Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-12-04 01:51:34 +00:00
Code Issues Packages Projects Releases Wiki Activity
3ae5f06681
linux/drivers/power
History
Tony Lindgren 3ae5f06681 power: supply: cpcap-charger: Fix charge voltage configuration 
We have the charge voltage wrong, it should be 4.35V instead of 4.2V.
This will cause the battery to never get fully charged.

I noticed this when looking at the Andoid kernel battery and charger
status for a fully charged battery:

POWER_SUPPLY_VOLTAGE_NOW=4351000

Also the battery on droid 4 says "4.35, 1735/1785mAh (min/typ),
6.6/6.8 Wh (min/typ)". Presumably the 4.35 on the battery is the
charge voltage.

And finally, on Android the CPCAP CRM register is set to 0x03b5 where
the b is the charge voltage.

Let's fix the charge voltage define and update the charge configuration
to use the 4.35V setting.

Fixes: 0c9888e3c1 ("power: supply: cpcap-charger: Add minimal
CPCAP PMIC battery charger")
Cc: Marcel Partap <mpartap@gmx.net>
Cc: Michael Scott <michael.scott@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-05-04 17:51:44 +02:00
..
avs scripts/spelling.txt: add "intialization" pattern and fix typo instances 2017-02-27 18:43:47 -08:00
reset power: reset: Add a driver for the Gemini poweroff 2017-04-14 01:41:33 +02:00
supply power: supply: cpcap-charger: Fix charge voltage configuration 2017-05-04 17:51:44 +02:00
Kconfig power: move power supply drivers to power/supply 2016-08-11 01:11:03 +02:00
Makefile power: move power supply drivers to power/supply 2016-08-11 01:11:03 +02:00