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-rw-r--r--Documentation/driver-model/devres.txt1
-rw-r--r--drivers/clk/clk.c52
-rw-r--r--include/linux/clk-provider.h13
3 files changed, 66 insertions, 0 deletions
diff --git a/Documentation/driver-model/devres.txt b/Documentation/driver-model/devres.txt
index 69f08c0f23a8..c180045eb43b 100644
--- a/Documentation/driver-model/devres.txt
+++ b/Documentation/driver-model/devres.txt
@@ -237,6 +237,7 @@ CLOCK
devm_clk_get()
devm_clk_put()
devm_clk_hw_register()
+ devm_of_clk_add_hw_provider()
DMA
dmam_alloc_coherent()
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index c8d83acda006..856d4858ae27 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -3177,6 +3177,37 @@ int of_clk_add_hw_provider(struct device_node *np,
}
EXPORT_SYMBOL_GPL(of_clk_add_hw_provider);
+static void devm_of_clk_release_provider(struct device *dev, void *res)
+{
+ of_clk_del_provider(*(struct device_node **)res);
+}
+
+int devm_of_clk_add_hw_provider(struct device *dev,
+ struct clk_hw *(*get)(struct of_phandle_args *clkspec,
+ void *data),
+ void *data)
+{
+ struct device_node **ptr, *np;
+ int ret;
+
+ ptr = devres_alloc(devm_of_clk_release_provider, sizeof(*ptr),
+ GFP_KERNEL);
+ if (!ptr)
+ return -ENOMEM;
+
+ np = dev->of_node;
+ ret = of_clk_add_hw_provider(np, get, data);
+ if (!ret) {
+ *ptr = np;
+ devres_add(dev, ptr);
+ } else {
+ devres_free(ptr);
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(devm_of_clk_add_hw_provider);
+
/**
* of_clk_del_provider() - Remove a previously registered clock provider
* @np: Device node pointer associated with clock provider
@@ -3198,6 +3229,27 @@ void of_clk_del_provider(struct device_node *np)
}
EXPORT_SYMBOL_GPL(of_clk_del_provider);
+static int devm_clk_provider_match(struct device *dev, void *res, void *data)
+{
+ struct device_node **np = res;
+
+ if (WARN_ON(!np || !*np))
+ return 0;
+
+ return *np == data;
+}
+
+void devm_of_clk_del_provider(struct device *dev)
+{
+ int ret;
+
+ ret = devres_release(dev, devm_of_clk_release_provider,
+ devm_clk_provider_match, dev->of_node);
+
+ WARN_ON(ret);
+}
+EXPORT_SYMBOL(devm_of_clk_del_provider);
+
static struct clk_hw *
__of_clk_get_hw_from_provider(struct of_clk_provider *provider,
struct of_phandle_args *clkspec)
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index 5100ec1b5d55..ba79d6186133 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -815,7 +815,12 @@ int of_clk_add_hw_provider(struct device_node *np,
struct clk_hw *(*get)(struct of_phandle_args *clkspec,
void *data),
void *data);
+int devm_of_clk_add_hw_provider(struct device *dev,
+ struct clk_hw *(*get)(struct of_phandle_args *clkspec,
+ void *data),
+ void *data);
void of_clk_del_provider(struct device_node *np);
+void devm_of_clk_del_provider(struct device *dev);
struct clk *of_clk_src_simple_get(struct of_phandle_args *clkspec,
void *data);
struct clk_hw *of_clk_hw_simple_get(struct of_phandle_args *clkspec,
@@ -847,7 +852,15 @@ static inline int of_clk_add_hw_provider(struct device_node *np,
{
return 0;
}
+static inline int devm_of_clk_add_hw_provider(struct device *dev,
+ struct clk_hw *(*get)(struct of_phandle_args *clkspec,
+ void *data),
+ void *data)
+{
+ return 0;
+}
static inline void of_clk_del_provider(struct device_node *np) {}
+static inline void devm_of_clk_del_provider(struct device *dev) {}
static inline struct clk *of_clk_src_simple_get(
struct of_phandle_args *clkspec, void *data)
{