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Merge tag 'timer' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

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Pull "ARM: timer cleanup work" from Arnd Bergmann:
 "These are split out from the generic soc and driver updates because
  there was a lot of conflicting work by multiple people.  Marc Zyngier
  worked on simplifying the "localtimer" interfaces, and some of the
  platforms are touching the same code as they move to device tree based
  booting.

  Signed-off-by: Arnd Bergmann <arnd@arndb.de>"

* tag 'timer' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (61 commits)
  ARM: tegra: select USB_ULPI if USB is selected
  arm/tegra: pcie: fix return value of function
  ARM: ux500: fix compilation after local timer rework
  ARM: shmobile: remove additional __io() macro use
  ARM: local timers: make the runtime registration interface mandatory
  ARM: local timers: convert MSM to runtime registration interface
  ARM: local timers: convert exynos to runtime registration interface
  ARM: smp_twd: remove old local timer interface
  ARM: imx6q: convert to twd_local_timer_register() interface
  ARM: highbank: convert to twd_local_timer_register() interface
  ARM: ux500: convert to twd_local_timer_register() interface
  ARM: shmobile: convert to twd_local_timer_register() interface
  ARM: tegra: convert to twd_local_timer_register() interface
  ARM: plat-versatile: convert to twd_local_timer_register() interface
  ARM: OMAP4: convert to twd_local_timer_register() interface
  ARM: smp_twd: add device tree support
  ARM: smp_twd: add runtime registration support
  ARM: local timers: introduce a new registration interface
  ARM: smp_twd: make local_timer_stop a symbol instead of a #define
  ARM: mach-shmobile: default to no earlytimer
  ...
This commit is contained in:
Linus Torvalds
2012-03-27 16:06:17 -07:00
parent d61b7a572b 2cbe23e3a4
commit 48d554418d
103 changed files with 966 additions and 1001 deletions
Download Patch File Download Diff File Expand all files Collapse all files
arch/arm/include/asm/hardware/arm_timer.h
+5
View File
@@ -9,7 +9,12 @@
*
* Integrator AP has 16-bit timers, Integrator CP, Versatile and Realview
* can have 16-bit or 32-bit selectable via a bit in the control register.
*
* Every SP804 contains two identical timers.
*/
#define TIMER_1_BASE 0x00
#define TIMER_2_BASE 0x20
#define TIMER_LOAD 0x00 /* ACVR rw */
#define TIMER_VALUE 0x04 /* ACVR ro */
#define TIMER_CTRL 0x08 /* ACVR rw */
arch/arm/include/asm/localtimer.h
+7 -30
View File
@@ -11,47 +11,24 @@
#define __ASM_ARM_LOCALTIMER_H
#include <linux/errno.h>
#include <linux/interrupt.h>
struct clock_event_device;
/*
* Setup a per-cpu timer, whether it be a local timer or dummy broadcast
*/
void percpu_timer_setup(void);
struct local_timer_ops {
int (*setup)(struct clock_event_device *);
void (*stop)(struct clock_event_device *);
};
#ifdef CONFIG_LOCAL_TIMERS
#ifdef CONFIG_HAVE_ARM_TWD
#include "smp_twd.h"
#define local_timer_stop(c) twd_timer_stop((c))
#else
/*
* Stop the local timer
* Register a local timer driver
*/
void local_timer_stop(struct clock_event_device *);
#endif
/*
* Setup a local timer interrupt for a CPU.
*/
int local_timer_setup(struct clock_event_device *);
int local_timer_register(struct local_timer_ops *);
#else
static inline int local_timer_setup(struct clock_event_device *evt)
static inline int local_timer_register(struct local_timer_ops *ops)
{
return -ENXIO;
}
static inline void local_timer_stop(struct clock_event_device *evt)
{
}
#endif
#endif
arch/arm/include/asm/smp_twd.h
+21 -4
View File
@@ -18,11 +18,28 @@
#define TWD_TIMER_CONTROL_PERIODIC (1 << 1)
#define TWD_TIMER_CONTROL_IT_ENABLE (1 << 2)
struct clock_event_device;
#include <linux/ioport.h>
extern void __iomem *twd_base;
struct twd_local_timer {
struct resource res[2];
};
void twd_timer_setup(struct clock_event_device *);
void twd_timer_stop(struct clock_event_device *);
#define DEFINE_TWD_LOCAL_TIMER(name,base,irq) \
struct twd_local_timer name __initdata = { \
.res = { \
DEFINE_RES_MEM(base, 0x10), \
DEFINE_RES_IRQ(irq), \
}, \
};
int twd_local_timer_register(struct twd_local_timer *);
#ifdef CONFIG_HAVE_ARM_TWD
void twd_local_timer_of_register(void);
#else
static inline void twd_local_timer_of_register(void)
{
}
#endif
#endif