This is a note to let you know that I've just added the patch titled PM / devfreq: Fix wrong trans_stat of passive devfreq device to the 4.10-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: pm-devfreq-fix-wrong-trans_stat-of-passive-devfreq-device.patch and it can be found in the queue-4.10 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 30582c25a4b4e0a5e456a309fde79b845e9473b2 Mon Sep 17 00:00:00 2001 From: Chanwoo Choi <cw00.choi@xxxxxxxxxxx> Date: Tue, 31 Jan 2017 15:38:17 +0900 Subject: PM / devfreq: Fix wrong trans_stat of passive devfreq device From: Chanwoo Choi <cw00.choi@xxxxxxxxxxx> commit 30582c25a4b4e0a5e456a309fde79b845e9473b2 upstream. Until now, the trans_stat information of passive devfreq is not updated. This patch updates the trans_stat information after setting the target frequency of passive devfreq device. Fixes: 996133119f57 ("PM / devfreq: Add new passive governor") Signed-off-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx> Signed-off-by: MyungJoo Ham <myungjoo.ham@xxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/devfreq/devfreq.c | 3 ++- drivers/devfreq/governor.h | 2 ++ drivers/devfreq/governor_passive.c | 5 +++++ 3 files changed, 9 insertions(+), 1 deletion(-) --- a/drivers/devfreq/devfreq.c +++ b/drivers/devfreq/devfreq.c @@ -130,7 +130,7 @@ static void devfreq_set_freq_table(struc * @devfreq: the devfreq instance * @freq: the update target frequency */ -static int devfreq_update_status(struct devfreq *devfreq, unsigned long freq) +int devfreq_update_status(struct devfreq *devfreq, unsigned long freq) { int lev, prev_lev, ret = 0; unsigned long cur_time; @@ -166,6 +166,7 @@ out: devfreq->last_stat_updated = cur_time; return ret; } +EXPORT_SYMBOL(devfreq_update_status); /** * find_devfreq_governor() - find devfreq governor from name --- a/drivers/devfreq/governor.h +++ b/drivers/devfreq/governor.h @@ -38,4 +38,6 @@ extern void devfreq_interval_update(stru extern int devfreq_add_governor(struct devfreq_governor *governor); extern int devfreq_remove_governor(struct devfreq_governor *governor); +extern int devfreq_update_status(struct devfreq *devfreq, unsigned long freq); + #endif /* _GOVERNOR_H */ --- a/drivers/devfreq/governor_passive.c +++ b/drivers/devfreq/governor_passive.c @@ -112,6 +112,11 @@ static int update_devfreq_passive(struct if (ret < 0) goto out; + if (devfreq->profile->freq_table + && (devfreq_update_status(devfreq, freq))) + dev_err(&devfreq->dev, + "Couldn't update frequency transition information.\n"); + devfreq->previous_freq = freq; out: Patches currently in stable-queue which might be from cw00.choi@xxxxxxxxxxx are queue-4.10/pm-devfreq-fix-wrong-trans_stat-of-passive-devfreq-device.patch queue-4.10/pm-devfreq-fix-available_governor-sysfs.patch