ASoC: ux500_pcm: Stop pretending that we support varying address widths

The Slave Config's addr_width attribute is populated by data_width of
dma_cfg, which in turn is derived from dma_params' data_size attribute
and that comes from the slot_width which is always 16 bits (2 Bytes).
We're cutting out the middle man here and just setting the DMA Slave
Config directly.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>

sound/soc/ux500/ux500_pcm.c

@@ -109,20 +109,19 @@ static int ux500_pcm_prepare_slave_config(struct snd_pcm_substream *substream,
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct ux500_msp_dma_params *dma_params;
-	struct stedma40_chan_cfg *dma_cfg;
 	int ret;
 
 	dma_params = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
-	dma_cfg = dma_params->dma_cfg;
 
 	ret = snd_hwparams_to_dma_slave_config(substream, params, slave_config);
 	if (ret)
 		return ret;
 
 	slave_config->dst_maxburst = 4;
-	slave_config->dst_addr_width = dma_cfg->dst_info.data_width;
 	slave_config->src_maxburst = 4;
-	slave_config->src_addr_width = dma_cfg->src_info.data_width;
+
+	slave_config->src_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
+	slave_config->dst_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
 
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
 		slave_config->dst_addr = dma_params->tx_rx_addr;