Commit 92485104 authored by Marc Zyngier's avatar Marc Zyngier
Browse files

ARM: smp_twd: remove old local timer interface 



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: default avatarMarc Zyngier <marc.zyngier@arm.com>
parent 58458e03

arch/arm/include/asm/localtimer.h

+0 −8
Original line number Diff line number Diff line
@@ -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

 */

arch/arm/include/asm/smp_twd.h

+0 −6
Original line number Diff line number Diff line
@@ -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];

};

arch/arm/kernel/smp_twd.c

+5 −29
Original line number Diff line number Diff line
@@ -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();
@@ -268,7 +245,6 @@ 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;



	this_cpu_clk = __this_cpu_ptr(twd_evt);