gnss: sirf: add a separate supply for a lna (8fafef42) · Commits · 戴 / test

drivers/gnss/sirf.c

+52 −6

Original line number	Diff line number	Diff line
		@@ -40,6 +40,7 @@ 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;
		@@ -289,21 +290,60 @@ static int sirf_set_active(struct sirf_data *data, bool active)
		static int sirf_runtime_suspend(struct device *dev)
		{
		struct sirf_data *data = dev_get_drvdata(dev);
		int ret2;
		int ret;

		if (data->on_off)
		ret = sirf_set_active(data, false);
		else
		ret = regulator_disable(data->vcc);

		if (ret)
		return ret;

		if (!data->on_off)
		return regulator_disable(data->vcc);
		ret = regulator_disable(data->lna);
		if (ret)
		goto err_reenable;

		return 0;

		err_reenable:
		if (data->on_off)
		ret2 = sirf_set_active(data, true);
		else
		ret2 = regulator_enable(data->vcc);

		return sirf_set_active(data, false);
		if (ret2)
		dev_err(dev,
		"failed to reenable power on failed suspend: %d\n",
		ret2);

		return ret;
		}

		static int sirf_runtime_resume(struct device *dev)
		{
		struct sirf_data *data = dev_get_drvdata(dev);
		int ret;

		ret = regulator_enable(data->lna);
		if (ret)
		return ret;

		if (data->on_off)
		ret = sirf_set_active(data, true);
		else
		ret = regulator_enable(data->vcc);

		if (!data->on_off)
		return regulator_enable(data->vcc);
		if (ret)
		goto err_disable_lna;

		return 0;

		err_disable_lna:
		regulator_disable(data->lna);

		return sirf_set_active(data, true);
		return ret;
		}

		static int __maybe_unused sirf_suspend(struct device *dev)
		@@ -391,6 +431,12 @@ 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))

Admin message