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authorAlexandre Bounine <alexandre.bounine@idt.com>2016-03-23 00:26:05 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-03-23 01:36:02 +0300
commit83dc2cbc1136108068637d5c98636647f7b82461 (patch)
treee22a6e0ca8c16d88804597680443ca88f3747a22
parentdbe74afe6a66d1606f5cb39f2ad05c39497542e6 (diff)
downloadlinux-83dc2cbc1136108068637d5c98636647f7b82461.tar.xz
rapidio: add shutdown notification for RapidIO devices
Add bus-specific callback to stop RapidIO devices during a system shutdown. Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Aurelien Jacquiot <a-jacquiot@ti.com> Cc: Andre van Herk <andre.van.herk@prodrive-technologies.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--drivers/rapidio/rio-driver.c12
-rw-r--r--include/linux/rio.h2
2 files changed, 14 insertions, 0 deletions
diff --git a/drivers/rapidio/rio-driver.c b/drivers/rapidio/rio-driver.c
index f301f059bb85..128350f4d17a 100644
--- a/drivers/rapidio/rio-driver.c
+++ b/drivers/rapidio/rio-driver.c
@@ -131,6 +131,17 @@ static int rio_device_remove(struct device *dev)
return 0;
}
+static void rio_device_shutdown(struct device *dev)
+{
+ struct rio_dev *rdev = to_rio_dev(dev);
+ struct rio_driver *rdrv = rdev->driver;
+
+ dev_dbg(dev, "RIO: %s\n", __func__);
+
+ if (rdrv && rdrv->shutdown)
+ rdrv->shutdown(rdev);
+}
+
/**
* rio_register_driver - register a new RIO driver
* @rdrv: the RIO driver structure to register
@@ -229,6 +240,7 @@ struct bus_type rio_bus_type = {
.bus_groups = rio_bus_groups,
.probe = rio_device_probe,
.remove = rio_device_remove,
+ .shutdown = rio_device_shutdown,
.uevent = rio_uevent,
};
diff --git a/include/linux/rio.h b/include/linux/rio.h
index 8996a629a321..c64a0baf37c8 100644
--- a/include/linux/rio.h
+++ b/include/linux/rio.h
@@ -423,6 +423,7 @@ struct rio_ops {
* @id_table: RIO device ids to be associated with this driver
* @probe: RIO device inserted
* @remove: RIO device removed
+ * @shutdown: shutdown notification callback
* @suspend: RIO device suspended
* @resume: RIO device awakened
* @enable_wake: RIO device enable wake event
@@ -437,6 +438,7 @@ struct rio_driver {
const struct rio_device_id *id_table;
int (*probe) (struct rio_dev * dev, const struct rio_device_id * id);
void (*remove) (struct rio_dev * dev);
+ void (*shutdown)(struct rio_dev *dev);
int (*suspend) (struct rio_dev * dev, u32 state);
int (*resume) (struct rio_dev * dev);
int (*enable_wake) (struct rio_dev * dev, u32 state, int enable);