1 files changed, 13 insertions, 4 deletions

diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 5c8aa9cf62d7..df38e81cc672 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -48,6 +48,8 @@
 #define _COMPONENT              ACPI_PROCESSOR_COMPONENT
 ACPI_MODULE_NAME("processor_idle");
 
+#define ACPI_IDLE_STATE_START   (IS_ENABLED(CONFIG_ARCH_HAS_CPU_RELAX) ? 1 : 0)
+
 static unsigned int max_cstate __read_mostly = ACPI_PROCESSOR_MAX_POWER;
 module_param(max_cstate, uint, 0000);
 static unsigned int nocst __read_mostly;
@@ -761,7 +763,7 @@ static int acpi_idle_enter(struct cpuidle_device *dev,
 
         if (cx->type != ACPI_STATE_C1) {
                 if (acpi_idle_fallback_to_c1(pr) && num_online_cpus() > 1) {
-                        index = CPUIDLE_DRIVER_STATE_START;
+                        index = ACPI_IDLE_STATE_START;
                         cx = per_cpu(acpi_cstate[index], dev->cpu);
                 } else if (cx->type == ACPI_STATE_C3 && pr->flags.bm_check) {
                         if (cx->bm_sts_skip || !acpi_idle_bm_check()) {
@@ -813,7 +815,7 @@ static void acpi_idle_enter_freeze(struct cpuidle_device *dev,
 static int acpi_processor_setup_cpuidle_cx(struct acpi_processor *pr,
                                            struct cpuidle_device *dev)
 {
-        int i, count = CPUIDLE_DRIVER_STATE_START;
+        int i, count = ACPI_IDLE_STATE_START;
         struct acpi_processor_cx *cx;
 
         if (max_cstate == 0)
@@ -840,7 +842,7 @@ static int acpi_processor_setup_cpuidle_cx(struct acpi_processor *pr,
 
 static int acpi_processor_setup_cstates(struct acpi_processor *pr)
 {
-        int i, count = CPUIDLE_DRIVER_STATE_START;
+        int i, count;
         struct acpi_processor_cx *cx;
         struct cpuidle_state *state;
         struct cpuidle_driver *drv = &acpi_idle_driver;
@@ -848,6 +850,13 @@ static int acpi_processor_setup_cstates(struct acpi_processor *pr)
         if (max_cstate == 0)
                 max_cstate = 1;
 
+        if (IS_ENABLED(CONFIG_ARCH_HAS_CPU_RELAX)) {
+                cpuidle_poll_state_init(drv);
+                count = 1;
+        } else {
+                count = 0;
+        }
+
         for (i = 1; i < ACPI_PROCESSOR_MAX_POWER && i <= max_cstate; i++) {
                 cx = &pr->power.states[i];
 
@@ -1291,7 +1300,7 @@ static int acpi_processor_setup_cpuidle_states(struct acpi_processor *pr)
                 return -EINVAL;
 
         drv->safe_state_index = -1;
-        for (i = CPUIDLE_DRIVER_STATE_START; i < CPUIDLE_STATE_MAX; i++) {
+        for (i = ACPI_IDLE_STATE_START; i < CPUIDLE_STATE_MAX; i++) {
                 drv->states[i].name[0] = '\0';
                 drv->states[i].desc[0] = '\0';
         }