Efika (mpc5200b): sound doesn't build/work from linux-2.6.38.x

board: Genesi Efika (MPC5200B)
problem: unable to use sound subsystem instead it works fine with linux-2.6.36.4 (+ device tree supplement, attached) .

With linux-2.6.38.8 and linux-2.6.39.4 it doesn't build.
That's from my build log:

[...]
  LD      sound/soc/blackfin/built-in.o
  LD      sound/soc/codecs/built-in.o
  CC [M]  sound/soc/codecs/stac9766.o
  LD [M]  sound/soc/codecs/snd-soc-stac9766.o
  LD      sound/soc/davinci/built-in.o
  LD      sound/soc/ep93xx/built-in.o
  LD      sound/soc/fsl/built-in.o
  CC [M]  sound/soc/fsl/mpc5200_dma.o
sound/soc/fsl/mpc5200_dma.c:372:16: warning: 'struct of_device' declared inside parameter list
sound/soc/fsl/mpc5200_dma.c:372:16: warning: its scope is only this definition or declaration, which is probably not what you want
sound/soc/fsl/mpc5200_dma.c: In function 'mpc5200_hpcd_probe':
sound/soc/fsl/mpc5200_dma.c:383:31: error: dereferencing pointer to incomplete type
sound/soc/fsl/mpc5200_dma.c:384:31: error: dereferencing pointer to incomplete type
sound/soc/fsl/mpc5200_dma.c:385:14: error: dereferencing pointer to incomplete type
sound/soc/fsl/mpc5200_dma.c:390:14: error: dereferencing pointer to incomplete type
sound/soc/fsl/mpc5200_dma.c:402:27: error: dereferencing pointer to incomplete type
sound/soc/fsl/mpc5200_dma.c:414:20: error: dereferencing pointer to incomplete type
sound/soc/fsl/mpc5200_dma.c:428:14: error: dereferencing pointer to incomplete type
sound/soc/fsl/mpc5200_dma.c:475:21: error: dereferencing pointer to incomplete type
sound/soc/fsl/mpc5200_dma.c:478:38: error: dereferencing pointer to incomplete type
sound/soc/fsl/mpc5200_dma.c: At top level:
sound/soc/fsl/mpc5200_dma.c:490:39: warning: 'struct of_device' declared inside parameter list
sound/soc/fsl/mpc5200_dma.c: In function 'mpc5200_hpcd_remove':
sound/soc/fsl/mpc5200_dma.c:492:47: error: dereferencing pointer to incomplete type
sound/soc/fsl/mpc5200_dma.c:494:2: error: dereferencing pointer to incomplete type
sound/soc/fsl/mpc5200_dma.c:496:33: error: dereferencing pointer to incomplete type
sound/soc/fsl/mpc5200_dma.c:508:21: error: dereferencing pointer to incomplete type
sound/soc/fsl/mpc5200_dma.c: At top level:
sound/soc/fsl/mpc5200_dma.c:522:2: error: unknown field 'owner' specified in initializer
sound/soc/fsl/mpc5200_dma.c:522:2: warning: initialization from incompatible pointer type
sound/soc/fsl/mpc5200_dma.c:523:2: error: unknown field 'name' specified in initializer
sound/soc/fsl/mpc5200_dma.c:523:2: warning: initialization from incompatible pointer type
sound/soc/fsl/mpc5200_dma.c:524:2: error: unknown field 'match_table' specified in initializer
sound/soc/fsl/mpc5200_dma.c:524:2: warning: initialization from incompatible pointer type
sound/soc/fsl/mpc5200_dma.c:525:2: warning: initialization from incompatible pointer type
sound/soc/fsl/mpc5200_dma.c:526:2: warning: initialization from incompatible pointer type
make[3]: *** [sound/soc/fsl/mpc5200_dma.o] Error 1
make[2]: *** [sound/soc/fsl] Error 2
make[1]: *** [sound/soc] Error 2
make: *** [sound] Error 2


With linux-3.0.18, linux-3.1.10 and linux-3.2.2 it builds but doesn't work.
That's from my dmesg:

[...]
asoc: error - multiple DAI f0002200.sound registered with no name
mpc5200-psc-ac97 f0002200.sound: Failed to register DAI
mpc5200-psc-ac97: probe of f0002200.sound failed with error -22


best,
--nico
-- 
acrux [off-list ref]

On Thu, 2 Feb 2012 03:48:03 +0100
acrux [off-list ref] wrote:

board: Genesi Efika (MPC5200B)
problem: unable to use sound subsystem instead it works fine with linux-2.6.36.4 (+ device tree supplement, attached) .

With linux-2.6.38.8 and linux-2.6.39.4 it doesn't build.
That's from my build log:

[...]
  LD      sound/soc/blackfin/built-in.o
  LD      sound/soc/codecs/built-in.o
  CC [M]  sound/soc/codecs/stac9766.o
  LD [M]  sound/soc/codecs/snd-soc-stac9766.o
  LD      sound/soc/davinci/built-in.o
  LD      sound/soc/ep93xx/built-in.o
  LD      sound/soc/fsl/built-in.o
  CC [M]  sound/soc/fsl/mpc5200_dma.o
sound/soc/fsl/mpc5200_dma.c:372:16: warning: 'struct of_device' declared inside parameter list
sound/soc/fsl/mpc5200_dma.c:372:16: warning: its scope is only this definition or declaration, which is probably not what you want
sound/soc/fsl/mpc5200_dma.c: In function 'mpc5200_hpcd_probe':
sound/soc/fsl/mpc5200_dma.c:383:31: error: dereferencing pointer to incomplete type
sound/soc/fsl/mpc5200_dma.c:384:31: error: dereferencing pointer to incomplete type
sound/soc/fsl/mpc5200_dma.c:385:14: error: dereferencing pointer to incomplete type
sound/soc/fsl/mpc5200_dma.c:390:14: error: dereferencing pointer to incomplete type
sound/soc/fsl/mpc5200_dma.c:402:27: error: dereferencing pointer to incomplete type
sound/soc/fsl/mpc5200_dma.c:414:20: error: dereferencing pointer to incomplete type
sound/soc/fsl/mpc5200_dma.c:428:14: error: dereferencing pointer to incomplete type
sound/soc/fsl/mpc5200_dma.c:475:21: error: dereferencing pointer to incomplete type
sound/soc/fsl/mpc5200_dma.c:478:38: error: dereferencing pointer to incomplete type
sound/soc/fsl/mpc5200_dma.c: At top level:
sound/soc/fsl/mpc5200_dma.c:490:39: warning: 'struct of_device' declared inside parameter list
sound/soc/fsl/mpc5200_dma.c: In function 'mpc5200_hpcd_remove':
sound/soc/fsl/mpc5200_dma.c:492:47: error: dereferencing pointer to incomplete type
sound/soc/fsl/mpc5200_dma.c:494:2: error: dereferencing pointer to incomplete type
sound/soc/fsl/mpc5200_dma.c:496:33: error: dereferencing pointer to incomplete type
sound/soc/fsl/mpc5200_dma.c:508:21: error: dereferencing pointer to incomplete type
sound/soc/fsl/mpc5200_dma.c: At top level:
sound/soc/fsl/mpc5200_dma.c:522:2: error: unknown field 'owner' specified in initializer
sound/soc/fsl/mpc5200_dma.c:522:2: warning: initialization from incompatible pointer type
sound/soc/fsl/mpc5200_dma.c:523:2: error: unknown field 'name' specified in initializer
sound/soc/fsl/mpc5200_dma.c:523:2: warning: initialization from incompatible pointer type
sound/soc/fsl/mpc5200_dma.c:524:2: error: unknown field 'match_table' specified in initializer
sound/soc/fsl/mpc5200_dma.c:524:2: warning: initialization from incompatible pointer type
sound/soc/fsl/mpc5200_dma.c:525:2: warning: initialization from incompatible pointer type
sound/soc/fsl/mpc5200_dma.c:526:2: warning: initialization from incompatible pointer type
make[3]: *** [sound/soc/fsl/mpc5200_dma.o] Error 1
make[2]: *** [sound/soc/fsl] Error 2
make[1]: *** [sound/soc] Error 2
make: *** [sound] Error 2

well, i got the same error with also linux-2.6.37. Btw, this was already reported about a year ago:
http://lists.ozlabs.org/pipermail/linuxppc-dev/2011-February/088415.html


-- 
acrux [off-list ref]

On Thu, Feb 2, 2012 at 10:57 AM, acrux [off-list ref] wrote:

well, i got the same error with also linux-2.6.37. Btw, this was already =

reported about a year ago:

http://lists.ozlabs.org/pipermail/linuxppc-dev/2011-February/088415.html

I think this was fixed already.  You're using an obsolete kernel.

--=20
Timur Tabi
Linux kernel developer at Freescale=

On Thu, 2 Feb 2012 21:50:02 +0000
Tabi Timur-B04825 [off-list ref] wrote:

On Thu, Feb 2, 2012 at 10:57 AM, acrux [off-list ref] wrote:

quoted

well, i got the same error with also linux-2.6.37. Btw, this was already reported about a year ago:
http://lists.ozlabs.org/pipermail/linuxppc-dev/2011-February/088415.html

I think this was fixed already.  You're using an obsolete kernel.

hi Timur,
as i said [1] it seems to be fixed only in 3.x instead the last working one is the obsolete 2.6.36.x .
Anyway, alog the sound/soc/fsl/mpc5200_dma.c now builds the sound is still broken.

best,
--nico



[1]

On Thu, 2 Feb 2012 03:48:03 +0100
acrux [off-list ref] wrote:

__omissis_

With linux-3.0.18, linux-3.1.10 and linux-3.2.2 it builds but doesn't work.
That's from my dmesg:

[...]
asoc: error - multiple DAI f0002200.sound registered with no name
mpc5200-psc-ac97 f0002200.sound: Failed to register DAI
mpc5200-psc-ac97: probe of f0002200.sound failed with error -22

acrux [off-list ref]

On Fri, Feb 3, 2012 at 8:02 PM, acrux [off-list ref] wrote:

as i said [1] it seems to be fixed only in 3.x instead the last working o=

ne is the obsolete 2.6.36.x .

Anyway, alog the sound/soc/fsl/mpc5200_dma.c now builds the sound is stil=

l broken.

Ok, I missed that part in your email.

The Efika sound driver was not being compiled by default for a very
long time, so I think everyone just forgot about it.  I posted a patch
to enable it by default and fix the compilation errors, but I'm pretty
sure that it's succumbed to bit rot.  ALSA has changed, especially
with the introduction of device trees, and so now someone needs to fix
the Efika driver.

--=20
Timur Tabi
Linux kernel developer at Freescale=