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authorUlf Hansson <ulf.hansson@linaro.org>2013-12-09 10:38:20 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2013-12-09 20:25:19 +0000
commit26825cfd90f94f47068519901b3670ae7da320fe (patch)
treeb01332dabbfdf52f8d70d8f4baf803960e2f7068
parentdc1ccc48159d63eca5089e507c82c7d22ef60839 (diff)
ARM: 7914/1: amba: Drop legacy PM support and use the pm_generic functions
All AMBA drivers have converted to use the modern PM ops thus we can safely drop the legacy PM support from the bus. While using the modern PM ops it also makes sense to convert to use the pm_generic callback functions. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
-rw-r--r--drivers/amba/bus.c180
1 files changed, 7 insertions, 173 deletions
diff --git a/drivers/amba/bus.c b/drivers/amba/bus.c
index c4876ac9151a..b90dc1ec109d 100644
--- a/drivers/amba/bus.c
+++ b/drivers/amba/bus.c
@@ -83,162 +83,6 @@ static struct device_attribute amba_dev_attrs[] = {
__ATTR_NULL,
};
-#ifdef CONFIG_PM_SLEEP
-
-static int amba_legacy_suspend(struct device *dev, pm_message_t mesg)
-{
- struct amba_driver *adrv = to_amba_driver(dev->driver);
- struct amba_device *adev = to_amba_device(dev);
- int ret = 0;
-
- if (dev->driver && adrv->suspend)
- ret = adrv->suspend(adev, mesg);
-
- return ret;
-}
-
-static int amba_legacy_resume(struct device *dev)
-{
- struct amba_driver *adrv = to_amba_driver(dev->driver);
- struct amba_device *adev = to_amba_device(dev);
- int ret = 0;
-
- if (dev->driver && adrv->resume)
- ret = adrv->resume(adev);
-
- return ret;
-}
-
-#endif /* CONFIG_PM_SLEEP */
-
-#ifdef CONFIG_SUSPEND
-
-static int amba_pm_suspend(struct device *dev)
-{
- struct device_driver *drv = dev->driver;
- int ret = 0;
-
- if (!drv)
- return 0;
-
- if (drv->pm) {
- if (drv->pm->suspend)
- ret = drv->pm->suspend(dev);
- } else {
- ret = amba_legacy_suspend(dev, PMSG_SUSPEND);
- }
-
- return ret;
-}
-
-static int amba_pm_resume(struct device *dev)
-{
- struct device_driver *drv = dev->driver;
- int ret = 0;
-
- if (!drv)
- return 0;
-
- if (drv->pm) {
- if (drv->pm->resume)
- ret = drv->pm->resume(dev);
- } else {
- ret = amba_legacy_resume(dev);
- }
-
- return ret;
-}
-
-#else /* !CONFIG_SUSPEND */
-
-#define amba_pm_suspend NULL
-#define amba_pm_resume NULL
-
-#endif /* !CONFIG_SUSPEND */
-
-#ifdef CONFIG_HIBERNATE_CALLBACKS
-
-static int amba_pm_freeze(struct device *dev)
-{
- struct device_driver *drv = dev->driver;
- int ret = 0;
-
- if (!drv)
- return 0;
-
- if (drv->pm) {
- if (drv->pm->freeze)
- ret = drv->pm->freeze(dev);
- } else {
- ret = amba_legacy_suspend(dev, PMSG_FREEZE);
- }
-
- return ret;
-}
-
-static int amba_pm_thaw(struct device *dev)
-{
- struct device_driver *drv = dev->driver;
- int ret = 0;
-
- if (!drv)
- return 0;
-
- if (drv->pm) {
- if (drv->pm->thaw)
- ret = drv->pm->thaw(dev);
- } else {
- ret = amba_legacy_resume(dev);
- }
-
- return ret;
-}
-
-static int amba_pm_poweroff(struct device *dev)
-{
- struct device_driver *drv = dev->driver;
- int ret = 0;
-
- if (!drv)
- return 0;
-
- if (drv->pm) {
- if (drv->pm->poweroff)
- ret = drv->pm->poweroff(dev);
- } else {
- ret = amba_legacy_suspend(dev, PMSG_HIBERNATE);
- }
-
- return ret;
-}
-
-static int amba_pm_restore(struct device *dev)
-{
- struct device_driver *drv = dev->driver;
- int ret = 0;
-
- if (!drv)
- return 0;
-
- if (drv->pm) {
- if (drv->pm->restore)
- ret = drv->pm->restore(dev);
- } else {
- ret = amba_legacy_resume(dev);
- }
-
- return ret;
-}
-
-#else /* !CONFIG_HIBERNATE_CALLBACKS */
-
-#define amba_pm_freeze NULL
-#define amba_pm_thaw NULL
-#define amba_pm_poweroff NULL
-#define amba_pm_restore NULL
-
-#endif /* !CONFIG_HIBERNATE_CALLBACKS */
-
#ifdef CONFIG_PM_RUNTIME
/*
* Hooks to provide runtime PM of the pclk (bus clock). It is safe to
@@ -272,15 +116,13 @@ static int amba_pm_runtime_resume(struct device *dev)
}
#endif
-#ifdef CONFIG_PM
-
static const struct dev_pm_ops amba_pm = {
- .suspend = amba_pm_suspend,
- .resume = amba_pm_resume,
- .freeze = amba_pm_freeze,
- .thaw = amba_pm_thaw,
- .poweroff = amba_pm_poweroff,
- .restore = amba_pm_restore,
+ .suspend = pm_generic_suspend,
+ .resume = pm_generic_resume,
+ .freeze = pm_generic_freeze,
+ .thaw = pm_generic_thaw,
+ .poweroff = pm_generic_poweroff,
+ .restore = pm_generic_restore,
SET_RUNTIME_PM_OPS(
amba_pm_runtime_suspend,
amba_pm_runtime_resume,
@@ -288,14 +130,6 @@ static const struct dev_pm_ops amba_pm = {
)
};
-#define AMBA_PM (&amba_pm)
-
-#else /* !CONFIG_PM */
-
-#define AMBA_PM NULL
-
-#endif /* !CONFIG_PM */
-
/*
* Primecells are part of the Advanced Microcontroller Bus Architecture,
* so we call the bus "amba".
@@ -305,7 +139,7 @@ struct bus_type amba_bustype = {
.dev_attrs = amba_dev_attrs,
.match = amba_match,
.uevent = amba_uevent,
- .pm = AMBA_PM,
+ .pm = &amba_pm,
};
static int __init amba_init(void)