From mboxrd@z Thu Jan 1 00:00:00 1970 From: daniel.lezcano@linaro.org (Daniel Lezcano) Date: Mon, 30 Dec 2013 11:19:29 +0100 Subject: [PATCH 10/20] clocksource: sun4i: Switch to sched_clock_register() In-Reply-To: <1388398779-11222-1-git-send-email-daniel.lezcano@linaro.org> References: <52C1479E.80808@linaro.org> <1388398779-11222-1-git-send-email-daniel.lezcano@linaro.org> Message-ID: <1388398779-11222-10-git-send-email-daniel.lezcano@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Stephen Boyd 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. While we're here, mark the sched_clock function as notrace to prevent ftrace recursion crashes. Cc: Maxime Ripard Acked-by: Maxime Ripard Signed-off-by: Stephen Boyd Signed-off-by: Daniel Lezcano --- drivers/clocksource/sun4i_timer.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/clocksource/sun4i_timer.c b/drivers/clocksource/sun4i_timer.c index d7a1a1a..1911874 100644 --- a/drivers/clocksource/sun4i_timer.c +++ b/drivers/clocksource/sun4i_timer.c @@ -138,7 +138,7 @@ static struct irqaction sun4i_timer_irq = { .dev_id = &sun4i_clockevent, }; -static u32 sun4i_timer_sched_read(void) +static u64 notrace sun4i_timer_sched_read(void) { return ~readl(timer_base + TIMER_CNTVAL_REG(1)); } @@ -170,7 +170,7 @@ static void __init sun4i_timer_init(struct device_node *node) TIMER_CTL_CLK_SRC(TIMER_CTL_CLK_SRC_OSC24M), timer_base + TIMER_CTL_REG(1)); - setup_sched_clock(sun4i_timer_sched_read, 32, rate); + sched_clock_register(sun4i_timer_sched_read, 32, rate); clocksource_mmio_init(timer_base + TIMER_CNTVAL_REG(1), node->name, rate, 350, 32, clocksource_mmio_readl_down); -- 1.7.9.5