RE: [PATCH 1/8] clocksource: Convert tcb_clksrc to useclocksource_register_hz/khz

From: Voss, Nikolaus
Date: Mon Oct 31 2011 - 12:23:55 EST


> -----Original Message-----
> From: y@xxxxxxxxxxxxxxxxxxxxxxxx [mailto:y@xxxxxxxxxxxxxxxxxxxxxxxx]
> Sent: Tuesday, October 25, 2011 8:08 PM
> To: lkml
> Cc: John Stultz; Voss, Nikolaus; Thomas Gleixner
> Subject: [PATCH 1/8] clocksource: Convert tcb_clksrc to use
> clocksource_register_hz/khz
>
> From: John Stultz <john.stultz@xxxxxxxxxx>
>
> Convert tcb_clksrc to use clocksource_register_hz.
>
> Untested. Help from maintainers would be appreciated.
>
> CC: Nikolaus Voss <n.voss@xxxxxxxxxxx>
> CC: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> Signed-off-by: John Stultz <john.stultz@xxxxxxxxxx>
> ---
> drivers/clocksource/tcb_clksrc.c | 4 +---
> 1 files changed, 1 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/clocksource/tcb_clksrc.c
> b/drivers/clocksource/tcb_clksrc.c
> index 79c47e8..55d0f95 100644
> --- a/drivers/clocksource/tcb_clksrc.c
> +++ b/drivers/clocksource/tcb_clksrc.c
> @@ -59,7 +59,6 @@ static struct clocksource clksrc = {
> .rating = 200,
> .read = tc_get_cycles,
> .mask = CLOCKSOURCE_MASK(32),
> - .shift = 18,
> .flags = CLOCK_SOURCE_IS_CONTINUOUS,
> };
>
> @@ -256,7 +255,6 @@ static int __init tcb_clksrc_init(void)
> best_divisor_idx = i;
> }
>
> - clksrc.mult = clocksource_hz2mult(divided_rate, clksrc.shift);
>
> printk(bootinfo, clksrc.name, CONFIG_ATMEL_TCB_CLKSRC_BLOCK,
> divided_rate / 1000000,
> @@ -292,7 +290,7 @@ static int __init tcb_clksrc_init(void)
> __raw_writel(ATMEL_TC_SYNC, tcaddr + ATMEL_TC_BCR);
>
> /* and away we go! */
> - clocksource_register(&clksrc);
> + clocksource_register_hz(&clksrc, divided_rate);
>
> /* channel 2: periodic and oneshot timer support */
> setup_clkevents(tc, clk32k_divisor_idx);
> --
> 1.7.3.2.146.gca209

This works on my G45 system.

Acked-by: Nikolaus Voss <n.voss@xxxxxxxxxxx>

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