On Friday 07 October 2011 14:12:43 Péter Ujfalusi wrote:
As I said: sdp4430 strated to crash yesterday morning - without any change in the sdp4430 driver.
bisect given me this commit: commit 35c64bcad5c8244d973efbf7e58f6e0e09635504 Author: Mark Brown broonie@opensource.wolfsonmicro.com Date: Wed Sep 28 18:23:53 2011 +0100
ASoC: Ensure all DAPM widgets have a power check callback
Makes the code simpler.
Signed-off-by: Mark Brown broonie@opensource.wolfsonmicro.com
So this means we had this issue masked by the if (!w->power_check). Since machine drivers rarely add mixers/muxes the issue has not been really seen. We tend to add _SPK, _HP, and stuff like that...
But I have checked the commit before this one. While it is not crashing the kernel it does ignores the machine added DAPM widgets. They did not power on (they used to power on). Based on this commit this is expected behavior.
The bisected commit just masked the underlaying issue.
-- Péter