On Sun, Nov 18, 2018 at 10:58:00PM +0100, Andreas Kemnade wrote:
> Devices might have a separate lna between antenna output of the gps
> chip and the antenna which might have a separate supply
>
> Signed-off-by: Andreas Kemnade <andr...@kemnade.info>
> ---
> drivers/gnss/sirf.c | 15 +++++++++++++++
> 1 file changed, 15 insertions(+)
>
> diff --git a/drivers/gnss/sirf.c b/drivers/gnss/sirf.c
> index 6a0e5c0a2d62..f7573ca2dacd 100644
> --- a/drivers/gnss/sirf.c
> +++ b/drivers/gnss/sirf.c
> @@ -30,6 +30,7 @@ struct sirf_data {
> struct serdev_device *serdev;
> speed_t speed;
> struct regulator *vcc;
> + struct regulator *lna;
> struct gpio_desc *on_off;
> struct gpio_desc *wakeup;
> int irq;
> @@ -217,6 +218,7 @@ static int sirf_runtime_suspend(struct device *dev)
>
> if (!data->on_off)
> return regulator_disable(data->vcc);
> + regulator_disable(data->lna);
I don't think you want to disable it until the device has entered
hibernate mode.
> ret = sirf_set_active(data, false);
>
> if (ret)
> @@ -245,13 +247,20 @@ static int sirf_runtime_resume(struct device *dev)
> if (ret)
> goto err_close_serdev;
> }
> +
> + ret = regulator_enable(data->lna);
> + if (ret)
> + goto err_disable_vcc;
This one needs to be managed as vcc in the case where we have no
onoff-signal connected, right? Similar for suspend of course.
> +
> ret = sirf_set_active(data, true);
>
> if (!ret)
> return 0;
>
> +err_disable_vcc:
> if (!data->on_off)
> regulator_disable(data->vcc);
> +
Superfluous newline.
> err_close_serdev:
> serdev_device_close(data->serdev);
> return ret;
Johan
