linux-kernel - [PATCH V6 5/7] POWER/cpuidle: Generic POWER CPUIDLE driver supporting PSERIES.

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Message-ID: <20130827183137.18579.74586.stgit@deepthi.in.ibm.com>
Date:	Wed, 28 Aug 2013 00:01:39 +0530
From:	Deepthi Dharwar <deepthi@...ux.vnet.ibm.com>
To:	linux-pm@...ts.linux-foundation.org, linuxppc-dev@...ts.ozlabs.org,
	linux-kernel@...r.kernel.org
Cc:	b.zolnierkie@...sung.com, benh@...nel.crashing.org,
	daniel.lezcano@...aro.org, dongsheng.wang@...escale.com,
	michael@...erman.id.au, scottwood@...escale.com,
	srivatsa.bhat@...ux.vnet.ibm.com, preeti@...ux.vnet.ibm.com,
	svaidy@...ux.vnet.ibm.com
Subject: [PATCH V6 5/7] POWER/cpuidle: Generic POWER CPUIDLE driver
 supporting PSERIES.

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@...ux.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 14ebdb4..162deda 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,
 };
 
@@ -178,7 +178,7 @@ 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;
@@ -209,16 +209,16 @@ 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) {
@@ -237,10 +237,10 @@ 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)
@@ -260,24 +260,24 @@ 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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