9 files changed, 170 insertions, 134 deletions

diff --git a/sound/soc/tegra/Kconfig b/sound/soc/tegra/Kconfig
index 8fc653ca3ab4..896292bb853f 100644
--- a/sound/soc/tegra/Kconfig
+++ b/sound/soc/tegra/Kconfig
@@ -1,6 +1,8 @@
 config SND_SOC_TEGRA
         tristate "SoC Audio for the Tegra System-on-Chip"
         depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST
+        depends on COMMON_CLK
+        depends on RESET_CONTROLLER
         select REGMAP_MMIO
         select SND_SOC_GENERIC_DMAENGINE_PCM
         help
diff --git a/sound/soc/tegra/tegra20_ac97.c b/sound/soc/tegra/tegra20_ac97.c
index ae27bcd586d2..d8b98d70ff41 100644
--- a/sound/soc/tegra/tegra20_ac97.c
+++ b/sound/soc/tegra/tegra20_ac97.c
@@ -313,7 +313,6 @@ static int tegra20_ac97_platform_probe(struct platform_device *pdev)
 {
         struct tegra20_ac97 *ac97;
         struct resource *mem;
-        u32 of_dma[2];
         void __iomem *regs;
         int ret = 0;
 
@@ -348,14 +347,6 @@ static int tegra20_ac97_platform_probe(struct platform_device *pdev)
                 goto err_clk_put;
         }
 
-        if (of_property_read_u32_array(pdev->dev.of_node,
-                                       "nvidia,dma-request-selector",
-                                       of_dma, 2) < 0) {
-                dev_err(&pdev->dev, "No DMA resource\n");
-                ret = -ENODEV;
-                goto err_clk_put;
-        }
-
         ac97->reset_gpio = of_get_named_gpio(pdev->dev.of_node,
                                              "nvidia,codec-reset-gpio", 0);
         if (gpio_is_valid(ac97->reset_gpio)) {
@@ -380,12 +371,10 @@ static int tegra20_ac97_platform_probe(struct platform_device *pdev)
         ac97->capture_dma_data.addr = mem->start + TEGRA20_AC97_FIFO_RX1;
         ac97->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
         ac97->capture_dma_data.maxburst = 4;
-        ac97->capture_dma_data.slave_id = of_dma[1];
 
         ac97->playback_dma_data.addr = mem->start + TEGRA20_AC97_FIFO_TX1;
         ac97->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
         ac97->playback_dma_data.maxburst = 4;
-        ac97->playback_dma_data.slave_id = of_dma[1];
 
         ret = tegra_asoc_utils_init(&ac97->util_data, &pdev->dev);
         if (ret)
diff --git a/sound/soc/tegra/tegra20_i2s.c b/sound/soc/tegra/tegra20_i2s.c
index 364bf6a907e1..1dc869c475e7 100644
--- a/sound/soc/tegra/tegra20_i2s.c
+++ b/sound/soc/tegra/tegra20_i2s.c
@@ -339,9 +339,7 @@ static const struct regmap_config tegra20_i2s_regmap_config = {
 static int tegra20_i2s_platform_probe(struct platform_device *pdev)
 {
         struct tegra20_i2s *i2s;
-        struct resource *mem, *memregion, *dmareq;
-        u32 of_dma[2];
-        u32 dma_ch;
+        struct resource *mem, *memregion;
         void __iomem *regs;
         int ret;
 
@@ -370,20 +368,6 @@ static int tegra20_i2s_platform_probe(struct platform_device *pdev)
                 goto err_clk_put;
         }
 
-        dmareq = platform_get_resource(pdev, IORESOURCE_DMA, 0);
-        if (!dmareq) {
-                if (of_property_read_u32_array(pdev->dev.of_node,
-                                        "nvidia,dma-request-selector",
-                                        of_dma, 2) < 0) {
-                        dev_err(&pdev->dev, "No DMA resource\n");
-                        ret = -ENODEV;
-                        goto err_clk_put;
-                }
-                dma_ch = of_dma[1];
-        } else {
-                dma_ch = dmareq->start;
-        }
-
         memregion = devm_request_mem_region(&pdev->dev, mem->start,
                                             resource_size(mem), DRV_NAME);
         if (!memregion) {
@@ -410,12 +394,10 @@ static int tegra20_i2s_platform_probe(struct platform_device *pdev)
         i2s->capture_dma_data.addr = mem->start + TEGRA20_I2S_FIFO2;
         i2s->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
         i2s->capture_dma_data.maxburst = 4;
-        i2s->capture_dma_data.slave_id = dma_ch;
 
         i2s->playback_dma_data.addr = mem->start + TEGRA20_I2S_FIFO1;
         i2s->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
         i2s->playback_dma_data.maxburst = 4;
-        i2s->playback_dma_data.slave_id = dma_ch;
 
         pm_runtime_enable(&pdev->dev);
         if (!pm_runtime_enabled(&pdev->dev)) {
diff --git a/sound/soc/tegra/tegra30_ahub.c b/sound/soc/tegra/tegra30_ahub.c
index 31154338c1eb..d6f4c9940e0c 100644
--- a/sound/soc/tegra/tegra30_ahub.c
+++ b/sound/soc/tegra/tegra30_ahub.c
@@ -24,8 +24,8 @@
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/regmap.h>
+#include <linux/reset.h>
 #include <linux/slab.h>
-#include <linux/clk/tegra.h>
 #include <sound/soc.h>
 #include "tegra30_ahub.h"
 
@@ -95,8 +95,8 @@ static int tegra30_ahub_runtime_resume(struct device *dev)
 }
 
 int tegra30_ahub_allocate_rx_fifo(enum tegra30_ahub_rxcif *rxcif,
-                                  dma_addr_t *fiforeg,
-                                  unsigned int *reqsel)
+                                  char *dmachan, int dmachan_len,
+                                  dma_addr_t *fiforeg)
 {
         int channel;
         u32 reg, val;
@@ -110,9 +110,11 @@ int tegra30_ahub_allocate_rx_fifo(enum tegra30_ahub_rxcif *rxcif,
         __set_bit(channel, ahub->rx_usage);
 
         *rxcif = TEGRA30_AHUB_RXCIF_APBIF_RX0 + channel;
+        snprintf(dmachan, dmachan_len, "rx%d", channel);
         *fiforeg = ahub->apbif_addr + TEGRA30_AHUB_CHANNEL_RXFIFO +
                    (channel * TEGRA30_AHUB_CHANNEL_RXFIFO_STRIDE);
-        *reqsel = ahub->dma_sel + channel;
+
+        pm_runtime_get_sync(ahub->dev);
 
         reg = TEGRA30_AHUB_CHANNEL_CTRL +
               (channel * TEGRA30_AHUB_CHANNEL_CTRL_STRIDE);
@@ -140,6 +142,8 @@ int tegra30_ahub_allocate_rx_fifo(enum tegra30_ahub_rxcif *rxcif,
               (channel * TEGRA30_AHUB_CIF_RX_CTRL_STRIDE);
         ahub->soc_data->set_audio_cif(ahub->regmap_apbif, reg, &cif_conf);
 
+        pm_runtime_put(ahub->dev);
+
         return 0;
 }
 EXPORT_SYMBOL_GPL(tegra30_ahub_allocate_rx_fifo);
@@ -149,12 +153,16 @@ int tegra30_ahub_enable_rx_fifo(enum tegra30_ahub_rxcif rxcif)
         int channel = rxcif - TEGRA30_AHUB_RXCIF_APBIF_RX0;
         int reg, val;
 
+        pm_runtime_get_sync(ahub->dev);
+
         reg = TEGRA30_AHUB_CHANNEL_CTRL +
               (channel * TEGRA30_AHUB_CHANNEL_CTRL_STRIDE);
         val = tegra30_apbif_read(reg);
         val |= TEGRA30_AHUB_CHANNEL_CTRL_RX_EN;
         tegra30_apbif_write(reg, val);
 
+        pm_runtime_put(ahub->dev);
+
         return 0;
 }
 EXPORT_SYMBOL_GPL(tegra30_ahub_enable_rx_fifo);
@@ -164,12 +172,16 @@ int tegra30_ahub_disable_rx_fifo(enum tegra30_ahub_rxcif rxcif)
         int channel = rxcif - TEGRA30_AHUB_RXCIF_APBIF_RX0;
         int reg, val;
 
+        pm_runtime_get_sync(ahub->dev);
+
         reg = TEGRA30_AHUB_CHANNEL_CTRL +
               (channel * TEGRA30_AHUB_CHANNEL_CTRL_STRIDE);
         val = tegra30_apbif_read(reg);
         val &= ~TEGRA30_AHUB_CHANNEL_CTRL_RX_EN;
         tegra30_apbif_write(reg, val);
 
+        pm_runtime_put(ahub->dev);
+
         return 0;
 }
 EXPORT_SYMBOL_GPL(tegra30_ahub_disable_rx_fifo);
@@ -185,8 +197,8 @@ int tegra30_ahub_free_rx_fifo(enum tegra30_ahub_rxcif rxcif)
 EXPORT_SYMBOL_GPL(tegra30_ahub_free_rx_fifo);
 
 int tegra30_ahub_allocate_tx_fifo(enum tegra30_ahub_txcif *txcif,
-                                  dma_addr_t *fiforeg,
-                                  unsigned int *reqsel)
+                                  char *dmachan, int dmachan_len,
+                                  dma_addr_t *fiforeg)
 {
         int channel;
         u32 reg, val;
@@ -200,9 +212,11 @@ int tegra30_ahub_allocate_tx_fifo(enum tegra30_ahub_txcif *txcif,
         __set_bit(channel, ahub->tx_usage);
 
         *txcif = TEGRA30_AHUB_TXCIF_APBIF_TX0 + channel;
+        snprintf(dmachan, dmachan_len, "tx%d", channel);
         *fiforeg = ahub->apbif_addr + TEGRA30_AHUB_CHANNEL_TXFIFO +
                    (channel * TEGRA30_AHUB_CHANNEL_TXFIFO_STRIDE);
-        *reqsel = ahub->dma_sel + channel;
+
+        pm_runtime_get_sync(ahub->dev);
 
         reg = TEGRA30_AHUB_CHANNEL_CTRL +
               (channel * TEGRA30_AHUB_CHANNEL_CTRL_STRIDE);
@@ -230,6 +244,8 @@ int tegra30_ahub_allocate_tx_fifo(enum tegra30_ahub_txcif *txcif,
               (channel * TEGRA30_AHUB_CIF_TX_CTRL_STRIDE);
         ahub->soc_data->set_audio_cif(ahub->regmap_apbif, reg, &cif_conf);
 
+        pm_runtime_put(ahub->dev);
+
         return 0;
 }
 EXPORT_SYMBOL_GPL(tegra30_ahub_allocate_tx_fifo);
@@ -239,12 +255,16 @@ int tegra30_ahub_enable_tx_fifo(enum tegra30_ahub_txcif txcif)
         int channel = txcif - TEGRA30_AHUB_TXCIF_APBIF_TX0;
         int reg, val;
 
+        pm_runtime_get_sync(ahub->dev);
+
         reg = TEGRA30_AHUB_CHANNEL_CTRL +
               (channel * TEGRA30_AHUB_CHANNEL_CTRL_STRIDE);
         val = tegra30_apbif_read(reg);
         val |= TEGRA30_AHUB_CHANNEL_CTRL_TX_EN;
         tegra30_apbif_write(reg, val);
 
+        pm_runtime_put(ahub->dev);
+
         return 0;
 }
 EXPORT_SYMBOL_GPL(tegra30_ahub_enable_tx_fifo);
@@ -254,12 +274,16 @@ int tegra30_ahub_disable_tx_fifo(enum tegra30_ahub_txcif txcif)
         int channel = txcif - TEGRA30_AHUB_TXCIF_APBIF_TX0;
         int reg, val;
 
+        pm_runtime_get_sync(ahub->dev);
+
         reg = TEGRA30_AHUB_CHANNEL_CTRL +
               (channel * TEGRA30_AHUB_CHANNEL_CTRL_STRIDE);
         val = tegra30_apbif_read(reg);
         val &= ~TEGRA30_AHUB_CHANNEL_CTRL_TX_EN;
         tegra30_apbif_write(reg, val);
 
+        pm_runtime_put(ahub->dev);
+
         return 0;
 }
 EXPORT_SYMBOL_GPL(tegra30_ahub_disable_tx_fifo);
@@ -280,10 +304,14 @@ int tegra30_ahub_set_rx_cif_source(enum tegra30_ahub_rxcif rxcif,
         int channel = rxcif - TEGRA30_AHUB_RXCIF_APBIF_RX0;
         int reg;
 
+        pm_runtime_get_sync(ahub->dev);
+
         reg = TEGRA30_AHUB_AUDIO_RX +
               (channel * TEGRA30_AHUB_AUDIO_RX_STRIDE);
         tegra30_audio_write(reg, 1 << txcif);
 
+        pm_runtime_put(ahub->dev);
+
         return 0;
 }
 EXPORT_SYMBOL_GPL(tegra30_ahub_set_rx_cif_source);
@@ -293,35 +321,51 @@ int tegra30_ahub_unset_rx_cif_source(enum tegra30_ahub_rxcif rxcif)
         int channel = rxcif - TEGRA30_AHUB_RXCIF_APBIF_RX0;
         int reg;
 
+        pm_runtime_get_sync(ahub->dev);
+
         reg = TEGRA30_AHUB_AUDIO_RX +
               (channel * TEGRA30_AHUB_AUDIO_RX_STRIDE);
         tegra30_audio_write(reg, 0);
 
+        pm_runtime_put(ahub->dev);
+
         return 0;
 }
 EXPORT_SYMBOL_GPL(tegra30_ahub_unset_rx_cif_source);
 
-#define CLK_LIST_MASK_TEGRA30   BIT(0)
-#define CLK_LIST_MASK_TEGRA114  BIT(1)
+#define MOD_LIST_MASK_TEGRA30   BIT(0)
+#define MOD_LIST_MASK_TEGRA114  BIT(1)
+#define MOD_LIST_MASK_TEGRA124  BIT(2)
 
-#define CLK_LIST_MASK_TEGRA30_OR_LATER \
-                (CLK_LIST_MASK_TEGRA30 | CLK_LIST_MASK_TEGRA114)
+#define MOD_LIST_MASK_TEGRA30_OR_LATER \
+                (MOD_LIST_MASK_TEGRA30 | MOD_LIST_MASK_TEGRA114 | \
+                        MOD_LIST_MASK_TEGRA124)
+#define MOD_LIST_MASK_TEGRA114_OR_LATER \
+                (MOD_LIST_MASK_TEGRA114 | MOD_LIST_MASK_TEGRA124)
 
 static const struct {
-        const char *clk_name;
-        u32 clk_list_mask;
-} configlink_clocks[] = {
-        { "i2s0", CLK_LIST_MASK_TEGRA30_OR_LATER },
-        { "i2s1", CLK_LIST_MASK_TEGRA30_OR_LATER },
-        { "i2s2", CLK_LIST_MASK_TEGRA30_OR_LATER },
-        { "i2s3", CLK_LIST_MASK_TEGRA30_OR_LATER },
-        { "i2s4", CLK_LIST_MASK_TEGRA30_OR_LATER },
-        { "dam0", CLK_LIST_MASK_TEGRA30_OR_LATER },
-        { "dam1", CLK_LIST_MASK_TEGRA30_OR_LATER },
-        { "dam2", CLK_LIST_MASK_TEGRA30_OR_LATER },
-        { "spdif_in", CLK_LIST_MASK_TEGRA30_OR_LATER },
-        { "amx", CLK_LIST_MASK_TEGRA114 },
-        { "adx", CLK_LIST_MASK_TEGRA114 },
+        const char *rst_name;
+        u32 mod_list_mask;
+} configlink_mods[] = {
+        { "i2s0", MOD_LIST_MASK_TEGRA30_OR_LATER },
+        { "i2s1", MOD_LIST_MASK_TEGRA30_OR_LATER },
+        { "i2s2", MOD_LIST_MASK_TEGRA30_OR_LATER },
+        { "i2s3", MOD_LIST_MASK_TEGRA30_OR_LATER },
+        { "i2s4", MOD_LIST_MASK_TEGRA30_OR_LATER },
+        { "dam0", MOD_LIST_MASK_TEGRA30_OR_LATER },
+        { "dam1", MOD_LIST_MASK_TEGRA30_OR_LATER },
+        { "dam2", MOD_LIST_MASK_TEGRA30_OR_LATER },
+        { "spdif", MOD_LIST_MASK_TEGRA30_OR_LATER },
+        { "amx", MOD_LIST_MASK_TEGRA114_OR_LATER },
+        { "adx", MOD_LIST_MASK_TEGRA114_OR_LATER },
+        { "amx1", MOD_LIST_MASK_TEGRA124 },
+        { "adx1", MOD_LIST_MASK_TEGRA124 },
+        { "afc0", MOD_LIST_MASK_TEGRA124 },
+        { "afc1", MOD_LIST_MASK_TEGRA124 },
+        { "afc2", MOD_LIST_MASK_TEGRA124 },
+        { "afc3", MOD_LIST_MASK_TEGRA124 },
+        { "afc4", MOD_LIST_MASK_TEGRA124 },
+        { "afc5", MOD_LIST_MASK_TEGRA124 },
 };
 
 #define LAST_REG(name) \
@@ -450,17 +494,17 @@ static const struct regmap_config tegra30_ahub_ahub_regmap_config = {
 };
 
 static struct tegra30_ahub_soc_data soc_data_tegra30 = {
-        .clk_list_mask = CLK_LIST_MASK_TEGRA30,
+        .mod_list_mask = MOD_LIST_MASK_TEGRA30,
         .set_audio_cif = tegra30_ahub_set_cif,
 };
 
 static struct tegra30_ahub_soc_data soc_data_tegra114 = {
-        .clk_list_mask = CLK_LIST_MASK_TEGRA114,
+        .mod_list_mask = MOD_LIST_MASK_TEGRA114,
         .set_audio_cif = tegra30_ahub_set_cif,
 };
 
 static struct tegra30_ahub_soc_data soc_data_tegra124 = {
-        .clk_list_mask = CLK_LIST_MASK_TEGRA114,
+        .mod_list_mask = MOD_LIST_MASK_TEGRA124,
         .set_audio_cif = tegra124_ahub_set_cif,
 };
 
@@ -475,10 +519,9 @@ static int tegra30_ahub_probe(struct platform_device *pdev)
 {
         const struct of_device_id *match;
         const struct tegra30_ahub_soc_data *soc_data;
-        struct clk *clk;
+        struct reset_control *rst;
         int i;
         struct resource *res0, *res1, *region;
-        u32 of_dma[2];
         void __iomem *regs_apbif, *regs_ahub;
         int ret = 0;
 
@@ -495,19 +538,24 @@ static int tegra30_ahub_probe(struct platform_device *pdev)
          * operate correctly, all devices on this bus must be out of reset.
          * Ensure that here.
          */
-        for (i = 0; i < ARRAY_SIZE(configlink_clocks); i++) {
-                if (!(configlink_clocks[i].clk_list_mask &
-                                        soc_data->clk_list_mask))
+        for (i = 0; i < ARRAY_SIZE(configlink_mods); i++) {
+                if (!(configlink_mods[i].mod_list_mask &
+                                        soc_data->mod_list_mask))
                         continue;
-                clk = clk_get(&pdev->dev, configlink_clocks[i].clk_name);
-                if (IS_ERR(clk)) {
-                        dev_err(&pdev->dev, "Can't get clock %s\n",
-                                configlink_clocks[i].clk_name);
-                        ret = PTR_ERR(clk);
+
+                rst = reset_control_get(&pdev->dev,
+                                        configlink_mods[i].rst_name);
+                if (IS_ERR(rst)) {
+                        dev_err(&pdev->dev, "Can't get reset %s\n",
+                                configlink_mods[i].rst_name);
+                        ret = PTR_ERR(rst);
                         goto err;
                 }
-                tegra_periph_reset_deassert(clk);
-                clk_put(clk);
+
+                ret = reset_control_deassert(rst);
+                reset_control_put(rst);
+                if (ret)
+                        goto err;
         }
 
         ahub = devm_kzalloc(&pdev->dev, sizeof(struct tegra30_ahub),
@@ -536,16 +584,6 @@ static int tegra30_ahub_probe(struct platform_device *pdev)
                 goto err_clk_put_d_audio;
         }
 
-        if (of_property_read_u32_array(pdev->dev.of_node,
-                                "nvidia,dma-request-selector",
-                                of_dma, 2) < 0) {
-                dev_err(&pdev->dev,
-                        "Missing property nvidia,dma-request-selector\n");
-                ret = -ENODEV;
-                goto err_clk_put_d_audio;
-        }
-        ahub->dma_sel = of_dma[1];
-
         res0 = platform_get_resource(pdev, IORESOURCE_MEM, 0);
         if (!res0) {
                 dev_err(&pdev->dev, "No apbif memory resource\n");
diff --git a/sound/soc/tegra/tegra30_ahub.h b/sound/soc/tegra/tegra30_ahub.h
index d67321d90faa..fd7ba75ed814 100644
--- a/sound/soc/tegra/tegra30_ahub.h
+++ b/sound/soc/tegra/tegra30_ahub.h
@@ -465,15 +465,15 @@ enum tegra30_ahub_rxcif {
 };
 
 extern int tegra30_ahub_allocate_rx_fifo(enum tegra30_ahub_rxcif *rxcif,
-                                         dma_addr_t *fiforeg,
-                                         unsigned int *reqsel);
+                                         char *dmachan, int dmachan_len,
+                                         dma_addr_t *fiforeg);
 extern int tegra30_ahub_enable_rx_fifo(enum tegra30_ahub_rxcif rxcif);
 extern int tegra30_ahub_disable_rx_fifo(enum tegra30_ahub_rxcif rxcif);
 extern int tegra30_ahub_free_rx_fifo(enum tegra30_ahub_rxcif rxcif);
 
 extern int tegra30_ahub_allocate_tx_fifo(enum tegra30_ahub_txcif *txcif,
-                                         dma_addr_t *fiforeg,
-                                         unsigned int *reqsel);
+                                         char *dmachan, int dmachan_len,
+                                         dma_addr_t *fiforeg);
 extern int tegra30_ahub_enable_tx_fifo(enum tegra30_ahub_txcif txcif);
 extern int tegra30_ahub_disable_tx_fifo(enum tegra30_ahub_txcif txcif);
 extern int tegra30_ahub_free_tx_fifo(enum tegra30_ahub_txcif txcif);
@@ -502,7 +502,7 @@ void tegra124_ahub_set_cif(struct regmap *regmap, unsigned int reg,
                            struct tegra30_ahub_cif_conf *conf);
 
 struct tegra30_ahub_soc_data {
-        u32 clk_list_mask;
+        u32 mod_list_mask;
         void (*set_audio_cif)(struct regmap *regmap,
                               unsigned int reg,
                               struct tegra30_ahub_cif_conf *conf);
@@ -524,7 +524,6 @@ struct tegra30_ahub {
         struct device *dev;
         struct clk *clk_d_audio;
         struct clk *clk_apbif;
-        int dma_sel;
         resource_size_t apbif_addr;
         struct regmap *regmap_apbif;
         struct regmap *regmap_ahub;
diff --git a/sound/soc/tegra/tegra30_i2s.c b/sound/soc/tegra/tegra30_i2s.c
index 231a785b3921..362e8f728ddf 100644
--- a/sound/soc/tegra/tegra30_i2s.c
+++ b/sound/soc/tegra/tegra30_i2s.c
@@ -73,47 +73,6 @@ static int tegra30_i2s_runtime_resume(struct device *dev)
         return 0;
 }
 
-static int tegra30_i2s_startup(struct snd_pcm_substream *substream,
-                        struct snd_soc_dai *dai)
-{
-        struct tegra30_i2s *i2s = snd_soc_dai_get_drvdata(dai);
-        int ret;
-
-        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-                ret = tegra30_ahub_allocate_tx_fifo(&i2s->playback_fifo_cif,
-                                        &i2s->playback_dma_data.addr,
-                                        &i2s->playback_dma_data.slave_id);
-                i2s->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
-                i2s->playback_dma_data.maxburst = 4;
-                tegra30_ahub_set_rx_cif_source(i2s->playback_i2s_cif,
-                                               i2s->playback_fifo_cif);
-        } else {
-                ret = tegra30_ahub_allocate_rx_fifo(&i2s->capture_fifo_cif,
-                                        &i2s->capture_dma_data.addr,
-                                        &i2s->capture_dma_data.slave_id);
-                i2s->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
-                i2s->capture_dma_data.maxburst = 4;
-                tegra30_ahub_set_rx_cif_source(i2s->capture_fifo_cif,
-                                               i2s->capture_i2s_cif);
-        }
-
-        return ret;
-}
-
-static void tegra30_i2s_shutdown(struct snd_pcm_substream *substream,
-                        struct snd_soc_dai *dai)
-{
-        struct tegra30_i2s *i2s = snd_soc_dai_get_drvdata(dai);
-
-        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-                tegra30_ahub_unset_rx_cif_source(i2s->playback_i2s_cif);
-                tegra30_ahub_free_tx_fifo(i2s->playback_fifo_cif);
-        } else {
-                tegra30_ahub_unset_rx_cif_source(i2s->capture_fifo_cif);
-                tegra30_ahub_free_rx_fifo(i2s->capture_fifo_cif);
-        }
-}
-
 static int tegra30_i2s_set_fmt(struct snd_soc_dai *dai,
                                 unsigned int fmt)
 {
@@ -317,8 +276,6 @@ static int tegra30_i2s_probe(struct snd_soc_dai *dai)
 }
 
 static struct snd_soc_dai_ops tegra30_i2s_dai_ops = {
-        .startup        = tegra30_i2s_startup,
-        .shutdown       = tegra30_i2s_shutdown,
         .set_fmt        = tegra30_i2s_set_fmt,
         .hw_params      = tegra30_i2s_hw_params,
         .trigger        = tegra30_i2s_trigger,
@@ -499,15 +456,51 @@ static int tegra30_i2s_platform_probe(struct platform_device *pdev)
                         goto err_pm_disable;
         }
 
+        i2s->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
+        i2s->playback_dma_data.maxburst = 4;
+        ret = tegra30_ahub_allocate_tx_fifo(&i2s->playback_fifo_cif,
+                                            i2s->playback_dma_chan,
+                                            sizeof(i2s->playback_dma_chan),
+                                            &i2s->playback_dma_data.addr);
+        if (ret) {
+                dev_err(&pdev->dev, "Could not alloc TX FIFO: %d\n", ret);
+                goto err_suspend;
+        }
+        ret = tegra30_ahub_set_rx_cif_source(i2s->playback_i2s_cif,
+                                             i2s->playback_fifo_cif);
+        if (ret) {
+                dev_err(&pdev->dev, "Could not route TX FIFO: %d\n", ret);
+                goto err_free_tx_fifo;
+        }
+
+        i2s->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
+        i2s->capture_dma_data.maxburst = 4;
+        ret = tegra30_ahub_allocate_rx_fifo(&i2s->capture_fifo_cif,
+                                            i2s->capture_dma_chan,
+                                            sizeof(i2s->capture_dma_chan),
+                                            &i2s->capture_dma_data.addr);
+        if (ret) {
+                dev_err(&pdev->dev, "Could not alloc RX FIFO: %d\n", ret);
+                goto err_unroute_tx_fifo;
+        }
+        ret = tegra30_ahub_set_rx_cif_source(i2s->capture_fifo_cif,
+                                             i2s->capture_i2s_cif);
+        if (ret) {
+                dev_err(&pdev->dev, "Could not route TX FIFO: %d\n", ret);
+                goto err_free_rx_fifo;
+        }
+
         ret = snd_soc_register_component(&pdev->dev, &tegra30_i2s_component,
                                    &i2s->dai, 1);
         if (ret) {
                 dev_err(&pdev->dev, "Could not register DAI: %d\n", ret);
                 ret = -ENOMEM;
-                goto err_suspend;
+                goto err_unroute_rx_fifo;
         }
 
-        ret = tegra_pcm_platform_register(&pdev->dev);
+        ret = tegra_pcm_platform_register_with_chan_names(&pdev->dev,
+                                &i2s->dma_config, i2s->playback_dma_chan,
+                                i2s->capture_dma_chan);
         if (ret) {
                 dev_err(&pdev->dev, "Could not register PCM: %d\n", ret);
                 goto err_unregister_component;
@@ -517,6 +510,14 @@ static int tegra30_i2s_platform_probe(struct platform_device *pdev)
 
 err_unregister_component:
         snd_soc_unregister_component(&pdev->dev);
+err_unroute_rx_fifo:
+        tegra30_ahub_unset_rx_cif_source(i2s->capture_fifo_cif);
+err_free_rx_fifo:
+        tegra30_ahub_free_rx_fifo(i2s->capture_fifo_cif);
+err_unroute_tx_fifo:
+        tegra30_ahub_unset_rx_cif_source(i2s->playback_i2s_cif);
+err_free_tx_fifo:
+        tegra30_ahub_free_tx_fifo(i2s->playback_fifo_cif);
 err_suspend:
         if (!pm_runtime_status_suspended(&pdev->dev))
                 tegra30_i2s_runtime_suspend(&pdev->dev);
@@ -539,6 +540,12 @@ static int tegra30_i2s_platform_remove(struct platform_device *pdev)
         tegra_pcm_platform_unregister(&pdev->dev);
         snd_soc_unregister_component(&pdev->dev);
 
+        tegra30_ahub_unset_rx_cif_source(i2s->capture_fifo_cif);
+        tegra30_ahub_free_rx_fifo(i2s->capture_fifo_cif);
+
+        tegra30_ahub_unset_rx_cif_source(i2s->playback_i2s_cif);
+        tegra30_ahub_free_tx_fifo(i2s->playback_fifo_cif);
+
         clk_put(i2s->clk_i2s);
 
         return 0;
diff --git a/sound/soc/tegra/tegra30_i2s.h b/sound/soc/tegra/tegra30_i2s.h
index 4d0b0a30dbfb..774fc6ad2026 100644
--- a/sound/soc/tegra/tegra30_i2s.h
+++ b/sound/soc/tegra/tegra30_i2s.h
@@ -238,11 +238,14 @@ struct tegra30_i2s {
         struct clk *clk_i2s;
         enum tegra30_ahub_txcif capture_i2s_cif;
         enum tegra30_ahub_rxcif capture_fifo_cif;
+        char capture_dma_chan[8];
         struct snd_dmaengine_dai_dma_data capture_dma_data;
         enum tegra30_ahub_rxcif playback_i2s_cif;
         enum tegra30_ahub_txcif playback_fifo_cif;
+        char playback_dma_chan[8];
         struct snd_dmaengine_dai_dma_data playback_dma_data;
         struct regmap *regmap;
+        struct snd_dmaengine_pcm_config dma_config;
 };
 
 #endif
diff --git a/sound/soc/tegra/tegra_pcm.c b/sound/soc/tegra/tegra_pcm.c
index 7b2d23ba69b3..7ce5c334a660 100644
--- a/sound/soc/tegra/tegra_pcm.c
+++ b/sound/soc/tegra/tegra_pcm.c
@@ -61,12 +61,23 @@ static const struct snd_dmaengine_pcm_config tegra_dmaengine_pcm_config = {
 
 int tegra_pcm_platform_register(struct device *dev)
 {
-        return snd_dmaengine_pcm_register(dev, &tegra_dmaengine_pcm_config,
-                        SND_DMAENGINE_PCM_FLAG_NO_DT |
-                        SND_DMAENGINE_PCM_FLAG_COMPAT);
+        return snd_dmaengine_pcm_register(dev, &tegra_dmaengine_pcm_config, 0);
 }
 EXPORT_SYMBOL_GPL(tegra_pcm_platform_register);
 
+int tegra_pcm_platform_register_with_chan_names(struct device *dev,
+                                struct snd_dmaengine_pcm_config *config,
+                                char *txdmachan, char *rxdmachan)
+{
+        *config = tegra_dmaengine_pcm_config;
+        config->dma_dev = dev->parent;
+        config->chan_names[0] = txdmachan;
+        config->chan_names[1] = rxdmachan;
+
+        return snd_dmaengine_pcm_register(dev, config, 0);
+}
+EXPORT_SYMBOL_GPL(tegra_pcm_platform_register_with_chan_names);
+
 void tegra_pcm_platform_unregister(struct device *dev)
 {
         return snd_dmaengine_pcm_unregister(dev);
diff --git a/sound/soc/tegra/tegra_pcm.h b/sound/soc/tegra/tegra_pcm.h
index 68ad901714a9..7883dec748a3 100644
--- a/sound/soc/tegra/tegra_pcm.h
+++ b/sound/soc/tegra/tegra_pcm.h
@@ -31,7 +31,12 @@
 #ifndef __TEGRA_PCM_H__
 #define __TEGRA_PCM_H__
 
+struct snd_dmaengine_pcm_config;
+
 int tegra_pcm_platform_register(struct device *dev);
+int tegra_pcm_platform_register_with_chan_names(struct device *dev,
+                                struct snd_dmaengine_pcm_config *config,
+                                char *txdmachan, char *rxdmachan);
 void tegra_pcm_platform_unregister(struct device *dev);
 
 #endif