[alsa-devel] [PATCH 01/28 v3] dmaengine: export symbol of of_dma_request_slave_channel()

[Kuninori Morimoto]

From: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>

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 at ec500000 {
        ...
        rcar_sound,dvc {
                dvc0: dvc at 0 {
                        dmas = <&audma0 0xbc>;
                        dma-names = "tx";
                };
                dvc1: dvc at 1 {
                        dmas = <&audma0 0xbe>;
                        dma-names = "tx";
                };
        };
        ...
};

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
---
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
-- 
1.7.9.5