Re: [PATCH] OMAP: clockdomain: Wait for powerdomain to be ON when using clockdomain force wakeup

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On Wednesday 17 August 2011 07:17 AM, Paul Walmsley wrote:

Hi everyone

I've updated this patch per my earlier comments and also to apply.
Please let me know if you have any issues with it ASAP.


- Paul

From: Santosh Shilimkar<santosh.shilimkar@xxxxxx>
Date: Sat, 13 Aug 2011 08:56:28 +0530
Subject: [PATCH] [PATCH] OMAP: clockdomain: Wait for powerdomain to be ON
  when using clockdomain force wakeup

While using clockdomain force wakeup method, not waiting for powerdomain
to be effectively ON may end up locking the clockdomain FSM until a
next wakeup event occurs.

One such issue was seen on OMAP4430, where L4_PER was periodically
getting stuck in in-transition state when transitioning from from OSWR to ON.

This issue was reported and investigated by Patrick Titiano<p-titiano@xxxxxx>

Signed-off-by: Santosh Shilimkar<santosh.shilimkar@xxxxxx>
Signed-off-by: Rajendra Nayak<rnayak@xxxxxx>
Reported-by: Patrick Titiano<p-titiano@xxxxxx>
Cc: Kevin Hilman<khilman@xxxxxx>
Cc: Benoit Cousson<b-cousson@xxxxxx>
Cc: Paul Walmsley<paul@xxxxxxxxx>
[paul@xxxxxxxxx: updated to apply; added transition wait on clkdm_deny_idle();
  remove two superfluous pwrdm_wait_transition() calls]
Signed-off-by: Paul Walmsley<paul@xxxxxxxxx>
---
Thanks Paul. Patch looks good to me.

Regards
Santosh
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