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@xxxxxxxxxx>
---
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);
--
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