[#3923] reinstallation of snd-ad1981 module will fail

Submitted By: Vivi Li

Open Date

2008-02-20 22:22:51 Close Date

2008-02-28 07:19:56

Priority:

Medium High Assignee:

Cliff Cai

Status:

Closed Fixed In Release:

N/A

Found In Release:

N/A Release:

Category:

N/A Board:

N/A

Processor:

N/A Silicon Revision:

Is this bug repeatable?:

Yes Resolution:

Fixed

Uboot version or rev.:

Toolchain version or rev.:

08r1-8

App binary format:

N/A

Summary: reinstallation of snd-ad1981 module will fail

Details:

In 08r1 branch bf537, install snd-ad1981 and uninstall it immediately, reinstallation of this module will fail.

root:/> modprobe snd-ad1981

ASoC version 0.13.1

AD1980 SoC Audio Codec

asoc: AC97 <-> bf5xx-ac97 mapping ok

ad1980: Found AD1981 - only 2/2 IN/OUT Channels supported

root:/> lsmod

Module Size Used by

snd_ad1981 1188 0

snd_soc_bf5xx 3520 1 snd_ad1981

snd_soc_ad1980 4416 1 snd_ad1981

snd_soc_core 18304 2 snd_soc_bf5xx,snd_soc_ad1980

ac97_bus 1248 1 snd_soc_core

snd_soc_bf5xx_ac97 12428 3 snd_ad1981,snd_soc_bf5xx,snd_soc_ad1980

root:/>

root:/> modprobe -r snd-ad1981

root:/> lsmod

Module Size Used by

root:/>

root:/> modprobe snd-ad1981

ASoC version 0.13.1

Failed to request RX dma 3

root:/>

root:/> lsmod

Module Size Used by

snd_ad1981 1188 0

snd_soc_bf5xx 3520 1 snd_ad1981

snd_soc_ad1980 4416 1 snd_ad1981

snd_soc_core 18304 2 snd_soc_bf5xx,snd_soc_ad1980

ac97_bus 1248 1 snd_soc_core

snd_soc_bf5xx_ac97 12428 3 snd_ad1981,snd_soc_bf5xx,snd_soc_ad1980

root:/>

Follow-ups

--- Cliff Cai 2008-02-20 22:26:35

remove all allocated resources when the module is removed

--- Vivi Li 2008-02-26 02:35:26

It now fails to reinstall ad1981 module in BF548-EZKIT with GPIO error. It's OK

to reinstall ad1980 module in BF537.

BusyBox v1.4.1 (2008-02-25 21:31:22 CST) Built-in shell (msh)

Enter 'help' for a list of built-in commands.

root:/> modprobe snd-ad1981

ASoC version 0.13.1

AD1980 SoC Audio Codec

asoc: AC97 <-> bf5xx-ac97 mapping ok

root:/> lsmod

Module Size Used by

snd_ad1981 1188 0

snd_soc_bf5xx 3616 1 snd_ad1981

snd_soc_ad1980 4416 1 snd_ad1981

snd_soc_core 18304 2 snd_soc_bf5xx,snd_soc_ad1980

ac97_bus 1248 1 snd_soc_core

snd_soc_bf5xx_ac97 13196 3 snd_ad1981,snd_soc_bf5xx,snd_soc_ad1980

root:/> modprobe -r snd-ad1981

root:/> lsmod

Module Size Used by

root:/> modprobe snd-ad1981

ASoC version 0.13.1

bfin-gpio: GPIO 19 is already reserved by SND_AD198x RESE !

Hardware Trace:

0 Target : <0x000048d8> { _dump_stack + 0x0 }

Source : <0x00005ab4> { _gpio_request + 0x108 }

1 Target : <0x00005ab4> { _gpio_request + 0x108 }

Source : <0x0000d202> { _printk + 0x16 }

2 Target : <0x0000d1fe> { _printk + 0x12 }

Source : <0x0000d0b4> { _vprintk + 0x1b8 }

3 Target : <0x0000d0a8> { _vprintk + 0x1ac }

Source : <0x0000d09a> { _vprintk + 0x19e }

4 Target : <0x0000d096> { _vprintk + 0x19a }

Source : <0x0000cef6> { _wake_up_klogd + 0x36 }

5 Target : <0x0000cef2> { _wake_up_klogd + 0x32 }

Source : <0x00009214> { ___wake_up + 0x2c }

6 Target : <0x0000920e> { ___wake_up + 0x26 }

Source : <0x00009200> { ___wake_up + 0x18 }

7 Target : <0x000091fc> { ___wake_up + 0x14 }

Source : <0x000091e6> { ___wake_up_common + 0x52 }

8 Target : <0x000091d8> { ___wake_up_common + 0x44 }

Source : <0x000091ce> { ___wake_up_common + 0x3a }

9 Target : <0x000091c8> { ___wake_up_common + 0x34 }

Source : <0x0001cf64> { _autoremove_wake_function + 0x2c }

10 Target : <0x0001cf4a> { _autoremove_wake_function + 0x12 }

Source : <0x0000a1ac> { _try_to_wake_up + 0x3c }

11 Target : <0x0000a1a4> { _try_to_wake_up + 0x34 }

Source : <0x0000a196> { _try_to_wake_up + 0x26 }

12 Target : <0x0000a190> { _try_to_wake_up + 0x20 }

Source : <0x0000a1ba> { _try_to_wake_up + 0x4a }

13 Target : <0x0000a1b6> { _try_to_wake_up + 0x46 }

Source : <0x0000a23c> { _try_to_wake_up + 0xcc }

14 Target : <0x0000a23a> { _try_to_wake_up + 0xca }

Source : <0x0000a228> { _try_to_wake_up + 0xb8 }

15 Target : <0x0000a20a> { _try_to_wake_up + 0x9a }

Source : <0x0000944a> { ___activate_task + 0x2e }

Stack from 003c3c9c:

00000000 00005ab8 003c3ce0 00000013 031cac5c 00000013 0058aa90

00378140

031cac5c 00000000 03d90800 00310f74 0006809c 0037ddec 0000a1ff

0004580a

005958f8 80228020 80248023 80278026 84300000 84338432 84368434

00008437

80028000 80048003 80078006 80080000 800b800a 800e800c 0000800f

003d1814

00000000 0049b2b4 031cac5c 00000000 03d90808 003d4488 00000000

003c3e08

000cd9e2 03d90808 003d4488 005977d4 00000000 003c3d8c ffffffac

03d90808

Call Trace:

[<000ccd78>] _bus_for_each_drv+0x48/0x6c

[<000ccd70>] _bus_for_each_drv+0x40/0x6c

[<000cdae4>] ___device_attach+0x0/0x4

[<000081a4>] _bfin_gpio_set_wake+0x10/0x98

[<000cdba0>] _device_attach+0x94/0xb0

[<000cdae4>] ___device_attach+0x0/0x4

[<000ccce6>] _bus_attach_device+0x46/0x90

[<000cbd1a>] _device_add+0x3ae/0x4a0

[<000cbd20>] _device_add+0x3b4/0x4a0

[<00068136>] _sysfs_make_dirent+0x1e/0x38

[<000cf388>] _platform_device_add+0xe4/0x160

[<000cf4c4>] _platform_device_alloc+0x1c/0x68

[<000cf4e6>] _platform_device_alloc+0x3e/0x68

[<032c2506>] _init_module+0x46/0x78 [snd_ad1981]

[<00025ea8>] _sys_init_module+0xd54/0x10c8

[<00025ebe>] _sys_init_module+0xd6a/0x10c8

[<00025214>] _sys_init_module+0xc0/0x10c8

[<00033990>] _do_mmap_pgoff+0x608/0x750

[<00025154>] _sys_init_module+0x0/0x10c8

[<00008000>] _blackfin_dcache_flush_range+0x1c/0x28

Failed to request GPIO_19 for reset

soc-audio: probe of soc-audio failed with error -1

root:/>

--- Cliff Cai 2008-02-26 08:13:31

on BF548 ,ad1980 must use one gpio for cold reset,so it must be freed when the

module is removed

--- Vivi Li 2008-02-28 07:19:56

OK now. Close it. Thank you!

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