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authorDmitry Osipenko <digetx@gmail.com>2021-01-21 01:26:49 +0300
committerViresh Kumar <viresh.kumar@linaro.org>2021-02-02 10:27:43 +0530
commit04b447df1d098dcd7d133203a310a6d415875547 (patch)
treee95c1618a7fbaaea8f9082770c631c4a000902bd /drivers/opp
parent38bb34393804b79eff647bdf96762db5efce392c (diff)
downloadlinux-04b447df1d098dcd7d133203a310a6d415875547.tar.bz2
opp: Make _set_opp_custom() work without regulators
Check whether OPP table has regulators in _set_opp_custom() and set up dev_pm_set_opp_data accordingly. Now _set_opp_custom() works properly, i.e. it doesn't crash if OPP table doesn't have assigned regulators. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> [ Viresh: Rearrange the routine a bit ] Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Diffstat (limited to 'drivers/opp')
-rw-r--r--drivers/opp/core.c29
1 files changed, 18 insertions, 11 deletions
diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index f482937d72eb..b4528e40ad01 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -828,24 +828,31 @@ static int _set_opp_custom(const struct opp_table *opp_table,
struct dev_pm_opp_supply *old_supply,
struct dev_pm_opp_supply *new_supply)
{
- struct dev_pm_set_opp_data *data;
+ struct dev_pm_set_opp_data *data = opp_table->set_opp_data;
int size;
- data = opp_table->set_opp_data;
+ /*
+ * We support this only if dev_pm_opp_set_regulators() was called
+ * earlier.
+ */
+ if (opp_table->sod_supplies) {
+ size = sizeof(*old_supply) * opp_table->regulator_count;
+ if (!old_supply)
+ memset(data->old_opp.supplies, 0, size);
+ else
+ memcpy(data->old_opp.supplies, old_supply, size);
+
+ memcpy(data->new_opp.supplies, new_supply, size);
+ data->regulator_count = opp_table->regulator_count;
+ } else {
+ data->regulator_count = 0;
+ }
+
data->regulators = opp_table->regulators;
- data->regulator_count = opp_table->regulator_count;
data->clk = opp_table->clk;
data->dev = dev;
-
data->old_opp.rate = old_freq;
- size = sizeof(*old_supply) * opp_table->regulator_count;
- if (!old_supply)
- memset(data->old_opp.supplies, 0, size);
- else
- memcpy(data->old_opp.supplies, old_supply, size);
-
data->new_opp.rate = freq;
- memcpy(data->new_opp.supplies, new_supply, size);
return opp_table->set_opp(data);
}