[PATCH v4 07/12] PM / devfreq: export devfreq_class
From: Matthias Kaehlcke <mka@chromium.org>
Date: 2018-06-21 01:53:38
Also in:
linux-pm, lkml
Subsystem:
device frequency (devfreq), the rest · Maintainers:
MyungJoo Ham, Kyungmin Park, Chanwoo Choi, Linus Torvalds
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@chromium.org> Reviewed-by: Brian Norris <briannorris@chromium.org> --- Changes in v4: - added 'Reviewed-by: Brian Norris [off-list ref]' 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