Patchwork [v8,5/7] POWER/cpuidle: Generic POWERPC-BOOK3S CPUIDLE driver supporting PSERIES.

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Submitter Deepthi Dharwar
Date Nov. 11, 2013, 5:35 a.m.
Message ID <20131111053546.14797.61973.stgit@deepthi.in.ibm.com>
Download mbox | patch
Permalink /patch/290163/
State Changes Requested
Delegated to: Benjamin Herrenschmidt
Headers show

Comments

Deepthi Dharwar - Nov. 11, 2013, 5:35 a.m.
This patch includes cleanup and refactoring of the
existing code to make the driver POWERPC-BOOK3S generic.
* Re-naming the functions from pseries to generic powerpc-book3s.
* Re-naming the backend driver from pseries_idle to
  powerpc_book3s_idle.

Signed-off-by: Deepthi Dharwar <deepthi@linux.vnet.ibm.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 drivers/cpuidle/cpuidle-powerpc-book3s.c |   32 +++++++++++++++---------------
 1 file changed, 16 insertions(+), 16 deletions(-)

Patch

diff --git a/drivers/cpuidle/cpuidle-powerpc-book3s.c b/drivers/cpuidle/cpuidle-powerpc-book3s.c
index fe8ea0c..7b785ff 100644
--- a/drivers/cpuidle/cpuidle-powerpc-book3s.c
+++ b/drivers/cpuidle/cpuidle-powerpc-book3s.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 powerpc_book3s_idle_driver = {
+	.name             = "powerpc_book3s_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 powerpc_book3s_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 = powerpc_book3s_cpuidle_add_cpu_notifier,
 };
 
 /*
- * pseries_cpuidle_driver_init()
+ * powerpc_book3s_cpuidle_driver_init()
  */
-static int pseries_cpuidle_driver_init(void)
+static int powerpc_book3s_cpuidle_driver_init(void)
 {
 	int idle_state;
-	struct cpuidle_driver *drv = &pseries_idle_driver;
+	struct cpuidle_driver *drv = &powerpc_book3s_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()
+ * powerpc_book3s_idle_probe()
  * Choose state table for shared versus dedicated partition
  */
-static int pseries_idle_probe(void)
+static int powerpc_book3s_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 powerpc_book3s_processor_idle_init(void)
 {
 	int retval;
 
-	retval = pseries_idle_probe();
+	retval = powerpc_book3s_idle_probe();
 	if (retval)
 		return retval;
 
-	pseries_cpuidle_driver_init();
-	retval = cpuidle_register(&pseries_idle_driver, NULL);
+	powerpc_book3s_cpuidle_driver_init();
+	retval = cpuidle_register(&powerpc_book3s_idle_driver, NULL);
 	if (retval) {
-		printk(KERN_DEBUG "Registration of pseries driver failed.\n");
+		printk(KERN_DEBUG "Registration of powerpc_book3s_idle driver failed.\n");
 		return retval;
 	}
 
 	register_cpu_notifier(&setup_hotplug_notifier);
-	printk(KERN_DEBUG "pseries_idle_driver registered\n");
+	printk(KERN_DEBUG "powerpc_book3s_idle registered\n");
 	return 0;
 }
 
-device_initcall(pseries_processor_idle_init);
+device_initcall(powerpc_book3s_processor_idle_init);