Re: [PATCH v3] clk: add devm_of_clk_get() and devm_of_clk_get_by_name() functions

From: Stephen Boyd
Date: Thu Oct 01 2015 - 14:05:40 EST


On 10/01, Paul Osmialowski wrote:
> From: Paul Osmialowski <pawelo@xxxxxxxxxxx>
>
> These two functions are added to ease management of clocks obtained
> from OF device nodes.
>
> They are particulary useful while iterating over DT subnodes using e.g.
> for_each_child_of_node(dev->of_node, child) in order do get resources
> (i.e. clocks) for subdevices defined by these DT subnodes.
>
> For example:
>
> some_device {
> compatible = "something"
> #address-cells = <1>;
> #size-cells = <1>;
> ranges;
>
> subdevice1: some_subdevice@some_address1 {
> reg = <0xsome_address1 0xsome_size>
> clocks = <&some_clock1>
> }
>
> subdevice2: some_subdevice@some_address2 {
> reg = <0xsome_address2 0xsome_size>
> clocks = <&some_clock2>
> }
> }
>
> Normally, I'd have to use of_clk_get() on each subdevice node and then
> worry about proper resource release myself.
>
> IMHO using devres infrastructure for this is far better. This patch adds
> missing functions needed to do it a better way.
>
> Signed-off-by: Paul Osmialowski <pawelo@xxxxxxxxxxx>

It sounds like your pinctrl binding will be rewritten so that
there isn't a need for this patch. Consider this patch rejected.

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