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Subject[PATCH V7 5/7] POWER/cpuidle: Generic POWER CPUIDLE driver supporting PSERIES.
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Date
This patch includes cleanup and refactoring of the
existing code to make the driver POWER generic.
* Re-naming the functions from pseries to generic power.
* Re-naming the backend driver from pseries_idle to
ibm-power-idle.

Signed-off-by: Deepthi Dharwar <deepthi@linux.vnet.ibm.com>
---
drivers/cpuidle/cpuidle-ibm-power.c | 32 ++++++++++++++++----------------
1 file changed, 16 insertions(+), 16 deletions(-)

diff --git a/drivers/cpuidle/cpuidle-ibm-power.c b/drivers/cpuidle/cpuidle-ibm-power.c
index e81c207..5b92242 100644
--- a/drivers/cpuidle/cpuidle-ibm-power.c
+++ b/drivers/cpuidle/cpuidle-ibm-power.c
@@ -20,8 +20,8 @@
#include <asm/runlatch.h>
#include <asm/plpar_wrappers.h>

-struct cpuidle_driver pseries_idle_driver = {
- .name = "pseries_idle",
+struct cpuidle_driver power_idle_driver = {
+ .name = "ibm_power_idle",
.owner = THIS_MODULE,
};

@@ -182,7 +182,7 @@ void update_smt_snooze_delay(int cpu, int residency)
drv->states[1].target_residency = residency;
}

-static int pseries_cpuidle_add_cpu_notifier(struct notifier_block *n,
+static int power_cpuidle_add_cpu_notifier(struct notifier_block *n,
unsigned long action, void *hcpu)
{
int hotcpu = (unsigned long)hcpu;
@@ -213,16 +213,16 @@ static int pseries_cpuidle_add_cpu_notifier(struct notifier_block *n,
}

static struct notifier_block setup_hotplug_notifier = {
- .notifier_call = pseries_cpuidle_add_cpu_notifier,
+ .notifier_call = power_cpuidle_add_cpu_notifier,
};

/*
- * pseries_cpuidle_driver_init()
+ * power_cpuidle_driver_init()
*/
-static int pseries_cpuidle_driver_init(void)
+static int power_cpuidle_driver_init(void)
{
int idle_state;
- struct cpuidle_driver *drv = &pseries_idle_driver;
+ struct cpuidle_driver *drv = &power_idle_driver;

drv->state_count = 0;
for (idle_state = 0; idle_state < max_idle_state; ++idle_state) {
@@ -241,10 +241,10 @@ static int pseries_cpuidle_driver_init(void)
}

/*
- * pseries_idle_probe()
+ * power_idle_probe()
* Choose state table for shared versus dedicated partition
*/
-static int pseries_idle_probe(void)
+static int power_idle_probe(void)
{

if (cpuidle_disable != IDLE_NO_OVERRIDE)
@@ -264,24 +264,24 @@ static int pseries_idle_probe(void)
return 0;
}

-static int __init pseries_processor_idle_init(void)
+static int __init power_processor_idle_init(void)
{
int retval;

- retval = pseries_idle_probe();
+ retval = power_idle_probe();
if (retval)
return retval;

- pseries_cpuidle_driver_init();
- retval = cpuidle_register(&pseries_idle_driver, NULL);
+ power_cpuidle_driver_init();
+ retval = cpuidle_register(&power_idle_driver, NULL);
if (retval) {
- printk(KERN_DEBUG "Registration of pseries driver failed.\n");
+ printk(KERN_DEBUG "Registration of ibm_power_idle driver failed.\n");
return retval;
}

register_cpu_notifier(&setup_hotplug_notifier);
- printk(KERN_DEBUG "pseries_idle_driver registered\n");
+ printk(KERN_DEBUG "ibm_power_idle registered\n");
return 0;
}

-device_initcall(pseries_processor_idle_init);
+device_initcall(power_processor_idle_init);


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