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authorRavi Chandra Sadineni <ravisadineni@chromium.org>2018-05-30 21:22:04 +0200
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2018-05-31 01:42:12 +0200
commit38ba34a43dbc00c87d13d1c4b6d0719a2ac87b2e (patch)
tree5279be593f866181bfa759a135963d180cbfc6f8 /drivers/input
parentInput: mk712 - update documentation web link (diff)
downloadlinux-38ba34a43dbc00c87d13d1c4b6d0719a2ac87b2e.tar.xz
linux-38ba34a43dbc00c87d13d1c4b6d0719a2ac87b2e.zip
Input: cros_ec_keyb - mark cros_ec_keyb driver as wake enabled device.
Mark cros_ec_keyb has wake enabled by default. If we see a MKBP event related to keyboard, call pm_wakeup_event() to make sure wakeup triggers are accounted to keyb during suspend resume path. Signed-off-by: Ravi Chandra Sadineni <ravisadineni@chromium.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input')
-rw-r--r--drivers/input/keyboard/cros_ec_keyb.c33
1 files changed, 21 insertions, 12 deletions
diff --git a/drivers/input/keyboard/cros_ec_keyb.c b/drivers/input/keyboard/cros_ec_keyb.c
index 79eb29550c34..489ddd37bd4e 100644
--- a/drivers/input/keyboard/cros_ec_keyb.c
+++ b/drivers/input/keyboard/cros_ec_keyb.c
@@ -244,24 +244,35 @@ static int cros_ec_keyb_work(struct notifier_block *nb,
switch (ckdev->ec->event_data.event_type) {
case EC_MKBP_EVENT_KEY_MATRIX:
- /*
- * If EC is not the wake source, discard key state changes
- * during suspend.
- */
- if (queued_during_suspend)
- return NOTIFY_OK;
+ if (device_may_wakeup(ckdev->dev)) {
+ pm_wakeup_event(ckdev->dev, 0);
+ } else {
+ /*
+ * If keyboard is not wake enabled, discard key state
+ * changes during suspend. Switches will be re-checked
+ * in cros_ec_keyb_resume() to be sure nothing is lost.
+ */
+ if (queued_during_suspend)
+ return NOTIFY_OK;
+ }
if (ckdev->ec->event_size != ckdev->cols) {
dev_err(ckdev->dev,
"Discarded incomplete key matrix event.\n");
return NOTIFY_OK;
}
+
cros_ec_keyb_process(ckdev,
ckdev->ec->event_data.data.key_matrix,
ckdev->ec->event_size);
break;
case EC_MKBP_EVENT_SYSRQ:
+ if (device_may_wakeup(ckdev->dev))
+ pm_wakeup_event(ckdev->dev, 0);
+ else if (queued_during_suspend)
+ return NOTIFY_OK;
+
val = get_unaligned_le32(&ckdev->ec->event_data.data.sysrq);
dev_dbg(ckdev->dev, "sysrq code from EC: %#x\n", val);
handle_sysrq(val);
@@ -269,12 +280,9 @@ static int cros_ec_keyb_work(struct notifier_block *nb,
case EC_MKBP_EVENT_BUTTON:
case EC_MKBP_EVENT_SWITCH:
- /*
- * If EC is not the wake source, discard key state
- * changes during suspend. Switches will be re-checked in
- * cros_ec_keyb_resume() to be sure nothing is lost.
- */
- if (queued_during_suspend)
+ if (device_may_wakeup(ckdev->dev))
+ pm_wakeup_event(ckdev->dev, 0);
+ else if (queued_during_suspend)
return NOTIFY_OK;
if (ckdev->ec->event_data.event_type == EC_MKBP_EVENT_BUTTON) {
@@ -639,6 +647,7 @@ static int cros_ec_keyb_probe(struct platform_device *pdev)
return err;
}
+ device_init_wakeup(ckdev->dev, true);
return 0;
}