26 files changed, 234 insertions, 145 deletions

diff --git a/sound/soc/atmel/atmel-pcm.c b/sound/soc/atmel/atmel-pcm.c
index 9ef6b96373f5..3e6628c8e665 100644
--- a/sound/soc/atmel/atmel-pcm.c
+++ b/sound/soc/atmel/atmel-pcm.c
@@ -180,7 +180,7 @@ static int atmel_pcm_hw_params(struct snd_pcm_substream *substream,
         snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
         runtime->dma_bytes = params_buffer_bytes(params);
 
-        prtd->params = rtd->dai->cpu_dai->dma_data;
+        prtd->params = snd_soc_dai_get_dma_data(rtd->dai->cpu_dai, substream);
         prtd->params->dma_intr_handler = atmel_pcm_dma_irq;
 
         prtd->dma_buffer = runtime->dma_addr;
diff --git a/sound/soc/atmel/atmel_ssc_dai.c b/sound/soc/atmel/atmel_ssc_dai.c
index e588e63f18d2..0b59806905d1 100644
--- a/sound/soc/atmel/atmel_ssc_dai.c
+++ b/sound/soc/atmel/atmel_ssc_dai.c
@@ -363,12 +363,12 @@ static int atmel_ssc_hw_params(struct snd_pcm_substream *substream,
         ssc_p->dma_params[dir] = dma_params;
 
         /*
-         * The cpu_dai->dma_data field is only used to communicate the
-         * appropriate DMA parameters to the pcm driver hw_params()
+         * The snd_soc_pcm_stream->dma_data field is only used to communicate
+         * the appropriate DMA parameters to the pcm driver hw_params()
          * function.  It should not be used for other purposes
          * as it is common to all substreams.
          */
-        rtd->dai->cpu_dai->dma_data = dma_params;
+        snd_soc_dai_set_dma_data(rtd->dai->cpu_dai, substream, dma_params);
 
         channels = params_channels(params);
 
diff --git a/sound/soc/codecs/ac97.c b/sound/soc/codecs/ac97.c
index a1bbe16b7f96..bcfa53271673 100644
--- a/sound/soc/codecs/ac97.c
+++ b/sound/soc/codecs/ac97.c
@@ -80,9 +80,11 @@ static int ac97_write(struct snd_soc_codec *codec, unsigned int reg,
 static int ac97_soc_probe(struct platform_device *pdev)
 {
         struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+        struct snd_soc_card *card = socdev->card;
         struct snd_soc_codec *codec;
         struct snd_ac97_bus *ac97_bus;
         struct snd_ac97_template ac97_template;
+        int i;
         int ret = 0;
 
         printk(KERN_INFO "AC97 SoC Audio Codec %s\n", AC97_VERSION);
@@ -102,12 +104,6 @@ static int ac97_soc_probe(struct platform_device *pdev)
         INIT_LIST_HEAD(&codec->dapm_widgets);
         INIT_LIST_HEAD(&codec->dapm_paths);
 
-        ret = snd_soc_new_ac97_codec(codec, &soc_ac97_ops, 0);
-        if (ret < 0) {
-                printk(KERN_ERR "ASoC: failed to init gen ac97 glue\n");
-                goto err;
-        }
-
         /* register pcms */
         ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
         if (ret < 0)
@@ -123,6 +119,13 @@ static int ac97_soc_probe(struct platform_device *pdev)
         if (ret < 0)
                 goto bus_err;
 
+        for (i = 0; i < card->num_links; i++) {
+                if (card->dai_link[i].codec_dai->ac97_control) {
+                        snd_ac97_dev_add_pdata(codec->ac97,
+                                card->dai_link[i].cpu_dai->ac97_pdata);
+                }
+        }
+
         return 0;
 
 bus_err:
diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index 29f3771c33a4..f8355ac76a42 100644
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.c
@@ -3007,34 +3007,39 @@ static int wm8994_set_bias_level(struct snd_soc_codec *codec,
                 break;
 
         case SND_SOC_BIAS_OFF:
-                /* Switch over to startup biases */
-                snd_soc_update_bits(codec, WM8994_ANTIPOP_2,
-                                    WM8994_BIAS_SRC | WM8994_STARTUP_BIAS_ENA |
-                                    WM8994_VMID_BUF_ENA |
-                                    WM8994_VMID_RAMP_MASK,
-                                    WM8994_BIAS_SRC | WM8994_STARTUP_BIAS_ENA |
-                                    WM8994_VMID_BUF_ENA |
-                                    (1 << WM8994_VMID_RAMP_SHIFT));
-
-                /* Disable main biases */
-                snd_soc_update_bits(codec, WM8994_POWER_MANAGEMENT_1,
-                                    WM8994_BIAS_ENA | WM8994_VMID_SEL_MASK, 0);
+                if (codec->bias_level == SND_SOC_BIAS_STANDBY) {
+                        /* Switch over to startup biases */
+                        snd_soc_update_bits(codec, WM8994_ANTIPOP_2,
+                                            WM8994_BIAS_SRC |
+                                            WM8994_STARTUP_BIAS_ENA |
+                                            WM8994_VMID_BUF_ENA |
+                                            WM8994_VMID_RAMP_MASK,
+                                            WM8994_BIAS_SRC |
+                                            WM8994_STARTUP_BIAS_ENA |
+                                            WM8994_VMID_BUF_ENA |
+                                            (1 << WM8994_VMID_RAMP_SHIFT));
 
-                /* Discharge line */
-                snd_soc_update_bits(codec, WM8994_ANTIPOP_1,
-                                    WM8994_LINEOUT1_DISCH |
-                                    WM8994_LINEOUT2_DISCH,
-                                    WM8994_LINEOUT1_DISCH |
-                                    WM8994_LINEOUT2_DISCH);
+                        /* Disable main biases */
+                        snd_soc_update_bits(codec, WM8994_POWER_MANAGEMENT_1,
+                                            WM8994_BIAS_ENA |
+                                            WM8994_VMID_SEL_MASK, 0);
 
-                msleep(5);
+                        /* Discharge line */
+                        snd_soc_update_bits(codec, WM8994_ANTIPOP_1,
+                                            WM8994_LINEOUT1_DISCH |
+                                            WM8994_LINEOUT2_DISCH,
+                                            WM8994_LINEOUT1_DISCH |
+                                            WM8994_LINEOUT2_DISCH);
 
-                /* Switch off startup biases */
-                snd_soc_update_bits(codec, WM8994_ANTIPOP_2,
-                                    WM8994_BIAS_SRC | WM8994_STARTUP_BIAS_ENA |
-                                    WM8994_VMID_BUF_ENA |
-                                    WM8994_VMID_RAMP_MASK, 0);
+                        msleep(5);
 
+                        /* Switch off startup biases */
+                        snd_soc_update_bits(codec, WM8994_ANTIPOP_2,
+                                            WM8994_BIAS_SRC |
+                                            WM8994_STARTUP_BIAS_ENA |
+                                            WM8994_VMID_BUF_ENA |
+                                            WM8994_VMID_RAMP_MASK, 0);
+                }
                 break;
         }
         codec->bias_level = level;
@@ -3401,7 +3406,7 @@ struct snd_soc_dai wm8994_dai[] = {
                         .rates = WM8994_RATES,
                         .formats = WM8994_FORMATS,
                 },
-                .playback = {
+                .capture = {
                         .stream_name = "AIF3 Capture",
                         .channels_min = 2,
                         .channels_max = 2,
@@ -3730,11 +3735,12 @@ static int wm8994_codec_probe(struct platform_device *pdev)
         case 3:
                 wm8994->hubs.dcs_codes = -5;
                 wm8994->hubs.hp_startup_mode = 1;
+                wm8994->hubs.dcs_readback_mode = 1;
                 break;
         default:
+                wm8994->hubs.dcs_readback_mode = 1;
                 break;
         }
-                           
 
         /* Remember if AIFnLRCLK is configured as a GPIO.  This should be
          * configured on init - if a system wants to do this dynamically
diff --git a/sound/soc/codecs/wm_hubs.c b/sound/soc/codecs/wm_hubs.c
index 486bdd21a98a..e1f225a3ac46 100644
--- a/sound/soc/codecs/wm_hubs.c
+++ b/sound/soc/codecs/wm_hubs.c
@@ -62,21 +62,27 @@ static const char *speaker_mode_text[] = {
 static const struct soc_enum speaker_mode =
         SOC_ENUM_SINGLE(WM8993_SPKMIXR_ATTENUATION, 8, 2, speaker_mode_text);
 
-static void wait_for_dc_servo(struct snd_soc_codec *codec)
+static void wait_for_dc_servo(struct snd_soc_codec *codec, unsigned int op)
 {
         unsigned int reg;
         int count = 0;
+        unsigned int val;
+
+        val = op | WM8993_DCS_ENA_CHAN_0 | WM8993_DCS_ENA_CHAN_1;
+
+        /* Trigger the command */
+        snd_soc_write(codec, WM8993_DC_SERVO_0, val);
 
         dev_dbg(codec->dev, "Waiting for DC servo...\n");
 
         do {
                 count++;
                 msleep(1);
-                reg = snd_soc_read(codec, WM8993_DC_SERVO_READBACK_0);
+                reg = snd_soc_read(codec, WM8993_DC_SERVO_0);
                 dev_dbg(codec->dev, "DC servo: %x\n", reg);
-        } while (reg & WM8993_DCS_DATAPATH_BUSY && count < 400);
+        } while (reg & op && count < 400);
 
-        if (reg & WM8993_DCS_DATAPATH_BUSY)
+        if (reg & op)
                 dev_err(codec->dev, "Timed out waiting for DC Servo\n");
 }
 
@@ -86,51 +92,58 @@ static void wait_for_dc_servo(struct snd_soc_codec *codec)
 static void calibrate_dc_servo(struct snd_soc_codec *codec)
 {
         struct wm_hubs_data *hubs = codec->private_data;
-        u16 reg, dcs_cfg;
+        u16 reg, reg_l, reg_r, dcs_cfg;
 
         /* Set for 32 series updates */
         snd_soc_update_bits(codec, WM8993_DC_SERVO_1,
                             WM8993_DCS_SERIES_NO_01_MASK,
                             32 << WM8993_DCS_SERIES_NO_01_SHIFT);
-
-        /* Enable the DC servo.  Write all bits to avoid triggering startup
-         * or write calibration.
-         */
-        snd_soc_update_bits(codec, WM8993_DC_SERVO_0,
-                            0xFFFF,
-                            WM8993_DCS_ENA_CHAN_0 |
-                            WM8993_DCS_ENA_CHAN_1 |
-                            WM8993_DCS_TRIG_SERIES_1 |
-                            WM8993_DCS_TRIG_SERIES_0);
-
-        wait_for_dc_servo(codec);
+        wait_for_dc_servo(codec,
+                          WM8993_DCS_TRIG_SERIES_0 | WM8993_DCS_TRIG_SERIES_1);
 
         /* Apply correction to DC servo result */
         if (hubs->dcs_codes) {
                 dev_dbg(codec->dev, "Applying %d code DC servo correction\n",
                         hubs->dcs_codes);
 
+                /* Different chips in the family support different
+                 * readback methods.
+                 */
+                switch (hubs->dcs_readback_mode) {
+                case 0:
+                        reg_l = snd_soc_read(codec, WM8993_DC_SERVO_READBACK_1)
+                                & WM8993_DCS_INTEG_CHAN_0_MASK;;
+                        reg_r = snd_soc_read(codec, WM8993_DC_SERVO_READBACK_2)
+                                & WM8993_DCS_INTEG_CHAN_1_MASK;
+                        break;
+                case 1:
+                        reg = snd_soc_read(codec, WM8993_DC_SERVO_3);
+                        reg_l = (reg & WM8993_DCS_DAC_WR_VAL_1_MASK)
+                                >> WM8993_DCS_DAC_WR_VAL_1_SHIFT;
+                        reg_r = reg & WM8993_DCS_DAC_WR_VAL_0_MASK;
+                        break;
+                default:
+                        WARN(1, "Unknown DCS readback method");
+                        break;
+                }
+
                 /* HPOUT1L */
-                reg = snd_soc_read(codec, WM8993_DC_SERVO_READBACK_1) &
-                        WM8993_DCS_INTEG_CHAN_0_MASK;;
-                reg += hubs->dcs_codes;
-                dcs_cfg = reg << WM8993_DCS_DAC_WR_VAL_1_SHIFT;
+                if (reg_l + hubs->dcs_codes > 0 &&
+                    reg_l + hubs->dcs_codes < 0xff)
+                        reg_l += hubs->dcs_codes;
+                dcs_cfg = reg_l << WM8993_DCS_DAC_WR_VAL_1_SHIFT;
 
                 /* HPOUT1R */
-                reg = snd_soc_read(codec, WM8993_DC_SERVO_READBACK_2) &
-                        WM8993_DCS_INTEG_CHAN_1_MASK;
-                reg += hubs->dcs_codes;
-                dcs_cfg |= reg;
+                if (reg_r + hubs->dcs_codes > 0 &&
+                    reg_r + hubs->dcs_codes < 0xff)
+                        reg_r += hubs->dcs_codes;
+                dcs_cfg |= reg_r;
 
                 /* Do it */
                 snd_soc_write(codec, WM8993_DC_SERVO_3, dcs_cfg);
-                snd_soc_update_bits(codec, WM8993_DC_SERVO_0,
-                                    WM8993_DCS_TRIG_DAC_WR_0 |
-                                    WM8993_DCS_TRIG_DAC_WR_1,
-                                    WM8993_DCS_TRIG_DAC_WR_0 |
-                                    WM8993_DCS_TRIG_DAC_WR_1);
-
-                wait_for_dc_servo(codec);
+                wait_for_dc_servo(codec,
+                                  WM8993_DCS_TRIG_DAC_WR_0 |
+                                  WM8993_DCS_TRIG_DAC_WR_1);
         }
 }
 
@@ -141,10 +154,16 @@ static int wm8993_put_dc_servo(struct snd_kcontrol *kcontrol,
                                struct snd_ctl_elem_value *ucontrol)
 {
         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+        struct wm_hubs_data *hubs = codec->private_data;
         int ret;
 
         ret = snd_soc_put_volsw_2r(kcontrol, ucontrol);
 
+        /* If we're applying an offset correction then updating the
+         * callibration would be likely to introduce further offsets. */
+        if (hubs->dcs_codes)
+                return ret;
+
         /* Only need to do this if the outputs are active */
         if (snd_soc_read(codec, WM8993_POWER_MANAGEMENT_1)
             & (WM8993_HPOUT1L_ENA | WM8993_HPOUT1R_ENA))
diff --git a/sound/soc/codecs/wm_hubs.h b/sound/soc/codecs/wm_hubs.h
index 420104fe9c90..e51c16683589 100644
--- a/sound/soc/codecs/wm_hubs.h
+++ b/sound/soc/codecs/wm_hubs.h
@@ -21,6 +21,7 @@ extern const unsigned int wm_hubs_spkmix_tlv[];
 /* This *must* be the first element of the codec->private_data struct */
 struct wm_hubs_data {
         int dcs_codes;
+        int dcs_readback_mode;
         int hp_startup_mode;
 };
 
diff --git a/sound/soc/davinci/davinci-i2s.c b/sound/soc/davinci/davinci-i2s.c
index 6362ca05506e..4aad7ecc90a2 100644
--- a/sound/soc/davinci/davinci-i2s.c
+++ b/sound/soc/davinci/davinci-i2s.c
@@ -585,7 +585,8 @@ static int davinci_i2s_probe(struct platform_device *pdev)
         dev->dma_params[SNDRV_PCM_STREAM_CAPTURE].channel = res->start;
 
         davinci_i2s_dai.private_data = dev;
-        davinci_i2s_dai.dma_data = dev->dma_params;
+        davinci_i2s_dai.capture.dma_data = dev->dma_params;
+        davinci_i2s_dai.playback.dma_data = dev->dma_params;
         ret = snd_soc_register_dai(&davinci_i2s_dai);
         if (ret != 0)
                 goto err_free_mem;
diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c
index ab6518d86f18..c056bfbe0340 100644
--- a/sound/soc/davinci/davinci-mcasp.c
+++ b/sound/soc/davinci/davinci-mcasp.c
@@ -917,7 +917,8 @@ static int davinci_mcasp_probe(struct platform_device *pdev)
 
         dma_data->channel = res->start;
         davinci_mcasp_dai[pdata->op_mode].private_data = dev;
-        davinci_mcasp_dai[pdata->op_mode].dma_data = dev->dma_params;
+        davinci_mcasp_dai[pdata->op_mode].capture.dma_data = dev->dma_params;
+        davinci_mcasp_dai[pdata->op_mode].playback.dma_data = dev->dma_params;
         davinci_mcasp_dai[pdata->op_mode].dev = &pdev->dev;
         ret = snd_soc_register_dai(&davinci_mcasp_dai[pdata->op_mode]);
 
diff --git a/sound/soc/davinci/davinci-pcm.c b/sound/soc/davinci/davinci-pcm.c
index 80c7fdf2f521..2dc406f42fe7 100644
--- a/sound/soc/davinci/davinci-pcm.c
+++ b/sound/soc/davinci/davinci-pcm.c
@@ -649,8 +649,10 @@ static int davinci_pcm_open(struct snd_pcm_substream *substream)
         struct snd_pcm_hardware *ppcm;
         int ret = 0;
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
-        struct davinci_pcm_dma_params *pa = rtd->dai->cpu_dai->dma_data;
+        struct davinci_pcm_dma_params *pa;
         struct davinci_pcm_dma_params *params;
+
+        pa = snd_soc_dai_get_dma_data(rtd->dai->cpu_dai, substream);
         if (!pa)
                 return -ENODEV;
         params = &pa[substream->stream];
diff --git a/sound/soc/imx/imx-pcm-dma-mx2.c b/sound/soc/imx/imx-pcm-dma-mx2.c
index 19452e44afdc..c78c000e2afe 100644
--- a/sound/soc/imx/imx-pcm-dma-mx2.c
+++ b/sound/soc/imx/imx-pcm-dma-mx2.c
@@ -83,11 +83,13 @@ static void snd_imx_dma_err_callback(int channel, void *data, int err)
 static int imx_ssi_dma_alloc(struct snd_pcm_substream *substream)
 {
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
-        struct imx_pcm_dma_params *dma_params = rtd->dai->cpu_dai->dma_data;
+        struct imx_pcm_dma_params *dma_params;
         struct snd_pcm_runtime *runtime = substream->runtime;
         struct imx_pcm_runtime_data *iprtd = runtime->private_data;
         int ret;
 
+        dma_params = snd_soc_get_dma_data(rtd->dai->cpu_dai, substream);
+
         iprtd->dma = imx_dma_request_by_prio(DRV_NAME, DMA_PRIO_HIGH);
         if (iprtd->dma < 0) {
                 pr_err("Failed to claim the audio DMA\n");
@@ -192,10 +194,12 @@ static int snd_imx_pcm_prepare(struct snd_pcm_substream *substream)
 {
         struct snd_pcm_runtime *runtime = substream->runtime;
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
-        struct imx_pcm_dma_params *dma_params = rtd->dai->cpu_dai->dma_data;
+        struct imx_pcm_dma_params *dma_params;
         struct imx_pcm_runtime_data *iprtd = runtime->private_data;
         int err;
 
+        dma_params = snd_soc_get_dma_data(rtd->dai->cpu_dai, substream);
+
         iprtd->substream = substream;
         iprtd->buf = (unsigned int *)substream->dma_buffer.area;
         iprtd->period_cnt = 0;
diff --git a/sound/soc/imx/imx-ssi.c b/sound/soc/imx/imx-ssi.c
index 56f46a75d297..28e55c7b14b4 100644
--- a/sound/soc/imx/imx-ssi.c
+++ b/sound/soc/imx/imx-ssi.c
@@ -234,17 +234,20 @@ static int imx_ssi_hw_params(struct snd_pcm_substream *substream,
                              struct snd_soc_dai *cpu_dai)
 {
         struct imx_ssi *ssi = cpu_dai->private_data;
+        struct imx_pcm_dma_params *dma_data;
         u32 reg, sccr;
 
         /* Tx/Rx config */
         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
                 reg = SSI_STCCR;
-                cpu_dai->dma_data = &ssi->dma_params_tx;
+                dma_data = &ssi->dma_params_tx;
         } else {
                 reg = SSI_SRCCR;
-                cpu_dai->dma_data = &ssi->dma_params_rx;
+                dma_data = &ssi->dma_params_rx;
         }
 
+        snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
+
         sccr = readl(ssi->base + reg) & ~SSI_STCCR_WL_MASK;
 
         /* DAI data (word) size */
diff --git a/sound/soc/omap/omap-mcbsp.c b/sound/soc/omap/omap-mcbsp.c
index e814a9591f78..8ad9dc901007 100644
--- a/sound/soc/omap/omap-mcbsp.c
+++ b/sound/soc/omap/omap-mcbsp.c
@@ -297,7 +297,9 @@ static int omap_mcbsp_dai_hw_params(struct snd_pcm_substream *substream,
         omap_mcbsp_dai_dma_params[id][substream->stream].sync_mode = sync_mode;
         omap_mcbsp_dai_dma_params[id][substream->stream].data_type =
                                                         OMAP_DMA_DATA_TYPE_S16;
-        cpu_dai->dma_data = &omap_mcbsp_dai_dma_params[id][substream->stream];
+
+        snd_soc_dai_set_dma_data(cpu_dai, substream,
+                &omap_mcbsp_dai_dma_params[id][substream->stream]);
 
         if (mcbsp_data->configured) {
                 /* McBSP already configured by another stream */
diff --git a/sound/soc/omap/omap-mcpdm.c b/sound/soc/omap/omap-mcpdm.c
index 25f19e4728bf..b7f4f7e015f3 100644
--- a/sound/soc/omap/omap-mcpdm.c
+++ b/sound/soc/omap/omap-mcpdm.c
@@ -150,7 +150,8 @@ static int omap_mcpdm_dai_hw_params(struct snd_pcm_substream *substream,
         int stream = substream->stream;
         int channels, err, link_mask = 0;
 
-        cpu_dai->dma_data = &omap_mcpdm_dai_dma_params[stream];
+        snd_soc_dai_set_dma_data(cpu_dai, substream,
+                                 &omap_mcpdm_dai_dma_params[stream]);
 
         channels = params_channels(params);
         switch (channels) {
diff --git a/sound/soc/omap/omap-pcm.c b/sound/soc/omap/omap-pcm.c
index 825db385f01f..39456447132c 100644
--- a/sound/soc/omap/omap-pcm.c
+++ b/sound/soc/omap/omap-pcm.c
@@ -60,12 +60,11 @@ static void omap_pcm_dma_irq(int ch, u16 stat, void *data)
         struct omap_runtime_data *prtd = runtime->private_data;
         unsigned long flags;
 
-        if ((cpu_is_omap1510()) &&
-                        (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)) {
+        if ((cpu_is_omap1510())) {
                 /*
                  * OMAP1510 doesn't fully support DMA progress counter
                  * and there is no software emulation implemented yet,
-                 * so have to maintain our own playback progress counter
+                 * so have to maintain our own progress counters
                  * that can be used by omap_pcm_pointer() instead.
                  */
                 spin_lock_irqsave(&prtd->lock, flags);
@@ -100,9 +99,11 @@ static int omap_pcm_hw_params(struct snd_pcm_substream *substream,
         struct snd_pcm_runtime *runtime = substream->runtime;
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
         struct omap_runtime_data *prtd = runtime->private_data;
-        struct omap_pcm_dma_data *dma_data = rtd->dai->cpu_dai->dma_data;
+        struct omap_pcm_dma_data *dma_data;
         int err = 0;
 
+        dma_data = snd_soc_dai_get_dma_data(rtd->dai->cpu_dai, substream);
+
         /* return if this is a bufferless transfer e.g.
          * codec <--> BT codec or GSM modem -- lg FIXME */
         if (!dma_data)
@@ -189,8 +190,7 @@ static int omap_pcm_prepare(struct snd_pcm_substream *substream)
         dma_params.frame_count  = runtime->periods;
         omap_set_dma_params(prtd->dma_ch, &dma_params);
 
-        if ((cpu_is_omap1510()) &&
-                        (substream->stream == SNDRV_PCM_STREAM_PLAYBACK))
+        if ((cpu_is_omap1510()))
                 omap_enable_dma_irq(prtd->dma_ch, OMAP_DMA_FRAME_IRQ |
                               OMAP_DMA_LAST_IRQ | OMAP_DMA_BLOCK_IRQ);
         else
@@ -248,14 +248,15 @@ static snd_pcm_uframes_t omap_pcm_pointer(struct snd_pcm_substream *substream)
         dma_addr_t ptr;
         snd_pcm_uframes_t offset;
 
-        if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
+        if (cpu_is_omap1510()) {
+                offset = prtd->period_index * runtime->period_size;
+        } else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
                 ptr = omap_get_dma_dst_pos(prtd->dma_ch);
                 offset = bytes_to_frames(runtime, ptr - runtime->dma_addr);
-        } else if (!(cpu_is_omap1510())) {
+        } else {
                 ptr = omap_get_dma_src_pos(prtd->dma_ch);
                 offset = bytes_to_frames(runtime, ptr - runtime->dma_addr);
-        } else
-                offset = prtd->period_index * runtime->period_size;
+        }
 
         if (offset >= runtime->buffer_size)
                 offset = 0;
diff --git a/sound/soc/pxa/pxa-ssp.c b/sound/soc/pxa/pxa-ssp.c
index 9e95e5117c88..6959c5199160 100644
--- a/sound/soc/pxa/pxa-ssp.c
+++ b/sound/soc/pxa/pxa-ssp.c
@@ -121,10 +121,9 @@ static int pxa_ssp_startup(struct snd_pcm_substream *substream,
                 ssp_disable(ssp);
         }
 
-        if (cpu_dai->dma_data) {
-                kfree(cpu_dai->dma_data);
-                cpu_dai->dma_data = NULL;
-        }
+        kfree(snd_soc_dai_get_dma_data(cpu_dai, substream));
+        snd_soc_dai_set_dma_data(cpu_dai, substream, NULL);
+
         return ret;
 }
 
@@ -141,10 +140,8 @@ static void pxa_ssp_shutdown(struct snd_pcm_substream *substream,
                 clk_disable(ssp->clk);
         }
 
-        if (cpu_dai->dma_data) {
-                kfree(cpu_dai->dma_data);
-                cpu_dai->dma_data = NULL;
-        }
+        kfree(snd_soc_dai_get_dma_data(cpu_dai, substream));
+        snd_soc_dai_set_dma_data(cpu_dai, substream, NULL);
 }
 
 #ifdef CONFIG_PM
@@ -569,19 +566,23 @@ static int pxa_ssp_hw_params(struct snd_pcm_substream *substream,
         u32 sspsp;
         int width = snd_pcm_format_physical_width(params_format(params));
         int ttsa = ssp_read_reg(ssp, SSTSA) & 0xf;
+        struct pxa2xx_pcm_dma_params *dma_data;
+
+        dma_data = snd_soc_dai_get_dma_data(dai, substream);
 
         /* generate correct DMA params */
-        if (cpu_dai->dma_data)
-                kfree(cpu_dai->dma_data);
+        kfree(dma_data);
 
         /* Network mode with one active slot (ttsa == 1) can be used
          * to force 16-bit frame width on the wire (for S16_LE), even
          * with two channels. Use 16-bit DMA transfers for this case.
          */
-        cpu_dai->dma_data = ssp_get_dma_params(ssp,
+        dma_data = ssp_get_dma_params(ssp,
                         ((chn == 2) && (ttsa != 1)) || (width == 32),
                         substream->stream == SNDRV_PCM_STREAM_PLAYBACK);
 
+        snd_soc_dai_set_dma_data(dai, substream, dma_data);
+
         /* we can only change the settings if the port is not in use */
         if (ssp_read_reg(ssp, SSCR0) & SSCR0_SSE)
                 return 0;
diff --git a/sound/soc/pxa/pxa2xx-ac97.c b/sound/soc/pxa/pxa2xx-ac97.c
index e9ae7b3a7e00..d314115e3dd7 100644
--- a/sound/soc/pxa/pxa2xx-ac97.c
+++ b/sound/soc/pxa/pxa2xx-ac97.c
@@ -122,11 +122,14 @@ static int pxa2xx_ac97_hw_params(struct snd_pcm_substream *substream,
 {
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
         struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
+        struct pxa2xx_pcm_dma_params *dma_data;
 
         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-                cpu_dai->dma_data = &pxa2xx_ac97_pcm_stereo_out;
+                dma_data = &pxa2xx_ac97_pcm_stereo_out;
         else
-                cpu_dai->dma_data = &pxa2xx_ac97_pcm_stereo_in;
+                dma_data = &pxa2xx_ac97_pcm_stereo_in;
+
+        snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
 
         return 0;
 }
@@ -137,11 +140,14 @@ static int pxa2xx_ac97_hw_aux_params(struct snd_pcm_substream *substream,
 {
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
         struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
+        struct pxa2xx_pcm_dma_params *dma_data;
 
         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-                cpu_dai->dma_data = &pxa2xx_ac97_pcm_aux_mono_out;
+                dma_data = &pxa2xx_ac97_pcm_aux_mono_out;
         else
-                cpu_dai->dma_data = &pxa2xx_ac97_pcm_aux_mono_in;
+                dma_data = &pxa2xx_ac97_pcm_aux_mono_in;
+
+        snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
 
         return 0;
 }
@@ -156,7 +162,8 @@ static int pxa2xx_ac97_hw_mic_params(struct snd_pcm_substream *substream,
         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
                 return -ENODEV;
         else
-                cpu_dai->dma_data = &pxa2xx_ac97_pcm_mic_mono_in;
+                snd_soc_dai_set_dma_data(cpu_dai, substream,
+                                         &pxa2xx_ac97_pcm_mic_mono_in);
 
         return 0;
 }
diff --git a/sound/soc/pxa/pxa2xx-i2s.c b/sound/soc/pxa/pxa2xx-i2s.c
index 6b8f655d1ad8..c1a5275721e4 100644
--- a/sound/soc/pxa/pxa2xx-i2s.c
+++ b/sound/soc/pxa/pxa2xx-i2s.c
@@ -164,6 +164,7 @@ static int pxa2xx_i2s_hw_params(struct snd_pcm_substream *substream,
 {
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
         struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
+        struct pxa2xx_pcm_dma_params *dma_data;
 
         BUG_ON(IS_ERR(clk_i2s));
         clk_enable(clk_i2s);
@@ -171,9 +172,11 @@ static int pxa2xx_i2s_hw_params(struct snd_pcm_substream *substream,
         pxa_i2s_wait();
 
         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-                cpu_dai->dma_data = &pxa2xx_i2s_pcm_stereo_out;
+                dma_data = &pxa2xx_i2s_pcm_stereo_out;
         else
-                cpu_dai->dma_data = &pxa2xx_i2s_pcm_stereo_in;
+                dma_data = &pxa2xx_i2s_pcm_stereo_in;
+
+        snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
 
         /* is port used by another stream */
         if (!(SACR0 & SACR0_ENB)) {
diff --git a/sound/soc/pxa/pxa2xx-pcm.c b/sound/soc/pxa/pxa2xx-pcm.c
index d38e39575f51..adc7e6f15f93 100644
--- a/sound/soc/pxa/pxa2xx-pcm.c
+++ b/sound/soc/pxa/pxa2xx-pcm.c
@@ -25,9 +25,11 @@ static int pxa2xx_pcm_hw_params(struct snd_pcm_substream *substream,
         struct snd_pcm_runtime *runtime = substream->runtime;
         struct pxa2xx_runtime_data *prtd = runtime->private_data;
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
-        struct pxa2xx_pcm_dma_params *dma = rtd->dai->cpu_dai->dma_data;
+        struct pxa2xx_pcm_dma_params *dma;
         int ret;
 
+        dma = snd_soc_dai_get_dma_data(rtd->dai->cpu_dai, substream);
+
         /* return if this is a bufferless transfer e.g.
          * codec <--> BT codec or GSM modem -- lg FIXME */
         if (!dma)
diff --git a/sound/soc/s3c24xx/s3c-ac97.c b/sound/soc/s3c24xx/s3c-ac97.c
index ee8ed9d7e703..ecf4fd04ae96 100644
--- a/sound/soc/s3c24xx/s3c-ac97.c
+++ b/sound/soc/s3c24xx/s3c-ac97.c
@@ -224,11 +224,14 @@ static int s3c_ac97_hw_params(struct snd_pcm_substream *substream,
 {
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
         struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
+        struct s3c_dma_params *dma_data;
 
         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-                cpu_dai->dma_data = &s3c_ac97_pcm_out;
+                dma_data = &s3c_ac97_pcm_out;
         else
-                cpu_dai->dma_data = &s3c_ac97_pcm_in;
+                dma_data = &s3c_ac97_pcm_in;
+
+        snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
 
         return 0;
 }
@@ -238,8 +241,8 @@ static int s3c_ac97_trigger(struct snd_pcm_substream *substream, int cmd,
 {
         u32 ac_glbctrl;
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
-        int channel = ((struct s3c_dma_params *)
-                  rtd->dai->cpu_dai->dma_data)->channel;
+        struct s3c_dma_params *dma_data =
+                snd_soc_dai_get_dma_data(rtd->dai->cpu_dai, substream);
 
         ac_glbctrl = readl(s3c_ac97.regs + S3C_AC97_GLBCTRL);
         if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
@@ -265,7 +268,7 @@ static int s3c_ac97_trigger(struct snd_pcm_substream *substream, int cmd,
 
         writel(ac_glbctrl, s3c_ac97.regs + S3C_AC97_GLBCTRL);
 
-        s3c2410_dma_ctrl(channel, S3C2410_DMAOP_STARTED);
+        s3c2410_dma_ctrl(dma_data->channel, S3C2410_DMAOP_STARTED);
 
         return 0;
 }
@@ -280,7 +283,7 @@ static int s3c_ac97_hw_mic_params(struct snd_pcm_substream *substream,
         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
                 return -ENODEV;
         else
-                cpu_dai->dma_data = &s3c_ac97_mic_in;
+                snd_soc_dai_set_dma_data(cpu_dai, substream, &s3c_ac97_mic_in);
 
         return 0;
 }
@@ -290,8 +293,8 @@ static int s3c_ac97_mic_trigger(struct snd_pcm_substream *substream,
 {
         u32 ac_glbctrl;
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
-        int channel = ((struct s3c_dma_params *)
-                  rtd->dai->cpu_dai->dma_data)->channel;
+        struct s3c_dma_params *dma_data =
+                snd_soc_dai_get_dma_data(rtd->dai->cpu_dai, substream);
 
         ac_glbctrl = readl(s3c_ac97.regs + S3C_AC97_GLBCTRL);
         ac_glbctrl &= ~S3C_AC97_GLBCTRL_MICINTM_MASK;
@@ -311,7 +314,7 @@ static int s3c_ac97_mic_trigger(struct snd_pcm_substream *substream,
 
         writel(ac_glbctrl, s3c_ac97.regs + S3C_AC97_GLBCTRL);
 
-        s3c2410_dma_ctrl(channel, S3C2410_DMAOP_STARTED);
+        s3c2410_dma_ctrl(dma_data->channel, S3C2410_DMAOP_STARTED);
 
         return 0;
 }
diff --git a/sound/soc/s3c24xx/s3c-dma.c b/sound/soc/s3c24xx/s3c-dma.c
index 7725e26d6c91..1b61c23ff300 100644
--- a/sound/soc/s3c24xx/s3c-dma.c
+++ b/sound/soc/s3c24xx/s3c-dma.c
@@ -145,10 +145,12 @@ static int s3c_dma_hw_params(struct snd_pcm_substream *substream,
         struct snd_pcm_runtime *runtime = substream->runtime;
         struct s3c24xx_runtime_data *prtd = runtime->private_data;
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
-        struct s3c_dma_params *dma = rtd->dai->cpu_dai->dma_data;
         unsigned long totbytes = params_buffer_bytes(params);
+        struct s3c_dma_params *dma =
+                snd_soc_dai_get_dma_data(rtd->dai->cpu_dai, substream);
         int ret = 0;
 
+
         pr_debug("Entered %s\n", __func__);
 
         /* return if this is a bufferless transfer e.g.
diff --git a/sound/soc/s3c24xx/s3c-i2s-v2.c b/sound/soc/s3c24xx/s3c-i2s-v2.c
index e994d8374fe6..88515946b6c0 100644
--- a/sound/soc/s3c24xx/s3c-i2s-v2.c
+++ b/sound/soc/s3c24xx/s3c-i2s-v2.c
@@ -339,14 +339,17 @@ static int s3c2412_i2s_hw_params(struct snd_pcm_substream *substream,
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
         struct snd_soc_dai_link *dai = rtd->dai;
         struct s3c_i2sv2_info *i2s = to_info(dai->cpu_dai);
+        struct s3c_dma_params *dma_data;
         u32 iismod;
 
         pr_debug("Entered %s\n", __func__);
 
         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-                dai->cpu_dai->dma_data = i2s->dma_playback;
+                dma_data = i2s->dma_playback;
         else
-                dai->cpu_dai->dma_data = i2s->dma_capture;
+                dma_data = i2s->dma_capture;
+
+        snd_soc_dai_set_dma_data(dai->cpu_dai, substream, dma_data);
 
         /* Working copies of register */
         iismod = readl(i2s->regs + S3C2412_IISMOD);
@@ -394,8 +397,8 @@ static int s3c2412_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
         int capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE);
         unsigned long irqs;
         int ret = 0;
-        int channel = ((struct s3c_dma_params *)
-                  rtd->dai->cpu_dai->dma_data)->channel;
+        struct s3c_dma_params *dma_data =
+                snd_soc_dai_get_dma_data(rtd->dai->cpu_dai, substream);
 
         pr_debug("Entered %s\n", __func__);
 
@@ -431,7 +434,7 @@ static int s3c2412_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
                  * of the auto reload mechanism of S3C24XX.
                  * This call won't bother S3C64XX.
                  */
-                s3c2410_dma_ctrl(channel, S3C2410_DMAOP_STARTED);
+                s3c2410_dma_ctrl(dma_data->channel, S3C2410_DMAOP_STARTED);
 
                 break;
 
diff --git a/sound/soc/s3c24xx/s3c-pcm.c b/sound/soc/s3c24xx/s3c-pcm.c
index a98f40c3cd29..326f0a9e7e30 100644
--- a/sound/soc/s3c24xx/s3c-pcm.c
+++ b/sound/soc/s3c24xx/s3c-pcm.c
@@ -178,6 +178,7 @@ static int s3c_pcm_hw_params(struct snd_pcm_substream *substream,
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
         struct snd_soc_dai_link *dai = rtd->dai;
         struct s3c_pcm_info *pcm = to_info(dai->cpu_dai);
+        struct s3c_dma_params *dma_data;
         void __iomem *regs = pcm->regs;
         struct clk *clk;
         int sclk_div, sync_div;
@@ -187,9 +188,11 @@ static int s3c_pcm_hw_params(struct snd_pcm_substream *substream,
         dev_dbg(pcm->dev, "Entered %s\n", __func__);
 
         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-                dai->cpu_dai->dma_data = pcm->dma_playback;
+                dma_data = pcm->dma_playback;
         else
-                dai->cpu_dai->dma_data = pcm->dma_capture;
+                dma_data = pcm->dma_capture;
+
+        snd_soc_dai_set_dma_data(dai->cpu_dai, substream, dma_data);
 
         /* Strictly check for sample size */
         switch (params_format(params)) {
diff --git a/sound/soc/s3c24xx/s3c24xx-i2s.c b/sound/soc/s3c24xx/s3c24xx-i2s.c
index 0bc5950b9f02..c3ac890a3986 100644
--- a/sound/soc/s3c24xx/s3c24xx-i2s.c
+++ b/sound/soc/s3c24xx/s3c24xx-i2s.c
@@ -242,14 +242,17 @@ static int s3c24xx_i2s_hw_params(struct snd_pcm_substream *substream,
                                  struct snd_soc_dai *dai)
 {
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
+        struct s3c_dma_params *dma_data;
         u32 iismod;
 
         pr_debug("Entered %s\n", __func__);
 
         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-                rtd->dai->cpu_dai->dma_data = &s3c24xx_i2s_pcm_stereo_out;
+                dma_data = &s3c24xx_i2s_pcm_stereo_out;
         else
-                rtd->dai->cpu_dai->dma_data = &s3c24xx_i2s_pcm_stereo_in;
+                dma_data = &s3c24xx_i2s_pcm_stereo_in;
+
+        snd_soc_dai_set_dma_data(rtd->dai->cpu_dai, substream, dma_data);
 
         /* Working copies of register */
         iismod = readl(s3c24xx_i2s.regs + S3C2410_IISMOD);
@@ -258,13 +261,11 @@ static int s3c24xx_i2s_hw_params(struct snd_pcm_substream *substream,
         switch (params_format(params)) {
         case SNDRV_PCM_FORMAT_S8:
                 iismod &= ~S3C2410_IISMOD_16BIT;
-                ((struct s3c_dma_params *)
-                  rtd->dai->cpu_dai->dma_data)->dma_size = 1;
+                dma_data->dma_size = 1;
                 break;
         case SNDRV_PCM_FORMAT_S16_LE:
                 iismod |= S3C2410_IISMOD_16BIT;
-                ((struct s3c_dma_params *)
-                  rtd->dai->cpu_dai->dma_data)->dma_size = 2;
+                dma_data->dma_size = 2;
                 break;
         default:
                 return -EINVAL;
@@ -280,8 +281,8 @@ static int s3c24xx_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
 {
         int ret = 0;
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
-        int channel = ((struct s3c_dma_params *)
-                  rtd->dai->cpu_dai->dma_data)->channel;
+        struct s3c_dma_params *dma_data =
+                snd_soc_dai_get_dma_data(rtd->dai->cpu_dai, substream);
 
         pr_debug("Entered %s\n", __func__);
 
@@ -300,7 +301,7 @@ static int s3c24xx_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
                 else
                         s3c24xx_snd_txctrl(1);
 
-                s3c2410_dma_ctrl(channel, S3C2410_DMAOP_STARTED);
+                s3c2410_dma_ctrl(dma_data->channel, S3C2410_DMAOP_STARTED);
                 break;
         case SNDRV_PCM_TRIGGER_STOP:
         case SNDRV_PCM_TRIGGER_SUSPEND:
diff --git a/sound/soc/s6000/s6000-i2s.c b/sound/soc/s6000/s6000-i2s.c
index c5cda187ecab..fa23854c5f3a 100644
--- a/sound/soc/s6000/s6000-i2s.c
+++ b/sound/soc/s6000/s6000-i2s.c
@@ -518,7 +518,8 @@ static int __devinit s6000_i2s_probe(struct platform_device *pdev)
 
         s6000_i2s_dai.dev = &pdev->dev;
         s6000_i2s_dai.private_data = dev;
-        s6000_i2s_dai.dma_data = &dev->dma_params;
+        s6000_i2s_dai.capture.dma_data = &dev->dma_params;
+        s6000_i2s_dai.playback.dma_data = &dev->dma_params;
 
         dev->sifbase = sifmem->start;
         dev->scbbase = mmio;
diff --git a/sound/soc/s6000/s6000-pcm.c b/sound/soc/s6000/s6000-pcm.c
index 1d61109e09fa..9c7f7f00cebb 100644
--- a/sound/soc/s6000/s6000-pcm.c
+++ b/sound/soc/s6000/s6000-pcm.c
@@ -58,13 +58,15 @@ static void s6000_pcm_enqueue_dma(struct snd_pcm_substream *substream)
         struct snd_pcm_runtime *runtime = substream->runtime;
         struct s6000_runtime_data *prtd = runtime->private_data;
         struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
-        struct s6000_pcm_dma_params *par = soc_runtime->dai->cpu_dai->dma_data;
+        struct s6000_pcm_dma_params *par;
         int channel;
         unsigned int period_size;
         unsigned int dma_offset;
         dma_addr_t dma_pos;
         dma_addr_t src, dst;
 
+        par = snd_soc_dai_get_dma_data(soc_runtime->dai->cpu_dai, substream);
+
         period_size = snd_pcm_lib_period_bytes(substream);
         dma_offset = prtd->period * period_size;
         dma_pos = runtime->dma_addr + dma_offset;
@@ -101,7 +103,8 @@ static irqreturn_t s6000_pcm_irq(int irq, void *data)
 {
         struct snd_pcm *pcm = data;
         struct snd_soc_pcm_runtime *runtime = pcm->private_data;
-        struct s6000_pcm_dma_params *params = runtime->dai->cpu_dai->dma_data;
+        struct s6000_pcm_dma_params *params =
+                snd_soc_dai_get_dma_data(soc_runtime->dai->cpu_dai, substream);
         struct s6000_runtime_data *prtd;
         unsigned int has_xrun;
         int i, ret = IRQ_NONE;
@@ -172,11 +175,13 @@ static int s6000_pcm_start(struct snd_pcm_substream *substream)
 {
         struct s6000_runtime_data *prtd = substream->runtime->private_data;
         struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
-        struct s6000_pcm_dma_params *par = soc_runtime->dai->cpu_dai->dma_data;
+        struct s6000_pcm_dma_params *par;
         unsigned long flags;
         int srcinc;
         u32 dma;
 
+        par = snd_soc_dai_get_dma_data(soc_runtime->dai->cpu_dai, substream);
+
         spin_lock_irqsave(&prtd->lock, flags);
 
         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
@@ -212,10 +217,12 @@ static int s6000_pcm_stop(struct snd_pcm_substream *substream)
 {
         struct s6000_runtime_data *prtd = substream->runtime->private_data;
         struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
-        struct s6000_pcm_dma_params *par = soc_runtime->dai->cpu_dai->dma_data;
+        struct s6000_pcm_dma_params *par;
         unsigned long flags;
         u32 channel;
 
+        par = snd_soc_dai_get_dma_data(soc_runtime->dai->cpu_dai, substream);
+
         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
                 channel = par->dma_out;
         else
@@ -236,9 +243,11 @@ static int s6000_pcm_stop(struct snd_pcm_substream *substream)
 static int s6000_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 {
         struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
-        struct s6000_pcm_dma_params *par = soc_runtime->dai->cpu_dai->dma_data;
+        struct s6000_pcm_dma_params *par;
         int ret;
 
+        par = snd_soc_dai_get_dma_data(soc_runtime->dai->cpu_dai, substream);
+
         ret = par->trigger(substream, cmd, 0);
         if (ret < 0)
                 return ret;
@@ -275,13 +284,15 @@ static int s6000_pcm_prepare(struct snd_pcm_substream *substream)
 static snd_pcm_uframes_t s6000_pcm_pointer(struct snd_pcm_substream *substream)
 {
         struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
-        struct s6000_pcm_dma_params *par = soc_runtime->dai->cpu_dai->dma_data;
+        struct s6000_pcm_dma_params *par;
         struct snd_pcm_runtime *runtime = substream->runtime;
         struct s6000_runtime_data *prtd = runtime->private_data;
         unsigned long flags;
         unsigned int offset;
         dma_addr_t count;
 
+        par = snd_soc_dai_get_dma_data(soc_runtime->dai->cpu_dai, substream);
+
         spin_lock_irqsave(&prtd->lock, flags);
 
         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
@@ -305,11 +316,12 @@ static snd_pcm_uframes_t s6000_pcm_pointer(struct snd_pcm_substream *substream)
 static int s6000_pcm_open(struct snd_pcm_substream *substream)
 {
         struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
-        struct s6000_pcm_dma_params *par = soc_runtime->dai->cpu_dai->dma_data;
+        struct s6000_pcm_dma_params *par;
         struct snd_pcm_runtime *runtime = substream->runtime;
         struct s6000_runtime_data *prtd;
         int ret;
 
+        par = snd_soc_dai_get_dma_data(soc_runtime->dai->cpu_dai, substream);
         snd_soc_set_runtime_hwparams(substream, &s6000_pcm_hardware);
 
         ret = snd_pcm_hw_constraint_step(runtime, 0,
@@ -364,7 +376,7 @@ static int s6000_pcm_hw_params(struct snd_pcm_substream *substream,
                                  struct snd_pcm_hw_params *hw_params)
 {
         struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
-        struct s6000_pcm_dma_params *par = soc_runtime->dai->cpu_dai->dma_data;
+        struct s6000_pcm_dma_params *par;
         int ret;
         ret = snd_pcm_lib_malloc_pages(substream,
                                        params_buffer_bytes(hw_params));
@@ -373,6 +385,8 @@ static int s6000_pcm_hw_params(struct snd_pcm_substream *substream,
                 return ret;
         }
 
+        par = snd_soc_dai_get_dma_data(soc_runtime->dai->cpu_dai, substream);
+
         if (par->same_rate) {
                 spin_lock(&par->lock);
                 if (par->rate == -1 ||
@@ -392,7 +406,8 @@ static int s6000_pcm_hw_params(struct snd_pcm_substream *substream,
 static int s6000_pcm_hw_free(struct snd_pcm_substream *substream)
 {
         struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
-        struct s6000_pcm_dma_params *par = soc_runtime->dai->cpu_dai->dma_data;
+        struct s6000_pcm_dma_params *par =
+                snd_soc_dai_get_dma_data(soc_runtime->dai->cpu_dai, substream);
 
         spin_lock(&par->lock);
         par->in_use &= ~(1 << substream->stream);
@@ -417,7 +432,8 @@ static struct snd_pcm_ops s6000_pcm_ops = {
 static void s6000_pcm_free(struct snd_pcm *pcm)
 {
         struct snd_soc_pcm_runtime *runtime = pcm->private_data;
-        struct s6000_pcm_dma_params *params = runtime->dai->cpu_dai->dma_data;
+        struct s6000_pcm_dma_params *params =
+                snd_soc_dai_get_dma_data(soc_runtime->dai->cpu_dai, substream);
 
         free_irq(params->irq, pcm);
         snd_pcm_lib_preallocate_free_for_all(pcm);
@@ -429,9 +445,11 @@ static int s6000_pcm_new(struct snd_card *card,
                          struct snd_soc_dai *dai, struct snd_pcm *pcm)
 {
         struct snd_soc_pcm_runtime *runtime = pcm->private_data;
-        struct s6000_pcm_dma_params *params = runtime->dai->cpu_dai->dma_data;
+        struct s6000_pcm_dma_params *params;
         int res;
 
+        params = snd_soc_dai_get_dma_data(soc_runtime->dai->cpu_dai, substream);
+
         if (!card->dev->dma_mask)
                 card->dev->dma_mask = &s6000_pcm_dmamask;
         if (!card->dev->coherent_dma_mask)
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index c8b0556ef431..d0efd5eaaa0b 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1548,7 +1548,8 @@ int snd_soc_new_pcms(struct snd_soc_device *socdev, int idx, const char *xid)
                         mutex_unlock(&codec->mutex);
                         return ret;
                 }
-                if (card->dai_link[i].codec_dai->ac97_control) {
+                /* Check for codec->ac97 to handle the ac97.c fun */
+                if (card->dai_link[i].codec_dai->ac97_control && codec->ac97) {
                         snd_ac97_dev_add_pdata(codec->ac97,
                                 card->dai_link[i].cpu_dai->ac97_pdata);
                 }