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authorShuah Khan <shuah.kh@samsung.com>2014-02-10 09:12:27 -0700
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2014-03-07 15:54:48 +1100
commit639291f263c14dd20938dca296ab04b535cafd37 (patch)
treea02f1cc15557ea0b850033e2b26bc9dad5452edf
parent3c8464a9b12bf83807b6e2c896d7e7b633e1cae7 (diff)
downloadlinux-639291f263c14dd20938dca296ab04b535cafd37.tar.bz2
macintosh/adb: Change platform power management to use dev_pm_ops
Change adb platform driver to register pm ops using dev_pm_ops instead of legacy pm_ops. .pm hooks call existing legacy suspend and resume interfaces by passing in the right pm state. Signed-off-by: Shuah Khan <shuah.kh@samsung.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
-rw-r--r--drivers/macintosh/adb.c41
1 files changed, 36 insertions, 5 deletions
diff --git a/drivers/macintosh/adb.c b/drivers/macintosh/adb.c
index 53611de7a457..9e9c56758a08 100644
--- a/drivers/macintosh/adb.c
+++ b/drivers/macintosh/adb.c
@@ -262,7 +262,7 @@ adb_reset_bus(void)
/*
* notify clients before sleep
*/
-static int adb_suspend(struct platform_device *dev, pm_message_t state)
+static int __adb_suspend(struct platform_device *dev, pm_message_t state)
{
adb_got_sleep = 1;
/* We need to get a lock on the probe thread */
@@ -275,10 +275,25 @@ static int adb_suspend(struct platform_device *dev, pm_message_t state)
return 0;
}
+static int adb_suspend(struct device *dev)
+{
+ return __adb_suspend(to_platform_device(dev), PMSG_SUSPEND);
+}
+
+static int adb_freeze(struct device *dev)
+{
+ return __adb_suspend(to_platform_device(dev), PMSG_FREEZE);
+}
+
+static int adb_poweroff(struct device *dev)
+{
+ return __adb_suspend(to_platform_device(dev), PMSG_HIBERNATE);
+}
+
/*
* reset bus after sleep
*/
-static int adb_resume(struct platform_device *dev)
+static int __adb_resume(struct platform_device *dev)
{
adb_got_sleep = 0;
up(&adb_probe_mutex);
@@ -286,6 +301,11 @@ static int adb_resume(struct platform_device *dev)
return 0;
}
+
+static int adb_resume(struct device *dev)
+{
+ return __adb_resume(to_platform_device(dev));
+}
#endif /* CONFIG_PM */
static int __init adb_init(void)
@@ -829,14 +849,25 @@ static const struct file_operations adb_fops = {
.release = adb_release,
};
+#ifdef CONFIG_PM
+static const struct dev_pm_ops adb_dev_pm_ops = {
+ .suspend = adb_suspend,
+ .resume = adb_resume,
+ /* Hibernate hooks */
+ .freeze = adb_freeze,
+ .thaw = adb_resume,
+ .poweroff = adb_poweroff,
+ .restore = adb_resume,
+};
+#endif
+
static struct platform_driver adb_pfdrv = {
.driver = {
.name = "adb",
- },
#ifdef CONFIG_PM
- .suspend = adb_suspend,
- .resume = adb_resume,
+ .pm = &adb_dev_pm_ops,
#endif
+ },
};
static struct platform_device adb_pfdev = {