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| author |   Thomas Bogendoerfer <tbogendoerfer@suse.de> | 2019-05-13 13:47:25 +0200 |
|---|---|---|
| committer |   Paul Burton <paul.burton@mips.com> | 2019-07-18 14:41:04 -0700 |
| commit | a07e3324538a989b7cdbf2c679be6a7f9df2544f (patch) | |
| tree | 1c8f2be33933e9fb13f64b12697c6404c576def3 /arch/mips/kernel/i8253.c | |
| parent | MIPS: fix some more fall through errors in arch/mips (diff) | |
| download | linux-dev-a07e3324538a989b7cdbf2c679be6a7f9df2544f.tar.xz linux-dev-a07e3324538a989b7cdbf2c679be6a7f9df2544f.zip | |
MIPS: kernel: only use i8253 clocksource with periodic clockevent
i8253 clocksource needs a free running timer. This could only
be used, if i8253 clockevent is set up as periodic.
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Diffstat (limited to 'arch/mips/kernel/i8253.c')
| -rw-r--r-- | arch/mips/kernel/i8253.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/mips/kernel/i8253.c b/arch/mips/kernel/i8253.c index 5f209f111e59..df7ddd246eaa 100644 --- a/arch/mips/kernel/i8253.c +++ b/arch/mips/kernel/i8253.c @@ -32,7 +32,8 @@ void __init setup_pit_timer(void) static int __init init_pit_clocksource(void) { - if (num_possible_cpus() > 1) /* PIT does not scale! */ + if (num_possible_cpus() > 1 || /* PIT does not scale! */ + !clockevent_state_periodic(&i8253_clockevent)) return 0; return clocksource_i8253_init(); |