[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Message-ID: <CAK9=C2W3_LNjQkW0G5TypNW_=3sGOV8NMuYEwnq5Yj=RmgkE3A@mail.gmail.com>
Date: Wed, 15 Nov 2023 21:54:09 +0530
From: Anup Patel <apatel@...tanamicro.com>
To: Joshua Yeong <joshua.yeong@...rfivetech.com>
Cc: daniel.lezcano@...aro.org, tglx@...utronix.de,
paul.walmsley@...ive.com, palmer@...belt.com,
aou@...s.berkeley.edu, leyfoon.tan@...rfivetech.com,
linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org
Subject: Re: [PATCH 1/1] clocksource/timer-risc: Add riscv_clock_shutdown callback
On Wed, Nov 15, 2023 at 1:22 PM Joshua Yeong
<joshua.yeong@...rfivetech.com> wrote:
>
> Hi Anup,
>
> On 15-Nov-23 3:00 PM, Anup Patel wrote:
> > On Wed, Nov 15, 2023 at 11:49 AM Joshua Yeong
> > <joshua.yeong@...rfivetech.com> wrote:
> >> Add clocksource detach/shutdown callback to disable RISC-V timer interrupt when
> >> switching out riscv timer as clock source
> >>
> >> Signed-off-by: Joshua Yeong <joshua.yeong@...rfivetech.com>
> >> ---
> >> drivers/clocksource/timer-riscv.c | 7 +++++++
> >> 1 file changed, 7 insertions(+)
> >>
> >> diff --git a/drivers/clocksource/timer-riscv.c b/drivers/clocksource/timer-riscv.c
> >> index da3071b387eb..588a05459b6a 100644
> >> --- a/drivers/clocksource/timer-riscv.c
> >> +++ b/drivers/clocksource/timer-riscv.c
> >> @@ -50,12 +50,19 @@ static int riscv_clock_next_event(unsigned long delta,
> >> return 0;
> >> }
> >>
> >> +static int riscv_clock_shutdown(struct clock_event_device *evt)
> >> +{
> >> + sbi_set_timer(-1);
> > Use riscv_clock_event_stop() here.
> You mean replacing riscv_clock_shutdown as riscv_clock_event_stop?
I meant replacing sbi_set_timer() with riscv_clock_event_stop().
> >
> >> + return 0;
> >> +}
> >> +
> >> static unsigned int riscv_clock_event_irq;
> >> static DEFINE_PER_CPU(struct clock_event_device, riscv_clock_event) = {
> >> .name = "riscv_timer_clockevent",
> >> .features = CLOCK_EVT_FEAT_ONESHOT,
> >> .rating = 100,
> >> .set_next_event = riscv_clock_next_event,
> >> + .set_state_shutdown = riscv_clock_shutdown,
> >> };
> >>
> >> /*
> >> --
> >> 2.25.1
> >>
> > Regards,
> > Anup
Regards,
Anup
Powered by blists - more mailing lists