[PATCH v8 06/10] OPP: Update the bandwidth on OPP frequency changes
From: Georgi Djakov <hidden>
Date: 2020-05-12 12:54:20
Also in:
linux-pm, lkml
Subsystem:
operating performance points (opp), the rest · Maintainers:
Viresh Kumar, Nishanth Menon, Stephen Boyd, Linus Torvalds
If the OPP bandwidth values are populated, we want to switch also the interconnect bandwidth in addition to frequency and voltage. Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Reviewed-by: Sibi Sankar <redacted> Signed-off-by: Georgi Djakov <redacted> --- v8: * Picked reviewed-by tags. drivers/opp/core.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index a3dd0bc9b9f6..b4cc4b12d57b 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c@@ -808,7 +808,7 @@ int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq) unsigned long freq, old_freq, temp_freq; struct dev_pm_opp *old_opp, *opp; struct clk *clk; - int ret; + int ret, i; opp_table = _find_opp_table(dev); if (IS_ERR(opp_table)) {
@@ -909,6 +909,17 @@ int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq) dev_err(dev, "Failed to set required opps: %d\n", ret); } + if (!ret && opp_table->paths) { + for (i = 0; i < opp_table->path_count; i++) { + ret = icc_set_bw(opp_table->paths[i], + opp->bandwidth[i].avg, + opp->bandwidth[i].peak); + if (ret) + dev_err(dev, "Failed to set bandwidth[%d]: %d\n", + i, ret); + } + } + put_opp: dev_pm_opp_put(opp); put_old_opp: