Re: [PATCH v3 10/12] opp: Support set_opp() customization without requiring to use regulators

[Viresh Kumar]

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

-- 
viresh