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ARM: delete struct sys_timer

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Now that the only field in struct sys_timer is .init, delete the struct,
and replace the machine descriptor .timer field with the initialization
function itself.

This will enable moving timer drivers into drivers/clocksource without
having to place a public prototype of each struct sys_timer object into
include/linux; the intent is to create a single of_clocksource_init()
function that determines which timer driver to initialize by scanning
the device dtree, much like the proposed irqchip_init() at:
http://www.spinics.net/lists/arm-kernel/msg203686.html

Includes mach-omap2 fixes from Igor Grinberg.

Tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
This commit is contained in:
Stephen Warren
2012-11-08 12:40:59 -07:00
parent 7704c09523
commit 6bb27d7349
495 changed files with 629 additions and 1224 deletions
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3
arch/arm/include/asm/mach/arch.h
View File

@@ -12,7 +12,6 @@
struct tag;
struct meminfo;
struct sys_timer;
struct pt_regs;
struct smp_operations;
#ifdef CONFIG_SMP
@@ -48,7 +47,7 @@ struct machine_desc {
void (*map_io)(void);/* IO mapping function */
void (*init_early)(void);
void (*init_irq)(void);
struct sys_timer *timer; /* system tick timer */
void (*init_time)(void);
void (*init_machine)(void);
void (*init_late)(void);
#ifdef CONFIG_MULTI_IRQ_HANDLER

16
arch/arm/include/asm/mach/time.h
View File

@@ -10,22 +10,6 @@
#ifndef __ASM_ARM_MACH_TIME_H
#define __ASM_ARM_MACH_TIME_H
/*
* This is our kernel timer structure.
*
* - init
* Initialise the kernels jiffy timer source, claim interrupt
* using setup_irq. This is called early on during initialisation
* while interrupts are still disabled on the local CPU.
* - offset
* Return the timer offset in microseconds since the last timer
* interrupt. Note: this must take account of any unprocessed
* timer interrupt which may be pending.
*/
struct sys_timer {
void (*init)(void);
};
extern void timer_tick(void);
struct timespec;