Hi Liam and Sebastian,

> Am 29.08.2017 um 22:20 schrieb Liam Breck <l...@networkimprov.net>:
> 
> Hi Nikolaus, thanks for the patch...
> 
> On Tue, Aug 29, 2017 at 1:10 PM, H. Nikolaus Schaller <h...@goldelico.com> 
> wrote:
>> Tested on Pyra prototype with bq27421.
>> 
>> Signed-off-by: H. Nikolaus Schaller <h...@goldelico.com>
>> ---
>> drivers/power/supply/bq27xxx_battery.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>> 
>> diff --git a/drivers/power/supply/bq27xxx_battery.c 
>> b/drivers/power/supply/bq27xxx_battery.c
>> index b6c3120ca5ad..e3c878ef7c7e 100644
>> --- a/drivers/power/supply/bq27xxx_battery.c
>> +++ b/drivers/power/supply/bq27xxx_battery.c
>> @@ -688,7 +688,7 @@ static struct bq27xxx_dm_reg bq27545_dm_regs[] = {
>> #define bq27545_dm_regs 0
>> #endif
>> 
>> -#if 0 /* not yet tested */
>> +#if 1 /* tested on Pyra */
>> static struct bq27xxx_dm_reg bq27421_dm_regs[] = {
> 
> I think we can drop the #if and #else...#endif so it's just the
> dm_regs table, as with bq27425.

I have fixed that and did take the chance to update my OpenPandora
kernel so that I also could test and make the bq27500 working.

The biggest hurdle was to find out that I have to change the
compatible string to "ti,bq27500-1" to get non-NULL dm_regs...

[   12.765930] bq27xxx_battery_i2c_probe name=bq27500-1-0
[   12.771392] bq27xxx_battery_i2c_probe call setup
[   12.874816] bq27xxx_battery_setup
[   12.904266] bq27xxx_battery_setup: dm_regs=bf0520e0
[   12.933380] (NULL device *): hwmon: 'bq27500-1-0' is not a valid name 
attribute, please fix
[   13.234893] bq27xxx_battery_settings
[   13.238891] bq27xxx-battery 2-0055: invalid 
battery:energy-full-design-microwatt-hours 14800000
[   13.312469] bq27xxx_battery_set_config
[   13.407745] bq27xxx_battery_unseal
[   13.455993] bq27xxx_battery_update_dm_block
[   13.460418] bq27xxx-battery 2-0055: update terminate-voltage to 3200
[   13.694885] bq27xxx_battery_seal

Does this look ok for

        bat: battery {
                compatible = "simple-battery", "openpandora-battery";
                voltage-min-design-microvolt = <3200000>;
                energy-full-design-microwatt-hours = <14800000>;
                charge-full-design-microamp-hours = <4000000>;
        };

?

I will send a patch for enabling both fuel gauges and the 
omap3-pandora-common.dtsi asap.

BR and thanks,
Nikolaus

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