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| author | Marc Zyngier <Marc.Zyngier@arm.com> | 2015-09-28 15:49:17 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-10-01 02:18:39 +0200 |
| commit | ae281cbd2689200329afe2474b2f39f3f6eb54b9 (patch) | |
| tree | ccf24acc47e81a4321491089c28b34101ced6dfb | |
| parent | aad83b15aa21f2d9e46b978b27bc63989e61202d (diff) | |
| download | linux-ae281cbd2689200329afe2474b2f39f3f6eb54b9.tar.gz linux-ae281cbd2689200329afe2474b2f39f3f6eb54b9.tar.bz2 linux-ae281cbd2689200329afe2474b2f39f3f6eb54b9.zip | |
clocksource / arm_arch_timer: Convert to ACPI probing
It is now absolutely trivial to convert the arch timer driver to
use ACPI probing, just like its DT counterpart.
Let's enjoy another crapectomy.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| -rw-r--r-- | arch/arm64/kernel/time.c | 6 | ||||
| -rw-r--r-- | drivers/clocksource/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/clocksource/arm_arch_timer.c | 10 | ||||
| -rw-r--r-- | include/linux/clocksource.h | 6 |
4 files changed, 2 insertions, 21 deletions
diff --git a/arch/arm64/kernel/time.c b/arch/arm64/kernel/time.c index 149151fb42bb..819a105d3085 100644 --- a/arch/arm64/kernel/time.c +++ b/arch/arm64/kernel/time.c @@ -71,12 +71,6 @@ void __init time_init(void) tick_setup_hrtimer_broadcast(); - /* - * Since ACPI or FDT will only one be available in the system, - * we can use acpi_generic_timer_init() here safely - */ - acpi_generic_timer_init(); - arch_timer_rate = arch_timer_get_rate(); if (!arch_timer_rate) panic("Unable to initialise architected timer.\n"); diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig index fefedf15be03..1a9c5dc1e5f9 100644 --- a/drivers/clocksource/Kconfig +++ b/drivers/clocksource/Kconfig @@ -131,6 +131,7 @@ config CLKSRC_STM32 config ARM_ARCH_TIMER bool select CLKSRC_OF if OF + select CLKSRC_ACPI if ACPI config ARM_ARCH_TIMER_EVTSTREAM bool "Support for ARM architected timer event stream generation" diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c index d6e3e49399dd..c64d543d64bf 100644 --- a/drivers/clocksource/arm_arch_timer.c +++ b/drivers/clocksource/arm_arch_timer.c @@ -864,13 +864,5 @@ static int __init arch_timer_acpi_init(struct acpi_table_header *table) arch_timer_init(); return 0; } - -/* Initialize all the generic timers presented in GTDT */ -void __init acpi_generic_timer_init(void) -{ - if (acpi_disabled) - return; - - acpi_table_parse(ACPI_SIG_GTDT, arch_timer_acpi_init); -} +CLOCKSOURCE_ACPI_DECLARE(arch_timer, ACPI_SIG_GTDT, arch_timer_acpi_init); #endif diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h index 6eab6abf89b3..116645f746c1 100644 --- a/include/linux/clocksource.h +++ b/include/linux/clocksource.h @@ -252,12 +252,6 @@ extern void clocksource_of_init(void); static inline void clocksource_of_init(void) {} #endif -#ifdef CONFIG_ACPI -void acpi_generic_timer_init(void); -#else -static inline void acpi_generic_timer_init(void) { } -#endif - #define CLOCKSOURCE_ACPI_DECLARE(name, table_id, fn) \ ACPI_DECLARE_PROBE_ENTRY(clksrc, name, table_id, 0, NULL, 0, fn) |