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 <[email protected]> --- 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); 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; + ret = sirf_set_active(data, true); if (!ret) return 0; +err_disable_vcc: if (!data->on_off) regulator_disable(data->vcc); + err_close_serdev: serdev_device_close(data->serdev); return ret; @@ -340,6 +349,12 @@ static int sirf_probe(struct serdev_device *serdev) goto err_put_device; } + data->lna = devm_regulator_get(dev, "lna"); + if (IS_ERR(data->lna)) { + ret = PTR_ERR(data->lna); + goto err_put_device; + } + data->on_off = devm_gpiod_get_optional(dev, "sirf,onoff", GPIOD_OUT_LOW); if (IS_ERR(data->on_off)) -- 2.11.0
