Re: [PATCH v2 3/3] power: wm831x_power: Support USB charger current limit management

[Baolin Wang]

Hi,

On 3 July 2017 at 16:53, Charles Keepax <ckeepax@xxxxxxxxxxxxxxxxxxxxx> wrote:
> On Mon, Jul 03, 2017 at 02:07:15PM +0800, Baolin Wang wrote:
>> Integrate with the newly added USB charger interface to limit the current
>> we draw from the USB input based on the input device configuration
>> identified by the USB stack, allowing us to charge more quickly from high
>> current inputs without drawing more current than specified from others.
>>
>> Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
>> Signed-off-by: Baolin Wang <baolin.wang@xxxxxxxxxx>
>> ---
> <snip>
>>  /*********************************************************************
>>   *           Battery properties
>>   *********************************************************************/
>> @@ -607,6 +647,22 @@ static int wm831x_power_probe(struct platform_device *pdev)
>>               }
>>       }
>>
>> +     power->usb_phy = devm_usb_get_phy_by_phandle(&pdev->dev,
>> +                                                  "usb-phy", 0);
>> +     if (IS_ERR(power->usb_phy)) {
>> +             ret = PTR_ERR(power->usb_phy);
>> +             dev_err(&pdev->dev, "Failed to find USB phy: %d\n", ret);
>> +             goto err_bat_irq;
>> +     }
>> +
>
> We should probably update the binding documentation for this as
> well: mfd/wm831x.txt

Yes, I will update the binding documentation.

>
> Also I am not sure this needs to be implemented now, but what is
> the plan regarding pdata systems? Generally the driver supports
> both and it would be nice to know there is a way forward for that
> even if we don't implement it yet.

OK, I'll modify this in next version. Thanks.

-- 
Baolin.wang
Best Regards