linux-kernel - Re: [PATCH v2] ARM: OMAP4460: cpuidle: Extend PM_OMAP4_ROM_SMP_BOOT_ERRATUM

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Message-ID: <20131114183535.GL10317@atomide.com>
Date:	Thu, 14 Nov 2013 10:35:36 -0800
From:	Tony Lindgren <tony@...mide.com>
To:	Grygorii Strashko <grygorii.strashko@...com>
Cc:	"linux-omap@...r.kernel.org" <linux-omap@...r.kernel.org>,
	Santosh Shilimkar <santosh.shilimkar@...com>,
	Kevin Hilman <khilman@...aro.org>,
	Taras Kondratiuk <taras.kondratiuk@...aro.org>,
	open list <linux-kernel@...r.kernel.org>,
	linux-arm <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v2] ARM: OMAP4460: cpuidle: Extend
 PM_OMAP4_ROM_SMP_BOOT_ERRATUM_GICD on cpuidle

* Grygorii Strashko <grygorii.strashko@...com> [131022 12:09]:
> The same workaround as ff999b8a0983ee15668394ed49e38d3568fc6859
> "ARM: OMAP4460: Workaround for ROM bug because of CA9 r2pX GIC ..."
> need to be applied not only when system is booting, but when MPUSS hits
> OSWR state through CPUIdle too. Without this WA the same issue is
> reproduced now on boards PandaES and Tablet/Blaze with SOM OMAP4460
> when CONFIG_CPU_IDLE is enabled.
> After MPUSS has enterred OSWR and waken up:
> - GIC distributor became disabled forever
> - scheduling is not performed any more
> 
> Cc: Kevin Hilman <khilman@...aro.org>
> Acked-by: Santosh Shilimkar <santosh.shilimkar@...com>
> Reported-by: Taras Kondratiuk <taras.kondratiuk@...aro.org>
> Signed-off-by: Grygorii Strashko <grygorii.strashko@...com>

Applying into omap-for-v3.13/fixes thanks.

Tony
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