Hi Peter,
On 2016/1/20 15:40, Peter Korsgaard wrote:
"Yang," == Yang, Wenyou <Wenyou.Yang@xxxxxxxxx> writes:
Hi,
But the charger driver can just as well do:
>>
>> dev_get_regmap(dev->parent);
>>
>> instead of:
>>
>> dev_get_drvdata(pdev->dev.parent)->regmap.
> For regulator, it works use the core do dev_get_regmap(dev->parent),
> but for charger, it need to export *act8945a.
Why?
There is a callback (*get_property)(...), who will read the charger
register via regmap,
but it doesn't provide the argument for regmap.
include/linux/power_supply.h
struct power_supply_desc {
[ ... ]
int (*get_property)(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val);
[ ... ]
}
Just like the regulator core does, your battery driver can do:
dev_get_regmap(dev->parent);
Best Regards,
Wenyou Yang
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