Hello.
On 03/04/2017 23:53, Fabio Estevam wrote:
Hi Caleb,
On Mon, Apr 3, 2017 at 5:32 PM, Caleb Crome <caleb@xxxxxxxxx> wrote:
This patch definitely breaks the i.mx6 channel alignment. In fact it
breaks it so that the channels are never aligned properly.
My test setup is as follows:
* Get vanilla kernel, tag v4.11-rc5
I'm also testing on a imx6sl board on v4.11-rc5 vanilla.
The Patch break something. I'm not even able to to make two consecutives
'aplay' in order to generate something correct on the external SSI bus.
- boot
- aplay -D hw:1,0 -r 48000 -c 2 -f S16_LE /dev/urandom
Playing raw data '/dev/urandom' : Signed 16 bit Little Endian, Rate
48000 Hz, Stereo
^CAborted by signal Interrupt...
=> ok
- aplay -D hw:1,0 -r 48000 -c 2 -f S16_LE /dev/urandom
Playing raw data '/dev/urandom' : Signed 16 bit Little Endian, Rate
48000 Hz, Stereo
aplay: pcm_write:1702: write error: Input/output error
=> no clock on external bus.
I confirm it works correctly without the patch.
On my board, the SSI device hw:1,0 is master of the bus (clock and sync)
and is working in DSP mode.
I will continue the tests tomorrow.
Arnaud
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