[PATCH v3 01/15] opp: Add devres wrapper for dev_pm_opp_set_clkname

Dmitry Osipenko
2021-03-14T16:35:29Z

Add devres wrapper for dev_pm_opp_set_clkname() to simplify drivers code.

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
drivers/opp/core.c | 27 +++++++++++++++++++++++++++
include/linux/pm_opp.h | 6 ++++++
2 files changed, 33 insertions(+)

diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index 150be4c28c99..02e46508a3a2 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -2119,6 +2119,33 @@ void dev_pm_opp_put_clkname(struct opp_table *opp_table)
}
EXPORT_SYMBOL_GPL(dev_pm_opp_put_clkname);

+static void devm_pm_opp_clkname_release(void *data)
+{
+ dev_pm_opp_put_clkname(data);
+}
+
+/**
+ * devm_pm_opp_set_clkname() - Set clk name for the device
+ * @dev: Device for which clk name is being set.
+ * @name: Clk name.
+ *
+ * This is a resource-managed variant of dev_pm_opp_set_clkname().
+ *
+ * Return: 0 on success and errorno otherwise.
+ */
+int devm_pm_opp_set_clkname(struct device *dev, const char *name)
+{
+ struct opp_table *opp_table;
+
+ opp_table = dev_pm_opp_set_clkname(dev, name);
+ if (IS_ERR(opp_table))
+ return PTR_ERR(opp_table);
+
+ return devm_add_action_or_reset(dev, devm_pm_opp_clkname_release,
+ opp_table);
+}
+EXPORT_SYMBOL_GPL(devm_pm_opp_set_clkname);
+
/**
* dev_pm_opp_register_set_opp_helper() - Register custom set OPP helper
* @dev: Device for which the helper is getting registered.
diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h
index c0371efa4a0f..0583d775aa5a 100644
--- a/include/linux/pm_opp.h
+++ b/include/linux/pm_opp.h
@@ -150,6 +150,7 @@ struct opp_table *dev_pm_opp_set_regulators(struct device *dev, const char * con
void dev_pm_opp_put_regulators(struct opp_table *opp_table);
struct opp_table *dev_pm_opp_set_clkname(struct device *dev, const char *name);
void dev_pm_opp_put_clkname(struct opp_table *opp_table);
+int devm_pm_opp_set_clkname(struct device *dev, const char *name);
struct opp_table *dev_pm_opp_register_set_opp_helper(struct device *dev, int (*set_opp)(struct dev_pm_set_opp_data *data));
void dev_pm_opp_unregister_set_opp_helper(struct opp_table *opp_table);
struct opp_table *devm_pm_opp_register_set_opp_helper(struct device *dev, int (*set_opp)(struct dev_pm_set_opp_data *data));
@@ -355,6 +356,11 @@ static inline struct opp_table *dev_pm_opp_set_clkname(struct device *dev, const

static inline void dev_pm_opp_put_clkname(struct opp_table *opp_table) {}

+static inline int devm_pm_opp_set_clkname(struct device *dev, const char *name)
+{
+ return -EOPNOTSUPP;
+}
+
static inline struct opp_table *dev_pm_opp_attach_genpd(struct device *dev, const char **names, struct device ***virt_devs)
{
return ERR_PTR(-EOPNOTSUPP);
--
2.30.2