18.01.2021 14:44, Viresh Kumar пишет:

On 18-01-21, 03:55, Dmitry Osipenko wrote:

quoted

diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h
index eefd0b15890c..c98fd2add563 100644
--- a/include/linux/pm_opp.h
+++ b/include/linux/pm_opp.h

@@ -13,6 +13,7 @@
 
 #include <linux/energy_model.h>
 #include <linux/err.h>
+#include <linux/kref.h>
 #include <linux/notifier.h>
 
 struct clk;

@@ -74,6 +75,7 @@ struct dev_pm_opp_info {
  * @regulator_count: Number of regulators
  * @clk:	Pointer to clk
  * @dev:	Pointer to the struct device
+ * @kref:	Reference counter
  *
  * This structure contains all information required for setting an OPP.
  */

@@ -85,6 +87,7 @@ struct dev_pm_set_opp_data {
 	unsigned int regulator_count;
 	struct clk *clk;
 	struct device *dev;
+	struct kref kref;
 };

Instead of kref thing, allocate the memory for supplies from
dev_pm_opp_set_regulators() and store it in new entries in opp-table
and for rest of the data from dev_pm_opp_register_set_opp_helper(), to
which you can copy supplies pointers then.

Could you please show a code sample?