linux-kernel - Re: [PATCH v4] clocksource: arm_global

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Message-ID: <567406A2.1050906@ti.com>
Date:	Fri, 18 Dec 2015 15:14:10 +0200
From:	Grygorii Strashko <grygorii.strashko@...com>
To:	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Srinivas Kandagatla <srinivas.kandagatla@...il.com>,
	Maxime Coquelin <maxime.coquelin@...com>
CC:	Russell King <linux@....linux.org.uk>,
	<linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>, <kernel@...inux.com>,
	<linux-omap@...r.kernel.org>,
	Santosh Shilimkar <ssantosh@...nel.org>,
	Arnd Bergmann <arnd@...db.de>,
	John Stultz <john.stultz@...aro.org>,
	Felipe Balbi <balbi@...com>, Tony Lindgren <tony@...mide.com>,
	Marc Zyngier <marc.zyngier@....com>
Subject: Re: [PATCH v4] clocksource: arm_global_timer: fix suspend resume

Hi All,
On 11/30/2015 08:25 PM, Grygorii Strashko wrote:
> Now the System stall is observed on TI AM437x based board
> (am437x-gp-evm) during resuming from System suspend when ARM Global
> timer is selected as clocksource device (CPUIdle not enabled) - SysRq are working,
> but nothing else.
> 
> The reason of stall is that ARM Global timer loses its contexts during
> System suspend:
>     GT_CONTROL.TIMER_ENABLE = 0 (unbanked)
>     GT_COUNTERx = 0
> 
> Hence, update ARM Global timer driver to reflect above behaviour
> - re-enable ARM Global timer on resume (GT_CONTROL.TIMER_ENABLE = 1)
>    if not enabled.
> 
> CC: Arnd Bergmann <arnd@...db.de>
> Cc: John Stultz <john.stultz@...aro.org>
> Cc: Felipe Balbi <balbi@...com>
> Cc: Tony Lindgren <tony@...mide.com>
> Cc: Marc Zyngier <marc.zyngier@....com>
> Reviewed-by: Santosh Shilimkar <ssantosh@...nel.org>
> Signed-off-by: Grygorii Strashko <grygorii.strashko@...com>

Are there any comments? Do I need to perform any additional actions to have it merged?



-- 
regards,
-grygorii
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