summaryrefslogtreecommitdiffstats
path: root/drivers/spi
diff options
context:
space:
mode:
authorLars-Peter Clausen <lars@metafoo.de>2015-03-08 14:56:38 +0100
committerMark Brown <broonie@kernel.org>2015-03-08 19:57:55 +0000
commitea022bbb0090975a21c581d8405fbe90043a6eda (patch)
tree18e5ced3efac5a588dced573e12ec4a46e587486 /drivers/spi
parent47875e81476bda8a9bd4875eb281b46e33027d42 (diff)
downloadop-kernel-dev-ea022bbb0090975a21c581d8405fbe90043a6eda.zip
op-kernel-dev-ea022bbb0090975a21c581d8405fbe90043a6eda.tar.gz
spi: Remove support for legacy PM
All SPI drivers have been converted from legacy suspend/resume callbacks to dev_pm_ops. So we can finally remove support for legacy PM from the SPI core. Since there aren't any special bus specific things to do during suspend/resume and since the PM core will automatically fallback directly to using the device's PM ops if no bus PM ops are specified there is no need to have any special SPI bus PM ops. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi')
-rw-r--r--drivers/spi/spi.c114
1 files changed, 0 insertions, 114 deletions
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index c64a3e5..7a2b7a7 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -129,125 +129,11 @@ static int spi_uevent(struct device *dev, struct kobj_uevent_env *env)
return 0;
}
-#ifdef CONFIG_PM_SLEEP
-static int spi_legacy_suspend(struct device *dev, pm_message_t message)
-{
- int value = 0;
- struct spi_driver *drv = to_spi_driver(dev->driver);
-
- /* suspend will stop irqs and dma; no more i/o */
- if (drv) {
- if (drv->suspend)
- value = drv->suspend(to_spi_device(dev), message);
- else
- dev_dbg(dev, "... can't suspend\n");
- }
- return value;
-}
-
-static int spi_legacy_resume(struct device *dev)
-{
- int value = 0;
- struct spi_driver *drv = to_spi_driver(dev->driver);
-
- /* resume may restart the i/o queue */
- if (drv) {
- if (drv->resume)
- value = drv->resume(to_spi_device(dev));
- else
- dev_dbg(dev, "... can't resume\n");
- }
- return value;
-}
-
-static int spi_pm_suspend(struct device *dev)
-{
- const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
-
- if (pm)
- return pm_generic_suspend(dev);
- else
- return spi_legacy_suspend(dev, PMSG_SUSPEND);
-}
-
-static int spi_pm_resume(struct device *dev)
-{
- const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
-
- if (pm)
- return pm_generic_resume(dev);
- else
- return spi_legacy_resume(dev);
-}
-
-static int spi_pm_freeze(struct device *dev)
-{
- const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
-
- if (pm)
- return pm_generic_freeze(dev);
- else
- return spi_legacy_suspend(dev, PMSG_FREEZE);
-}
-
-static int spi_pm_thaw(struct device *dev)
-{
- const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
-
- if (pm)
- return pm_generic_thaw(dev);
- else
- return spi_legacy_resume(dev);
-}
-
-static int spi_pm_poweroff(struct device *dev)
-{
- const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
-
- if (pm)
- return pm_generic_poweroff(dev);
- else
- return spi_legacy_suspend(dev, PMSG_HIBERNATE);
-}
-
-static int spi_pm_restore(struct device *dev)
-{
- const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
-
- if (pm)
- return pm_generic_restore(dev);
- else
- return spi_legacy_resume(dev);
-}
-#else
-#define spi_pm_suspend NULL
-#define spi_pm_resume NULL
-#define spi_pm_freeze NULL
-#define spi_pm_thaw NULL
-#define spi_pm_poweroff NULL
-#define spi_pm_restore NULL
-#endif
-
-static const struct dev_pm_ops spi_pm = {
- .suspend = spi_pm_suspend,
- .resume = spi_pm_resume,
- .freeze = spi_pm_freeze,
- .thaw = spi_pm_thaw,
- .poweroff = spi_pm_poweroff,
- .restore = spi_pm_restore,
- SET_RUNTIME_PM_OPS(
- pm_generic_runtime_suspend,
- pm_generic_runtime_resume,
- NULL
- )
-};
-
struct bus_type spi_bus_type = {
.name = "spi",
.dev_groups = spi_dev_groups,
.match = spi_match_device,
.uevent = spi_uevent,
- .pm = &spi_pm,
};
EXPORT_SYMBOL_GPL(spi_bus_type);
OpenPOWER on IntegriCloud