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authorLinus Torvalds <torvalds@linux-foundation.org>2019-01-06 22:40:06 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2019-01-06 22:40:06 +0300
commit12133258d7fe309b42a35677549c606b15a0822d (patch)
tree1551465e4fd9b3409083c3e452405ba59da38f45 /include
parent66e012f6188fb37b18c774277f34fb52278059c3 (diff)
parentcdd6a4a0e2ec590c30ad0e965fa08bf37461cadb (diff)
downloadlinux-12133258d7fe309b42a35677549c606b15a0822d.tar.xz
Merge tag 'tag-chrome-platform-for-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/bleung/chrome-platform
Pull chrome platform updates from Benson Leung: - Changes for EC_MKBP_EVENT_SENSOR_FIFO handling. - Also, maintainership changes. Olofj out, Enric balletbo in. * tag 'tag-chrome-platform-for-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/bleung/chrome-platform: MAINTAINERS: add maintainers for ChromeOS EC sub-drivers MAINTAINERS: platform/chrome: Add Enric as a maintainer MAINTAINERS: platform/chrome: remove myself as maintainer platform/chrome: don't report EC_MKBP_EVENT_SENSOR_FIFO as wakeup platform/chrome: straighten out cros_ec_get_{next,host}_event() error codes
Diffstat (limited to 'include')
-rw-r--r--include/linux/mfd/cros_ec.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/include/linux/mfd/cros_ec.h b/include/linux/mfd/cros_ec.h
index e44e3ec8a9c7..de8b588c8776 100644
--- a/include/linux/mfd/cros_ec.h
+++ b/include/linux/mfd/cros_ec.h
@@ -317,7 +317,9 @@ int cros_ec_query_all(struct cros_ec_device *ec_dev);
* @wake_event: Pointer to a bool set to true upon return if the event might be
* treated as a wake event. Ignored if null.
*
- * Return: 0 on success or negative error code.
+ * Return: negative error code on errors; 0 for no data; or else number of
+ * bytes received (i.e., an event was retrieved successfully). Event types are
+ * written out to @ec_dev->event_data.event_type on success.
*/
int cros_ec_get_next_event(struct cros_ec_device *ec_dev, bool *wake_event);
@@ -329,7 +331,7 @@ int cros_ec_get_next_event(struct cros_ec_device *ec_dev, bool *wake_event);
* events raised and call the functions in the ec notifier. This function
* is a helper to know which events are raised.
*
- * Return: 0 on success or negative error code.
+ * Return: 0 on error or non-zero bitmask of one or more EC_HOST_EVENT_*.
*/
u32 cros_ec_get_host_event(struct cros_ec_device *ec_dev);