diff options
| author | Lokesh Vutla <lokeshvutla@ti.com> | 2013-03-13 06:52:33 +0000 |
|---|---|---|
| committer | Jon Medhurst <tixy@linaro.org> | 2013-07-17 11:12:14 +0100 |
| commit | 8aa6a97721cc5146ee3e70cd477e10c4d0047d0c (patch) | |
| tree | 29c77378ca05720c57f8612ed39fb24a8a3d1e46 | |
| parent | 8bb495e3f02401ee6f76d1b1d77f3ac9f079e376 (diff) | |
ARM: hw_breakpoint: Enable debug powerdown only if system supports 'has_ossr'master-hw-bkpt-fix
Commit {9a6eb31 ARM: hw_breakpoint: Debug powerdown support for self-hosted
debug} introduces debug powerdown support for self-hosted debug.
While merging the patch 'has_ossr' check was removed which
was needed for hardwares which doesn't support self-hosted debug.
Pandaboard (A9) is one such hardware and Dietmar's orginial
patch did mention this issue.
Without that check on Panda with CPUIDLE enabled, a flood of
below messages thrown.
[ 3.597930] hw-breakpoint: CPU 0 failed to disable vector catch
[ 3.597991] hw-breakpoint: CPU 1 failed to disable vector catch
So restore that check back to avoid the mentioned issue.
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Reported-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
| -rw-r--r-- | arch/arm/kernel/hw_breakpoint.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm/kernel/hw_breakpoint.c b/arch/arm/kernel/hw_breakpoint.c index 1fd749ee4a1..1b803117ed9 100644 --- a/arch/arm/kernel/hw_breakpoint.c +++ b/arch/arm/kernel/hw_breakpoint.c @@ -1049,7 +1049,8 @@ static struct notifier_block dbg_cpu_pm_nb = { static void __init pm_init(void) { - cpu_pm_register_notifier(&dbg_cpu_pm_nb); + if (has_ossr) + cpu_pm_register_notifier(&dbg_cpu_pm_nb); } #else static inline void pm_init(void) |