linux-kernel - [RFC PATCH v3 5/6] input: cros_ec

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Date:   Wed, 21 Jun 2017 18:01:52 +0800
From:   Jeffy Chen <jeffy.chen@...k-chips.com>
To:     linux-kernel@...r.kernel.org
Cc:     briannorris@...omium.org, dmitry.torokhov@...il.com,
        dianders@...omium.org, Jeffy Chen <jeffy.chen@...k-chips.com>,
        Gwendal Grignou <gwendal@...omium.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Arnd Bergmann <arnd@...db.de>,
        Vic Yang <victoryang@...gle.com>, linux-input@...r.kernel.org,
        Enric Balletbo Serra <enric.balletbo@...labora.com>,
        Lee Jones <lee.jones@...aro.org>
Subject: [RFC PATCH v3 5/6] input: cros_ec_keyb: report wakeup events

Report wakeup events when process events.

Signed-off-by: Jeffy Chen <jeffy.chen@...k-chips.com>

---

Changes in v3:
Use wakeup-source property to enable wakeup.
  Suggested by Dmitry Torokhov <dmitry.torokhov@...il.com>.

 drivers/input/keyboard/cros_ec_keyb.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/input/keyboard/cros_ec_keyb.c b/drivers/input/keyboard/cros_ec_keyb.c
index 79eb295..5dc387b 100644
--- a/drivers/input/keyboard/cros_ec_keyb.c
+++ b/drivers/input/keyboard/cros_ec_keyb.c
@@ -293,6 +293,9 @@ static int cros_ec_keyb_work(struct notifier_block *nb,
 		return NOTIFY_DONE;
 	}
 
+	if (device_may_wakeup(ckdev->dev))
+		pm_wakeup_event(ckdev->dev, 0);
+
 	return NOTIFY_OK;
 }
 
@@ -639,6 +642,9 @@ static int cros_ec_keyb_probe(struct platform_device *pdev)
 		return err;
 	}
 
+	if (device_property_read_bool(dev, "wakeup-source"))
+		device_init_wakeup(dev, true);
+
 	return 0;
 }
 
@@ -649,6 +655,8 @@ static int cros_ec_keyb_remove(struct platform_device *pdev)
 	blocking_notifier_chain_unregister(&ckdev->ec->event_notifier,
 					   &ckdev->notifier);
 
+	device_init_wakeup(&pdev->dev, false);
+
 	return 0;
 }
 
-- 
2.1.4