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SubjectRe: [PATCH v2 3/3] gpio: rcar: Use WAKEUP_PATH driver PM flag
On 2 January 2018 at 14:53, Geert Uytterhoeven <geert@linux-m68k.org> wrote:
> On Tue, Jan 2, 2018 at 1:53 PM, Ulf Hansson <ulf.hansson@linaro.org> wrote:
>> On 2 January 2018 at 11:48, Rafael J. Wysocki <rafael@kernel.org> wrote:
>>> On Tue, Jan 2, 2018 at 11:44 AM, Geert Uytterhoeven
>>> <geert@linux-m68k.org> wrote:
>>>> On Tue, Jan 2, 2018 at 11:32 AM, Rafael J. Wysocki <rafael@kernel.org> wrote:
>>>>> On Fri, Dec 29, 2017 at 2:31 PM, Ulf Hansson <ulf.hansson@linaro.org> wrote:
>>>>>> --- a/drivers/gpio/gpio-rcar.c
>>>>>> +++ b/drivers/gpio/gpio-rcar.c
>>>>
>>>>>> @@ -415,6 +402,18 @@ static int gpio_rcar_parse_dt(struct gpio_rcar_priv *p, unsigned int *npins)
>>>>>> return 0;
>>>>>> }
>>>>>>
>>>>>> +#ifdef CONFIG_PM_SLEEP
>>>>>> +static int gpio_rcar_suspend(struct device *dev)
>>>>>> +{
>>>>>> + struct gpio_rcar_priv *p = dev_get_drvdata(dev);
>>>>>> +
>>>>>> + dev_pm_set_driver_flags(dev, p->wakeup_path ? DPM_FLAG_WAKEUP_PATH : 0);
>>>>>
>>>>> Why don't you simply set dev->power.wakeup_path here?
>>>>
>>>> That's what my v1 did (https://patchwork.kernel.org/patch/10050995/).
>>>
>>> I very much prefer this one. :-)
>>
>> Okay!
>
>>> What's wrong with it?
>>
>> It works, although I would rather change the assignment of the flag to
>> respect if the current value is true, something like this:
>>
>> dev->power.wakeup_path = dev->power.wakeup_path || p->wakeup_path;
>
> dev->power.wakeup_path |= p->wakeup_path?

Yeah, correct.

Br
Uffe

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