linux-kernel - [PATCH 04/11] clocksource: sun5i: Remove sched

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Message-Id: <1427746633-9137-4-git-send-email-daniel.lezcano@linaro.org>
Date:	Mon, 30 Mar 2015 22:17:06 +0200
From:	Daniel Lezcano <daniel.lezcano@...aro.org>
To:	tglx@...utronix.de, mingo@...nel.org
Cc:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	maxime.ripard@...e-electrons.com, viresh.kumar@...aro.org,
	ben.dooks@...ethink.co.uk, digetx@...il.com, hdegoede@...hat.com,
	laurent.pinchart+renesas@...asonboard.com
Subject: [PATCH 04/11] clocksource: sun5i: Remove sched_clock

From: Maxime Ripard <maxime.ripard@...e-electrons.com>

It's not possible to remove a sched_clock once it has been added, nor is it
possible to change its rate.

Since we will need to support a rate change, and that we have other
sched_clocks in the system anyway, remove it.

Signed-off-by: Maxime Ripard <maxime.ripard@...e-electrons.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>
---
 drivers/clocksource/timer-sun5i.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/clocksource/timer-sun5i.c b/drivers/clocksource/timer-sun5i.c
index 6b08694..623ff9e 100644
--- a/drivers/clocksource/timer-sun5i.c
+++ b/drivers/clocksource/timer-sun5i.c
@@ -130,11 +130,6 @@ static irqreturn_t sun5i_timer_interrupt(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static u64 sun5i_timer_sched_read(void)
-{
-	return ~readl(timer_base + TIMER_CNTVAL_LO_REG(1));
-}
-
 static void __init sun5i_timer_init(struct device_node *node)
 {
 	struct reset_control *rstc;
@@ -166,7 +161,6 @@ static void __init sun5i_timer_init(struct device_node *node)
 	writel(TIMER_CTL_ENABLE | TIMER_CTL_RELOAD,
 	       timer_base + TIMER_CTL_REG(1));
 
-	sched_clock_register(sun5i_timer_sched_read, 32, rate);
 	clocksource_mmio_init(timer_base + TIMER_CNTVAL_LO_REG(1), node->name,
 			      rate, 340, 32, clocksource_mmio_readl_down);
 
-- 
1.9.1

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