diff mbox series

[v3,09/12] opp: Add devm_pm_opp_attach_genpd

Message ID 20210118005524.27787-10-digetx@gmail.com (mailing list archive)
State New
Delegated to: viresh kumar
Headers show
Series OPP API fixes and improvements | expand

Commit Message

Dmitry Osipenko Jan. 18, 2021, 12:55 a.m. UTC
Add resource-managed version of dev_pm_opp_attach_genpd().

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
 drivers/opp/core.c     | 35 +++++++++++++++++++++++++++++++++++
 include/linux/pm_opp.h |  8 ++++++++
 2 files changed, 43 insertions(+)

Comments

Viresh Kumar Jan. 18, 2021, 11:14 a.m. UTC | #1
On 18-01-21, 03:55, Dmitry Osipenko wrote:
> Add resource-managed version of dev_pm_opp_attach_genpd().
> 
> Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
> ---
>  drivers/opp/core.c     | 35 +++++++++++++++++++++++++++++++++++
>  include/linux/pm_opp.h |  8 ++++++++
>  2 files changed, 43 insertions(+)
> 
> diff --git a/drivers/opp/core.c b/drivers/opp/core.c
> index 8e0d2193fd5f..49419ab9fbb4 100644
> --- a/drivers/opp/core.c
> +++ b/drivers/opp/core.c
> @@ -2891,3 +2891,38 @@ devm_pm_opp_register_set_opp_helper(struct device *dev,
>  	return opp_table;
>  }
>  EXPORT_SYMBOL_GPL(devm_pm_opp_register_set_opp_helper);
> +
> +static void devm_pm_opp_detach_genpd(void *data)
> +{
> +	dev_pm_opp_detach_genpd(data);
> +}
> +
> +/**
> + * devm_pm_opp_attach_genpd - Attach genpd(s) for the device and save virtual device pointer
> + * @dev: Consumer device for which the genpd is getting attached.
> + * @names: Null terminated array of pointers containing names of genpd to attach.
> + * @virt_devs: Pointer to return the array of virtual devices.
> + *
> + * This is a resource-managed version of dev_pm_opp_attach_genpd().
> + *
> + * Return: pointer to 'struct opp_table' on success and errorno otherwise.
> + */
> +struct opp_table *
> +devm_pm_opp_attach_genpd(struct device *dev, const char **names,
> +			 struct device ***virt_devs)
> +{
> +	struct opp_table *opp_table;
> +	int err;
> +
> +	opp_table = dev_pm_opp_attach_genpd(dev, names, virt_devs);
> +	if (IS_ERR(opp_table))
> +		return opp_table;
> +
> +	err = devm_add_action_or_reset(dev, devm_pm_opp_detach_genpd,
> +				       opp_table);
> +	if (err)
> +		return ERR_PTR(err);
> +
> +	return opp_table;
> +}
> +EXPORT_SYMBOL_GPL(devm_pm_opp_attach_genpd);
> diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h
> index 6de5853aaada..eefd0b15890c 100644
> --- a/include/linux/pm_opp.h
> +++ b/include/linux/pm_opp.h
> @@ -170,6 +170,7 @@ void dev_pm_opp_cpumask_remove_table(const struct cpumask *cpumask);
>  int dev_pm_opp_sync_regulators(struct device *dev);
>  int dev_pm_opp_set_voltage(struct device *dev, struct dev_pm_opp *opp);
>  struct opp_table *devm_pm_opp_register_set_opp_helper(struct device *dev, int (*set_opp)(struct dev_pm_set_opp_data *data));
> +struct opp_table *devm_pm_opp_attach_genpd(struct device *dev, const char **names, struct device ***virt_devs);
>  #else
>  static inline struct opp_table *dev_pm_opp_get_opp_table(struct device *dev)
>  {
> @@ -436,6 +437,13 @@ devm_pm_opp_register_set_opp_helper(struct device *dev,
>  	return ERR_PTR(-ENOTSUPP);
>  }
>  
> +static inline struct opp_table *
> +devm_pm_opp_attach_genpd(struct device *dev, const char **names,
> +			 struct device ***virt_devs)
> +{
> +	return ERR_PTR(-ENOTSUPP);
> +}
> +
>  #endif		/* CONFIG_PM_OPP */
>  
>  #if defined(CONFIG_PM_OPP) && defined(CONFIG_OF)

Manually applied. Thanks.
diff mbox series

Patch

diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index 8e0d2193fd5f..49419ab9fbb4 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -2891,3 +2891,38 @@  devm_pm_opp_register_set_opp_helper(struct device *dev,
 	return opp_table;
 }
 EXPORT_SYMBOL_GPL(devm_pm_opp_register_set_opp_helper);
+
+static void devm_pm_opp_detach_genpd(void *data)
+{
+	dev_pm_opp_detach_genpd(data);
+}
+
+/**
+ * devm_pm_opp_attach_genpd - Attach genpd(s) for the device and save virtual device pointer
+ * @dev: Consumer device for which the genpd is getting attached.
+ * @names: Null terminated array of pointers containing names of genpd to attach.
+ * @virt_devs: Pointer to return the array of virtual devices.
+ *
+ * This is a resource-managed version of dev_pm_opp_attach_genpd().
+ *
+ * Return: pointer to 'struct opp_table' on success and errorno otherwise.
+ */
+struct opp_table *
+devm_pm_opp_attach_genpd(struct device *dev, const char **names,
+			 struct device ***virt_devs)
+{
+	struct opp_table *opp_table;
+	int err;
+
+	opp_table = dev_pm_opp_attach_genpd(dev, names, virt_devs);
+	if (IS_ERR(opp_table))
+		return opp_table;
+
+	err = devm_add_action_or_reset(dev, devm_pm_opp_detach_genpd,
+				       opp_table);
+	if (err)
+		return ERR_PTR(err);
+
+	return opp_table;
+}
+EXPORT_SYMBOL_GPL(devm_pm_opp_attach_genpd);
diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h
index 6de5853aaada..eefd0b15890c 100644
--- a/include/linux/pm_opp.h
+++ b/include/linux/pm_opp.h
@@ -170,6 +170,7 @@  void dev_pm_opp_cpumask_remove_table(const struct cpumask *cpumask);
 int dev_pm_opp_sync_regulators(struct device *dev);
 int dev_pm_opp_set_voltage(struct device *dev, struct dev_pm_opp *opp);
 struct opp_table *devm_pm_opp_register_set_opp_helper(struct device *dev, int (*set_opp)(struct dev_pm_set_opp_data *data));
+struct opp_table *devm_pm_opp_attach_genpd(struct device *dev, const char **names, struct device ***virt_devs);
 #else
 static inline struct opp_table *dev_pm_opp_get_opp_table(struct device *dev)
 {
@@ -436,6 +437,13 @@  devm_pm_opp_register_set_opp_helper(struct device *dev,
 	return ERR_PTR(-ENOTSUPP);
 }
 
+static inline struct opp_table *
+devm_pm_opp_attach_genpd(struct device *dev, const char **names,
+			 struct device ***virt_devs)
+{
+	return ERR_PTR(-ENOTSUPP);
+}
+
 #endif		/* CONFIG_PM_OPP */
 
 #if defined(CONFIG_PM_OPP) && defined(CONFIG_OF)