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

From: Srinivas Kandagatla
Date: Thu Apr 30 2015 - 13:18:09 EST


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@xxxxxxxxxx>
---
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

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