ASoC: qcom: rename rdma_ch_bit_map to dma_ch_bit_map

rdma_ch_bit_map can be reused for wrdma channel allocations as wrdma
channel numbering start after rdma channel numbers.
With capture support referring rdma_ch_bit_map for wrdma channel allocation
is confusing, so renaming rdma_ch_bit_map to dma_ch_bit_map makes sense.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Acked-by: Kenneth Westfield <kwestfie@codeaurora.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/qcom/lpass-apq8016.c

@@ -137,20 +137,20 @@ static int apq8016_lpass_alloc_dma_channel(struct lpass_data *drvdata,
 					   int direction)
 {
 	struct lpass_variant *v = drvdata->variant;
-	int chan = find_first_zero_bit(&drvdata->rdma_ch_bit_map,
+	int chan = find_first_zero_bit(&drvdata->dma_ch_bit_map,
 					v->rdma_channels);
 
 	if (chan >= v->rdma_channels)
 		return -EBUSY;
 
-	set_bit(chan, &drvdata->rdma_ch_bit_map);
+	set_bit(chan, &drvdata->dma_ch_bit_map);
 
 	return chan;
 }
 
 static int apq8016_lpass_free_dma_channel(struct lpass_data *drvdata, int chan)
 {
-	clear_bit(chan, &drvdata->rdma_ch_bit_map);
+	clear_bit(chan, &drvdata->dma_ch_bit_map);
 
 	return 0;
 }

sound/soc/qcom/lpass.h

@@ -50,7 +50,7 @@ struct lpass_data {
 	struct lpass_variant *variant;
 
 	/* bit map to keep track of static channel allocations */
-	unsigned long rdma_ch_bit_map;
+	unsigned long dma_ch_bit_map;
 
 	/* used it for handling interrupt per dma channel */
 	struct snd_pcm_substream *substream[LPASS_MAX_DMA_CHANNELS];