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Subject[PATCH RFC 2/9] OPP: Export a number of helpers to prevent code duplication
Date
Export 'dev_pm_opp_find_opp_of_np' and 'of_parse_required_nodes'
as it will be used by passive governor to parse and auto-populate
mapping specified using the required-opps property.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
---
drivers/opp/of.c | 13 +++++++++++--
include/linux/pm_opp.h | 13 +++++++++++++
2 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/drivers/opp/of.c b/drivers/opp/of.c
index 539f3d013a59..d9d8875eca05 100644
--- a/drivers/opp/of.c
+++ b/drivers/opp/of.c
@@ -98,8 +98,8 @@ static struct dev_pm_opp *_find_opp_of_np(struct opp_table *opp_table,
return NULL;
}

-static struct device_node *of_parse_required_opp(struct device_node *np,
- int index)
+struct device_node *of_parse_required_opp(struct device_node *np,
+ int index)
{
struct device_node *required_np;

@@ -111,6 +111,15 @@ static struct device_node *of_parse_required_opp(struct device_node *np,

return required_np;
}
+EXPORT_SYMBOL_GPL(of_parse_required_opp);
+
+/* The caller must call dev_pm_opp_put() after the OPP is used */
+struct dev_pm_opp *dev_pm_opp_find_opp_of_np(struct opp_table *opp_table,
+ struct device_node *opp_np)
+{
+ return _find_opp_of_np(opp_table, opp_np);
+}
+EXPORT_SYMBOL_GPL(dev_pm_opp_find_opp_of_np);

/* The caller must call dev_pm_opp_put_opp_table() after the table is used */
static struct opp_table *_find_table_of_opp_np(struct device_node *opp_np)
diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h
index 82ff8e2e1ff7..d7cb0e65c4f0 100644
--- a/include/linux/pm_opp.h
+++ b/include/linux/pm_opp.h
@@ -359,8 +359,11 @@ void dev_pm_opp_of_cpumask_remove_table(const struct cpumask *cpumask);
int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpumask);
struct device_node *dev_pm_opp_of_get_opp_desc_node(struct device *dev);
struct device_node *dev_pm_opp_get_of_node(struct dev_pm_opp *opp);
+struct device_node *of_parse_required_opp(struct device_node *np, int index);
int of_get_required_opp_performance_state(struct device_node *np, int index);
void dev_pm_opp_of_register_em(struct cpumask *cpus);
+struct dev_pm_opp *dev_pm_opp_find_opp_of_np(struct opp_table *opp_table,
+ struct device_node *opp_np);
#else
static inline int dev_pm_opp_of_add_table(struct device *dev)
{
@@ -390,6 +393,11 @@ static inline int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, struct
return -ENOTSUPP;
}

+static inline struct dev_pm_opp *dev_pm_opp_find_opp_of_np(struct opp_table *opp_table, struct device_node *opp_np)
+{
+ return ERR_PTR(-ENOTSUPP);
+}
+
static inline struct device_node *dev_pm_opp_of_get_opp_desc_node(struct device *dev)
{
return NULL;
@@ -408,6 +416,11 @@ static inline int of_get_required_opp_performance_state(struct device_node *np,
{
return -ENOTSUPP;
}
+
+static inline struct device_node *of_parse_required_opp(struct device_node *np, int index)
+{
+ return NULL;
+}
#endif

#endif /* __LINUX_OPP_H__ */
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
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