sound:dwc:i2s:Support 16bit playback and capture

Add 16bit playing and record but unsupport 8k rate.

Signed-off-by: Xingyu Wu <xingyu.wu@starfivetech.com>

diff --git a/sound/soc/dwc/dwc-i2s.c b/sound/soc/dwc/dwc-i2s.c
index 88042dd..d21ffc6 100755 (executable)
--- a/sound/soc/dwc/dwc-i2s.c
+++ b/sound/soc/dwc/dwc-i2s.c
@@ -255,6 +255,15 @@ static int dw_i2s_hw_params(struct snd_pcm_substream *substream,
 
        switch (params_format(params)) {
        case SNDRV_PCM_FORMAT_S16_LE:
+               if (params_rate(params) == 8000) {
+                       dev_err(dev->dev, "I2S: unsupported 8000 rate with S16_LE, Stereo.\n");
+                       return -EINVAL;
+               }
+
+               if (txrx == SNDRV_PCM_STREAM_PLAYBACK)
+                       dev->play_dma_data.dt.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
+               else
+                       dev->capture_dma_data.dt.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
                config->data_width = 16;
                dev->ccr = 0x00;
                dev->xfer_resolution = 0x02;
@@ -1018,6 +1027,9 @@ static int dw_configure_dai(struct dw_i2s_dev *dev,
                dw_i2s_dai->playback.channels_max =
                                1 << (COMP1_TX_CHANNELS(comp1) + 1);
                dw_i2s_dai->playback.formats = formats[idx];
+               for (;idx > 0; idx--)
+                       dw_i2s_dai->playback.formats |= formats[idx - 1];
+
                dw_i2s_dai->playback.rates = rates;
        }
 
@@ -1032,6 +1044,9 @@ static int dw_configure_dai(struct dw_i2s_dev *dev,
                dw_i2s_dai->capture.channels_max =
                                1 << (COMP1_RX_CHANNELS(comp1) + 1);
                dw_i2s_dai->capture.formats = formats[idx];
+               for (;idx > 0; idx--)
+                       dw_i2s_dai->capture.formats |= formats[idx - 1];
+
                dw_i2s_dai->capture.rates = rates;
        }