Commit a47a97ec authored by Artur Świgoń's avatar Artur Świgoń Committed by Chanwoo Choi
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PM / devfreq: exynos-bus: Extract exynos_bus_profile_init() 



This patch adds a new exynos_bus_profile_init() extracted
from exynos_bus_probe() for devfreq device using simple_ondemand governor
like parent devfreq device.

Signed-off-by: default avatarArtur Świgoń <a.swigon@samsung.com>
[cw00.choi: Edit description to indicate that new function is
for parent devfreq device]
Signed-off-by: default avatarChanwoo Choi <cw00.choi@samsung.com>
parent f9002b16

drivers/devfreq/exynos-bus.c

+58 −44
Original line number Diff line number Diff line
@@ -287,52 +287,12 @@ err_clk: 
	return ret;

}



static int exynos_bus_probe(struct platform_device *pdev)

static int exynos_bus_profile_init(struct exynos_bus *bus,

				   struct devfreq_dev_profile *profile)

{

	struct device *dev = &pdev->dev;

	struct device_node *np = dev->of_node, *node;

	struct devfreq_dev_profile *profile;

	struct device *dev = bus->dev;

	struct devfreq_simple_ondemand_data *ondemand_data;

	struct devfreq_passive_data *passive_data;

	struct devfreq *parent_devfreq;

	struct exynos_bus *bus;

	int ret, max_state;

	unsigned long min_freq, max_freq;

	bool passive = false;



	if (!np) {

		dev_err(dev, "failed to find devicetree node\n");

		return -EINVAL;

	}



	bus = devm_kzalloc(&pdev->dev, sizeof(*bus), GFP_KERNEL);

	if (!bus)

		return -ENOMEM;

	mutex_init(&bus->lock);

	bus->dev = &pdev->dev;

	platform_set_drvdata(pdev, bus);



	profile = devm_kzalloc(dev, sizeof(*profile), GFP_KERNEL);

	if (!profile)

		return -ENOMEM;



	node = of_parse_phandle(dev->of_node, "devfreq", 0);

	if (node) {

		of_node_put(node);

		passive = true;

	} else {

		ret = exynos_bus_parent_parse_of(np, bus);

		if (ret < 0)

			return ret;

	}



	/* Parse the device-tree to get the resource information */

	ret = exynos_bus_parse_of(np, bus);

	if (ret < 0)

		goto err_reg;



	if (passive)

		goto passive;

	int ret;



	/* Initialize the struct profile and governor data for parent device */

	profile->polling_ms = 50;
@@ -381,6 +341,60 @@ static int exynos_bus_probe(struct platform_device *pdev) 
		goto err;

	}



err:

	return ret;

}



static int exynos_bus_probe(struct platform_device *pdev)

{

	struct device *dev = &pdev->dev;

	struct device_node *np = dev->of_node, *node;

	struct devfreq_dev_profile *profile;

	struct devfreq_passive_data *passive_data;

	struct devfreq *parent_devfreq;

	struct exynos_bus *bus;

	int ret, max_state;

	unsigned long min_freq, max_freq;

	bool passive = false;



	if (!np) {

		dev_err(dev, "failed to find devicetree node\n");

		return -EINVAL;

	}



	bus = devm_kzalloc(&pdev->dev, sizeof(*bus), GFP_KERNEL);

	if (!bus)

		return -ENOMEM;

	mutex_init(&bus->lock);

	bus->dev = &pdev->dev;

	platform_set_drvdata(pdev, bus);



	profile = devm_kzalloc(dev, sizeof(*profile), GFP_KERNEL);

	if (!profile)

		return -ENOMEM;



	node = of_parse_phandle(dev->of_node, "devfreq", 0);

	if (node) {

		of_node_put(node);

		passive = true;

	} else {

		ret = exynos_bus_parent_parse_of(np, bus);

		if (ret < 0)

			return ret;

	}



	/* Parse the device-tree to get the resource information */

	ret = exynos_bus_parse_of(np, bus);

	if (ret < 0)

		goto err_reg;



	if (passive)

		goto passive;



	ret = exynos_bus_profile_init(bus, profile);

	if (ret < 0)

		goto err;



	goto out;

passive:

	/* Initialize the struct profile and governor data for passive device */

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