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clk: composite: add devm_clk_hw_register_composite_pdata()

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This will simplify drivers which would only unregister the clk in their
remove() op.

Signed-off-by: Michael Walle <michael@walle.cc>
Link: https://lore.kernel.org/r/20201105192746.19564-3-michael@walle.cc
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This commit is contained in:
Michael Walle 2020-11-05 20:27:45 +01:00 committed by Stephen Boyd
parent e81bed419f
commit 0eba770790
2 changed files with 57 additions and 0 deletions
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50
drivers/clk/clk-composite.c
View File

@ -4,6 +4,7 @@
*/
#include <linux/clk-provider.h>
#include <linux/device.h>
#include <linux/err.h>
#include <linux/slab.h>
@ -405,3 +406,52 @@ void clk_hw_unregister_composite(struct clk_hw *hw)
kfree(composite);
}
EXPORT_SYMBOL_GPL(clk_hw_unregister_composite);
static void devm_clk_hw_release_composite(struct device *dev, void *res)
{
clk_hw_unregister_composite(*(struct clk_hw **)res);
}
static struct clk_hw *__devm_clk_hw_register_composite(struct device *dev,
const char *name, const char * const *parent_names,
const struct clk_parent_data *pdata, int num_parents,
struct clk_hw *mux_hw, const struct clk_ops *mux_ops,
struct clk_hw *rate_hw, const struct clk_ops *rate_ops,
struct clk_hw *gate_hw, const struct clk_ops *gate_ops,
unsigned long flags)
{
struct clk_hw **ptr, *hw;
ptr = devres_alloc(devm_clk_hw_release_composite, sizeof(*ptr),
GFP_KERNEL);
if (!ptr)
return ERR_PTR(-ENOMEM);
hw = __clk_hw_register_composite(dev, name, parent_names, pdata,
num_parents, mux_hw, mux_ops, rate_hw,
rate_ops, gate_hw, gate_ops, flags);
if (!IS_ERR(hw)) {
*ptr = hw;
devres_add(dev, ptr);
} else {
devres_free(ptr);
}
return hw;
}
struct clk_hw *devm_clk_hw_register_composite_pdata(struct device *dev,
const char *name,
const struct clk_parent_data *parent_data,
int num_parents,
struct clk_hw *mux_hw, const struct clk_ops *mux_ops,
struct clk_hw *rate_hw, const struct clk_ops *rate_ops,
struct clk_hw *gate_hw, const struct clk_ops *gate_ops,
unsigned long flags)
{
return __devm_clk_hw_register_composite(dev, name, NULL, parent_data,
num_parents, mux_hw, mux_ops,
rate_hw, rate_ops, gate_hw,
gate_ops, flags);
}

7
include/linux/clk-provider.h
View File

@ -1062,6 +1062,13 @@ struct clk_hw *clk_hw_register_composite_pdata(struct device *dev,
struct clk_hw *rate_hw, const struct clk_ops *rate_ops,
struct clk_hw *gate_hw, const struct clk_ops *gate_ops,
unsigned long flags);
struct clk_hw *devm_clk_hw_register_composite_pdata(struct device *dev,
const char *name, const struct clk_parent_data *parent_data,
int num_parents,
struct clk_hw *mux_hw, const struct clk_ops *mux_ops,
struct clk_hw *rate_hw, const struct clk_ops *rate_ops,
struct clk_hw *gate_hw, const struct clk_ops *gate_ops,
unsigned long flags);
void clk_hw_unregister_composite(struct clk_hw *hw);
struct clk *clk_register(struct device *dev, struct clk_hw *hw);