On Tue, Feb 24, 2015 at 12:54:16AM +0000, Kuninori Morimoto wrote:
> From: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
>
> Current DMAEngine implementation of DT bindings can't support
> DT subnode. This patch export symbols of of_dma_request_slave_channel()
> for subnode DMA DT bingings.
>
> ex)
>
> rcar_sound: rcar_sound@ec500000 {
> ...
> rcar_sound,dvc {
> dvc0: dvc@0 {
> dmas = <&audma0 0xbc>;
> dma-names = "tx";
> };
> dvc1: dvc@1 {
> dmas = <&audma0 0xbe>;
> dma-names = "tx";
> };
> };
> ...
> };
>
> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
> ---
> v2 -> v3
>
> - don't remove export from of_dma.h
>
> drivers/dma/of-dma.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/dma/of-dma.c b/drivers/dma/of-dma.c
> index ca31f1b..cbd4a8a 100644
> --- a/drivers/dma/of-dma.c
> +++ b/drivers/dma/of-dma.c
> @@ -194,6 +194,7 @@ struct dma_chan *of_dma_request_slave_channel(struct device_node *np,
>
> return ERR_PTR(ret_no_channel);
> }
> +EXPORT_SYMBOL_GPL(of_dma_request_slave_channel);
>
> /**
> * of_dma_simple_xlate - Simple DMA engine translation function
Typically you should post whole series. Anyway, i am okay with this patch,
how do you want to merge this, should i pick it up or everything goes thru
ASoC tree or something else?
--
~Vinod
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