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ARM: delete struct sys_timer

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

3
arch/arm/include/asm/mach/arch.h
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@@ -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
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@@ -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;

9
arch/arm/kernel/time.c
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@@ -30,11 +30,6 @@
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
/*
* Our system timer.
*/
static struct sys_timer *system_timer;
#if defined(CONFIG_RTC_DRV_CMOS) || defined(CONFIG_RTC_DRV_CMOS_MODULE) || \
defined(CONFIG_NVRAM) || defined(CONFIG_NVRAM_MODULE)
/* this needs a better home */
@@ -120,8 +115,6 @@ int __init register_persistent_clock(clock_access_fn read_boot,
void __init time_init(void)
{
system_timer = machine_desc->timer;
system_timer->init();
machine_desc->init_time();
sched_clock_postinit();
}

5
arch/arm/mach-at91/at91rm9200_time.c
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@@ -274,8 +274,3 @@ void __init at91rm9200_timer_init(void)
/* register clocksource */
clocksource_register_hz(&clk32k, AT91_SLOW_CLOCK);
}
struct sys_timer at91rm9200_timer = {
.init = at91rm9200_timer_init,
};

6
arch/arm/mach-at91/at91sam926x_time.c
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@@ -224,7 +224,7 @@ static int __init of_at91sam926x_pit_init(void)
/*
* Set up both clocksource and clockevent support.
*/
static void __init at91sam926x_pit_init(void)
void __init at91sam926x_pit_init(void)
{
unsigned long pit_rate;
unsigned bits;
@@ -279,7 +279,3 @@ void __init at91sam926x_ioremap_pit(u32 addr)
if (!pit_base_addr)
panic("Impossible to ioremap PIT\n");
}
struct sys_timer at91sam926x_timer = {
.init = at91sam926x_pit_init,
};

5
arch/arm/mach-at91/at91x40_time.c
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@@ -82,8 +82,3 @@ void __init at91x40_timer_init(void)
at91_tc_write(AT91_TC_CLK1BASE + AT91_TC_CCR, (AT91_TC_SWTRG | AT91_TC_CLKEN));
}
struct sys_timer at91x40_timer = {
.init = at91x40_timer_init,
};

2
arch/arm/mach-at91/board-1arm.c
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@@ -90,7 +90,7 @@ static void __init onearm_board_init(void)
MACHINE_START(ONEARM, "Ajeco 1ARM single board computer")
/* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
.timer = &at91rm9200_timer,
.init_time = at91rm9200_timer_init,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = onearm_init_early,

2
arch/arm/mach-at91/board-afeb-9260v1.c
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@@ -210,7 +210,7 @@ static void __init afeb9260_board_init(void)
MACHINE_START(AFEB9260, "Custom afeb9260 board")
/* Maintainer: Sergey Lapin <slapin@ossfans.org> */
.timer = &at91sam926x_timer,
.init_time = at91sam926x_pit_init,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = afeb9260_init_early,

2
arch/arm/mach-at91/board-cam60.c
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@@ -187,7 +187,7 @@ static void __init cam60_board_init(void)
MACHINE_START(CAM60, "KwikByte CAM60")
/* Maintainer: KwikByte */
.timer = &at91sam926x_timer,
.init_time = at91sam926x_pit_init,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = cam60_init_early,

2
arch/arm/mach-at91/board-carmeva.c
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@@ -157,7 +157,7 @@ static void __init carmeva_board_init(void)
MACHINE_START(CARMEVA, "Carmeva")
/* Maintainer: Conitec Datasystems */
.timer = &at91rm9200_timer,
.init_time = at91rm9200_timer_init,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = carmeva_init_early,

2
arch/arm/mach-at91/board-cpu9krea.c
View File

@@ -374,7 +374,7 @@ MACHINE_START(CPUAT9260, "Eukrea CPU9260")
MACHINE_START(CPUAT9G20, "Eukrea CPU9G20")
#endif
/* Maintainer: Eric Benard - EUKREA Electromatique */
.timer = &at91sam926x_timer,
.init_time = at91sam926x_pit_init,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = cpu9krea_init_early,

2
arch/arm/mach-at91/board-cpuat91.c
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@@ -178,7 +178,7 @@ static void __init cpuat91_board_init(void)
MACHINE_START(CPUAT91, "Eukrea")
/* Maintainer: Eric Benard - EUKREA Electromatique */
.timer = &at91rm9200_timer,
.init_time = at91rm9200_timer_init,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = cpuat91_init_early,

2
arch/arm/mach-at91/board-csb337.c
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@@ -251,7 +251,7 @@ static void __init csb337_board_init(void)
MACHINE_START(CSB337, "Cogent CSB337")
/* Maintainer: Bill Gatliff */
.timer = &at91rm9200_timer,
.init_time = at91rm9200_timer_init,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = csb337_init_early,

2
arch/arm/mach-at91/board-csb637.c
View File

@@ -132,7 +132,7 @@ static void __init csb637_board_init(void)
MACHINE_START(CSB637, "Cogent CSB637")
/* Maintainer: Bill Gatliff */
.timer = &at91rm9200_timer,
.init_time = at91rm9200_timer_init,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = csb637_init_early,

2
arch/arm/mach-at91/board-dt.c
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@@ -49,7 +49,7 @@ static const char *at91_dt_board_compat[] __initdata = {
DT_MACHINE_START(at91sam_dt, "Atmel AT91SAM (Device Tree)")
/* Maintainer: Atmel */
.timer = &at91sam926x_timer,
.init_time = at91sam926x_pit_init,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = at91_dt_initialize,

2
arch/arm/mach-at91/board-eb01.c
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@@ -44,7 +44,7 @@ static void __init at91eb01_init_early(void)
MACHINE_START(AT91EB01, "Atmel AT91 EB01")
/* Maintainer: Greg Ungerer <gerg@snapgear.com> */
.timer = &at91x40_timer,
.init_time = at91x40_timer_init,
.handle_irq = at91_aic_handle_irq,
.init_early = at91eb01_init_early,
.init_irq = at91eb01_init_irq,

2
arch/arm/mach-at91/board-eb9200.c
View File

@@ -116,7 +116,7 @@ static void __init eb9200_board_init(void)
}
MACHINE_START(ATEB9200, "Embest ATEB9200")
.timer = &at91rm9200_timer,
.init_time = at91rm9200_timer_init,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = eb9200_init_early,

2
arch/arm/mach-at91/board-ecbat91.c
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@@ -181,7 +181,7 @@ static void __init ecb_at91board_init(void)
MACHINE_START(ECBAT91, "emQbit's ECB_AT91")
/* Maintainer: emQbit.com */
.timer = &at91rm9200_timer,
.init_time = at91rm9200_timer_init,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = ecb_at91init_early,

2
arch/arm/mach-at91/board-eco920.c
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@@ -149,7 +149,7 @@ static void __init eco920_board_init(void)
MACHINE_START(ECO920, "eco920")
/* Maintainer: Sascha Hauer */
.timer = &at91rm9200_timer,
.init_time = at91rm9200_timer_init,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = eco920_init_early,

2
arch/arm/mach-at91/board-flexibity.c
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@@ -159,7 +159,7 @@ static void __init flexibity_board_init(void)
MACHINE_START(FLEXIBITY, "Flexibity Connect")
/* Maintainer: Maxim Osipov */
.timer = &at91sam926x_timer,
.init_time = at91sam926x_pit_init,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = flexibity_init_early,

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