i2c: omap: wakeup the controller during suspend() callback

A device may need the controller up during suspend_noirq() or
resume_noirq().
But if the controller is autosuspended, there is no way to wakeup it during
suspend_noirq() or resume_noirq() because runtime pm is disabled at this
time.

The suspend() callback wakes up the controller, so it is available until
its suspend_noirq() callback (pm_runtime_force_suspend()).
During the resume, it's restored by resume_noirq() callback
(pm_runtime_force_resume()). Then resume() callback enables autosuspend.

So the controller is up during a little time slot in suspend and resume
sequences even if it's not used.

Reviewed-by: Andi Shyti <[email protected]>
Acked-by: Wolfram Sang <[email protected]>
Reviewed-by: Tony Lindgren <[email protected]>
Signed-off-by: Thomas Richard <[email protected]>
Signed-off-by: Andi Shyti <[email protected]>

0 files changed, 0 insertions, 0 deletions