linux-kernel - Re: [PATCH] Documentation: devicetree: mct: Fix counter bit of CPU local timers

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Message-id: <000101cf1749$30ae3b50$920ab1f0$%han@samsung.com>
Date:	Wed, 22 Jan 2014 17:08:53 +0900
From:	Jingoo Han <jg1.han@...sung.com>
To:	'Daniel Lezcano' <daniel.lezcano@...aro.org>
Cc:	'Thomas Gleixner' <tglx@...utronix.de>,
	'Kukjin Kim' <kgene.kim@...sung.com>,
	linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
	linux-samsung-soc@...r.kernel.org,
	'Thomas Abraham' <thomas.abraham@...aro.org>,
	'Tomasz Figa' <t.figa@...sung.com>,
	'Jingoo Han' <jg1.han@...sung.com>
Subject: Re: [PATCH] Documentation: devicetree: mct: Fix counter bit of CPU
 local timers

On Tuesday, January 21, 2014 6:03 PM, Jingoo Han wrote:
> 
> According to the datasheet of Exynos SoCs, the counter bit
> of CPU local timers is 31-bit, not 32-bit; thus, it should
> be fixed.

Please, ignore this patch.
There is a 31-bit counter in CPU local timers; however,
FRC (free running down-counters) of CPU local timers is
32-bit. Thus, there is no need to fix it.
Thank you.

Best regards,
Jingoo Han

> 
> Signed-off-by: Jingoo Han <jg1.han@...sung.com>
> ---
>  Documentation/devicetree/bindings/timer/samsung,exynos4210-mct.txt |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/timer/samsung,exynos4210-mct.txt
> b/Documentation/devicetree/bindings/timer/samsung,exynos4210-mct.txt
> index 167d5da..8c77791 100644
> --- a/Documentation/devicetree/bindings/timer/samsung,exynos4210-mct.txt
> +++ b/Documentation/devicetree/bindings/timer/samsung,exynos4210-mct.txt
> @@ -3,7 +3,7 @@ Samsung's Multi Core Timer (MCT)
>  The Samsung's Multi Core Timer (MCT) module includes two main blocks, the
>  global timer and CPU local timers. The global timer is a 64-bit free running
>  up-counter and can generate 4 interrupts when the counter reaches one of the
> -four preset counter values. The CPU local timers are 32-bit free running
> +four preset counter values. The CPU local timers are 31-bit free running
>  down-counters and generate an interrupt when the counter expires. There is
>  one CPU local timer instantiated in MCT for every CPU in the system.
> 
> --
> 1.7.10.4


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