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authorShawn Nematbakhsh <shawnn@chromium.org>2017-02-14 20:58:02 +0100
committerBenson Leung <bleung@chromium.org>2017-06-27 09:19:15 -0700
commit29d99b966d60029a11d08b9b004cd84b21ce0d67 (patch)
tree96d561541a90fa53de63670cf27eb6c1726b42ba /drivers/mfd/cros_ec.c
parentd4da97e59e1004aa1a15dd75469def20cd84ab99 (diff)
cros_ec: Don't signal wake event for non-wake host events
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>
Diffstat (limited to 'drivers/mfd/cros_ec.c')
-rw-r--r--drivers/mfd/cros_ec.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/mfd/cros_ec.c b/drivers/mfd/cros_ec.c
index d4a407e466b5..fc2569f3e7c9 100644
--- a/drivers/mfd/cros_ec.c
+++ b/drivers/mfd/cros_ec.c
@@ -54,12 +54,19 @@ static const struct mfd_cell ec_pd_cell = {
static irqreturn_t ec_irq_thread(int irq, void *data)
{
struct cros_ec_device *ec_dev = data;
+ bool wake_event = true;
int ret;
- if (device_may_wakeup(ec_dev->dev))
+ ret = cros_ec_get_next_event(ec_dev, &wake_event);
+
+ /*
+ * Signal only if wake host events or any interrupt if
+ * cros_ec_get_next_event() returned an error (default value for
+ * wake_event is true)
+ */
+ if (wake_event && device_may_wakeup(ec_dev->dev))
pm_wakeup_event(ec_dev->dev, 0);
- ret = cros_ec_get_next_event(ec_dev);
if (ret > 0)
blocking_notifier_call_chain(&ec_dev->event_notifier,
0, ec_dev);
@@ -221,7 +228,7 @@ EXPORT_SYMBOL(cros_ec_suspend);
static void cros_ec_drain_events(struct cros_ec_device *ec_dev)
{
- while (cros_ec_get_next_event(ec_dev) > 0)
+ while (cros_ec_get_next_event(ec_dev, NULL) > 0)
blocking_notifier_call_chain(&ec_dev->event_notifier,
1, ec_dev);
}