From: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Date: Mon, 27 Mar 2017 14:59:33 +0000 (+0200)
Subject: HID: logitech-hidpp: notify battery on connect
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9b9c519f1fe3ec9d2518a99c71c54f5c25eef345;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

HID: logitech-hidpp: notify battery on connect

When a device reconnects, there is a high chance its power supply has
been changed (for a battery replacement for instance). Just forward
the battery state here.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---

diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c
index 22129ddac3ae..0781d2bb00d6 100644
--- a/drivers/hid/hid-logitech-hidpp.c
+++ b/drivers/hid/hid-logitech-hidpp.c
@@ -2463,6 +2463,13 @@ static void hidpp_connect_event(struct hidpp_device *hidpp)
 
 	hidpp_initialize_battery(hidpp);
 
+	/* forward current battery state */
+	if (hidpp->capabilities & HIDPP_CAPABILITY_HIDPP20_BATTERY) {
+		hidpp20_query_battery_info(hidpp);
+		if (hidpp->battery.ps)
+			power_supply_changed(hidpp->battery.ps);
+	}
+
 	if (!(hidpp->quirks & HIDPP_QUIRK_NO_HIDINPUT) || hidpp->delayed_input)
 		/* if the input nodes are already created, we can stop now */
 		return;