[Letux-kernel] [PATCH RESEND 1/3 v4] drivers:power:twl4030-charger: don't check if battery is present

H. Nikolaus Schaller hns at goldelico.com
Wed May 3 14:20:29 CEST 2017


> Am 01.05.2017 um 13:26 schrieb Sebastian Reichel <sebastian.reichel at collabora.co.uk>:
> 
> Hi,
> 
> On Fri, Apr 14, 2017 at 09:29:38PM +0200, H. Nikolaus Schaller wrote:
>> We can't assume that the battery is or stays present after probing
>> on devices with replaceable battery.
>> 
>> On some devices (e.g. GTA04 or OpenPanodra) it can be removed
>> and even be hot swapped by the user while device continues to operate
>> through external AC or USB power (as long as system power consumption
>> remains below ca. 500mA as provided by USB). Under certain conditions
>> it is possible to boot without battery.
>> 
>> So it makes no sense to check for this situation during probe and make
>> the charger driver (and its status reports) completely non-operational if
>> the battery can be inserted later.
>> 
>> Tested on: GTA04 and OpenPandora.
>> 
>> Signed-off-by: H. Nikolaus Schaller <hns at goldelico.com>
> 
> Thanks, queued.

TNX,
Nikolaus

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