=fe330000.sdhci,fe320000.dwmmc

[ 0.000000] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)

[ 0.000000] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)

[ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off

[ 0.000000] Memory: 1978460K/2064384K available (15614K kernel code, 2080K rwdata, 6384K rodata, 4224K init, 968K bss, 69540K reserved, 16384K cma-reserved)

[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=6, Nodes=1

[ 0.000000] rcu: Preemptible hierarchical RCU implementation.

[ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=6.

[ 0.000000] Tasks RCU enabled.

[ 0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=6

[ 0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0

[ 0.000000] GICv3: GIC: Using split EOI/Deactivate mode

[ 0.000000] GICv3: Distributor has no Range Selector support

[ 0.000000] GICv3: no VLPI support, no direct LPI support

[ 0.000000] ITS [mem 0xfee20000-0xfee3ffff]

[ 0.000000] ITS@0x00000000fee20000: allocated 65536 Devices @a300000 (flat, esz 8, psz 64K, shr 0)

[ 0.000000] ITS: using cache flushing for cmd queue

[ 0.000000] GIC: using LPI property table @0x0000000000270000

[ 0.000000] GICv3: CPU0: found redistributor 0 region 0:0x00000000fef00000

[ 0.000000] CPU0: using LPI pending table @0x000000000a380000

[ 0.000000] GIC: using cache flushing for LPI property table

[ 0.000000] GICv3: GIC: PPI partition interrupt-partition-0[0] { /cpus/cpu@0[0] /cpus/cpu@1[1] /cpus/cpu@2[2] /cpus/cpu@3[3] }

[ 0.000000] GICv3: GIC: PPI partition interrupt-partition-1[1] { /cpus/cpu@100[4] /cpus/cpu@101[5] }

[ 0.000000] random: random: get_random_bytes called from start_kernel+0x36c/0x4f0 with crng_init=0

[ 0.000000] rockchip_clk_register_frac_branch: could not find dclk_vop0_frac as par

:/ # cd /dev/snd/

:/dev/snd #
:/dev/snd # ls -l
total 0
crw-rw---- 1 system audio 116, 3 2024-01-09 03:02 controlC0
crw-rw---- 1 system audio 116, 8 2024-01-09 03:02 controlC1
crw-rw---- 1 system audio 116, 2 2024-01-09 03:02 pcmC0D0p
crw-rw---- 1 system audio 116, 5 2024-01-09 03:02 pcmC1D0c
crw-rw---- 1 system audio 116, 4 2024-01-09 03:02 pcmC1D0p
crw-rw---- 1 system audio 116, 7 2024-01-09 03:02 pcmC1D1c
crw-rw---- 1 system audio 116, 6 2024-01-09 03:02 pcmC1D1p
crw-rw---- 1 system audio 116, 33 2024-01-09 03:02 timer

:/dev/snd #

:/dev/snd # cat /sys/kernel/debug/reg

regmap/ regulator/

:/dev/snd # cat /sys/kernel/debug/regmap/

cat: /sys/kernel/debug/regmap/: Is a directory

1|:/dev/snd #

1|:/dev/snd # cd /sys/kernel/debug/

:/sys/kernel/debug # ls -l

total 0

drwxr-xr-x 4 root root 0 2024-01-09 03:02 asoc

drwxr-xr-x 2 root root 0 2024-01-09 03:02 audio

drwxr-xr-x 43 root root 0 1970-01-01 00:00 bdi

drwxr-xr-x 3 root root 0 2024-01-09 03:02 binder

drwxr-xr-x 21 root root 0 1970-01-01 00:00 block

drwxr-xr-x 2 root root 0 1970-01-01 00:00 bluetooth

drwxr-xr-x 2 root root 0 2024-01-09 03:02 bt656

drwxr-xr-x 3 root root 0 1970-01-01 00:00 cec

--w------- 1 root root 0 1970-01-01 00:00 clear_warn_once

drwxr-xr-x 466 root root 0 2024-01-09 03:02 clk

-rw-r--r-- 1 root root 0 1970-01-01 00:00 debug_enabled

drwxr-xr-x 2 root root 0 1970-01-01 00:00 device_component

-r--r--r-- 1 root root 0 2024-01-09 03:02 devices_deferred

drwxr-xr-x 2 root root 0 1970-01-01 00:00 dma_buf

drwxr-xr-x 4 root root 0 1970-01-01 00:00 dri

drwxr-xr-x 2 root root 0 1970-01-01 00:00 dw-hdmi

drwxr-xr-x 4 root root 0 1970-01-01 00:00 energy_model

drwxr-xr-x 2 root root 0 1970-01-01 00:00 extfrag

drwxr-xr-x 2 root root 0 1970-01-01 00:00 f2fs

-rw-r--r-- 1 root root 0 2024-01-09 03:02 fault_around_bytes

drwxr-xr-x 15 root root 0 1970-01-01 00:00 fe800000.dwc3

drwxr-xr-x 2 root root 0 1970-01-01 00:00 fe900000.dwc3

-r--r--r-- 1 root root 0 1970-01-01 00:00 gpio

drwxr-xr-x 2 root root 0 2024-01-09 03:02 gpio1830

drwxr-xr-x 3 root root 0 2024-01-09 03:02 hid

drwxr-xr-x 2 root root 0 1970-01-01 00:00 ieee80211

drwxr-xr-x 2 root root 0 1970-01-01 00:00 iio

drwxr-xr-x 3 root root 0 2024-01-09 03:02 iodomain

drwxr-xr-x 2 root root 0 1970-01-01 00:00 ion

drwxr-xr-x 5 root root 0 2024-01-09 03:02 mali0

drwxr-xr-x 2 root root 0 1970-01-01 00:00 memblock

drwxr-xr-x 3 root root 0 2024-01-09 03:02 mmc0

drwxr-xr-x 2 root root 0 2024-01-09 03:02 mmc1

drwxr-xr-x 3 root root 0 2024-01-09 03:02 mmc2

drwxr-xr-x 2 root root 0 1970-01-01 00:00 mtd

drwxr-xr-x 6 root root 0 1970-01-01 00:00 opp

drwxr-xr-x 3 root root 0 1970-01-01 00:00 pinctrl

drwxr-xr-x 23 root root 0 2024-01-09 03:02 pm_genpd

drwxr-xr-x 2 root root 0 2024-01-09 03:02 pm_qos

drwxr-xr-x 6 root root 0 2024-01-09 03:02 pvtm

-r--r--r-- 1 root root 0 1970-01-01 00:00 pwm

drwxr-xr-x 2 root root 0 1970-01-01 00:00 ras

drwxr-xr-x 38 root root 0 1970-01-01 00:00 regmap

drwxr-xr-x 32 root root 0 1970-01-01 00:00 regulator

drwxr-xr-x 2 root root 0 2024-01-09 03:02 rga2_debug

-rw-r--r-- 1 root root 0 2024-01-09 03:02 sched_debug

-rw-r--r-- 1 root root 0 2024-01-09 03:02 sched_features

drwxr-xr-x 2 root root 0 2024-01-09 03:02 sdmmc

-r--r--r-- 1 root root 0 2024-01-09 03:02 sleep_time

drwxr-xr-x 3 root root 0 1970-01-01 00:00 stmmaceth

-r--r--r-- 1 root root 0 2024-01-09 03:02 suspend_stats

drwxr-xr-x 2 root root 0 2024-01-09 03:02 sync

drwxr-xr-x 3 root root 0 1970-01-01 00:00 tee

drwxr-xr-x 6 system root 0 1970-01-01 00:00 tracing

drwxr-xr-x 6 root root 0 1970-01-01 00:00 usb

-r--r--r-- 1 root root 0 1970-01-01 00:00 wakeup_sources

:/sys/kernel/debug # cd reg

regmap/ regulator/

:/sys/kernel/debug # cd regmap/

:/sys/kernel/debug/regmap # ll

sh: ll: inaccessible or not found