OPAL returns OPAL_WRONG_STATE upon failing to provide
sensor data due to core sleeping/offline. Added check
for OPAL_WRONG_STATE rerurn code with sensor read failure.
Also added a log message indicating sensor data being
queried for sleeping/offline core.
Signed-off-by: Vipin K Parashar <vi...@linux.vnet.ibm.com>
---
Changes in v3:
- Added a new case for OPAL_WRONG_STATE in sensor read
along with a log message indicating sleeping/offline core
causing read fail.
arch/powerpc/platforms/powernv/opal-sensor.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/powerpc/platforms/powernv/opal-sensor.c
b/arch/powerpc/platforms/powernv/opal-sensor.c
index 308efd1..fb6d6bb 100644
--- a/arch/powerpc/platforms/powernv/opal-sensor.c
+++ b/arch/powerpc/platforms/powernv/opal-sensor.c
@@ -64,6 +64,12 @@ int opal_get_sensor_data(u32 sensor_hndl, u32 *sensor_data)
*sensor_data = be32_to_cpu(data);
break;
+ case OPAL_WRONG_STATE:
+ pr_notice("%s: Sensor data read failure due to "
+ "core sleeping/offline\n", __func__);
+ ret = -EIO;
+ break;
+
default:
ret = opal_error_code(ret);
break;
--
2.7.4
