On 28.01.2015 15:00, Lars-Peter Clausen wrote:

On 01/28/2015 02:47 PM, Pascal Huerst wrote:

...

Hello Lars-Peter,

i followed the instructions on:

http://wiki.analog.com/resources/tools-software/linux-software/sigmadsp_genf...

and built the firmware from my xml-file. But when the driver loads, I always get:

adau1701 2-0034: Failed to load firmware: Invalid version 2. Supported firmware versions: 1 adau1701 2-0034: Failed to load firmware adau1701 2-0034: ASoC: can't set adau1701 hw params: -22

I have been using that .xml/.bin file in 3.14.13 for some time, but now in 3.18.3 I always get the version mismatch from above.

Hi,

Are you sure that the you were previously using a v2 firmware file? v2 was not supported until recently and loading it with the v1 loader would just result in garbage being written to the device.

I have been using the firmware file for more than a year without any problems on 3.14.23, so I assume it is v1. I don't know why the driver tells me it's v2, however. Maybe my tree is messed up.

If I port adau1701.{c,h} and sigmadsp.{c,h} from 3.14.23 to 3.18.3, it works. I think I have to look deeper into that...

The patch[1] that adds support for v2 is pretty standalone and you should be able to backport it to v3.18.

If I cherry-pick that in, the message is gone, but still, I don't have no output.

[1] http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/sound/...