ASoC: amd: dma driver changes for bt i2s instance

With in ACP, There are three I2S controllers can be
configured/enabled ( I2S SP, I2S MICSP, I2S BT).
Default enabled I2S controller instance is I2S SP.
This patch provides required changes to support I2S BT
controller Instance.

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-da7219-max98357a.c b/sound/soc/amd/acp-da7219-max98357a.c
index 133139d..ccddc66 100644 (file)
--- a/sound/soc/amd/acp-da7219-max98357a.c
+++ b/sound/soc/amd/acp-da7219-max98357a.c
@@ -36,6 +36,7 @@
 #include <linux/input.h>
 #include <linux/acpi.h>
 
+#include "acp.h"
 #include "../codecs/da7219.h"
 #include "../codecs/da7219-aad.h"
 
@@ -44,6 +45,7 @@
 
 static struct snd_soc_jack cz_jack;
 static struct clk *da7219_dai_clk;
+extern int bt_uart_enable;
 
 static int cz_da7219_init(struct snd_soc_pcm_runtime *rtd)
 {
@@ -132,6 +134,9 @@ static const struct snd_pcm_hw_constraint_list constraints_channels = {
 static int cz_da7219_startup(struct snd_pcm_substream *substream)
 {
        struct snd_pcm_runtime *runtime = substream->runtime;
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_card *card = rtd->card;
+       struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
 
        /*
         * On this platform for PCM device we support stereo
@@ -143,6 +148,7 @@ static int cz_da7219_startup(struct snd_pcm_substream *substream)
        snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
                                   &constraints_rates);
 
+       machine->i2s_instance = I2S_BT_INSTANCE;
        return da7219_clk_enable(substream);
 }
 
@@ -153,6 +159,11 @@ static void cz_da7219_shutdown(struct snd_pcm_substream *substream)
 
 static int cz_max_startup(struct snd_pcm_substream *substream)
 {
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_card *card = rtd->card;
+       struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
+
+       machine->i2s_instance = I2S_SP_INSTANCE;
        return da7219_clk_enable(substream);
 }
 
@@ -163,6 +174,11 @@ static void cz_max_shutdown(struct snd_pcm_substream *substream)
 
 static int cz_dmic_startup(struct snd_pcm_substream *substream)
 {
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_card *card = rtd->card;
+       struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
+
+       machine->i2s_instance = I2S_SP_INSTANCE;
        return da7219_clk_enable(substream);
 }
 
@@ -266,10 +282,16 @@ static int cz_probe(struct platform_device *pdev)
 {
        int ret;
        struct snd_soc_card *card;
+       struct acp_platform_info *machine;
 
+       machine = devm_kzalloc(&pdev->dev, sizeof(struct acp_platform_info),
+                              GFP_KERNEL);
+       if (!machine)
+               return -ENOMEM;
        card = &cz_card;
        cz_card.dev = &pdev->dev;
        platform_set_drvdata(pdev, card);
+       snd_soc_card_set_drvdata(card, machine);
        ret = devm_snd_soc_register_card(&pdev->dev, &cz_card);
        if (ret) {
                dev_err(&pdev->dev,
@@ -277,6 +299,8 @@ static int cz_probe(struct platform_device *pdev)
                                cz_card.name, ret);
                return ret;
        }
+       bt_uart_enable = !device_property_read_bool(&pdev->dev,
+                                                   "bt-pad-enable");
        return 0;
 }
 

diff --git a/sound/soc/amd/acp-pcm-dma.c b/sound/soc/amd/acp-pcm-dma.c
index 1c44b26..ac32dea 100644 (file)
--- a/sound/soc/amd/acp-pcm-dma.c
+++ b/sound/soc/amd/acp-pcm-dma.c
@@ -37,12 +37,14 @@
 #define MAX_BUFFER (PLAYBACK_MAX_PERIOD_SIZE * PLAYBACK_MAX_NUM_PERIODS)
 #define MIN_BUFFER MAX_BUFFER
 
-#define ST_PLAYBACK_MAX_PERIOD_SIZE 8192
+#define ST_PLAYBACK_MAX_PERIOD_SIZE 4096
 #define ST_CAPTURE_MAX_PERIOD_SIZE  ST_PLAYBACK_MAX_PERIOD_SIZE
 #define ST_MAX_BUFFER (ST_PLAYBACK_MAX_PERIOD_SIZE * PLAYBACK_MAX_NUM_PERIODS)
 #define ST_MIN_BUFFER ST_MAX_BUFFER
 
 #define DRV_NAME "acp_audio_dma"
+bool bt_uart_enable = true;
+EXPORT_SYMBOL(bt_uart_enable);
 
 static const struct snd_pcm_hardware acp_pcm_hardware_playback = {
        .info = SNDRV_PCM_INFO_INTERLEAVED |
@@ -357,6 +359,9 @@ static void acp_dma_start(void __iomem *acp_mmio,
        case ACP_TO_I2S_DMA_CH_NUM:
        case ACP_TO_SYSRAM_CH_NUM:
        case I2S_TO_ACP_DMA_CH_NUM:
+       case ACP_TO_I2S_DMA_BT_INSTANCE_CH_NUM:
+       case ACP_TO_SYSRAM_BT_INSTANCE_CH_NUM:
+       case I2S_TO_ACP_DMA_BT_INSTANCE_CH_NUM:
                dma_ctrl |= ACP_DMA_CNTL_0__DMAChIOCEn_MASK;
                break;
        default:
@@ -519,6 +524,13 @@ static int acp_init(void __iomem *acp_mmio, u32 asic_type)
        val &= ~ACP_SOFT_RESET__SoftResetAud_MASK;
        acp_reg_write(val, acp_mmio, mmACP_SOFT_RESET);
 
+       /* For BT instance change pins from UART to BT */
+       if (!bt_uart_enable) {
+               val = acp_reg_read(acp_mmio, mmACP_BT_UART_PAD_SEL);
+               val |= ACP_BT_UART_PAD_SELECT_MASK;
+               acp_reg_write(val, acp_mmio, mmACP_BT_UART_PAD_SEL);
+       }
+
        /* initiailize Onion control DAGB register */
        acp_reg_write(ACP_ONION_CNTL_DEFAULT, acp_mmio,
                      mmACP_AXI2DAGB_ONION_CNTL);
@@ -637,6 +649,24 @@ static irqreturn_t dma_irq_handler(int irq, void *arg)
                              acp_mmio, mmACP_EXTERNAL_INTR_STAT);
        }
 
+       if ((intr_flag & BIT(ACP_TO_I2S_DMA_BT_INSTANCE_CH_NUM)) != 0) {
+               valid_irq = true;
+               if (acp_reg_read(acp_mmio, mmACP_DMA_CUR_DSCR_9) ==
+                       PLAYBACK_START_DMA_DESCR_CH9)
+                       dscr_idx = PLAYBACK_END_DMA_DESCR_CH8;
+               else
+                       dscr_idx = PLAYBACK_START_DMA_DESCR_CH8;
+               config_acp_dma_channel(acp_mmio,
+                                      SYSRAM_TO_ACP_BT_INSTANCE_CH_NUM,
+                                      dscr_idx, 1, 0);
+               acp_dma_start(acp_mmio, SYSRAM_TO_ACP_BT_INSTANCE_CH_NUM,
+                             false);
+               snd_pcm_period_elapsed(irq_data->play_i2sbt_stream);
+               acp_reg_write((intr_flag &
+                             BIT(ACP_TO_I2S_DMA_BT_INSTANCE_CH_NUM)) << 16,
+                             acp_mmio, mmACP_EXTERNAL_INTR_STAT);
+       }
+
        if ((intr_flag & BIT(I2S_TO_ACP_DMA_CH_NUM)) != 0) {
                valid_irq = true;
                if (acp_reg_read(acp_mmio, mmACP_DMA_CUR_DSCR_15) ==
@@ -659,6 +689,31 @@ static irqreturn_t dma_irq_handler(int irq, void *arg)
                              acp_mmio, mmACP_EXTERNAL_INTR_STAT);
        }
 
+       if ((intr_flag & BIT(I2S_TO_ACP_DMA_BT_INSTANCE_CH_NUM)) != 0) {
+               valid_irq = true;
+               if (acp_reg_read(acp_mmio, mmACP_DMA_CUR_DSCR_11) ==
+                       CAPTURE_START_DMA_DESCR_CH11)
+                       dscr_idx = CAPTURE_END_DMA_DESCR_CH10;
+               else
+                       dscr_idx = CAPTURE_START_DMA_DESCR_CH10;
+               config_acp_dma_channel(acp_mmio,
+                                      ACP_TO_SYSRAM_BT_INSTANCE_CH_NUM,
+                                      dscr_idx, 1, 0);
+               acp_dma_start(acp_mmio, ACP_TO_SYSRAM_BT_INSTANCE_CH_NUM,
+                             false);
+               acp_reg_write((intr_flag &
+                             BIT(I2S_TO_ACP_DMA_BT_INSTANCE_CH_NUM)) << 16,
+                             acp_mmio, mmACP_EXTERNAL_INTR_STAT);
+       }
+
+       if ((intr_flag & BIT(ACP_TO_SYSRAM_BT_INSTANCE_CH_NUM)) != 0) {
+               valid_irq = true;
+               snd_pcm_period_elapsed(irq_data->capture_i2sbt_stream);
+               acp_reg_write((intr_flag &
+                             BIT(ACP_TO_SYSRAM_BT_INSTANCE_CH_NUM)) << 16,
+                             acp_mmio, mmACP_EXTERNAL_INTR_STAT);
+       }
+
        if (valid_irq)
                return IRQ_HANDLED;
        else
@@ -714,11 +769,11 @@ static int acp_dma_open(struct snd_pcm_substream *substream)
         * This enablement is not required for another stream, if current
         * stream is not closed
         */
-       if (!intr_data->play_i2ssp_stream && !intr_data->capture_i2ssp_stream)
+       if (!intr_data->play_i2ssp_stream && !intr_data->capture_i2ssp_stream &&
+           !intr_data->play_i2sbt_stream && !intr_data->capture_i2sbt_stream)
                acp_reg_write(1, adata->acp_mmio, mmACP_EXTERNAL_INTR_ENB);
 
        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-               intr_data->play_i2ssp_stream = substream;
                /*
                 * For Stoney, Memory gating is disabled,i.e SRAM Banks
                 * won't be turned off. The default state for SRAM banks is ON.
@@ -730,7 +785,6 @@ static int acp_dma_open(struct snd_pcm_substream *substream)
                                                        bank, true);
                }
        } else {
-               intr_data->capture_i2ssp_stream = substream;
                if (intr_data->asic_type != CHIP_STONEY) {
                        for (bank = 5; bank <= 8; bank++)
                                acp_set_sram_bank_state(intr_data->acp_mmio,
@@ -754,6 +808,8 @@ static int acp_dma_hw_params(struct snd_pcm_substream *substream,
        struct snd_soc_component *component = snd_soc_rtdcom_lookup(prtd,
                                                                    DRV_NAME);
        struct audio_drv_data *adata = dev_get_drvdata(component->dev);
+       struct snd_soc_card *card = prtd->card;
+       struct acp_platform_info *pinfo = snd_soc_card_get_drvdata(card);
 
        runtime = substream->runtime;
        rtd = runtime->private_data;
@@ -761,52 +817,109 @@ static int acp_dma_hw_params(struct snd_pcm_substream *substream,
        if (WARN_ON(!rtd))
                return -EINVAL;
 
+       rtd->i2s_instance = pinfo->i2s_instance;
        if (adata->asic_type == CHIP_STONEY) {
                val = acp_reg_read(adata->acp_mmio,
                                   mmACP_I2S_16BIT_RESOLUTION_EN);
-               if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-                       val |= ACP_I2S_SP_16BIT_RESOLUTION_EN;
-               else
-                       val |= ACP_I2S_MIC_16BIT_RESOLUTION_EN;
+               if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+                       switch (rtd->i2s_instance) {
+                       case I2S_BT_INSTANCE:
+                               val |= ACP_I2S_BT_16BIT_RESOLUTION_EN;
+                               break;
+                       case I2S_SP_INSTANCE:
+                       default:
+                               val |= ACP_I2S_SP_16BIT_RESOLUTION_EN;
+                       }
+               } else {
+                       switch (rtd->i2s_instance) {
+                       case I2S_BT_INSTANCE:
+                               val |= ACP_I2S_BT_16BIT_RESOLUTION_EN;
+                               break;
+                       case I2S_SP_INSTANCE:
+                       default:
+                               val |= ACP_I2S_MIC_16BIT_RESOLUTION_EN;
+                       }
+               }
                acp_reg_write(val, adata->acp_mmio,
                              mmACP_I2S_16BIT_RESOLUTION_EN);
        }
 
        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-               switch (adata->asic_type) {
-               case CHIP_STONEY:
-                       rtd->pte_offset = ACP_ST_PLAYBACK_PTE_OFFSET;
+               switch (rtd->i2s_instance) {
+               case I2S_BT_INSTANCE:
+                       rtd->pte_offset = ACP_ST_BT_PLAYBACK_PTE_OFFSET;
+                       rtd->ch1 = SYSRAM_TO_ACP_BT_INSTANCE_CH_NUM;
+                       rtd->ch2 = ACP_TO_I2S_DMA_BT_INSTANCE_CH_NUM;
+                       rtd->sram_bank = ACP_SRAM_BANK_3_ADDRESS;
+                       rtd->destination = TO_BLUETOOTH;
+                       rtd->dma_dscr_idx_1 = PLAYBACK_START_DMA_DESCR_CH8;
+                       rtd->dma_dscr_idx_2 = PLAYBACK_START_DMA_DESCR_CH9;
+                       rtd->byte_cnt_high_reg_offset =
+                                       mmACP_I2S_BT_TRANSMIT_BYTE_CNT_HIGH;
+                       rtd->byte_cnt_low_reg_offset =
+                                       mmACP_I2S_BT_TRANSMIT_BYTE_CNT_LOW;
+                       adata->play_i2sbt_stream = substream;
                        break;
+               case I2S_SP_INSTANCE:
                default:
-                       rtd->pte_offset = ACP_PLAYBACK_PTE_OFFSET;
+                       switch (adata->asic_type) {
+                       case CHIP_STONEY:
+                               rtd->pte_offset = ACP_ST_PLAYBACK_PTE_OFFSET;
+                               break;
+                       default:
+                               rtd->pte_offset = ACP_PLAYBACK_PTE_OFFSET;
+                       }
+                       rtd->ch1 = SYSRAM_TO_ACP_CH_NUM;
+                       rtd->ch2 = ACP_TO_I2S_DMA_CH_NUM;
+                       rtd->sram_bank = ACP_SRAM_BANK_1_ADDRESS;
+                       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;
+                       adata->play_i2ssp_stream = substream;
                }
-               rtd->ch1 = SYSRAM_TO_ACP_CH_NUM;
-               rtd->ch2 = ACP_TO_I2S_DMA_CH_NUM;
-               rtd->sram_bank = ACP_SRAM_BANK_1_ADDRESS;
-               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 {
-               switch (adata->asic_type) {
-               case CHIP_STONEY:
-                       rtd->pte_offset = ACP_ST_CAPTURE_PTE_OFFSET;
-                       rtd->sram_bank = ACP_SRAM_BANK_2_ADDRESS;
+               switch (rtd->i2s_instance) {
+               case I2S_BT_INSTANCE:
+                       rtd->pte_offset = ACP_ST_BT_CAPTURE_PTE_OFFSET;
+                       rtd->ch1 = ACP_TO_SYSRAM_BT_INSTANCE_CH_NUM;
+                       rtd->ch2 = I2S_TO_ACP_DMA_BT_INSTANCE_CH_NUM;
+                       rtd->sram_bank = ACP_SRAM_BANK_4_ADDRESS;
+                       rtd->destination = FROM_BLUETOOTH;
+                       rtd->dma_dscr_idx_1 = CAPTURE_START_DMA_DESCR_CH10;
+                       rtd->dma_dscr_idx_2 = CAPTURE_START_DMA_DESCR_CH11;
+                       rtd->byte_cnt_high_reg_offset =
+                                       mmACP_I2S_BT_RECEIVE_BYTE_CNT_HIGH;
+                       rtd->byte_cnt_low_reg_offset =
+                                       mmACP_I2S_BT_RECEIVE_BYTE_CNT_LOW;
+                       adata->capture_i2sbt_stream = substream;
                        break;
+               case I2S_SP_INSTANCE:
                default:
                        rtd->pte_offset = ACP_CAPTURE_PTE_OFFSET;
-                       rtd->sram_bank = ACP_SRAM_BANK_5_ADDRESS;
+                       rtd->ch1 = ACP_TO_SYSRAM_CH_NUM;
+                       rtd->ch2 = I2S_TO_ACP_DMA_CH_NUM;
+                       switch (adata->asic_type) {
+                       case CHIP_STONEY:
+                               rtd->pte_offset = ACP_ST_CAPTURE_PTE_OFFSET;
+                               rtd->sram_bank = ACP_SRAM_BANK_2_ADDRESS;
+                               break;
+                       default:
+                               rtd->pte_offset = ACP_CAPTURE_PTE_OFFSET;
+                               rtd->sram_bank = ACP_SRAM_BANK_5_ADDRESS;
+                       }
+                       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;
+                       adata->capture_i2ssp_stream = substream;
                }
-               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);
@@ -999,24 +1112,39 @@ static int acp_dma_close(struct snd_pcm_substream *substream)
        struct audio_drv_data *adata = dev_get_drvdata(component->dev);
 
        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-               adata->play_i2ssp_stream = NULL;
-               /*
-                * For Stoney, Memory gating is disabled,i.e SRAM Banks
-                * won't be turned off. The default state for SRAM banks is ON.
-                * Setting SRAM bank state code skipped for STONEY platform.
-                * added condition checks for Carrizo platform only
-                */
-               if (adata->asic_type != CHIP_STONEY) {
-                       for (bank = 1; bank <= 4; bank++)
-                               acp_set_sram_bank_state(adata->acp_mmio, bank,
-                                                       false);
+               switch (rtd->i2s_instance) {
+               case I2S_BT_INSTANCE:
+                       adata->play_i2sbt_stream = NULL;
+                       break;
+               case I2S_SP_INSTANCE:
+               default:
+                       adata->play_i2ssp_stream = NULL;
+                       /*
+                        * For Stoney, Memory gating is disabled,i.e SRAM Banks
+                        * won't be turned off. The default state for SRAM banks
+                        * is ON.Setting SRAM bank state code skipped for STONEY
+                        * platform. Added condition checks for Carrizo platform
+                        * only.
+                        */
+                       if (adata->asic_type != CHIP_STONEY) {
+                               for (bank = 1; bank <= 4; bank++)
+                                       acp_set_sram_bank_state(adata->acp_mmio,
+                                                               bank, false);
+                       }
                }
        } else  {
-               adata->capture_i2ssp_stream = NULL;
-               if (adata->asic_type != CHIP_STONEY) {
-                       for (bank = 5; bank <= 8; bank++)
-                               acp_set_sram_bank_state(adata->acp_mmio, bank,
-                                                       false);
+               switch (rtd->i2s_instance) {
+               case I2S_BT_INSTANCE:
+                       adata->capture_i2sbt_stream = NULL;
+                       break;
+               case I2S_SP_INSTANCE:
+               default:
+                       adata->capture_i2ssp_stream = NULL;
+                       if (adata->asic_type != CHIP_STONEY) {
+                               for (bank = 5; bank <= 8; bank++)
+                                       acp_set_sram_bank_state(adata->acp_mmio,
+                                                               bank, false);
+                       }
                }
        }
 
@@ -1024,7 +1152,8 @@ static int acp_dma_close(struct snd_pcm_substream *substream)
         * Disable ACP irq, when the current stream is being closed and
         * another stream is also not active.
         */
-       if (!adata->play_i2ssp_stream && !adata->capture_i2ssp_stream)
+       if (!adata->play_i2ssp_stream && !adata->capture_i2ssp_stream &&
+           !adata->play_i2sbt_stream && !adata->capture_i2sbt_stream)
                acp_reg_write(0, adata->acp_mmio, mmACP_EXTERNAL_INTR_ENB);
        kfree(rtd);
        return 0;
@@ -1078,6 +1207,8 @@ static int acp_audio_probe(struct platform_device *pdev)
 
        audio_drv_data->play_i2ssp_stream = NULL;
        audio_drv_data->capture_i2ssp_stream = NULL;
+       audio_drv_data->play_i2sbt_stream = NULL;
+       audio_drv_data->capture_i2sbt_stream = NULL;
 
        audio_drv_data->asic_type =  *pdata;
 
@@ -1134,6 +1265,7 @@ static int acp_pcm_resume(struct device *dev)
 {
        u16 bank;
        int status;
+       struct audio_substream_data *rtd;
        struct audio_drv_data *adata = dev_get_drvdata(dev);
 
        status = acp_init(adata->acp_mmio, adata->asic_type);
@@ -1153,9 +1285,8 @@ static int acp_pcm_resume(struct device *dev)
                                acp_set_sram_bank_state(adata->acp_mmio, bank,
                                                        true);
                }
-               config_acp_dma(adata->acp_mmio,
-                              adata->play_i2ssp_stream->runtime->private_data,
-                              adata->asic_type);
+               rtd = adata->play_i2ssp_stream->runtime->private_data;
+               config_acp_dma(adata->acp_mmio, rtd, adata->asic_type);
        }
        if (adata->capture_i2ssp_stream &&
            adata->capture_i2ssp_stream->runtime) {
@@ -1164,9 +1295,20 @@ static int acp_pcm_resume(struct device *dev)
                                acp_set_sram_bank_state(adata->acp_mmio, bank,
                                                        true);
                }
-               config_acp_dma(adata->acp_mmio,
-                              adata->capture_i2ssp_stream->runtime->private_data,
-                              adata->asic_type);
+               rtd =  adata->capture_i2ssp_stream->runtime->private_data;
+               config_acp_dma(adata->acp_mmio, rtd, adata->asic_type);
+       }
+       if (adata->asic_type != CHIP_CARRIZO) {
+               if (adata->play_i2sbt_stream &&
+                   adata->play_i2sbt_stream->runtime) {
+                       rtd = adata->play_i2sbt_stream->runtime->private_data;
+                       config_acp_dma(adata->acp_mmio, rtd, adata->asic_type);
+               }
+               if (adata->capture_i2sbt_stream &&
+                   adata->capture_i2sbt_stream->runtime) {
+                       rtd = adata->capture_i2sbt_stream->runtime->private_data;
+                       config_acp_dma(adata->acp_mmio, rtd, adata->asic_type);
+               }
        }
        acp_reg_write(1, adata->acp_mmio, mmACP_EXTERNAL_INTR_ENB);
        return 0;

diff --git a/sound/soc/amd/acp.h b/sound/soc/amd/acp.h
index 62695ed..9cd3e96 100644 (file)
--- a/sound/soc/amd/acp.h
+++ b/sound/soc/amd/acp.h
@@ -13,6 +13,8 @@
 /* Playback and Capture Offset for Stoney */
 #define ACP_ST_PLAYBACK_PTE_OFFSET     0x04
 #define ACP_ST_CAPTURE_PTE_OFFSET      0x00
+#define ACP_ST_BT_PLAYBACK_PTE_OFFSET  0x08
+#define ACP_ST_BT_CAPTURE_PTE_OFFSET   0x0c
 
 #define ACP_GARLIC_CNTL_DEFAULT                        0x00000FB4
 #define ACP_ONION_CNTL_DEFAULT                 0x00000FB4
@@ -46,8 +48,13 @@
 
 #define TO_ACP_I2S_1   0x2
 #define TO_ACP_I2S_2   0x4
+#define TO_BLUETOOTH   0x3
 #define FROM_ACP_I2S_1 0xa
 #define FROM_ACP_I2S_2 0xb
+#define FROM_BLUETOOTH 0xb
+
+#define I2S_SP_INSTANCE                 0x01
+#define I2S_BT_INSTANCE                 0x02
 
 #define ACP_TILE_ON_MASK                0x03
 #define ACP_TILE_OFF_MASK               0x02
@@ -68,6 +75,14 @@
 #define ACP_TO_SYSRAM_CH_NUM 14
 #define I2S_TO_ACP_DMA_CH_NUM 15
 
+/* Playback DMA Channels for I2S BT instance */
+#define SYSRAM_TO_ACP_BT_INSTANCE_CH_NUM  8
+#define ACP_TO_I2S_DMA_BT_INSTANCE_CH_NUM 9
+
+/* Capture DMA Channels for I2S BT Instance */
+#define ACP_TO_SYSRAM_BT_INSTANCE_CH_NUM 10
+#define I2S_TO_ACP_DMA_BT_INSTANCE_CH_NUM 11
+
 #define NUM_DSCRS_PER_CHANNEL 2
 
 #define PLAYBACK_START_DMA_DESCR_CH12 0
@@ -80,9 +95,23 @@
 #define CAPTURE_START_DMA_DESCR_CH15 6
 #define CAPTURE_END_DMA_DESCR_CH15 7
 
+/* I2S BT Instance DMA Descriptors */
+#define PLAYBACK_START_DMA_DESCR_CH8 8
+#define PLAYBACK_END_DMA_DESCR_CH8 9
+#define PLAYBACK_START_DMA_DESCR_CH9 10
+#define PLAYBACK_END_DMA_DESCR_CH9 11
+
+#define CAPTURE_START_DMA_DESCR_CH10 12
+#define CAPTURE_END_DMA_DESCR_CH10 13
+#define CAPTURE_START_DMA_DESCR_CH11 14
+#define CAPTURE_END_DMA_DESCR_CH11 15
+
 #define mmACP_I2S_16BIT_RESOLUTION_EN       0x5209
 #define ACP_I2S_MIC_16BIT_RESOLUTION_EN 0x01
 #define ACP_I2S_SP_16BIT_RESOLUTION_EN 0x02
+#define ACP_I2S_BT_16BIT_RESOLUTION_EN 0x04
+#define ACP_BT_UART_PAD_SELECT_MASK    0x1
+
 enum acp_dma_priority_level {
        /* 0x0 Specifies the DMA channel is given normal priority */
        ACP_DMA_PRIORITY_LEVEL_NORMAL = 0x0,
@@ -95,6 +124,7 @@ struct audio_substream_data {
        struct page *pg;
        unsigned int order;
        u16 num_of_pages;
+       u16 i2s_instance;
        u16 direction;
        u16 ch1;
        u16 ch2;
@@ -113,10 +143,20 @@ struct audio_substream_data {
 struct audio_drv_data {
        struct snd_pcm_substream *play_i2ssp_stream;
        struct snd_pcm_substream *capture_i2ssp_stream;
+       struct snd_pcm_substream *play_i2sbt_stream;
+       struct snd_pcm_substream *capture_i2sbt_stream;
        void __iomem *acp_mmio;
        u32 asic_type;
 };
 
+/*
+ * this structure used for platform data transfer between machine driver
+ * and dma driver
+ */
+struct acp_platform_info {
+       u16 i2s_instance;
+};
+
 union acp_dma_count {
        struct {
        u32 low;