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authorViresh Kumar <viresh.kumar@linaro.org>2018-09-05 16:17:14 +0530
committerViresh Kumar <viresh.kumar@linaro.org>2018-09-19 14:56:41 -0700
commiteb7c8743d6cf489e30091e6656fd4d3306621e9a (patch)
tree291da2bacbf57a1214f0082d2ed06a8b5cfc2c69 /drivers/opp
parentOPP: Protect dev_list with opp_table lock (diff)
downloadlinux-dev-eb7c8743d6cf489e30091e6656fd4d3306621e9a.tar.xz
linux-dev-eb7c8743d6cf489e30091e6656fd4d3306621e9a.zip
OPP: Pass index to _of_init_opp_table()
This is a preparatory patch required for the next commit which will start using OPP table's node pointer in _of_init_opp_table(), which requires the index in order to read the OPP table's phandle. This commit adds the index argument in the call chains in order to get it delivered to _of_init_opp_table(). Tested-by: Niklas Cassel <niklas.cassel@linaro.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Diffstat (limited to 'drivers/opp')
-rw-r--r--drivers/opp/core.c19
-rw-r--r--drivers/opp/of.c12
-rw-r--r--drivers/opp/opp.h4
3 files changed, 24 insertions, 11 deletions
diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index 9f8aa31265fe..332748adc262 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -785,7 +785,7 @@ struct opp_device *_add_opp_dev(const struct device *dev,
return opp_dev;
}
-static struct opp_table *_allocate_opp_table(struct device *dev)
+static struct opp_table *_allocate_opp_table(struct device *dev, int index)
{
struct opp_table *opp_table;
struct opp_device *opp_dev;
@@ -808,7 +808,7 @@ static struct opp_table *_allocate_opp_table(struct device *dev)
return NULL;
}
- _of_init_opp_table(opp_table, dev);
+ _of_init_opp_table(opp_table, dev, index);
/* Find clk for the device */
opp_table->clk = clk_get(dev, NULL);
@@ -833,7 +833,7 @@ void _get_opp_table_kref(struct opp_table *opp_table)
kref_get(&opp_table->kref);
}
-struct opp_table *dev_pm_opp_get_opp_table(struct device *dev)
+static struct opp_table *_opp_get_opp_table(struct device *dev, int index)
{
struct opp_table *opp_table;
@@ -844,15 +844,26 @@ struct opp_table *dev_pm_opp_get_opp_table(struct device *dev)
if (!IS_ERR(opp_table))
goto unlock;
- opp_table = _allocate_opp_table(dev);
+ opp_table = _allocate_opp_table(dev, index);
unlock:
mutex_unlock(&opp_table_lock);
return opp_table;
}
+
+struct opp_table *dev_pm_opp_get_opp_table(struct device *dev)
+{
+ return _opp_get_opp_table(dev, 0);
+}
EXPORT_SYMBOL_GPL(dev_pm_opp_get_opp_table);
+struct opp_table *dev_pm_opp_get_opp_table_indexed(struct device *dev,
+ int index)
+{
+ return _opp_get_opp_table(dev, index);
+}
+
static void _opp_table_kref_release(struct kref *kref)
{
struct opp_table *opp_table = container_of(kref, struct opp_table, kref);
diff --git a/drivers/opp/of.c b/drivers/opp/of.c
index 86222586f27b..1a9e1242a2a7 100644
--- a/drivers/opp/of.c
+++ b/drivers/opp/of.c
@@ -52,7 +52,8 @@ static struct opp_table *_managed_opp(const struct device_node *np)
return managed_table;
}
-void _of_init_opp_table(struct opp_table *opp_table, struct device *dev)
+void _of_init_opp_table(struct opp_table *opp_table, struct device *dev,
+ int index)
{
struct device_node *np;
@@ -378,7 +379,8 @@ free_opp:
}
/* Initializes OPP tables based on new bindings */
-static int _of_add_opp_table_v2(struct device *dev, struct device_node *opp_np)
+static int _of_add_opp_table_v2(struct device *dev, struct device_node *opp_np,
+ int index)
{
struct device_node *np;
struct opp_table *opp_table;
@@ -393,7 +395,7 @@ static int _of_add_opp_table_v2(struct device *dev, struct device_node *opp_np)
goto put_opp_table;
}
- opp_table = dev_pm_opp_get_opp_table(dev);
+ opp_table = dev_pm_opp_get_opp_table_indexed(dev, index);
if (!opp_table)
return -ENOMEM;
@@ -526,7 +528,7 @@ int dev_pm_opp_of_add_table(struct device *dev)
return _of_add_opp_table_v1(dev);
}
- ret = _of_add_opp_table_v2(dev, opp_np);
+ ret = _of_add_opp_table_v2(dev, opp_np, 0);
of_node_put(opp_np);
return ret;
@@ -574,7 +576,7 @@ again:
return -ENODEV;
}
- ret = _of_add_opp_table_v2(dev, opp_np);
+ ret = _of_add_opp_table_v2(dev, opp_np, index);
of_node_put(opp_np);
return ret;
diff --git a/drivers/opp/opp.h b/drivers/opp/opp.h
index 88e9f47aadf1..b235e76fc8cc 100644
--- a/drivers/opp/opp.h
+++ b/drivers/opp/opp.h
@@ -200,9 +200,9 @@ void _dev_pm_opp_cpumask_remove_table(const struct cpumask *cpumask, bool of, in
struct opp_table *_add_opp_table(struct device *dev);
#ifdef CONFIG_OF
-void _of_init_opp_table(struct opp_table *opp_table, struct device *dev);
+void _of_init_opp_table(struct opp_table *opp_table, struct device *dev, int index);
#else
-static inline void _of_init_opp_table(struct opp_table *opp_table, struct device *dev) {}
+static inline void _of_init_opp_table(struct opp_table *opp_table, struct device *dev, int index) {}
#endif
#ifdef CONFIG_DEBUG_FS