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| /linux/arch/powerpc/platforms/powernv/ |
| H A D | opal-sensor.c | diff 6bc08d03e745a0b369bd28294b969e4fdaf7be9f Mon Mar 30 12:06:10 CEST 2015 Cédric Le Goater <clg@fr.ibm.com> powerpc/powernv: handle OPAL_SUCCESS return in opal_sensor_read
Currently, when a sensor value is read, the kernel calls OPAL, which in
turn builds a message for the FSP, and waits for a message back.
The new device tree for OPAL sensors [1] adds new sensors that can be
read synchronously (core temperatures for instance) and that don't need
to wait for a response.
This patch modifies the opal call to accept an OPAL_SUCCESS return value
and cover the case above.
[1] https://lists.ozlabs.org/pipermail/skiboot/2015-March/000639.html
Signed-off-by: Cédric Le Goater <clg@fr.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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