diff --git a/sound/soc/codecs/tas2781-fmwlib.c b/sound/soc/codecs/tas2781-fmwlib.c
new file mode 100644
index 000000000000..a2ecc32a870e
--- /dev/null
+++ b/sound/soc/codecs/tas2781-fmwlib.c
@@ -0,0 +1,2439 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// tasdevice-fmw.c -- TASDEVICE firmware support
+//
+// Copyright 2023 Texas Instruments, Inc.
+//
+// Author: Shenghao Ding <shenghao-ding@ti.com>
+
+#include <linux/crc8.h>
+#include <linux/firmware.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+#include <linux/of_irq.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/tlv.h>
+#include <sound/tas2781.h>
+
+
+#define ERROR_PRAM_CRCCHK			0x0000000
+#define ERROR_YRAM_CRCCHK			0x0000001
+#define	PPC_DRIVER_CRCCHK			0x00000200
+
+#define TAS2781_SA_COEFF_SWAP_REG		TASDEVICE_REG(0, 0x35, 0x2c)
+#define TAS2781_YRAM_BOOK1			140
+#define TAS2781_YRAM1_PAGE			42
+#define TAS2781_YRAM1_START_REG			88
+
+#define TAS2781_YRAM2_START_PAGE		43
+#define TAS2781_YRAM2_END_PAGE			49
+#define TAS2781_YRAM2_START_REG			8
+#define TAS2781_YRAM2_END_REG			127
+
+#define TAS2781_YRAM3_PAGE			50
+#define TAS2781_YRAM3_START_REG			8
+#define TAS2781_YRAM3_END_REG			27
+
+/*should not include B0_P53_R44-R47 */
+#define TAS2781_YRAM_BOOK2			0
+#define TAS2781_YRAM4_START_PAGE		50
+#define TAS2781_YRAM4_END_PAGE			60
+
+#define TAS2781_YRAM5_PAGE			61
+#define TAS2781_YRAM5_START_REG			TAS2781_YRAM3_START_REG
+#define TAS2781_YRAM5_END_REG			TAS2781_YRAM3_END_REG
+
+#define TASDEVICE_MAXPROGRAM_NUM_KERNEL			5
+#define TASDEVICE_MAXCONFIG_NUM_KERNEL_MULTIPLE_AMPS	64
+#define TASDEVICE_MAXCONFIG_NUM_KERNEL			10
+#define MAIN_ALL_DEVICES_1X				0x01
+#define MAIN_DEVICE_A_1X				0x02
+#define MAIN_DEVICE_B_1X				0x03
+#define MAIN_DEVICE_C_1X				0x04
+#define MAIN_DEVICE_D_1X				0x05
+#define COEFF_DEVICE_A_1X				0x12
+#define COEFF_DEVICE_B_1X				0x13
+#define COEFF_DEVICE_C_1X				0x14
+#define COEFF_DEVICE_D_1X				0x15
+#define PRE_DEVICE_A_1X					0x22
+#define PRE_DEVICE_B_1X					0x23
+#define PRE_DEVICE_C_1X					0x24
+#define PRE_DEVICE_D_1X					0x25
+#define PRE_SOFTWARE_RESET_DEVICE_A			0x41
+#define PRE_SOFTWARE_RESET_DEVICE_B			0x42
+#define PRE_SOFTWARE_RESET_DEVICE_C			0x43
+#define PRE_SOFTWARE_RESET_DEVICE_D			0x44
+#define POST_SOFTWARE_RESET_DEVICE_A			0x45
+#define POST_SOFTWARE_RESET_DEVICE_B			0x46
+#define POST_SOFTWARE_RESET_DEVICE_C			0x47
+#define POST_SOFTWARE_RESET_DEVICE_D			0x48
+
+struct tas_crc {
+	unsigned char offset;
+	unsigned char len;
+};
+
+const char deviceNumber[TASDEVICE_DSP_TAS_MAX_DEVICE] = {
+	1, 2, 1, 2, 1, 1, 0, 2, 4, 3, 1, 2, 3, 4
+};
+
+static struct tasdevice_config_info *tasdevice_add_config(
+	struct tasdevice_priv *tas_priv, unsigned char *config_data,
+	unsigned int config_size, int *status)
+{
+	struct tasdevice_config_info *cfg_info;
+	struct tasdev_blk_data **bk_da;
+	unsigned int config_offset = 0;
+	unsigned int i;
+
+	/* In most projects are many audio cases, such as music, handfree,
+	 * receiver, games, audio-to-haptics, PMIC record, bypass mode,
+	 * portrait, landscape, etc. Even in multiple audios, one or
+	 * two of the chips will work for the special case, such as
+	 * ultrasonic application. In order to support these variable-numbers
+	 * of audio cases, flexible configs have been introduced in the
+	 * dsp firmware.
+	 */
+	cfg_info = kzalloc(sizeof(struct tasdevice_config_info), GFP_KERNEL);
+	if (!cfg_info) {
+		*status = -ENOMEM;
+		goto out;
+	}
+
+	if (tas_priv->rcabin.fw_hdr.binary_version_num >= 0x105) {
+		if (config_offset + 64 > (int)config_size) {
+			*status = -EINVAL;
+			dev_err(tas_priv->dev, "add conf: Out of boundary\n");
+			goto out;
+		}
+		config_offset += 64;
+	}
+
+	if (config_offset + 4 > (int)config_size) {
+		*status = -EINVAL;
+		dev_err(tas_priv->dev, "add config: Out of boundary\n");
+		goto out;
+	}
+
+	/* convert data[offset], data[offset + 1], data[offset + 2] and
+	 * data[offset + 3] into host
+	 */
+	cfg_info->nblocks =
+		be32_to_cpup((__be32 *)&config_data[config_offset]);
+	config_offset += 4;
+
+	/* Several kinds of dsp/algorithm firmwares can run on tas2781,
+	 * the number and size of blk are not fixed and different among
+	 * these firmwares.
+	 */
+	bk_da = cfg_info->blk_data = kcalloc(cfg_info->nblocks,
+		sizeof(struct tasdev_blk_data *), GFP_KERNEL);
+	if (!bk_da) {
+		*status = -ENOMEM;
+		goto out;
+	}
+	cfg_info->real_nblocks = 0;
+	for (i = 0; i < cfg_info->nblocks; i++) {
+		if (config_offset + 12 > config_size) {
+			*status = -EINVAL;
+			dev_err(tas_priv->dev,
+				"%s: Out of boundary: i = %d nblocks = %u!\n",
+				__func__, i, cfg_info->nblocks);
+			break;
+		}
+		bk_da[i] = kzalloc(sizeof(struct tasdev_blk_data), GFP_KERNEL);
+		if (!bk_da[i]) {
+			*status = -ENOMEM;
+			break;
+		}
+
+		bk_da[i]->dev_idx = config_data[config_offset];
+		config_offset++;
+
+		bk_da[i]->block_type = config_data[config_offset];
+		config_offset++;
+
+		if (bk_da[i]->block_type == TASDEVICE_BIN_BLK_PRE_POWER_UP) {
+			if (bk_da[i]->dev_idx == 0)
+				cfg_info->active_dev = 1;
+			else
+				cfg_info->active_dev = 1 <<
+					(bk_da[i]->dev_idx - 1);
+
+		}
+		bk_da[i]->yram_checksum =
+			be16_to_cpup((__be16 *)&config_data[config_offset]);
+		config_offset += 2;
+		bk_da[i]->block_size =
+			be32_to_cpup((__be32 *)&config_data[config_offset]);
+		config_offset += 4;
+
+		bk_da[i]->n_subblks =
+			be32_to_cpup((__be32 *)&config_data[config_offset]);
+
+		config_offset += 4;
+
+		if (config_offset + bk_da[i]->block_size > config_size) {
+			*status = -EINVAL;
+			dev_err(tas_priv->dev,
+				"%s: Out of boundary: i = %d blks = %u!\n",
+				__func__, i, cfg_info->nblocks);
+			break;
+		}
+		/* instead of kzalloc+memcpy */
+		bk_da[i]->regdata = kmemdup(&config_data[config_offset],
+			bk_da[i]->block_size, GFP_KERNEL);
+		if (!bk_da[i]->regdata) {
+			*status = -ENOMEM;
+			goto out;
+		}
+
+		config_offset += bk_da[i]->block_size;
+		cfg_info->real_nblocks += 1;
+	}
+
+out:
+	return cfg_info;
+}
+
+int tasdevice_rca_parser(void *context, const struct firmware *fmw)
+{
+	struct tasdevice_priv *tas_priv = context;
+	struct tasdevice_config_info **cfg_info;
+	struct tasdevice_rca_hdr *fw_hdr;
+	struct tasdevice_rca *rca;
+	unsigned int total_config_sz = 0;
+	unsigned char *buf;
+	int offset = 0;
+	int ret = 0;
+	int i;
+
+	rca = &(tas_priv->rcabin);
+	fw_hdr = &(rca->fw_hdr);
+	if (!fmw || !fmw->data) {
+		dev_err(tas_priv->dev, "Failed to read %s\n",
+			tas_priv->rca_binaryname);
+		tas_priv->fw_state = TASDEVICE_DSP_FW_FAIL;
+		ret = -EINVAL;
+		goto out;
+	}
+	buf = (unsigned char *)fmw->data;
+
+	fw_hdr->img_sz = be32_to_cpup((__be32 *)&buf[offset]);
+	offset += 4;
+	if (fw_hdr->img_sz != fmw->size) {
+		dev_err(tas_priv->dev,
+			"File size not match, %d %u", (int)fmw->size,
+			fw_hdr->img_sz);
+		tas_priv->fw_state = TASDEVICE_DSP_FW_FAIL;
+		ret = -EINVAL;
+		goto out;
+	}
+
+	fw_hdr->checksum = be32_to_cpup((__be32 *)&buf[offset]);
+	offset += 4;
+	fw_hdr->binary_version_num = be32_to_cpup((__be32 *)&buf[offset]);
+	if (fw_hdr->binary_version_num < 0x103) {
+		dev_err(tas_priv->dev, "File version 0x%04x is too low",
+			fw_hdr->binary_version_num);
+		tas_priv->fw_state = TASDEVICE_DSP_FW_FAIL;
+		ret = -EINVAL;
+		goto out;
+	}
+	offset += 4;
+	fw_hdr->drv_fw_version = be32_to_cpup((__be32 *)&buf[offset]);
+	offset += 8;
+	fw_hdr->plat_type = buf[offset];
+	offset += 1;
+	fw_hdr->dev_family = buf[offset];
+	offset += 1;
+	fw_hdr->reserve = buf[offset];
+	offset += 1;
+	fw_hdr->ndev = buf[offset];
+	offset += 1;
+	if (fw_hdr->ndev != tas_priv->ndev) {
+		dev_err(tas_priv->dev,
+			"ndev(%u) in rcabin mismatch ndev(%u) in DTS\n",
+			fw_hdr->ndev, tas_priv->ndev);
+		tas_priv->fw_state = TASDEVICE_DSP_FW_FAIL;
+		ret = -EINVAL;
+		goto out;
+	}
+	if (offset + TASDEVICE_DEVICE_SUM > fw_hdr->img_sz) {
+		dev_err(tas_priv->dev, "rca_ready: Out of boundary!\n");
+		ret = -EINVAL;
+		tas_priv->fw_state = TASDEVICE_DSP_FW_FAIL;
+		goto out;
+	}
+
+	for (i = 0; i < TASDEVICE_DEVICE_SUM; i++, offset++)
+		fw_hdr->devs[i] = buf[offset];
+
+	fw_hdr->nconfig = be32_to_cpup((__be32 *)&buf[offset]);
+	offset += 4;
+
+	for (i = 0; i < TASDEVICE_CONFIG_SUM; i++) {
+		fw_hdr->config_size[i] = be32_to_cpup((__be32 *)&buf[offset]);
+		offset += 4;
+		total_config_sz += fw_hdr->config_size[i];
+	}
+
+	if (fw_hdr->img_sz - total_config_sz != (unsigned int)offset) {
+		dev_err(tas_priv->dev, "Bin file error!\n");
+		ret = -EINVAL;
+		tas_priv->fw_state = TASDEVICE_DSP_FW_FAIL;
+		goto out;
+	}
+
+	cfg_info = kcalloc(fw_hdr->nconfig, sizeof(*cfg_info), GFP_KERNEL);
+	if (!cfg_info) {
+		ret = -ENOMEM;
+		tas_priv->fw_state = TASDEVICE_DSP_FW_FAIL;
+		goto out;
+	}
+	rca->cfg_info = cfg_info;
+	rca->ncfgs = 0;
+	for (i = 0; i < (int)fw_hdr->nconfig; i++) {
+		rca->ncfgs += 1;
+		cfg_info[i] = tasdevice_add_config(tas_priv, &buf[offset],
+			fw_hdr->config_size[i], &ret);
+		if (ret) {
+			tas_priv->fw_state = TASDEVICE_DSP_FW_FAIL;
+			goto out;
+		}
+		offset += (int)fw_hdr->config_size[i];
+	}
+out:
+	return ret;
+}
+EXPORT_SYMBOL_NS_GPL(tasdevice_rca_parser, SND_SOC_TAS2781_FMWLIB);
+
+static int fw_parse_block_data_kernel(struct tasdevice_fw *tas_fmw,
+	struct tasdev_blk *block, const struct firmware *fmw, int offset)
+{
+	const unsigned char *data = fmw->data;
+
+	if (offset + 16 > fmw->size) {
+		dev_err(tas_fmw->dev, "%s: File Size error\n", __func__);
+		offset = -EINVAL;
+		goto out;
+	}
+
+	/* convert data[offset], data[offset + 1], data[offset + 2] and
+	 * data[offset + 3] into host
+	 */
+	block->type = be32_to_cpup((__be32 *)&data[offset]);
+	offset += 4;
+
+	block->is_pchksum_present = data[offset];
+	offset++;
+
+	block->pchksum = data[offset];
+	offset++;
+
+	block->is_ychksum_present = data[offset];
+	offset++;
+
+	block->ychksum = data[offset];
+	offset++;
+
+	block->blk_size = be32_to_cpup((__be32 *)&data[offset]);
+	offset += 4;
+
+	block->nr_subblocks = be32_to_cpup((__be32 *)&data[offset]);
+	offset += 4;
+
+	if (offset + block->blk_size > fmw->size) {
+		dev_err(tas_fmw->dev, "%s: nSublocks error\n", __func__);
+		offset = -EINVAL;
+		goto out;
+	}
+	/* instead of kzalloc+memcpy */
+	block->data = kmemdup(&data[offset], block->blk_size, GFP_KERNEL);
+	if (!block->data) {
+		offset = -ENOMEM;
+		goto out;
+	}
+	offset += block->blk_size;
+
+out:
+	return offset;
+}
+
+static int fw_parse_data_kernel(struct tasdevice_fw *tas_fmw,
+	struct tasdevice_data *img_data, const struct firmware *fmw,
+	int offset)
+{
+	const unsigned char *data = fmw->data;
+	struct tasdev_blk *blk;
+	unsigned int i;
+
+	if (offset + 4 > fmw->size) {
+		dev_err(tas_fmw->dev, "%s: File Size error\n", __func__);
+		offset = -EINVAL;
+		goto out;
+	}
+	img_data->nr_blk = be32_to_cpup((__be32 *)&data[offset]);
+	offset += 4;
+
+	img_data->dev_blks = kcalloc(img_data->nr_blk,
+		sizeof(struct tasdev_blk), GFP_KERNEL);
+	if (!img_data->dev_blks) {
+		offset = -ENOMEM;
+		goto out;
+	}
+
+	for (i = 0; i < img_data->nr_blk; i++) {
+		blk = &(img_data->dev_blks[i]);
+		offset = fw_parse_block_data_kernel(tas_fmw, blk, fmw, offset);
+		if (offset < 0) {
+			offset = -EINVAL;
+			break;
+		}
+	}
+
+out:
+	return offset;
+}
+
+static int fw_parse_program_data_kernel(
+	struct tasdevice_priv *tas_priv, struct tasdevice_fw *tas_fmw,
+	const struct firmware *fmw, int offset)
+{
+	struct tasdevice_prog *program;
+	unsigned int i;
+
+	for (i = 0; i < tas_fmw->nr_programs; i++) {
+		program = &(tas_fmw->programs[i]);
+		if (offset + 72 > fmw->size) {
+			dev_err(tas_priv->dev, "%s: mpName error\n", __func__);
+			offset = -EINVAL;
+			goto out;
+		}
+		/*skip 72 unused byts*/
+		offset += 72;
+
+		offset = fw_parse_data_kernel(tas_fmw, &(program->dev_data),
+			fmw, offset);
+		if (offset < 0)
+			goto out;
+	}
+
+out:
+	return offset;
+}
+
+static int fw_parse_configuration_data_kernel(
+	struct tasdevice_priv *tas_priv,
+	struct tasdevice_fw *tas_fmw, const struct firmware *fmw, int offset)
+{
+	const unsigned char *data = fmw->data;
+	struct tasdevice_config *config;
+	unsigned int i;
+
+	for (i = 0; i < tas_fmw->nr_configurations; i++) {
+		config = &(tas_fmw->configs[i]);
+		if (offset + 80 > fmw->size) {
+			dev_err(tas_priv->dev, "%s: mpName error\n", __func__);
+			offset = -EINVAL;
+			goto out;
+		}
+		memcpy(config->name, &data[offset], 64);
+		/*skip extra 16 bytes*/
+		offset += 80;
+
+		offset = fw_parse_data_kernel(tas_fmw, &(config->dev_data),
+			fmw, offset);
+		if (offset < 0)
+			goto out;
+	}
+
+out:
+	return offset;
+}
+
+static int fw_parse_variable_header_kernel(
+	struct tasdevice_priv *tas_priv, const struct firmware *fmw,
+	int offset)
+{
+	struct tasdevice_fw *tas_fmw = tas_priv->fmw;
+	struct tasdevice_dspfw_hdr *fw_hdr = &(tas_fmw->fw_hdr);
+	struct tasdevice_prog *program;
+	struct tasdevice_config *config;
+	const unsigned char *buf = fmw->data;
+	unsigned short max_confs;
+	unsigned int i;
+
+	if (offset + 12 + 4 * TASDEVICE_MAXPROGRAM_NUM_KERNEL > fmw->size) {
+		dev_err(tas_priv->dev, "%s: File Size error\n", __func__);
+		offset = -EINVAL;
+		goto out;
+	}
+	fw_hdr->device_family = be16_to_cpup((__be16 *)&buf[offset]);
+	if (fw_hdr->device_family != 0) {
+		dev_err(tas_priv->dev, "%s:not TAS device\n", __func__);
+		offset = -EINVAL;
+		goto out;
+	}
+	offset += 2;
+	fw_hdr->device = be16_to_cpup((__be16 *)&buf[offset]);
+	if (fw_hdr->device >= TASDEVICE_DSP_TAS_MAX_DEVICE ||
+		fw_hdr->device == 6) {
+		dev_err(tas_priv->dev, "Unsupported dev %d\n", fw_hdr->device);
+		offset = -EINVAL;
+		goto out;
+	}
+	offset += 2;
+	fw_hdr->ndev = deviceNumber[fw_hdr->device];
+
+	if (fw_hdr->ndev != tas_priv->ndev) {
+		dev_err(tas_priv->dev,
+			"%s: ndev(%u) in dspbin mismatch ndev(%u) in DTS\n",
+			__func__, fw_hdr->ndev, tas_priv->ndev);
+		offset = -EINVAL;
+		goto out;
+	}
+
+	tas_fmw->nr_programs = be32_to_cpup((__be32 *)&buf[offset]);
+	offset += 4;
+
+	if (tas_fmw->nr_programs == 0 || tas_fmw->nr_programs >
+		TASDEVICE_MAXPROGRAM_NUM_KERNEL) {
+		dev_err(tas_priv->dev, "mnPrograms is invalid\n");
+		offset = -EINVAL;
+		goto out;
+	}
+
+	tas_fmw->programs = kcalloc(tas_fmw->nr_programs,
+		sizeof(struct tasdevice_prog), GFP_KERNEL);
+	if (!tas_fmw->programs) {
+		offset = -ENOMEM;
+		goto out;
+	}
+
+	for (i = 0; i < tas_fmw->nr_programs; i++) {
+		program = &(tas_fmw->programs[i]);
+		program->prog_size = be32_to_cpup((__be32 *)&buf[offset]);
+		offset += 4;
+	}
+
+	/* Skip the unused prog_size */
+	offset += 4 * (TASDEVICE_MAXPROGRAM_NUM_KERNEL - tas_fmw->nr_programs);
+
+	tas_fmw->nr_configurations = be32_to_cpup((__be32 *)&buf[offset]);
+	offset += 4;
+
+	/* The max number of config in firmware greater than 4 pieces of
+	 * tas2781s is different from the one lower than 4 pieces of
+	 * tas2781s.
+	 */
+	max_confs = (fw_hdr->ndev >= 4) ?
+		TASDEVICE_MAXCONFIG_NUM_KERNEL_MULTIPLE_AMPS :
+		TASDEVICE_MAXCONFIG_NUM_KERNEL;
+	if (tas_fmw->nr_configurations == 0 ||
+		tas_fmw->nr_configurations > max_confs) {
+		dev_err(tas_priv->dev, "%s: Conf is invalid\n", __func__);
+		offset = -EINVAL;
+		goto out;
+	}
+
+	if (offset + 4 * max_confs > fmw->size) {
+		dev_err(tas_priv->dev, "%s: mpConfigurations err\n", __func__);
+		offset = -EINVAL;
+		goto out;
+	}
+
+	tas_fmw->configs = kcalloc(tas_fmw->nr_configurations,
+		sizeof(struct tasdevice_config), GFP_KERNEL);
+	if (!tas_fmw->configs) {
+		offset = -ENOMEM;
+		goto out;
+	}
+
+	for (i = 0; i < tas_fmw->nr_programs; i++) {
+		config = &(tas_fmw->configs[i]);
+		config->cfg_size = be32_to_cpup((__be32 *)&buf[offset]);
+		offset += 4;
+	}
+
+	/* Skip the unused configs */
+	offset += 4 * (max_confs - tas_fmw->nr_programs);
+
+out:
+	return offset;
+}
+
+static int tasdevice_process_block(void *context, unsigned char *data,
+	unsigned char dev_idx, int sublocksize)
+{
+	struct tasdevice_priv *tas_priv = (struct tasdevice_priv *)context;
+	int subblk_offset, chn, chnend, rc;
+	unsigned char subblk_typ = data[1];
+	int blktyp = dev_idx & 0xC0;
+	int idx = dev_idx & 0x3F;
+	bool is_err = false;
+
+	if (idx) {
+		chn = idx - 1;
+		chnend = idx;
+	} else {
+		if (tas_priv->set_global_mode) {
+			chn = tas_priv->ndev;
+			chnend = tas_priv->ndev + 1;
+		} else {
+			chn = 0;
+			chnend = tas_priv->ndev;
+		}
+	}
+
+	for (; chn < chnend; chn++) {
+		if (!tas_priv->set_global_mode &&
+			tas_priv->tasdevice[chn].is_loading == false)
+			continue;
+
+		is_err = false;
+		subblk_offset = 2;
+		switch (subblk_typ) {
+		case TASDEVICE_CMD_SING_W: {
+			int i;
+			unsigned short len = be16_to_cpup((__be16 *)&data[2]);
+
+			subblk_offset += 2;
+			if (subblk_offset + 4 * len > sublocksize) {
+				dev_err(tas_priv->dev,
+					"process_block: Out of boundary\n");
+				is_err = true;
+				break;
+			}
+
+			for (i = 0; i < len; i++) {
+				rc = tasdevice_dev_write(tas_priv, chn,
+					TASDEVICE_REG(data[subblk_offset],
+						data[subblk_offset + 1],
+						data[subblk_offset + 2]),
+					data[subblk_offset + 3]);
+				if (rc < 0) {
+					is_err = true;
+					dev_err(tas_priv->dev,
+					"process_block: single write error\n");
+				}
+				subblk_offset += 4;
+			}
+		}
+			break;
+		case TASDEVICE_CMD_BURST: {
+			unsigned short len = be16_to_cpup((__be16 *)&data[2]);
+
+			subblk_offset += 2;
+			if (subblk_offset + 4 + len > sublocksize) {
+				dev_err(tas_priv->dev,
+					"%s: BST Out of boundary\n",
+					__func__);
+				is_err = true;
+				break;
+			}
+			if (len % 4) {
+				dev_err(tas_priv->dev,
+					"%s:Bst-len(%u)not div by 4\n",
+					__func__, len);
+				break;
+			}
+
+			rc = tasdevice_dev_bulk_write(tas_priv, chn,
+				TASDEVICE_REG(data[subblk_offset],
+				data[subblk_offset + 1],
+				data[subblk_offset + 2]),
+				&(data[subblk_offset + 4]), len);
+			if (rc < 0) {
+				is_err = true;
+				dev_err(tas_priv->dev,
+					"%s: bulk_write error = %d\n",
+					__func__, rc);
+			}
+			subblk_offset += (len + 4);
+		}
+			break;
+		case TASDEVICE_CMD_DELAY: {
+			unsigned int sleep_time = 0;
+
+			if (subblk_offset + 2 > sublocksize) {
+				dev_err(tas_priv->dev,
+					"%s: delay Out of boundary\n",
+					__func__);
+				is_err = true;
+				break;
+			}
+			sleep_time = be16_to_cpup((__be16 *)&data[2]) * 1000;
+			usleep_range(sleep_time, sleep_time + 50);
+			subblk_offset += 2;
+		}
+			break;
+		case TASDEVICE_CMD_FIELD_W:
+			if (subblk_offset + 6 > sublocksize) {
+				dev_err(tas_priv->dev,
+					"%s: bit write Out of boundary\n",
+					__func__);
+				is_err = true;
+				break;
+			}
+			rc = tasdevice_dev_update_bits(tas_priv, chn,
+				TASDEVICE_REG(data[subblk_offset + 2],
+				data[subblk_offset + 3],
+				data[subblk_offset + 4]),
+				data[subblk_offset + 1],
+				data[subblk_offset + 5]);
+			if (rc < 0) {
+				is_err = true;
+				dev_err(tas_priv->dev,
+					"%s: update_bits error = %d\n",
+					__func__, rc);
+			}
+			subblk_offset += 6;
+			break;
+		default:
+			break;
+		}
+		if (is_err == true && blktyp != 0) {
+			if (blktyp == 0x80) {
+				tas_priv->tasdevice[chn].cur_prog = -1;
+				tas_priv->tasdevice[chn].cur_conf = -1;
+			} else
+				tas_priv->tasdevice[chn].cur_conf = -1;
+		}
+	}
+
+	return subblk_offset;
+}
+
+void tasdevice_select_cfg_blk(void *pContext, int conf_no,
+	unsigned char block_type)
+{
+	struct tasdevice_priv *tas_priv = (struct tasdevice_priv *) pContext;
+	struct tasdevice_rca *rca = &(tas_priv->rcabin);
+	struct tasdevice_config_info **cfg_info = rca->cfg_info;
+	struct tasdev_blk_data **blk_data;
+	int j, k, chn, chnend;
+
+	if (conf_no >= rca->ncfgs || conf_no < 0 || !cfg_info) {
+		dev_err(tas_priv->dev, "conf_no should be not more than %u\n",
+			rca->ncfgs);
+		return;
+	}
+	blk_data =	cfg_info[conf_no]->blk_data;
+
+	for (j = 0; j < (int)cfg_info[conf_no]->real_nblocks; j++) {
+		unsigned int length = 0, rc = 0;
+
+		if (block_type > 5 || block_type < 2) {
+			dev_err(tas_priv->dev,
+				"block_type should be in range from 2 to 5\n");
+			break;
+		}
+		if (block_type != blk_data[j]->block_type)
+			continue;
+
+		for (k = 0; k < (int)blk_data[j]->n_subblks; k++) {
+			if (blk_data[j]->dev_idx) {
+				chn = blk_data[j]->dev_idx - 1;
+				chnend = blk_data[j]->dev_idx;
+			} else {
+				chn = 0;
+				chnend = tas_priv->ndev;
+			}
+			for (; chn < chnend; chn++)
+				tas_priv->tasdevice[chn].is_loading = true;
+
+			rc = tasdevice_process_block(tas_priv,
+				blk_data[j]->regdata + length,
+				blk_data[j]->dev_idx,
+				blk_data[j]->block_size - length);
+			length += rc;
+			if (blk_data[j]->block_size < length) {
+				dev_err(tas_priv->dev,
+					"%s: %u %u out of boundary\n",
+					__func__, length,
+					blk_data[j]->block_size);
+				break;
+			}
+		}
+		if (length != blk_data[j]->block_size)
+			dev_err(tas_priv->dev, "%s: %u %u size is not same\n",
+				__func__, length, blk_data[j]->block_size);
+	}
+}
+EXPORT_SYMBOL_NS_GPL(tasdevice_select_cfg_blk, SND_SOC_TAS2781_FMWLIB);
+
+static int tasdevice_load_block_kernel(
+	struct tasdevice_priv *tasdevice, struct tasdev_blk *block)
+{
+	struct tasdevice_dspfw_hdr *fw_hdr = &(tasdevice->fmw->fw_hdr);
+	struct tasdevice_fw_fixed_hdr *fw_fixed_hdr = &(fw_hdr->fixed_hdr);
+	const unsigned int blk_size = block->blk_size;
+	unsigned int i, length;
+	unsigned char *data = block->data;
+	unsigned char dev_idx = 0;
+
+	if (fw_fixed_hdr->ppcver >= PPC3_VERSION_TAS2781) {
+		switch (block->type) {
+		case MAIN_ALL_DEVICES_1X:
+			dev_idx = 0x80;
+			break;
+		case MAIN_DEVICE_A_1X:
+			dev_idx = 0x81;
+			break;
+		case COEFF_DEVICE_A_1X:
+		case PRE_DEVICE_A_1X:
+		case PRE_SOFTWARE_RESET_DEVICE_A:
+		case POST_SOFTWARE_RESET_DEVICE_A:
+			dev_idx = 0xC1;
+			break;
+		case MAIN_DEVICE_B_1X:
+			dev_idx = 0x82;
+			break;
+		case COEFF_DEVICE_B_1X:
+		case PRE_DEVICE_B_1X:
+		case PRE_SOFTWARE_RESET_DEVICE_B:
+		case POST_SOFTWARE_RESET_DEVICE_B:
+			dev_idx = 0xC2;
+			break;
+		case MAIN_DEVICE_C_1X:
+			dev_idx = 0x83;
+			break;
+		case COEFF_DEVICE_C_1X:
+		case PRE_DEVICE_C_1X:
+		case PRE_SOFTWARE_RESET_DEVICE_C:
+		case POST_SOFTWARE_RESET_DEVICE_C:
+			dev_idx = 0xC3;
+			break;
+		case MAIN_DEVICE_D_1X:
+			dev_idx = 0x84;
+			break;
+		case COEFF_DEVICE_D_1X:
+		case PRE_DEVICE_D_1X:
+		case PRE_SOFTWARE_RESET_DEVICE_D:
+		case POST_SOFTWARE_RESET_DEVICE_D:
+			dev_idx = 0xC4;
+			break;
+		default:
+			dev_info(tasdevice->dev,
+				"%s: load block: Other Type = 0x%02x\n",
+				__func__, block->type);
+			break;
+		}
+	} else if (fw_fixed_hdr->ppcver >=
+	PPC3_VERSION) {
+		switch (block->type) {
+		case MAIN_ALL_DEVICES_1X:
+			dev_idx = 0x80;
+			break;
+		case MAIN_DEVICE_A_1X:
+			dev_idx = 0x81;
+			break;
+		case COEFF_DEVICE_A_1X:
+		case PRE_DEVICE_A_1X:
+			dev_idx = 0xC1;
+			break;
+		case MAIN_DEVICE_B_1X:
+			dev_idx = 0x82;
+			break;
+		case COEFF_DEVICE_B_1X:
+		case PRE_DEVICE_B_1X:
+			dev_idx = 0xC2;
+			break;
+		case MAIN_DEVICE_C_1X:
+			dev_idx = 0x83;
+			break;
+		case COEFF_DEVICE_C_1X:
+		case PRE_DEVICE_C_1X:
+			dev_idx = 0xC3;
+			break;
+		case MAIN_DEVICE_D_1X:
+			dev_idx = 0x84;
+			break;
+		case COEFF_DEVICE_D_1X:
+		case PRE_DEVICE_D_1X:
+			dev_idx = 0xC4;
+			break;
+		default:
+			dev_info(tasdevice->dev,
+				"%s: load block: Other Type = 0x%02x\n",
+				__func__, block->type);
+			break;
+		}
+	} else {
+		switch (block->type) {
+		case MAIN_ALL_DEVICES:
+			dev_idx = 0|0x80;
+			break;
+		case MAIN_DEVICE_A:
+			dev_idx = 0x81;
+			break;
+		case COEFF_DEVICE_A:
+		case PRE_DEVICE_A:
+			dev_idx = 0xC1;
+			break;
+		case MAIN_DEVICE_B:
+			dev_idx = 0x82;
+			break;
+		case COEFF_DEVICE_B:
+		case PRE_DEVICE_B:
+			dev_idx = 0xC2;
+			break;
+		case MAIN_DEVICE_C:
+			dev_idx = 0x83;
+			break;
+		case COEFF_DEVICE_C:
+		case PRE_DEVICE_C:
+			dev_idx = 0xC3;
+			break;
+		case MAIN_DEVICE_D:
+			dev_idx = 0x84;
+			break;
+		case COEFF_DEVICE_D:
+		case PRE_DEVICE_D:
+			dev_idx = 0xC4;
+			break;
+		default:
+			dev_info(tasdevice->dev,
+				"%s: load block: Other Type = 0x%02x\n",
+				__func__, block->type);
+			break;
+		}
+	}
+
+	for (i = 0, length = 0; i < block->nr_subblocks; i++) {
+		int rc = tasdevice_process_block(tasdevice, data + length,
+			dev_idx, blk_size - length);
+		if (rc < 0) {
+			dev_err(tasdevice->dev,
+				"%s: %u %u sublock write error\n",
+				__func__, length, blk_size);
+			break;
+		}
+		length += (unsigned int)rc;
+		if (blk_size < length) {
+			dev_err(tasdevice->dev, "%s: %u %u out of boundary\n",
+				__func__, length, blk_size);
+			break;
+		}
+	}
+
+	return 0;
+}
+
+static int fw_parse_variable_hdr(struct tasdevice_priv
+	*tas_priv, struct tasdevice_dspfw_hdr *fw_hdr,
+	const struct firmware *fmw, int offset)
+{
+	const unsigned char *buf = fmw->data;
+	int len = strlen((char *)&buf[offset]);
+
+	len++;
+
+	if (offset + len + 8 > fmw->size) {
+		dev_err(tas_priv->dev, "%s: File Size error\n", __func__);
+		offset = -EINVAL;
+		goto out;
+	}
+
+	offset += len;
+
+	fw_hdr->device_family = be32_to_cpup((__be32 *)&buf[offset]);
+	if (fw_hdr->device_family != 0) {
+		dev_err(tas_priv->dev, "%s: not TAS device\n", __func__);
+		offset = -EINVAL;
+		goto out;
+	}
+	offset += 4;
+
+	fw_hdr->device = be32_to_cpup((__be32 *)&buf[offset]);
+	if (fw_hdr->device >= TASDEVICE_DSP_TAS_MAX_DEVICE ||
+		fw_hdr->device == 6) {
+		dev_err(tas_priv->dev, "Unsupported dev %d\n", fw_hdr->device);
+		offset = -EINVAL;
+		goto out;
+	}
+	offset += 4;
+	fw_hdr->ndev = deviceNumber[fw_hdr->device];
+
+out:
+	return offset;
+}
+
+static int fw_parse_variable_header_git(struct tasdevice_priv
+	*tas_priv, const struct firmware *fmw, int offset)
+{
+	struct tasdevice_fw *tas_fmw = tas_priv->fmw;
+	struct tasdevice_dspfw_hdr *fw_hdr = &(tas_fmw->fw_hdr);
+
+	offset = fw_parse_variable_hdr(tas_priv, fw_hdr, fmw, offset);
+	if (offset < 0)
+		goto out;
+	if (fw_hdr->ndev != tas_priv->ndev) {
+		dev_err(tas_priv->dev,
+			"%s: ndev(%u) in dspbin mismatch ndev(%u) in DTS\n",
+			__func__, fw_hdr->ndev, tas_priv->ndev);
+		offset = -EINVAL;
+	}
+
+out:
+	return offset;
+}
+
+static int fw_parse_block_data(struct tasdevice_fw *tas_fmw,
+	struct tasdev_blk *block, const struct firmware *fmw, int offset)
+{
+	unsigned char *data = (unsigned char *)fmw->data;
+	int n;
+
+	if (offset + 8 > fmw->size) {
+		dev_err(tas_fmw->dev, "%s: Type error\n", __func__);
+		offset = -EINVAL;
+		goto out;
+	}
+	block->type = be32_to_cpup((__be32 *)&data[offset]);
+	offset += 4;
+
+	if (tas_fmw->fw_hdr.fixed_hdr.drv_ver >= PPC_DRIVER_CRCCHK) {
+		if (offset + 8 > fmw->size) {
+			dev_err(tas_fmw->dev, "PChkSumPresent error\n");
+			offset = -EINVAL;
+			goto out;
+		}
+		block->is_pchksum_present = data[offset];
+		offset++;
+
+		block->pchksum = data[offset];
+		offset++;
+
+		block->is_ychksum_present = data[offset];
+		offset++;
+
+		block->ychksum = data[offset];
+		offset++;
+	} else {
+		block->is_pchksum_present = 0;
+		block->is_ychksum_present = 0;
+	}
+
+	block->nr_cmds = be32_to_cpup((__be32 *)&data[offset]);
+	offset += 4;
+
+	n = block->nr_cmds * 4;
+	if (offset + n > fmw->size) {
+		dev_err(tas_fmw->dev,
+			"%s: File Size(%lu) error offset = %d n = %d\n",
+			__func__, (unsigned long)fmw->size, offset, n);
+		offset = -EINVAL;
+		goto out;
+	}
+	/* instead of kzalloc+memcpy */
+	block->data = kmemdup(&data[offset], n, GFP_KERNEL);
+	if (!block->data) {
+		offset = -ENOMEM;
+		goto out;
+	}
+	offset += n;
+
+out:
+	return offset;
+}
+
+/* When parsing error occurs, all the memory resource will be released
+ * in the end of tasdevice_rca_ready.
+ */
+static int fw_parse_data(struct tasdevice_fw *tas_fmw,
+	struct tasdevice_data *img_data, const struct firmware *fmw,
+	int offset)
+{
+	const unsigned char *data = (unsigned char *)fmw->data;
+	struct tasdev_blk *blk;
+	unsigned int i;
+	int n;
+
+	if (offset + 64 > fmw->size) {
+		dev_err(tas_fmw->dev, "%s: Name error\n", __func__);
+		offset = -EINVAL;
+		goto out;
+	}
+	memcpy(img_data->name, &data[offset], 64);
+	offset += 64;
+
+	n = strlen((char *)&data[offset]);
+	n++;
+	if (offset + n + 2 > fmw->size) {
+		dev_err(tas_fmw->dev, "%s: Description error\n", __func__);
+		offset = -EINVAL;
+		goto out;
+	}
+	offset += n;
+	img_data->nr_blk = be16_to_cpup((__be16 *)&data[offset]);
+	offset += 2;
+
+	img_data->dev_blks = kcalloc(img_data->nr_blk,
+		sizeof(struct tasdev_blk), GFP_KERNEL);
+	if (!img_data->dev_blks) {
+		offset = -ENOMEM;
+		goto out;
+	}
+	for (i = 0; i < img_data->nr_blk; i++) {
+		blk = &(img_data->dev_blks[i]);
+		offset = fw_parse_block_data(tas_fmw, blk, fmw, offset);
+		if (offset < 0) {
+			offset = -EINVAL;
+			goto out;
+		}
+	}
+
+out:
+	return offset;
+}
+
+/* When parsing error occurs, all the memory resource will be released
+ * in the end of tasdevice_rca_ready.
+ */
+static int fw_parse_program_data(struct tasdevice_priv *tas_priv,
+	struct tasdevice_fw *tas_fmw, const struct firmware *fmw, int offset)
+{
+	unsigned char *buf = (unsigned char *)fmw->data;
+	struct tasdevice_prog *program;
+	int i;
+
+	if (offset + 2 > fmw->size) {
+		dev_err(tas_priv->dev, "%s: File Size error\n", __func__);
+		offset = -EINVAL;
+		goto out;
+	}
+	tas_fmw->nr_programs = be16_to_cpup((__be16 *)&buf[offset]);
+	offset += 2;
+
+	if (tas_fmw->nr_programs == 0) {
+		/*Not error in calibration Data file, return directly*/
+		dev_info(tas_priv->dev, "%s: No Programs data, maybe calbin\n",
+			__func__);
+		goto out;
+	}
+
+	tas_fmw->programs =
+		kcalloc(tas_fmw->nr_programs, sizeof(struct tasdevice_prog),
+			GFP_KERNEL);
+	if (!tas_fmw->programs) {
+		offset = -ENOMEM;
+		goto out;
+	}
+	for (i = 0; i < tas_fmw->nr_programs; i++) {
+		int n = 0;
+
+		program = &(tas_fmw->programs[i]);
+		if (offset + 64 > fmw->size) {
+			dev_err(tas_priv->dev, "%s: mpName error\n", __func__);
+			offset = -EINVAL;
+			goto out;
+		}
+		offset += 64;
+
+		n = strlen((char *)&buf[offset]);
+		/* skip '\0' and 5 unused bytes */
+		n += 6;
+		if (offset + n > fmw->size) {
+			dev_err(tas_priv->dev, "Description err\n");
+			offset = -EINVAL;
+			goto out;
+		}
+
+		offset += n;
+
+		offset = fw_parse_data(tas_fmw, &(program->dev_data), fmw,
+			offset);
+		if (offset < 0)
+			goto out;
+	}
+
+out:
+	return offset;
+}
+
+/* When parsing error occurs, all the memory resource will be released
+ * in the end of tasdevice_rca_ready.
+ */
+static int fw_parse_configuration_data(
+	struct tasdevice_priv *tas_priv,
+	struct tasdevice_fw *tas_fmw,
+	const struct firmware *fmw, int offset)
+{
+	unsigned char *data = (unsigned char *)fmw->data;
+	struct tasdevice_config *config;
+	unsigned int i;
+	int n;
+
+	if (offset + 2 > fmw->size) {
+		dev_err(tas_priv->dev, "%s: File Size error\n", __func__);
+		offset = -EINVAL;
+		goto out;
+	}
+	tas_fmw->nr_configurations = be16_to_cpup((__be16 *)&data[offset]);
+	offset += 2;
+
+	if (tas_fmw->nr_configurations == 0) {
+		dev_err(tas_priv->dev, "%s: Conf is zero\n", __func__);
+		/*Not error for calibration Data file, return directly*/
+		goto out;
+	}
+	tas_fmw->configs = kcalloc(tas_fmw->nr_configurations,
+			sizeof(struct tasdevice_config), GFP_KERNEL);
+	if (!tas_fmw->configs) {
+		offset = -ENOMEM;
+		goto out;
+	}
+	for (i = 0; i < tas_fmw->nr_configurations; i++) {
+		config = &(tas_fmw->configs[i]);
+		if (offset + 64 > fmw->size) {
+			dev_err(tas_priv->dev, "File Size err\n");
+			offset = -EINVAL;
+			goto out;
+		}
+		memcpy(config->name, &data[offset], 64);
+		offset += 64;
+
+		n = strlen((char *)&data[offset]);
+		n += 15;
+		if (offset + n > fmw->size) {
+			dev_err(tas_priv->dev, "Description err\n");
+			offset = -EINVAL;
+			goto out;
+		}
+
+		offset += n;
+
+		offset = fw_parse_data(tas_fmw, &(config->dev_data),
+			fmw, offset);
+		if (offset < 0)
+			goto out;
+	}
+
+out:
+	return offset;
+}
+
+static bool check_inpage_yram_rg(struct tas_crc *cd,
+	unsigned char reg, unsigned char len)
+{
+	bool in = false;
+
+
+	if (reg <= TAS2781_YRAM5_END_REG &&
+		reg >= TAS2781_YRAM5_START_REG) {
+		if (reg + len > TAS2781_YRAM5_END_REG)
+			cd->len = TAS2781_YRAM5_END_REG - reg + 1;
+		else
+			cd->len = len;
+		cd->offset = reg;
+		in = true;
+	} else if (reg < TAS2781_YRAM5_START_REG) {
+		if (reg + len > TAS2781_YRAM5_START_REG) {
+			cd->offset = TAS2781_YRAM5_START_REG;
+			cd->len = len - TAS2781_YRAM5_START_REG + reg;
+			in = true;
+		}
+	}
+
+	return in;
+}
+
+static bool check_inpage_yram_bk1(struct tas_crc *cd,
+	unsigned char page, unsigned char reg, unsigned char len)
+{
+	bool in = false;
+
+	if (page == TAS2781_YRAM1_PAGE) {
+		if (reg >= TAS2781_YRAM1_START_REG) {
+			cd->offset = reg;
+			cd->len = len;
+			in = true;
+		} else if (reg + len > TAS2781_YRAM1_START_REG) {
+			cd->offset = TAS2781_YRAM1_START_REG;
+			cd->len = len - TAS2781_YRAM1_START_REG + reg;
+			in = true;
+		}
+	} else if (page == TAS2781_YRAM3_PAGE)
+		in = check_inpage_yram_rg(cd, reg, len);
+
+	return in;
+}
+
+/* Return Code:
+ * true -- the registers are in the inpage yram
+ * false -- the registers are NOT in the inpage yram
+ */
+static bool check_inpage_yram(struct tas_crc *cd, unsigned char book,
+	unsigned char page, unsigned char reg, unsigned char len)
+{
+	bool in = false;
+
+	if (book == TAS2781_YRAM_BOOK1) {
+		in = check_inpage_yram_bk1(cd, page, reg, len);
+		goto end;
+	}
+	if (book == TAS2781_YRAM_BOOK2 && page == TAS2781_YRAM5_PAGE)
+		in = check_inpage_yram_rg(cd, reg, len);
+
+end:
+	return in;
+}
+
+static bool check_inblock_yram_bk(struct tas_crc *cd,
+	unsigned char page, unsigned char reg, unsigned char len)
+{
+	bool in = false;
+
+	if ((page >= TAS2781_YRAM4_START_PAGE &&
+		page <= TAS2781_YRAM4_END_PAGE) ||
+		(page >= TAS2781_YRAM2_START_PAGE &&
+		page <= TAS2781_YRAM2_END_PAGE)) {
+		if (reg <= TAS2781_YRAM2_END_REG &&
+			reg >= TAS2781_YRAM2_START_REG) {
+			cd->offset = reg;
+			cd->len = len;
+			in = true;
+		} else if (reg < TAS2781_YRAM2_START_REG) {
+			if (reg + len - 1 >= TAS2781_YRAM2_START_REG) {
+				cd->offset = TAS2781_YRAM2_START_REG;
+				cd->len = reg + len - TAS2781_YRAM2_START_REG;
+				in = true;
+			}
+		}
+	}
+
+	return in;
+}
+
+/* Return Code:
+ * true -- the registers are in the inblock yram
+ * false -- the registers are NOT in the inblock yram
+ */
+static bool check_inblock_yram(struct tas_crc *cd, unsigned char book,
+	unsigned char page, unsigned char reg, unsigned char len)
+{
+	bool in = false;
+
+	if (book == TAS2781_YRAM_BOOK1 || book == TAS2781_YRAM_BOOK2)
+		in = check_inblock_yram_bk(cd, page, reg, len);
+
+	return in;
+}
+
+static bool check_yram(struct tas_crc *cd, unsigned char book,
+	unsigned char page, unsigned char reg, unsigned char len)
+{
+	bool in;
+
+	in = check_inpage_yram(cd, book, page, reg, len);
+	if (in)
+		goto end;
+	in = check_inblock_yram(cd, book, page, reg, len);
+
+end:
+	return in;
+}
+
+static int tasdev_multibytes_chksum(struct tasdevice_priv *tasdevice,
+	enum channel chn, unsigned char book, unsigned char page,
+	unsigned char reg, unsigned int len)
+{
+	struct tas_crc crc_data;
+	unsigned char crc_chksum = 0;
+	unsigned char nBuf1[128];
+	int ret = 0;
+	int i;
+	bool in;
+
+	if ((reg + len - 1) > 127) {
+		ret = -EINVAL;
+		dev_err(tasdevice->dev, "firmware error\n");
+		goto end;
+	}
+
+	if ((book == TASDEVICE_BOOK_ID(TAS2781_SA_COEFF_SWAP_REG))
+		&& (page == TASDEVICE_PAGE_ID(TAS2781_SA_COEFF_SWAP_REG))
+		&& (reg == TASDEVICE_PAGE_REG(TAS2781_SA_COEFF_SWAP_REG))
+		&& (len == 4)) {
+		/*DSP swap command, pass */
+		ret = 0;
+		goto end;
+	}
+
+	in = check_yram(&crc_data, book, page, reg, len);
+	if (!in)
+		goto end;
+
+	if (len == 1) {
+		dev_err(tasdevice->dev, "firmware error\n");
+		ret = -EINVAL;
+		goto end;
+	}
+
+	ret = tasdevice_dev_bulk_read(tasdevice, chn,
+		TASDEVICE_REG(book, page, crc_data.offset),
+		nBuf1, crc_data.len);
+	if (ret < 0)
+		goto end;
+
+	for (i = 0; i < crc_data.len; i++) {
+		if ((book == TASDEVICE_BOOK_ID(TAS2781_SA_COEFF_SWAP_REG))
+			&& (page == TASDEVICE_PAGE_ID(
+			TAS2781_SA_COEFF_SWAP_REG))
+			&& ((i + crc_data.offset)
+			>= TASDEVICE_PAGE_REG(TAS2781_SA_COEFF_SWAP_REG))
+			&& ((i + crc_data.offset)
+			<= (TASDEVICE_PAGE_REG(TAS2781_SA_COEFF_SWAP_REG)
+			+ 4)))
+			/*DSP swap command, bypass */
+			continue;
+		else
+			crc_chksum += crc8(tasdevice->crc8_lkp_tbl, &nBuf1[i],
+				1, 0);
+	}
+
+	ret = crc_chksum;
+
+end:
+	return ret;
+}
+
+static int do_singlereg_checksum(struct tasdevice_priv *tasdevice,
+	enum channel chl, unsigned char book, unsigned char page,
+	unsigned char reg, unsigned char val)
+{
+	struct tas_crc crc_data;
+	unsigned int nData1;
+	int ret = 0;
+	bool in;
+
+	if ((book == TASDEVICE_BOOK_ID(TAS2781_SA_COEFF_SWAP_REG))
+		&& (page == TASDEVICE_PAGE_ID(TAS2781_SA_COEFF_SWAP_REG))
+		&& (reg >= TASDEVICE_PAGE_REG(TAS2781_SA_COEFF_SWAP_REG))
+		&& (reg <= (TASDEVICE_PAGE_REG(
+		TAS2781_SA_COEFF_SWAP_REG) + 4))) {
+		/*DSP swap command, pass */
+		ret = 0;
+		goto end;
+	}
+
+	in = check_yram(&crc_data, book, page, reg, 1);
+	if (!in)
+		goto end;
+	ret = tasdevice_dev_read(tasdevice, chl,
+		TASDEVICE_REG(book, page, reg), &nData1);
+	if (ret < 0)
+		goto end;
+
+	if (nData1 != val) {
+		dev_err(tasdevice->dev,
+			"B[0x%x]P[0x%x]R[0x%x] W[0x%x], R[0x%x]\n",
+			book, page, reg, val, nData1);
+		tasdevice->tasdevice[chl].err_code |= ERROR_YRAM_CRCCHK;
+		ret = -EAGAIN;
+		goto end;
+	}
+
+	ret = crc8(tasdevice->crc8_lkp_tbl, &val, 1, 0);
+
+end:
+	return ret;
+}
+
+static void set_err_prg_cfg(unsigned int type, struct tasdevice *dev)
+{
+	if ((type == MAIN_ALL_DEVICES) || (type == MAIN_DEVICE_A)
+		|| (type == MAIN_DEVICE_B) || (type == MAIN_DEVICE_C)
+		|| (type == MAIN_DEVICE_D))
+		dev->cur_prog = -1;
+	else
+		dev->cur_conf = -1;
+}
+
+static int tasdev_bytes_chksum(struct tasdevice_priv *tas_priv,
+	struct tasdev_blk *block, int chn, unsigned char book,
+	unsigned char page, unsigned char reg, unsigned int len,
+	unsigned char val, unsigned char *crc_chksum)
+{
+	int ret;
+
+	if (len > 1)
+		ret = tasdev_multibytes_chksum(tas_priv, chn, book, page, reg,
+			len);
+	else
+		ret = do_singlereg_checksum(tas_priv, chn, book, page, reg,
+			val);
+
+	if (ret > 0) {
+		*crc_chksum += (unsigned char)ret;
+		goto end;
+	}
+
+	if (ret != -EAGAIN)
+		goto end;
+
+	block->nr_retry--;
+	if (block->nr_retry > 0)
+		goto end;
+
+	set_err_prg_cfg(block->type, &tas_priv->tasdevice[chn]);
+
+end:
+	return ret;
+}
+
+static int tasdev_multibytes_wr(struct tasdevice_priv *tas_priv,
+	struct tasdev_blk *block, int chn, unsigned char book,
+	unsigned char page, unsigned char reg, unsigned char *data,
+	unsigned int len, unsigned int *nr_cmds,
+	unsigned char *crc_chksum)
+{
+	int ret;
+
+	if (len > 1) {
+		ret = tasdevice_dev_bulk_write(tas_priv, chn,
+			TASDEVICE_REG(book, page, reg), data + 3, len);
+		if (ret < 0)
+			goto end;
+		if (block->is_ychksum_present)
+			ret = tasdev_bytes_chksum(tas_priv, block, chn,
+				book, page, reg, len, 0, crc_chksum);
+	} else {
+		ret = tasdevice_dev_write(tas_priv, chn,
+			TASDEVICE_REG(book, page, reg), data[3]);
+		if (ret < 0)
+			goto end;
+		if (block->is_ychksum_present)
+			ret = tasdev_bytes_chksum(tas_priv, block, chn, book,
+				page, reg, 1, data[3], crc_chksum);
+	}
+
+	if (!block->is_ychksum_present || ret >= 0) {
+		*nr_cmds += 1;
+		if (len >= 2)
+			*nr_cmds += ((len - 2) / 4) + 1;
+	}
+
+end:
+	return ret;
+}
+
+static int tasdev_block_chksum(struct tasdevice_priv *tas_priv,
+	struct tasdev_blk *block, int chn)
+{
+	unsigned int nr_value;
+	int ret;
+
+	ret = tasdevice_dev_read(tas_priv, chn, TASDEVICE_I2CChecksum,
+		&nr_value);
+	if (ret < 0) {
+		dev_err(tas_priv->dev, "%s: Chn %d\n", __func__, chn);
+		set_err_prg_cfg(block->type, &tas_priv->tasdevice[chn]);
+		goto end;
+	}
+
+	if ((nr_value & 0xff) != block->pchksum) {
+		dev_err(tas_priv->dev, "%s: Blk PChkSum Chn %d ", __func__,
+			chn);
+		dev_err(tas_priv->dev, "PChkSum = 0x%x, Reg = 0x%x\n",
+			block->pchksum, (nr_value & 0xff));
+		tas_priv->tasdevice[chn].err_code |= ERROR_PRAM_CRCCHK;
+		ret = -EAGAIN;
+		block->nr_retry--;
+
+		if (block->nr_retry <= 0)
+			set_err_prg_cfg(block->type,
+				&tas_priv->tasdevice[chn]);
+	} else
+		tas_priv->tasdevice[chn].err_code &= ~ERROR_PRAM_CRCCHK;
+
+end:
+	return ret;
+}
+
+static int tasdev_load_blk(struct tasdevice_priv *tas_priv,
+	struct tasdev_blk *block, int chn)
+{
+	unsigned int sleep_time;
+	unsigned int len;
+	unsigned int nr_cmds;
+	unsigned char *data = block->data;
+	unsigned char crc_chksum = 0;
+	unsigned char offset;
+	unsigned char book;
+	unsigned char page;
+	unsigned char val;
+	int ret = 0;
+
+	while (block->nr_retry > 0) {
+		if (block->is_pchksum_present) {
+			ret = tasdevice_dev_write(tas_priv, chn,
+				TASDEVICE_I2CChecksum, 0);
+			if (ret < 0)
+				break;
+		}
+
+		if (block->is_ychksum_present)
+			crc_chksum = 0;
+
+		nr_cmds = 0;
+
+		while (nr_cmds < block->nr_cmds) {
+			data = block->data + nr_cmds * 4;
+
+			book = data[0];
+			page = data[1];
+			offset = data[2];
+			val = data[3];
+
+			nr_cmds++;
+			/*Single byte write*/
+			if (offset <= 0x7F) {
+				ret = tasdevice_dev_write(tas_priv, chn,
+					TASDEVICE_REG(book, page, offset),
+					val);
+				if (ret < 0)
+					goto end;
+				if (block->is_ychksum_present) {
+					ret = tasdev_bytes_chksum(tas_priv,
+						block, chn, book, page, offset,
+						1, val, &crc_chksum);
+					if (ret < 0)
+						break;
+				}
+				continue;
+			}
+			/*sleep command*/
+			if (offset == 0x81) {
+				/*book -- data[0] page -- data[1]*/
+				sleep_time = ((book << 8) + page)*1000;
+				usleep_range(sleep_time, sleep_time + 50);
+				continue;
+			}
+			/*Multiple bytes write*/
+			if (offset == 0x85) {
+				data += 4;
+				len = (book << 8) + page;
+				book = data[0];
+				page = data[1];
+				offset = data[2];
+				ret = tasdev_multibytes_wr(tas_priv,
+					block, chn, book, page, offset, data,
+					len, &nr_cmds, &crc_chksum);
+				if (ret < 0)
+					break;
+			}
+		}
+		if (ret == -EAGAIN) {
+			if (block->nr_retry > 0)
+				continue;
+		} else if (ret < 0) /*err in current device, skip it*/
+			break;
+
+		if (block->is_pchksum_present) {
+			ret = tasdev_block_chksum(tas_priv, block, chn);
+			if (ret == -EAGAIN) {
+				if (block->nr_retry > 0)
+					continue;
+			} else if (ret < 0) /*err in current device, skip it*/
+				break;
+		}
+
+		if (block->is_ychksum_present) {
+			/* TBD, open it when FW ready */
+			dev_err(tas_priv->dev,
+				"Blk YChkSum: FW = 0x%x, YCRC = 0x%x\n",
+				block->ychksum, crc_chksum);
+
+			tas_priv->tasdevice[chn].err_code &=
+				~ERROR_YRAM_CRCCHK;
+			ret = 0;
+		}
+		/*skip current blk*/
+		break;
+	}
+
+end:
+	return ret;
+}
+
+static int tasdevice_load_block(struct tasdevice_priv *tas_priv,
+	struct tasdev_blk *block)
+{
+	int chnend = 0;
+	int ret = 0;
+	int chn = 0;
+	int rc = 0;
+
+	switch (block->type) {
+	case MAIN_ALL_DEVICES:
+		chn = 0;
+		chnend = tas_priv->ndev;
+		break;
+	case MAIN_DEVICE_A:
+	case COEFF_DEVICE_A:
+	case PRE_DEVICE_A:
+		chn = 0;
+		chnend = 1;
+		break;
+	case MAIN_DEVICE_B:
+	case COEFF_DEVICE_B:
+	case PRE_DEVICE_B:
+		chn = 1;
+		chnend = 2;
+		break;
+	case MAIN_DEVICE_C:
+	case COEFF_DEVICE_C:
+	case PRE_DEVICE_C:
+		chn = 2;
+		chnend = 3;
+		break;
+	case MAIN_DEVICE_D:
+	case COEFF_DEVICE_D:
+	case PRE_DEVICE_D:
+		chn = 3;
+		chnend = 4;
+		break;
+	default:
+		dev_dbg(tas_priv->dev, "load blk: Other Type = 0x%02x\n",
+			block->type);
+		break;
+	}
+
+	for (; chn < chnend; chn++) {
+		block->nr_retry = 6;
+		if (tas_priv->tasdevice[chn].is_loading == false)
+			continue;
+		ret = tasdev_load_blk(tas_priv, block, chn);
+		if (ret < 0)
+			dev_err(tas_priv->dev, "dev %d, Blk (%d) load error\n",
+				chn, block->type);
+		rc |= ret;
+	}
+
+	return rc;
+}
+
+static int dspfw_default_callback(struct tasdevice_priv *tas_priv,
+	unsigned int drv_ver, unsigned int ppcver)
+{
+	int rc = 0;
+
+	if (drv_ver == 0x100) {
+		if (ppcver >= PPC3_VERSION) {
+			tas_priv->fw_parse_variable_header =
+				fw_parse_variable_header_kernel;
+			tas_priv->fw_parse_program_data =
+				fw_parse_program_data_kernel;
+			tas_priv->fw_parse_configuration_data =
+				fw_parse_configuration_data_kernel;
+			tas_priv->tasdevice_load_block =
+				tasdevice_load_block_kernel;
+		} else {
+			switch (ppcver) {
+			case 0x00:
+				tas_priv->fw_parse_variable_header =
+					fw_parse_variable_header_git;
+				tas_priv->fw_parse_program_data =
+					fw_parse_program_data;
+				tas_priv->fw_parse_configuration_data =
+					fw_parse_configuration_data;
+				tas_priv->tasdevice_load_block =
+					tasdevice_load_block;
+				break;
+			default:
+				dev_err(tas_priv->dev,
+					"%s: PPCVer must be 0x0 or 0x%02x",
+					__func__, PPC3_VERSION);
+				dev_err(tas_priv->dev, " Current:0x%02x\n",
+					ppcver);
+				rc = -EINVAL;
+				break;
+			}
+		}
+	} else {
+		dev_err(tas_priv->dev,
+			"DrvVer must be 0x0, 0x230 or above 0x230 ");
+		dev_err(tas_priv->dev, "current is 0x%02x\n", drv_ver);
+		rc = -EINVAL;
+	}
+
+	return rc;
+}
+
+static int load_calib_data(struct tasdevice_priv *tas_priv,
+	struct tasdevice_data *dev_data)
+{
+	struct tasdev_blk *block;
+	unsigned int i;
+	int ret = 0;
+
+	for (i = 0; i < dev_data->nr_blk; i++) {
+		block = &(dev_data->dev_blks[i]);
+		ret = tasdevice_load_block(tas_priv, block);
+		if (ret < 0)
+			break;
+	}
+
+	return ret;
+}
+
+static int fw_parse_header(struct tasdevice_priv *tas_priv,
+	struct tasdevice_fw *tas_fmw, const struct firmware *fmw, int offset)
+{
+	struct tasdevice_dspfw_hdr *fw_hdr = &(tas_fmw->fw_hdr);
+	struct tasdevice_fw_fixed_hdr *fw_fixed_hdr = &(fw_hdr->fixed_hdr);
+	const unsigned char magic_number[] = { 0x35, 0x35, 0x35, 0x32 };
+	const unsigned char *buf = (unsigned char *)fmw->data;
+
+	if (offset + 92 > fmw->size) {
+		dev_err(tas_priv->dev, "%s: File Size error\n", __func__);
+		offset = -EINVAL;
+		goto out;
+	}
+	if (memcmp(&buf[offset], magic_number, 4)) {
+		dev_err(tas_priv->dev, "%s: Magic num NOT match\n", __func__);
+		offset = -EINVAL;
+		goto out;
+	}
+	offset += 4;
+
+	/* Convert data[offset], data[offset + 1], data[offset + 2] and
+	 * data[offset + 3] into host
+	 */
+	fw_fixed_hdr->fwsize = be32_to_cpup((__be32 *)&buf[offset]);
+	offset += 4;
+	if (fw_fixed_hdr->fwsize != fmw->size) {
+		dev_err(tas_priv->dev, "File size not match, %lu %u",
+			(unsigned long)fmw->size, fw_fixed_hdr->fwsize);
+		offset = -EINVAL;
+		goto out;
+	}
+	offset += 4;
+	fw_fixed_hdr->ppcver = be32_to_cpup((__be32 *)&buf[offset]);
+	offset += 8;
+	fw_fixed_hdr->drv_ver = be32_to_cpup((__be32 *)&buf[offset]);
+	offset += 72;
+
+ out:
+	return offset;
+}
+
+static int fw_parse_variable_hdr_cal(struct tasdevice_priv *tas_priv,
+	struct tasdevice_fw *tas_fmw, const struct firmware *fmw, int offset)
+{
+	struct tasdevice_dspfw_hdr *fw_hdr = &(tas_fmw->fw_hdr);
+
+	offset = fw_parse_variable_hdr(tas_priv, fw_hdr, fmw, offset);
+	if (offset < 0)
+		goto out;
+	if (fw_hdr->ndev != 1) {
+		dev_err(tas_priv->dev,
+			"%s: calbin must be 1, but currently ndev(%u)\n",
+			__func__, fw_hdr->ndev);
+		offset = -EINVAL;
+	}
+
+out:
+	return offset;
+}
+
+/* When calibrated data parsing error occurs, DSP can still work with default
+ * calibrated data, memory resource related to calibrated data will be
+ * released in the tasdevice_codec_remove.
+ */
+static int fw_parse_calibration_data(struct tasdevice_priv *tas_priv,
+	struct tasdevice_fw *tas_fmw, const struct firmware *fmw, int offset)
+{
+	struct tasdevice_calibration *calibration;
+	unsigned char *data = (unsigned char *)fmw->data;
+	unsigned int i, n;
+
+	if (offset + 2 > fmw->size) {
+		dev_err(tas_priv->dev, "%s: Calibrations error\n", __func__);
+		offset = -EINVAL;
+		goto out;
+	}
+	tas_fmw->nr_calibrations = be16_to_cpup((__be16 *)&data[offset]);
+	offset += 2;
+
+	if (tas_fmw->nr_calibrations != 1) {
+		dev_err(tas_priv->dev,
+			"%s: only support one calibraiton(%d)!\n",
+			__func__, tas_fmw->nr_calibrations);
+		goto out;
+	}
+
+	tas_fmw->calibrations = kcalloc(tas_fmw->nr_calibrations,
+		sizeof(struct tasdevice_calibration), GFP_KERNEL);
+	if (!tas_fmw->calibrations) {
+		offset = -ENOMEM;
+		goto out;
+	}
+	for (i = 0; i < tas_fmw->nr_calibrations; i++) {
+		if (offset + 64 > fmw->size) {
+			dev_err(tas_priv->dev, "Calibrations error\n");
+			offset = -EINVAL;
+			goto out;
+		}
+		calibration = &(tas_fmw->calibrations[i]);
+		offset += 64;
+
+		n = strlen((char *)&data[offset]);
+		/* skip '\0' and 2 unused bytes */
+		n += 3;
+		if (offset + n > fmw->size) {
+			dev_err(tas_priv->dev, "Description err\n");
+			offset = -EINVAL;
+			goto out;
+		}
+		offset += n;
+
+		offset = fw_parse_data(tas_fmw, &(calibration->dev_data), fmw,
+			offset);
+		if (offset < 0)
+			goto out;
+	}
+
+out:
+	return offset;
+}
+
+int tas2781_load_calibration(void *context, char *file_name,
+	enum channel i)
+{
+	struct tasdevice_priv *tas_priv = (struct tasdevice_priv *)context;
+	struct tasdevice *tasdev = &(tas_priv->tasdevice[i]);
+	const struct firmware *fw_entry;
+	struct tasdevice_fw *tas_fmw;
+	struct firmware fmw;
+	int offset = 0;
+	int ret;
+
+	ret = request_firmware(&fw_entry, file_name, tas_priv->dev);
+	if (ret) {
+		dev_info(tas_priv->dev, "%s: Request firmware %s failed\n",
+			__func__, file_name);
+		goto out;
+	}
+
+	if (!fw_entry->size) {
+		dev_err(tas_priv->dev, "%s: file read error: size = %lu\n",
+			__func__, (unsigned long)fw_entry->size);
+		goto out;
+	}
+	fmw.size = fw_entry->size;
+	fmw.data = fw_entry->data;
+
+	tas_fmw = tasdev->cali_data_fmw = kzalloc(sizeof(struct tasdevice_fw),
+		GFP_KERNEL);
+	if (!tasdev->cali_data_fmw) {
+		ret = -ENOMEM;
+		goto out;
+	}
+	tas_fmw->dev = tas_priv->dev;
+	offset = fw_parse_header(tas_priv, tas_fmw, &fmw, offset);
+	if (offset == -EINVAL) {
+		dev_err(tas_priv->dev, "fw_parse_header EXIT!\n");
+		ret = offset;
+		goto out;
+	}
+	offset = fw_parse_variable_hdr_cal(tas_priv, tas_fmw, &fmw, offset);
+	if (offset == -EINVAL) {
+		dev_err(tas_priv->dev,
+			"%s: fw_parse_variable_header_cal EXIT!\n", __func__);
+		ret = offset;
+		goto out;
+	}
+	offset = fw_parse_program_data(tas_priv, tas_fmw, &fmw, offset);
+	if (offset < 0) {
+		dev_err(tas_priv->dev, "fw_parse_program_data EXIT!\n");
+		ret = offset;
+		goto out;
+	}
+	offset = fw_parse_configuration_data(tas_priv, tas_fmw, &fmw, offset);
+	if (offset < 0) {
+		dev_err(tas_priv->dev, "fw_parse_configuration_data EXIT!\n");
+		ret = offset;
+		goto out;
+	}
+	offset = fw_parse_calibration_data(tas_priv, tas_fmw, &fmw, offset);
+	if (offset < 0) {
+		dev_err(tas_priv->dev, "fw_parse_calibration_data EXIT!\n");
+		ret = offset;
+		goto out;
+	}
+
+out:
+	if (fw_entry)
+		release_firmware(fw_entry);
+
+	return ret;
+}
+EXPORT_SYMBOL_NS_GPL(tas2781_load_calibration, SND_SOC_TAS2781_FMWLIB);
+
+static int tasdevice_dspfw_ready(const struct firmware *fmw,
+	void *context)
+{
+	struct tasdevice_priv *tas_priv = (struct tasdevice_priv *) context;
+	struct tasdevice_fw_fixed_hdr *fw_fixed_hdr;
+	struct tasdevice_fw *tas_fmw;
+	int offset = 0;
+	int ret = 0;
+
+	if (!fmw || !fmw->data) {
+		dev_err(tas_priv->dev, "%s: Failed to read firmware %s\n",
+			__func__, tas_priv->coef_binaryname);
+		ret = -EINVAL;
+		goto out;
+	}
+
+	tas_priv->fmw = kzalloc(sizeof(struct tasdevice_fw), GFP_KERNEL);
+	if (!tas_priv->fmw) {
+		ret = -ENOMEM;
+		goto out;
+	}
+	tas_fmw = tas_priv->fmw;
+	tas_fmw->dev = tas_priv->dev;
+	offset = fw_parse_header(tas_priv, tas_fmw, fmw, offset);
+
+	if (offset == -EINVAL) {
+		ret = -EINVAL;
+		goto out;
+	}
+	fw_fixed_hdr = &(tas_fmw->fw_hdr.fixed_hdr);
+	/* Support different versions of firmware */
+	switch (fw_fixed_hdr->drv_ver) {
+	case 0x301:
+	case 0x302:
+	case 0x502:
+		tas_priv->fw_parse_variable_header =
+			fw_parse_variable_header_kernel;
+		tas_priv->fw_parse_program_data =
+			fw_parse_program_data_kernel;
+		tas_priv->fw_parse_configuration_data =
+			fw_parse_configuration_data_kernel;
+		tas_priv->tasdevice_load_block =
+			tasdevice_load_block_kernel;
+		break;
+	case 0x202:
+	case 0x400:
+		tas_priv->fw_parse_variable_header =
+			fw_parse_variable_header_git;
+		tas_priv->fw_parse_program_data =
+			fw_parse_program_data;
+		tas_priv->fw_parse_configuration_data =
+			fw_parse_configuration_data;
+		tas_priv->tasdevice_load_block =
+			tasdevice_load_block;
+		break;
+	default:
+		ret = dspfw_default_callback(tas_priv,
+			fw_fixed_hdr->drv_ver, fw_fixed_hdr->ppcver);
+		if (ret)
+			goto out;
+		break;
+	}
+
+	offset = tas_priv->fw_parse_variable_header(tas_priv, fmw, offset);
+	if (offset < 0) {
+		ret = offset;
+		goto out;
+	}
+	offset = tas_priv->fw_parse_program_data(tas_priv, tas_fmw, fmw,
+		offset);
+	if (offset < 0) {
+		ret = offset;
+		goto out;
+	}
+	offset = tas_priv->fw_parse_configuration_data(tas_priv,
+		tas_fmw, fmw, offset);
+	if (offset < 0)
+		ret = offset;
+
+out:
+	return ret;
+}
+
+int tasdevice_dsp_parser(void *context)
+{
+	struct tasdevice_priv *tas_priv = (struct tasdevice_priv *)context;
+	const struct firmware *fw_entry;
+	int ret;
+
+	ret = request_firmware(&fw_entry, tas_priv->coef_binaryname,
+		tas_priv->dev);
+	if (ret) {
+		dev_err(tas_priv->dev, "%s: load %s error\n", __func__,
+			tas_priv->coef_binaryname);
+		goto out;
+	}
+
+	ret = tasdevice_dspfw_ready(fw_entry, tas_priv);
+	release_firmware(fw_entry);
+	fw_entry = NULL;
+
+out:
+	return ret;
+}
+EXPORT_SYMBOL_NS_GPL(tasdevice_dsp_parser, SND_SOC_TAS2781_FMWLIB);
+
+static void tas2781_clear_calfirmware(struct tasdevice_fw *tas_fmw)
+{
+	struct tasdevice_calibration *calibration;
+	struct tasdev_blk *block;
+	struct tasdevice_data *im;
+	unsigned int blks;
+	int i;
+
+	if (!tas_fmw->calibrations)
+		goto out;
+
+	for (i = 0; i < tas_fmw->nr_calibrations; i++) {
+		calibration = &(tas_fmw->calibrations[i]);
+		if (!calibration)
+			continue;
+
+		im = &(calibration->dev_data);
+
+		if (!im->dev_blks)
+			continue;
+
+		for (blks = 0; blks < im->nr_blk; blks++) {
+			block = &(im->dev_blks[blks]);
+			if (!block)
+				continue;
+			kfree(block->data);
+		}
+		kfree(im->dev_blks);
+	}
+	kfree(tas_fmw->calibrations);
+out:
+	kfree(tas_fmw);
+}
+
+void tasdevice_calbin_remove(void *context)
+{
+	struct tasdevice_priv *tas_priv = (struct tasdevice_priv *) context;
+	struct tasdevice *tasdev;
+	int i;
+
+	if (!tas_priv)
+		return;
+
+	for (i = 0; i < tas_priv->ndev; i++) {
+		tasdev = &(tas_priv->tasdevice[i]);
+		if (!tasdev->cali_data_fmw)
+			continue;
+		tas2781_clear_calfirmware(tasdev->cali_data_fmw);
+		tasdev->cali_data_fmw = NULL;
+	}
+}
+EXPORT_SYMBOL_NS_GPL(tasdevice_calbin_remove, SND_SOC_TAS2781_FMWLIB);
+
+void tasdevice_config_info_remove(void *context)
+{
+	struct tasdevice_priv *tas_priv = (struct tasdevice_priv *) context;
+	struct tasdevice_rca *rca = &(tas_priv->rcabin);
+	struct tasdevice_config_info **ci = rca->cfg_info;
+	int i, j;
+
+	if (!ci)
+		return;
+	for (i = 0; i < rca->ncfgs; i++) {
+		if (!ci[i])
+			continue;
+		if (ci[i]->blk_data) {
+			for (j = 0; j < (int)ci[i]->real_nblocks; j++) {
+				if (!ci[i]->blk_data[j])
+					continue;
+				kfree(ci[i]->blk_data[j]->regdata);
+				kfree(ci[i]->blk_data[j]);
+			}
+			kfree(ci[i]->blk_data);
+		}
+		kfree(ci[i]);
+	}
+	kfree(ci);
+}
+EXPORT_SYMBOL_NS_GPL(tasdevice_config_info_remove, SND_SOC_TAS2781_FMWLIB);
+
+static int tasdevice_load_data(struct tasdevice_priv *tas_priv,
+	struct tasdevice_data *dev_data)
+{
+	struct tasdev_blk *block;
+	unsigned int i;
+	int ret = 0;
+
+	for (i = 0; i < dev_data->nr_blk; i++) {
+		block = &(dev_data->dev_blks[i]);
+		ret = tas_priv->tasdevice_load_block(tas_priv, block);
+		if (ret < 0)
+			break;
+	}
+
+	return ret;
+}
+
+int tasdevice_select_tuningprm_cfg(void *context, int prm_no,
+	int cfg_no, int rca_conf_no)
+{
+	struct tasdevice_priv *tas_priv = (struct tasdevice_priv *) context;
+	struct tasdevice_rca *rca = &(tas_priv->rcabin);
+	struct tasdevice_config_info **cfg_info = rca->cfg_info;
+	struct tasdevice_fw *tas_fmw = tas_priv->fmw;
+	struct tasdevice_prog *program;
+	struct tasdevice_config *conf;
+	int prog_status = 0;
+	int status, i;
+
+	if (!tas_fmw) {
+		dev_err(tas_priv->dev, "%s: Firmware is NULL\n", __func__);
+		goto out;
+	}
+
+	if (cfg_no >= tas_fmw->nr_configurations) {
+		dev_err(tas_priv->dev,
+			"%s: cfg(%d) is not in range of conf %u\n",
+			__func__, cfg_no, tas_fmw->nr_configurations);
+		goto out;
+	}
+
+	if (prm_no >= tas_fmw->nr_programs) {
+		dev_err(tas_priv->dev,
+			"%s: prm(%d) is not in range of Programs %u\n",
+			__func__, prm_no, tas_fmw->nr_programs);
+		goto out;
+	}
+
+	if (rca_conf_no > rca->ncfgs || rca_conf_no <= 0 ||
+		!cfg_info) {
+		dev_err(tas_priv->dev,
+			"conf_no:%d should be in range from 0 to %u\n",
+			rca_conf_no, rca->ncfgs-1);
+		goto out;
+	}
+
+	conf = &(tas_fmw->configs[cfg_no]);
+	for (i = 0, prog_status = 0; i < tas_priv->ndev; i++) {
+		if (cfg_info[rca_conf_no]->active_dev & (1 << i)) {
+			if (tas_priv->tasdevice[i].cur_prog != prm_no) {
+				tas_priv->tasdevice[i].cur_conf = -1;
+				tas_priv->tasdevice[i].is_loading = true;
+				prog_status++;
+			}
+		} else
+			tas_priv->tasdevice[i].is_loading = false;
+		tas_priv->tasdevice[i].is_loaderr = false;
+	}
+
+	if (prog_status) {
+		program = &(tas_fmw->programs[prm_no]);
+		tasdevice_load_data(tas_priv, &(program->dev_data));
+		for (i = 0; i < tas_priv->ndev; i++) {
+			if (tas_priv->tasdevice[i].is_loaderr == true)
+				continue;
+			else if (tas_priv->tasdevice[i].is_loaderr == false
+				&& tas_priv->tasdevice[i].is_loading == true) {
+				struct tasdevice_fw *cal_fmw =
+					tas_priv->tasdevice[i].cali_data_fmw;
+
+				if (cal_fmw) {
+					struct tasdevice_calibration
+						*cal = cal_fmw->calibrations;
+
+					if (cal)
+						load_calib_data(tas_priv,
+							&(cal->dev_data));
+				}
+				tas_priv->tasdevice[i].cur_prog = prm_no;
+			}
+		}
+	}
+
+	for (i = 0, status = 0; i < tas_priv->ndev; i++) {
+		if (tas_priv->tasdevice[i].cur_conf != cfg_no
+			&& (cfg_info[rca_conf_no]->active_dev & (1 << i))
+			&& (tas_priv->tasdevice[i].is_loaderr == false)) {
+			status++;
+			tas_priv->tasdevice[i].is_loading = true;
+		} else
+			tas_priv->tasdevice[i].is_loading = false;
+	}
+
+	if (status) {
+		status = 0;
+		tasdevice_load_data(tas_priv, &(conf->dev_data));
+		for (i = 0; i < tas_priv->ndev; i++) {
+			if (tas_priv->tasdevice[i].is_loaderr == true) {
+				status |= 1 << (i + 4);
+				continue;
+			} else if (tas_priv->tasdevice[i].is_loaderr == false
+				&& tas_priv->tasdevice[i].is_loading == true)
+				tas_priv->tasdevice[i].cur_conf = cfg_no;
+		}
+	} else
+		dev_err(tas_priv->dev,
+			"%s: No device is in active in conf %d\n",
+			__func__, rca_conf_no);
+
+	status |= cfg_info[rca_conf_no]->active_dev;
+
+out:
+	return prog_status;
+}
+EXPORT_SYMBOL_NS_GPL(tasdevice_select_tuningprm_cfg,
+	SND_SOC_TAS2781_FMWLIB);
+
+int tasdevice_prmg_load(void *context, int prm_no)
+{
+	struct tasdevice_priv *tas_priv = (struct tasdevice_priv *) context;
+	struct tasdevice_fw *tas_fmw = tas_priv->fmw;
+	struct tasdevice_prog *program;
+	int prog_status = 0;
+	int i;
+
+	if (!tas_fmw) {
+		dev_err(tas_priv->dev, "%s: Firmware is NULL\n", __func__);
+		goto out;
+	}
+
+	if (prm_no >= tas_fmw->nr_programs) {
+		dev_err(tas_priv->dev,
+			"%s: prm(%d) is not in range of Programs %u\n",
+			__func__, prm_no, tas_fmw->nr_programs);
+		goto out;
+	}
+
+	for (i = 0, prog_status = 0; i < tas_priv->ndev; i++) {
+		if (tas_priv->tasdevice[i].cur_prog != prm_no) {
+			tas_priv->tasdevice[i].cur_conf = -1;
+			tas_priv->tasdevice[i].is_loading = true;
+			prog_status++;
+		}
+	}
+
+	if (prog_status) {
+		program = &(tas_fmw->programs[prm_no]);
+		tasdevice_load_data(tas_priv, &(program->dev_data));
+		for (i = 0; i < tas_priv->ndev; i++) {
+			if (tas_priv->tasdevice[i].is_loaderr == true)
+				continue;
+			else if (tas_priv->tasdevice[i].is_loaderr == false
+				&& tas_priv->tasdevice[i].is_loading == true)
+				tas_priv->tasdevice[i].cur_prog = prm_no;
+		}
+	}
+	if (tas_priv->set_global_mode)
+		tas_priv->set_global_mode(tas_priv);
+out:
+	return prog_status;
+}
+EXPORT_SYMBOL_NS_GPL(tasdevice_prmg_load, SND_SOC_TAS2781_FMWLIB);
+
+int tasdevice_prmg_calibdata_load(void *context, int prm_no)
+{
+	struct tasdevice_priv *tas_priv = (struct tasdevice_priv *) context;
+	struct tasdevice_fw *tas_fmw = tas_priv->fmw;
+	struct tasdevice_prog *program;
+	int prog_status = 0;
+	int i;
+
+	if (!tas_fmw) {
+		dev_err(tas_priv->dev, "%s: Firmware is NULL\n", __func__);
+		goto out;
+	}
+
+	if (prm_no >= tas_fmw->nr_programs) {
+		dev_err(tas_priv->dev,
+			"%s: prm(%d) is not in range of Programs %u\n",
+			__func__, prm_no, tas_fmw->nr_programs);
+		goto out;
+	}
+
+	for (i = 0, prog_status = 0; i < tas_priv->ndev; i++) {
+		if (tas_priv->tasdevice[i].cur_prog != prm_no) {
+			tas_priv->tasdevice[i].cur_conf = -1;
+			tas_priv->tasdevice[i].is_loading = true;
+			prog_status++;
+		}
+		tas_priv->tasdevice[i].is_loaderr = false;
+	}
+
+	if (prog_status) {
+		program = &(tas_fmw->programs[prm_no]);
+		tasdevice_load_data(tas_priv, &(program->dev_data));
+		for (i = 0; i < tas_priv->ndev; i++) {
+			if (tas_priv->tasdevice[i].is_loaderr == true)
+				continue;
+			else if (tas_priv->tasdevice[i].is_loaderr == false
+				&& tas_priv->tasdevice[i].is_loading == true) {
+				struct tasdevice_fw *cal_fmw =
+					tas_priv->tasdevice[i].cali_data_fmw;
+
+				if (cal_fmw) {
+					struct tasdevice_calibration *cal =
+						cal_fmw->calibrations;
+
+					if (cal)
+						load_calib_data(tas_priv,
+							&(cal->dev_data));
+				}
+				tas_priv->tasdevice[i].cur_prog = prm_no;
+			}
+		}
+	}
+
+out:
+	return prog_status;
+}
+EXPORT_SYMBOL_NS_GPL(tasdevice_prmg_calibdata_load,
+	SND_SOC_TAS2781_FMWLIB);
+
+void tasdevice_tuning_switch(void *context, int state)
+{
+	struct tasdevice_priv *tas_priv = (struct tasdevice_priv *) context;
+	struct tasdevice_fw *tas_fmw = tas_priv->fmw;
+	int profile_cfg_id = 0;
+
+	if (tas_priv->fw_state == TASDEVICE_DSP_FW_FAIL) {
+		dev_err(tas_priv->dev, "DSP bin file not loaded\n");
+		return;
+	}
+
+	if (state == 0) {
+		if (tas_priv->cur_prog >= tas_fmw->nr_programs)
+			/*bypass all in rca is profile id 0*/
+			profile_cfg_id = RCA_CONFIGID_BYPASS_ALL;
+		else {
+			/*dsp mode or tuning mode*/
+			profile_cfg_id = tas_priv->rcabin.profile_cfg_id;
+			tasdevice_select_tuningprm_cfg(tas_priv,
+				tas_priv->cur_prog, tas_priv->cur_conf,
+				profile_cfg_id);
+			if (tas_priv->set_global_mode)
+				tas_priv->set_global_mode(tas_priv);
+		}
+
+		tasdevice_select_cfg_blk(tas_priv, profile_cfg_id,
+			TASDEVICE_BIN_BLK_PRE_POWER_UP);
+	} else
+		tasdevice_select_cfg_blk(tas_priv,
+			tas_priv->rcabin.profile_cfg_id,
+			TASDEVICE_BIN_BLK_PRE_SHUTDOWN);
+}
+EXPORT_SYMBOL_NS_GPL(tasdevice_tuning_switch,
+	SND_SOC_TAS2781_FMWLIB);
+
+MODULE_DESCRIPTION("Texas Firmware Support");
+MODULE_AUTHOR("Shenghao Ding, TI, <shenghao-ding@ti.com>");
+MODULE_LICENSE("GPL");
