Vaibhav Hiremath a7ddda1f5a greybus: arche-platfrom: Get rid of 2sec delay in USB3613 configuration ...

Earlier during boot sequence implementation, we had seen race between
USb3613 and APB boot, and since APB boot time is ~2sec, we delayed
USb3613 configuration for 2sec after APB deassertion of reset.

This obviously won't work in the case of suspend/resume, where we would
like to put APB into OFF state and coldboot in resume.

With the latest FW changes, we do not see any race issue. I have done
regression testing (> 50 iteration of reboot + unipro link up and down)
without any issues.

So lets get rid of the 2sec delay with this patch.

Testing Done: Tested on EVT 1.5 platform.

Signed-off-by: Vaibhav Hiremath <vaibhav.hiremath@linaro.org>
Tested-by: David Lin <dtwlin@google.com>
Reviewed-by: David Lin <dtwlin@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

2016-04-12 22:20:11 -07:00

drivers/staging/greybus

greybus: arche-platfrom: Get rid of 2sec delay in USB3613 configuration

2016-04-12 22:20:11 -07:00

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