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SubjectRe: [PATCH 2/2] input: gpio-keys: Add runtime support
> > From: Jonas Aaberg <jonas.aberg@stericsson.com>
> Some change logs would have helped.

Granted.

Hopefully Jonas will be happy to step forward and answer any of
your following questions.

> > Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
> > Cc: linux-input@vger.kernel.org
> > Acked-by: Lee Jones <lee.jones@linaro.org>
> > Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com>
> > Signed-off-by: Philippe Langlais <philippe.langlais@linaro.org>
> > Reviewed-by: Bengt Jonsson <bengt.g.jonsson@stericsson.com>
> > ---
> > drivers/input/keyboard/gpio_keys.c | 16 ++++++++++++----
> > 1 file changed, 12 insertions(+), 4 deletions(-)
> >
> > diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c
> > index 7947315..78de557 100644
> > --- a/drivers/input/keyboard/gpio_keys.c
> > +++ b/drivers/input/keyboard/gpio_keys.c
> > @@ -29,6 +29,7 @@
> > #include <linux/of_platform.h>
> > #include <linux/of_gpio.h>
> > #include <linux/spinlock.h>
> > +#include <linux/pm_runtime.h>
> >
> > struct gpio_button_data {
> > const struct gpio_keys_button *button;
> > @@ -526,6 +527,7 @@ static int gpio_keys_open(struct input_dev *input)
> > {
> > struct gpio_keys_drvdata *ddata = input_get_drvdata(input);
> >
> > + pm_runtime_get_sync(input->dev.parent);
> I am not an expert of the runtime.
>
> However would be grateful if you explain me what it actually do.
>
> Also I did not see any runtime suspend/ resume handlers populated.

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Lee Jones
Linaro ST-Ericsson Landing Team Lead
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