OMAP2+: disable idle early in the suspend sequence

Browse source

Some bad interaction between the idle and the suspend paths has been
identified: the idle code is called during the suspend enter and exit
sequences. This could cause corruption or lock-up of resources.

The solution is to move the calls to disable_hlt at the very beginning
of the suspend sequence (ex. in omap3_pm_begin instead of
omap3_pm_prepare), and the call to enable_hlt at the very end of
the suspend sequence (ex. in omap3_pm_end instead of omap3_pm_finish).

Tested with RET and OFF on Beagle and OMAP3EVM.

Signed-off-by: Jean Pihet <j-pihet@ti.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

...

This commit is contained in:

Jean Pihet 2010-12-09 18:39:58 +01:00 • committed by Kevin Hilman

parent 90a8a73c06

commit c166381d40

3 changed files with 6 additions and 41 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

16

arch/arm/mach-omap2/pm24xx.c

View file

15

arch/arm/mach-omap2/pm34xx.c

View file

16

arch/arm/mach-omap2/pm44xx.c

View file