[PATCH] powerpc/pseries/dlpar: use rtas_get_sensor()

[Nathan Lynch]

Instead of making bare calls to get-sensor-state, use
rtas_get_sensor(), which correctly handles busy and extended delay
statuses.

Fixes: ab519a011caa ("powerpc/pseries: Kernel DLPAR Infrastructure")
Signed-off-by: Nathan Lynch <nath...@linux.ibm.com>
---
 arch/powerpc/platforms/pseries/dlpar.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/arch/powerpc/platforms/pseries/dlpar.c 
b/arch/powerpc/platforms/pseries/dlpar.c
index 3ac70790ec7a..b1f01ac0c29e 100644
--- a/arch/powerpc/platforms/pseries/dlpar.c
+++ b/arch/powerpc/platforms/pseries/dlpar.c
@@ -289,8 +289,7 @@ int dlpar_acquire_drc(u32 drc_index)
 {
        int dr_status, rc;
 
-       rc = rtas_call(rtas_token("get-sensor-state"), 2, 2, &dr_status,
-                      DR_ENTITY_SENSE, drc_index);
+       rc = rtas_get_sensor(DR_ENTITY_SENSE, drc_index, &dr_status);
        if (rc || dr_status != DR_ENTITY_UNUSABLE)
                return -1;
 
@@ -311,8 +310,7 @@ int dlpar_release_drc(u32 drc_index)
 {
        int dr_status, rc;
 
-       rc = rtas_call(rtas_token("get-sensor-state"), 2, 2, &dr_status,
-                      DR_ENTITY_SENSE, drc_index);
+       rc = rtas_get_sensor(DR_ENTITY_SENSE, drc_index, &dr_status);
        if (rc || dr_status != DR_ENTITY_PRESENT)
                return -1;
 
@@ -333,8 +331,7 @@ int dlpar_unisolate_drc(u32 drc_index)
 {
        int dr_status, rc;
 
-       rc = rtas_call(rtas_token("get-sensor-state"), 2, 2, &dr_status,
-                               DR_ENTITY_SENSE, drc_index);
+       rc = rtas_get_sensor(DR_ENTITY_SENSE, drc_index, &dr_status);
        if (rc || dr_status != DR_ENTITY_PRESENT)
                return -1;
 
-- 
2.30.2