linux-kernel - Re: [PATCH v4 07/17] clocksource: bcm2835: Switch to sched_clock

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Date:	Tue, 30 Jul 2013 12:04:59 +0200
From:	Daniel Lezcano <daniel.lezcano@...aro.org>
To:	Stephen Boyd <sboyd@...eaurora.org>
CC:	John Stultz <john.stultz@...aro.org>, linux-kernel@...r.kernel.org,
	linux-arm-msm@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	Thomas Gleixner <tglx@...utronix.de>,
	Russell King <linux@....linux.org.uk>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	Christopher Covington <cov@...eaurora.org>,
	Stephen Warren <swarren@...dotorg.org>
Subject: Re: [PATCH v4 07/17] clocksource: bcm2835: Switch to sched_clock_register()

On 07/19/2013 01:21 AM, Stephen Boyd wrote:
> The 32 bit sched_clock interface now supports 64 bits. Upgrade to
> the 64 bit function to allow us to remove the 32 bit registration
> interface.
> 
> Cc: Stephen Warren <swarren@...dotorg.org>
> Signed-off-by: Stephen Boyd <sboyd@...eaurora.org>
> ---

Hi Stephen,

you sent a series with tick and clocksource changes.

John is recipient of part of them. I replaced him to maintain the
clocksource drivers.

Is the series you sent for clocksource drivers supposed to be taken by
me or by Russell ?

In the future if there are no dependencies, it would be preferable to
group the clocksource drivers changes into a series and send them to me.

Thanks
  -- Daniel

>  drivers/clocksource/bcm2835_timer.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/clocksource/bcm2835_timer.c b/drivers/clocksource/bcm2835_timer.c
> index 07ea7ce..26ed331 100644
> --- a/drivers/clocksource/bcm2835_timer.c
> +++ b/drivers/clocksource/bcm2835_timer.c
> @@ -49,7 +49,7 @@ struct bcm2835_timer {
>  
>  static void __iomem *system_clock __read_mostly;
>  
> -static u32 notrace bcm2835_sched_read(void)
> +static u64 notrace bcm2835_sched_read(void)
>  {
>  	return readl_relaxed(system_clock);
>  }
> @@ -110,7 +110,7 @@ static void __init bcm2835_timer_init(struct device_node *node)
>  		panic("Can't read clock-frequency");
>  
>  	system_clock = base + REG_COUNTER_LO;
> -	setup_sched_clock(bcm2835_sched_read, 32, freq);
> +	sched_clock_register(bcm2835_sched_read, 32, freq);
>  
>  	clocksource_mmio_init(base + REG_COUNTER_LO, node->name,
>  		freq, 300, 32, clocksource_mmio_readl_up);
> 


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