lkml.org 
[lkml]   [2016]   [Jul]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [PATCH v2] clkdev: add devm_of_clk_get()
Date
Quoting Kuninori Morimoto (2016-07-03 18:36:50)
> +struct clk *devm_of_clk_get(struct device *dev,
> + struct device_node *np, int index)

Any reason not to use devm_clk_get? Why do we need this helper?

Thanks,
Mike

> +{
> + struct clk **ptr, *clk;
> +
> + ptr = devres_alloc(devm_of_clk_release, sizeof(*ptr), GFP_KERNEL);
> + if (!ptr)
> + return ERR_PTR(-ENOMEM);
> +
> + clk = of_clk_get(np, index);
> + if (!IS_ERR(clk)) {
> + *ptr = clk;
> + devres_add(dev, ptr);
> + } else {
> + devres_free(ptr);
> + }
> +
> + return clk;
> +}
> +EXPORT_SYMBOL(devm_of_clk_get);
> +
> static struct clk *__of_clk_get_by_name(struct device_node *np,
> const char *dev_id,
> const char *name)
> diff --git a/include/linux/clk.h b/include/linux/clk.h
> index a89ba4e..33cd540 100644
> --- a/include/linux/clk.h
> +++ b/include/linux/clk.h
> @@ -502,6 +502,8 @@ struct of_phandle_args;
>
> #if defined(CONFIG_OF) && defined(CONFIG_COMMON_CLK)
> struct clk *of_clk_get(struct device_node *np, int index);
> +struct clk *devm_of_clk_get(struct device *dev,
> + struct device_node *np, int index);
> struct clk *of_clk_get_by_name(struct device_node *np, const char *name);
> struct clk *of_clk_get_from_provider(struct of_phandle_args *clkspec);
> #else
> @@ -509,6 +511,11 @@ static inline struct clk *of_clk_get(struct device_node *np, int index)
> {
> return ERR_PTR(-ENOENT);
> }
> +static inline struct clk *devm_of_clk_get(struct device *dev,
> + struct device_node *np, int index)
> +{
> + return ERR_PTR(-ENOENT);
> +}
> static inline struct clk *of_clk_get_by_name(struct device_node *np,
> const char *name)
> {
> --
> 1.9.1
>

\
 
 \ /
  Last update: 2016-07-07 03:21    [W:0.049 / U:6.360 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site