The power metter was not showing up due to a check over I915_PERF_ENERGY.
ENOENT is returned when I915_PERF_ENERGY is not available, and we use
that for relaying on debugfs i915_energy_uJ.
Signed-off-by: Marius Vlad <marius.c.vlad@xxxxxxxxx>
---
overlay/power.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/overlay/power.c b/overlay/power.c
index 6c5c374..6873e7f 100644
--- a/overlay/power.c
+++ b/overlay/power.c
@@ -60,7 +60,7 @@ int power_init(struct power *power)
memset(power, 0, sizeof(*power));
power->fd = perf_open();
- if (power->fd != -1)
+ if (power->fd != -ENOENT)
return 0;
sprintf(buf, "%s/i915_energy_uJ", debugfs_dri_path);
@@ -121,7 +121,7 @@ int power_update(struct power *power)
if (power->error)
return power->error;
- if (power->fd != -1) {
+ if (power->fd != -ENOENT) {
uint64_t data[2];
int len;
--
2.6.2
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