linux-kernel - Re: [PATCH 3/7] clocksource: mips-gic: Split clocksource and clockevent initialization

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Message-ID: <CAL1qeaFkzpH+nGqRPOuY-L62jP8NgZWP0WxKTYKXZDpe1sSojg@mail.gmail.com>
Date:	Thu, 21 May 2015 15:24:41 -0700
From:	Andrew Bresticker <abrestic@...omium.org>
To:	Ezequiel Garcia <ezequiel.garcia@...tec.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Linux-MIPS <linux-mips@...ux-mips.org>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	James Hartley <james.hartley@...tec.com>,
	James Hogan <james.hogan@...tec.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Damien Horsley <Damien.Horsley@...tec.com>,
	Govindraj Raja <Govindraj.Raja@...tec.com>
Subject: Re: [PATCH 3/7] clocksource: mips-gic: Split clocksource and
 clockevent initialization

On Thu, May 21, 2015 at 2:37 PM, Ezequiel Garcia
<ezequiel.garcia@...tec.com> wrote:
> This is preparation work for the introduction of clockevent frequency
> update with a clock notifier. This is only possible when the device
> is passed a clk struct, so let's split the legacy and devicetree
> initialization.
>
> Signed-off-by: Ezequiel Garcia <ezequiel.garcia@...tec.com>
> ---
>  drivers/clocksource/mips-gic-timer.c | 13 ++++++++-----
>  1 file changed, 8 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/clocksource/mips-gic-timer.c b/drivers/clocksource/mips-gic-timer.c
> index c4352f0..22a4daf 100644
> --- a/drivers/clocksource/mips-gic-timer.c
> +++ b/drivers/clocksource/mips-gic-timer.c
> @@ -142,11 +142,6 @@ static void __init __gic_clocksource_init(void)
>         ret = clocksource_register_hz(&gic_clocksource, gic_frequency);
>         if (ret < 0)
>                 pr_warn("GIC: Unable to register clocksource\n");
> -
> -       gic_clockevent_init();
> -
> -       /* And finally start the counter */
> -       gic_start_count();
>  }

Instead of duplicating this bit in both the OF and non-OF paths, maybe
it would be better to do the notifier registration in
gic_clockevent_init(), either by passing around the struct clk or
making it a global?
--
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