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powerpc/powernv: Handle OPAL_WRONG_STATE in opal_get_sensor_data() 

OPAL returns OPAL_WRONG_STATE upon failing to provide sensor data due to
core sleeping/offline. Add a check in opal_get_sensor_data() for sensor
read failure with OPAL_WRONG_STATE return code and return -EIO.

Signed-off-by: Vipin K Parashar <vipin@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
hifive-unleashed-5.1
Vipin K Parashar 2017-03-10 17:27:32 +05:30 committed by Michael Ellerman
parent 4f9b514b76
commit 17bb69515c
1 changed files with 4 additions and 0 deletions
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4
arch/powerpc/platforms/powernv/opal-sensor.c
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@ -64,6 +64,10 @@ int opal_get_sensor_data(u32 sensor_hndl, u32 *sensor_data)
*sensor_data = be32_to_cpu(data);
break;
case OPAL_WRONG_STATE:
ret = -EIO;
break;
default:
ret = opal_error_code(ret);
break;