ASoC: qcom: add bit map to track static dma channel allocations

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.

Tested-by: Kenneth Westfield <kwestfie@codeaurora.org>
Acked-by: Kenneth Westfield <kwestfie@codeaurora.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/qcom/lpass.h b/sound/soc/qcom/lpass.h
index d572e7b8d5902326030959279fa21c57e49e38aa..deecae9f64f91bc7b0af2f6db6e35ac4efbc1275 100644 (file)
--- 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];
 };