Commit a05bb963 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_passive() 



This patch adds a new exynos_bus_profile_init_passive()
extracted from exynos_bus_probe() for devfreq device using passive governor.

Signed-off-by: default avatarArtur Świgoń <a.swigon@samsung.com>
[cw00.choi: Edit description to indicate that function is for devfreq device
using passive governor]
Signed-off-by: default avatarChanwoo Choi <cw00.choi@samsung.com>
parent a47a97ec

drivers/devfreq/exynos-bus.c

+42 −28
Original line number Diff line number Diff line
@@ -345,13 +345,51 @@ err: 
	return ret;

}



static int exynos_bus_profile_init_passive(struct exynos_bus *bus,

					   struct devfreq_dev_profile *profile)

{

	struct device *dev = bus->dev;

	struct devfreq_passive_data *passive_data;

	struct devfreq *parent_devfreq;

	int ret = 0;



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

	profile->target = exynos_bus_target;

	profile->exit = exynos_bus_passive_exit;



	/* Get the instance of parent devfreq device */

	parent_devfreq = devfreq_get_devfreq_by_phandle(dev, 0);

	if (IS_ERR(parent_devfreq)) {

		ret = -EPROBE_DEFER;

		goto err;

	}



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

	if (!passive_data) {

		ret = -ENOMEM;

		goto err;

	}

	passive_data->parent = parent_devfreq;



	/* Add devfreq device for exynos bus with passive governor */

	bus->devfreq = devm_devfreq_add_device(dev, profile, DEVFREQ_GOV_PASSIVE,

						passive_data);

	if (IS_ERR(bus->devfreq)) {

		dev_err(dev,

			"failed to add devfreq dev with passive governor\n");

		ret = PTR_ERR(bus->devfreq);

		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;
@@ -397,33 +435,9 @@ static int exynos_bus_probe(struct platform_device *pdev) 


	goto out;

passive:

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

	profile->target = exynos_bus_target;

	profile->exit = exynos_bus_passive_exit;



	/* Get the instance of parent devfreq device */

	parent_devfreq = devfreq_get_devfreq_by_phandle(dev, 0);

	if (IS_ERR(parent_devfreq)) {

		ret = -EPROBE_DEFER;

		goto err;

	}



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

	if (!passive_data) {

		ret = -ENOMEM;

		goto err;

	}

	passive_data->parent = parent_devfreq;



	/* Add devfreq device for exynos bus with passive governor */

	bus->devfreq = devm_devfreq_add_device(dev, profile, DEVFREQ_GOV_PASSIVE,

						passive_data);

	if (IS_ERR(bus->devfreq)) {

		dev_err(dev,

			"failed to add devfreq dev with passive governor\n");

		ret = PTR_ERR(bus->devfreq);

	ret = exynos_bus_profile_init_passive(bus, profile);

	if (ret < 0)

		goto err;

	}



out:

	max_state = bus->devfreq->profile->max_state;

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