opp: Update the bandwidth on OPP frequency changes

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>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>

diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index d19cc79..c3ce39c 100644 (file)
--- 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: