linux-kernel - [PATCH 4.14 153/183] cpcap-charger: generate events for userspace

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Date:   Fri, 22 Mar 2019 12:16:21 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, stable@...nel.org,
        Pavel Machek <pavel@....cz>, Tony Lindgren <tony@...mide.com>,
        Sebastian Reichel <sebastian.reichel@...labora.com>
Subject: [PATCH 4.14 153/183] cpcap-charger: generate events for userspace

4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Pavel Machek <pavel@....cz>

commit fd10606f93a149a9f3d37574e5385b083b4a7b32 upstream.

The driver doesn't generate uevents on charger connect/disconnect.
This leads to UPower not detecting when AC is on or off... and that is
bad.

Reported by Arthur D. on github (
https://github.com/maemo-leste/bugtracker/issues/206 ), thanks to
Merlijn Wajer for suggesting a fix.

Cc: stable@...nel.org
Signed-off-by: Pavel Machek <pavel@....cz>
Acked-by: Tony Lindgren <tony@...mide.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@...labora.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/power/supply/cpcap-charger.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/power/supply/cpcap-charger.c
+++ b/drivers/power/supply/cpcap-charger.c
@@ -458,6 +458,7 @@ static void cpcap_usb_detect(struct work
 			goto out_err;
 	}
 
+	power_supply_changed(ddata->usb);
 	return;
 
 out_err: