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PM / devfreq: exynos-bus: Extract exynos_bus_profile_init()

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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: Artur Świgoń <a.swigon@samsung.com>
[cw00.choi: Edit description to indicate that new function is
for parent devfreq device]
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
This commit is contained in:
Artur Świgoń 2019-12-09 11:48:59 +01:00 committed by Chanwoo Choi
parent f9002b169a
commit a47a97ece5
1 changed files with 58 additions and 44 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

102
drivers/devfreq/exynos-bus.c
View file

@ -287,52 +287,12 @@ static int exynos_bus_parse_of(struct device_node *np,
return ret; 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 *dev = bus->dev;
struct device_node *np = dev->of_node, *node;
struct devfreq_dev_profile *profile;
struct devfreq_simple_ondemand_data *ondemand_data; struct devfreq_simple_ondemand_data *ondemand_data;
struct devfreq_passive_data *passive_data; int ret;
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;
/* Initialize the struct profile and governor data for parent device */ /* Initialize the struct profile and governor data for parent device */
profile->polling_ms = 50; profile->polling_ms = 50;
@ -381,6 +341,60 @@ static int exynos_bus_probe(struct platform_device *pdev)
goto err; 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; goto out;
passive: passive:
/* Initialize the struct profile and governor data for passive device */ /* Initialize the struct profile and governor data for passive device */