Messages in this thread Patch in this message | | | From | Lokesh Vutla <> | Subject | [PATCH] ARM: hw_breakpoint: Enable debug powerdown only if system supports 'has_ossr' | Date | Wed, 13 Mar 2013 12:22:33 +0530 |
| |
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> --- arch/arm/kernel/hw_breakpoint.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/arm/kernel/hw_breakpoint.c b/arch/arm/kernel/hw_breakpoint.c index 96093b7..0ba062d 100644 --- a/arch/arm/kernel/hw_breakpoint.c +++ b/arch/arm/kernel/hw_breakpoint.c @@ -1049,7 +1049,8 @@ static struct notifier_block __cpuinitdata 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) -- 1.7.9.5
| |