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| author |   Chanwoo Choi <cw00.choi@samsung.com> | 2016-04-14 14:37:12 +0900 |
|---|---|---|
| committer |   MyungJoo Ham <myungjoo.ham@samsung.com> | 2016-05-03 11:21:51 +0900 |
| commit | 19cf91d0f9ddc494217a0abaed91dfbddea7c958 (patch) | |
| tree | 9ec34e787a65122cd9c3cf82aa6d41d687dc5274 /drivers/devfreq/devfreq-event.c | |
| parent | PM / devfreq: event: Add new Exynos NoC probe driver (diff) | |
| download | linux-dev-19cf91d0f9ddc494217a0abaed91dfbddea7c958.tar.xz linux-dev-19cf91d0f9ddc494217a0abaed91dfbddea7c958.zip | |
PM / devfreq: event: Find the instance of devfreq-event device by using phandle
This patch use the phandle to find the instance of devfreq-event device in
Device Tree when calling the devfreq_event_get_edev_by_phandle() because there
is two type devfreq-event devices as following:
First case, exynos-ppmu.c driver provides the maximum four event of each PPMU.
So, when getting the instance of devfreq-event device, using the unique name of
struct devfreq_event_desc.
Second case, exynos-nocp.c driver provide the only one event of each NoC Probe
device. So, when getting the instance of devfreq-event device, using the
phandle of each NoC probe device.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Diffstat (limited to 'drivers/devfreq/devfreq-event.c')
| -rw-r--r-- | drivers/devfreq/devfreq-event.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/devfreq/devfreq-event.c b/drivers/devfreq/devfreq-event.c index 38bf144ca147..39b048eda2ce 100644 --- a/drivers/devfreq/devfreq-event.c +++ b/drivers/devfreq/devfreq-event.c @@ -235,6 +235,11 @@ struct devfreq_event_dev *devfreq_event_get_edev_by_phandle(struct device *dev, mutex_lock(&devfreq_event_list_lock); list_for_each_entry(edev, &devfreq_event_list, node) { + if (edev->dev.parent && edev->dev.parent->of_node == node) + goto out; + } + + list_for_each_entry(edev, &devfreq_event_list, node) { if (!strcmp(edev->desc->name, node->name)) goto out; } |