On Mon, Dec 05, 2016 at 05:23:20AM +0000, Kuninori Morimoto wrote:
>
> From: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
>
> Some driver is using this type of DT bindings for clock (more detail,
> see ${LINUX}/Documentation/devicetree/bindings/sound/simple-card.txt).
>
> sound_soc {
> ...
> cpu {
> clocks = <&xxx>;
> ...
> };
> codec {
> clocks = <&xxx>;
> ...
> };
> };
>
> Current driver in this case uses of_clk_get() for each node, but there
> is no devm_of_clk_get() today.
> OTOH, the problem of having devm_of_clk_get() is that it encourages the
> use of of_clk_get() when clk_get() is more desirable.
>
> Thus, this patch adds new devm_get_clk_from_chile() which explicitly
> reads as get a clock from a child node of this device.
> By this function, we can also use this type of DT bindings
>
> sound_soc {
> clocks = <&xxx>, <&xxx>;
> clock-names = "cpu", "codec";
> ...
> cpu {
> ...
> };
> codec {
> ...
> };
> };
>
> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
This looks lots better, thanks.
Acked-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxx>
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