ASoC: amd: added byte count register offset variables to rtd

Added byte count register offset variables to audio_substream_data
structure. Modified dma pointer callback.

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/amd/acp-pcm-dma.c b/sound/soc/amd/acp-pcm-dma.c
index fa451d0..3dc3de1 100644 (file)
--- a/sound/soc/amd/acp-pcm-dma.c
+++ b/sound/soc/amd/acp-pcm-dma.c
@@ -793,12 +793,18 @@ static int acp_dma_hw_params(struct snd_pcm_substream *substream,
                rtd->destination = TO_ACP_I2S_1;
                rtd->dma_dscr_idx_1 = PLAYBACK_START_DMA_DESCR_CH12;
                rtd->dma_dscr_idx_2 = PLAYBACK_START_DMA_DESCR_CH13;
+               rtd->byte_cnt_high_reg_offset =
+                               mmACP_I2S_TRANSMIT_BYTE_CNT_HIGH;
+               rtd->byte_cnt_low_reg_offset = mmACP_I2S_TRANSMIT_BYTE_CNT_LOW;
        } else {
                rtd->ch1 = ACP_TO_SYSRAM_CH_NUM;
                rtd->ch2 = I2S_TO_ACP_DMA_CH_NUM;
                rtd->destination = FROM_ACP_I2S_1;
                rtd->dma_dscr_idx_1 = CAPTURE_START_DMA_DESCR_CH14;
                rtd->dma_dscr_idx_2 = CAPTURE_START_DMA_DESCR_CH15;
+               rtd->byte_cnt_high_reg_offset =
+                               mmACP_I2S_RECEIVED_BYTE_CNT_HIGH;
+               rtd->byte_cnt_low_reg_offset = mmACP_I2S_RECEIVED_BYTE_CNT_LOW;
        }
 
        size = params_buffer_bytes(params);
@@ -834,26 +840,15 @@ static int acp_dma_hw_free(struct snd_pcm_substream *substream)
        return snd_pcm_lib_free_pages(substream);
 }
 
-static u64 acp_get_byte_count(void __iomem *acp_mmio, int stream)
+static u64 acp_get_byte_count(struct audio_substream_data *rtd)
 {
-       union acp_dma_count playback_dma_count;
-       union acp_dma_count capture_dma_count;
-       u64 bytescount = 0;
+       union acp_dma_count byte_count;
 
-       if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
-               playback_dma_count.bcount.high = acp_reg_read(acp_mmio,
-                                       mmACP_I2S_TRANSMIT_BYTE_CNT_HIGH);
-               playback_dma_count.bcount.low  = acp_reg_read(acp_mmio,
-                                       mmACP_I2S_TRANSMIT_BYTE_CNT_LOW);
-               bytescount = playback_dma_count.bytescount;
-       } else {
-               capture_dma_count.bcount.high = acp_reg_read(acp_mmio,
-                                       mmACP_I2S_RECEIVED_BYTE_CNT_HIGH);
-               capture_dma_count.bcount.low  = acp_reg_read(acp_mmio,
-                                       mmACP_I2S_RECEIVED_BYTE_CNT_LOW);
-               bytescount = capture_dma_count.bytescount;
-       }
-       return bytescount;
+       byte_count.bcount.high = acp_reg_read(rtd->acp_mmio,
+                                             rtd->byte_cnt_high_reg_offset);
+       byte_count.bcount.low  = acp_reg_read(rtd->acp_mmio,
+                                             rtd->byte_cnt_low_reg_offset);
+       return byte_count.bytescount;
 }
 
 static snd_pcm_uframes_t acp_dma_pointer(struct snd_pcm_substream *substream)
@@ -869,7 +864,7 @@ static snd_pcm_uframes_t acp_dma_pointer(struct snd_pcm_substream *substream)
                return -EINVAL;
 
        buffersize = frames_to_bytes(runtime, runtime->buffer_size);
-       bytescount = acp_get_byte_count(rtd->acp_mmio, substream->stream);
+       bytescount = acp_get_byte_count(rtd);
 
        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
                if (bytescount > rtd->i2ssp_renderbytescount)
@@ -925,8 +920,7 @@ static int acp_dma_trigger(struct snd_pcm_substream *substream, int cmd)
        case SNDRV_PCM_TRIGGER_START:
        case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
        case SNDRV_PCM_TRIGGER_RESUME:
-               bytescount = acp_get_byte_count(rtd->acp_mmio,
-                                               substream->stream);
+               bytescount = acp_get_byte_count(rtd);
                if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
                        if (rtd->i2ssp_renderbytescount == 0)
                                rtd->i2ssp_renderbytescount = bytescount;

diff --git a/sound/soc/amd/acp.h b/sound/soc/amd/acp.h
index 5e25428..3b076c6 100644 (file)
--- a/sound/soc/amd/acp.h
+++ b/sound/soc/amd/acp.h
@@ -90,6 +90,8 @@ struct audio_substream_data {
        u16 destination;
        u16 dma_dscr_idx_1;
        u16 dma_dscr_idx_2;
+       u32 byte_cnt_high_reg_offset;
+       u32 byte_cnt_low_reg_offset;
        uint64_t size;
        u64 i2ssp_renderbytescount;
        u64 i2ssp_capturebytescount;