[alsa-devel] [RFC PATCH 10/14] ASoC: qcom: add bit map to track static dma channel allocations

[Srinivas Kandagatla]

This patch adds dma channel bit mask to lpass data to keep track of dma
channel allocations. This flag would be used in apq8016 lpass driver.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla at linaro.org>
---
 sound/soc/qcom/lpass.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/soc/qcom/lpass.h b/sound/soc/qcom/lpass.h
index c3016fe..82708d1 100644
--- a/sound/soc/qcom/lpass.h
+++ b/sound/soc/qcom/lpass.h
@@ -49,6 +49,9 @@ struct lpass_data {
 	/* SOC specific variations in the LPASS IP integration */
 	struct lpass_variant *variant;
 
+	/* bit map to keep track of static channel allocations */
+	unsigned long rdma_ch_bit_map;
+
 	/* used it for handling interrupt per dma channel */
 	struct snd_pcm_substream *substream[LPASS_MAX_DMA_CHANNELS];
 };
-- 
1.9.1