diff options
Diffstat (limited to 'kernel/arch/powerpc/kernel/rtas.c')
| -rw-r--r-- | kernel/arch/powerpc/kernel/rtas.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/kernel/arch/powerpc/kernel/rtas.c b/kernel/arch/powerpc/kernel/rtas.c index 7a488c108..caffb10e7 100644 --- a/kernel/arch/powerpc/kernel/rtas.c +++ b/kernel/arch/powerpc/kernel/rtas.c @@ -584,6 +584,23 @@ int rtas_get_sensor(int sensor, int index, int *state) } EXPORT_SYMBOL(rtas_get_sensor); +int rtas_get_sensor_fast(int sensor, int index, int *state) +{ + int token = rtas_token("get-sensor-state"); + int rc; + + if (token == RTAS_UNKNOWN_SERVICE) + return -ENOENT; + + rc = rtas_call(token, 2, 2, state, sensor, index); + WARN_ON(rc == RTAS_BUSY || (rc >= RTAS_EXTENDED_DELAY_MIN && + rc <= RTAS_EXTENDED_DELAY_MAX)); + + if (rc < 0) + return rtas_error_rc(rc); + return rc; +} + bool rtas_indicator_present(int token, int *maxindex) { int proplen, count, i; |