Merge remote-tracking branches 'asoc/topic/adsp', 'asoc/topic/atmel', 'asoc/topic/bcm2835', 'asoc/topic/docs', 'asoc/topic/fsl', 'asoc/topic/generic', 'asoc/topic/kirkwood', 'asoc/topic/mc13783', 'asoc/topic/mxs', 'asoc/topic/nuc900', 'asoc/topic/sai', 'asoc/topic/sh', 'asoc/topic/ssm2602', 'asoc/topic/tlv320aic3x', 'asoc/topic/twl4030', 'asoc/topic/ux500', 'asoc/topic/width' and 'asoc/topic/x86' into for-tiwai

Documentation/devicetree/bindings/sound/fsl,esai.txt

···
+Freescale Enhanced Serial Audio Interface (ESAI) Controller
+
+The Enhanced Serial Audio Interface (ESAI) provides a full-duplex serial port
+for serial communication with a variety of serial devices, including industry
+standard codecs, Sony/Phillips Digital Interface (S/PDIF) transceivers, and
+other DSPs. It has up to six transmitters and four receivers.
+
+Required properties:
+
+  - compatible : Compatible list, must contain "fsl,imx35-esai".
+
+  - reg : Offset and length of the register set for the device.
+
+  - interrupts : Contains the spdif interrupt.
+
+  - dmas : Generic dma devicetree binding as described in
+  Documentation/devicetree/bindings/dma/dma.txt.
+
+  - dma-names : Two dmas have to be defined, "tx" and "rx".
+
+  - clocks: Contains an entry for each entry in clock-names.
+
+  - clock-names : Includes the following entries:
+	"core"		The core clock used to access registers
+	"extal"		The esai baud clock for esai controller used to derive
+			HCK, SCK and FS.
+	"fsys"		The system clock derived from ahb clock used to derive
+			HCK, SCK and FS.
+
+  - fsl,fifo-depth: The number of elements in the transmit and receive FIFOs.
+    This number is the maximum allowed value for TFCR[TFWM] or RFCR[RFWM].
+
+  - fsl,esai-synchronous: This is a boolean property. If present, indicating
+    that ESAI would work in the synchronous mode, which means all the settings
+    for Receiving would be duplicated from Transmition related registers.
+
+Example:
+
+esai: esai@02024000 {
+	compatible = "fsl,imx35-esai";
+	reg = <0x02024000 0x4000>;
+	interrupts = <0 51 0x04>;
+	clocks = <&clks 208>, <&clks 118>, <&clks 208>;
+	clock-names = "core", "extal", "fsys";
+	dmas = <&sdma 23 21 0>, <&sdma 24 21 0>;
+	dma-names = "rx", "tx";
+	fsl,fifo-depth = <128>;
+	fsl,esai-synchronous;
+	status = "disabled";
+};

Documentation/devicetree/bindings/sound/fsl,ssi.txt

···
 be programmed in AC97, I2S, left-justified, or right-justified modes.
 
 Required properties:
-- compatible:       Compatible list, contains "fsl,ssi".
+- compatible:       Compatible list, should contain one of the following
+                    compatibles:
+                      fsl,mpc8610-ssi
+                      fsl,imx51-ssi
+                      fsl,imx35-ssi
+                      fsl,imx21-ssi
 - cell-index:       The SSI, <0> = SSI1, <1> = SSI2, and so on.
 - reg:              Offset and length of the register set for the device.
 - interrupts:       <a b> where a is the interrupt number and b is a

Documentation/devicetree/bindings/sound/simple-card.txt

···
 - simple-audio-card,format		: CPU/CODEC common audio format.
 					  "i2s", "right_j", "left_j" , "dsp_a"
 					  "dsp_b", "ac97", "pdm", "msb", "lsb"
-- simple-audio-routing			: A list of the connections between audio components.
+- simple-audio-card,routing		: A list of the connections between audio components.
 					  Each entry is a pair of strings, the first being the
 					  connection's sink, the second being the connection's
 					  source.

Documentation/devicetree/bindings/sound/tlv320aic3x.txt

···
 
 - compatible - "string" - One of:
     "ti,tlv320aic3x" - Generic TLV320AIC3x device
+    "ti,tlv320aic32x4" - TLV320AIC32x4
     "ti,tlv320aic33" - TLV320AIC33
     "ti,tlv320aic3007" - TLV320AIC3007
     "ti,tlv320aic3106" - TLV320AIC3106

Documentation/sound/alsa/soc/overview.txt

···
   * Machine specific controls: Allow machines to add controls to the sound card
     (e.g. volume control for speaker amplifier).
 
-To achieve all this, ASoC basically splits an embedded audio system into 3
-components :-
+To achieve all this, ASoC basically splits an embedded audio system into
+multiple re-usable component drivers :-
 
-  * Codec driver: The codec driver is platform independent and contains audio
-    controls, audio interface capabilities, codec DAPM definition and codec IO
-    functions.
+  * Codec class drivers: The codec class driver is platform independent and
+    contains audio controls, audio interface capabilities, codec DAPM
+    definition and codec IO functions. This class extends to BT, FM and MODEM
+    ICs if required. Codec class drivers should be generic code that can run
+    on any architecture and machine.
 
-  * Platform driver: The platform driver contains the audio DMA engine and audio
-    interface drivers (e.g. I2S, AC97, PCM) for that platform.
+  * Platform class drivers: The platform class driver includes the audio DMA
+    engine driver, digital audio interface (DAI) drivers (e.g. I2S, AC97, PCM)
+    and any audio DSP drivers for that platform.
 
-  * Machine driver: The machine driver handles any machine specific controls and
-    audio events (e.g. turning on an amp at start of playback).
+  * Machine class driver: The machine driver class acts as the glue that
+    decribes and binds the other component drivers together to form an ALSA
+    "sound card device". It handles any machine specific controls and
+    machine level audio events (e.g. turning on an amp at start of playback).
 
 
 Documentation
···
 pop_clicks.txt: How to minimise audio artifacts.
 
 clocking.txt: ASoC clocking for best power performance.
+
+jack.txt: ASoC jack detection.
+
+DPCM.txt: Dynamic PCM - Describes DPCM with DSP examples.

arch/arm/mach-ux500/board-mop500-audio.c

···
 };
 
 struct msp_i2s_platform_data msp0_platform_data = {
-	.id = MSP_I2S_0,
+	.id = 0,
 	.msp_i2s_dma_rx = &msp0_dma_rx,
 	.msp_i2s_dma_tx = &msp0_dma_tx,
 };
···
 };
 
 struct msp_i2s_platform_data msp1_platform_data = {
-	.id = MSP_I2S_1,
+	.id = 1,
 	.msp_i2s_dma_rx = NULL,
 	.msp_i2s_dma_tx = &msp1_dma_tx,
 };
···
 };
 
 struct msp_i2s_platform_data msp2_platform_data = {
-	.id = MSP_I2S_2,
+	.id = 2,
 	.msp_i2s_dma_rx = &msp2_dma_rx,
 	.msp_i2s_dma_tx = &msp2_dma_tx,
 };
 
 struct msp_i2s_platform_data msp3_platform_data = {
-	.id		= MSP_I2S_3,
+	.id		= 3,
 	.msp_i2s_dma_rx	= &msp1_dma_rx,
 	.msp_i2s_dma_tx	= NULL,
 };

drivers/mfd/twl-core.c

···
 #include <linux/i2c.h>
 #include <linux/i2c/twl.h>
 
+/* Register descriptions for audio */
+#include <linux/mfd/twl4030-audio.h>
+
 #include "twl-core.h"
 
 /*
···
 	{ 2, TWL5031_BASEADD_INTERRUPTS },
 };
 
+static struct reg_default twl4030_49_defaults[] = {
+	/* Audio Registers */
+	{ 0x01, 0x00}, /* CODEC_MODE	*/
+	{ 0x02, 0x00}, /* OPTION	*/
+	/* 0x03  Unused	*/
+	{ 0x04, 0x00}, /* MICBIAS_CTL	*/
+	{ 0x05, 0x00}, /* ANAMICL	*/
+	{ 0x06, 0x00}, /* ANAMICR	*/
+	{ 0x07, 0x00}, /* AVADC_CTL	*/
+	{ 0x08, 0x00}, /* ADCMICSEL	*/
+	{ 0x09, 0x00}, /* DIGMIXING	*/
+	{ 0x0a, 0x0f}, /* ATXL1PGA	*/
+	{ 0x0b, 0x0f}, /* ATXR1PGA	*/
+	{ 0x0c, 0x0f}, /* AVTXL2PGA	*/
+	{ 0x0d, 0x0f}, /* AVTXR2PGA	*/
+	{ 0x0e, 0x00}, /* AUDIO_IF	*/
+	{ 0x0f, 0x00}, /* VOICE_IF	*/
+	{ 0x10, 0x3f}, /* ARXR1PGA	*/
+	{ 0x11, 0x3f}, /* ARXL1PGA	*/
+	{ 0x12, 0x3f}, /* ARXR2PGA	*/
+	{ 0x13, 0x3f}, /* ARXL2PGA	*/
+	{ 0x14, 0x25}, /* VRXPGA	*/
+	{ 0x15, 0x00}, /* VSTPGA	*/
+	{ 0x16, 0x00}, /* VRX2ARXPGA	*/
+	{ 0x17, 0x00}, /* AVDAC_CTL	*/
+	{ 0x18, 0x00}, /* ARX2VTXPGA	*/
+	{ 0x19, 0x32}, /* ARXL1_APGA_CTL*/
+	{ 0x1a, 0x32}, /* ARXR1_APGA_CTL*/
+	{ 0x1b, 0x32}, /* ARXL2_APGA_CTL*/
+	{ 0x1c, 0x32}, /* ARXR2_APGA_CTL*/
+	{ 0x1d, 0x00}, /* ATX2ARXPGA	*/
+	{ 0x1e, 0x00}, /* BT_IF		*/
+	{ 0x1f, 0x55}, /* BTPGA		*/
+	{ 0x20, 0x00}, /* BTSTPGA	*/
+	{ 0x21, 0x00}, /* EAR_CTL	*/
+	{ 0x22, 0x00}, /* HS_SEL	*/
+	{ 0x23, 0x00}, /* HS_GAIN_SET	*/
+	{ 0x24, 0x00}, /* HS_POPN_SET	*/
+	{ 0x25, 0x00}, /* PREDL_CTL	*/
+	{ 0x26, 0x00}, /* PREDR_CTL	*/
+	{ 0x27, 0x00}, /* PRECKL_CTL	*/
+	{ 0x28, 0x00}, /* PRECKR_CTL	*/
+	{ 0x29, 0x00}, /* HFL_CTL	*/
+	{ 0x2a, 0x00}, /* HFR_CTL	*/
+	{ 0x2b, 0x05}, /* ALC_CTL	*/
+	{ 0x2c, 0x00}, /* ALC_SET1	*/
+	{ 0x2d, 0x00}, /* ALC_SET2	*/
+	{ 0x2e, 0x00}, /* BOOST_CTL	*/
+	{ 0x2f, 0x00}, /* SOFTVOL_CTL	*/
+	{ 0x30, 0x13}, /* DTMF_FREQSEL	*/
+	{ 0x31, 0x00}, /* DTMF_TONEXT1H	*/
+	{ 0x32, 0x00}, /* DTMF_TONEXT1L	*/
+	{ 0x33, 0x00}, /* DTMF_TONEXT2H	*/
+	{ 0x34, 0x00}, /* DTMF_TONEXT2L	*/
+	{ 0x35, 0x79}, /* DTMF_TONOFF	*/
+	{ 0x36, 0x11}, /* DTMF_WANONOFF	*/
+	{ 0x37, 0x00}, /* I2S_RX_SCRAMBLE_H */
+	{ 0x38, 0x00}, /* I2S_RX_SCRAMBLE_M */
+	{ 0x39, 0x00}, /* I2S_RX_SCRAMBLE_L */
+	{ 0x3a, 0x06}, /* APLL_CTL */
+	{ 0x3b, 0x00}, /* DTMF_CTL */
+	{ 0x3c, 0x44}, /* DTMF_PGA_CTL2	(0x3C) */
+	{ 0x3d, 0x69}, /* DTMF_PGA_CTL1	(0x3D) */
+	{ 0x3e, 0x00}, /* MISC_SET_1 */
+	{ 0x3f, 0x00}, /* PCMBTMUX */
+	/* 0x40 - 0x42  Unused */
+	{ 0x43, 0x00}, /* RX_PATH_SEL */
+	{ 0x44, 0x32}, /* VDL_APGA_CTL */
+	{ 0x45, 0x00}, /* VIBRA_CTL */
+	{ 0x46, 0x00}, /* VIBRA_SET */
+	{ 0x47, 0x00}, /* VIBRA_PWM_SET	*/
+	{ 0x48, 0x00}, /* ANAMIC_GAIN	*/
+	{ 0x49, 0x00}, /* MISC_SET_2	*/
+	/* End of Audio Registers */
+};
+
+static bool twl4030_49_nop_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case 0:
+	case 3:
+	case 40:
+	case 41:
+	case 42:
+		return false;
+	default:
+		return true;
+	}
+}
+
+static const struct regmap_range twl4030_49_volatile_ranges[] = {
+	regmap_reg_range(TWL4030_BASEADD_TEST, 0xff),
+};
+
+static const struct regmap_access_table twl4030_49_volatile_table = {
+	.yes_ranges = twl4030_49_volatile_ranges,
+	.n_yes_ranges = ARRAY_SIZE(twl4030_49_volatile_ranges),
+};
+
 static struct regmap_config twl4030_regmap_config[4] = {
 	{
 		/* Address 0x48 */
···
 		.reg_bits = 8,
 		.val_bits = 8,
 		.max_register = 0xff,
+
+		.readable_reg = twl4030_49_nop_reg,
+		.writeable_reg = twl4030_49_nop_reg,
+
+		.volatile_table = &twl4030_49_volatile_table,
+
+		.reg_defaults = twl4030_49_defaults,
+		.num_reg_defaults = ARRAY_SIZE(twl4030_49_defaults),
+		.cache_type = REGCACHE_RBTREE,
 	},
 	{
 		/* Address 0x4a */
···
 EXPORT_SYMBOL(twl_rev);
 
 /**
+ * twl_get_regmap - Get the regmap associated with the given module
+ * @mod_no: module number
+ *
+ * Returns the regmap pointer or NULL in case of failure.
+ */
+static struct regmap *twl_get_regmap(u8 mod_no)
+{
+	int sid;
+	struct twl_client *twl;
+
+	if (unlikely(!twl_priv || !twl_priv->ready)) {
+		pr_err("%s: not initialized\n", DRIVER_NAME);
+		return NULL;
+	}
+	if (unlikely(mod_no >= twl_get_last_module())) {
+		pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no);
+		return NULL;
+	}
+
+	sid = twl_priv->twl_map[mod_no].sid;
+	twl = &twl_priv->twl_modules[sid];
+
+	return twl->regmap;
+}
+
+/**
  * twl_i2c_write - Writes a n bit register in TWL4030/TWL5030/TWL60X0
  * @mod_no: module number
  * @value: an array of num_bytes+1 containing data to write
···
  */
 int twl_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
 {
+	struct regmap *regmap = twl_get_regmap(mod_no);
 	int ret;
-	int sid;
-	struct twl_client *twl;
 
-	if (unlikely(!twl_priv || !twl_priv->ready)) {
-		pr_err("%s: not initialized\n", DRIVER_NAME);
+	if (!regmap)
 		return -EPERM;
-	}
-	if (unlikely(mod_no >= twl_get_last_module())) {
-		pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no);
-		return -EPERM;
-	}
 
-	sid = twl_priv->twl_map[mod_no].sid;
-	twl = &twl_priv->twl_modules[sid];
-
-	ret = regmap_bulk_write(twl->regmap,
-				twl_priv->twl_map[mod_no].base + reg, value,
-				num_bytes);
+	ret = regmap_bulk_write(regmap, twl_priv->twl_map[mod_no].base + reg,
+				value, num_bytes);
 
 	if (ret)
 		pr_err("%s: Write failed (mod %d, reg 0x%02x count %d)\n",
···
  */
 int twl_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
 {
+	struct regmap *regmap = twl_get_regmap(mod_no);
 	int ret;
-	int sid;
-	struct twl_client *twl;
 
-	if (unlikely(!twl_priv || !twl_priv->ready)) {
-		pr_err("%s: not initialized\n", DRIVER_NAME);
+	if (!regmap)
 		return -EPERM;
-	}
-	if (unlikely(mod_no >= twl_get_last_module())) {
-		pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no);
-		return -EPERM;
-	}
 
-	sid = twl_priv->twl_map[mod_no].sid;
-	twl = &twl_priv->twl_modules[sid];
-
-	ret = regmap_bulk_read(twl->regmap,
-			       twl_priv->twl_map[mod_no].base + reg, value,
-			       num_bytes);
+	ret = regmap_bulk_read(regmap, twl_priv->twl_map[mod_no].base + reg,
+			       value, num_bytes);
 
 	if (ret)
 		pr_err("%s: Read failed (mod %d, reg 0x%02x count %d)\n",
···
 	return ret;
 }
 EXPORT_SYMBOL(twl_i2c_read);
+
+/**
+ * twl_regcache_bypass - Configure the regcache bypass for the regmap associated
+ *			 with the module
+ * @mod_no: module number
+ * @enable: Regcache bypass state
+ *
+ * Returns 0 else failure.
+ */
+int twl_set_regcache_bypass(u8 mod_no, bool enable)
+{
+	struct regmap *regmap = twl_get_regmap(mod_no);
+
+	if (!regmap)
+		return -EPERM;
+
+	regcache_cache_bypass(regmap, enable);
+
+	return 0;
+}
+EXPORT_SYMBOL(twl_set_regcache_bypass);
 
 /*----------------------------------------------------------------------*/
 

include/linux/i2c/twl.h

···
 TWL_CLASS_IS(4030, TWL4030_CLASS_ID)
 TWL_CLASS_IS(6030, TWL6030_CLASS_ID)
 
+/* Set the regcache bypass for the regmap associated with the nodule */
+int twl_set_regcache_bypass(u8 mod_no, bool enable);
+
 /*
  * Read and write several 8-bit registers at once.
  */
···
 	unsigned int digimic_delay; /* in ms */
 	unsigned int ramp_delay_value;
 	unsigned int offset_cncl_path;
-	unsigned int check_defaults:1;
-	unsigned int reset_registers:1;
 	unsigned int hs_extmute:1;
 	int hs_extmute_gpio;
 };

include/linux/platform_data/asoc-ux500-msp.h

···
 
 #include <linux/platform_data/dma-ste-dma40.h>
 
-enum msp_i2s_id {
-	MSP_I2S_0 = 0,
-	MSP_I2S_1,
-	MSP_I2S_2,
-	MSP_I2S_3,
-};
-
 /* Platform data structure for a MSP I2S-device */
 struct msp_i2s_platform_data {
-	enum msp_i2s_id id;
+	int id;
 	struct stedma40_chan_cfg *msp_i2s_dma_rx;
 	struct stedma40_chan_cfg *msp_i2s_dma_tx;
 };

sound/soc/atmel/atmel-pcm-dma.c

···
 				  SNDRV_PCM_INFO_INTERLEAVED |
 				  SNDRV_PCM_INFO_RESUME |
 				  SNDRV_PCM_INFO_PAUSE,
-	.formats		= SNDRV_PCM_FMTBIT_S16_LE,
 	.period_bytes_min	= 256,		/* lighting DMA overhead */
 	.period_bytes_max	= 2 * 0xffff,	/* if 2 bytes format */
 	.periods_min		= 8,

sound/soc/atmel/atmel-pcm-pdc.c

···
 				  SNDRV_PCM_INFO_MMAP_VALID |
 				  SNDRV_PCM_INFO_INTERLEAVED |
 				  SNDRV_PCM_INFO_PAUSE,
-	.formats		= SNDRV_PCM_FMTBIT_S16_LE,
 	.period_bytes_min	= 32,
 	.period_bytes_max	= 8192,
 	.periods_min		= 2,

sound/soc/bcm/Kconfig

···
 config SND_BCM2835_SOC_I2S
 	tristate "SoC Audio support for the Broadcom BCM2835 I2S module"
 	depends on ARCH_BCM2835 || COMPILE_TEST
-	select SND_SOC_DMAENGINE_PCM
 	select SND_SOC_GENERIC_DMAENGINE_PCM
 	select REGMAP_MMIO
 	help

sound/soc/codecs/ad1836.c

···
 	int word_len = 0;
 
 	/* bit size */
-	switch (params_format(params)) {
-	case SNDRV_PCM_FORMAT_S16_LE:
+	switch (params_width(params)) {
+	case 16:
 		word_len = AD1836_WORD_LEN_16;
 		break;
-	case SNDRV_PCM_FORMAT_S20_3LE:
+	case 20:
 		word_len = AD1836_WORD_LEN_20;
 		break;
-	case SNDRV_PCM_FORMAT_S24_LE:
-	case SNDRV_PCM_FORMAT_S32_LE:
+	case 24:
+	case 32:
 		word_len = AD1836_WORD_LEN_24;
 		break;
 	default:

sound/soc/codecs/ad193x.c

···
 	struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec);
 
 	/* bit size */
-	switch (params_format(params)) {
-	case SNDRV_PCM_FORMAT_S16_LE:
+	switch (params_width(params)) {
+	case 16:
 		word_len = 3;
 		break;
-	case SNDRV_PCM_FORMAT_S20_3LE:
+	case 20:
 		word_len = 1;
 		break;
-	case SNDRV_PCM_FORMAT_S24_LE:
-	case SNDRV_PCM_FORMAT_S32_LE:
+	case 24:
+	case 32:
 		word_len = 0;
 		break;
 	}

sound/soc/codecs/adau1373.c

···
 		ADAU1373_BCLKDIV_SR_MASK | ADAU1373_BCLKDIV_BCLK_MASK,
 		(div << 2) | ADAU1373_BCLKDIV_64);
 
-	switch (params_format(params)) {
-	case SNDRV_PCM_FORMAT_S16_LE:
+	switch (params_width(params)) {
+	case 16:
 		ctrl = ADAU1373_DAI_WLEN_16;
 		break;
-	case SNDRV_PCM_FORMAT_S20_3LE:
+	case 20:
 		ctrl = ADAU1373_DAI_WLEN_20;
 		break;
-	case SNDRV_PCM_FORMAT_S24_LE:
+	case 24:
 		ctrl = ADAU1373_DAI_WLEN_24;
 		break;
-	case SNDRV_PCM_FORMAT_S32_LE:
+	case 32:
 		ctrl = ADAU1373_DAI_WLEN_32;
 		break;
 	default:

sound/soc/codecs/adau1701.c

···
 }
 
 static int adau1701_set_capture_pcm_format(struct snd_soc_codec *codec,
-		snd_pcm_format_t format)
+					   struct snd_pcm_hw_params *params)
 {
 	struct adau1701 *adau1701 = snd_soc_codec_get_drvdata(codec);
 	unsigned int mask = ADAU1701_SEROCTL_WORD_LEN_MASK;
 	unsigned int val;
 
-	switch (format) {
-	case SNDRV_PCM_FORMAT_S16_LE:
+	switch (params_width(params)) {
+	case 16:
 		val = ADAU1701_SEROCTL_WORD_LEN_16;
 		break;
-	case SNDRV_PCM_FORMAT_S20_3LE:
+	case 20:
 		val = ADAU1701_SEROCTL_WORD_LEN_20;
 		break;
-	case SNDRV_PCM_FORMAT_S24_LE:
+	case 24:
 		val = ADAU1701_SEROCTL_WORD_LEN_24;
 		break;
 	default:
···
 	}
 
 	if (adau1701->dai_fmt == SND_SOC_DAIFMT_RIGHT_J) {
-		switch (format) {
-		case SNDRV_PCM_FORMAT_S16_LE:
+		switch (params_width(params)) {
+		case 16:
 			val |= ADAU1701_SEROCTL_MSB_DEALY16;
 			break;
-		case SNDRV_PCM_FORMAT_S20_3LE:
+		case 20:
 			val |= ADAU1701_SEROCTL_MSB_DEALY12;
 			break;
-		case SNDRV_PCM_FORMAT_S24_LE:
+		case 24:
 			val |= ADAU1701_SEROCTL_MSB_DEALY8;
 			break;
 		}
···
 }
 
 static int adau1701_set_playback_pcm_format(struct snd_soc_codec *codec,
-			snd_pcm_format_t format)
+					    struct snd_pcm_hw_params *params)
 {
 	struct adau1701 *adau1701 = snd_soc_codec_get_drvdata(codec);
 	unsigned int val;
···
 	if (adau1701->dai_fmt != SND_SOC_DAIFMT_RIGHT_J)
 		return 0;
 
-	switch (format) {
-	case SNDRV_PCM_FORMAT_S16_LE:
+	switch (params_width(params)) {
+	case 16:
 		val = ADAU1701_SERICTL_RIGHTJ_16;
 		break;
-	case SNDRV_PCM_FORMAT_S20_3LE:
+	case 20:
 		val = ADAU1701_SERICTL_RIGHTJ_20;
 		break;
-	case SNDRV_PCM_FORMAT_S24_LE:
+	case 24:
 		val = ADAU1701_SERICTL_RIGHTJ_24;
 		break;
 	default:
···
 	struct snd_soc_codec *codec = dai->codec;
 	struct adau1701 *adau1701 = snd_soc_codec_get_drvdata(codec);
 	unsigned int clkdiv = adau1701->sysclk / params_rate(params);
-	snd_pcm_format_t format;
 	unsigned int val;
 	int ret;
 
···
 	regmap_update_bits(adau1701->regmap, ADAU1701_DSPCTRL,
 		ADAU1701_DSPCTRL_SR_MASK, val);
 
-	format = params_format(params);
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-		return adau1701_set_playback_pcm_format(codec, format);
+		return adau1701_set_playback_pcm_format(codec, params);
 	else
-		return adau1701_set_capture_pcm_format(codec, format);
+		return adau1701_set_capture_pcm_format(codec, params);
 }
 
 static int adau1701_set_dai_fmt(struct snd_soc_dai *codec_dai,

sound/soc/codecs/adav80x.c

···
 }
 
 static int adav80x_set_capture_pcm_format(struct snd_soc_codec *codec,
-		struct snd_soc_dai *dai, snd_pcm_format_t format)
+		struct snd_soc_dai *dai, struct snd_pcm_hw_params *params)
 {
 	struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
 	unsigned int val;
 
-	switch (format) {
-	case SNDRV_PCM_FORMAT_S16_LE:
+	switch (params_width(params)) {
+	case 16:
 		val = ADAV80X_CAPTURE_WORD_LEN16;
 		break;
-	case SNDRV_PCM_FORMAT_S18_3LE:
+	case 18:
 		val = ADAV80X_CAPTRUE_WORD_LEN18;
 		break;
-	case SNDRV_PCM_FORMAT_S20_3LE:
+	case 20:
 		val = ADAV80X_CAPTURE_WORD_LEN20;
 		break;
-	case SNDRV_PCM_FORMAT_S24_LE:
+	case 24:
 		val = ADAV80X_CAPTURE_WORD_LEN24;
 		break;
 	default:
···
 }
 
 static int adav80x_set_playback_pcm_format(struct snd_soc_codec *codec,
-		struct snd_soc_dai *dai, snd_pcm_format_t format)
+		struct snd_soc_dai *dai, struct snd_pcm_hw_params *params)
 {
 	struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
 	unsigned int val;
···
 	if (adav80x->dai_fmt[dai->id] != SND_SOC_DAIFMT_RIGHT_J)
 		return 0;
 
-	switch (format) {
-	case SNDRV_PCM_FORMAT_S16_LE:
+	switch (params_width(params)) {
+	case 16:
 		val = ADAV80X_PLAYBACK_MODE_RIGHT_J_16;
 		break;
-	case SNDRV_PCM_FORMAT_S18_3LE:
+	case 18:
 		val = ADAV80X_PLAYBACK_MODE_RIGHT_J_18;
 		break;
-	case SNDRV_PCM_FORMAT_S20_3LE:
+	case 20:
 		val = ADAV80X_PLAYBACK_MODE_RIGHT_J_20;
 		break;
-	case SNDRV_PCM_FORMAT_S24_LE:
+	case 24:
 		val = ADAV80X_PLAYBACK_MODE_RIGHT_J_24;
 		break;
 	default:
···
 		return -EINVAL;
 
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-		adav80x_set_playback_pcm_format(codec, dai,
-			params_format(params));
+		adav80x_set_playback_pcm_format(codec, dai, params);
 		adav80x_set_dac_clock(codec, rate);
 	} else {
-		adav80x_set_capture_pcm_format(codec, dai,
-			params_format(params));
+		adav80x_set_capture_pcm_format(codec, dai, params);
 		adav80x_set_adc_clock(codec, rate);
 	}
 	adav80x->rate = rate;

sound/soc/codecs/alc5623.c

···
 	iface &= ~ALC5623_DAI_I2S_DL_MASK;
 
 	/* bit size */
-	switch (params_format(params)) {
-	case SNDRV_PCM_FORMAT_S16_LE:
+	switch (params_width(params)) {
+	case 16:
 		iface |= ALC5623_DAI_I2S_DL_16;
 		break;
-	case SNDRV_PCM_FORMAT_S20_3LE:
+	case 20:
 		iface |= ALC5623_DAI_I2S_DL_20;
 		break;
-	case SNDRV_PCM_FORMAT_S24_LE:
+	case 24:
 		iface |= ALC5623_DAI_I2S_DL_24;
 		break;
-	case SNDRV_PCM_FORMAT_S32_LE:
+	case 32:
 		iface |= ALC5623_DAI_I2S_DL_32;
 		break;
 	default:

sound/soc/codecs/alc5632.c

···
 	iface &= ~ALC5632_DAI_I2S_DL_MASK;
 
 	/* bit size */
-	switch (params_format(params)) {
-	case SNDRV_PCM_FORMAT_S16_LE:
+	switch (params_width(params)) {
+	case 16:
 		iface |= ALC5632_DAI_I2S_DL_16;
 		break;
-	case SNDRV_PCM_FORMAT_S20_3LE:
+	case 20:
 		iface |= ALC5632_DAI_I2S_DL_20;
 		break;
-	case SNDRV_PCM_FORMAT_S24_LE:
+	case 24:
 		iface |= ALC5632_DAI_I2S_DL_24;
 		break;
 	default:

sound/soc/codecs/arizona.h

···
 	ARIZONA_MIXER_INPUT_ROUTES(name " Input 4")
 
 #define ARIZONA_DSP_ROUTES(name) \
-	{ name, NULL, name " Aux 1" }, \
-	{ name, NULL, name " Aux 2" }, \
-	{ name, NULL, name " Aux 3" }, \
-	{ name, NULL, name " Aux 4" }, \
-	{ name, NULL, name " Aux 5" }, \
-	{ name, NULL, name " Aux 6" }, \
+	{ name, NULL, name " Preloader"}, \
+	{ name " Preloader", NULL, name " Aux 1" }, \
+	{ name " Preloader", NULL, name " Aux 2" }, \
+	{ name " Preloader", NULL, name " Aux 3" }, \
+	{ name " Preloader", NULL, name " Aux 4" }, \
+	{ name " Preloader", NULL, name " Aux 5" }, \
+	{ name " Preloader", NULL, name " Aux 6" }, \
 	ARIZONA_MIXER_INPUT_ROUTES(name " Aux 1"), \
 	ARIZONA_MIXER_INPUT_ROUTES(name " Aux 2"), \
 	ARIZONA_MIXER_INPUT_ROUTES(name " Aux 3"), \
 	ARIZONA_MIXER_INPUT_ROUTES(name " Aux 4"), \
 	ARIZONA_MIXER_INPUT_ROUTES(name " Aux 5"), \
 	ARIZONA_MIXER_INPUT_ROUTES(name " Aux 6"), \
-	ARIZONA_MIXER_ROUTES(name, name "L"), \
-	ARIZONA_MIXER_ROUTES(name, name "R")
+	ARIZONA_MIXER_ROUTES(name " Preloader", name "L"), \
+	ARIZONA_MIXER_ROUTES(name " Preloader", name "R")
 
 #define ARIZONA_RATE_ENUM_SIZE 4
 extern const char *arizona_rate_text[ARIZONA_RATE_ENUM_SIZE];

sound/soc/codecs/cs42l51.c

···
 		intf_ctl |= CS42L51_INTF_CTL_DAC_FORMAT(CS42L51_DAC_DIF_LJ24);
 		break;
 	case SND_SOC_DAIFMT_RIGHT_J:
-		switch (params_format(params)) {
-		case SNDRV_PCM_FORMAT_S16_LE:
-		case SNDRV_PCM_FORMAT_S16_BE:
+		switch (params_width(params)) {
+		case 16:
 			fmt = CS42L51_DAC_DIF_RJ16;
 			break;
-		case SNDRV_PCM_FORMAT_S18_3LE:
-		case SNDRV_PCM_FORMAT_S18_3BE:
+		case 18:
 			fmt = CS42L51_DAC_DIF_RJ18;
 			break;
-		case SNDRV_PCM_FORMAT_S20_3LE:
-		case SNDRV_PCM_FORMAT_S20_3BE:
+		case 20:
 			fmt = CS42L51_DAC_DIF_RJ20;
 			break;
-		case SNDRV_PCM_FORMAT_S24_LE:
-		case SNDRV_PCM_FORMAT_S24_BE:
+		case 24:
 			fmt = CS42L51_DAC_DIF_RJ24;
 			break;
 		default:

sound/soc/codecs/da7210.c

···
 
 	dai_cfg1 = 0xFC & snd_soc_read(codec, DA7210_DAI_CFG1);
 
-	switch (params_format(params)) {
-	case SNDRV_PCM_FORMAT_S16_LE:
+	switch (params_width(params)) {
+	case 16:
 		dai_cfg1 |= DA7210_DAI_WORD_S16_LE;
 		break;
-	case SNDRV_PCM_FORMAT_S20_3LE:
+	case 20:
 		dai_cfg1 |= DA7210_DAI_WORD_S20_3LE;
 		break;
-	case SNDRV_PCM_FORMAT_S24_LE:
+	case 24:
 		dai_cfg1 |= DA7210_DAI_WORD_S24_LE;
 		break;
-	case SNDRV_PCM_FORMAT_S32_LE:
+	case 32:
 		dai_cfg1 |= DA7210_DAI_WORD_S32_LE;
 		break;
 	default:

sound/soc/codecs/da7213.c

···
 	u8 fs;
 
 	/* Set DAI format */
-	switch (params_format(params)) {
-	case SNDRV_PCM_FORMAT_S16_LE:
+	switch (params_width(params)) {
+	case 16:
 		dai_ctrl |= DA7213_DAI_WORD_LENGTH_S16_LE;
 		break;
-	case SNDRV_PCM_FORMAT_S20_3LE:
+	case 20:
 		dai_ctrl |= DA7213_DAI_WORD_LENGTH_S20_LE;
 		break;
-	case SNDRV_PCM_FORMAT_S24_LE:
+	case 24:
 		dai_ctrl |= DA7213_DAI_WORD_LENGTH_S24_LE;
 		break;
-	case SNDRV_PCM_FORMAT_S32_LE:
+	case 32:
 		dai_ctrl |= DA7213_DAI_WORD_LENGTH_S32_LE;
 		break;
 	default:

sound/soc/codecs/da732x.c

···
 
 	reg_aif = dai->driver->base;
 
-	switch (params_format(params)) {
-	case SNDRV_PCM_FORMAT_S16_LE:
+	switch (params_width(params)) {
+	case 16:
 		aif |= DA732X_AIF_WORD_16;
 		break;
-	case SNDRV_PCM_FORMAT_S20_3LE:
+	case 20:
 		aif |= DA732X_AIF_WORD_20;
 		break;
-	case SNDRV_PCM_FORMAT_S24_LE:
+	case 24:
 		aif |= DA732X_AIF_WORD_24;
 		break;
-	case SNDRV_PCM_FORMAT_S32_LE:
+	case 32:
 		aif |= DA732X_AIF_WORD_32;
 		break;
 	default:

sound/soc/codecs/da9055.c

···
 	u8 aif_ctrl, fs;
 	u32 sysclk;
 
-	switch (params_format(params)) {
-	case SNDRV_PCM_FORMAT_S16_LE:
+	switch (params_width(params)) {
+	case 16:
 		aif_ctrl = DA9055_AIF_WORD_S16_LE;
 		break;
-	case SNDRV_PCM_FORMAT_S20_3LE:
+	case 20:
 		aif_ctrl = DA9055_AIF_WORD_S20_3LE;
 		break;
-	case SNDRV_PCM_FORMAT_S24_LE:
+	case 24:
 		aif_ctrl = DA9055_AIF_WORD_S24_LE;
 		break;
-	case SNDRV_PCM_FORMAT_S32_LE:
+	case 32:
 		aif_ctrl = DA9055_AIF_WORD_S32_LE;
 		break;
 	default:

sound/soc/codecs/isabelle.c

···
 			ISABELLE_FS_RATE_MASK, fs_val);
 
 	/* bit size */
-	switch (params_format(params)) {
-	case SNDRV_PCM_FORMAT_S20_3LE:
+	switch (params_width(params)) {
+	case 20:
 		aif |= ISABELLE_AIF_LENGTH_20;
 		break;
-	case SNDRV_PCM_FORMAT_S32_LE:
+	case 32:
 		aif |= ISABELLE_AIF_LENGTH_32;
 		break;
 	default:

sound/soc/codecs/max98088.c

···
 
        rate = params_rate(params);
 
-       switch (params_format(params)) {
-       case SNDRV_PCM_FORMAT_S16_LE:
+       switch (params_width(params)) {
+       case 16:
                snd_soc_update_bits(codec, M98088_REG_14_DAI1_FORMAT,
                        M98088_DAI_WS, 0);
                break;
-       case SNDRV_PCM_FORMAT_S24_LE:
+       case 24:
                snd_soc_update_bits(codec, M98088_REG_14_DAI1_FORMAT,
                        M98088_DAI_WS, M98088_DAI_WS);
                break;

sound/soc/codecs/max98090.c

···
 
 	max98090->lrclk = params_rate(params);
 
-	switch (params_format(params)) {
-	case SNDRV_PCM_FORMAT_S16_LE:
+	switch (params_width(params)) {
+	case 16:
 		snd_soc_update_bits(codec, M98090_REG_INTERFACE_FORMAT,
 			M98090_WS_MASK, 0);
 		break;

sound/soc/codecs/max98095.c

···
 
 	rate = params_rate(params);
 
-	switch (params_format(params)) {
-	case SNDRV_PCM_FORMAT_S16_LE:
+	switch (params_width(params)) {
+	case 16:
 		snd_soc_update_bits(codec, M98095_02A_DAI1_FORMAT,
 			M98095_DAI_WS, 0);
 		break;
-	case SNDRV_PCM_FORMAT_S24_LE:
+	case 24:
 		snd_soc_update_bits(codec, M98095_02A_DAI1_FORMAT,
 			M98095_DAI_WS, M98095_DAI_WS);
 		break;

sound/soc/codecs/max9850.c

···
 	snd_soc_write(codec, MAX9850_LRCLK_MSB, (lrclk_div >> 8) & 0x7f);
 	snd_soc_write(codec, MAX9850_LRCLK_LSB, lrclk_div & 0xff);
 
-	switch (params_format(params)) {
-	case SNDRV_PCM_FORMAT_S16_LE:
+	switch (params_width(params)) {
+	case 16:
 		da = 0;
 		break;
-	case SNDRV_PCM_FORMAT_S20_3LE:
+	case 20:
 		da = 0x2;
 		break;
-	case SNDRV_PCM_FORMAT_S24_LE:
+	case 24:
 		da = 0x3;
 		break;
 	default:

sound/soc/codecs/mc13783.c

···
 	.num_dapm_routes = ARRAY_SIZE(mc13783_routes),
 };
 
-static int mc13783_codec_probe(struct platform_device *pdev)
+static int __init mc13783_codec_probe(struct platform_device *pdev)
 {
-	struct mc13xxx *mc13xxx;
 	struct mc13783_priv *priv;
 	struct mc13xxx_codec_platform_data *pdata = pdev->dev.platform_data;
 	int ret;
 
-	mc13xxx = dev_get_drvdata(pdev->dev.parent);
-
-
 	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
-	if (priv == NULL)
+	if (!priv)
 		return -ENOMEM;
 
-	dev_set_drvdata(&pdev->dev, priv);
-	priv->mc13xxx = mc13xxx;
 	if (pdata) {
 		priv->adc_ssi_port = pdata->adc_ssi_port;
 		priv->dac_ssi_port = pdata->dac_ssi_port;
 	} else {
-		priv->adc_ssi_port = MC13783_SSI1_PORT;
-		priv->dac_ssi_port = MC13783_SSI2_PORT;
+		return -ENOSYS;
 	}
+
+	dev_set_drvdata(&pdev->dev, priv);
+	priv->mc13xxx = dev_get_drvdata(pdev->dev.parent);
 
 	if (priv->adc_ssi_port == priv->dac_ssi_port)
 		ret = snd_soc_register_codec(&pdev->dev, &soc_codec_dev_mc13783,
···
 	else
 		ret = snd_soc_register_codec(&pdev->dev, &soc_codec_dev_mc13783,
 			mc13783_dai_async, ARRAY_SIZE(mc13783_dai_async));
-
-	if (ret)
-		goto err_register_codec;
-
-	return 0;
-
-err_register_codec:
-	dev_err(&pdev->dev, "register codec failed with %d\n", ret);
 
 	return ret;
 }
···
 
 static struct platform_driver mc13783_codec_driver = {
 	.driver = {
-		   .name = "mc13783-codec",
-		   .owner = THIS_MODULE,
-		   },
-	.probe = mc13783_codec_probe,
+		.name	= "mc13783-codec",
+		.owner	= THIS_MODULE,
+	},
 	.remove = mc13783_codec_remove,
 };
-
-module_platform_driver(mc13783_codec_driver);
+module_platform_driver_probe(mc13783_codec_driver, mc13783_codec_probe);
 
 MODULE_DESCRIPTION("ASoC MC13783 driver");
 MODULE_AUTHOR("Sascha Hauer, Pengutronix <[e-mail]>");

sound/soc/codecs/ssm2602.c

···
 };
 
 static const unsigned int ssm2602_rates_12288000[] = {
-	8000, 32000, 48000, 96000,
+	8000, 16000, 32000, 48000, 96000,
 };
 
 static struct snd_pcm_hw_constraint_list ssm2602_constraints_12288000 = {
···
 	{12288000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x0)},
 	{18432000, 32000, SSM2602_COEFF_SRATE(0x6, 0x1, 0x0)},
 	{12000000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x1)},
+
+	/* 16k */
+	{12288000, 16000, SSM2602_COEFF_SRATE(0x5, 0x0, 0x0)},
+	{18432000, 16000, SSM2602_COEFF_SRATE(0x5, 0x1, 0x0)},
+	{12000000, 16000, SSM2602_COEFF_SRATE(0xa, 0x0, 0x1)},
 
 	/* 8k */
 	{12288000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x0)},
···
 	return 0;
 }
 
-#define SSM2602_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_32000 |\
-		SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
-		SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
+#define SSM2602_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |\
+		SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\
+		SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\
+		SNDRV_PCM_RATE_96000)
 
 #define SSM2602_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
 		SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)

sound/soc/codecs/twl4030.c

···
 
 #define TWL4030_CACHEREGNUM	(TWL4030_REG_MISC_SET_2 + 1)
 
-/*
- * twl4030 register cache & default register settings
- */
-static const u8 twl4030_reg[TWL4030_CACHEREGNUM] = {
-	0x00, /* this register not used		*/
-	0x00, /* REG_CODEC_MODE		(0x1)	*/
-	0x00, /* REG_OPTION		(0x2)	*/
-	0x00, /* REG_UNKNOWN		(0x3)	*/
-	0x00, /* REG_MICBIAS_CTL	(0x4)	*/
-	0x00, /* REG_ANAMICL		(0x5)	*/
-	0x00, /* REG_ANAMICR		(0x6)	*/
-	0x00, /* REG_AVADC_CTL		(0x7)	*/
-	0x00, /* REG_ADCMICSEL		(0x8)	*/
-	0x00, /* REG_DIGMIXING		(0x9)	*/
-	0x0f, /* REG_ATXL1PGA		(0xA)	*/
-	0x0f, /* REG_ATXR1PGA		(0xB)	*/
-	0x0f, /* REG_AVTXL2PGA		(0xC)	*/
-	0x0f, /* REG_AVTXR2PGA		(0xD)	*/
-	0x00, /* REG_AUDIO_IF		(0xE)	*/
-	0x00, /* REG_VOICE_IF		(0xF)	*/
-	0x3f, /* REG_ARXR1PGA		(0x10)	*/
-	0x3f, /* REG_ARXL1PGA		(0x11)	*/
-	0x3f, /* REG_ARXR2PGA		(0x12)	*/
-	0x3f, /* REG_ARXL2PGA		(0x13)	*/
-	0x25, /* REG_VRXPGA		(0x14)	*/
-	0x00, /* REG_VSTPGA		(0x15)	*/
-	0x00, /* REG_VRX2ARXPGA		(0x16)	*/
-	0x00, /* REG_AVDAC_CTL		(0x17)	*/
-	0x00, /* REG_ARX2VTXPGA		(0x18)	*/
-	0x32, /* REG_ARXL1_APGA_CTL	(0x19)	*/
-	0x32, /* REG_ARXR1_APGA_CTL	(0x1A)	*/
-	0x32, /* REG_ARXL2_APGA_CTL	(0x1B)	*/
-	0x32, /* REG_ARXR2_APGA_CTL	(0x1C)	*/
-	0x00, /* REG_ATX2ARXPGA		(0x1D)	*/
-	0x00, /* REG_BT_IF		(0x1E)	*/
-	0x55, /* REG_BTPGA		(0x1F)	*/
-	0x00, /* REG_BTSTPGA		(0x20)	*/
-	0x00, /* REG_EAR_CTL		(0x21)	*/
-	0x00, /* REG_HS_SEL		(0x22)	*/
-	0x00, /* REG_HS_GAIN_SET	(0x23)	*/
-	0x00, /* REG_HS_POPN_SET	(0x24)	*/
-	0x00, /* REG_PREDL_CTL		(0x25)	*/
-	0x00, /* REG_PREDR_CTL		(0x26)	*/
-	0x00, /* REG_PRECKL_CTL		(0x27)	*/
-	0x00, /* REG_PRECKR_CTL		(0x28)	*/
-	0x00, /* REG_HFL_CTL		(0x29)	*/
-	0x00, /* REG_HFR_CTL		(0x2A)	*/
-	0x05, /* REG_ALC_CTL		(0x2B)	*/
-	0x00, /* REG_ALC_SET1		(0x2C)	*/
-	0x00, /* REG_ALC_SET2		(0x2D)	*/
-	0x00, /* REG_BOOST_CTL		(0x2E)	*/
-	0x00, /* REG_SOFTVOL_CTL	(0x2F)	*/
-	0x13, /* REG_DTMF_FREQSEL	(0x30)	*/
-	0x00, /* REG_DTMF_TONEXT1H	(0x31)	*/
-	0x00, /* REG_DTMF_TONEXT1L	(0x32)	*/
-	0x00, /* REG_DTMF_TONEXT2H	(0x33)	*/
-	0x00, /* REG_DTMF_TONEXT2L	(0x34)	*/
-	0x79, /* REG_DTMF_TONOFF	(0x35)	*/
-	0x11, /* REG_DTMF_WANONOFF	(0x36)	*/
-	0x00, /* REG_I2S_RX_SCRAMBLE_H	(0x37)	*/
-	0x00, /* REG_I2S_RX_SCRAMBLE_M	(0x38)	*/
-	0x00, /* REG_I2S_RX_SCRAMBLE_L	(0x39)	*/
-	0x06, /* REG_APLL_CTL		(0x3A)	*/
-	0x00, /* REG_DTMF_CTL		(0x3B)	*/
-	0x44, /* REG_DTMF_PGA_CTL2	(0x3C)	*/
-	0x69, /* REG_DTMF_PGA_CTL1	(0x3D)	*/
-	0x00, /* REG_MISC_SET_1		(0x3E)	*/
-	0x00, /* REG_PCMBTMUX		(0x3F)	*/
-	0x00, /* not used		(0x40)	*/
-	0x00, /* not used		(0x41)	*/
-	0x00, /* not used		(0x42)	*/
-	0x00, /* REG_RX_PATH_SEL	(0x43)	*/
-	0x32, /* REG_VDL_APGA_CTL	(0x44)	*/
-	0x00, /* REG_VIBRA_CTL		(0x45)	*/
-	0x00, /* REG_VIBRA_SET		(0x46)	*/
-	0x00, /* REG_VIBRA_PWM_SET	(0x47)	*/
-	0x00, /* REG_ANAMIC_GAIN	(0x48)	*/
-	0x00, /* REG_MISC_SET_2		(0x49)	*/
-};
-
 /* codec private data */
 struct twl4030_priv {
 	unsigned int codec_powered;
···
 	u8 earpiece_enabled;
 	u8 predrivel_enabled, predriver_enabled;
 	u8 carkitl_enabled, carkitr_enabled;
+	u8 ctl_cache[TWL4030_REG_PRECKR_CTL - TWL4030_REG_EAR_CTL + 1];
 
 	struct twl4030_codec_data *pdata;
 };
 
-/*
- * read twl4030 register cache
- */
-static inline unsigned int twl4030_read_reg_cache(struct snd_soc_codec *codec,
-	unsigned int reg)
+static void tw4030_init_ctl_cache(struct twl4030_priv *twl4030)
 {
-	u8 *cache = codec->reg_cache;
+	int i;
+	u8 byte;
+
+	for (i = TWL4030_REG_EAR_CTL; i <= TWL4030_REG_PRECKR_CTL; i++) {
+		twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &byte, i);
+		twl4030->ctl_cache[i - TWL4030_REG_EAR_CTL] = byte;
+	}
+}
+
+static unsigned int twl4030_read(struct snd_soc_codec *codec, unsigned int reg)
+{
+	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
+	u8 value = 0;
 
 	if (reg >= TWL4030_CACHEREGNUM)
 		return -EIO;
 
-	return cache[reg];
+	switch (reg) {
+	case TWL4030_REG_EAR_CTL:
+	case TWL4030_REG_PREDL_CTL:
+	case TWL4030_REG_PREDR_CTL:
+	case TWL4030_REG_PRECKL_CTL:
+	case TWL4030_REG_PRECKR_CTL:
+	case TWL4030_REG_HS_GAIN_SET:
+		value = twl4030->ctl_cache[reg - TWL4030_REG_EAR_CTL];
+		break;
+	default:
+		twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &value, reg);
+		break;
+	}
+
+	return value;
 }
 
-/*
- * write twl4030 register cache
- */
-static inline void twl4030_write_reg_cache(struct snd_soc_codec *codec,
-						u8 reg, u8 value)
+static bool twl4030_can_write_to_chip(struct twl4030_priv *twl4030,
+				      unsigned int reg)
 {
-	u8 *cache = codec->reg_cache;
+	bool write_to_reg = false;
 
-	if (reg >= TWL4030_CACHEREGNUM)
-		return;
-	cache[reg] = value;
-}
-
-/*
- * write to the twl4030 register space
- */
-static int twl4030_write(struct snd_soc_codec *codec,
-			unsigned int reg, unsigned int value)
-{
-	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
-	int write_to_reg = 0;
-
-	twl4030_write_reg_cache(codec, reg, value);
 	/* Decide if the given register can be written */
 	switch (reg) {
 	case TWL4030_REG_EAR_CTL:
 		if (twl4030->earpiece_enabled)
-			write_to_reg = 1;
+			write_to_reg = true;
 		break;
 	case TWL4030_REG_PREDL_CTL:
 		if (twl4030->predrivel_enabled)
-			write_to_reg = 1;
+			write_to_reg = true;
 		break;
 	case TWL4030_REG_PREDR_CTL:
 		if (twl4030->predriver_enabled)
-			write_to_reg = 1;
+			write_to_reg = true;
 		break;
 	case TWL4030_REG_PRECKL_CTL:
 		if (twl4030->carkitl_enabled)
-			write_to_reg = 1;
+			write_to_reg = true;
 		break;
 	case TWL4030_REG_PRECKR_CTL:
 		if (twl4030->carkitr_enabled)
-			write_to_reg = 1;
+			write_to_reg = true;
 		break;
 	case TWL4030_REG_HS_GAIN_SET:
 		if (twl4030->hsl_enabled || twl4030->hsr_enabled)
-			write_to_reg = 1;
+			write_to_reg = true;
 		break;
 	default:
 		/* All other register can be written */
-		write_to_reg = 1;
+		write_to_reg = true;
 		break;
 	}
-	if (write_to_reg)
-		return twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
-					    value, reg);
+
+	return write_to_reg;
+}
+
+static int twl4030_write(struct snd_soc_codec *codec, unsigned int reg,
+			 unsigned int value)
+{
+	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
+
+	/* Update the ctl cache */
+	switch (reg) {
+	case TWL4030_REG_EAR_CTL:
+	case TWL4030_REG_PREDL_CTL:
+	case TWL4030_REG_PREDR_CTL:
+	case TWL4030_REG_PRECKL_CTL:
+	case TWL4030_REG_PRECKR_CTL:
+	case TWL4030_REG_HS_GAIN_SET:
+		twl4030->ctl_cache[reg - TWL4030_REG_EAR_CTL] = value;
+		break;
+	default:
+		break;
+	}
+
+	if (twl4030_can_write_to_chip(twl4030, reg))
+		return twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, value, reg);
 
 	return 0;
 }
···
 	else
 		mode = twl4030_audio_disable_resource(TWL4030_AUDIO_RES_POWER);
 
-	if (mode >= 0) {
-		twl4030_write_reg_cache(codec, TWL4030_REG_CODEC_MODE, mode);
+	if (mode >= 0)
 		twl4030->codec_powered = enable;
-	}
 
 	/* REVISIT: this delay is present in TI sample drivers */
 	/* but there seems to be no TRM requirement for it     */
 	udelay(10);
-}
-
-static inline void twl4030_check_defaults(struct snd_soc_codec *codec)
-{
-	int i, difference = 0;
-	u8 val;
-
-	dev_dbg(codec->dev, "Checking TWL audio default configuration\n");
-	for (i = 1; i <= TWL4030_REG_MISC_SET_2; i++) {
-		twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &val, i);
-		if (val != twl4030_reg[i]) {
-			difference++;
-			dev_dbg(codec->dev,
-				 "Reg 0x%02x: chip: 0x%02x driver: 0x%02x\n",
-				 i, val, twl4030_reg[i]);
-		}
-	}
-	dev_dbg(codec->dev, "Found %d non-matching registers. %s\n",
-		 difference, difference ? "Not OK" : "OK");
-}
-
-static inline void twl4030_reset_registers(struct snd_soc_codec *codec)
-{
-	int i;
-
-	/* set all audio section registers to reasonable defaults */
-	for (i = TWL4030_REG_OPTION; i <= TWL4030_REG_MISC_SET_2; i++)
-		if (i != TWL4030_REG_APLL_CTL)
-			twl4030_write(codec, i, twl4030_reg[i]);
-
 }
 
 static void twl4030_setup_pdata_of(struct twl4030_codec_data *pdata,
···
 		}
 	}
 
-	/* Check defaults, if instructed before anything else */
-	if (pdata && pdata->check_defaults)
-		twl4030_check_defaults(codec);
-
-	/* Reset registers, if no setup data or if instructed to do so */
-	if (!pdata || (pdata && pdata->reset_registers))
-		twl4030_reset_registers(codec);
-
-	/* Refresh APLL_CTL register from HW */
-	twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &byte,
-			    TWL4030_REG_APLL_CTL);
-	twl4030_write_reg_cache(codec, TWL4030_REG_APLL_CTL, byte);
+	/* Initialize the local ctl register cache */
+	tw4030_init_ctl_cache(twl4030);
 
 	/* anti-pop when changing analog gain */
-	reg = twl4030_read_reg_cache(codec, TWL4030_REG_MISC_SET_1);
+	reg = twl4030_read(codec, TWL4030_REG_MISC_SET_1);
 	twl4030_write(codec, TWL4030_REG_MISC_SET_1,
-		reg | TWL4030_SMOOTH_ANAVOL_EN);
+		      reg | TWL4030_SMOOTH_ANAVOL_EN);
 
 	twl4030_write(codec, TWL4030_REG_OPTION,
-		TWL4030_ATXL1_EN | TWL4030_ATXR1_EN |
-		TWL4030_ARXL2_EN | TWL4030_ARXR2_EN);
+		      TWL4030_ATXL1_EN | TWL4030_ATXR1_EN |
+		      TWL4030_ARXL2_EN | TWL4030_ARXR2_EN);
 
 	/* REG_ARXR2_APGA_CTL reset according to the TRM: 0dB, DA_EN */
 	twl4030_write(codec, TWL4030_REG_ARXR2_APGA_CTL, 0x32);
···
 
 	twl4030->pdata = pdata;
 
-	reg = twl4030_read_reg_cache(codec, TWL4030_REG_HS_POPN_SET);
+	reg = twl4030_read(codec, TWL4030_REG_HS_POPN_SET);
 	reg &= ~TWL4030_RAMP_DELAY;
 	reg |= (pdata->ramp_delay_value << 2);
-	twl4030_write_reg_cache(codec, TWL4030_REG_HS_POPN_SET, reg);
+	twl4030_write(codec, TWL4030_REG_HS_POPN_SET, reg);
 
 	/* initiate offset cancellation */
 	twl4030_codec_enable(codec, 1);
 
-	reg = twl4030_read_reg_cache(codec, TWL4030_REG_ANAMICL);
+	reg = twl4030_read(codec, TWL4030_REG_ANAMICL);
 	reg &= ~TWL4030_OFFSET_CNCL_SEL;
 	reg |= pdata->offset_cncl_path;
 	twl4030_write(codec, TWL4030_REG_ANAMICL,
-		reg | TWL4030_CNCL_OFFSET_START);
+		      reg | TWL4030_CNCL_OFFSET_START);
 
 	/*
 	 * Wait for offset cancellation to complete.
···
 	msleep(20);
 	do {
 		usleep_range(1000, 2000);
+		twl_set_regcache_bypass(TWL4030_MODULE_AUDIO_VOICE, true);
 		twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &byte,
-				    TWL4030_REG_ANAMICL);
+				TWL4030_REG_ANAMICL);
+		twl_set_regcache_bypass(TWL4030_MODULE_AUDIO_VOICE, false);
 	} while ((i++ < 100) &&
 		 ((byte & TWL4030_CNCL_OFFSET_START) ==
 		  TWL4030_CNCL_OFFSET_START));
-
-	/* Make sure that the reg_cache has the same value as the HW */
-	twl4030_write_reg_cache(codec, TWL4030_REG_ANAMICL, byte);
 
 	twl4030_codec_enable(codec, 0);
 }
···
 			status = twl4030_audio_disable_resource(
 							TWL4030_AUDIO_RES_APLL);
 	}
-
-	if (status >= 0)
-		twl4030_write_reg_cache(codec, TWL4030_REG_APLL_CTL, status);
 }
 
 /* Earpiece */
···
  */
 #define TWL4030_OUTPUT_PGA(pin_name, reg, mask)				\
 static int pin_name##pga_event(struct snd_soc_dapm_widget *w,		\
-		struct snd_kcontrol *kcontrol, int event)		\
+			       struct snd_kcontrol *kcontrol, int event) \
 {									\
 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(w->codec); \
 									\
 	switch (event) {						\
 	case SND_SOC_DAPM_POST_PMU:					\
 		twl4030->pin_name##_enabled = 1;			\
-		twl4030_write(w->codec, reg,				\
-			twl4030_read_reg_cache(w->codec, reg));		\
+		twl4030_write(w->codec, reg, twl4030_read(w->codec, reg)); \
 		break;							\
 	case SND_SOC_DAPM_POST_PMD:					\
 		twl4030->pin_name##_enabled = 0;			\
-		twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,		\
-					0, reg);			\
+		twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, 0, reg);	\
 		break;							\
 	}								\
 	return 0;							\
···
 {
 	unsigned char hs_ctl;
 
-	hs_ctl = twl4030_read_reg_cache(codec, reg);
+	hs_ctl = twl4030_read(codec, reg);
 
 	if (ramp) {
 		/* HF ramp-up */
···
 }
 
 static int handsfreelpga_event(struct snd_soc_dapm_widget *w,
-		struct snd_kcontrol *kcontrol, int event)
+			       struct snd_kcontrol *kcontrol, int event)
 {
 	switch (event) {
 	case SND_SOC_DAPM_POST_PMU:
···
 }
 
 static int handsfreerpga_event(struct snd_soc_dapm_widget *w,
-		struct snd_kcontrol *kcontrol, int event)
+			       struct snd_kcontrol *kcontrol, int event)
 {
 	switch (event) {
 	case SND_SOC_DAPM_POST_PMU:
···
 }
 
 static int vibramux_event(struct snd_soc_dapm_widget *w,
-		struct snd_kcontrol *kcontrol, int event)
+			  struct snd_kcontrol *kcontrol, int event)
 {
 	twl4030_write(w->codec, TWL4030_REG_VIBRA_SET, 0xff);
 	return 0;
 }
 
 static int apll_event(struct snd_soc_dapm_widget *w,
-		struct snd_kcontrol *kcontrol, int event)
+		      struct snd_kcontrol *kcontrol, int event)
 {
 	switch (event) {
 	case SND_SOC_DAPM_PRE_PMU:
···
 }
 
 static int aif_event(struct snd_soc_dapm_widget *w,
-		struct snd_kcontrol *kcontrol, int event)
+		     struct snd_kcontrol *kcontrol, int event)
 {
 	u8 audio_if;
 
-	audio_if = twl4030_read_reg_cache(w->codec, TWL4030_REG_AUDIO_IF);
+	audio_if = twl4030_read(w->codec, TWL4030_REG_AUDIO_IF);
 	switch (event) {
 	case SND_SOC_DAPM_PRE_PMU:
 		/* Enable AIF */
···
 		twl4030_apll_enable(w->codec, 1);
 
 		twl4030_write(w->codec, TWL4030_REG_AUDIO_IF,
-						audio_if | TWL4030_AIF_EN);
+			      audio_if | TWL4030_AIF_EN);
 		break;
 	case SND_SOC_DAPM_POST_PMD:
 		/* disable the DAI before we stop it's source PLL */
 		twl4030_write(w->codec, TWL4030_REG_AUDIO_IF,
-						audio_if &  ~TWL4030_AIF_EN);
+			      audio_if &  ~TWL4030_AIF_EN);
 		twl4030_apll_enable(w->codec, 0);
 		break;
 	}
···
 				    8388608, 16777216, 33554432, 67108864};
 	unsigned int delay;
 
-	hs_gain = twl4030_read_reg_cache(codec, TWL4030_REG_HS_GAIN_SET);
-	hs_pop = twl4030_read_reg_cache(codec, TWL4030_REG_HS_POPN_SET);
+	hs_gain = twl4030_read(codec, TWL4030_REG_HS_GAIN_SET);
+	hs_pop = twl4030_read(codec, TWL4030_REG_HS_POPN_SET);
 	delay = (ramp_base[(hs_pop & TWL4030_RAMP_DELAY) >> 2] /
 		twl4030->sysclk) + 1;
 
···
 		hs_pop |= TWL4030_VMID_EN;
 		twl4030_write(codec, TWL4030_REG_HS_POPN_SET, hs_pop);
 		/* Actually write to the register */
-		twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
-					hs_gain,
-					TWL4030_REG_HS_GAIN_SET);
+		twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, hs_gain,
+				 TWL4030_REG_HS_GAIN_SET);
 		hs_pop |= TWL4030_RAMP_EN;
 		twl4030_write(codec, TWL4030_REG_HS_POPN_SET, hs_pop);
 		/* Wait ramp delay time + 1, so the VMID can settle */
···
 		/* Wait ramp delay time + 1, so the VMID can settle */
 		twl4030_wait_ms(delay);
 		/* Bypass the reg_cache to mute the headset */
-		twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
-					hs_gain & (~0x0f),
-					TWL4030_REG_HS_GAIN_SET);
+		twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, hs_gain & (~0x0f),
+				 TWL4030_REG_HS_GAIN_SET);
 
 		hs_pop &= ~TWL4030_VMID_EN;
 		twl4030_write(codec, TWL4030_REG_HS_POPN_SET, hs_pop);
···
 }
 
 static int headsetlpga_event(struct snd_soc_dapm_widget *w,
-		struct snd_kcontrol *kcontrol, int event)
+			     struct snd_kcontrol *kcontrol, int event)
 {
 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(w->codec);
 
···
 }
 
 static int headsetrpga_event(struct snd_soc_dapm_widget *w,
-		struct snd_kcontrol *kcontrol, int event)
+			     struct snd_kcontrol *kcontrol, int event)
 {
 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(w->codec);
 
···
 }
 
 static int digimic_event(struct snd_soc_dapm_widget *w,
-		struct snd_kcontrol *kcontrol, int event)
+			 struct snd_kcontrol *kcontrol, int event)
 {
 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(w->codec);
 	struct twl4030_codec_data *pdata = twl4030->pdata;
···
  * Custom volsw and volsw_2r get/put functions to handle these gain bits.
  */
 static int snd_soc_get_volsw_twl4030(struct snd_kcontrol *kcontrol,
-	struct snd_ctl_elem_value *ucontrol)
+				     struct snd_ctl_elem_value *ucontrol)
 {
 	struct soc_mixer_control *mc =
 		(struct soc_mixer_control *)kcontrol->private_value;
···
 }
 
 static int snd_soc_put_volsw_twl4030(struct snd_kcontrol *kcontrol,
-	struct snd_ctl_elem_value *ucontrol)
+				     struct snd_ctl_elem_value *ucontrol)
 {
 	struct soc_mixer_control *mc =
 		(struct soc_mixer_control *)kcontrol->private_value;
···
 }
 
 static int snd_soc_get_volsw_r2_twl4030(struct snd_kcontrol *kcontrol,
-	struct snd_ctl_elem_value *ucontrol)
+					struct snd_ctl_elem_value *ucontrol)
 {
 	struct soc_mixer_control *mc =
 		(struct soc_mixer_control *)kcontrol->private_value;
···
 }
 
 static int snd_soc_put_volsw_r2_twl4030(struct snd_kcontrol *kcontrol,
-	struct snd_ctl_elem_value *ucontrol)
+					struct snd_ctl_elem_value *ucontrol)
 {
 	struct soc_mixer_control *mc =
 		(struct soc_mixer_control *)kcontrol->private_value;
···
 /* In case of 4 channel mode, the RX1 L/R for playback and the TX2 L/R for
  * capture has to be enabled/disabled. */
 static void twl4030_tdm_enable(struct snd_soc_codec *codec, int direction,
-				int enable)
+			       int enable)
 {
 	u8 reg, mask;
 
-	reg = twl4030_read_reg_cache(codec, TWL4030_REG_OPTION);
+	reg = twl4030_read(codec, TWL4030_REG_OPTION);
 
 	if (direction == SNDRV_PCM_STREAM_PLAYBACK)
 		mask = TWL4030_ARXL1_VRX_EN | TWL4030_ARXR1_EN;
···
 		if (twl4030->configured)
 			twl4030_constraints(twl4030, twl4030->master_substream);
 	} else {
-		if (!(twl4030_read_reg_cache(codec, TWL4030_REG_CODEC_MODE) &
+		if (!(twl4030_read(codec, TWL4030_REG_CODEC_MODE) &
 			TWL4030_OPTION_1)) {
 			/* In option2 4 channel is not supported, set the
 			 * constraint for the first stream for channels, the
 			 * second stream will 'inherit' this cosntraint */
 			snd_pcm_hw_constraint_minmax(substream->runtime,
-						SNDRV_PCM_HW_PARAM_CHANNELS,
-						2, 2);
+						     SNDRV_PCM_HW_PARAM_CHANNELS,
+						     2, 2);
 		}
 		twl4030->master_substream = substream;
 	}
···
 }
 
 static int twl4030_hw_params(struct snd_pcm_substream *substream,
-			   struct snd_pcm_hw_params *params,
-			   struct snd_soc_dai *dai)
+			     struct snd_pcm_hw_params *params,
+			     struct snd_soc_dai *dai)
 {
 	struct snd_soc_codec *codec = dai->codec;
 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
···
 
 	 /* If the substream has 4 channel, do the necessary setup */
 	if (params_channels(params) == 4) {
-		format = twl4030_read_reg_cache(codec, TWL4030_REG_AUDIO_IF);
-		mode = twl4030_read_reg_cache(codec, TWL4030_REG_CODEC_MODE);
+		format = twl4030_read(codec, TWL4030_REG_AUDIO_IF);
+		mode = twl4030_read(codec, TWL4030_REG_CODEC_MODE);
 
 		/* Safety check: are we in the correct operating mode and
 		 * the interface is in TDM mode? */
···
 		return 0;
 
 	/* bit rate */
-	old_mode = twl4030_read_reg_cache(codec,
-			TWL4030_REG_CODEC_MODE) & ~TWL4030_CODECPDZ;
+	old_mode = twl4030_read(codec,
+				TWL4030_REG_CODEC_MODE) & ~TWL4030_CODECPDZ;
 	mode = old_mode & ~TWL4030_APLL_RATE;
 
 	switch (params_rate(params)) {
···
 	}
 
 	/* sample size */
-	old_format = twl4030_read_reg_cache(codec, TWL4030_REG_AUDIO_IF);
+	old_format = twl4030_read(codec, TWL4030_REG_AUDIO_IF);
 	format = old_format;
 	format &= ~TWL4030_DATA_WIDTH;
 	switch (params_format(params)) {
···
 	return 0;
 }
 
-static int twl4030_set_dai_sysclk(struct snd_soc_dai *codec_dai,
-		int clk_id, unsigned int freq, int dir)
+static int twl4030_set_dai_sysclk(struct snd_soc_dai *codec_dai, int clk_id,
+				  unsigned int freq, int dir)
 {
 	struct snd_soc_codec *codec = codec_dai->codec;
 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
···
 	return 0;
 }
 
-static int twl4030_set_dai_fmt(struct snd_soc_dai *codec_dai,
-			     unsigned int fmt)
+static int twl4030_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
 {
 	struct snd_soc_codec *codec = codec_dai->codec;
 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
 	u8 old_format, format;
 
 	/* get format */
-	old_format = twl4030_read_reg_cache(codec, TWL4030_REG_AUDIO_IF);
+	old_format = twl4030_read(codec, TWL4030_REG_AUDIO_IF);
 	format = old_format;
 
 	/* set master/slave audio interface */
···
 static int twl4030_set_tristate(struct snd_soc_dai *dai, int tristate)
 {
 	struct snd_soc_codec *codec = dai->codec;
-	u8 reg = twl4030_read_reg_cache(codec, TWL4030_REG_AUDIO_IF);
+	u8 reg = twl4030_read(codec, TWL4030_REG_AUDIO_IF);
 
 	if (tristate)
 		reg |= TWL4030_AIF_TRI_EN;
···
 /* In case of voice mode, the RX1 L(VRX) for downlink and the TX2 L/R
  * (VTXL, VTXR) for uplink has to be enabled/disabled. */
 static void twl4030_voice_enable(struct snd_soc_codec *codec, int direction,
-				int enable)
+				 int enable)
 {
 	u8 reg, mask;
 
-	reg = twl4030_read_reg_cache(codec, TWL4030_REG_OPTION);
+	reg = twl4030_read(codec, TWL4030_REG_OPTION);
 
 	if (direction == SNDRV_PCM_STREAM_PLAYBACK)
 		mask = TWL4030_ARXL1_VRX_EN;
···
 }
 
 static int twl4030_voice_startup(struct snd_pcm_substream *substream,
-		struct snd_soc_dai *dai)
+				 struct snd_soc_dai *dai)
 {
 	struct snd_soc_codec *codec = dai->codec;
 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
···
 	/* If the codec mode is not option2, the voice PCM interface is not
 	 * available.
 	 */
-	mode = twl4030_read_reg_cache(codec, TWL4030_REG_CODEC_MODE)
+	mode = twl4030_read(codec, TWL4030_REG_CODEC_MODE)
 		& TWL4030_OPT_MODE;
 
 	if (mode != TWL4030_OPTION_2) {
···
 }
 
 static void twl4030_voice_shutdown(struct snd_pcm_substream *substream,
-				struct snd_soc_dai *dai)
+				   struct snd_soc_dai *dai)
 {
 	struct snd_soc_codec *codec = dai->codec;
 
···
 }
 
 static int twl4030_voice_hw_params(struct snd_pcm_substream *substream,
-		struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
+				   struct snd_pcm_hw_params *params,
+				   struct snd_soc_dai *dai)
 {
 	struct snd_soc_codec *codec = dai->codec;
 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
···
 	twl4030_voice_enable(codec, substream->stream, 1);
 
 	/* bit rate */
-	old_mode = twl4030_read_reg_cache(codec, TWL4030_REG_CODEC_MODE)
-		& ~(TWL4030_CODECPDZ);
+	old_mode = twl4030_read(codec,
+				TWL4030_REG_CODEC_MODE) & ~TWL4030_CODECPDZ;
 	mode = old_mode;
 
 	switch (params_rate(params)) {
···
 }
 
 static int twl4030_voice_set_dai_sysclk(struct snd_soc_dai *codec_dai,
-		int clk_id, unsigned int freq, int dir)
+					int clk_id, unsigned int freq, int dir)
 {
 	struct snd_soc_codec *codec = codec_dai->codec;
 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
···
 }
 
 static int twl4030_voice_set_dai_fmt(struct snd_soc_dai *codec_dai,
-		unsigned int fmt)
+				     unsigned int fmt)
 {
 	struct snd_soc_codec *codec = codec_dai->codec;
 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
 	u8 old_format, format;
 
 	/* get format */
-	old_format = twl4030_read_reg_cache(codec, TWL4030_REG_VOICE_IF);
+	old_format = twl4030_read(codec, TWL4030_REG_VOICE_IF);
 	format = old_format;
 
 	/* set master/slave audio interface */
···
 static int twl4030_voice_set_tristate(struct snd_soc_dai *dai, int tristate)
 {
 	struct snd_soc_codec *codec = dai->codec;
-	u8 reg = twl4030_read_reg_cache(codec, TWL4030_REG_VOICE_IF);
+	u8 reg = twl4030_read(codec, TWL4030_REG_VOICE_IF);
 
 	if (tristate)
 		reg |= TWL4030_VIF_TRI_EN;
···
 	struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec);
 	struct twl4030_codec_data *pdata = twl4030->pdata;
 
-	/* Reset registers to their chip default before leaving */
-	twl4030_reset_registers(codec);
 	twl4030_set_bias_level(codec, SND_SOC_BIAS_OFF);
 
 	if (pdata && pdata->hs_extmute && gpio_is_valid(pdata->hs_extmute_gpio))
···
 static struct snd_soc_codec_driver soc_codec_dev_twl4030 = {
 	.probe = twl4030_soc_probe,
 	.remove = twl4030_soc_remove,
-	.read = twl4030_read_reg_cache,
+	.read = twl4030_read,
 	.write = twl4030_write,
 	.set_bias_level = twl4030_set_bias_level,
 	.idle_bias_off = true,
-	.reg_cache_size = sizeof(twl4030_reg),
-	.reg_word_size = sizeof(u8),
-	.reg_cache_default = twl4030_reg,
 
 	.controls = twl4030_snd_controls,
 	.num_controls = ARRAY_SIZE(twl4030_snd_controls),
···
 static int twl4030_codec_probe(struct platform_device *pdev)
 {
 	return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_twl4030,
-			twl4030_dai, ARRAY_SIZE(twl4030_dai));
+				      twl4030_dai, ARRAY_SIZE(twl4030_dai));
 }
 
 static int twl4030_codec_remove(struct platform_device *pdev)

sound/soc/codecs/wm_adsp.c

···
 	return 0;
 }
 
+static void wm_adsp2_boot_work(struct work_struct *work)
+{
+	struct wm_adsp *dsp = container_of(work,
+					   struct wm_adsp,
+					   boot_work);
+	int ret;
+	unsigned int val;
+
+	/*
+	 * For simplicity set the DSP clock rate to be the
+	 * SYSCLK rate rather than making it configurable.
+	 */
+	ret = regmap_read(dsp->regmap, ARIZONA_SYSTEM_CLOCK_1, &val);
+	if (ret != 0) {
+		adsp_err(dsp, "Failed to read SYSCLK state: %d\n", ret);
+		return;
+	}
+	val = (val & ARIZONA_SYSCLK_FREQ_MASK)
+		>> ARIZONA_SYSCLK_FREQ_SHIFT;
+
+	ret = regmap_update_bits_async(dsp->regmap,
+				       dsp->base + ADSP2_CLOCKING,
+				       ADSP2_CLK_SEL_MASK, val);
+	if (ret != 0) {
+		adsp_err(dsp, "Failed to set clock rate: %d\n", ret);
+		return;
+	}
+
+	if (dsp->dvfs) {
+		ret = regmap_read(dsp->regmap,
+				  dsp->base + ADSP2_CLOCKING, &val);
+		if (ret != 0) {
+			dev_err(dsp->dev, "Failed to read clocking: %d\n", ret);
+			return;
+		}
+
+		if ((val & ADSP2_CLK_SEL_MASK) >= 3) {
+			ret = regulator_enable(dsp->dvfs);
+			if (ret != 0) {
+				dev_err(dsp->dev,
+					"Failed to enable supply: %d\n",
+					ret);
+				return;
+			}
+
+			ret = regulator_set_voltage(dsp->dvfs,
+						    1800000,
+						    1800000);
+			if (ret != 0) {
+				dev_err(dsp->dev,
+					"Failed to raise supply: %d\n",
+					ret);
+				return;
+			}
+		}
+	}
+
+	ret = wm_adsp2_ena(dsp);
+	if (ret != 0)
+		return;
+
+	ret = wm_adsp_load(dsp);
+	if (ret != 0)
+		goto err;
+
+	ret = wm_adsp_setup_algs(dsp);
+	if (ret != 0)
+		goto err;
+
+	ret = wm_adsp_load_coeff(dsp);
+	if (ret != 0)
+		goto err;
+
+	/* Initialize caches for enabled and unset controls */
+	ret = wm_coeff_init_control_caches(dsp);
+	if (ret != 0)
+		goto err;
+
+	/* Sync set controls */
+	ret = wm_coeff_sync_controls(dsp);
+	if (ret != 0)
+		goto err;
+
+	ret = regmap_update_bits_async(dsp->regmap,
+				       dsp->base + ADSP2_CONTROL,
+				       ADSP2_CORE_ENA,
+				       ADSP2_CORE_ENA);
+	if (ret != 0)
+		goto err;
+
+	dsp->running = true;
+
+	return;
+
+err:
+	regmap_update_bits(dsp->regmap, dsp->base + ADSP2_CONTROL,
+			   ADSP2_SYS_ENA | ADSP2_CORE_ENA | ADSP2_START, 0);
+}
+
+int wm_adsp2_early_event(struct snd_soc_dapm_widget *w,
+		   struct snd_kcontrol *kcontrol, int event)
+{
+	struct snd_soc_codec *codec = w->codec;
+	struct wm_adsp *dsps = snd_soc_codec_get_drvdata(codec);
+	struct wm_adsp *dsp = &dsps[w->shift];
+
+	dsp->card = codec->card;
+
+	switch (event) {
+	case SND_SOC_DAPM_PRE_PMU:
+		queue_work(system_unbound_wq, &dsp->boot_work);
+		break;
+	default:
+		break;
+	};
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(wm_adsp2_early_event);
+
 int wm_adsp2_event(struct snd_soc_dapm_widget *w,
 		   struct snd_kcontrol *kcontrol, int event)
 {
···
 	struct wm_adsp *dsp = &dsps[w->shift];
 	struct wm_adsp_alg_region *alg_region;
 	struct wm_coeff_ctl *ctl;
-	unsigned int val;
 	int ret;
-
-	dsp->card = codec->card;
 
 	switch (event) {
 	case SND_SOC_DAPM_POST_PMU:
-		/*
-		 * For simplicity set the DSP clock rate to be the
-		 * SYSCLK rate rather than making it configurable.
-		 */
-		ret = regmap_read(dsp->regmap, ARIZONA_SYSTEM_CLOCK_1, &val);
-		if (ret != 0) {
-			adsp_err(dsp, "Failed to read SYSCLK state: %d\n",
-				 ret);
-			return ret;
-		}
-		val = (val & ARIZONA_SYSCLK_FREQ_MASK)
-			>> ARIZONA_SYSCLK_FREQ_SHIFT;
+		flush_work(&dsp->boot_work);
 
-		ret = regmap_update_bits_async(dsp->regmap,
-					       dsp->base + ADSP2_CLOCKING,
-					       ADSP2_CLK_SEL_MASK, val);
-		if (ret != 0) {
-			adsp_err(dsp, "Failed to set clock rate: %d\n",
-				 ret);
-			return ret;
-		}
+		if (!dsp->running)
+			return -EIO;
 
-		if (dsp->dvfs) {
-			ret = regmap_read(dsp->regmap,
-					  dsp->base + ADSP2_CLOCKING, &val);
-			if (ret != 0) {
-				dev_err(dsp->dev,
-					"Failed to read clocking: %d\n", ret);
-				return ret;
-			}
-
-			if ((val & ADSP2_CLK_SEL_MASK) >= 3) {
-				ret = regulator_enable(dsp->dvfs);
-				if (ret != 0) {
-					dev_err(dsp->dev,
-						"Failed to enable supply: %d\n",
-						ret);
-					return ret;
-				}
-
-				ret = regulator_set_voltage(dsp->dvfs,
-							    1800000,
-							    1800000);
-				if (ret != 0) {
-					dev_err(dsp->dev,
-						"Failed to raise supply: %d\n",
-						ret);
-					return ret;
-				}
-			}
-		}
-
-		ret = wm_adsp2_ena(dsp);
-		if (ret != 0)
-			return ret;
-
-		ret = wm_adsp_load(dsp);
+		ret = regmap_update_bits(dsp->regmap,
+					 dsp->base + ADSP2_CONTROL,
+					 ADSP2_START,
+					 ADSP2_START);
 		if (ret != 0)
 			goto err;
-
-		ret = wm_adsp_setup_algs(dsp);
-		if (ret != 0)
-			goto err;
-
-		ret = wm_adsp_load_coeff(dsp);
-		if (ret != 0)
-			goto err;
-
-		/* Initialize caches for enabled and unset controls */
-		ret = wm_coeff_init_control_caches(dsp);
-		if (ret != 0)
-			goto err;
-
-		/* Sync set controls */
-		ret = wm_coeff_sync_controls(dsp);
-		if (ret != 0)
-			goto err;
-
-		ret = regmap_update_bits_async(dsp->regmap,
-					       dsp->base + ADSP2_CONTROL,
-					       ADSP2_CORE_ENA | ADSP2_START,
-					       ADSP2_CORE_ENA | ADSP2_START);
-		if (ret != 0)
-			goto err;
-
-		dsp->running = true;
 		break;
 
 	case SND_SOC_DAPM_PRE_PMD:
···
 
 	INIT_LIST_HEAD(&adsp->alg_regions);
 	INIT_LIST_HEAD(&adsp->ctl_list);
+	INIT_WORK(&adsp->boot_work, wm_adsp2_boot_work);
 
 	if (dvfs) {
 		adsp->dvfs = devm_regulator_get(adsp->dev, "DCVDD");

sound/soc/codecs/wm_adsp.h

···
 	struct regulator *dvfs;
 
 	struct list_head ctl_list;
+
+	struct work_struct boot_work;
 };
 
 #define WM_ADSP1(wname, num) \
···
 		wm_adsp1_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD)
 
 #define WM_ADSP2(wname, num) \
-	SND_SOC_DAPM_PGA_E(wname, SND_SOC_NOPM, num, 0, NULL, 0, \
-		wm_adsp2_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD)
+{	.id = snd_soc_dapm_dai_link, .name = wname " Preloader", \
+	.reg = SND_SOC_NOPM, .shift = num, .event = wm_adsp2_early_event, \
+	.event_flags = SND_SOC_DAPM_PRE_PMU }, \
+{	.id = snd_soc_dapm_out_drv, .name = wname, \
+	.reg = SND_SOC_NOPM, .shift = num, .event = wm_adsp2_event, \
+	.event_flags = SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD }
 
 extern const struct snd_kcontrol_new wm_adsp1_fw_controls[];
 extern const struct snd_kcontrol_new wm_adsp2_fw_controls[];
···
 int wm_adsp2_init(struct wm_adsp *adsp, bool dvfs);
 int wm_adsp1_event(struct snd_soc_dapm_widget *w,
 		   struct snd_kcontrol *kcontrol, int event);
+int wm_adsp2_early_event(struct snd_soc_dapm_widget *w,
+			 struct snd_kcontrol *kcontrol, int event);
 int wm_adsp2_event(struct snd_soc_dapm_widget *w,
 		   struct snd_kcontrol *kcontrol, int event);
 

sound/soc/fsl/Kconfig

···
 config SND_SOC_FSL_SPDIF
 	tristate
 
+config SND_SOC_FSL_ESAI
+	tristate
+
 config SND_SOC_FSL_UTILS
 	tristate
 

sound/soc/fsl/Makefile

···
 snd-soc-fsl-sai-objs := fsl_sai.o
 snd-soc-fsl-ssi-objs := fsl_ssi.o
 snd-soc-fsl-spdif-objs := fsl_spdif.o
+snd-soc-fsl-esai-objs := fsl_esai.o
 snd-soc-fsl-utils-objs := fsl_utils.o
 snd-soc-fsl-dma-objs := fsl_dma.o
 obj-$(CONFIG_SND_SOC_FSL_SAI) += snd-soc-fsl-sai.o
 obj-$(CONFIG_SND_SOC_FSL_SSI) += snd-soc-fsl-ssi.o
 obj-$(CONFIG_SND_SOC_FSL_SPDIF) += snd-soc-fsl-spdif.o
+obj-$(CONFIG_SND_SOC_FSL_ESAI) += snd-soc-fsl-esai.o
 obj-$(CONFIG_SND_SOC_FSL_UTILS) += snd-soc-fsl-utils.o
 obj-$(CONFIG_SND_SOC_POWERPC_DMA) += snd-soc-fsl-dma.o
 

sound/soc/fsl/fsl_dma.c

···
 			    SNDRV_PCM_FMTBIT_S32_BE     | \
 			    SNDRV_PCM_FMTBIT_U32_LE     | \
 			    SNDRV_PCM_FMTBIT_U32_BE)
-
-#define FSLDMA_PCM_RATES (SNDRV_PCM_RATE_5512 | SNDRV_PCM_RATE_8000_192000 | \
-			  SNDRV_PCM_RATE_CONTINUOUS)
-
 struct dma_object {
 	struct snd_soc_platform_driver dai;
 	dma_addr_t ssi_stx_phys;
···
 				  SNDRV_PCM_INFO_JOINT_DUPLEX |
 				  SNDRV_PCM_INFO_PAUSE,
 	.formats		= FSLDMA_PCM_FORMATS,
-	.rates  		= FSLDMA_PCM_RATES,
-	.rate_min       	= 5512,
-	.rate_max       	= 192000,
 	.period_bytes_min       = 512,  	/* A reasonable limit */
 	.period_bytes_max       = (u32) -1,
 	.periods_min    	= NUM_DMA_LINKS,

sound/soc/fsl/fsl_esai.c

···
+/*
+ * Freescale ESAI ALSA SoC Digital Audio Interface (DAI) driver
+ *
+ * Copyright (C) 2014 Freescale Semiconductor, Inc.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#include <linux/clk.h>
+#include <linux/dmaengine.h>
+#include <linux/module.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/pcm_params.h>
+
+#include "fsl_esai.h"
+#include "imx-pcm.h"
+
+#define FSL_ESAI_RATES		SNDRV_PCM_RATE_8000_192000
+#define FSL_ESAI_FORMATS	(SNDRV_PCM_FMTBIT_S8 | \
+				SNDRV_PCM_FMTBIT_S16_LE | \
+				SNDRV_PCM_FMTBIT_S20_3LE | \
+				SNDRV_PCM_FMTBIT_S24_LE)
+
+/**
+ * fsl_esai: ESAI private data
+ *
+ * @dma_params_rx: DMA parameters for receive channel
+ * @dma_params_tx: DMA parameters for transmit channel
+ * @pdev: platform device pointer
+ * @regmap: regmap handler
+ * @coreclk: clock source to access register
+ * @extalclk: esai clock source to derive HCK, SCK and FS
+ * @fsysclk: system clock source to derive HCK, SCK and FS
+ * @fifo_depth: depth of tx/rx FIFO
+ * @slot_width: width of each DAI slot
+ * @hck_rate: clock rate of desired HCKx clock
+ * @sck_div: if using PSR/PM dividers for SCKx clock
+ * @slave_mode: if fully using DAI slave mode
+ * @synchronous: if using tx/rx synchronous mode
+ * @name: driver name
+ */
+struct fsl_esai {
+	struct snd_dmaengine_dai_dma_data dma_params_rx;
+	struct snd_dmaengine_dai_dma_data dma_params_tx;
+	struct platform_device *pdev;
+	struct regmap *regmap;
+	struct clk *coreclk;
+	struct clk *extalclk;
+	struct clk *fsysclk;
+	u32 fifo_depth;
+	u32 slot_width;
+	u32 hck_rate[2];
+	bool sck_div[2];
+	bool slave_mode;
+	bool synchronous;
+	char name[32];
+};
+
+static irqreturn_t esai_isr(int irq, void *devid)
+{
+	struct fsl_esai *esai_priv = (struct fsl_esai *)devid;
+	struct platform_device *pdev = esai_priv->pdev;
+	u32 esr;
+
+	regmap_read(esai_priv->regmap, REG_ESAI_ESR, &esr);
+
+	if (esr & ESAI_ESR_TINIT_MASK)
+		dev_dbg(&pdev->dev, "isr: Transmition Initialized\n");
+
+	if (esr & ESAI_ESR_RFF_MASK)
+		dev_warn(&pdev->dev, "isr: Receiving overrun\n");
+
+	if (esr & ESAI_ESR_TFE_MASK)
+		dev_warn(&pdev->dev, "isr: Transmition underrun\n");
+
+	if (esr & ESAI_ESR_TLS_MASK)
+		dev_dbg(&pdev->dev, "isr: Just transmitted the last slot\n");
+
+	if (esr & ESAI_ESR_TDE_MASK)
+		dev_dbg(&pdev->dev, "isr: Transmition data exception\n");
+
+	if (esr & ESAI_ESR_TED_MASK)
+		dev_dbg(&pdev->dev, "isr: Transmitting even slots\n");
+
+	if (esr & ESAI_ESR_TD_MASK)
+		dev_dbg(&pdev->dev, "isr: Transmitting data\n");
+
+	if (esr & ESAI_ESR_RLS_MASK)
+		dev_dbg(&pdev->dev, "isr: Just received the last slot\n");
+
+	if (esr & ESAI_ESR_RDE_MASK)
+		dev_dbg(&pdev->dev, "isr: Receiving data exception\n");
+
+	if (esr & ESAI_ESR_RED_MASK)
+		dev_dbg(&pdev->dev, "isr: Receiving even slots\n");
+
+	if (esr & ESAI_ESR_RD_MASK)
+		dev_dbg(&pdev->dev, "isr: Receiving data\n");
+
+	return IRQ_HANDLED;
+}
+
+/**
+ * This function is used to calculate the divisors of psr, pm, fp and it is
+ * supposed to be called in set_dai_sysclk() and set_bclk().
+ *
+ * @ratio: desired overall ratio for the paticipating dividers
+ * @usefp: for HCK setting, there is no need to set fp divider
+ * @fp: bypass other dividers by setting fp directly if fp != 0
+ * @tx: current setting is for playback or capture
+ */
+static int fsl_esai_divisor_cal(struct snd_soc_dai *dai, bool tx, u32 ratio,
+				bool usefp, u32 fp)
+{
+	struct fsl_esai *esai_priv = snd_soc_dai_get_drvdata(dai);
+	u32 psr, pm = 999, maxfp, prod, sub, savesub, i, j;
+
+	maxfp = usefp ? 16 : 1;
+
+	if (usefp && fp)
+		goto out_fp;
+
+	if (ratio > 2 * 8 * 256 * maxfp || ratio < 2) {
+		dev_err(dai->dev, "the ratio is out of range (2 ~ %d)\n",
+				2 * 8 * 256 * maxfp);
+		return -EINVAL;
+	} else if (ratio % 2) {
+		dev_err(dai->dev, "the raio must be even if using upper divider\n");
+		return -EINVAL;
+	}
+
+	ratio /= 2;
+
+	psr = ratio <= 256 * maxfp ? ESAI_xCCR_xPSR_BYPASS : ESAI_xCCR_xPSR_DIV8;
+
+	/* Set the max fluctuation -- 0.1% of the max devisor */
+	savesub = (psr ? 1 : 8)  * 256 * maxfp / 1000;
+
+	/* Find the best value for PM */
+	for (i = 1; i <= 256; i++) {
+		for (j = 1; j <= maxfp; j++) {
+			/* PSR (1 or 8) * PM (1 ~ 256) * FP (1 ~ 16) */
+			prod = (psr ? 1 : 8) * i * j;
+
+			if (prod == ratio)
+				sub = 0;
+			else if (prod / ratio == 1)
+				sub = prod - ratio;
+			else if (ratio / prod == 1)
+				sub = ratio - prod;
+			else
+				continue;
+
+			/* Calculate the fraction */
+			sub = sub * 1000 / ratio;
+			if (sub < savesub) {
+				savesub = sub;
+				pm = i;
+				fp = j;
+			}
+
+			/* We are lucky */
+			if (savesub == 0)
+				goto out;
+		}
+	}
+
+	if (pm == 999) {
+		dev_err(dai->dev, "failed to calculate proper divisors\n");
+		return -EINVAL;
+	}
+
+out:
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_xCCR(tx),
+			   ESAI_xCCR_xPSR_MASK | ESAI_xCCR_xPM_MASK,
+			   psr | ESAI_xCCR_xPM(pm));
+
+out_fp:
+	/* Bypass fp if not being required */
+	if (maxfp <= 1)
+		return 0;
+
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_xCCR(tx),
+			   ESAI_xCCR_xFP_MASK, ESAI_xCCR_xFP(fp));
+
+	return 0;
+}
+
+/**
+ * This function mainly configures the clock frequency of MCLK (HCKT/HCKR)
+ *
+ * @Parameters:
+ * clk_id: The clock source of HCKT/HCKR
+ *	  (Input from outside; output from inside, FSYS or EXTAL)
+ * freq: The required clock rate of HCKT/HCKR
+ * dir: The clock direction of HCKT/HCKR
+ *
+ * Note: If the direction is input, we do not care about clk_id.
+ */
+static int fsl_esai_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
+				   unsigned int freq, int dir)
+{
+	struct fsl_esai *esai_priv = snd_soc_dai_get_drvdata(dai);
+	struct clk *clksrc = esai_priv->extalclk;
+	bool tx = clk_id <= ESAI_HCKT_EXTAL;
+	bool in = dir == SND_SOC_CLOCK_IN;
+	u32 ret, ratio, ecr = 0;
+	unsigned long clk_rate;
+
+	/* sck_div can be only bypassed if ETO/ERO=0 and SNC_SOC_CLOCK_OUT */
+	esai_priv->sck_div[tx] = true;
+
+	/* Set the direction of HCKT/HCKR pins */
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_xCCR(tx),
+			   ESAI_xCCR_xHCKD, in ? 0 : ESAI_xCCR_xHCKD);
+
+	if (in)
+		goto out;
+
+	switch (clk_id) {
+	case ESAI_HCKT_FSYS:
+	case ESAI_HCKR_FSYS:
+		clksrc = esai_priv->fsysclk;
+		break;
+	case ESAI_HCKT_EXTAL:
+		ecr |= ESAI_ECR_ETI;
+	case ESAI_HCKR_EXTAL:
+		ecr |= ESAI_ECR_ERI;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (IS_ERR(clksrc)) {
+		dev_err(dai->dev, "no assigned %s clock\n",
+				clk_id % 2 ? "extal" : "fsys");
+		return PTR_ERR(clksrc);
+	}
+	clk_rate = clk_get_rate(clksrc);
+
+	ratio = clk_rate / freq;
+	if (ratio * freq > clk_rate)
+		ret = ratio * freq - clk_rate;
+	else if (ratio * freq < clk_rate)
+		ret = clk_rate - ratio * freq;
+	else
+		ret = 0;
+
+	/* Block if clock source can not be divided into the required rate */
+	if (ret != 0 && clk_rate / ret < 1000) {
+		dev_err(dai->dev, "failed to derive required HCK%c rate\n",
+				tx ? 'T' : 'R');
+		return -EINVAL;
+	}
+
+	if (ratio == 1) {
+		/* Bypass all the dividers if not being needed */
+		ecr |= tx ? ESAI_ECR_ETO : ESAI_ECR_ERO;
+		goto out;
+	}
+
+	ret = fsl_esai_divisor_cal(dai, tx, ratio, false, 0);
+	if (ret)
+		return ret;
+
+	esai_priv->sck_div[tx] = false;
+
+out:
+	esai_priv->hck_rate[tx] = freq;
+
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_ECR,
+			   tx ? ESAI_ECR_ETI | ESAI_ECR_ETO :
+			   ESAI_ECR_ERI | ESAI_ECR_ERO, ecr);
+
+	return 0;
+}
+
+/**
+ * This function configures the related dividers according to the bclk rate
+ */
+static int fsl_esai_set_bclk(struct snd_soc_dai *dai, bool tx, u32 freq)
+{
+	struct fsl_esai *esai_priv = snd_soc_dai_get_drvdata(dai);
+	u32 hck_rate = esai_priv->hck_rate[tx];
+	u32 sub, ratio = hck_rate / freq;
+
+	/* Don't apply for fully slave mode*/
+	if (esai_priv->slave_mode)
+		return 0;
+
+	if (ratio * freq > hck_rate)
+		sub = ratio * freq - hck_rate;
+	else if (ratio * freq < hck_rate)
+		sub = hck_rate - ratio * freq;
+	else
+		sub = 0;
+
+	/* Block if clock source can not be divided into the required rate */
+	if (sub != 0 && hck_rate / sub < 1000) {
+		dev_err(dai->dev, "failed to derive required SCK%c rate\n",
+				tx ? 'T' : 'R');
+		return -EINVAL;
+	}
+
+	if (esai_priv->sck_div[tx] && (ratio > 16 || ratio == 0)) {
+		dev_err(dai->dev, "the ratio is out of range (1 ~ 16)\n");
+		return -EINVAL;
+	}
+
+	return fsl_esai_divisor_cal(dai, tx, ratio, true,
+			esai_priv->sck_div[tx] ? 0 : ratio);
+}
+
+static int fsl_esai_set_dai_tdm_slot(struct snd_soc_dai *dai, u32 tx_mask,
+				     u32 rx_mask, int slots, int slot_width)
+{
+	struct fsl_esai *esai_priv = snd_soc_dai_get_drvdata(dai);
+
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_TCCR,
+			   ESAI_xCCR_xDC_MASK, ESAI_xCCR_xDC(slots));
+
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_TSMA,
+			   ESAI_xSMA_xS_MASK, ESAI_xSMA_xS(tx_mask));
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_TSMB,
+			   ESAI_xSMA_xS_MASK, ESAI_xSMB_xS(tx_mask));
+
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_RCCR,
+			   ESAI_xCCR_xDC_MASK, ESAI_xCCR_xDC(slots));
+
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_RSMA,
+			   ESAI_xSMA_xS_MASK, ESAI_xSMA_xS(rx_mask));
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_RSMB,
+			   ESAI_xSMA_xS_MASK, ESAI_xSMB_xS(rx_mask));
+
+	esai_priv->slot_width = slot_width;
+
+	return 0;
+}
+
+static int fsl_esai_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+	struct fsl_esai *esai_priv = snd_soc_dai_get_drvdata(dai);
+	u32 xcr = 0, xccr = 0, mask;
+
+	/* DAI mode */
+	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+	case SND_SOC_DAIFMT_I2S:
+		/* Data on rising edge of bclk, frame low, 1clk before data */
+		xcr |= ESAI_xCR_xFSR;
+		xccr |= ESAI_xCCR_xFSP | ESAI_xCCR_xCKP | ESAI_xCCR_xHCKP;
+		break;
+	case SND_SOC_DAIFMT_LEFT_J:
+		/* Data on rising edge of bclk, frame high */
+		xccr |= ESAI_xCCR_xCKP | ESAI_xCCR_xHCKP;
+		break;
+	case SND_SOC_DAIFMT_RIGHT_J:
+		/* Data on rising edge of bclk, frame high, right aligned */
+		xccr |= ESAI_xCCR_xCKP | ESAI_xCCR_xHCKP | ESAI_xCR_xWA;
+		break;
+	case SND_SOC_DAIFMT_DSP_A:
+		/* Data on rising edge of bclk, frame high, 1clk before data */
+		xcr |= ESAI_xCR_xFSL | ESAI_xCR_xFSR;
+		xccr |= ESAI_xCCR_xCKP | ESAI_xCCR_xHCKP;
+		break;
+	case SND_SOC_DAIFMT_DSP_B:
+		/* Data on rising edge of bclk, frame high */
+		xcr |= ESAI_xCR_xFSL;
+		xccr |= ESAI_xCCR_xCKP | ESAI_xCCR_xHCKP;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* DAI clock inversion */
+	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+	case SND_SOC_DAIFMT_NB_NF:
+		/* Nothing to do for both normal cases */
+		break;
+	case SND_SOC_DAIFMT_IB_NF:
+		/* Invert bit clock */
+		xccr ^= ESAI_xCCR_xCKP | ESAI_xCCR_xHCKP;
+		break;
+	case SND_SOC_DAIFMT_NB_IF:
+		/* Invert frame clock */
+		xccr ^= ESAI_xCCR_xFSP;
+		break;
+	case SND_SOC_DAIFMT_IB_IF:
+		/* Invert both clocks */
+		xccr ^= ESAI_xCCR_xCKP | ESAI_xCCR_xHCKP | ESAI_xCCR_xFSP;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	esai_priv->slave_mode = false;
+
+	/* DAI clock master masks */
+	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+	case SND_SOC_DAIFMT_CBM_CFM:
+		esai_priv->slave_mode = true;
+		break;
+	case SND_SOC_DAIFMT_CBS_CFM:
+		xccr |= ESAI_xCCR_xCKD;
+		break;
+	case SND_SOC_DAIFMT_CBM_CFS:
+		xccr |= ESAI_xCCR_xFSD;
+		break;
+	case SND_SOC_DAIFMT_CBS_CFS:
+		xccr |= ESAI_xCCR_xFSD | ESAI_xCCR_xCKD;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	mask = ESAI_xCR_xFSL | ESAI_xCR_xFSR;
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_TCR, mask, xcr);
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_RCR, mask, xcr);
+
+	mask = ESAI_xCCR_xCKP | ESAI_xCCR_xHCKP | ESAI_xCCR_xFSP |
+		ESAI_xCCR_xFSD | ESAI_xCCR_xCKD | ESAI_xCR_xWA;
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_TCCR, mask, xccr);
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_RCCR, mask, xccr);
+
+	return 0;
+}
+
+static int fsl_esai_startup(struct snd_pcm_substream *substream,
+			    struct snd_soc_dai *dai)
+{
+	struct fsl_esai *esai_priv = snd_soc_dai_get_drvdata(dai);
+
+	/*
+	 * Some platforms might use the same bit to gate all three or two of
+	 * clocks, so keep all clocks open/close at the same time for safety
+	 */
+	clk_prepare_enable(esai_priv->coreclk);
+	if (!IS_ERR(esai_priv->extalclk))
+		clk_prepare_enable(esai_priv->extalclk);
+	if (!IS_ERR(esai_priv->fsysclk))
+		clk_prepare_enable(esai_priv->fsysclk);
+
+	if (!dai->active) {
+		/* Reset Port C */
+		regmap_update_bits(esai_priv->regmap, REG_ESAI_PRRC,
+				   ESAI_PRRC_PDC_MASK, ESAI_PRRC_PDC(ESAI_GPIO));
+		regmap_update_bits(esai_priv->regmap, REG_ESAI_PCRC,
+				   ESAI_PCRC_PC_MASK, ESAI_PCRC_PC(ESAI_GPIO));
+
+		/* Set synchronous mode */
+		regmap_update_bits(esai_priv->regmap, REG_ESAI_SAICR,
+				   ESAI_SAICR_SYNC, esai_priv->synchronous ?
+				   ESAI_SAICR_SYNC : 0);
+
+		/* Set a default slot number -- 2 */
+		regmap_update_bits(esai_priv->regmap, REG_ESAI_TCCR,
+				   ESAI_xCCR_xDC_MASK, ESAI_xCCR_xDC(2));
+		regmap_update_bits(esai_priv->regmap, REG_ESAI_RCCR,
+				   ESAI_xCCR_xDC_MASK, ESAI_xCCR_xDC(2));
+	}
+
+	return 0;
+}
+
+static int fsl_esai_hw_params(struct snd_pcm_substream *substream,
+			      struct snd_pcm_hw_params *params,
+			      struct snd_soc_dai *dai)
+{
+	struct fsl_esai *esai_priv = snd_soc_dai_get_drvdata(dai);
+	bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
+	u32 width = snd_pcm_format_width(params_format(params));
+	u32 channels = params_channels(params);
+	u32 bclk, mask, val, ret;
+
+	bclk = params_rate(params) * esai_priv->slot_width * 2;
+
+	ret = fsl_esai_set_bclk(dai, tx, bclk);
+	if (ret)
+		return ret;
+
+	/* Use Normal mode to support monaural audio */
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_xCR(tx),
+			   ESAI_xCR_xMOD_MASK, params_channels(params) > 1 ?
+			   ESAI_xCR_xMOD_NETWORK : 0);
+
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_xFCR(tx),
+			   ESAI_xFCR_xFR_MASK, ESAI_xFCR_xFR);
+
+	mask = ESAI_xFCR_xFR_MASK | ESAI_xFCR_xWA_MASK | ESAI_xFCR_xFWM_MASK |
+	      (tx ? ESAI_xFCR_TE_MASK | ESAI_xFCR_TIEN : ESAI_xFCR_RE_MASK);
+	val = ESAI_xFCR_xWA(width) | ESAI_xFCR_xFWM(esai_priv->fifo_depth) |
+	     (tx ? ESAI_xFCR_TE(channels) | ESAI_xFCR_TIEN : ESAI_xFCR_RE(channels));
+
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_xFCR(tx), mask, val);
+
+	mask = ESAI_xCR_xSWS_MASK | (tx ? ESAI_xCR_PADC : 0);
+	val = ESAI_xCR_xSWS(esai_priv->slot_width, width) | (tx ? ESAI_xCR_PADC : 0);
+
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_xCR(tx), mask, val);
+
+	return 0;
+}
+
+static void fsl_esai_shutdown(struct snd_pcm_substream *substream,
+			      struct snd_soc_dai *dai)
+{
+	struct fsl_esai *esai_priv = snd_soc_dai_get_drvdata(dai);
+
+	if (!IS_ERR(esai_priv->fsysclk))
+		clk_disable_unprepare(esai_priv->fsysclk);
+	if (!IS_ERR(esai_priv->extalclk))
+		clk_disable_unprepare(esai_priv->extalclk);
+	clk_disable_unprepare(esai_priv->coreclk);
+}
+
+static int fsl_esai_trigger(struct snd_pcm_substream *substream, int cmd,
+			    struct snd_soc_dai *dai)
+{
+	struct fsl_esai *esai_priv = snd_soc_dai_get_drvdata(dai);
+	bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
+	u8 i, channels = substream->runtime->channels;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		regmap_update_bits(esai_priv->regmap, REG_ESAI_xFCR(tx),
+				   ESAI_xFCR_xFEN_MASK, ESAI_xFCR_xFEN);
+
+		/* Write initial words reqiured by ESAI as normal procedure */
+		for (i = 0; tx && i < channels; i++)
+			regmap_write(esai_priv->regmap, REG_ESAI_ETDR, 0x0);
+
+		regmap_update_bits(esai_priv->regmap, REG_ESAI_xCR(tx),
+				   tx ? ESAI_xCR_TE_MASK : ESAI_xCR_RE_MASK,
+				   tx ? ESAI_xCR_TE(channels) : ESAI_xCR_RE(channels));
+		break;
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		regmap_update_bits(esai_priv->regmap, REG_ESAI_xCR(tx),
+				   tx ? ESAI_xCR_TE_MASK : ESAI_xCR_RE_MASK, 0);
+
+		/* Disable and reset FIFO */
+		regmap_update_bits(esai_priv->regmap, REG_ESAI_xFCR(tx),
+				   ESAI_xFCR_xFR | ESAI_xFCR_xFEN, ESAI_xFCR_xFR);
+		regmap_update_bits(esai_priv->regmap, REG_ESAI_xFCR(tx),
+				   ESAI_xFCR_xFR, 0);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static struct snd_soc_dai_ops fsl_esai_dai_ops = {
+	.startup = fsl_esai_startup,
+	.shutdown = fsl_esai_shutdown,
+	.trigger = fsl_esai_trigger,
+	.hw_params = fsl_esai_hw_params,
+	.set_sysclk = fsl_esai_set_dai_sysclk,
+	.set_fmt = fsl_esai_set_dai_fmt,
+	.set_tdm_slot = fsl_esai_set_dai_tdm_slot,
+};
+
+static int fsl_esai_dai_probe(struct snd_soc_dai *dai)
+{
+	struct fsl_esai *esai_priv = snd_soc_dai_get_drvdata(dai);
+
+	snd_soc_dai_init_dma_data(dai, &esai_priv->dma_params_tx,
+				  &esai_priv->dma_params_rx);
+
+	return 0;
+}
+
+static struct snd_soc_dai_driver fsl_esai_dai = {
+	.probe = fsl_esai_dai_probe,
+	.playback = {
+		.channels_min = 1,
+		.channels_max = 12,
+		.rates = FSL_ESAI_RATES,
+		.formats = FSL_ESAI_FORMATS,
+	},
+	.capture = {
+		.channels_min = 1,
+		.channels_max = 8,
+		.rates = FSL_ESAI_RATES,
+		.formats = FSL_ESAI_FORMATS,
+	},
+	.ops = &fsl_esai_dai_ops,
+};
+
+static const struct snd_soc_component_driver fsl_esai_component = {
+	.name		= "fsl-esai",
+};
+
+static bool fsl_esai_readable_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case REG_ESAI_ERDR:
+	case REG_ESAI_ECR:
+	case REG_ESAI_ESR:
+	case REG_ESAI_TFCR:
+	case REG_ESAI_TFSR:
+	case REG_ESAI_RFCR:
+	case REG_ESAI_RFSR:
+	case REG_ESAI_RX0:
+	case REG_ESAI_RX1:
+	case REG_ESAI_RX2:
+	case REG_ESAI_RX3:
+	case REG_ESAI_SAISR:
+	case REG_ESAI_SAICR:
+	case REG_ESAI_TCR:
+	case REG_ESAI_TCCR:
+	case REG_ESAI_RCR:
+	case REG_ESAI_RCCR:
+	case REG_ESAI_TSMA:
+	case REG_ESAI_TSMB:
+	case REG_ESAI_RSMA:
+	case REG_ESAI_RSMB:
+	case REG_ESAI_PRRC:
+	case REG_ESAI_PCRC:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool fsl_esai_writeable_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case REG_ESAI_ETDR:
+	case REG_ESAI_ECR:
+	case REG_ESAI_TFCR:
+	case REG_ESAI_RFCR:
+	case REG_ESAI_TX0:
+	case REG_ESAI_TX1:
+	case REG_ESAI_TX2:
+	case REG_ESAI_TX3:
+	case REG_ESAI_TX4:
+	case REG_ESAI_TX5:
+	case REG_ESAI_TSR:
+	case REG_ESAI_SAICR:
+	case REG_ESAI_TCR:
+	case REG_ESAI_TCCR:
+	case REG_ESAI_RCR:
+	case REG_ESAI_RCCR:
+	case REG_ESAI_TSMA:
+	case REG_ESAI_TSMB:
+	case REG_ESAI_RSMA:
+	case REG_ESAI_RSMB:
+	case REG_ESAI_PRRC:
+	case REG_ESAI_PCRC:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static const struct regmap_config fsl_esai_regmap_config = {
+	.reg_bits = 32,
+	.reg_stride = 4,
+	.val_bits = 32,
+
+	.max_register = REG_ESAI_PCRC,
+	.readable_reg = fsl_esai_readable_reg,
+	.writeable_reg = fsl_esai_writeable_reg,
+};
+
+static int fsl_esai_probe(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	struct fsl_esai *esai_priv;
+	struct resource *res;
+	const uint32_t *iprop;
+	void __iomem *regs;
+	int irq, ret;
+
+	esai_priv = devm_kzalloc(&pdev->dev, sizeof(*esai_priv), GFP_KERNEL);
+	if (!esai_priv)
+		return -ENOMEM;
+
+	esai_priv->pdev = pdev;
+	strcpy(esai_priv->name, np->name);
+
+	/* Get the addresses and IRQ */
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	regs = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(regs))
+		return PTR_ERR(regs);
+
+	esai_priv->regmap = devm_regmap_init_mmio_clk(&pdev->dev,
+			"core", regs, &fsl_esai_regmap_config);
+	if (IS_ERR(esai_priv->regmap)) {
+		dev_err(&pdev->dev, "failed to init regmap: %ld\n",
+				PTR_ERR(esai_priv->regmap));
+		return PTR_ERR(esai_priv->regmap);
+	}
+
+	esai_priv->coreclk = devm_clk_get(&pdev->dev, "core");
+	if (IS_ERR(esai_priv->coreclk)) {
+		dev_err(&pdev->dev, "failed to get core clock: %ld\n",
+				PTR_ERR(esai_priv->coreclk));
+		return PTR_ERR(esai_priv->coreclk);
+	}
+
+	esai_priv->extalclk = devm_clk_get(&pdev->dev, "extal");
+	if (IS_ERR(esai_priv->extalclk))
+		dev_warn(&pdev->dev, "failed to get extal clock: %ld\n",
+				PTR_ERR(esai_priv->extalclk));
+
+	esai_priv->fsysclk = devm_clk_get(&pdev->dev, "fsys");
+	if (IS_ERR(esai_priv->fsysclk))
+		dev_warn(&pdev->dev, "failed to get fsys clock: %ld\n",
+				PTR_ERR(esai_priv->fsysclk));
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0) {
+		dev_err(&pdev->dev, "no irq for node %s\n", np->full_name);
+		return irq;
+	}
+
+	ret = devm_request_irq(&pdev->dev, irq, esai_isr, 0,
+			       esai_priv->name, esai_priv);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to claim irq %u\n", irq);
+		return ret;
+	}
+
+	/* Set a default slot size */
+	esai_priv->slot_width = 32;
+
+	/* Set a default master/slave state */
+	esai_priv->slave_mode = true;
+
+	/* Determine the FIFO depth */
+	iprop = of_get_property(np, "fsl,fifo-depth", NULL);
+	if (iprop)
+		esai_priv->fifo_depth = be32_to_cpup(iprop);
+	else
+		esai_priv->fifo_depth = 64;
+
+	esai_priv->dma_params_tx.maxburst = 16;
+	esai_priv->dma_params_rx.maxburst = 16;
+	esai_priv->dma_params_tx.addr = res->start + REG_ESAI_ETDR;
+	esai_priv->dma_params_rx.addr = res->start + REG_ESAI_ERDR;
+
+	esai_priv->synchronous =
+		of_property_read_bool(np, "fsl,esai-synchronous");
+
+	/* Implement full symmetry for synchronous mode */
+	if (esai_priv->synchronous) {
+		fsl_esai_dai.symmetric_rates = 1;
+		fsl_esai_dai.symmetric_channels = 1;
+		fsl_esai_dai.symmetric_samplebits = 1;
+	}
+
+	dev_set_drvdata(&pdev->dev, esai_priv);
+
+	/* Reset ESAI unit */
+	ret = regmap_write(esai_priv->regmap, REG_ESAI_ECR, ESAI_ECR_ERST);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to reset ESAI: %d\n", ret);
+		return ret;
+	}
+
+	/*
+	 * We need to enable ESAI so as to access some of its registers.
+	 * Otherwise, we would fail to dump regmap from user space.
+	 */
+	ret = regmap_write(esai_priv->regmap, REG_ESAI_ECR, ESAI_ECR_ESAIEN);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to enable ESAI: %d\n", ret);
+		return ret;
+	}
+
+	ret = devm_snd_soc_register_component(&pdev->dev, &fsl_esai_component,
+					      &fsl_esai_dai, 1);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to register DAI: %d\n", ret);
+		return ret;
+	}
+
+	ret = imx_pcm_dma_init(pdev);
+	if (ret)
+		dev_err(&pdev->dev, "failed to init imx pcm dma: %d\n", ret);
+
+	return ret;
+}
+
+static const struct of_device_id fsl_esai_dt_ids[] = {
+	{ .compatible = "fsl,imx35-esai", },
+	{}
+};
+MODULE_DEVICE_TABLE(of, fsl_esai_dt_ids);
+
+static struct platform_driver fsl_esai_driver = {
+	.probe = fsl_esai_probe,
+	.driver = {
+		.name = "fsl-esai-dai",
+		.owner = THIS_MODULE,
+		.of_match_table = fsl_esai_dt_ids,
+	},
+};
+
+module_platform_driver(fsl_esai_driver);
+
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_DESCRIPTION("Freescale ESAI CPU DAI driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:fsl-esai-dai");

sound/soc/fsl/fsl_esai.h

···
+/*
+ * fsl_esai.h - ALSA ESAI interface for the Freescale i.MX SoC
+ *
+ * Copyright (C) 2014 Freescale Semiconductor, Inc.
+ *
+ * Author: Nicolin Chen <[e-mail]>
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#ifndef _FSL_ESAI_DAI_H
+#define _FSL_ESAI_DAI_H
+
+/* ESAI Register Map */
+#define REG_ESAI_ETDR		0x00
+#define REG_ESAI_ERDR		0x04
+#define REG_ESAI_ECR		0x08
+#define REG_ESAI_ESR		0x0C
+#define REG_ESAI_TFCR		0x10
+#define REG_ESAI_TFSR		0x14
+#define REG_ESAI_RFCR		0x18
+#define REG_ESAI_RFSR		0x1C
+#define REG_ESAI_xFCR(tx)	(tx ? REG_ESAI_TFCR : REG_ESAI_RFCR)
+#define REG_ESAI_xFSR(tx)	(tx ? REG_ESAI_TFSR : REG_ESAI_RFSR)
+#define REG_ESAI_TX0		0x80
+#define REG_ESAI_TX1		0x84
+#define REG_ESAI_TX2		0x88
+#define REG_ESAI_TX3		0x8C
+#define REG_ESAI_TX4		0x90
+#define REG_ESAI_TX5		0x94
+#define REG_ESAI_TSR		0x98
+#define REG_ESAI_RX0		0xA0
+#define REG_ESAI_RX1		0xA4
+#define REG_ESAI_RX2		0xA8
+#define REG_ESAI_RX3		0xAC
+#define REG_ESAI_SAISR		0xCC
+#define REG_ESAI_SAICR		0xD0
+#define REG_ESAI_TCR		0xD4
+#define REG_ESAI_TCCR		0xD8
+#define REG_ESAI_RCR		0xDC
+#define REG_ESAI_RCCR		0xE0
+#define REG_ESAI_xCR(tx)	(tx ? REG_ESAI_TCR : REG_ESAI_RCR)
+#define REG_ESAI_xCCR(tx)	(tx ? REG_ESAI_TCCR : REG_ESAI_RCCR)
+#define REG_ESAI_TSMA		0xE4
+#define REG_ESAI_TSMB		0xE8
+#define REG_ESAI_RSMA		0xEC
+#define REG_ESAI_RSMB		0xF0
+#define REG_ESAI_xSMA(tx)	(tx ? REG_ESAI_TSMA : REG_ESAI_RSMA)
+#define REG_ESAI_xSMB(tx)	(tx ? REG_ESAI_TSMB : REG_ESAI_RSMB)
+#define REG_ESAI_PRRC		0xF8
+#define REG_ESAI_PCRC		0xFC
+
+/* ESAI Control Register -- REG_ESAI_ECR 0x8 */
+#define ESAI_ECR_ETI_SHIFT	19
+#define ESAI_ECR_ETI_MASK	(1 << ESAI_ECR_ETI_SHIFT)
+#define ESAI_ECR_ETI		(1 << ESAI_ECR_ETI_SHIFT)
+#define ESAI_ECR_ETO_SHIFT	18
+#define ESAI_ECR_ETO_MASK	(1 << ESAI_ECR_ETO_SHIFT)
+#define ESAI_ECR_ETO		(1 << ESAI_ECR_ETO_SHIFT)
+#define ESAI_ECR_ERI_SHIFT	17
+#define ESAI_ECR_ERI_MASK	(1 << ESAI_ECR_ERI_SHIFT)
+#define ESAI_ECR_ERI		(1 << ESAI_ECR_ERI_SHIFT)
+#define ESAI_ECR_ERO_SHIFT	16
+#define ESAI_ECR_ERO_MASK	(1 << ESAI_ECR_ERO_SHIFT)
+#define ESAI_ECR_ERO		(1 << ESAI_ECR_ERO_SHIFT)
+#define ESAI_ECR_ERST_SHIFT	1
+#define ESAI_ECR_ERST_MASK	(1 << ESAI_ECR_ERST_SHIFT)
+#define ESAI_ECR_ERST		(1 << ESAI_ECR_ERST_SHIFT)
+#define ESAI_ECR_ESAIEN_SHIFT	0
+#define ESAI_ECR_ESAIEN_MASK	(1 << ESAI_ECR_ESAIEN_SHIFT)
+#define ESAI_ECR_ESAIEN		(1 << ESAI_ECR_ESAIEN_SHIFT)
+
+/* ESAI Status Register -- REG_ESAI_ESR 0xC */
+#define ESAI_ESR_TINIT_SHIFT	10
+#define ESAI_ESR_TINIT_MASK	(1 << ESAI_ESR_TINIT_SHIFT)
+#define ESAI_ESR_TINIT		(1 << ESAI_ESR_TINIT_SHIFT)
+#define ESAI_ESR_RFF_SHIFT	9
+#define ESAI_ESR_RFF_MASK	(1 << ESAI_ESR_RFF_SHIFT)
+#define ESAI_ESR_RFF		(1 << ESAI_ESR_RFF_SHIFT)
+#define ESAI_ESR_TFE_SHIFT	8
+#define ESAI_ESR_TFE_MASK	(1 << ESAI_ESR_TFE_SHIFT)
+#define ESAI_ESR_TFE		(1 << ESAI_ESR_TFE_SHIFT)
+#define ESAI_ESR_TLS_SHIFT	7
+#define ESAI_ESR_TLS_MASK	(1 << ESAI_ESR_TLS_SHIFT)
+#define ESAI_ESR_TLS		(1 << ESAI_ESR_TLS_SHIFT)
+#define ESAI_ESR_TDE_SHIFT	6
+#define ESAI_ESR_TDE_MASK	(1 << ESAI_ESR_TDE_SHIFT)
+#define ESAI_ESR_TDE		(1 << ESAI_ESR_TDE_SHIFT)
+#define ESAI_ESR_TED_SHIFT	5
+#define ESAI_ESR_TED_MASK	(1 << ESAI_ESR_TED_SHIFT)
+#define ESAI_ESR_TED		(1 << ESAI_ESR_TED_SHIFT)
+#define ESAI_ESR_TD_SHIFT	4
+#define ESAI_ESR_TD_MASK	(1 << ESAI_ESR_TD_SHIFT)
+#define ESAI_ESR_TD		(1 << ESAI_ESR_TD_SHIFT)
+#define ESAI_ESR_RLS_SHIFT	3
+#define ESAI_ESR_RLS_MASK	(1 << ESAI_ESR_RLS_SHIFT)
+#define ESAI_ESR_RLS		(1 << ESAI_ESR_RLS_SHIFT)
+#define ESAI_ESR_RDE_SHIFT	2
+#define ESAI_ESR_RDE_MASK	(1 << ESAI_ESR_RDE_SHIFT)
+#define ESAI_ESR_RDE		(1 << ESAI_ESR_RDE_SHIFT)
+#define ESAI_ESR_RED_SHIFT	1
+#define ESAI_ESR_RED_MASK	(1 << ESAI_ESR_RED_SHIFT)
+#define ESAI_ESR_RED		(1 << ESAI_ESR_RED_SHIFT)
+#define ESAI_ESR_RD_SHIFT	0
+#define ESAI_ESR_RD_MASK	(1 << ESAI_ESR_RD_SHIFT)
+#define ESAI_ESR_RD		(1 << ESAI_ESR_RD_SHIFT)
+
+/*
+ * Transmit FIFO Configuration Register -- REG_ESAI_TFCR 0x10
+ * Receive FIFO Configuration Register -- REG_ESAI_RFCR 0x18
+ */
+#define ESAI_xFCR_TIEN_SHIFT	19
+#define ESAI_xFCR_TIEN_MASK	(1 << ESAI_xFCR_TIEN_SHIFT)
+#define ESAI_xFCR_TIEN		(1 << ESAI_xFCR_TIEN_SHIFT)
+#define ESAI_xFCR_REXT_SHIFT	19
+#define ESAI_xFCR_REXT_MASK	(1 << ESAI_xFCR_REXT_SHIFT)
+#define ESAI_xFCR_REXT		(1 << ESAI_xFCR_REXT_SHIFT)
+#define ESAI_xFCR_xWA_SHIFT	16
+#define ESAI_xFCR_xWA_WIDTH	3
+#define ESAI_xFCR_xWA_MASK	(((1 << ESAI_xFCR_xWA_WIDTH) - 1) << ESAI_xFCR_xWA_SHIFT)
+#define ESAI_xFCR_xWA(v)	(((8 - ((v) >> 2)) << ESAI_xFCR_xWA_SHIFT) & ESAI_xFCR_xWA_MASK)
+#define ESAI_xFCR_xFWM_SHIFT	8
+#define ESAI_xFCR_xFWM_WIDTH	8
+#define ESAI_xFCR_xFWM_MASK	(((1 << ESAI_xFCR_xFWM_WIDTH) - 1) << ESAI_xFCR_xFWM_SHIFT)
+#define ESAI_xFCR_xFWM(v)	((((v) - 1) << ESAI_xFCR_xFWM_SHIFT) & ESAI_xFCR_xFWM_MASK)
+#define ESAI_xFCR_xE_SHIFT	2
+#define ESAI_xFCR_TE_WIDTH	6
+#define ESAI_xFCR_RE_WIDTH	4
+#define ESAI_xFCR_TE_MASK	(((1 << ESAI_xFCR_TE_WIDTH) - 1) << ESAI_xFCR_xE_SHIFT)
+#define ESAI_xFCR_RE_MASK	(((1 << ESAI_xFCR_RE_WIDTH) - 1) << ESAI_xFCR_xE_SHIFT)
+#define ESAI_xFCR_TE(x) 	((ESAI_xFCR_TE_MASK >> (ESAI_xFCR_TE_WIDTH - ((x + 1) >> 1))) & ESAI_xFCR_TE_MASK)
+#define ESAI_xFCR_RE(x) 	((ESAI_xFCR_RE_MASK >> (ESAI_xFCR_RE_WIDTH - ((x + 1) >> 1))) & ESAI_xFCR_RE_MASK)
+#define ESAI_xFCR_xFR_SHIFT	1
+#define ESAI_xFCR_xFR_MASK	(1 << ESAI_xFCR_xFR_SHIFT)
+#define ESAI_xFCR_xFR		(1 << ESAI_xFCR_xFR_SHIFT)
+#define ESAI_xFCR_xFEN_SHIFT	0
+#define ESAI_xFCR_xFEN_MASK	(1 << ESAI_xFCR_xFEN_SHIFT)
+#define ESAI_xFCR_xFEN		(1 << ESAI_xFCR_xFEN_SHIFT)
+
+/*
+ * Transmit FIFO Status Register -- REG_ESAI_TFSR 0x14
+ * Receive FIFO Status Register --REG_ESAI_RFSR 0x1C
+ */
+#define ESAI_xFSR_NTFO_SHIFT	12
+#define ESAI_xFSR_NRFI_SHIFT	12
+#define ESAI_xFSR_NTFI_SHIFT	8
+#define ESAI_xFSR_NRFO_SHIFT	8
+#define ESAI_xFSR_NTFx_WIDTH	3
+#define ESAI_xFSR_NRFx_WIDTH	2
+#define ESAI_xFSR_NTFO_MASK	(((1 << ESAI_xFSR_NTFx_WIDTH) - 1) << ESAI_xFSR_NTFO_SHIFT)
+#define ESAI_xFSR_NTFI_MASK	(((1 << ESAI_xFSR_NTFx_WIDTH) - 1) << ESAI_xFSR_NTFI_SHIFT)
+#define ESAI_xFSR_NRFO_MASK	(((1 << ESAI_xFSR_NRFx_WIDTH) - 1) << ESAI_xFSR_NRFO_SHIFT)
+#define ESAI_xFSR_NRFI_MASK	(((1 << ESAI_xFSR_NRFx_WIDTH) - 1) << ESAI_xFSR_NRFI_SHIFT)
+#define ESAI_xFSR_xFCNT_SHIFT	0
+#define ESAI_xFSR_xFCNT_WIDTH	8
+#define ESAI_xFSR_xFCNT_MASK	(((1 << ESAI_xFSR_xFCNT_WIDTH) - 1) << ESAI_xFSR_xFCNT_SHIFT)
+
+/* ESAI Transmit Slot Register -- REG_ESAI_TSR 0x98 */
+#define ESAI_TSR_SHIFT		0
+#define ESAI_TSR_WIDTH		24
+#define ESAI_TSR_MASK		(((1 << ESAI_TSR_WIDTH) - 1) << ESAI_TSR_SHIFT)
+
+/* Serial Audio Interface Status Register -- REG_ESAI_SAISR 0xCC */
+#define ESAI_SAISR_TODFE_SHIFT	17
+#define ESAI_SAISR_TODFE_MASK	(1 << ESAI_SAISR_TODFE_SHIFT)
+#define ESAI_SAISR_TODFE	(1 << ESAI_SAISR_TODFE_SHIFT)
+#define ESAI_SAISR_TEDE_SHIFT	16
+#define ESAI_SAISR_TEDE_MASK	(1 << ESAI_SAISR_TEDE_SHIFT)
+#define ESAI_SAISR_TEDE		(1 << ESAI_SAISR_TEDE_SHIFT)
+#define ESAI_SAISR_TDE_SHIFT	15
+#define ESAI_SAISR_TDE_MASK	(1 << ESAI_SAISR_TDE_SHIFT)
+#define ESAI_SAISR_TDE		(1 << ESAI_SAISR_TDE_SHIFT)
+#define ESAI_SAISR_TUE_SHIFT	14
+#define ESAI_SAISR_TUE_MASK	(1 << ESAI_SAISR_TUE_SHIFT)
+#define ESAI_SAISR_TUE		(1 << ESAI_SAISR_TUE_SHIFT)
+#define ESAI_SAISR_TFS_SHIFT	13
+#define ESAI_SAISR_TFS_MASK	(1 << ESAI_SAISR_TFS_SHIFT)
+#define ESAI_SAISR_TFS		(1 << ESAI_SAISR_TFS_SHIFT)
+#define ESAI_SAISR_RODF_SHIFT	10
+#define ESAI_SAISR_RODF_MASK	(1 << ESAI_SAISR_RODF_SHIFT)
+#define ESAI_SAISR_RODF		(1 << ESAI_SAISR_RODF_SHIFT)
+#define ESAI_SAISR_REDF_SHIFT	9
+#define ESAI_SAISR_REDF_MASK	(1 << ESAI_SAISR_REDF_SHIFT)
+#define ESAI_SAISR_REDF		(1 << ESAI_SAISR_REDF_SHIFT)
+#define ESAI_SAISR_RDF_SHIFT	8
+#define ESAI_SAISR_RDF_MASK	(1 << ESAI_SAISR_RDF_SHIFT)
+#define ESAI_SAISR_RDF		(1 << ESAI_SAISR_RDF_SHIFT)
+#define ESAI_SAISR_ROE_SHIFT	7
+#define ESAI_SAISR_ROE_MASK	(1 << ESAI_SAISR_ROE_SHIFT)
+#define ESAI_SAISR_ROE		(1 << ESAI_SAISR_ROE_SHIFT)
+#define ESAI_SAISR_RFS_SHIFT	6
+#define ESAI_SAISR_RFS_MASK	(1 << ESAI_SAISR_RFS_SHIFT)
+#define ESAI_SAISR_RFS		(1 << ESAI_SAISR_RFS_SHIFT)
+#define ESAI_SAISR_IF2_SHIFT	2
+#define ESAI_SAISR_IF2_MASK	(1 << ESAI_SAISR_IF2_SHIFT)
+#define ESAI_SAISR_IF2		(1 << ESAI_SAISR_IF2_SHIFT)
+#define ESAI_SAISR_IF1_SHIFT	1
+#define ESAI_SAISR_IF1_MASK	(1 << ESAI_SAISR_IF1_SHIFT)
+#define ESAI_SAISR_IF1		(1 << ESAI_SAISR_IF1_SHIFT)
+#define ESAI_SAISR_IF0_SHIFT	0
+#define ESAI_SAISR_IF0_MASK	(1 << ESAI_SAISR_IF0_SHIFT)
+#define ESAI_SAISR_IF0		(1 << ESAI_SAISR_IF0_SHIFT)
+
+/* Serial Audio Interface Control Register -- REG_ESAI_SAICR 0xD0 */
+#define ESAI_SAICR_ALC_SHIFT	8
+#define ESAI_SAICR_ALC_MASK	(1 << ESAI_SAICR_ALC_SHIFT)
+#define ESAI_SAICR_ALC		(1 << ESAI_SAICR_ALC_SHIFT)
+#define ESAI_SAICR_TEBE_SHIFT	7
+#define ESAI_SAICR_TEBE_MASK	(1 << ESAI_SAICR_TEBE_SHIFT)
+#define ESAI_SAICR_TEBE		(1 << ESAI_SAICR_TEBE_SHIFT)
+#define ESAI_SAICR_SYNC_SHIFT	6
+#define ESAI_SAICR_SYNC_MASK	(1 << ESAI_SAICR_SYNC_SHIFT)
+#define ESAI_SAICR_SYNC		(1 << ESAI_SAICR_SYNC_SHIFT)
+#define ESAI_SAICR_OF2_SHIFT	2
+#define ESAI_SAICR_OF2_MASK	(1 << ESAI_SAICR_OF2_SHIFT)
+#define ESAI_SAICR_OF2		(1 << ESAI_SAICR_OF2_SHIFT)
+#define ESAI_SAICR_OF1_SHIFT	1
+#define ESAI_SAICR_OF1_MASK	(1 << ESAI_SAICR_OF1_SHIFT)
+#define ESAI_SAICR_OF1		(1 << ESAI_SAICR_OF1_SHIFT)
+#define ESAI_SAICR_OF0_SHIFT	0
+#define ESAI_SAICR_OF0_MASK	(1 << ESAI_SAICR_OF0_SHIFT)
+#define ESAI_SAICR_OF0		(1 << ESAI_SAICR_OF0_SHIFT)
+
+/*
+ * Transmit Control Register -- REG_ESAI_TCR 0xD4
+ * Receive Control Register -- REG_ESAI_RCR 0xDC
+ */
+#define ESAI_xCR_xLIE_SHIFT	23
+#define ESAI_xCR_xLIE_MASK	(1 << ESAI_xCR_xLIE_SHIFT)
+#define ESAI_xCR_xLIE		(1 << ESAI_xCR_xLIE_SHIFT)
+#define ESAI_xCR_xIE_SHIFT	22
+#define ESAI_xCR_xIE_MASK	(1 << ESAI_xCR_xIE_SHIFT)
+#define ESAI_xCR_xIE		(1 << ESAI_xCR_xIE_SHIFT)
+#define ESAI_xCR_xEDIE_SHIFT	21
+#define ESAI_xCR_xEDIE_MASK	(1 << ESAI_xCR_xEDIE_SHIFT)
+#define ESAI_xCR_xEDIE		(1 << ESAI_xCR_xEDIE_SHIFT)
+#define ESAI_xCR_xEIE_SHIFT	20
+#define ESAI_xCR_xEIE_MASK	(1 << ESAI_xCR_xEIE_SHIFT)
+#define ESAI_xCR_xEIE		(1 << ESAI_xCR_xEIE_SHIFT)
+#define ESAI_xCR_xPR_SHIFT	19
+#define ESAI_xCR_xPR_MASK	(1 << ESAI_xCR_xPR_SHIFT)
+#define ESAI_xCR_xPR		(1 << ESAI_xCR_xPR_SHIFT)
+#define ESAI_xCR_PADC_SHIFT	17
+#define ESAI_xCR_PADC_MASK	(1 << ESAI_xCR_PADC_SHIFT)
+#define ESAI_xCR_PADC		(1 << ESAI_xCR_PADC_SHIFT)
+#define ESAI_xCR_xFSR_SHIFT	16
+#define ESAI_xCR_xFSR_MASK	(1 << ESAI_xCR_xFSR_SHIFT)
+#define ESAI_xCR_xFSR		(1 << ESAI_xCR_xFSR_SHIFT)
+#define ESAI_xCR_xFSL_SHIFT	15
+#define ESAI_xCR_xFSL_MASK	(1 << ESAI_xCR_xFSL_SHIFT)
+#define ESAI_xCR_xFSL		(1 << ESAI_xCR_xFSL_SHIFT)
+#define ESAI_xCR_xSWS_SHIFT	10
+#define ESAI_xCR_xSWS_WIDTH	5
+#define ESAI_xCR_xSWS_MASK	(((1 << ESAI_xCR_xSWS_WIDTH) - 1) << ESAI_xCR_xSWS_SHIFT)
+#define ESAI_xCR_xSWS(s, w)	((w < 24 ? (s - w + ((w - 8) >> 2)) : (s < 32 ? 0x1e : 0x1f)) << ESAI_xCR_xSWS_SHIFT)
+#define ESAI_xCR_xMOD_SHIFT	8
+#define ESAI_xCR_xMOD_WIDTH	2
+#define ESAI_xCR_xMOD_MASK	(((1 << ESAI_xCR_xMOD_WIDTH) - 1) << ESAI_xCR_xMOD_SHIFT)
+#define ESAI_xCR_xMOD_ONDEMAND	(0x1 << ESAI_xCR_xMOD_SHIFT)
+#define ESAI_xCR_xMOD_NETWORK	(0x1 << ESAI_xCR_xMOD_SHIFT)
+#define ESAI_xCR_xMOD_AC97	(0x3 << ESAI_xCR_xMOD_SHIFT)
+#define ESAI_xCR_xWA_SHIFT	7
+#define ESAI_xCR_xWA_MASK	(1 << ESAI_xCR_xWA_SHIFT)
+#define ESAI_xCR_xWA		(1 << ESAI_xCR_xWA_SHIFT)
+#define ESAI_xCR_xSHFD_SHIFT	6
+#define ESAI_xCR_xSHFD_MASK	(1 << ESAI_xCR_xSHFD_SHIFT)
+#define ESAI_xCR_xSHFD		(1 << ESAI_xCR_xSHFD_SHIFT)
+#define ESAI_xCR_xE_SHIFT	0
+#define ESAI_xCR_TE_WIDTH	6
+#define ESAI_xCR_RE_WIDTH	4
+#define ESAI_xCR_TE_MASK	(((1 << ESAI_xCR_TE_WIDTH) - 1) << ESAI_xCR_xE_SHIFT)
+#define ESAI_xCR_RE_MASK	(((1 << ESAI_xCR_RE_WIDTH) - 1) << ESAI_xCR_xE_SHIFT)
+#define ESAI_xCR_TE(x) 		((ESAI_xCR_TE_MASK >> (ESAI_xCR_TE_WIDTH - ((x + 1) >> 1))) & ESAI_xCR_TE_MASK)
+#define ESAI_xCR_RE(x) 		((ESAI_xCR_RE_MASK >> (ESAI_xCR_RE_WIDTH - ((x + 1) >> 1))) & ESAI_xCR_RE_MASK)
+
+/*
+ * Transmit Clock Control Register -- REG_ESAI_TCCR 0xD8
+ * Receive Clock Control Register -- REG_ESAI_RCCR 0xE0
+ */
+#define ESAI_xCCR_xHCKD_SHIFT	23
+#define ESAI_xCCR_xHCKD_MASK	(1 << ESAI_xCCR_xHCKD_SHIFT)
+#define ESAI_xCCR_xHCKD		(1 << ESAI_xCCR_xHCKD_SHIFT)
+#define ESAI_xCCR_xFSD_SHIFT	22
+#define ESAI_xCCR_xFSD_MASK	(1 << ESAI_xCCR_xFSD_SHIFT)
+#define ESAI_xCCR_xFSD		(1 << ESAI_xCCR_xFSD_SHIFT)
+#define ESAI_xCCR_xCKD_SHIFT	21
+#define ESAI_xCCR_xCKD_MASK	(1 << ESAI_xCCR_xCKD_SHIFT)
+#define ESAI_xCCR_xCKD		(1 << ESAI_xCCR_xCKD_SHIFT)
+#define ESAI_xCCR_xHCKP_SHIFT	20
+#define ESAI_xCCR_xHCKP_MASK	(1 << ESAI_xCCR_xHCKP_SHIFT)
+#define ESAI_xCCR_xHCKP		(1 << ESAI_xCCR_xHCKP_SHIFT)
+#define ESAI_xCCR_xFSP_SHIFT	19
+#define ESAI_xCCR_xFSP_MASK	(1 << ESAI_xCCR_xFSP_SHIFT)
+#define ESAI_xCCR_xFSP		(1 << ESAI_xCCR_xFSP_SHIFT)
+#define ESAI_xCCR_xCKP_SHIFT	18
+#define ESAI_xCCR_xCKP_MASK	(1 << ESAI_xCCR_xCKP_SHIFT)
+#define ESAI_xCCR_xCKP		(1 << ESAI_xCCR_xCKP_SHIFT)
+#define ESAI_xCCR_xFP_SHIFT	14
+#define ESAI_xCCR_xFP_WIDTH	4
+#define ESAI_xCCR_xFP_MASK	(((1 << ESAI_xCCR_xFP_WIDTH) - 1) << ESAI_xCCR_xFP_SHIFT)
+#define ESAI_xCCR_xFP(v)	((((v) - 1) << ESAI_xCCR_xFP_SHIFT) & ESAI_xCCR_xFP_MASK)
+#define ESAI_xCCR_xDC_SHIFT     9
+#define ESAI_xCCR_xDC_WIDTH	4
+#define ESAI_xCCR_xDC_MASK	(((1 << ESAI_xCCR_xDC_WIDTH) - 1) << ESAI_xCCR_xDC_SHIFT)
+#define ESAI_xCCR_xDC(v)	((((v) - 1) << ESAI_xCCR_xDC_SHIFT) & ESAI_xCCR_xDC_MASK)
+#define ESAI_xCCR_xPSR_SHIFT	8
+#define ESAI_xCCR_xPSR_MASK	(1 << ESAI_xCCR_xPSR_SHIFT)
+#define ESAI_xCCR_xPSR_BYPASS	(1 << ESAI_xCCR_xPSR_SHIFT)
+#define ESAI_xCCR_xPSR_DIV8	(0 << ESAI_xCCR_xPSR_SHIFT)
+#define ESAI_xCCR_xPM_SHIFT     0
+#define ESAI_xCCR_xPM_WIDTH     8
+#define ESAI_xCCR_xPM_MASK	(((1 << ESAI_xCCR_xPM_WIDTH) - 1) << ESAI_xCCR_xPM_SHIFT)
+#define ESAI_xCCR_xPM(v)	((((v) - 1) << ESAI_xCCR_xPM_SHIFT) & ESAI_xCCR_xPM_MASK)
+
+/* Transmit Slot Mask Register A/B -- REG_ESAI_TSMA/B 0xE4 ~ 0xF0 */
+#define ESAI_xSMA_xS_SHIFT	0
+#define ESAI_xSMA_xS_WIDTH	16
+#define ESAI_xSMA_xS_MASK	(((1 << ESAI_xSMA_xS_WIDTH) - 1) << ESAI_xSMA_xS_SHIFT)
+#define ESAI_xSMA_xS(v)		((v) & ESAI_xSMA_xS_MASK)
+#define ESAI_xSMB_xS_SHIFT	0
+#define ESAI_xSMB_xS_WIDTH	16
+#define ESAI_xSMB_xS_MASK	(((1 << ESAI_xSMB_xS_WIDTH) - 1) << ESAI_xSMB_xS_SHIFT)
+#define ESAI_xSMB_xS(v)		(((v) >> ESAI_xSMA_xS_WIDTH) & ESAI_xSMA_xS_MASK)
+
+/* Port C Direction Register -- REG_ESAI_PRRC 0xF8 */
+#define ESAI_PRRC_PDC_SHIFT	0
+#define ESAI_PRRC_PDC_WIDTH	12
+#define ESAI_PRRC_PDC_MASK	(((1 << ESAI_PRRC_PDC_WIDTH) - 1) << ESAI_PRRC_PDC_SHIFT)
+#define ESAI_PRRC_PDC(v)	((v) & ESAI_PRRC_PDC_MASK)
+
+/* Port C Control Register -- REG_ESAI_PCRC 0xFC */
+#define ESAI_PCRC_PC_SHIFT	0
+#define ESAI_PCRC_PC_WIDTH	12
+#define ESAI_PCRC_PC_MASK	(((1 << ESAI_PCRC_PC_WIDTH) - 1) << ESAI_PCRC_PC_SHIFT)
+#define ESAI_PCRC_PC(v)		((v) & ESAI_PCRC_PC_MASK)
+
+#define ESAI_GPIO		0xfff
+
+/* ESAI clock source */
+#define ESAI_HCKT_FSYS		0
+#define ESAI_HCKT_EXTAL		1
+#define ESAI_HCKR_FSYS		2
+#define ESAI_HCKR_EXTAL		3
+
+/* ESAI clock divider */
+#define ESAI_TX_DIV_PSR		0
+#define ESAI_TX_DIV_PM		1
+#define ESAI_TX_DIV_FP		2
+#define ESAI_RX_DIV_PSR		3
+#define ESAI_RX_DIV_PM		4
+#define ESAI_RX_DIV_FP		5
+#endif /* _FSL_ESAI_DAI_H */

sound/soc/fsl/fsl_sai.c

···
 		reg_cr2 = FSL_SAI_RCR2;
 
 	val_cr2 = sai_readl(sai, sai->base + reg_cr2);
+	val_cr2 &= ~FSL_SAI_CR2_MSEL_MASK;
+
 	switch (clk_id) {
 	case FSL_SAI_CLK_BUS:
-		val_cr2 &= ~FSL_SAI_CR2_MSEL_MASK;
 		val_cr2 |= FSL_SAI_CR2_MSEL_BUS;
 		break;
 	case FSL_SAI_CLK_MAST1:
-		val_cr2 &= ~FSL_SAI_CR2_MSEL_MASK;
 		val_cr2 |= FSL_SAI_CR2_MSEL_MCLK1;
 		break;
 	case FSL_SAI_CLK_MAST2:
-		val_cr2 &= ~FSL_SAI_CR2_MSEL_MASK;
 		val_cr2 |= FSL_SAI_CR2_MSEL_MCLK2;
 		break;
 	case FSL_SAI_CLK_MAST3:
-		val_cr2 &= ~FSL_SAI_CR2_MSEL_MASK;
 		val_cr2 |= FSL_SAI_CR2_MSEL_MCLK3;
 		break;
 	default:
 		return -EINVAL;
 	}
+
 	sai_writel(sai, val_cr2, sai->base + reg_cr2);
 
 	return 0;

sound/soc/fsl/fsl_ssi.c

···
 #include <linux/module.h>
 #include <linux/interrupt.h>
 #include <linux/clk.h>
+#include <linux/debugfs.h>
 #include <linux/device.h>
 #include <linux/delay.h>
 #include <linux/slab.h>
···
 	 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_LE)
 #endif
 
-/* SIER bitflag of interrupts to enable */
-#define SIER_FLAGS (CCSR_SSI_SIER_TFRC_EN | CCSR_SSI_SIER_TDMAE | \
-		    CCSR_SSI_SIER_TIE | CCSR_SSI_SIER_TUE0_EN | \
-		    CCSR_SSI_SIER_TUE1_EN | CCSR_SSI_SIER_RFRC_EN | \
-		    CCSR_SSI_SIER_RDMAE | CCSR_SSI_SIER_RIE | \
-		    CCSR_SSI_SIER_ROE0_EN | CCSR_SSI_SIER_ROE1_EN)
+#define FSLSSI_SIER_DBG_RX_FLAGS (CCSR_SSI_SIER_RFF0_EN | \
+		CCSR_SSI_SIER_RLS_EN | CCSR_SSI_SIER_RFS_EN | \
+		CCSR_SSI_SIER_ROE0_EN | CCSR_SSI_SIER_RFRC_EN)
+#define FSLSSI_SIER_DBG_TX_FLAGS (CCSR_SSI_SIER_TFE0_EN | \
+		CCSR_SSI_SIER_TLS_EN | CCSR_SSI_SIER_TFS_EN | \
+		CCSR_SSI_SIER_TUE0_EN | CCSR_SSI_SIER_TFRC_EN)
+#define FSLSSI_SISR_MASK (FSLSSI_SIER_DBG_RX_FLAGS | FSLSSI_SIER_DBG_TX_FLAGS)
+
+
+enum fsl_ssi_type {
+	FSL_SSI_MCP8610,
+	FSL_SSI_MX21,
+	FSL_SSI_MX35,
+	FSL_SSI_MX51,
+};
+
+struct fsl_ssi_reg_val {
+	u32 sier;
+	u32 srcr;
+	u32 stcr;
+	u32 scr;
+};
+
+struct fsl_ssi_rxtx_reg_val {
+	struct fsl_ssi_reg_val rx;
+	struct fsl_ssi_reg_val tx;
+};
 
 /**
  * fsl_ssi_private: per-SSI private data
···
 	unsigned int irq;
 	unsigned int fifo_depth;
 	struct snd_soc_dai_driver cpu_dai_drv;
-	struct device_attribute dev_attr;
 	struct platform_device *pdev;
 
+	enum fsl_ssi_type hw_type;
 	bool new_binding;
 	bool ssi_on_imx;
 	bool imx_ac97;
 	bool use_dma;
 	bool baudclk_locked;
+	bool irq_stats;
+	bool offline_config;
 	u8 i2s_mode;
 	spinlock_t baudclk_lock;
 	struct clk *baudclk;
···
 	struct imx_dma_data filter_data_tx;
 	struct imx_dma_data filter_data_rx;
 	struct imx_pcm_fiq_params fiq_params;
+	/* Register values for rx/tx configuration */
+	struct fsl_ssi_rxtx_reg_val rxtx_reg_val;
 
 	struct {
 		unsigned int rfrc;
···
 		unsigned int tfe1;
 		unsigned int tfe0;
 	} stats;
+	struct dentry *dbg_dir;
+	struct dentry *dbg_stats;
 
 	char name[1];
 };
+
+static const struct of_device_id fsl_ssi_ids[] = {
+	{ .compatible = "fsl,mpc8610-ssi", .data = (void *) FSL_SSI_MCP8610},
+	{ .compatible = "fsl,imx51-ssi", .data = (void *) FSL_SSI_MX51},
+	{ .compatible = "fsl,imx35-ssi", .data = (void *) FSL_SSI_MX35},
+	{ .compatible = "fsl,imx21-ssi", .data = (void *) FSL_SSI_MX21},
+	{}
+};
+MODULE_DEVICE_TABLE(of, fsl_ssi_ids);
 
 /**
  * fsl_ssi_isr: SSI interrupt handler
···
 	struct ccsr_ssi __iomem *ssi = ssi_private->ssi;
 	irqreturn_t ret = IRQ_NONE;
 	__be32 sisr;
-	__be32 sisr2 = 0;
+	__be32 sisr2;
+	__be32 sisr_write_mask = 0;
+
+	switch (ssi_private->hw_type) {
+	case FSL_SSI_MX21:
+		sisr_write_mask = 0;
+		break;
+
+	case FSL_SSI_MCP8610:
+	case FSL_SSI_MX35:
+		sisr_write_mask = CCSR_SSI_SISR_RFRC | CCSR_SSI_SISR_TFRC |
+			CCSR_SSI_SISR_ROE0 | CCSR_SSI_SISR_ROE1 |
+			CCSR_SSI_SISR_TUE0 | CCSR_SSI_SISR_TUE1;
+		break;
+
+	case FSL_SSI_MX51:
+		sisr_write_mask = CCSR_SSI_SISR_ROE0 | CCSR_SSI_SISR_ROE1 |
+			CCSR_SSI_SISR_TUE0 | CCSR_SSI_SISR_TUE1;
+		break;
+	}
 
 	/* We got an interrupt, so read the status register to see what we
 	   were interrupted for.  We mask it with the Interrupt Enable register
 	   so that we only check for events that we're interested in.
 	 */
-	sisr = read_ssi(&ssi->sisr) & SIER_FLAGS;
+	sisr = read_ssi(&ssi->sisr) & FSLSSI_SISR_MASK;
 
 	if (sisr & CCSR_SSI_SISR_RFRC) {
 		ssi_private->stats.rfrc++;
-		sisr2 |= CCSR_SSI_SISR_RFRC;
 		ret = IRQ_HANDLED;
 	}
 
 	if (sisr & CCSR_SSI_SISR_TFRC) {
 		ssi_private->stats.tfrc++;
-		sisr2 |= CCSR_SSI_SISR_TFRC;
 		ret = IRQ_HANDLED;
 	}
 
···
 
 	if (sisr & CCSR_SSI_SISR_ROE1) {
 		ssi_private->stats.roe1++;
-		sisr2 |= CCSR_SSI_SISR_ROE1;
 		ret = IRQ_HANDLED;
 	}
 
 	if (sisr & CCSR_SSI_SISR_ROE0) {
 		ssi_private->stats.roe0++;
-		sisr2 |= CCSR_SSI_SISR_ROE0;
 		ret = IRQ_HANDLED;
 	}
 
 	if (sisr & CCSR_SSI_SISR_TUE1) {
 		ssi_private->stats.tue1++;
-		sisr2 |= CCSR_SSI_SISR_TUE1;
 		ret = IRQ_HANDLED;
 	}
 
 	if (sisr & CCSR_SSI_SISR_TUE0) {
 		ssi_private->stats.tue0++;
-		sisr2 |= CCSR_SSI_SISR_TUE0;
 		ret = IRQ_HANDLED;
 	}
 
···
 		ret = IRQ_HANDLED;
 	}
 
+	sisr2 = sisr & sisr_write_mask;
 	/* Clear the bits that we set */
 	if (sisr2)
 		write_ssi(sisr2, &ssi->sisr);
 
 	return ret;
+}
+
+#if IS_ENABLED(CONFIG_DEBUG_FS)
+/* Show the statistics of a flag only if its interrupt is enabled.  The
+ * compiler will optimze this code to a no-op if the interrupt is not
+ * enabled.
+ */
+#define SIER_SHOW(flag, name) \
+	do { \
+		if (FSLSSI_SISR_MASK & CCSR_SSI_SIER_##flag) \
+			seq_printf(s, #name "=%u\n", ssi_private->stats.name); \
+	} while (0)
+
+
+/**
+ * fsl_sysfs_ssi_show: display SSI statistics
+ *
+ * Display the statistics for the current SSI device.  To avoid confusion,
+ * we only show those counts that are enabled.
+ */
+static int fsl_ssi_stats_show(struct seq_file *s, void *unused)
+{
+	struct fsl_ssi_private *ssi_private = s->private;
+
+	SIER_SHOW(RFRC_EN, rfrc);
+	SIER_SHOW(TFRC_EN, tfrc);
+	SIER_SHOW(CMDAU_EN, cmdau);
+	SIER_SHOW(CMDDU_EN, cmddu);
+	SIER_SHOW(RXT_EN, rxt);
+	SIER_SHOW(RDR1_EN, rdr1);
+	SIER_SHOW(RDR0_EN, rdr0);
+	SIER_SHOW(TDE1_EN, tde1);
+	SIER_SHOW(TDE0_EN, tde0);
+	SIER_SHOW(ROE1_EN, roe1);
+	SIER_SHOW(ROE0_EN, roe0);
+	SIER_SHOW(TUE1_EN, tue1);
+	SIER_SHOW(TUE0_EN, tue0);
+	SIER_SHOW(TFS_EN, tfs);
+	SIER_SHOW(RFS_EN, rfs);
+	SIER_SHOW(TLS_EN, tls);
+	SIER_SHOW(RLS_EN, rls);
+	SIER_SHOW(RFF1_EN, rff1);
+	SIER_SHOW(RFF0_EN, rff0);
+	SIER_SHOW(TFE1_EN, tfe1);
+	SIER_SHOW(TFE0_EN, tfe0);
+
+	return 0;
+}
+
+static int fsl_ssi_stats_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, fsl_ssi_stats_show, inode->i_private);
+}
+
+static const struct file_operations fsl_ssi_stats_ops = {
+	.open = fsl_ssi_stats_open,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
+
+static int fsl_ssi_debugfs_create(struct fsl_ssi_private *ssi_private,
+		struct device *dev)
+{
+	ssi_private->dbg_dir = debugfs_create_dir(dev_name(dev), NULL);
+	if (!ssi_private->dbg_dir)
+		return -ENOMEM;
+
+	ssi_private->dbg_stats = debugfs_create_file("stats", S_IRUGO,
+			ssi_private->dbg_dir, ssi_private, &fsl_ssi_stats_ops);
+	if (!ssi_private->dbg_stats) {
+		debugfs_remove(ssi_private->dbg_dir);
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
+static void fsl_ssi_debugfs_remove(struct fsl_ssi_private *ssi_private)
+{
+	debugfs_remove(ssi_private->dbg_stats);
+	debugfs_remove(ssi_private->dbg_dir);
+}
+
+#else
+
+static int fsl_ssi_debugfs_create(struct fsl_ssi_private *ssi_private,
+		struct device *dev)
+{
+	return 0;
+}
+
+static void fsl_ssi_debugfs_remove(struct fsl_ssi_private *ssi_private)
+{
+}
+
+#endif /* IS_ENABLED(CONFIG_DEBUG_FS) */
+
+/*
+ * Enable/Disable all rx/tx config flags at once.
+ */
+static void fsl_ssi_rxtx_config(struct fsl_ssi_private *ssi_private,
+		bool enable)
+{
+	struct ccsr_ssi __iomem *ssi = ssi_private->ssi;
+	struct fsl_ssi_rxtx_reg_val *vals = &ssi_private->rxtx_reg_val;
+
+	if (enable) {
+		write_ssi_mask(&ssi->sier, 0, vals->rx.sier | vals->tx.sier);
+		write_ssi_mask(&ssi->srcr, 0, vals->rx.srcr | vals->tx.srcr);
+		write_ssi_mask(&ssi->stcr, 0, vals->rx.stcr | vals->tx.stcr);
+	} else {
+		write_ssi_mask(&ssi->srcr, vals->rx.srcr | vals->tx.srcr, 0);
+		write_ssi_mask(&ssi->stcr, vals->rx.stcr | vals->tx.stcr, 0);
+		write_ssi_mask(&ssi->sier, vals->rx.sier | vals->tx.sier, 0);
+	}
+}
+
+/*
+ * Enable/Disable a ssi configuration. You have to pass either
+ * ssi_private->rxtx_reg_val.rx or tx as vals parameter.
+ */
+static void fsl_ssi_config(struct fsl_ssi_private *ssi_private, bool enable,
+		struct fsl_ssi_reg_val *vals)
+{
+	struct ccsr_ssi __iomem *ssi = ssi_private->ssi;
+	struct fsl_ssi_reg_val *avals;
+	u32 scr_val = read_ssi(&ssi->scr);
+	int nr_active_streams = !!(scr_val & CCSR_SSI_SCR_TE) +
+				!!(scr_val & CCSR_SSI_SCR_RE);
+
+	/* Find the other direction values rx or tx which we do not want to
+	 * modify */
+	if (&ssi_private->rxtx_reg_val.rx == vals)
+		avals = &ssi_private->rxtx_reg_val.tx;
+	else
+		avals = &ssi_private->rxtx_reg_val.rx;
+
+	/* If vals should be disabled, start with disabling the unit */
+	if (!enable) {
+		u32 scr = vals->scr & (vals->scr ^ avals->scr);
+		write_ssi_mask(&ssi->scr, scr, 0);
+	}
+
+	/*
+	 * We are running on a SoC which does not support online SSI
+	 * reconfiguration, so we have to enable all necessary flags at once
+	 * even if we do not use them later (capture and playback configuration)
+	 */
+	if (ssi_private->offline_config) {
+		if ((enable && !nr_active_streams) ||
+				(!enable && nr_active_streams == 1))
+			fsl_ssi_rxtx_config(ssi_private, enable);
+
+		goto config_done;
+	}
+
+	/*
+	 * Configure single direction units while the SSI unit is running
+	 * (online configuration)
+	 */
+	if (enable) {
+		write_ssi_mask(&ssi->sier, 0, vals->sier);
+		write_ssi_mask(&ssi->srcr, 0, vals->srcr);
+		write_ssi_mask(&ssi->stcr, 0, vals->stcr);
+	} else {
+		u32 sier;
+		u32 srcr;
+		u32 stcr;
+
+		/*
+		 * Disabling the necessary flags for one of rx/tx while the
+		 * other stream is active is a little bit more difficult. We
+		 * have to disable only those flags that differ between both
+		 * streams (rx XOR tx) and that are set in the stream that is
+		 * disabled now. Otherwise we could alter flags of the other
+		 * stream
+		 */
+
+		/* These assignments are simply vals without bits set in avals*/
+		sier = vals->sier & (vals->sier ^ avals->sier);
+		srcr = vals->srcr & (vals->srcr ^ avals->srcr);
+		stcr = vals->stcr & (vals->stcr ^ avals->stcr);
+
+		write_ssi_mask(&ssi->srcr, srcr, 0);
+		write_ssi_mask(&ssi->stcr, stcr, 0);
+		write_ssi_mask(&ssi->sier, sier, 0);
+	}
+
+config_done:
+	/* Enabling of subunits is done after configuration */
+	if (enable)
+		write_ssi_mask(&ssi->scr, 0, vals->scr);
+}
+
+
+static void fsl_ssi_rx_config(struct fsl_ssi_private *ssi_private, bool enable)
+{
+	fsl_ssi_config(ssi_private, enable, &ssi_private->rxtx_reg_val.rx);
+}
+
+static void fsl_ssi_tx_config(struct fsl_ssi_private *ssi_private, bool enable)
+{
+	fsl_ssi_config(ssi_private, enable, &ssi_private->rxtx_reg_val.tx);
+}
+
+/*
+ * Setup rx/tx register values used to enable/disable the streams. These will
+ * be used later in fsl_ssi_config to setup the streams without the need to
+ * check for all different SSI modes.
+ */
+static void fsl_ssi_setup_reg_vals(struct fsl_ssi_private *ssi_private)
+{
+	struct fsl_ssi_rxtx_reg_val *reg = &ssi_private->rxtx_reg_val;
+
+	reg->rx.sier = CCSR_SSI_SIER_RFF0_EN;
+	reg->rx.srcr = CCSR_SSI_SRCR_RFEN0;
+	reg->rx.scr = 0;
+	reg->tx.sier = CCSR_SSI_SIER_TFE0_EN;
+	reg->tx.stcr = CCSR_SSI_STCR_TFEN0;
+	reg->tx.scr = 0;
+
+	if (!ssi_private->imx_ac97) {
+		reg->rx.scr = CCSR_SSI_SCR_SSIEN | CCSR_SSI_SCR_RE;
+		reg->rx.sier |= CCSR_SSI_SIER_RFF0_EN;
+		reg->tx.scr = CCSR_SSI_SCR_SSIEN | CCSR_SSI_SCR_TE;
+		reg->tx.sier |= CCSR_SSI_SIER_TFE0_EN;
+	}
+
+	if (ssi_private->use_dma) {
+		reg->rx.sier |= CCSR_SSI_SIER_RDMAE;
+		reg->tx.sier |= CCSR_SSI_SIER_TDMAE;
+	} else {
+		reg->rx.sier |= CCSR_SSI_SIER_RIE;
+		reg->tx.sier |= CCSR_SSI_SIER_TIE;
+	}
+
+	reg->rx.sier |= FSLSSI_SIER_DBG_RX_FLAGS;
+	reg->tx.sier |= FSLSSI_SIER_DBG_TX_FLAGS;
 }
 
 static void fsl_ssi_setup_ac97(struct fsl_ssi_private *ssi_private)
···
 	u8 wm;
 	int synchronous = ssi_private->cpu_dai_drv.symmetric_rates;
 
+	fsl_ssi_setup_reg_vals(ssi_private);
+
 	if (ssi_private->imx_ac97)
 		ssi_private->i2s_mode = CCSR_SSI_SCR_I2S_MODE_NORMAL | CCSR_SSI_SCR_NET;
 	else
···
 		ssi_private->i2s_mode |
 		(synchronous ? CCSR_SSI_SCR_SYN : 0));
 
-	write_ssi(CCSR_SSI_STCR_TXBIT0 | CCSR_SSI_STCR_TFEN0 |
-		 CCSR_SSI_STCR_TFSI | CCSR_SSI_STCR_TEFS |
-		 CCSR_SSI_STCR_TSCKP, &ssi->stcr);
+	write_ssi(CCSR_SSI_STCR_TXBIT0 | CCSR_SSI_STCR_TFSI |
+			CCSR_SSI_STCR_TEFS | CCSR_SSI_STCR_TSCKP, &ssi->stcr);
 
-	write_ssi(CCSR_SSI_SRCR_RXBIT0 | CCSR_SSI_SRCR_RFEN0 |
-		 CCSR_SSI_SRCR_RFSI | CCSR_SSI_SRCR_REFS |
-		 CCSR_SSI_SRCR_RSCKP, &ssi->srcr);
+	write_ssi(CCSR_SSI_SRCR_RXBIT0 | CCSR_SSI_SRCR_RFSI |
+			CCSR_SSI_SRCR_REFS | CCSR_SSI_SRCR_RSCKP, &ssi->srcr);
+
 	/*
 	 * The DC and PM bits are only used if the SSI is the clock master.
 	 */
···
 	 */
 	if (ssi_private->imx_ac97)
 		fsl_ssi_setup_ac97(ssi_private);
+
+	/*
+	 * Set a default slot number so that there is no need for those common
+	 * cases like I2S mode to call the extra set_tdm_slot() any more.
+	 */
+	if (!ssi_private->imx_ac97) {
+		write_ssi_mask(&ssi->stccr, CCSR_SSI_SxCCR_DC_MASK,
+				CCSR_SSI_SxCCR_DC(2));
+		write_ssi_mask(&ssi->srccr, CCSR_SSI_SxCCR_DC_MASK,
+				CCSR_SSI_SxCCR_DC(2));
+	}
 
 	return 0;
 }
···
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct fsl_ssi_private *ssi_private = snd_soc_dai_get_drvdata(rtd->cpu_dai);
 	struct ccsr_ssi __iomem *ssi = ssi_private->ssi;
-	unsigned int sier_bits;
 	unsigned long flags;
-
-	/*
-	 *  Enable only the interrupts and DMA requests
-	 *  that are needed for the channel. As the fiq
-	 *  is polling for this bits, we have to ensure
-	 *  that this are aligned with the preallocated
-	 *  buffers
-	 */
-
-	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-		if (ssi_private->use_dma)
-			sier_bits = SIER_FLAGS;
-		else
-			sier_bits = CCSR_SSI_SIER_TIE | CCSR_SSI_SIER_TFE0_EN;
-	} else {
-		if (ssi_private->use_dma)
-			sier_bits = SIER_FLAGS;
-		else
-			sier_bits = CCSR_SSI_SIER_RIE | CCSR_SSI_SIER_RFF0_EN;
-	}
 
 	switch (cmd) {
 	case SNDRV_PCM_TRIGGER_START:
 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-			write_ssi_mask(&ssi->scr, 0,
-				CCSR_SSI_SCR_SSIEN | CCSR_SSI_SCR_TE);
+			fsl_ssi_tx_config(ssi_private, true);
 		else
-			write_ssi_mask(&ssi->scr, 0,
-				CCSR_SSI_SCR_SSIEN | CCSR_SSI_SCR_RE);
+			fsl_ssi_rx_config(ssi_private, true);
 		break;
 
 	case SNDRV_PCM_TRIGGER_STOP:
 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-			write_ssi_mask(&ssi->scr, CCSR_SSI_SCR_TE, 0);
+			fsl_ssi_tx_config(ssi_private, false);
 		else
-			write_ssi_mask(&ssi->scr, CCSR_SSI_SCR_RE, 0);
+			fsl_ssi_rx_config(ssi_private, false);
 
 		if (!ssi_private->imx_ac97 && (read_ssi(&ssi->scr) &
 					(CCSR_SSI_SCR_TE | CCSR_SSI_SCR_RE)) == 0) {
-			write_ssi_mask(&ssi->scr, CCSR_SSI_SCR_SSIEN, 0);
 			spin_lock_irqsave(&ssi_private->baudclk_lock, flags);
 			ssi_private->baudclk_locked = false;
 			spin_unlock_irqrestore(&ssi_private->baudclk_lock, flags);
···
 		return -EINVAL;
 	}
 
-	write_ssi(sier_bits, &ssi->sier);
+	if (ssi_private->imx_ac97) {
+		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+			write_ssi(CCSR_SSI_SOR_TX_CLR, &ssi->sor);
+		else
+			write_ssi(CCSR_SSI_SOR_RX_CLR, &ssi->sor);
+	}
 
 	return 0;
 }
···
 	.name		= "fsl-ssi",
 };
 
-/**
- * fsl_ssi_ac97_trigger: start and stop the AC97 receive/transmit.
- *
- * This function is called by ALSA to start, stop, pause, and resume the
- * transfer of data.
- */
-static int fsl_ssi_ac97_trigger(struct snd_pcm_substream *substream, int cmd,
-			   struct snd_soc_dai *dai)
-{
-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
-	struct fsl_ssi_private *ssi_private = snd_soc_dai_get_drvdata(
-			rtd->cpu_dai);
-	struct ccsr_ssi __iomem *ssi = ssi_private->ssi;
-
-	switch (cmd) {
-	case SNDRV_PCM_TRIGGER_START:
-	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
-		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-			write_ssi_mask(&ssi->sier, 0, CCSR_SSI_SIER_TIE |
-					CCSR_SSI_SIER_TFE0_EN);
-		else
-			write_ssi_mask(&ssi->sier, 0, CCSR_SSI_SIER_RIE |
-					CCSR_SSI_SIER_RFF0_EN);
-		break;
-
-	case SNDRV_PCM_TRIGGER_STOP:
-	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
-		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-			write_ssi_mask(&ssi->sier, CCSR_SSI_SIER_TIE |
-					CCSR_SSI_SIER_TFE0_EN, 0);
-		else
-			write_ssi_mask(&ssi->sier, CCSR_SSI_SIER_RIE |
-					CCSR_SSI_SIER_RFF0_EN, 0);
-		break;
-
-	default:
-		return -EINVAL;
-	}
-
-	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-		write_ssi(CCSR_SSI_SOR_TX_CLR, &ssi->sor);
-	else
-		write_ssi(CCSR_SSI_SOR_RX_CLR, &ssi->sor);
-
-	return 0;
-}
-
-static const struct snd_soc_dai_ops fsl_ssi_ac97_dai_ops = {
-	.startup	= fsl_ssi_startup,
-	.trigger	= fsl_ssi_ac97_trigger,
-};
-
 static struct snd_soc_dai_driver fsl_ssi_ac97_dai = {
 	.ac97_control = 1,
 	.playback = {
···
 		.rates = SNDRV_PCM_RATE_48000,
 		.formats = SNDRV_PCM_FMTBIT_S16_LE,
 	},
-	.ops = &fsl_ssi_ac97_dai_ops,
+	.ops = &fsl_ssi_dai_ops,
 };
 
 
···
 	.write		= fsl_ssi_ac97_write,
 };
 
-/* Show the statistics of a flag only if its interrupt is enabled.  The
- * compiler will optimze this code to a no-op if the interrupt is not
- * enabled.
- */
-#define SIER_SHOW(flag, name) \
-	do { \
-		if (SIER_FLAGS & CCSR_SSI_SIER_##flag) \
-			length += sprintf(buf + length, #name "=%u\n", \
-				ssi_private->stats.name); \
-	} while (0)
-
-
-/**
- * fsl_sysfs_ssi_show: display SSI statistics
- *
- * Display the statistics for the current SSI device.  To avoid confusion,
- * we only show those counts that are enabled.
- */
-static ssize_t fsl_sysfs_ssi_show(struct device *dev,
-	struct device_attribute *attr, char *buf)
-{
-	struct fsl_ssi_private *ssi_private =
-		container_of(attr, struct fsl_ssi_private, dev_attr);
-	ssize_t length = 0;
-
-	SIER_SHOW(RFRC_EN, rfrc);
-	SIER_SHOW(TFRC_EN, tfrc);
-	SIER_SHOW(CMDAU_EN, cmdau);
-	SIER_SHOW(CMDDU_EN, cmddu);
-	SIER_SHOW(RXT_EN, rxt);
-	SIER_SHOW(RDR1_EN, rdr1);
-	SIER_SHOW(RDR0_EN, rdr0);
-	SIER_SHOW(TDE1_EN, tde1);
-	SIER_SHOW(TDE0_EN, tde0);
-	SIER_SHOW(ROE1_EN, roe1);
-	SIER_SHOW(ROE0_EN, roe0);
-	SIER_SHOW(TUE1_EN, tue1);
-	SIER_SHOW(TUE0_EN, tue0);
-	SIER_SHOW(TFS_EN, tfs);
-	SIER_SHOW(RFS_EN, rfs);
-	SIER_SHOW(TLS_EN, tls);
-	SIER_SHOW(RLS_EN, rls);
-	SIER_SHOW(RFF1_EN, rff1);
-	SIER_SHOW(RFF0_EN, rff0);
-	SIER_SHOW(TFE1_EN, tfe1);
-	SIER_SHOW(TFE0_EN, tfe0);
-
-	return length;
-}
-
 /**
  * Make every character in a string lower-case
  */
···
 	int ret = 0;
 	struct device_attribute *dev_attr = NULL;
 	struct device_node *np = pdev->dev.of_node;
+	const struct of_device_id *of_id;
+	enum fsl_ssi_type hw_type;
 	const char *p, *sprop;
 	const uint32_t *iprop;
 	struct resource res;
···
 	 */
 	if (!of_device_is_available(np))
 		return -ENODEV;
+
+	of_id = of_match_device(fsl_ssi_ids, &pdev->dev);
+	if (!of_id)
+		return -EINVAL;
+	hw_type = (enum fsl_ssi_type) of_id->data;
 
 	/* We only support the SSI in "I2S Slave" mode */
 	sprop = of_get_property(np, "fsl,mode", NULL);
···
 
 	ssi_private->use_dma = !of_property_read_bool(np,
 			"fsl,fiq-stream-filter");
+	ssi_private->hw_type = hw_type;
 
 	if (ac97) {
 		memcpy(&ssi_private->cpu_dai_drv, &fsl_ssi_ac97_dai,
···
 	ssi_private->baudclk_locked = false;
 	spin_lock_init(&ssi_private->baudclk_lock);
 
-	if (of_device_is_compatible(pdev->dev.of_node, "fsl,imx21-ssi")) {
+	/*
+	 * imx51 and later SoCs have a slightly different IP that allows the
+	 * SSI configuration while the SSI unit is running.
+	 *
+	 * More important, it is necessary on those SoCs to configure the
+	 * sperate TX/RX DMA bits just before starting the stream
+	 * (fsl_ssi_trigger). The SDMA unit has to be configured before fsl_ssi
+	 * sends any DMA requests to the SDMA unit, otherwise it is not defined
+	 * how the SDMA unit handles the DMA request.
+	 *
+	 * SDMA units are present on devices starting at imx35 but the imx35
+	 * reference manual states that the DMA bits should not be changed
+	 * while the SSI unit is running (SSIEN). So we support the necessary
+	 * online configuration of fsl-ssi starting at imx51.
+	 */
+	switch (hw_type) {
+	case FSL_SSI_MCP8610:
+	case FSL_SSI_MX21:
+	case FSL_SSI_MX35:
+		ssi_private->offline_config = true;
+		break;
+	case FSL_SSI_MX51:
+		ssi_private->offline_config = false;
+		break;
+	}
+
+	if (hw_type == FSL_SSI_MX21 || hw_type == FSL_SSI_MX51 ||
+			hw_type == FSL_SSI_MX35) {
 		u32 dma_events[2];
 		ssi_private->ssi_on_imx = true;
 
···
 		 */
 		ssi_private->baudclk = devm_clk_get(&pdev->dev, "baud");
 		if (IS_ERR(ssi_private->baudclk))
-			dev_warn(&pdev->dev, "could not get baud clock: %d\n", ret);
+			dev_warn(&pdev->dev, "could not get baud clock: %ld\n",
+				 PTR_ERR(ssi_private->baudclk));
 		else
 			clk_prepare_enable(ssi_private->baudclk);
 
···
 			dma_events[0], shared ? IMX_DMATYPE_SSI_SP : IMX_DMATYPE_SSI);
 		imx_pcm_dma_params_init_data(&ssi_private->filter_data_rx,
 			dma_events[1], shared ? IMX_DMATYPE_SSI_SP : IMX_DMATYPE_SSI);
-	} else if (ssi_private->use_dma) {
+	}
+
+	/*
+	 * Enable interrupts only for MCP8610 and MX51. The other MXs have
+	 * different writeable interrupt status registers.
+	 */
+	if (ssi_private->use_dma) {
 		/* The 'name' should not have any slashes in it. */
 		ret = devm_request_irq(&pdev->dev, ssi_private->irq,
 					fsl_ssi_isr, 0, ssi_private->name,
 					ssi_private);
+		ssi_private->irq_stats = true;
 		if (ret < 0) {
 			dev_err(&pdev->dev, "could not claim irq %u\n",
 					ssi_private->irq);
-			goto error_irqmap;
+			goto error_clk;
 		}
-	}
-
-	/* Initialize the the device_attribute structure */
-	dev_attr = &ssi_private->dev_attr;
-	sysfs_attr_init(&dev_attr->attr);
-	dev_attr->attr.name = "statistics";
-	dev_attr->attr.mode = S_IRUGO;
-	dev_attr->show = fsl_sysfs_ssi_show;
-
-	ret = device_create_file(&pdev->dev, dev_attr);
-	if (ret) {
-		dev_err(&pdev->dev, "could not create sysfs %s file\n",
-			ssi_private->dev_attr.attr.name);
-		goto error_clk;
 	}
 
 	/* Register with ASoC */
···
 		dev_err(&pdev->dev, "failed to register DAI: %d\n", ret);
 		goto error_dev;
 	}
+
+	ret = fsl_ssi_debugfs_create(ssi_private, &pdev->dev);
+	if (ret)
+		goto error_dbgfs;
 
 	if (ssi_private->ssi_on_imx) {
 		if (!ssi_private->use_dma) {
···
 
 			ret = imx_pcm_fiq_init(pdev, &ssi_private->fiq_params);
 			if (ret)
-				goto error_dev;
+				goto error_pcm;
 		} else {
 			ret = imx_pcm_dma_init(pdev);
 			if (ret)
-				goto error_dev;
+				goto error_pcm;
 		}
 	}
 
···
 	return 0;
 
 error_dai:
+	if (ssi_private->ssi_on_imx && !ssi_private->use_dma)
+		imx_pcm_fiq_exit(pdev);
+
+error_pcm:
+	fsl_ssi_debugfs_remove(ssi_private);
+
+error_dbgfs:
 	snd_soc_unregister_component(&pdev->dev);
 
 error_dev:
···
 	}
 
 error_irqmap:
-	irq_dispose_mapping(ssi_private->irq);
+	if (ssi_private->irq_stats)
+		irq_dispose_mapping(ssi_private->irq);
 
 	return ret;
 }
···
 {
 	struct fsl_ssi_private *ssi_private = dev_get_drvdata(&pdev->dev);
 
+	fsl_ssi_debugfs_remove(ssi_private);
+
 	if (!ssi_private->new_binding)
 		platform_device_unregister(ssi_private->pdev);
 	snd_soc_unregister_component(&pdev->dev);
-	device_remove_file(&pdev->dev, &ssi_private->dev_attr);
 	if (ssi_private->ssi_on_imx) {
 		if (!IS_ERR(ssi_private->baudclk))
 			clk_disable_unprepare(ssi_private->baudclk);
 		clk_disable_unprepare(ssi_private->clk);
 	}
-	irq_dispose_mapping(ssi_private->irq);
+	if (ssi_private->irq_stats)
+		irq_dispose_mapping(ssi_private->irq);
 
 	return 0;
 }
-
-static const struct of_device_id fsl_ssi_ids[] = {
-	{ .compatible = "fsl,mpc8610-ssi", },
-	{ .compatible = "fsl,imx21-ssi", },
-	{}
-};
-MODULE_DEVICE_TABLE(of, fsl_ssi_ids);
 
 static struct platform_driver fsl_ssi_driver = {
 	.driver = {

sound/soc/fsl/imx-pcm-dma.c

···
 		SNDRV_PCM_INFO_PAUSE |
 		SNDRV_PCM_INFO_RESUME,
 	.formats = SNDRV_PCM_FMTBIT_S16_LE,
-	.rate_min = 8000,
-	.channels_min = 2,
-	.channels_max = 2,
 	.buffer_bytes_max = IMX_SSI_DMABUF_SIZE,
 	.period_bytes_min = 128,
 	.period_bytes_max = 65535, /* Limited by SDMA engine */

sound/soc/fsl/imx-pcm-fiq.c

···
 		SNDRV_PCM_INFO_PAUSE |
 		SNDRV_PCM_INFO_RESUME,
 	.formats = SNDRV_PCM_FMTBIT_S16_LE,
-	.rate_min = 8000,
-	.channels_min = 2,
-	.channels_max = 2,
 	.buffer_bytes_max = IMX_SSI_DMABUF_SIZE,
 	.period_bytes_min = 128,
 	.period_bytes_max = 16 * 1024,

sound/soc/fsl/mpc5200_dma.c

···
 		SNDRV_PCM_INFO_BATCH,
 	.formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_BE |
 		SNDRV_PCM_FMTBIT_S24_BE | SNDRV_PCM_FMTBIT_S32_BE,
-	.rate_min = 8000,
-	.rate_max = 48000,
-	.channels_min = 1,
-	.channels_max = 2,
 	.period_bytes_max	= 1024 * 1024,
 	.period_bytes_min	= 32,
 	.periods_min		= 2,

sound/soc/generic/simple-card.c

···
  * published by the Free Software Foundation.
  */
 #include <linux/clk.h>
+#include <linux/module.h>
 #include <linux/of.h>
 #include <linux/platform_device.h>
-#include <linux/module.h>
+#include <linux/string.h>
 #include <sound/simple_card.h>
-
-#define asoc_simple_get_card_info(p) \
-	container_of(p->dai_link, struct asoc_simple_card_info, snd_link)
 
 static int __asoc_simple_card_dai_init(struct snd_soc_dai *dai,
 				       struct asoc_simple_dai *set,
···
 
 static int asoc_simple_card_dai_init(struct snd_soc_pcm_runtime *rtd)
 {
-	struct asoc_simple_card_info *info = asoc_simple_get_card_info(rtd);
+	struct asoc_simple_card_info *info =
+				snd_soc_card_get_drvdata(rtd->card);
 	struct snd_soc_dai *codec = rtd->codec_dai;
 	struct snd_soc_dai *cpu = rtd->cpu_dai;
 	unsigned int daifmt = info->daifmt;
···
 				     &dai->sysclk);
 	} else {
 		clk = of_clk_get(*node, 0);
-		if (IS_ERR(clk)) {
-			ret = PTR_ERR(clk);
-			goto parse_error;
-		}
-
-		dai->sysclk = clk_get_rate(clk);
+		if (!IS_ERR(clk))
+			dai->sysclk = clk_get_rate(clk);
 	}
 
 	ret = 0;
···
 		(SND_SOC_DAIFMT_FORMAT_MASK | SND_SOC_DAIFMT_INV_MASK);
 
 	/* DAPM routes */
-	ret = snd_soc_of_parse_audio_routing(&info->snd_card,
-					"simple-audio-routing");
-	if (ret)
-		return ret;
+	if (of_property_read_bool(node, "simple-audio-card,routing")) {
+		ret = snd_soc_of_parse_audio_routing(&info->snd_card,
+					"simple-audio-card,routing");
+		if (ret)
+			return ret;
+	}
 
 	/* CPU sub-node */
 	ret = -EINVAL;
···
 	struct device_node *np = pdev->dev.of_node;
 	struct device_node *of_cpu, *of_codec, *of_platform;
 	struct device *dev = &pdev->dev;
+	int ret;
 
 	cinfo		= NULL;
 	of_cpu		= NULL;
 	of_codec	= NULL;
 	of_platform	= NULL;
+
+	cinfo = devm_kzalloc(dev, sizeof(*cinfo), GFP_KERNEL);
+	if (!cinfo)
+		return -ENOMEM;
+
 	if (np && of_device_is_available(np)) {
-		cinfo = devm_kzalloc(dev, sizeof(*cinfo), GFP_KERNEL);
-		if (cinfo) {
-			int ret;
-			cinfo->snd_card.dev = &pdev->dev;
-			ret = asoc_simple_card_parse_of(np, cinfo, dev,
-							&of_cpu,
-							&of_codec,
-							&of_platform);
-			if (ret < 0) {
-				if (ret != -EPROBE_DEFER)
-					dev_err(dev, "parse error %d\n", ret);
-				return ret;
-			}
+		cinfo->snd_card.dev = dev;
+
+		ret = asoc_simple_card_parse_of(np, cinfo, dev,
+						&of_cpu,
+						&of_codec,
+						&of_platform);
+		if (ret < 0) {
+			if (ret != -EPROBE_DEFER)
+				dev_err(dev, "parse error %d\n", ret);
+			return ret;
 		}
 	} else {
-		cinfo->snd_card.dev = &pdev->dev;
-		cinfo = pdev->dev.platform_data;
-	}
+		if (!dev->platform_data) {
+			dev_err(dev, "no info for asoc-simple-card\n");
+			return -EINVAL;
+		}
 
-	if (!cinfo) {
-		dev_err(dev, "no info for asoc-simple-card\n");
-		return -EINVAL;
+		memcpy(cinfo, dev->platform_data, sizeof(*cinfo));
+		cinfo->snd_card.dev = dev;
 	}
 
 	if (!cinfo->name	||
···
 	cinfo->snd_card.owner		= THIS_MODULE;
 	cinfo->snd_card.dai_link	= &cinfo->snd_link;
 	cinfo->snd_card.num_links	= 1;
+
+	snd_soc_card_set_drvdata(&cinfo->snd_card, cinfo);
 
 	return devm_snd_soc_register_card(&pdev->dev, &cinfo->snd_card);
 }

sound/soc/intel/sst_platform.c

···
 			SNDRV_PCM_INFO_MMAP_VALID |
 			SNDRV_PCM_INFO_BLOCK_TRANSFER |
 			SNDRV_PCM_INFO_SYNC_START),
-	.formats = (SNDRV_PCM_FMTBIT_S16 | SNDRV_PCM_FMTBIT_U16 |
-			SNDRV_PCM_FMTBIT_S24 | SNDRV_PCM_FMTBIT_U24 |
-			SNDRV_PCM_FMTBIT_S32 | SNDRV_PCM_FMTBIT_U32),
-	.rates = (SNDRV_PCM_RATE_8000|
-			SNDRV_PCM_RATE_44100 |
-			SNDRV_PCM_RATE_48000),
-	.rate_min = SST_MIN_RATE,
-	.rate_max = SST_MAX_RATE,
-	.channels_min =	SST_MIN_CHANNEL,
-	.channels_max =	SST_MAX_CHANNEL,
 	.buffer_bytes_max = SST_MAX_BUFFER,
 	.period_bytes_min = SST_MIN_PERIOD_BYTES,
 	.period_bytes_max = SST_MAX_PERIOD_BYTES,

sound/soc/intel/sst_platform.h

···
 #define SST_STEREO		2
 #define SST_MAX_CAP		5
 
-#define SST_MIN_RATE		8000
-#define SST_MAX_RATE		48000
-#define SST_MIN_CHANNEL		1
-#define SST_MAX_CHANNEL		5
 #define SST_MAX_BUFFER		(800*1024)
 #define SST_MIN_BUFFER		(800*1024)
 #define SST_MIN_PERIOD_BYTES	32

sound/soc/kirkwood/kirkwood-dma.c

···
 #include <sound/soc.h>
 #include "kirkwood.h"
 
-#define KIRKWOOD_RATES \
-	(SNDRV_PCM_RATE_8000_192000 |		\
-	 SNDRV_PCM_RATE_CONTINUOUS |		\
-	 SNDRV_PCM_RATE_KNOT)
-
-#define KIRKWOOD_FORMATS \
-	(SNDRV_PCM_FMTBIT_S16_LE | \
-	 SNDRV_PCM_FMTBIT_S24_LE | \
-	 SNDRV_PCM_FMTBIT_S32_LE)
-
 static struct kirkwood_dma_data *kirkwood_priv(struct snd_pcm_substream *subs)
 {
 	struct snd_soc_pcm_runtime *soc_runtime = subs->private_data;
···
 		 SNDRV_PCM_INFO_MMAP_VALID |
 		 SNDRV_PCM_INFO_BLOCK_TRANSFER |
 		 SNDRV_PCM_INFO_PAUSE),
-	.formats		= KIRKWOOD_FORMATS,
-	.rates			= KIRKWOOD_RATES,
-	.rate_min		= 8000,
-	.rate_max		= 384000,
-	.channels_min		= 1,
-	.channels_max		= 8,
 	.buffer_bytes_max	= KIRKWOOD_SND_MAX_BUFFER_BYTES,
 	.period_bytes_min	= KIRKWOOD_SND_MIN_PERIOD_BYTES,
 	.period_bytes_max	= KIRKWOOD_SND_MAX_PERIOD_BYTES,

sound/soc/mxs/mxs-pcm.c

···
 				  SNDRV_PCM_INFO_RESUME |
 				  SNDRV_PCM_INFO_INTERLEAVED |
 				  SNDRV_PCM_INFO_HALF_DUPLEX,
-	.formats		= SNDRV_PCM_FMTBIT_S16_LE |
-				  SNDRV_PCM_FMTBIT_S20_3LE |
-				  SNDRV_PCM_FMTBIT_S24_LE,
-	.channels_min		= 2,
-	.channels_max		= 2,
 	.period_bytes_min	= 32,
 	.period_bytes_max	= 8192,
 	.periods_min		= 1,
···
 int mxs_pcm_platform_register(struct device *dev)
 {
 	return devm_snd_dmaengine_pcm_register(dev, &mxs_dmaengine_pcm_config,
-		SND_DMAENGINE_PCM_FLAG_NO_RESIDUE |
 		SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX);
 }
 EXPORT_SYMBOL_GPL(mxs_pcm_platform_register);

sound/soc/nuc900/nuc900-pcm.c

···
 					SNDRV_PCM_INFO_MMAP_VALID |
 					SNDRV_PCM_INFO_PAUSE |
 					SNDRV_PCM_INFO_RESUME,
-	.formats		= SNDRV_PCM_FMTBIT_S16_LE,
-	.channels_min		= 1,
-	.channels_max		= 2,
 	.buffer_bytes_max	= 4*1024,
 	.period_bytes_min	= 1*1024,
 	.period_bytes_max	= 4*1024,

sound/soc/sh/dma-sh7760.c

···
 #define DMABRG_PREALLOC_BUFFER		32 * 1024
 #define DMABRG_PREALLOC_BUFFER_MAX	32 * 1024
 
-/* support everything the SSI supports */
-#define DMABRG_RATES	\
-	SNDRV_PCM_RATE_8000_192000
-
-#define DMABRG_FMTS	\
-	(SNDRV_PCM_FMTBIT_S8      | SNDRV_PCM_FMTBIT_U8      |	\
-	 SNDRV_PCM_FMTBIT_S16_LE  | SNDRV_PCM_FMTBIT_U16_LE  |	\
-	 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_U20_3LE |	\
-	 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3LE |	\
-	 SNDRV_PCM_FMTBIT_S32_LE  | SNDRV_PCM_FMTBIT_U32_LE)
-
 static struct snd_pcm_hardware camelot_pcm_hardware = {
 	.info = (SNDRV_PCM_INFO_MMAP |
 		SNDRV_PCM_INFO_INTERLEAVED |
 		SNDRV_PCM_INFO_BLOCK_TRANSFER |
 		SNDRV_PCM_INFO_MMAP_VALID |
 		SNDRV_PCM_INFO_BATCH),
-	.formats =	DMABRG_FMTS,
-	.rates =	DMABRG_RATES,
-	.rate_min =		8000,
-	.rate_max =		192000,
-	.channels_min =		2,
-	.channels_max =		8,		/* max of the SSI */
 	.buffer_bytes_max =	DMABRG_PERIOD_MAX,
 	.period_bytes_min =	DMABRG_PERIOD_MIN,
 	.period_bytes_max =	DMABRG_PERIOD_MAX / 2,

sound/soc/sh/fsi.c

···
 			SNDRV_PCM_INFO_MMAP		|
 			SNDRV_PCM_INFO_MMAP_VALID	|
 			SNDRV_PCM_INFO_PAUSE,
-	.formats		= FSI_FMTS,
-	.rates			= FSI_RATES,
-	.rate_min		= 8000,
-	.rate_max		= 192000,
-	.channels_min		= 2,
-	.channels_max		= 2,
 	.buffer_bytes_max	= 64 * 1024,
 	.period_bytes_min	= 32,
 	.period_bytes_max	= 8192,

sound/soc/sh/rcar/core.c

···
 			SNDRV_PCM_INFO_MMAP		|
 			SNDRV_PCM_INFO_MMAP_VALID	|
 			SNDRV_PCM_INFO_PAUSE,
-	.formats		= RSND_FMTS,
-	.rates			= RSND_RATES,
-	.rate_min		= 8000,
-	.rate_max		= 192000,
-	.channels_min		= 2,
-	.channels_max		= 2,
 	.buffer_bytes_max	= 64 * 1024,
 	.period_bytes_min	= 32,
 	.period_bytes_max	= 8192,

sound/soc/ux500/mop500.c

···
 	for (i = 0; i < 2; i++) {
 		mop500_dai_links[i].cpu_of_node = msp_np[i];
 		mop500_dai_links[i].cpu_dai_name = NULL;
+		mop500_dai_links[i].platform_of_node = msp_np[i];
+		mop500_dai_links[i].platform_name = NULL;
 		mop500_dai_links[i].codec_of_node = codec_np;
 		mop500_dai_links[i].codec_name = NULL;
 	}

sound/soc/ux500/ux500_msp_dai.c

···
 #include <linux/bitops.h>
 #include <linux/platform_device.h>
 #include <linux/clk.h>
+#include <linux/of.h>
 #include <linux/regulator/consumer.h>
 #include <linux/mfd/dbx500-prcmu.h>
 #include <linux/platform_data/asoc-ux500-msp.h>
 
 #include <sound/soc.h>
 #include <sound/soc-dai.h>
+#include <sound/dmaengine_pcm.h>
 
 #include "ux500_msp_i2s.h"
 #include "ux500_msp_dai.h"
···
 	return ret;
 }
 
+static int ux500_msp_dai_of_probe(struct snd_soc_dai *dai)
+{
+	struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev);
+	struct snd_dmaengine_dai_dma_data *playback_dma_data;
+	struct snd_dmaengine_dai_dma_data *capture_dma_data;
+
+	playback_dma_data = devm_kzalloc(dai->dev,
+					 sizeof(*playback_dma_data),
+					 GFP_KERNEL);
+	if (!playback_dma_data)
+		return -ENOMEM;
+
+	capture_dma_data = devm_kzalloc(dai->dev,
+					sizeof(*capture_dma_data),
+					GFP_KERNEL);
+	if (!capture_dma_data)
+		return -ENOMEM;
+
+	playback_dma_data->addr = drvdata->msp->playback_dma_data.tx_rx_addr;
+	capture_dma_data->addr = drvdata->msp->capture_dma_data.tx_rx_addr;
+
+	playback_dma_data->maxburst = 4;
+	capture_dma_data->maxburst = 4;
+
+	snd_soc_dai_init_dma_data(dai, playback_dma_data, capture_dma_data);
+
+	return 0;
+}
+
 static int ux500_msp_dai_probe(struct snd_soc_dai *dai)
 {
 	struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev);
+	struct msp_i2s_platform_data *pdata = dai->dev->platform_data;
+	int ret;
 
-	dai->playback_dma_data = &drvdata->msp->playback_dma_data;
-	dai->capture_dma_data = &drvdata->msp->capture_dma_data;
+	if (!pdata) {
+		ret = ux500_msp_dai_of_probe(dai);
+		return ret;
+	}
 
 	drvdata->msp->playback_dma_data.data_size = drvdata->slot_width;
 	drvdata->msp->capture_dma_data.data_size = drvdata->slot_width;
 
+	snd_soc_dai_init_dma_data(dai,
+				  &drvdata->msp->playback_dma_data,
+				  &drvdata->msp->capture_dma_data);
 	return 0;
 }
 
···
 	}
 };
 
-static struct snd_soc_dai_driver ux500_msp_dai_drv[UX500_NBR_OF_DAI] = {
-	{
-		.name = "ux500-msp-i2s.0",
-		.probe = ux500_msp_dai_probe,
-		.id = 0,
-		.suspend = NULL,
-		.resume = NULL,
-		.playback = {
-			.channels_min = UX500_MSP_MIN_CHANNELS,
-			.channels_max = UX500_MSP_MAX_CHANNELS,
-			.rates = UX500_I2S_RATES,
-			.formats = UX500_I2S_FORMATS,
-		},
-		.capture = {
-			.channels_min = UX500_MSP_MIN_CHANNELS,
-			.channels_max = UX500_MSP_MAX_CHANNELS,
-			.rates = UX500_I2S_RATES,
-			.formats = UX500_I2S_FORMATS,
-		},
-		.ops = ux500_msp_dai_ops,
-	},
-	{
-		.name = "ux500-msp-i2s.1",
-		.probe = ux500_msp_dai_probe,
-		.id = 1,
-		.suspend = NULL,
-		.resume = NULL,
-		.playback = {
-			.channels_min = UX500_MSP_MIN_CHANNELS,
-			.channels_max = UX500_MSP_MAX_CHANNELS,
-			.rates = UX500_I2S_RATES,
-			.formats = UX500_I2S_FORMATS,
-		},
-		.capture = {
-			.channels_min = UX500_MSP_MIN_CHANNELS,
-			.channels_max = UX500_MSP_MAX_CHANNELS,
-			.rates = UX500_I2S_RATES,
-			.formats = UX500_I2S_FORMATS,
-		},
-		.ops = ux500_msp_dai_ops,
-	},
-	{
-		.name = "ux500-msp-i2s.2",
-		.id = 2,
-		.probe = ux500_msp_dai_probe,
-		.suspend = NULL,
-		.resume = NULL,
-		.playback = {
-			.channels_min = UX500_MSP_MIN_CHANNELS,
-			.channels_max = UX500_MSP_MAX_CHANNELS,
-			.rates = UX500_I2S_RATES,
-			.formats = UX500_I2S_FORMATS,
-		},
-		.capture = {
-			.channels_min = UX500_MSP_MIN_CHANNELS,
-			.channels_max = UX500_MSP_MAX_CHANNELS,
-			.rates = UX500_I2S_RATES,
-			.formats = UX500_I2S_FORMATS,
-		},
-		.ops = ux500_msp_dai_ops,
-	},
-	{
-		.name = "ux500-msp-i2s.3",
-		.probe = ux500_msp_dai_probe,
-		.id = 3,
-		.suspend = NULL,
-		.resume = NULL,
-		.playback = {
-			.channels_min = UX500_MSP_MIN_CHANNELS,
-			.channels_max = UX500_MSP_MAX_CHANNELS,
-			.rates = UX500_I2S_RATES,
-			.formats = UX500_I2S_FORMATS,
-		},
-		.capture = {
-			.channels_min = UX500_MSP_MIN_CHANNELS,
-			.channels_max = UX500_MSP_MAX_CHANNELS,
-			.rates = UX500_I2S_RATES,
-			.formats = UX500_I2S_FORMATS,
-		},
-		.ops = ux500_msp_dai_ops,
-	},
+static struct snd_soc_dai_driver ux500_msp_dai_drv = {
+	.probe                 = ux500_msp_dai_probe,
+	.suspend               = NULL,
+	.resume                = NULL,
+	.playback.channels_min = UX500_MSP_MIN_CHANNELS,
+	.playback.channels_max = UX500_MSP_MAX_CHANNELS,
+	.playback.rates        = UX500_I2S_RATES,
+	.playback.formats      = UX500_I2S_FORMATS,
+	.capture.channels_min  = UX500_MSP_MIN_CHANNELS,
+	.capture.channels_max  = UX500_MSP_MAX_CHANNELS,
+	.capture.rates         = UX500_I2S_RATES,
+	.capture.formats       = UX500_I2S_FORMATS,
+	.ops                   = ux500_msp_dai_ops,
 };
 
 static const struct snd_soc_component_driver ux500_msp_component = {
···
 static int ux500_msp_drv_probe(struct platform_device *pdev)
 {
 	struct ux500_msp_i2s_drvdata *drvdata;
+	struct msp_i2s_platform_data *pdata = pdev->dev.platform_data;
+	struct device_node *np = pdev->dev.of_node;
 	int ret = 0;
 
-	dev_dbg(&pdev->dev, "%s: Enter (pdev->name = %s).\n", __func__,
-		pdev->name);
+	if (!pdata && !np) {
+		dev_err(&pdev->dev, "No platform data or Device Tree found\n");
+		return -ENODEV;
+	}
 
 	drvdata = devm_kzalloc(&pdev->dev,
 				sizeof(struct ux500_msp_i2s_drvdata),
···
 	dev_set_drvdata(&pdev->dev, drvdata);
 
 	ret = snd_soc_register_component(&pdev->dev, &ux500_msp_component,
-					 &ux500_msp_dai_drv[drvdata->msp->id], 1);
+					 &ux500_msp_dai_drv, 1);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "Error: %s: Failed to register MSP%d!\n",
 			__func__, drvdata->msp->id);

sound/soc/ux500/ux500_msp_i2s.c

···
 
 }
 
+static int ux500_msp_i2s_of_init_msp(struct platform_device *pdev,
+				struct ux500_msp *msp,
+				struct msp_i2s_platform_data **platform_data)
+{
+	struct msp_i2s_platform_data *pdata;
+
+	*platform_data = devm_kzalloc(&pdev->dev,
+				     sizeof(struct msp_i2s_platform_data),
+				     GFP_KERNEL);
+	pdata = *platform_data;
+	if (!pdata)
+		return -ENOMEM;
+
+	msp->playback_dma_data.dma_cfg = devm_kzalloc(&pdev->dev,
+					sizeof(struct stedma40_chan_cfg),
+					GFP_KERNEL);
+	if (!msp->playback_dma_data.dma_cfg)
+		return -ENOMEM;
+
+	msp->capture_dma_data.dma_cfg = devm_kzalloc(&pdev->dev,
+					sizeof(struct stedma40_chan_cfg),
+					GFP_KERNEL);
+	if (!msp->capture_dma_data.dma_cfg)
+		return -ENOMEM;
+
+	return 0;
+}
+
 int ux500_msp_i2s_init_msp(struct platform_device *pdev,
 			struct ux500_msp **msp_p,
 			struct msp_i2s_platform_data *platform_data)
···
 	struct resource *res = NULL;
 	struct device_node *np = pdev->dev.of_node;
 	struct ux500_msp *msp;
+	int ret;
 
 	*msp_p = devm_kzalloc(&pdev->dev, sizeof(struct ux500_msp), GFP_KERNEL);
 	msp = *msp_p;
 	if (!msp)
 		return -ENOMEM;
 
-	if (np) {
-		if (!platform_data) {
-			platform_data = devm_kzalloc(&pdev->dev,
-				sizeof(struct msp_i2s_platform_data), GFP_KERNEL);
-			if (!platform_data)
-				return -ENOMEM;
-		}
-	} else
-		if (!platform_data)
+	if (!platform_data) {
+		if (np) {
+			ret = ux500_msp_i2s_of_init_msp(pdev, msp,
+							&platform_data);
+			if (ret)
+				return ret;
+		} else
 			return -EINVAL;
+	} else {
+		msp->playback_dma_data.dma_cfg = platform_data->msp_i2s_dma_tx;
+		msp->capture_dma_data.dma_cfg = platform_data->msp_i2s_dma_rx;
+		msp->id = platform_data->id;
+	}
 
-	dev_dbg(&pdev->dev, "%s: Enter (name: %s, id: %d).\n", __func__,
-		pdev->name, platform_data->id);
-
-	msp->id = platform_data->id;
 	msp->dev = &pdev->dev;
-	msp->playback_dma_data.dma_cfg = platform_data->msp_i2s_dma_tx;
-	msp->capture_dma_data.dma_cfg = platform_data->msp_i2s_dma_rx;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (res == NULL) {

sound/soc/ux500/ux500_msp_i2s.h

···
 };
 
 struct ux500_msp {
-	enum msp_i2s_id id;
+	int id;
 	void __iomem *registers;
 	struct device *dev;
 	struct ux500_msp_dma_params playback_dma_data;

sound/soc/ux500/ux500_pcm.c

···
 #include "ux500_msp_i2s.h"
 #include "ux500_pcm.h"
 
-#define UX500_PLATFORM_MIN_RATE 8000
-#define UX500_PLATFORM_MAX_RATE 48000
-
-#define UX500_PLATFORM_MIN_CHANNELS 1
-#define UX500_PLATFORM_MAX_CHANNELS 8
-
 #define UX500_PLATFORM_PERIODS_BYTES_MIN	128
 #define UX500_PLATFORM_PERIODS_BYTES_MAX	(64 * PAGE_SIZE)
 #define UX500_PLATFORM_PERIODS_MIN		2
···
 		SNDRV_PCM_INFO_MMAP |
 		SNDRV_PCM_INFO_RESUME |
 		SNDRV_PCM_INFO_PAUSE,
-	.formats = SNDRV_PCM_FMTBIT_S16_LE |
-		SNDRV_PCM_FMTBIT_U16_LE |
-		SNDRV_PCM_FMTBIT_S16_BE |
-		SNDRV_PCM_FMTBIT_U16_BE,
-	.rates = SNDRV_PCM_RATE_KNOT,
-	.rate_min = UX500_PLATFORM_MIN_RATE,
-	.rate_max = UX500_PLATFORM_MAX_RATE,
-	.channels_min = UX500_PLATFORM_MIN_CHANNELS,
-	.channels_max = UX500_PLATFORM_MAX_CHANNELS,
 	.buffer_bytes_max = UX500_PLATFORM_BUFFER_BYTES_MAX,
 	.period_bytes_min = UX500_PLATFORM_PERIODS_BYTES_MIN,
 	.period_bytes_max = UX500_PLATFORM_PERIODS_BYTES_MAX,
···
 	struct snd_pcm_substream *substream)
 {
 	struct snd_soc_dai *dai = rtd->cpu_dai;
-	struct device *dev = dai->dev;
 	u16 per_data_width, mem_data_width;
 	struct stedma40_chan_cfg *dma_cfg;
 	struct ux500_msp_dma_params *dma_params;
-
-	dev_dbg(dev, "%s: MSP %d (%s): Enter.\n", __func__, dai->id,
-		snd_pcm_stream_str(substream));
 
 	dma_params = snd_soc_dai_get_dma_data(dai, substream);
 	dma_cfg = dma_params->dma_cfg;
···
 		struct dma_slave_config *slave_config)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
-	struct ux500_msp_dma_params *dma_params;
-	struct stedma40_chan_cfg *dma_cfg;
+	struct msp_i2s_platform_data *pdata = rtd->cpu_dai->dev->platform_data;
+	struct snd_dmaengine_dai_dma_data *snd_dma_params;
+	struct ux500_msp_dma_params *ste_dma_params;
+	dma_addr_t dma_addr;
 	int ret;
 
-	dma_params = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
-	dma_cfg = dma_params->dma_cfg;
+	if (pdata) {
+		ste_dma_params =
+			snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
+		dma_addr = ste_dma_params->tx_rx_addr;
+	} else {
+		snd_dma_params =
+			snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
+		dma_addr = snd_dma_params->addr;
+	}
 
 	ret = snd_hwparams_to_dma_slave_config(substream, params, slave_config);
 	if (ret)
 		return ret;
 
 	slave_config->dst_maxburst = 4;
-	slave_config->dst_addr_width = dma_cfg->dst_info.data_width;
 	slave_config->src_maxburst = 4;
-	slave_config->src_addr_width = dma_cfg->src_info.data_width;
+
+	slave_config->src_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
+	slave_config->dst_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
 
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-		slave_config->dst_addr = dma_params->tx_rx_addr;
+		slave_config->dst_addr = dma_addr;
 	else
-		slave_config->src_addr = dma_params->tx_rx_addr;
+		slave_config->src_addr = dma_addr;
 
 	return 0;
 }
···
 	.prepare_slave_config = ux500_pcm_prepare_slave_config,
 };
 
+static const struct snd_dmaengine_pcm_config ux500_dmaengine_of_pcm_config = {
+	.compat_request_channel = ux500_pcm_request_chan,
+	.prepare_slave_config = ux500_pcm_prepare_slave_config,
+};
+
 int ux500_pcm_register_platform(struct platform_device *pdev)
 {
+	const struct snd_dmaengine_pcm_config *pcm_config;
+	struct device_node *np = pdev->dev.of_node;
 	int ret;
 
-	ret = snd_dmaengine_pcm_register(&pdev->dev,
-			&ux500_dmaengine_pcm_config,
-			SND_DMAENGINE_PCM_FLAG_NO_RESIDUE |
-			SND_DMAENGINE_PCM_FLAG_COMPAT |
-			SND_DMAENGINE_PCM_FLAG_NO_DT);
+	if (np)
+		pcm_config = &ux500_dmaengine_of_pcm_config;
+	else
+		pcm_config = &ux500_dmaengine_pcm_config;
+
+	ret = snd_dmaengine_pcm_register(&pdev->dev, pcm_config,
+					 SND_DMAENGINE_PCM_FLAG_NO_RESIDUE |
+					 SND_DMAENGINE_PCM_FLAG_COMPAT);
 	if (ret < 0) {
 		dev_err(&pdev->dev,
 			"%s: ERROR: Failed to register platform '%s' (%d)!\n",