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ARM: smp_twd: remove old local timer interface

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Now that all users of the previous local timer interface
have been converted to the runtime registration API, make
this interface the only one supported for this driver.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
This commit is contained in:
Marc Zyngier 2012-01-10 23:00:54 +00:00
parent 58458e0327
commit 9248510469
3 changed files with 5 additions and 43 deletions
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8
arch/arm/include/asm/localtimer.h
View File

@ -11,7 +11,6 @@
#define __ASM_ARM_LOCALTIMER_H
#include <linux/errno.h>
#include <linux/interrupt.h>
struct clock_event_device;
@ -26,13 +25,6 @@ struct local_timer_ops {
void percpu_timer_setup(void);
#ifdef CONFIG_LOCAL_TIMERS
#ifdef CONFIG_HAVE_ARM_TWD
#include "smp_twd.h"
#endif
/*
* Stop the local timer
*/

6
arch/arm/include/asm/smp_twd.h
View File

@ -20,12 +20,6 @@
#include <linux/ioport.h>
struct clock_event_device;
extern void __iomem *twd_base;
int twd_timer_setup(struct clock_event_device *);
struct twd_local_timer {
struct resource res[2];
};

34
arch/arm/kernel/smp_twd.c
View File

@ -18,7 +18,7 @@
#include <linux/smp.h>
#include <linux/jiffies.h>
#include <linux/clockchips.h>
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/of_irq.h>
#include <linux/of_address.h>
@ -28,7 +28,7 @@
#include <asm/hardware/gic.h>
/* set up by the platform code */
void __iomem *twd_base;
static void __iomem *twd_base;
static struct clk *twd_clk;
static unsigned long twd_timer_rate;
@ -80,7 +80,7 @@ static int twd_set_next_event(unsigned long evt,
* If a local timer interrupt has occurred, acknowledge and return 1.
* Otherwise, return 0.
*/
int twd_timer_ack(void)
static int twd_timer_ack(void)
{
if (__raw_readl(twd_base + TWD_TIMER_INTSTAT)) {
__raw_writel(1, twd_base + TWD_TIMER_INTSTAT);
@ -96,11 +96,6 @@ static void twd_timer_stop(struct clock_event_device *clk)
disable_percpu_irq(clk->irq);
}
/* Temporary hack to be removed when all TWD users are converted to
the new registration interface */
void local_timer_stop(struct clock_event_device *clk)
__attribute__ ((alias ("twd_timer_stop")));
#ifdef CONFIG_CPU_FREQ
/*
@ -230,28 +225,10 @@ static struct clk *twd_get_clock(void)
/*
* Setup the local clock events for a CPU.
*/
int __cpuinit twd_timer_setup(struct clock_event_device *clk)
static int __cpuinit twd_timer_setup(struct clock_event_device *clk)
{
struct clock_event_device **this_cpu_clk;
if (!twd_evt) {
int err;
twd_evt = alloc_percpu(struct clock_event_device *);
if (!twd_evt) {
pr_err("twd: can't allocate memory\n");
return -ENOMEM;
}
err = request_percpu_irq(clk->irq, twd_handler,
"twd", twd_evt);
if (err) {
pr_err("twd: can't register interrupt %d (%d)\n",
clk->irq, err);
return err;
}
}
if (!twd_clk)
twd_clk = twd_get_clock();
@ -268,8 +245,7 @@ int __cpuinit twd_timer_setup(struct clock_event_device *clk)
clk->rating = 350;
clk->set_mode = twd_set_mode;
clk->set_next_event = twd_set_next_event;
if (!clk->irq)
clk->irq = twd_ppi;
clk->irq = twd_ppi;
this_cpu_clk = __this_cpu_ptr(twd_evt);
*this_cpu_clk = clk;