Exporting the device class allows other parts of the kernel to enumerate
the devfreq devices and receive notification when a devfreq device is
added or removed.
Signed-off-by: Matthias Kaehlcke <mka@xxxxxxxxxxxx>
Reviewed-by: Brian Norris <briannorris@xxxxxxxxxxxx>
---
Changes in v4:
- added 'Reviewed-by: Brian Norris <briannorris@xxxxxxxxxxxx>' tag
Changes in v3:
- none
Changes in v2:
- patch added to series
---
drivers/devfreq/devfreq.c | 3 ++-
include/linux/devfreq.h | 2 ++
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index 4cbaa7ad1972..38b90b64fc6e 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -31,7 +31,8 @@
#define MAX(a,b) ((a > b) ? a : b)
#define MIN(a,b) ((a < b) ? a : b)
-static struct class *devfreq_class;
+struct class *devfreq_class;
+EXPORT_SYMBOL_GPL(devfreq_class);
/*
* devfreq core provides delayed work based load monitoring helper
diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h
index c4f84a769cb5..964e064a951f 100644
--- a/include/linux/devfreq.h
+++ b/include/linux/devfreq.h
@@ -206,6 +206,8 @@ struct devfreq_freqs {
};
#if defined(CONFIG_PM_DEVFREQ)
+extern struct class *devfreq_class;
+
extern struct devfreq *devfreq_add_device(struct device *dev,
struct devfreq_dev_profile *profile,
const char *governor_name,
--
2.18.0.rc2.346.g013aa6912e-goog
--
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