Adding upstream version 5.10.209.upstream/5.10.209upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1708 insertions, 0 deletions

diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c
new file mode 100644
index 000000000..df53d4ea8
--- /dev/null
+++ b/sound/soc/samsung/i2s.c
@@ -0,0 +1,1708 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// ALSA SoC Audio Layer - Samsung I2S Controller driver
+//
+// Copyright (c) 2010 Samsung Electronics Co. Ltd.
+//	Jaswinder Singh <jassisinghbrar@gmail.com>
+
+#include <dt-bindings/sound/samsung-i2s.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_gpio.h>
+#include <linux/pm_runtime.h>
+
+#include <sound/soc.h>
+#include <sound/pcm_params.h>
+
+#include <linux/platform_data/asoc-s3c.h>
+
+#include "dma.h"
+#include "idma.h"
+#include "i2s.h"
+#include "i2s-regs.h"
+
+#define msecs_to_loops(t) (loops_per_jiffy / 1000 * HZ * t)
+
+#define SAMSUNG_I2S_ID_PRIMARY		1
+#define SAMSUNG_I2S_ID_SECONDARY	2
+
+struct samsung_i2s_variant_regs {
+	unsigned int	bfs_off;
+	unsigned int	rfs_off;
+	unsigned int	sdf_off;
+	unsigned int	txr_off;
+	unsigned int	rclksrc_off;
+	unsigned int	mss_off;
+	unsigned int	cdclkcon_off;
+	unsigned int	lrp_off;
+	unsigned int	bfs_mask;
+	unsigned int	rfs_mask;
+	unsigned int	ftx0cnt_off;
+};
+
+struct samsung_i2s_dai_data {
+	u32 quirks;
+	unsigned int pcm_rates;
+	const struct samsung_i2s_variant_regs *i2s_variant_regs;
+};
+
+struct i2s_dai {
+	/* Platform device for this DAI */
+	struct platform_device *pdev;
+
+	/* Frame clock */
+	unsigned frmclk;
+	/*
+	 * Specifically requested RCLK, BCLK by machine driver.
+	 * 0 indicates CPU driver is free to choose any value.
+	 */
+	unsigned rfs, bfs;
+	/* Pointer to the Primary_Fifo if this is Sec_Fifo, NULL otherwise */
+	struct i2s_dai *pri_dai;
+	/* Pointer to the Secondary_Fifo if it has one, NULL otherwise */
+	struct i2s_dai *sec_dai;
+
+#define DAI_OPENED	(1 << 0) /* DAI is opened */
+#define DAI_MANAGER	(1 << 1) /* DAI is the manager */
+	unsigned mode;
+
+	/* Driver for this DAI */
+	struct snd_soc_dai_driver *drv;
+
+	/* DMA parameters */
+	struct snd_dmaengine_dai_dma_data dma_playback;
+	struct snd_dmaengine_dai_dma_data dma_capture;
+	struct snd_dmaengine_dai_dma_data idma_playback;
+	dma_filter_fn filter;
+
+	struct samsung_i2s_priv *priv;
+};
+
+struct samsung_i2s_priv {
+	struct platform_device *pdev;
+	struct platform_device *pdev_sec;
+
+	/* Lock for cross interface checks */
+	spinlock_t pcm_lock;
+
+	/* CPU DAIs and their corresponding drivers */
+	struct i2s_dai *dai;
+	struct snd_soc_dai_driver *dai_drv;
+	int num_dais;
+
+	/* The I2S controller's core clock */
+	struct clk *clk;
+
+	/* Clock for generating I2S signals */
+	struct clk *op_clk;
+
+	/* Rate of RCLK source clock */
+	unsigned long rclk_srcrate;
+
+	/* Cache of selected I2S registers for system suspend */
+	u32 suspend_i2smod;
+	u32 suspend_i2scon;
+	u32 suspend_i2spsr;
+
+	const struct samsung_i2s_variant_regs *variant_regs;
+	u32 quirks;
+
+	/* The clock provider's data */
+	struct clk *clk_table[3];
+	struct clk_onecell_data clk_data;
+
+	/* Spinlock protecting member fields below */
+	spinlock_t lock;
+
+	/* Memory mapped SFR region */
+	void __iomem *addr;
+
+	/* A flag indicating the I2S slave mode operation */
+	bool slave_mode;
+};
+
+/* Returns true if this is the 'overlay' stereo DAI */
+static inline bool is_secondary(struct i2s_dai *i2s)
+{
+	return i2s->drv->id == SAMSUNG_I2S_ID_SECONDARY;
+}
+
+/* If this interface of the controller is transmitting data */
+static inline bool tx_active(struct i2s_dai *i2s)
+{
+	u32 active;
+
+	if (!i2s)
+		return false;
+
+	active = readl(i2s->priv->addr + I2SCON);
+
+	if (is_secondary(i2s))
+		active &= CON_TXSDMA_ACTIVE;
+	else
+		active &= CON_TXDMA_ACTIVE;
+
+	return active ? true : false;
+}
+
+/* Return pointer to the other DAI */
+static inline struct i2s_dai *get_other_dai(struct i2s_dai *i2s)
+{
+	return i2s->pri_dai ? : i2s->sec_dai;
+}
+
+/* If the other interface of the controller is transmitting data */
+static inline bool other_tx_active(struct i2s_dai *i2s)
+{
+	struct i2s_dai *other = get_other_dai(i2s);
+
+	return tx_active(other);
+}
+
+/* If any interface of the controller is transmitting data */
+static inline bool any_tx_active(struct i2s_dai *i2s)
+{
+	return tx_active(i2s) || other_tx_active(i2s);
+}
+
+/* If this interface of the controller is receiving data */
+static inline bool rx_active(struct i2s_dai *i2s)
+{
+	u32 active;
+
+	if (!i2s)
+		return false;
+
+	active = readl(i2s->priv->addr + I2SCON) & CON_RXDMA_ACTIVE;
+
+	return active ? true : false;
+}
+
+/* If the other interface of the controller is receiving data */
+static inline bool other_rx_active(struct i2s_dai *i2s)
+{
+	struct i2s_dai *other = get_other_dai(i2s);
+
+	return rx_active(other);
+}
+
+/* If any interface of the controller is receiving data */
+static inline bool any_rx_active(struct i2s_dai *i2s)
+{
+	return rx_active(i2s) || other_rx_active(i2s);
+}
+
+/* If the other DAI is transmitting or receiving data */
+static inline bool other_active(struct i2s_dai *i2s)
+{
+	return other_rx_active(i2s) || other_tx_active(i2s);
+}
+
+/* If this DAI is transmitting or receiving data */
+static inline bool this_active(struct i2s_dai *i2s)
+{
+	return tx_active(i2s) || rx_active(i2s);
+}
+
+/* If the controller is active anyway */
+static inline bool any_active(struct i2s_dai *i2s)
+{
+	return this_active(i2s) || other_active(i2s);
+}
+
+static inline struct i2s_dai *to_info(struct snd_soc_dai *dai)
+{
+	struct samsung_i2s_priv *priv = snd_soc_dai_get_drvdata(dai);
+
+	return &priv->dai[dai->id - 1];
+}
+
+static inline bool is_opened(struct i2s_dai *i2s)
+{
+	if (i2s && (i2s->mode & DAI_OPENED))
+		return true;
+	else
+		return false;
+}
+
+static inline bool is_manager(struct i2s_dai *i2s)
+{
+	if (is_opened(i2s) && (i2s->mode & DAI_MANAGER))
+		return true;
+	else
+		return false;
+}
+
+/* Read RCLK of I2S (in multiples of LRCLK) */
+static inline unsigned get_rfs(struct i2s_dai *i2s)
+{
+	struct samsung_i2s_priv *priv = i2s->priv;
+	u32 rfs;
+
+	rfs = readl(priv->addr + I2SMOD) >> priv->variant_regs->rfs_off;
+	rfs &= priv->variant_regs->rfs_mask;
+
+	switch (rfs) {
+	case 7: return 192;
+	case 6: return 96;
+	case 5: return 128;
+	case 4: return 64;
+	case 3:	return 768;
+	case 2: return 384;
+	case 1:	return 512;
+	default: return 256;
+	}
+}
+
+/* Write RCLK of I2S (in multiples of LRCLK) */
+static inline void set_rfs(struct i2s_dai *i2s, unsigned rfs)
+{
+	struct samsung_i2s_priv *priv = i2s->priv;
+	u32 mod = readl(priv->addr + I2SMOD);
+	int rfs_shift = priv->variant_regs->rfs_off;
+
+	mod &= ~(priv->variant_regs->rfs_mask << rfs_shift);
+
+	switch (rfs) {
+	case 192:
+		mod |= (EXYNOS7_MOD_RCLK_192FS << rfs_shift);
+		break;
+	case 96:
+		mod |= (EXYNOS7_MOD_RCLK_96FS << rfs_shift);
+		break;
+	case 128:
+		mod |= (EXYNOS7_MOD_RCLK_128FS << rfs_shift);
+		break;
+	case 64:
+		mod |= (EXYNOS7_MOD_RCLK_64FS << rfs_shift);
+		break;
+	case 768:
+		mod |= (MOD_RCLK_768FS << rfs_shift);
+		break;
+	case 512:
+		mod |= (MOD_RCLK_512FS << rfs_shift);
+		break;
+	case 384:
+		mod |= (MOD_RCLK_384FS << rfs_shift);
+		break;
+	default:
+		mod |= (MOD_RCLK_256FS << rfs_shift);
+		break;
+	}
+
+	writel(mod, priv->addr + I2SMOD);
+}
+
+/* Read bit-clock of I2S (in multiples of LRCLK) */
+static inline unsigned get_bfs(struct i2s_dai *i2s)
+{
+	struct samsung_i2s_priv *priv = i2s->priv;
+	u32 bfs;
+
+	bfs = readl(priv->addr + I2SMOD) >> priv->variant_regs->bfs_off;
+	bfs &= priv->variant_regs->bfs_mask;
+
+	switch (bfs) {
+	case 8: return 256;
+	case 7: return 192;
+	case 6: return 128;
+	case 5: return 96;
+	case 4: return 64;
+	case 3: return 24;
+	case 2: return 16;
+	case 1:	return 48;
+	default: return 32;
+	}
+}
+
+/* Write bit-clock of I2S (in multiples of LRCLK) */
+static inline void set_bfs(struct i2s_dai *i2s, unsigned bfs)
+{
+	struct samsung_i2s_priv *priv = i2s->priv;
+	u32 mod = readl(priv->addr + I2SMOD);
+	int tdm = priv->quirks & QUIRK_SUPPORTS_TDM;
+	int bfs_shift = priv->variant_regs->bfs_off;
+
+	/* Non-TDM I2S controllers do not support BCLK > 48 * FS */
+	if (!tdm && bfs > 48) {
+		dev_err(&i2s->pdev->dev, "Unsupported BCLK divider\n");
+		return;
+	}
+
+	mod &= ~(priv->variant_regs->bfs_mask << bfs_shift);
+
+	switch (bfs) {
+	case 48:
+		mod |= (MOD_BCLK_48FS << bfs_shift);
+		break;
+	case 32:
+		mod |= (MOD_BCLK_32FS << bfs_shift);
+		break;
+	case 24:
+		mod |= (MOD_BCLK_24FS << bfs_shift);
+		break;
+	case 16:
+		mod |= (MOD_BCLK_16FS << bfs_shift);
+		break;
+	case 64:
+		mod |= (EXYNOS5420_MOD_BCLK_64FS << bfs_shift);
+		break;
+	case 96:
+		mod |= (EXYNOS5420_MOD_BCLK_96FS << bfs_shift);
+		break;
+	case 128:
+		mod |= (EXYNOS5420_MOD_BCLK_128FS << bfs_shift);
+		break;
+	case 192:
+		mod |= (EXYNOS5420_MOD_BCLK_192FS << bfs_shift);
+		break;
+	case 256:
+		mod |= (EXYNOS5420_MOD_BCLK_256FS << bfs_shift);
+		break;
+	default:
+		dev_err(&i2s->pdev->dev, "Wrong BCLK Divider!\n");
+		return;
+	}
+
+	writel(mod, priv->addr + I2SMOD);
+}
+
+/* Sample size */
+static inline int get_blc(struct i2s_dai *i2s)
+{
+	int blc = readl(i2s->priv->addr + I2SMOD);
+
+	blc = (blc >> 13) & 0x3;
+
+	switch (blc) {
+	case 2: return 24;
+	case 1:	return 8;
+	default: return 16;
+	}
+}
+
+/* TX channel control */
+static void i2s_txctrl(struct i2s_dai *i2s, int on)
+{
+	struct samsung_i2s_priv *priv = i2s->priv;
+	void __iomem *addr = priv->addr;
+	int txr_off = priv->variant_regs->txr_off;
+	u32 con = readl(addr + I2SCON);
+	u32 mod = readl(addr + I2SMOD) & ~(3 << txr_off);
+
+	if (on) {
+		con |= CON_ACTIVE;
+		con &= ~CON_TXCH_PAUSE;
+
+		if (is_secondary(i2s)) {
+			con |= CON_TXSDMA_ACTIVE;
+			con &= ~CON_TXSDMA_PAUSE;
+		} else {
+			con |= CON_TXDMA_ACTIVE;
+			con &= ~CON_TXDMA_PAUSE;
+		}
+
+		if (any_rx_active(i2s))
+			mod |= 2 << txr_off;
+		else
+			mod |= 0 << txr_off;
+	} else {
+		if (is_secondary(i2s)) {
+			con |=  CON_TXSDMA_PAUSE;
+			con &= ~CON_TXSDMA_ACTIVE;
+		} else {
+			con |=  CON_TXDMA_PAUSE;
+			con &= ~CON_TXDMA_ACTIVE;
+		}
+
+		if (other_tx_active(i2s)) {
+			writel(con, addr + I2SCON);
+			return;
+		}
+
+		con |=  CON_TXCH_PAUSE;
+
+		if (any_rx_active(i2s))
+			mod |= 1 << txr_off;
+		else
+			con &= ~CON_ACTIVE;
+	}
+
+	writel(mod, addr + I2SMOD);
+	writel(con, addr + I2SCON);
+}
+
+/* RX Channel Control */
+static void i2s_rxctrl(struct i2s_dai *i2s, int on)
+{
+	struct samsung_i2s_priv *priv = i2s->priv;
+	void __iomem *addr = priv->addr;
+	int txr_off = priv->variant_regs->txr_off;
+	u32 con = readl(addr + I2SCON);
+	u32 mod = readl(addr + I2SMOD) & ~(3 << txr_off);
+
+	if (on) {
+		con |= CON_RXDMA_ACTIVE | CON_ACTIVE;
+		con &= ~(CON_RXDMA_PAUSE | CON_RXCH_PAUSE);
+
+		if (any_tx_active(i2s))
+			mod |= 2 << txr_off;
+		else
+			mod |= 1 << txr_off;
+	} else {
+		con |=  CON_RXDMA_PAUSE | CON_RXCH_PAUSE;
+		con &= ~CON_RXDMA_ACTIVE;
+
+		if (any_tx_active(i2s))
+			mod |= 0 << txr_off;
+		else
+			con &= ~CON_ACTIVE;
+	}
+
+	writel(mod, addr + I2SMOD);
+	writel(con, addr + I2SCON);
+}
+
+/* Flush FIFO of an interface */
+static inline void i2s_fifo(struct i2s_dai *i2s, u32 flush)
+{
+	void __iomem *fic;
+	u32 val;
+
+	if (!i2s)
+		return;
+
+	if (is_secondary(i2s))
+		fic = i2s->priv->addr + I2SFICS;
+	else
+		fic = i2s->priv->addr + I2SFIC;
+
+	/* Flush the FIFO */
+	writel(readl(fic) | flush, fic);
+
+	/* Be patient */
+	val = msecs_to_loops(1) / 1000; /* 1 usec */
+	while (--val)
+		cpu_relax();
+
+	writel(readl(fic) & ~flush, fic);
+}
+
+static int i2s_set_sysclk(struct snd_soc_dai *dai, int clk_id, unsigned int rfs,
+			  int dir)
+{
+	struct samsung_i2s_priv *priv = snd_soc_dai_get_drvdata(dai);
+	struct i2s_dai *i2s = to_info(dai);
+	struct i2s_dai *other = get_other_dai(i2s);
+	const struct samsung_i2s_variant_regs *i2s_regs = priv->variant_regs;
+	unsigned int cdcon_mask = 1 << i2s_regs->cdclkcon_off;
+	unsigned int rsrc_mask = 1 << i2s_regs->rclksrc_off;
+	u32 mod, mask, val = 0;
+	unsigned long flags;
+	int ret = 0;
+
+	pm_runtime_get_sync(dai->dev);
+
+	spin_lock_irqsave(&priv->lock, flags);
+	mod = readl(priv->addr + I2SMOD);
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	switch (clk_id) {
+	case SAMSUNG_I2S_OPCLK:
+		mask = MOD_OPCLK_MASK;
+		val = (dir << MOD_OPCLK_SHIFT) & MOD_OPCLK_MASK;
+		break;
+	case SAMSUNG_I2S_CDCLK:
+		mask = 1 << i2s_regs->cdclkcon_off;
+		/* Shouldn't matter in GATING(CLOCK_IN) mode */
+		if (dir == SND_SOC_CLOCK_IN)
+			rfs = 0;
+
+		if ((rfs && other && other->rfs && (other->rfs != rfs)) ||
+				(any_active(i2s) &&
+				(((dir == SND_SOC_CLOCK_IN)
+					&& !(mod & cdcon_mask)) ||
+				((dir == SND_SOC_CLOCK_OUT)
+					&& (mod & cdcon_mask))))) {
+			dev_err(&i2s->pdev->dev,
+				"%s:%d Other DAI busy\n", __func__, __LINE__);
+			ret = -EAGAIN;
+			goto err;
+		}
+
+		if (dir == SND_SOC_CLOCK_IN)
+			val = 1 << i2s_regs->cdclkcon_off;
+
+		i2s->rfs = rfs;
+		break;
+
+	case SAMSUNG_I2S_RCLKSRC_0: /* clock corrsponding to IISMOD[10] := 0 */
+	case SAMSUNG_I2S_RCLKSRC_1: /* clock corrsponding to IISMOD[10] := 1 */
+		mask = 1 << i2s_regs->rclksrc_off;
+
+		if ((priv->quirks & QUIRK_NO_MUXPSR)
+				|| (clk_id == SAMSUNG_I2S_RCLKSRC_0))
+			clk_id = 0;
+		else
+			clk_id = 1;
+
+		if (!any_active(i2s)) {
+			if (priv->op_clk && !IS_ERR(priv->op_clk)) {
+				if ((clk_id && !(mod & rsrc_mask)) ||
+					(!clk_id && (mod & rsrc_mask))) {
+					clk_disable_unprepare(priv->op_clk);
+					clk_put(priv->op_clk);
+				} else {
+					priv->rclk_srcrate =
+						clk_get_rate(priv->op_clk);
+					goto done;
+				}
+			}
+
+			if (clk_id)
+				priv->op_clk = clk_get(&i2s->pdev->dev,
+						"i2s_opclk1");
+			else
+				priv->op_clk = clk_get(&i2s->pdev->dev,
+						"i2s_opclk0");
+
+			if (WARN_ON(IS_ERR(priv->op_clk))) {
+				ret = PTR_ERR(priv->op_clk);
+				priv->op_clk = NULL;
+				goto err;
+			}
+
+			ret = clk_prepare_enable(priv->op_clk);
+			if (ret) {
+				clk_put(priv->op_clk);
+				priv->op_clk = NULL;
+				goto err;
+			}
+			priv->rclk_srcrate = clk_get_rate(priv->op_clk);
+
+		} else if ((!clk_id && (mod & rsrc_mask))
+				|| (clk_id && !(mod & rsrc_mask))) {
+			dev_err(&i2s->pdev->dev,
+				"%s:%d Other DAI busy\n", __func__, __LINE__);
+			ret = -EAGAIN;
+			goto err;
+		} else {
+			/* Call can't be on the active DAI */
+			goto done;
+		}
+
+		if (clk_id == 1)
+			val = 1 << i2s_regs->rclksrc_off;
+		break;
+	default:
+		dev_err(&i2s->pdev->dev, "We don't serve that!\n");
+		ret = -EINVAL;
+		goto err;
+	}
+
+	spin_lock_irqsave(&priv->lock, flags);
+	mod = readl(priv->addr + I2SMOD);
+	mod = (mod & ~mask) | val;
+	writel(mod, priv->addr + I2SMOD);
+	spin_unlock_irqrestore(&priv->lock, flags);
+done:
+	pm_runtime_put(dai->dev);
+
+	return 0;
+err:
+	pm_runtime_put(dai->dev);
+	return ret;
+}
+
+static int i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+	struct samsung_i2s_priv *priv = snd_soc_dai_get_drvdata(dai);
+	struct i2s_dai *i2s = to_info(dai);
+	int lrp_shift, sdf_shift, sdf_mask, lrp_rlow, mod_slave;
+	u32 mod, tmp = 0;
+	unsigned long flags;
+
+	lrp_shift = priv->variant_regs->lrp_off;
+	sdf_shift = priv->variant_regs->sdf_off;
+	mod_slave = 1 << priv->variant_regs->mss_off;
+
+	sdf_mask = MOD_SDF_MASK << sdf_shift;
+	lrp_rlow = MOD_LR_RLOW << lrp_shift;
+
+	/* Format is priority */
+	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+	case SND_SOC_DAIFMT_RIGHT_J:
+		tmp |= lrp_rlow;
+		tmp |= (MOD_SDF_MSB << sdf_shift);
+		break;
+	case SND_SOC_DAIFMT_LEFT_J:
+		tmp |= lrp_rlow;
+		tmp |= (MOD_SDF_LSB << sdf_shift);
+		break;
+	case SND_SOC_DAIFMT_I2S:
+		tmp |= (MOD_SDF_IIS << sdf_shift);
+		break;
+	default:
+		dev_err(&i2s->pdev->dev, "Format not supported\n");
+		return -EINVAL;
+	}
+
+	/*
+	 * INV flag is relative to the FORMAT flag - if set it simply
+	 * flips the polarity specified by the Standard
+	 */
+	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+	case SND_SOC_DAIFMT_NB_NF:
+		break;
+	case SND_SOC_DAIFMT_NB_IF:
+		if (tmp & lrp_rlow)
+			tmp &= ~lrp_rlow;
+		else
+			tmp |= lrp_rlow;
+		break;
+	default:
+		dev_err(&i2s->pdev->dev, "Polarity not supported\n");
+		return -EINVAL;
+	}
+
+	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+	case SND_SOC_DAIFMT_CBM_CFM:
+		tmp |= mod_slave;
+		break;
+	case SND_SOC_DAIFMT_CBS_CFS:
+		/*
+		 * Set default source clock in Master mode, only when the
+		 * CLK_I2S_RCLK_SRC clock is not exposed so we ensure any
+		 * clock configuration assigned in DT is not overwritten.
+		 */
+		if (priv->rclk_srcrate == 0 && priv->clk_data.clks == NULL)
+			i2s_set_sysclk(dai, SAMSUNG_I2S_RCLKSRC_0,
+							0, SND_SOC_CLOCK_IN);
+		break;
+	default:
+		dev_err(&i2s->pdev->dev, "master/slave format not supported\n");
+		return -EINVAL;
+	}
+
+	pm_runtime_get_sync(dai->dev);
+	spin_lock_irqsave(&priv->lock, flags);
+	mod = readl(priv->addr + I2SMOD);
+	/*
+	 * Don't change the I2S mode if any controller is active on this
+	 * channel.
+	 */
+	if (any_active(i2s) &&
+		((mod & (sdf_mask | lrp_rlow | mod_slave)) != tmp)) {
+		spin_unlock_irqrestore(&priv->lock, flags);
+		pm_runtime_put(dai->dev);
+		dev_err(&i2s->pdev->dev,
+				"%s:%d Other DAI busy\n", __func__, __LINE__);
+		return -EAGAIN;
+	}
+
+	mod &= ~(sdf_mask | lrp_rlow | mod_slave);
+	mod |= tmp;
+	writel(mod, priv->addr + I2SMOD);
+	priv->slave_mode = (mod & mod_slave);
+	spin_unlock_irqrestore(&priv->lock, flags);
+	pm_runtime_put(dai->dev);
+
+	return 0;
+}
+
+static int i2s_hw_params(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
+{
+	struct samsung_i2s_priv *priv = snd_soc_dai_get_drvdata(dai);
+	struct i2s_dai *i2s = to_info(dai);
+	u32 mod, mask = 0, val = 0;
+	struct clk *rclksrc;
+	unsigned long flags;
+
+	WARN_ON(!pm_runtime_active(dai->dev));
+
+	if (!is_secondary(i2s))
+		mask |= (MOD_DC2_EN | MOD_DC1_EN);
+
+	switch (params_channels(params)) {
+	case 6:
+		val |= MOD_DC2_EN;
+		fallthrough;
+	case 4:
+		val |= MOD_DC1_EN;
+		break;
+	case 2:
+		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+			i2s->dma_playback.addr_width = 4;
+		else
+			i2s->dma_capture.addr_width = 4;
+		break;
+	case 1:
+		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+			i2s->dma_playback.addr_width = 2;
+		else
+			i2s->dma_capture.addr_width = 2;
+
+		break;
+	default:
+		dev_err(&i2s->pdev->dev, "%d channels not supported\n",
+				params_channels(params));
+		return -EINVAL;
+	}
+
+	if (is_secondary(i2s))
+		mask |= MOD_BLCS_MASK;
+	else
+		mask |= MOD_BLCP_MASK;
+
+	if (is_manager(i2s))
+		mask |= MOD_BLC_MASK;
+
+	switch (params_width(params)) {
+	case 8:
+		if (is_secondary(i2s))
+			val |= MOD_BLCS_8BIT;
+		else
+			val |= MOD_BLCP_8BIT;
+		if (is_manager(i2s))
+			val |= MOD_BLC_8BIT;
+		break;
+	case 16:
+		if (is_secondary(i2s))
+			val |= MOD_BLCS_16BIT;
+		else
+			val |= MOD_BLCP_16BIT;
+		if (is_manager(i2s))
+			val |= MOD_BLC_16BIT;
+		break;
+	case 24:
+		if (is_secondary(i2s))
+			val |= MOD_BLCS_24BIT;
+		else
+			val |= MOD_BLCP_24BIT;
+		if (is_manager(i2s))
+			val |= MOD_BLC_24BIT;
+		break;
+	default:
+		dev_err(&i2s->pdev->dev, "Format(%d) not supported\n",
+				params_format(params));
+		return -EINVAL;
+	}
+
+	spin_lock_irqsave(&priv->lock, flags);
+	mod = readl(priv->addr + I2SMOD);
+	mod = (mod & ~mask) | val;
+	writel(mod, priv->addr + I2SMOD);
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	snd_soc_dai_init_dma_data(dai, &i2s->dma_playback, &i2s->dma_capture);
+
+	i2s->frmclk = params_rate(params);
+
+	rclksrc = priv->clk_table[CLK_I2S_RCLK_SRC];
+	if (rclksrc && !IS_ERR(rclksrc))
+		priv->rclk_srcrate = clk_get_rate(rclksrc);
+
+	return 0;
+}
+
+/* We set constraints on the substream according to the version of I2S */
+static int i2s_startup(struct snd_pcm_substream *substream,
+	  struct snd_soc_dai *dai)
+{
+	struct samsung_i2s_priv *priv = snd_soc_dai_get_drvdata(dai);
+	struct i2s_dai *i2s = to_info(dai);
+	struct i2s_dai *other = get_other_dai(i2s);
+	unsigned long flags;
+
+	pm_runtime_get_sync(dai->dev);
+
+	spin_lock_irqsave(&priv->pcm_lock, flags);
+
+	i2s->mode |= DAI_OPENED;
+
+	if (is_manager(other))
+		i2s->mode &= ~DAI_MANAGER;
+	else
+		i2s->mode |= DAI_MANAGER;
+
+	if (!any_active(i2s) && (priv->quirks & QUIRK_NEED_RSTCLR))
+		writel(CON_RSTCLR, i2s->priv->addr + I2SCON);
+
+	spin_unlock_irqrestore(&priv->pcm_lock, flags);
+
+	return 0;
+}
+
+static void i2s_shutdown(struct snd_pcm_substream *substream,
+	struct snd_soc_dai *dai)
+{
+	struct samsung_i2s_priv *priv = snd_soc_dai_get_drvdata(dai);
+	struct i2s_dai *i2s = to_info(dai);
+	struct i2s_dai *other = get_other_dai(i2s);
+	unsigned long flags;
+
+	spin_lock_irqsave(&priv->pcm_lock, flags);
+
+	i2s->mode &= ~DAI_OPENED;
+	i2s->mode &= ~DAI_MANAGER;
+
+	if (is_opened(other))
+		other->mode |= DAI_MANAGER;
+
+	/* Reset any constraint on RFS and BFS */
+	i2s->rfs = 0;
+	i2s->bfs = 0;
+
+	spin_unlock_irqrestore(&priv->pcm_lock, flags);
+
+	pm_runtime_put(dai->dev);
+}
+
+static int config_setup(struct i2s_dai *i2s)
+{
+	struct samsung_i2s_priv *priv = i2s->priv;
+	struct i2s_dai *other = get_other_dai(i2s);
+	unsigned rfs, bfs, blc;
+	u32 psr;
+
+	blc = get_blc(i2s);
+
+	bfs = i2s->bfs;
+
+	if (!bfs && other)
+		bfs = other->bfs;
+
+	/* Select least possible multiple(2) if no constraint set */
+	if (!bfs)
+		bfs = blc * 2;
+
+	rfs = i2s->rfs;
+
+	if (!rfs && other)
+		rfs = other->rfs;
+
+	if ((rfs == 256 || rfs == 512) && (blc == 24)) {
+		dev_err(&i2s->pdev->dev,
+			"%d-RFS not supported for 24-blc\n", rfs);
+		return -EINVAL;
+	}
+
+	if (!rfs) {
+		if (bfs == 16 || bfs == 32)
+			rfs = 256;
+		else
+			rfs = 384;
+	}
+
+	/* If already setup and running */
+	if (any_active(i2s) && (get_rfs(i2s) != rfs || get_bfs(i2s) != bfs)) {
+		dev_err(&i2s->pdev->dev,
+				"%s:%d Other DAI busy\n", __func__, __LINE__);
+		return -EAGAIN;
+	}
+
+	set_bfs(i2s, bfs);
+	set_rfs(i2s, rfs);
+
+	/* Don't bother with PSR in Slave mode */
+	if (priv->slave_mode)
+		return 0;
+
+	if (!(priv->quirks & QUIRK_NO_MUXPSR)) {
+		psr = priv->rclk_srcrate / i2s->frmclk / rfs;
+		writel(((psr - 1) << 8) | PSR_PSREN, priv->addr + I2SPSR);
+		dev_dbg(&i2s->pdev->dev,
+			"RCLK_SRC=%luHz PSR=%u, RCLK=%dfs, BCLK=%dfs\n",
+				priv->rclk_srcrate, psr, rfs, bfs);
+	}
+
+	return 0;
+}
+
+static int i2s_trigger(struct snd_pcm_substream *substream,
+	int cmd, struct snd_soc_dai *dai)
+{
+	struct samsung_i2s_priv *priv = snd_soc_dai_get_drvdata(dai);
+	int capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE);
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct i2s_dai *i2s = to_info(asoc_rtd_to_cpu(rtd, 0));
+	unsigned long flags;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		pm_runtime_get_sync(dai->dev);
+		spin_lock_irqsave(&priv->lock, flags);
+
+		if (config_setup(i2s)) {
+			spin_unlock_irqrestore(&priv->lock, flags);
+			return -EINVAL;
+		}
+
+		if (capture)
+			i2s_rxctrl(i2s, 1);
+		else
+			i2s_txctrl(i2s, 1);
+
+		spin_unlock_irqrestore(&priv->lock, flags);
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		spin_lock_irqsave(&priv->lock, flags);
+
+		if (capture) {
+			i2s_rxctrl(i2s, 0);
+			i2s_fifo(i2s, FIC_RXFLUSH);
+		} else {
+			i2s_txctrl(i2s, 0);
+			i2s_fifo(i2s, FIC_TXFLUSH);
+		}
+
+		spin_unlock_irqrestore(&priv->lock, flags);
+		pm_runtime_put(dai->dev);
+		break;
+	}
+
+	return 0;
+}
+
+static int i2s_set_clkdiv(struct snd_soc_dai *dai,
+	int div_id, int div)
+{
+	struct i2s_dai *i2s = to_info(dai);
+	struct i2s_dai *other = get_other_dai(i2s);
+
+	switch (div_id) {
+	case SAMSUNG_I2S_DIV_BCLK:
+		pm_runtime_get_sync(dai->dev);
+		if ((any_active(i2s) && div && (get_bfs(i2s) != div))
+			|| (other && other->bfs && (other->bfs != div))) {
+			pm_runtime_put(dai->dev);
+			dev_err(&i2s->pdev->dev,
+				"%s:%d Other DAI busy\n", __func__, __LINE__);
+			return -EAGAIN;
+		}
+		i2s->bfs = div;
+		pm_runtime_put(dai->dev);
+		break;
+	default:
+		dev_err(&i2s->pdev->dev,
+			"Invalid clock divider(%d)\n", div_id);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static snd_pcm_sframes_t
+i2s_delay(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
+{
+	struct samsung_i2s_priv *priv = snd_soc_dai_get_drvdata(dai);
+	struct i2s_dai *i2s = to_info(dai);
+	u32 reg = readl(priv->addr + I2SFIC);
+	snd_pcm_sframes_t delay;
+
+	WARN_ON(!pm_runtime_active(dai->dev));
+
+	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
+		delay = FIC_RXCOUNT(reg);
+	else if (is_secondary(i2s))
+		delay = FICS_TXCOUNT(readl(priv->addr + I2SFICS));
+	else
+		delay = (reg >> priv->variant_regs->ftx0cnt_off) & 0x7f;
+
+	return delay;
+}
+
+#ifdef CONFIG_PM
+static int i2s_suspend(struct snd_soc_component *component)
+{
+	return pm_runtime_force_suspend(component->dev);
+}
+
+static int i2s_resume(struct snd_soc_component *component)
+{
+	return pm_runtime_force_resume(component->dev);
+}
+#else
+#define i2s_suspend NULL
+#define i2s_resume  NULL
+#endif
+
+static int samsung_i2s_dai_probe(struct snd_soc_dai *dai)
+{
+	struct samsung_i2s_priv *priv = snd_soc_dai_get_drvdata(dai);
+	struct i2s_dai *i2s = to_info(dai);
+	struct i2s_dai *other = get_other_dai(i2s);
+	unsigned long flags;
+
+	pm_runtime_get_sync(dai->dev);
+
+	if (is_secondary(i2s)) {
+		/* If this is probe on the secondary DAI */
+		snd_soc_dai_init_dma_data(dai, &i2s->dma_playback, NULL);
+	} else {
+		snd_soc_dai_init_dma_data(dai, &i2s->dma_playback,
+					  &i2s->dma_capture);
+
+		if (priv->quirks & QUIRK_NEED_RSTCLR)
+			writel(CON_RSTCLR, priv->addr + I2SCON);
+
+		if (priv->quirks & QUIRK_SUPPORTS_IDMA)
+			idma_reg_addr_init(priv->addr,
+					   other->idma_playback.addr);
+	}
+
+	/* Reset any constraint on RFS and BFS */
+	i2s->rfs = 0;
+	i2s->bfs = 0;
+
+	spin_lock_irqsave(&priv->lock, flags);
+	i2s_txctrl(i2s, 0);
+	i2s_rxctrl(i2s, 0);
+	i2s_fifo(i2s, FIC_TXFLUSH);
+	i2s_fifo(other, FIC_TXFLUSH);
+	i2s_fifo(i2s, FIC_RXFLUSH);
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	/* Gate CDCLK by default */
+	if (!is_opened(other))
+		i2s_set_sysclk(dai, SAMSUNG_I2S_CDCLK,
+				0, SND_SOC_CLOCK_IN);
+	pm_runtime_put(dai->dev);
+
+	return 0;
+}
+
+static int samsung_i2s_dai_remove(struct snd_soc_dai *dai)
+{
+	struct samsung_i2s_priv *priv = snd_soc_dai_get_drvdata(dai);
+	struct i2s_dai *i2s = to_info(dai);
+	unsigned long flags;
+
+	pm_runtime_get_sync(dai->dev);
+
+	if (!is_secondary(i2s)) {
+		if (priv->quirks & QUIRK_NEED_RSTCLR) {
+			spin_lock_irqsave(&priv->lock, flags);
+			writel(0, priv->addr + I2SCON);
+			spin_unlock_irqrestore(&priv->lock, flags);
+		}
+	}
+
+	pm_runtime_put(dai->dev);
+
+	return 0;
+}
+
+static const struct snd_soc_dai_ops samsung_i2s_dai_ops = {
+	.trigger = i2s_trigger,
+	.hw_params = i2s_hw_params,
+	.set_fmt = i2s_set_fmt,
+	.set_clkdiv = i2s_set_clkdiv,
+	.set_sysclk = i2s_set_sysclk,
+	.startup = i2s_startup,
+	.shutdown = i2s_shutdown,
+	.delay = i2s_delay,
+};
+
+static const struct snd_soc_dapm_widget samsung_i2s_widgets[] = {
+	/* Backend DAI  */
+	SND_SOC_DAPM_AIF_OUT("Mixer DAI TX", NULL, 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_IN("Mixer DAI RX", NULL, 0, SND_SOC_NOPM, 0, 0),
+
+	/* Playback Mixer */
+	SND_SOC_DAPM_MIXER("Playback Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
+};
+
+static const struct snd_soc_dapm_route samsung_i2s_dapm_routes[] = {
+	{ "Playback Mixer", NULL, "Primary Playback" },
+	{ "Playback Mixer", NULL, "Secondary Playback" },
+
+	{ "Mixer DAI TX", NULL, "Playback Mixer" },
+	{ "Primary Capture", NULL, "Mixer DAI RX" },
+};
+
+static const struct snd_soc_component_driver samsung_i2s_component = {
+	.name = "samsung-i2s",
+
+	.dapm_widgets = samsung_i2s_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(samsung_i2s_widgets),
+
+	.dapm_routes = samsung_i2s_dapm_routes,
+	.num_dapm_routes = ARRAY_SIZE(samsung_i2s_dapm_routes),
+
+	.suspend = i2s_suspend,
+	.resume = i2s_resume,
+};
+
+#define SAMSUNG_I2S_FMTS (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE | \
+			  SNDRV_PCM_FMTBIT_S24_LE)
+
+static int i2s_alloc_dais(struct samsung_i2s_priv *priv,
+			  const struct samsung_i2s_dai_data *i2s_dai_data,
+			  int num_dais)
+{
+	static const char *dai_names[] = { "samsung-i2s", "samsung-i2s-sec" };
+	static const char *stream_names[] = { "Primary Playback",
+					      "Secondary Playback" };
+	struct snd_soc_dai_driver *dai_drv;
+	struct i2s_dai *dai;
+	int i;
+
+	priv->dai = devm_kcalloc(&priv->pdev->dev, num_dais,
+				     sizeof(*dai), GFP_KERNEL);
+	if (!priv->dai)
+		return -ENOMEM;
+
+	priv->dai_drv = devm_kcalloc(&priv->pdev->dev, num_dais,
+				     sizeof(*dai_drv), GFP_KERNEL);
+	if (!priv->dai_drv)
+		return -ENOMEM;
+
+	for (i = 0; i < num_dais; i++) {
+		dai_drv = &priv->dai_drv[i];
+
+		dai_drv->probe = samsung_i2s_dai_probe;
+		dai_drv->remove = samsung_i2s_dai_remove;
+
+		dai_drv->symmetric_rates = 1;
+		dai_drv->ops = &samsung_i2s_dai_ops;
+
+		dai_drv->playback.channels_min = 1;
+		dai_drv->playback.channels_max = 2;
+		dai_drv->playback.rates = i2s_dai_data->pcm_rates;
+		dai_drv->playback.formats = SAMSUNG_I2S_FMTS;
+		dai_drv->playback.stream_name = stream_names[i];
+
+		dai_drv->id = i + 1;
+		dai_drv->name = dai_names[i];
+
+		priv->dai[i].drv = &priv->dai_drv[i];
+		priv->dai[i].pdev = priv->pdev;
+	}
+
+	/* Initialize capture only for the primary DAI */
+	dai_drv = &priv->dai_drv[SAMSUNG_I2S_ID_PRIMARY - 1];
+
+	dai_drv->capture.channels_min = 1;
+	dai_drv->capture.channels_max = 2;
+	dai_drv->capture.rates = i2s_dai_data->pcm_rates;
+	dai_drv->capture.formats = SAMSUNG_I2S_FMTS;
+	dai_drv->capture.stream_name = "Primary Capture";
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int i2s_runtime_suspend(struct device *dev)
+{
+	struct samsung_i2s_priv *priv = dev_get_drvdata(dev);
+
+	priv->suspend_i2smod = readl(priv->addr + I2SMOD);
+	priv->suspend_i2scon = readl(priv->addr + I2SCON);
+	priv->suspend_i2spsr = readl(priv->addr + I2SPSR);
+
+	if (priv->op_clk)
+		clk_disable_unprepare(priv->op_clk);
+	clk_disable_unprepare(priv->clk);
+
+	return 0;
+}
+
+static int i2s_runtime_resume(struct device *dev)
+{
+	struct samsung_i2s_priv *priv = dev_get_drvdata(dev);
+	int ret;
+
+	ret = clk_prepare_enable(priv->clk);
+	if (ret)
+		return ret;
+
+	if (priv->op_clk) {
+		ret = clk_prepare_enable(priv->op_clk);
+		if (ret) {
+			clk_disable_unprepare(priv->clk);
+			return ret;
+		}
+	}
+
+	writel(priv->suspend_i2scon, priv->addr + I2SCON);
+	writel(priv->suspend_i2smod, priv->addr + I2SMOD);
+	writel(priv->suspend_i2spsr, priv->addr + I2SPSR);
+
+	return 0;
+}
+#endif /* CONFIG_PM */
+
+static void i2s_unregister_clocks(struct samsung_i2s_priv *priv)
+{
+	int i;
+
+	for (i = 0; i < priv->clk_data.clk_num; i++) {
+		if (!IS_ERR(priv->clk_table[i]))
+			clk_unregister(priv->clk_table[i]);
+	}
+}
+
+static void i2s_unregister_clock_provider(struct samsung_i2s_priv *priv)
+{
+	of_clk_del_provider(priv->pdev->dev.of_node);
+	i2s_unregister_clocks(priv);
+}
+
+
+static int i2s_register_clock_provider(struct samsung_i2s_priv *priv)
+{
+
+	const char * const i2s_clk_desc[] = { "cdclk", "rclk_src", "prescaler" };
+	const char *clk_name[2] = { "i2s_opclk0", "i2s_opclk1" };
+	const char *p_names[2] = { NULL };
+	struct device *dev = &priv->pdev->dev;
+	const struct samsung_i2s_variant_regs *reg_info = priv->variant_regs;
+	const char *i2s_clk_name[ARRAY_SIZE(i2s_clk_desc)];
+	struct clk *rclksrc;
+	int ret, i;
+
+	/* Register the clock provider only if it's expected in the DTB */
+	if (!of_find_property(dev->of_node, "#clock-cells", NULL))
+		return 0;
+
+	/* Get the RCLKSRC mux clock parent clock names */
+	for (i = 0; i < ARRAY_SIZE(p_names); i++) {
+		rclksrc = clk_get(dev, clk_name[i]);
+		if (IS_ERR(rclksrc))
+			continue;
+		p_names[i] = __clk_get_name(rclksrc);
+		clk_put(rclksrc);
+	}
+
+	for (i = 0; i < ARRAY_SIZE(i2s_clk_desc); i++) {
+		i2s_clk_name[i] = devm_kasprintf(dev, GFP_KERNEL, "%s_%s",
+						dev_name(dev), i2s_clk_desc[i]);
+		if (!i2s_clk_name[i])
+			return -ENOMEM;
+	}
+
+	if (!(priv->quirks & QUIRK_NO_MUXPSR)) {
+		/* Activate the prescaler */
+		u32 val = readl(priv->addr + I2SPSR);
+		writel(val | PSR_PSREN, priv->addr + I2SPSR);
+
+		priv->clk_table[CLK_I2S_RCLK_SRC] = clk_register_mux(dev,
+				i2s_clk_name[CLK_I2S_RCLK_SRC], p_names,
+				ARRAY_SIZE(p_names),
+				CLK_SET_RATE_NO_REPARENT | CLK_SET_RATE_PARENT,
+				priv->addr + I2SMOD, reg_info->rclksrc_off,
+				1, 0, &priv->lock);
+
+		priv->clk_table[CLK_I2S_RCLK_PSR] = clk_register_divider(dev,
+				i2s_clk_name[CLK_I2S_RCLK_PSR],
+				i2s_clk_name[CLK_I2S_RCLK_SRC],
+				CLK_SET_RATE_PARENT,
+				priv->addr + I2SPSR, 8, 6, 0, &priv->lock);
+
+		p_names[0] = i2s_clk_name[CLK_I2S_RCLK_PSR];
+		priv->clk_data.clk_num = 2;
+	}
+
+	priv->clk_table[CLK_I2S_CDCLK] = clk_register_gate(dev,
+				i2s_clk_name[CLK_I2S_CDCLK], p_names[0],
+				CLK_SET_RATE_PARENT,
+				priv->addr + I2SMOD, reg_info->cdclkcon_off,
+				CLK_GATE_SET_TO_DISABLE, &priv->lock);
+
+	priv->clk_data.clk_num += 1;
+	priv->clk_data.clks = priv->clk_table;
+
+	ret = of_clk_add_provider(dev->of_node, of_clk_src_onecell_get,
+				  &priv->clk_data);
+	if (ret < 0) {
+		dev_err(dev, "failed to add clock provider: %d\n", ret);
+		i2s_unregister_clocks(priv);
+	}
+
+	return ret;
+}
+
+/* Create platform device for the secondary PCM */
+static int i2s_create_secondary_device(struct samsung_i2s_priv *priv)
+{
+	struct platform_device *pdev_sec;
+	const char *devname;
+	int ret;
+
+	devname = devm_kasprintf(&priv->pdev->dev, GFP_KERNEL, "%s-sec",
+				 dev_name(&priv->pdev->dev));
+	if (!devname)
+		return -ENOMEM;
+
+	pdev_sec = platform_device_alloc(devname, -1);
+	if (!pdev_sec)
+		return -ENOMEM;
+
+	pdev_sec->driver_override = kstrdup("samsung-i2s", GFP_KERNEL);
+
+	ret = platform_device_add(pdev_sec);
+	if (ret < 0) {
+		platform_device_put(pdev_sec);
+		return ret;
+	}
+
+	ret = device_attach(&pdev_sec->dev);
+	if (ret <= 0) {
+		platform_device_unregister(priv->pdev_sec);
+		dev_info(&pdev_sec->dev, "device_attach() failed\n");
+		return ret;
+	}
+
+	priv->pdev_sec = pdev_sec;
+
+	return 0;
+}
+
+static void i2s_delete_secondary_device(struct samsung_i2s_priv *priv)
+{
+	platform_device_unregister(priv->pdev_sec);
+	priv->pdev_sec = NULL;
+}
+
+static int samsung_i2s_probe(struct platform_device *pdev)
+{
+	struct i2s_dai *pri_dai, *sec_dai = NULL;
+	struct s3c_audio_pdata *i2s_pdata = pdev->dev.platform_data;
+	u32 regs_base, idma_addr = 0;
+	struct device_node *np = pdev->dev.of_node;
+	const struct samsung_i2s_dai_data *i2s_dai_data;
+	const struct platform_device_id *id;
+	struct samsung_i2s_priv *priv;
+	struct resource *res;
+	int num_dais, ret;
+
+	if (IS_ENABLED(CONFIG_OF) && pdev->dev.of_node) {
+		i2s_dai_data = of_device_get_match_data(&pdev->dev);
+	} else {
+		id = platform_get_device_id(pdev);
+
+		/* Nothing to do if it is the secondary device probe */
+		if (!id)
+			return 0;
+
+		i2s_dai_data = (struct samsung_i2s_dai_data *)id->driver_data;
+	}
+
+	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	if (np) {
+		priv->quirks = i2s_dai_data->quirks;
+	} else {
+		if (!i2s_pdata) {
+			dev_err(&pdev->dev, "Missing platform data\n");
+			return -EINVAL;
+		}
+		priv->quirks = i2s_pdata->type.quirks;
+	}
+
+	num_dais = (priv->quirks & QUIRK_SEC_DAI) ? 2 : 1;
+	priv->pdev = pdev;
+	priv->variant_regs = i2s_dai_data->i2s_variant_regs;
+
+	ret = i2s_alloc_dais(priv, i2s_dai_data, num_dais);
+	if (ret < 0)
+		return ret;
+
+	pri_dai = &priv->dai[SAMSUNG_I2S_ID_PRIMARY - 1];
+
+	spin_lock_init(&priv->lock);
+	spin_lock_init(&priv->pcm_lock);
+
+	if (!np) {
+		pri_dai->dma_playback.filter_data = i2s_pdata->dma_playback;
+		pri_dai->dma_capture.filter_data = i2s_pdata->dma_capture;
+		pri_dai->filter = i2s_pdata->dma_filter;
+
+		idma_addr = i2s_pdata->type.idma_addr;
+	} else {
+		if (of_property_read_u32(np, "samsung,idma-addr",
+					 &idma_addr)) {
+			if (priv->quirks & QUIRK_SUPPORTS_IDMA) {
+				dev_info(&pdev->dev, "idma address is not"\
+						"specified");
+			}
+		}
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	priv->addr = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(priv->addr))
+		return PTR_ERR(priv->addr);
+
+	regs_base = res->start;
+
+	priv->clk = devm_clk_get(&pdev->dev, "iis");
+	if (IS_ERR(priv->clk)) {
+		dev_err(&pdev->dev, "Failed to get iis clock\n");
+		return PTR_ERR(priv->clk);
+	}
+
+	ret = clk_prepare_enable(priv->clk);
+	if (ret != 0) {
+		dev_err(&pdev->dev, "failed to enable clock: %d\n", ret);
+		return ret;
+	}
+	pri_dai->dma_playback.addr = regs_base + I2STXD;
+	pri_dai->dma_capture.addr = regs_base + I2SRXD;
+	pri_dai->dma_playback.chan_name = "tx";
+	pri_dai->dma_capture.chan_name = "rx";
+	pri_dai->dma_playback.addr_width = 4;
+	pri_dai->dma_capture.addr_width = 4;
+	pri_dai->priv = priv;
+
+	if (priv->quirks & QUIRK_PRI_6CHAN)
+		pri_dai->drv->playback.channels_max = 6;
+
+	ret = samsung_asoc_dma_platform_register(&pdev->dev, pri_dai->filter,
+						 "tx", "rx", NULL);
+	if (ret < 0)
+		goto err_disable_clk;
+
+	if (priv->quirks & QUIRK_SEC_DAI) {
+		sec_dai = &priv->dai[SAMSUNG_I2S_ID_SECONDARY - 1];
+
+		sec_dai->dma_playback.addr = regs_base + I2STXDS;
+		sec_dai->dma_playback.chan_name = "tx-sec";
+
+		if (!np) {
+			sec_dai->dma_playback.filter_data = i2s_pdata->dma_play_sec;
+			sec_dai->filter = i2s_pdata->dma_filter;
+		}
+
+		sec_dai->dma_playback.addr_width = 4;
+		sec_dai->idma_playback.addr = idma_addr;
+		sec_dai->pri_dai = pri_dai;
+		sec_dai->priv = priv;
+		pri_dai->sec_dai = sec_dai;
+
+		ret = i2s_create_secondary_device(priv);
+		if (ret < 0)
+			goto err_disable_clk;
+
+		ret = samsung_asoc_dma_platform_register(&priv->pdev_sec->dev,
+						sec_dai->filter, "tx-sec", NULL,
+						&pdev->dev);
+		if (ret < 0)
+			goto err_del_sec;
+
+	}
+
+	if (i2s_pdata && i2s_pdata->cfg_gpio && i2s_pdata->cfg_gpio(pdev)) {
+		dev_err(&pdev->dev, "Unable to configure gpio\n");
+		ret = -EINVAL;
+		goto err_del_sec;
+	}
+
+	dev_set_drvdata(&pdev->dev, priv);
+
+	ret = devm_snd_soc_register_component(&pdev->dev,
+					&samsung_i2s_component,
+					priv->dai_drv, num_dais);
+	if (ret < 0)
+		goto err_del_sec;
+
+	pm_runtime_set_active(&pdev->dev);
+	pm_runtime_enable(&pdev->dev);
+
+	ret = i2s_register_clock_provider(priv);
+	if (ret < 0)
+		goto err_disable_pm;
+
+	priv->op_clk = clk_get_parent(priv->clk_table[CLK_I2S_RCLK_SRC]);
+
+	return 0;
+
+err_disable_pm:
+	pm_runtime_disable(&pdev->dev);
+err_del_sec:
+	i2s_delete_secondary_device(priv);
+err_disable_clk:
+	clk_disable_unprepare(priv->clk);
+	return ret;
+}
+
+static int samsung_i2s_remove(struct platform_device *pdev)
+{
+	struct samsung_i2s_priv *priv = dev_get_drvdata(&pdev->dev);
+
+	/* The secondary device has no driver data assigned */
+	if (!priv)
+		return 0;
+
+	pm_runtime_get_sync(&pdev->dev);
+	pm_runtime_disable(&pdev->dev);
+
+	i2s_unregister_clock_provider(priv);
+	i2s_delete_secondary_device(priv);
+	clk_disable_unprepare(priv->clk);
+
+	pm_runtime_put_noidle(&pdev->dev);
+
+	return 0;
+}
+
+static const struct samsung_i2s_variant_regs i2sv3_regs = {
+	.bfs_off = 1,
+	.rfs_off = 3,
+	.sdf_off = 5,
+	.txr_off = 8,
+	.rclksrc_off = 10,
+	.mss_off = 11,
+	.cdclkcon_off = 12,
+	.lrp_off = 7,
+	.bfs_mask = 0x3,
+	.rfs_mask = 0x3,
+	.ftx0cnt_off = 8,
+};
+
+static const struct samsung_i2s_variant_regs i2sv6_regs = {
+	.bfs_off = 0,
+	.rfs_off = 4,
+	.sdf_off = 6,
+	.txr_off = 8,
+	.rclksrc_off = 10,
+	.mss_off = 11,
+	.cdclkcon_off = 12,
+	.lrp_off = 15,
+	.bfs_mask = 0xf,
+	.rfs_mask = 0x3,
+	.ftx0cnt_off = 8,
+};
+
+static const struct samsung_i2s_variant_regs i2sv7_regs = {
+	.bfs_off = 0,
+	.rfs_off = 4,
+	.sdf_off = 7,
+	.txr_off = 9,
+	.rclksrc_off = 11,
+	.mss_off = 12,
+	.cdclkcon_off = 22,
+	.lrp_off = 15,
+	.bfs_mask = 0xf,
+	.rfs_mask = 0x7,
+	.ftx0cnt_off = 0,
+};
+
+static const struct samsung_i2s_variant_regs i2sv5_i2s1_regs = {
+	.bfs_off = 0,
+	.rfs_off = 3,
+	.sdf_off = 6,
+	.txr_off = 8,
+	.rclksrc_off = 10,
+	.mss_off = 11,
+	.cdclkcon_off = 12,
+	.lrp_off = 15,
+	.bfs_mask = 0x7,
+	.rfs_mask = 0x7,
+	.ftx0cnt_off = 8,
+};
+
+static const struct samsung_i2s_dai_data i2sv3_dai_type = {
+	.quirks = QUIRK_NO_MUXPSR,
+	.pcm_rates = SNDRV_PCM_RATE_8000_96000,
+	.i2s_variant_regs = &i2sv3_regs,
+};
+
+static const struct samsung_i2s_dai_data i2sv5_dai_type = {
+	.quirks = QUIRK_PRI_6CHAN | QUIRK_SEC_DAI | QUIRK_NEED_RSTCLR |
+			QUIRK_SUPPORTS_IDMA,
+	.pcm_rates = SNDRV_PCM_RATE_8000_96000,
+	.i2s_variant_regs = &i2sv3_regs,
+};
+
+static const struct samsung_i2s_dai_data i2sv6_dai_type = {
+	.quirks = QUIRK_PRI_6CHAN | QUIRK_SEC_DAI | QUIRK_NEED_RSTCLR |
+			QUIRK_SUPPORTS_TDM | QUIRK_SUPPORTS_IDMA,
+	.pcm_rates = SNDRV_PCM_RATE_8000_96000,
+	.i2s_variant_regs = &i2sv6_regs,
+};
+
+static const struct samsung_i2s_dai_data i2sv7_dai_type = {
+	.quirks = QUIRK_PRI_6CHAN | QUIRK_SEC_DAI | QUIRK_NEED_RSTCLR |
+			QUIRK_SUPPORTS_TDM,
+	.pcm_rates = SNDRV_PCM_RATE_8000_192000,
+	.i2s_variant_regs = &i2sv7_regs,
+};
+
+static const struct samsung_i2s_dai_data i2sv5_dai_type_i2s1 = {
+	.quirks = QUIRK_PRI_6CHAN | QUIRK_NEED_RSTCLR,
+	.pcm_rates = SNDRV_PCM_RATE_8000_96000,
+	.i2s_variant_regs = &i2sv5_i2s1_regs,
+};
+
+static const struct platform_device_id samsung_i2s_driver_ids[] = {
+	{
+		.name           = "samsung-i2s",
+		.driver_data	= (kernel_ulong_t)&i2sv3_dai_type,
+	},
+	{},
+};
+MODULE_DEVICE_TABLE(platform, samsung_i2s_driver_ids);
+
+#ifdef CONFIG_OF
+static const struct of_device_id exynos_i2s_match[] = {
+	{
+		.compatible = "samsung,s3c6410-i2s",
+		.data = &i2sv3_dai_type,
+	}, {
+		.compatible = "samsung,s5pv210-i2s",
+		.data = &i2sv5_dai_type,
+	}, {
+		.compatible = "samsung,exynos5420-i2s",
+		.data = &i2sv6_dai_type,
+	}, {
+		.compatible = "samsung,exynos7-i2s",
+		.data = &i2sv7_dai_type,
+	}, {
+		.compatible = "samsung,exynos7-i2s1",
+		.data = &i2sv5_dai_type_i2s1,
+	},
+	{},
+};
+MODULE_DEVICE_TABLE(of, exynos_i2s_match);
+#endif
+
+static const struct dev_pm_ops samsung_i2s_pm = {
+	SET_RUNTIME_PM_OPS(i2s_runtime_suspend,
+				i2s_runtime_resume, NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				     pm_runtime_force_resume)
+};
+
+static struct platform_driver samsung_i2s_driver = {
+	.probe  = samsung_i2s_probe,
+	.remove = samsung_i2s_remove,
+	.id_table = samsung_i2s_driver_ids,
+	.driver = {
+		.name = "samsung-i2s",
+		.of_match_table = of_match_ptr(exynos_i2s_match),
+		.pm = &samsung_i2s_pm,
+	},
+};
+
+module_platform_driver(samsung_i2s_driver);
+
+/* Module information */
+MODULE_AUTHOR("Jaswinder Singh, <jassisinghbrar@gmail.com>");
+MODULE_DESCRIPTION("Samsung I2S Interface");
+MODULE_ALIAS("platform:samsung-i2s");
+MODULE_LICENSE("GPL");