| Message ID | 20180525203043.249193-5-mka@chromium.org (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
> The userspace and simpleondemand governor determine a target frequency and > then adjust it according to the df->min/max_freq limits that might have > been set by user space. This adjustment is redundant, it is done in > update_devfreq() for any governor, right after returning from > governor->get_target_freq(). > > Signed-off-by: Matthias Kaehlcke <mka@chromium.org> > --- > drivers/devfreq/governor_simpleondemand.c | 5 ----- > drivers/devfreq/governor_userspace.c | 16 ++++------------ > 2 files changed, 4 insertions(+), 17 deletions(-) > Yes, indeed. Governors are no longer required to be aware of min/max freq. Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Hi, On 2018년 05월 26일 05:30, Matthias Kaehlcke wrote: > The userspace and simpleondemand governor determine a target frequency and > then adjust it according to the df->min/max_freq limits that might have > been set by user space. This adjustment is redundant, it is done in > update_devfreq() for any governor, right after returning from > governor->get_target_freq(). > > Signed-off-by: Matthias Kaehlcke <mka@chromium.org> > --- > drivers/devfreq/governor_simpleondemand.c | 5 ----- > drivers/devfreq/governor_userspace.c | 16 ++++------------ > 2 files changed, 4 insertions(+), 17 deletions(-) > > diff --git a/drivers/devfreq/governor_simpleondemand.c b/drivers/devfreq/governor_simpleondemand.c > index 278964783fa6..3da7554b4837 100644 > --- a/drivers/devfreq/governor_simpleondemand.c > +++ b/drivers/devfreq/governor_simpleondemand.c > @@ -84,11 +84,6 @@ static int devfreq_simple_ondemand_func(struct devfreq *df, > b = div_u64(b, (dfso_upthreshold - dfso_downdifferential / 2)); > *freq = (unsigned long) b; > > - if (df->min_freq && *freq < df->min_freq) > - *freq = df->min_freq; > - if (df->max_freq && *freq > df->max_freq) > - *freq = df->max_freq; > - > return 0; > } > > diff --git a/drivers/devfreq/governor_userspace.c b/drivers/devfreq/governor_userspace.c > index 080607c3f34d..378d84c011df 100644 > --- a/drivers/devfreq/governor_userspace.c > +++ b/drivers/devfreq/governor_userspace.c > @@ -26,19 +26,11 @@ static int devfreq_userspace_func(struct devfreq *df, unsigned long *freq) > { > struct userspace_data *data = df->data; > > - if (data->valid) { > - unsigned long adjusted_freq = data->user_frequency; > - > - if (df->max_freq && adjusted_freq > df->max_freq) > - adjusted_freq = df->max_freq; > - > - if (df->min_freq && adjusted_freq < df->min_freq) > - adjusted_freq = df->min_freq; > - > - *freq = adjusted_freq; > - } else { > + if (data->valid) > + *freq = data->user_frequency; > + else > *freq = df->previous_freq; /* No user freq specified yet */ > - } > + > return 0; > } > > Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
diff --git a/drivers/devfreq/governor_simpleondemand.c b/drivers/devfreq/governor_simpleondemand.c index 278964783fa6..3da7554b4837 100644 --- a/drivers/devfreq/governor_simpleondemand.c +++ b/drivers/devfreq/governor_simpleondemand.c @@ -84,11 +84,6 @@ static int devfreq_simple_ondemand_func(struct devfreq *df, b = div_u64(b, (dfso_upthreshold - dfso_downdifferential / 2)); *freq = (unsigned long) b; - if (df->min_freq && *freq < df->min_freq) - *freq = df->min_freq; - if (df->max_freq && *freq > df->max_freq) - *freq = df->max_freq; - return 0; } diff --git a/drivers/devfreq/governor_userspace.c b/drivers/devfreq/governor_userspace.c index 080607c3f34d..378d84c011df 100644 --- a/drivers/devfreq/governor_userspace.c +++ b/drivers/devfreq/governor_userspace.c @@ -26,19 +26,11 @@ static int devfreq_userspace_func(struct devfreq *df, unsigned long *freq) { struct userspace_data *data = df->data; - if (data->valid) { - unsigned long adjusted_freq = data->user_frequency; - - if (df->max_freq && adjusted_freq > df->max_freq) - adjusted_freq = df->max_freq; - - if (df->min_freq && adjusted_freq < df->min_freq) - adjusted_freq = df->min_freq; - - *freq = adjusted_freq; - } else { + if (data->valid) + *freq = data->user_frequency; + else *freq = df->previous_freq; /* No user freq specified yet */ - } + return 0; }
The userspace and simpleondemand governor determine a target frequency and then adjust it according to the df->min/max_freq limits that might have been set by user space. This adjustment is redundant, it is done in update_devfreq() for any governor, right after returning from governor->get_target_freq(). Signed-off-by: Matthias Kaehlcke <mka@chromium.org> --- drivers/devfreq/governor_simpleondemand.c | 5 ----- drivers/devfreq/governor_userspace.c | 16 ++++------------ 2 files changed, 4 insertions(+), 17 deletions(-)