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authorPeter De Schrijver <pdeschrijver@nvidia.com>2012-04-27 16:52:16 +0300
committerSimone Willett <swillett@nvidia.com>2012-05-01 14:26:31 -0700
commiteaf88fe052ecfd48912946c7cf6497f697b816d6 (patch)
tree9716b9bb7b1fb7eb30eb9f02b472bbfdb418a3bc
parent06b7198b27ce0b427472484a388607ca62fa0be1 (diff)
ARM: tegra: add powergating trace event
Add a trace event for powergating. The existing power_domain_target is used. state 0 is used for off and state 1 is used for on. This patch only traces non CPU domains. The powerstate of CPU domains is already traced using power_start events. bug 976845 Change-Id: Ic9503f7b42b35c0bf70c7b64a7f15c4960637200 Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com> Reviewed-on: http://git-master/r/99416 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Antti Miettinen <amiettinen@nvidia.com> Reviewed-by: Matthew Longnecker <mlongnecker@nvidia.com> Reviewed-by: Diwakar Tundlam <dtundlam@nvidia.com>
-rw-r--r--arch/arm/mach-tegra/powergate.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/powergate.c b/arch/arm/mach-tegra/powergate.c
index 76d264fcad0e..27bc3fc67e48 100644
--- a/arch/arm/mach-tegra/powergate.c
+++ b/arch/arm/mach-tegra/powergate.c
@@ -27,6 +27,7 @@
#include <linux/io.h>
#include <linux/seq_file.h>
#include <linux/spinlock.h>
+#include <trace/events/power.h>
#include <mach/clk.h>
#include <mach/iomap.h>
@@ -460,6 +461,9 @@ static int tegra_powergate_set(int id, bool new_state)
return -EBUSY;
}
+ trace_power_domain_target(powergate_partition_info[id].name, new_state,
+ smp_processor_id());
+
return 0;
}