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cros_ec: Don't signal wake event for non-wake host events

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The subset of wake-enabled host events is defined by the EC, but the EC
may still send non-wake host events if we're in the process of
suspending. Get the mask of wake-enabled host events from the EC and
filter out non-wake events to prevent spurious aborted suspend
attempts.

Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Benson Leung <bleung@chromium.org>
This commit is contained in:
Shawn Nematbakhsh
2017-02-14 20:58:02 +01:00
committed by Benson Leung
parent d4da97e59e
commit 29d99b966d
4 changed files with 87 additions and 10 deletions
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5
include/linux/mfd/cros_ec.h
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@@ -149,6 +149,7 @@ struct cros_ec_device {
struct ec_response_get_next_event event_data;
int event_size;
u32 host_event_wake_mask;
};
/**
@@ -299,10 +300,12 @@ int cros_ec_query_all(struct cros_ec_device *ec_dev);
* cros_ec_get_next_event - Fetch next event from the ChromeOS EC
*
* @ec_dev: Device to fetch event from
* @wake_event: Pointer to a bool set to true upon return if the event might be
* treated as a wake event. Ignored if null.
*
* Returns: 0 on success, Linux error number on failure
*/
int cros_ec_get_next_event(struct cros_ec_device *ec_dev);
int cros_ec_get_next_event(struct cros_ec_device *ec_dev, bool *wake_event);
/**
* cros_ec_get_host_event - Return a mask of event set by the EC.