| Message ID | 20190423132823.7915-5-georgi.djakov@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Introduce OPP bandwidth bindings | expand |
On 23-04-19, 16:28, Georgi Djakov wrote: > If the OPP bandwidth values are populated, we want to switch also the > interconnect bandwidth in addition to frequency and voltage. > > Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org> > --- > drivers/opp/core.c | 9 ++++++++- > 1 file changed, 8 insertions(+), 1 deletion(-) > > diff --git a/drivers/opp/core.c b/drivers/opp/core.c > index 97ee39ecdebd..91d1c2abfb3e 100644 > --- a/drivers/opp/core.c > +++ b/drivers/opp/core.c > @@ -707,7 +707,7 @@ int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq) > unsigned long freq, old_freq; > struct dev_pm_opp *old_opp, *opp; > struct clk *clk; > - int ret; > + int ret, i; > > if (unlikely(!target_freq)) { > dev_err(dev, "%s: Invalid target frequency %lu\n", __func__, > @@ -780,6 +780,13 @@ int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq) > ret = _generic_set_opp_clk_only(dev, clk, freq); > } > > + if (!ret && !IS_ERR_OR_NULL(opp_table->paths)) { Can paths ever have a error value ? I believe only checking for NULL is sufficient ? > + for (i = 0; i < opp_table->path_count; i++) { > + icc_set_bw(opp_table->paths[i], opp->bandwidth[i].avg, > + opp->bandwidth[i].peak); > + } > + } > + I will set the path after required_opps are set. > /* Scaling down? Configure required OPPs after frequency */ > if (!ret && freq < old_freq) { > ret = _set_required_opps(dev, opp_table, opp);
Hey Georgi, On 4/23/19 6:58 PM, Georgi Djakov wrote: > If the OPP bandwidth values are populated, we want to switch also the > interconnect bandwidth in addition to frequency and voltage. > > Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org> > --- > drivers/opp/core.c | 9 ++++++++- > 1 file changed, 8 insertions(+), 1 deletion(-) > > diff --git a/drivers/opp/core.c b/drivers/opp/core.c > index 97ee39ecdebd..91d1c2abfb3e 100644 > --- a/drivers/opp/core.c > +++ b/drivers/opp/core.c > @@ -707,7 +707,7 @@ int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq) > unsigned long freq, old_freq; > struct dev_pm_opp *old_opp, *opp; > struct clk *clk; > - int ret; > + int ret, i; > > if (unlikely(!target_freq)) { > dev_err(dev, "%s: Invalid target frequency %lu\n", __func__, > @@ -780,6 +780,13 @@ int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq) > ret = _generic_set_opp_clk_only(dev, clk, freq); > } > > + if (!ret && !IS_ERR_OR_NULL(opp_table->paths)) { > + for (i = 0; i < opp_table->path_count; i++) { > + icc_set_bw(opp_table->paths[i], opp->bandwidth[i].avg, > + opp->bandwidth[i].peak); > + } > + } An helper funcion dev_pm_opp_set_bw() would be needed by devices that use alternative ways of scaling like "qcom-cpufreq-hw". I can probably do that when I get ddr scaling working on sdm845 with your series. > + > /* Scaling down? Configure required OPPs after frequency */ > if (!ret && freq < old_freq) { > ret = _set_required_opps(dev, opp_table, opp); >
diff --git a/drivers/opp/core.c b/drivers/opp/core.c index 97ee39ecdebd..91d1c2abfb3e 100644 --- a/drivers/opp/core.c +++ b/drivers/opp/core.c @@ -707,7 +707,7 @@ int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq) unsigned long freq, old_freq; struct dev_pm_opp *old_opp, *opp; struct clk *clk; - int ret; + int ret, i; if (unlikely(!target_freq)) { dev_err(dev, "%s: Invalid target frequency %lu\n", __func__, @@ -780,6 +780,13 @@ int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq) ret = _generic_set_opp_clk_only(dev, clk, freq); } + if (!ret && !IS_ERR_OR_NULL(opp_table->paths)) { + for (i = 0; i < opp_table->path_count; i++) { + icc_set_bw(opp_table->paths[i], opp->bandwidth[i].avg, + opp->bandwidth[i].peak); + } + } + /* Scaling down? Configure required OPPs after frequency */ if (!ret && freq < old_freq) { ret = _set_required_opps(dev, opp_table, opp);
If the OPP bandwidth values are populated, we want to switch also the interconnect bandwidth in addition to frequency and voltage. Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org> --- drivers/opp/core.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)