[PATCH v2 4/6] ASoC: dwc: Fix DMA fifo_size calculation

[phucduc.bui@gmail.com]

From: bui duc phuc <phucduc.bui@gmail.com>

fifo_size should be the FIFO size in bytes (depth * width / 8), but
the code shifts by 8 instead of 3. For capture the parentheses also
make it always 0.

Use depth * width / 8 for both directions.

Fixes: 52ea7c0543f8 ("ASoC: dwc: i2s: Add StarFive JH7110 SoC support")
Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
---
 sound/soc/dwc/dwc-i2s.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/sound/soc/dwc/dwc-i2s.c b/sound/soc/dwc/dwc-i2s.c
index c5773f191db7..b0d3413c27d2 100644
--- a/sound/soc/dwc/dwc-i2s.c
+++ b/sound/soc/dwc/dwc-i2s.c
@@ -664,14 +664,14 @@ static int dw_configure_dai_by_pd(struct dw_i2s_dev *dev,
 			idx2 = COMP1_TX_WORDSIZE_0(comp1);
 			dev->play_dma_data.dt.addr = res->start + I2S_TXDMA;
 			dev->play_dma_data.dt.fifo_size = dev->fifo_th * 2 *
-				(fifo_width[idx2]) >> 8;
+							  fifo_width[idx2] / 8;
 			dev->play_dma_data.dt.maxburst = 16;
 		}
 		if (COMP1_RX_ENABLED(comp1)) {
 			idx2 = COMP2_RX_WORDSIZE_0(comp2);
 			dev->capture_dma_data.dt.addr = res->start + I2S_RXDMA;
 			dev->capture_dma_data.dt.fifo_size = dev->fifo_th * 2 *
-				(fifo_width[idx2] >> 8);
+							     fifo_width[idx2] / 8;
 			dev->capture_dma_data.dt.maxburst = 16;
 		}
 	} else {
@@ -711,7 +711,7 @@ static int dw_configure_dai_by_dt(struct dw_i2s_dev *dev,
 		dev->capability |= DWC_I2S_PLAY;
 		dev->play_dma_data.dt.addr = res->start + I2S_TXDMA;
 		dev->play_dma_data.dt.fifo_size = fifo_depth *
-			(fifo_width[idx2]) >> 8;
+						  fifo_width[idx2] / 8;
 		dev->play_dma_data.dt.maxburst = 16;
 	}
 	if (COMP1_RX_ENABLED(comp1)) {
@@ -720,7 +720,7 @@ static int dw_configure_dai_by_dt(struct dw_i2s_dev *dev,
 		dev->capability |= DWC_I2S_RECORD;
 		dev->capture_dma_data.dt.addr = res->start + I2S_RXDMA;
 		dev->capture_dma_data.dt.fifo_size = fifo_depth *
-			(fifo_width[idx2] >> 8);
+						     fifo_width[idx2] / 8;
 		dev->capture_dma_data.dt.maxburst = 16;
 	}
 
-- 
2.43.0