| Message ID | bee69d4635f83d8812fedbc108beb6c51ac9d4e7.1570044052.git.leonard.crestez@nxp.com (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
| Series | PM / devfreq: Add dev_pm_qos support | expand |
On Wed, Oct 02, 2019 at 10:25:06PM +0300, Leonard Crestez wrote: > The devfreq_notifier_call functions will update scaling_min_freq and > scaling_max_freq when the OPP table is updated. > > If fetching the maximum frequency fails then scaling_max_freq remains > set to zero which is confusing. Set to ULONG_MAX instead so we don't > need special handling for this case in other places. > > Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> > --- > drivers/devfreq/devfreq.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c > index 32bbf6e80380..3e0e936185a3 100644 > --- a/drivers/devfreq/devfreq.c > +++ b/drivers/devfreq/devfreq.c > @@ -557,12 +557,14 @@ static int devfreq_notifier_call(struct notifier_block *nb, unsigned long type, > devfreq->scaling_min_freq = find_available_min_freq(devfreq); > if (!devfreq->scaling_min_freq) > goto out; > > devfreq->scaling_max_freq = find_available_max_freq(devfreq); > - if (!devfreq->scaling_max_freq) > + if (!devfreq->scaling_max_freq) { > + devfreq->scaling_max_freq = ULONG_MAX; > goto out; > + } > > err = update_devfreq(devfreq); > > out: > mutex_unlock(&devfreq->lock); > -- > 2.17.1 > Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
On 19. 10. 3. 오전 4:25, Leonard Crestez wrote: > The devfreq_notifier_call functions will update scaling_min_freq and > scaling_max_freq when the OPP table is updated. > > If fetching the maximum frequency fails then scaling_max_freq remains > set to zero which is confusing. Set to ULONG_MAX instead so we don't > need special handling for this case in other places. > > Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> > --- > drivers/devfreq/devfreq.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c > index 32bbf6e80380..3e0e936185a3 100644 > --- a/drivers/devfreq/devfreq.c > +++ b/drivers/devfreq/devfreq.c > @@ -557,12 +557,14 @@ static int devfreq_notifier_call(struct notifier_block *nb, unsigned long type, > devfreq->scaling_min_freq = find_available_min_freq(devfreq); > if (!devfreq->scaling_min_freq) > goto out; > > devfreq->scaling_max_freq = find_available_max_freq(devfreq); > - if (!devfreq->scaling_max_freq) > + if (!devfreq->scaling_max_freq) { > + devfreq->scaling_max_freq = ULONG_MAX; > goto out; > + } > > err = update_devfreq(devfreq); > > out: > mutex_unlock(&devfreq->lock); > Sorry for the late reply. Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c index 32bbf6e80380..3e0e936185a3 100644 --- a/drivers/devfreq/devfreq.c +++ b/drivers/devfreq/devfreq.c @@ -557,12 +557,14 @@ static int devfreq_notifier_call(struct notifier_block *nb, unsigned long type, devfreq->scaling_min_freq = find_available_min_freq(devfreq); if (!devfreq->scaling_min_freq) goto out; devfreq->scaling_max_freq = find_available_max_freq(devfreq); - if (!devfreq->scaling_max_freq) + if (!devfreq->scaling_max_freq) { + devfreq->scaling_max_freq = ULONG_MAX; goto out; + } err = update_devfreq(devfreq); out: mutex_unlock(&devfreq->lock);
The devfreq_notifier_call functions will update scaling_min_freq and scaling_max_freq when the OPP table is updated. If fetching the maximum frequency fails then scaling_max_freq remains set to zero which is confusing. Set to ULONG_MAX instead so we don't need special handling for this case in other places. Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> --- drivers/devfreq/devfreq.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)