[alsa-devel] [PATCH 1/2] ASoC: dai: Provide interface for setting DMA data at probe time

Mark Brown broonie at kernel.org
Thu Oct 17 23:34:12 CEST 2013

From: Mark Brown <broonie at linaro.org>

Allow DMA data to be set at probe time for devices that can do that,
avoiding the need to do it every time we start a stream and supporting
non-DT dmaengine users using the helpers.

Signed-off-by: Mark Brown <broonie at linaro.org>
 include/sound/soc-dai.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h
index 1ce3685..800c101 100644
--- a/include/sound/soc-dai.h
+++ b/include/sound/soc-dai.h
@@ -286,6 +286,13 @@ static inline void snd_soc_dai_set_dma_data(struct snd_soc_dai *dai,
 		dai->capture_dma_data = data;
+static inline void snd_soc_dai_init_dma_data(struct snd_soc_dai *dai,
+					     void *playback, void *capture)
+	dai->playback_dma_data = playback;
+	dai->capture_dma_data = capture;
 static inline void snd_soc_dai_set_drvdata(struct snd_soc_dai *dai,
 		void *data)

More information about the Alsa-devel mailing list