diff options
Diffstat (limited to 'drivers/clk/clk.c')
-rw-r--r-- | drivers/clk/clk.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index b6495a1..647d056 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -3275,6 +3275,37 @@ 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 @@ -3296,6 +3327,27 @@ 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) |