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authorJosh Zimmerman <joshz@google.com>2017-06-25 14:53:23 -0700
committerJames Morris <james.l.morris@oracle.com>2017-07-07 09:49:24 +1000
commitf77af15165847406b15d8f70c382c4cb15846b2a (patch)
tree4941098b00f641bfe02658b9204f7cd00e05e52b /include/linux/device.h
parentb4b8cbf679c4866a523a35d1454884a31bd5d8dc (diff)
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op-kernel-dev-f77af15165847406b15d8f70c382c4cb15846b2a.tar.gz
Add "shutdown" to "struct class".
The TPM class has some common shutdown code that must be executed for all drivers. This adds some needed functionality for that. Signed-off-by: Josh Zimmerman <joshz@google.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: stable@vger.kernel.org Fixes: 74d6b3ceaa17 ("tpm: fix suspend/resume paths for TPM 2.0") Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Signed-off-by: James Morris <james.l.morris@oracle.com>
Diffstat (limited to 'include/linux/device.h')
-rw-r--r--include/linux/device.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/device.h b/include/linux/device.h
index 6baa123..723cd54 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -375,6 +375,7 @@ int subsys_virtual_register(struct bus_type *subsys,
* @suspend: Used to put the device to sleep mode, usually to a low power
* state.
* @resume: Used to bring the device from the sleep mode.
+ * @shutdown: Called at shut-down time to quiesce the device.
* @ns_type: Callbacks so sysfs can detemine namespaces.
* @namespace: Namespace of the device belongs to this class.
* @pm: The default device power management operations of this class.
@@ -403,6 +404,7 @@ struct class {
int (*suspend)(struct device *dev, pm_message_t state);
int (*resume)(struct device *dev);
+ int (*shutdown)(struct device *dev);
const struct kobj_ns_type_operations *ns_type;
const void *(*namespace)(struct device *dev);
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