Re: [PATCH v2] iio: gyro: bmg160: only set power state if PM_RUNTIME is defined

From: Hartmut Knaack
Date: Tue Sep 09 2014 - 18:14:34 EST


Irina Tirdea schrieb, Am 08.09.2014 16:05:
> When CONFIG_PM_RUNTIME is not defined and bmg160 tries to power
> off the device, bmg160_set_power_state will call pm_runtime_put_autosuspend,
> which is not implemented (wil return -ENOSYS).
>
> Only call bmg160_set_power_state when CONFIG_PM_RUNTIME is defined.
>
> Signed-off-by: Irina Tirdea <irina.tirdea@xxxxxxxxx>
Acked-by: Hartmut Knaack <knaack.h@xxxxxx>
> ---
>
> Changes in v2:
> - moved ifdef CONFIG_PM_RUNTIME inside bmg160_set_power_state as
> Hartmut Knaack suggested
>
> drivers/iio/gyro/bmg160.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/iio/gyro/bmg160.c b/drivers/iio/gyro/bmg160.c
> index 7524698..1f967e0d 100644
> --- a/drivers/iio/gyro/bmg160.c
> +++ b/drivers/iio/gyro/bmg160.c
> @@ -237,6 +237,7 @@ static int bmg160_chip_init(struct bmg160_data *data)
>
> static int bmg160_set_power_state(struct bmg160_data *data, bool on)
> {
> +#ifdef CONFIG_PM_RUNTIME
> int ret;
>
> if (on)
> @@ -251,6 +252,7 @@ static int bmg160_set_power_state(struct bmg160_data *data, bool on)
> "Failed: bmg160_set_power_state for %d\n", on);
> return ret;
> }
> +#endif
>
> return 0;
> }
>

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