diff --git a/drivers/hid/intel-thc-hid/Makefile b/drivers/hid/intel-thc-hid/Makefile
index bebb60bedfeb..b9709cc5e9eb 100644
--- a/drivers/hid/intel-thc-hid/Makefile
+++ b/drivers/hid/intel-thc-hid/Makefile
@@ -7,5 +7,6 @@
 
 obj-$(CONFIG_INTEL_THC_HID) += intel-thc.o
 intel-thc-objs += intel-thc/intel-thc-dev.o
+intel-thc-objs += intel-thc/intel-thc-dma.o
 
 ccflags-y += -I $(src)/intel-thc
diff --git a/drivers/hid/intel-thc-hid/intel-thc/intel-thc-dev.c b/drivers/hid/intel-thc-hid/intel-thc/intel-thc-dev.c
index c898cd78c37b..06ca0e5ba7f0 100644
--- a/drivers/hid/intel-thc-hid/intel-thc/intel-thc-dev.c
+++ b/drivers/hid/intel-thc-hid/intel-thc/intel-thc-dev.c
@@ -79,6 +79,14 @@ struct thc_device *thc_dev_init(struct device *device, void __iomem *mem_addr)
 	}
 
 	mutex_init(&thc_dev->thc_bus_lock);
+	init_waitqueue_head(&thc_dev->write_complete_wait);
+	init_waitqueue_head(&thc_dev->swdma_complete_wait);
+
+	thc_dev->dma_ctx = thc_dma_init(thc_dev);
+	if (!thc_dev->dma_ctx) {
+		dev_err_once(device, "DMA context init failed\n");
+		return ERR_PTR(-ENOMEM);
+	}
 
 	return thc_dev;
 }
diff --git a/drivers/hid/intel-thc-hid/intel-thc/intel-thc-dev.h b/drivers/hid/intel-thc-hid/intel-thc/intel-thc-dev.h
index bef48c25c195..f775b972b4f5 100644
--- a/drivers/hid/intel-thc-hid/intel-thc/intel-thc-dev.h
+++ b/drivers/hid/intel-thc-hid/intel-thc/intel-thc-dev.h
@@ -6,6 +6,9 @@
 
 #include <linux/cdev.h>
 #include <linux/mutex.h>
+#include <linux/workqueue.h>
+
+#include "intel-thc-dma.h"
 
 #define THC_REGMAP_COMMON_OFFSET  0x10
 #define THC_REGMAP_MMIO_OFFSET    0x1000
@@ -27,6 +30,12 @@ enum thc_port_type {
  * @thc_bus_lock: mutex locker for THC config
  * @port_type: port type of THC port instance
  * @pio_int_supported: PIO interrupt supported flag
+ * @dma_ctx: DMA specific data
+ * @write_complete_wait: signal event for DMA write complete
+ * @swdma_complete_wait: signal event for SWDMA sequence complete
+ * @write_done: bool value that indicates if DMA write is done
+ * @swdma_done: bool value that indicates if SWDMA swquence is done
+ * @perf_limit: the delay between read operation and write operation
  */
 struct thc_device {
 	struct device *dev;
@@ -35,6 +44,15 @@ struct thc_device {
 	struct mutex thc_bus_lock;
 	enum thc_port_type port_type;
 	bool pio_int_supported;
+
+	struct thc_dma_context *dma_ctx;
+
+	wait_queue_head_t write_complete_wait;
+	wait_queue_head_t swdma_complete_wait;
+	bool write_done;
+	bool swdma_done;
+
+	u32 perf_limit;
 };
 
 struct thc_device *thc_dev_init(struct device *device, void __iomem *mem_addr);
diff --git a/drivers/hid/intel-thc-hid/intel-thc/intel-thc-dma.c b/drivers/hid/intel-thc-hid/intel-thc/intel-thc-dma.c
new file mode 100644
index 000000000000..d9a3e6f5c47f
--- /dev/null
+++ b/drivers/hid/intel-thc-hid/intel-thc/intel-thc-dma.c
@@ -0,0 +1,969 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2024 Intel Corporation */
+
+#include <linux/bitfield.h>
+#include <linux/delay.h>
+#include <linux/overflow.h>
+#include <linux/regmap.h>
+#include <linux/scatterlist.h>
+
+#include "intel-thc-dev.h"
+#include "intel-thc-dma.h"
+#include "intel-thc-hw.h"
+
+static void dma_set_prd_base_addr(struct thc_device *dev, u64 physical_addr,
+				  struct thc_dma_configuration *dma_config)
+{
+	u32 addr_high, addr_low;
+
+	if (!dma_config->is_enabled)
+		return;
+
+	addr_high = upper_32_bits(physical_addr);
+	addr_low = lower_32_bits(physical_addr);
+
+	regmap_write(dev->thc_regmap, dma_config->prd_base_addr_high, addr_high);
+	regmap_write(dev->thc_regmap, dma_config->prd_base_addr_low, addr_low);
+}
+
+static void dma_set_start_bit(struct thc_device *dev,
+			      struct thc_dma_configuration *dma_config)
+{
+	u32 ctrl, mask, mbits, data, offset;
+
+	if (!dma_config->is_enabled)
+		return;
+
+	switch (dma_config->dma_channel) {
+	case THC_RXDMA1:
+	case THC_RXDMA2:
+		if (dma_config->dma_channel == THC_RXDMA2) {
+			mbits = FIELD_PREP(THC_M_PRT_DEVINT_CFG_1_THC_M_PRT_INTTYP_DATA_VAL,
+					   THC_BITMASK_INTERRUPT_TYPE_DATA);
+			mask = THC_M_PRT_DEVINT_CFG_1_THC_M_PRT_INTTYP_DATA_VAL;
+			regmap_write_bits(dev->thc_regmap,
+					  THC_M_PRT_DEVINT_CFG_1_OFFSET, mask, mbits);
+		}
+
+		mbits = THC_M_PRT_READ_DMA_CNTRL_IE_EOF |
+			THC_M_PRT_READ_DMA_CNTRL_SOO |
+			THC_M_PRT_READ_DMA_CNTRL_IE_STALL |
+			THC_M_PRT_READ_DMA_CNTRL_IE_ERROR |
+			THC_M_PRT_READ_DMA_CNTRL_START;
+
+		mask = THC_M_PRT_READ_DMA_CNTRL_TPCWP | mbits;
+		mask |= THC_M_PRT_READ_DMA_CNTRL_INT_SW_DMA_EN;
+		ctrl = FIELD_PREP(THC_M_PRT_READ_DMA_CNTRL_TPCWP, THC_POINTER_WRAPAROUND) | mbits;
+		offset = dma_config->dma_channel == THC_RXDMA1 ?
+			 THC_M_PRT_READ_DMA_CNTRL_1_OFFSET : THC_M_PRT_READ_DMA_CNTRL_2_OFFSET;
+		regmap_write_bits(dev->thc_regmap, offset, mask, ctrl);
+		break;
+
+	case THC_SWDMA:
+		mbits = THC_M_PRT_READ_DMA_CNTRL_IE_DMACPL |
+			THC_M_PRT_READ_DMA_CNTRL_IE_IOC |
+			THC_M_PRT_READ_DMA_CNTRL_SOO |
+			THC_M_PRT_READ_DMA_CNTRL_START;
+
+		mask = THC_M_PRT_READ_DMA_CNTRL_TPCWP | mbits;
+		ctrl = FIELD_PREP(THC_M_PRT_READ_DMA_CNTRL_TPCWP, THC_POINTER_WRAPAROUND) | mbits;
+		regmap_write_bits(dev->thc_regmap, THC_M_PRT_READ_DMA_CNTRL_SW_OFFSET,
+				  mask, ctrl);
+		break;
+
+	case THC_TXDMA:
+		regmap_write_bits(dev->thc_regmap, THC_M_PRT_WRITE_INT_STS_OFFSET,
+				  THC_M_PRT_WRITE_INT_STS_THC_WRDMA_CMPL_STATUS,
+				  THC_M_PRT_WRITE_INT_STS_THC_WRDMA_CMPL_STATUS);
+
+		/* Select interrupt or polling method upon Write completion */
+		if (dev->dma_ctx->use_write_interrupts)
+			data = THC_M_PRT_WRITE_DMA_CNTRL_THC_WRDMA_IE_IOC_DMACPL;
+		else
+			data = 0;
+
+		data |= THC_M_PRT_WRITE_DMA_CNTRL_THC_WRDMA_START;
+		mask = THC_M_PRT_WRITE_DMA_CNTRL_THC_WRDMA_IE_IOC_DMACPL |
+		       THC_M_PRT_WRITE_DMA_CNTRL_THC_WRDMA_START;
+		regmap_write_bits(dev->thc_regmap, THC_M_PRT_WRITE_DMA_CNTRL_OFFSET,
+				  mask, data);
+		break;
+
+	default:
+		break;
+	}
+}
+
+static void dma_set_prd_control(struct thc_device *dev, u8 entry_count, u8 cb_depth,
+				struct thc_dma_configuration *dma_config)
+{
+	u32 ctrl, mask;
+
+	if (!dma_config->is_enabled)
+		return;
+
+	if (dma_config->dma_channel == THC_TXDMA) {
+		mask = THC_M_PRT_WRITE_DMA_CNTRL_THC_WRDMA_PTEC;
+		ctrl = FIELD_PREP(THC_M_PRT_WRITE_DMA_CNTRL_THC_WRDMA_PTEC, entry_count);
+	} else {
+		mask = THC_M_PRT_RPRD_CNTRL_PTEC | THC_M_PRT_RPRD_CNTRL_PCD;
+		ctrl = FIELD_PREP(THC_M_PRT_RPRD_CNTRL_PTEC, entry_count) |
+		       FIELD_PREP(THC_M_PRT_RPRD_CNTRL_PCD, cb_depth);
+	}
+
+	regmap_write_bits(dev->thc_regmap, dma_config->prd_cntrl, mask, ctrl);
+}
+
+static void dma_clear_prd_control(struct thc_device *dev,
+				  struct thc_dma_configuration *dma_config)
+{
+	u32 mask;
+
+	if (!dma_config->is_enabled)
+		return;
+
+	if (dma_config->dma_channel == THC_TXDMA)
+		mask = THC_M_PRT_WRITE_DMA_CNTRL_THC_WRDMA_PTEC;
+	else
+		mask = THC_M_PRT_RPRD_CNTRL_PTEC | THC_M_PRT_RPRD_CNTRL_PCD;
+
+	regmap_write_bits(dev->thc_regmap, dma_config->prd_cntrl, mask, 0);
+}
+
+static u8 dma_get_read_pointer(struct thc_device *dev,
+			       struct thc_dma_configuration *dma_config)
+{
+	u32 ctrl, read_pointer;
+
+	regmap_read(dev->thc_regmap, dma_config->dma_cntrl, &ctrl);
+	read_pointer = FIELD_GET(THC_M_PRT_READ_DMA_CNTRL_TPCRP, ctrl);
+
+	dev_dbg(dev->dev, "THC_M_PRT_READ_DMA_CNTRL 0x%x offset 0x%x TPCRP 0x%x\n",
+		ctrl, dma_config->dma_cntrl, read_pointer);
+
+	return read_pointer;
+}
+
+static u8 dma_get_write_pointer(struct thc_device *dev,
+				struct thc_dma_configuration *dma_config)
+{
+	u32 ctrl, write_pointer;
+
+	regmap_read(dev->thc_regmap, dma_config->dma_cntrl, &ctrl);
+	write_pointer = FIELD_GET(THC_M_PRT_READ_DMA_CNTRL_TPCWP, ctrl);
+
+	dev_dbg(dev->dev, "THC_M_PRT_READ_DMA_CNTRL 0x%x offset 0x%x TPCWP 0x%x\n",
+		ctrl, dma_config->dma_cntrl, write_pointer);
+
+	return write_pointer;
+}
+
+static void dma_set_write_pointer(struct thc_device *dev, u8 value,
+				  struct thc_dma_configuration *dma_config)
+{
+	u32 ctrl, mask;
+
+	mask = THC_M_PRT_READ_DMA_CNTRL_TPCWP;
+	ctrl = FIELD_PREP(THC_M_PRT_READ_DMA_CNTRL_TPCWP, value);
+	regmap_write_bits(dev->thc_regmap, dma_config->dma_cntrl, mask, ctrl);
+}
+
+static size_t dma_get_max_packet_size(struct thc_device *dev,
+				      struct thc_dma_configuration *dma_config)
+{
+	return dma_config->max_packet_size;
+}
+
+static void dma_set_max_packet_size(struct thc_device *dev, size_t size,
+				    struct thc_dma_configuration *dma_config)
+{
+	if (size) {
+		dma_config->max_packet_size = ALIGN(size, SZ_4K);
+		dma_config->is_enabled = true;
+	}
+}
+
+static void thc_copy_one_sgl_to_prd(struct thc_device *dev,
+				    struct thc_dma_configuration *config,
+				    unsigned int ind)
+{
+	struct thc_prd_table *prd_tbl;
+	struct scatterlist *sg;
+	int j;
+
+	prd_tbl = &config->prd_tbls[ind];
+
+	for_each_sg(config->sgls[ind], sg, config->sgls_nent[ind], j) {
+		prd_tbl->entries[j].dest_addr =
+				sg_dma_address(sg) >> THC_ADDRESS_SHIFT;
+		prd_tbl->entries[j].len = sg_dma_len(sg);
+		prd_tbl->entries[j].hw_status = 0;
+		prd_tbl->entries[j].end_of_prd = 0;
+	}
+
+	/* Set the end_of_prd flag in the last filled entry */
+	if (j > 0)
+		prd_tbl->entries[j - 1].end_of_prd = 1;
+}
+
+static void thc_copy_sgls_to_prd(struct thc_device *dev,
+				 struct thc_dma_configuration *config)
+{
+	unsigned int i;
+
+	memset(config->prd_tbls, 0, array_size(PRD_TABLE_SIZE, config->prd_tbl_num));
+
+	for (i = 0; i < config->prd_tbl_num; i++)
+		thc_copy_one_sgl_to_prd(dev, config, i);
+}
+
+static int setup_dma_buffers(struct thc_device *dev,
+			     struct thc_dma_configuration *config,
+			     enum dma_data_direction dir)
+{
+	size_t prd_tbls_size = array_size(PRD_TABLE_SIZE, config->prd_tbl_num);
+	unsigned int i, nent = PRD_ENTRIES_NUM;
+	dma_addr_t dma_handle;
+	void *cpu_addr;
+	size_t buf_sz;
+	int count;
+
+	if (!config->is_enabled)
+		return 0;
+
+	memset(config->sgls, 0, sizeof(config->sgls));
+	memset(config->sgls_nent, 0, sizeof(config->sgls_nent));
+
+	cpu_addr = dma_alloc_coherent(dev->dev, prd_tbls_size,
+				      &dma_handle, GFP_KERNEL);
+	if (!cpu_addr)
+		return -ENOMEM;
+
+	config->prd_tbls = cpu_addr;
+	config->prd_tbls_dma_handle = dma_handle;
+
+	buf_sz = dma_get_max_packet_size(dev, config);
+
+	/* Allocate and map the scatter-gather lists, one for each PRD table */
+	for (i = 0; i < config->prd_tbl_num; i++) {
+		config->sgls[i] = sgl_alloc(buf_sz, GFP_KERNEL, &nent);
+		if (!config->sgls[i] || nent > PRD_ENTRIES_NUM) {
+			dev_err_once(dev->dev, "sgl_alloc (%uth) failed, nent %u\n",
+				     i, nent);
+			return -ENOMEM;
+		}
+		count = dma_map_sg(dev->dev, config->sgls[i], nent, dir);
+
+		config->sgls_nent[i] = count;
+	}
+
+	thc_copy_sgls_to_prd(dev, config);
+
+	return 0;
+}
+
+static void thc_reset_dma_settings(struct thc_device *dev)
+{
+	/* Stop all DMA channels and reset DMA read pointers */
+	regmap_write_bits(dev->thc_regmap, THC_M_PRT_READ_DMA_CNTRL_1_OFFSET,
+			  THC_M_PRT_READ_DMA_CNTRL_START, 0);
+	regmap_write_bits(dev->thc_regmap, THC_M_PRT_READ_DMA_CNTRL_2_OFFSET,
+			  THC_M_PRT_READ_DMA_CNTRL_START, 0);
+	regmap_write_bits(dev->thc_regmap, THC_M_PRT_READ_DMA_CNTRL_SW_OFFSET,
+			  THC_M_PRT_READ_DMA_CNTRL_START, 0);
+	regmap_write_bits(dev->thc_regmap, THC_M_PRT_WRITE_DMA_CNTRL_OFFSET,
+			  THC_M_PRT_WRITE_DMA_CNTRL_THC_WRDMA_START, 0);
+
+	regmap_write_bits(dev->thc_regmap, THC_M_PRT_READ_DMA_CNTRL_1_OFFSET,
+			  THC_M_PRT_READ_DMA_CNTRL_TPCPR,
+			  THC_M_PRT_READ_DMA_CNTRL_TPCPR);
+	regmap_write_bits(dev->thc_regmap, THC_M_PRT_READ_DMA_CNTRL_2_OFFSET,
+			  THC_M_PRT_READ_DMA_CNTRL_TPCPR,
+			  THC_M_PRT_READ_DMA_CNTRL_TPCPR);
+	regmap_write_bits(dev->thc_regmap, THC_M_PRT_READ_DMA_CNTRL_SW_OFFSET,
+			  THC_M_PRT_READ_DMA_CNTRL_TPCPR,
+			  THC_M_PRT_READ_DMA_CNTRL_TPCPR);
+}
+
+static void release_dma_buffers(struct thc_device *dev,
+				struct thc_dma_configuration *config)
+{
+	size_t prd_tbls_size = array_size(PRD_TABLE_SIZE, config->prd_tbl_num);
+	unsigned int i;
+
+	if (!config->is_enabled)
+		return;
+
+	for (i = 0; i < config->prd_tbl_num; i++) {
+		if (!config->sgls[i] | !config->sgls_nent[i])
+			continue;
+
+		dma_unmap_sg(dev->dev, config->sgls[i],
+			     config->sgls_nent[i],
+			     config->dir);
+
+		sgl_free(config->sgls[i]);
+		config->sgls[i] = NULL;
+	}
+
+	memset(config->prd_tbls, 0, prd_tbls_size);
+
+	if (config->prd_tbls) {
+		dma_free_coherent(dev->dev, prd_tbls_size, config->prd_tbls,
+				  config->prd_tbls_dma_handle);
+		config->prd_tbls = NULL;
+		config->prd_tbls_dma_handle = 0;
+	}
+}
+
+struct thc_dma_context *thc_dma_init(struct thc_device *dev)
+{
+	struct thc_dma_context *dma_ctx;
+
+	dma_ctx = devm_kzalloc(dev->dev, sizeof(*dma_ctx), GFP_KERNEL);
+	if (!dma_ctx)
+		return NULL;
+
+	dev->dma_ctx = dma_ctx;
+
+	dma_ctx->dma_config[THC_RXDMA1].dma_channel = THC_RXDMA1;
+	dma_ctx->dma_config[THC_RXDMA2].dma_channel = THC_RXDMA2;
+	dma_ctx->dma_config[THC_TXDMA].dma_channel = THC_TXDMA;
+	dma_ctx->dma_config[THC_SWDMA].dma_channel = THC_SWDMA;
+
+	dma_ctx->dma_config[THC_RXDMA1].dir = DMA_FROM_DEVICE;
+	dma_ctx->dma_config[THC_RXDMA2].dir = DMA_FROM_DEVICE;
+	dma_ctx->dma_config[THC_TXDMA].dir = DMA_TO_DEVICE;
+	dma_ctx->dma_config[THC_SWDMA].dir = DMA_FROM_DEVICE;
+
+	dma_ctx->dma_config[THC_RXDMA1].prd_tbl_num = PRD_TABLES_NUM;
+	dma_ctx->dma_config[THC_RXDMA2].prd_tbl_num = PRD_TABLES_NUM;
+	dma_ctx->dma_config[THC_TXDMA].prd_tbl_num = 1;
+	dma_ctx->dma_config[THC_SWDMA].prd_tbl_num = 1;
+
+	dma_ctx->dma_config[THC_RXDMA1].prd_base_addr_high = THC_M_PRT_RPRD_BA_HI_1_OFFSET;
+	dma_ctx->dma_config[THC_RXDMA2].prd_base_addr_high = THC_M_PRT_RPRD_BA_HI_2_OFFSET;
+	dma_ctx->dma_config[THC_TXDMA].prd_base_addr_high = THC_M_PRT_WPRD_BA_HI_OFFSET;
+	dma_ctx->dma_config[THC_SWDMA].prd_base_addr_high = THC_M_PRT_RPRD_BA_HI_SW_OFFSET;
+
+	dma_ctx->dma_config[THC_RXDMA1].prd_base_addr_low = THC_M_PRT_RPRD_BA_LOW_1_OFFSET;
+	dma_ctx->dma_config[THC_RXDMA2].prd_base_addr_low = THC_M_PRT_RPRD_BA_LOW_2_OFFSET;
+	dma_ctx->dma_config[THC_TXDMA].prd_base_addr_low = THC_M_PRT_WPRD_BA_LOW_OFFSET;
+	dma_ctx->dma_config[THC_SWDMA].prd_base_addr_low = THC_M_PRT_RPRD_BA_LOW_SW_OFFSET;
+
+	dma_ctx->dma_config[THC_RXDMA1].prd_cntrl = THC_M_PRT_RPRD_CNTRL_1_OFFSET;
+	dma_ctx->dma_config[THC_RXDMA2].prd_cntrl = THC_M_PRT_RPRD_CNTRL_2_OFFSET;
+	dma_ctx->dma_config[THC_TXDMA].prd_cntrl = THC_M_PRT_WRITE_DMA_CNTRL_OFFSET;
+	dma_ctx->dma_config[THC_SWDMA].prd_cntrl = THC_M_PRT_RPRD_CNTRL_SW_OFFSET;
+
+	dma_ctx->dma_config[THC_RXDMA1].dma_cntrl = THC_M_PRT_READ_DMA_CNTRL_1_OFFSET;
+	dma_ctx->dma_config[THC_RXDMA2].dma_cntrl = THC_M_PRT_READ_DMA_CNTRL_2_OFFSET;
+	dma_ctx->dma_config[THC_TXDMA].dma_cntrl = THC_M_PRT_WRITE_DMA_CNTRL_OFFSET;
+	dma_ctx->dma_config[THC_SWDMA].dma_cntrl = THC_M_PRT_READ_DMA_CNTRL_SW_OFFSET;
+
+	/* Enable write DMA completion interrupt by default */
+	dma_ctx->use_write_interrupts = 1;
+
+	return dma_ctx;
+}
+
+/**
+ * thc_dma_set_max_packet_sizes - Set max packet sizes for all DMA engines
+ *
+ * @dev: The pointer of THC private device context
+ * @mps_read1: RxDMA1 max packet size
+ * @mps_read2: RxDMA2 max packet size
+ * @mps_write: TxDMA max packet size
+ * @mps_swdma: Software DMA max packet size
+ *
+ * If mps is not 0, it means the corresponding DMA channel is used, then set
+ * the flag to turn on this channel.
+ *
+ * Return: 0 on success, other error codes on failed.
+ */
+int thc_dma_set_max_packet_sizes(struct thc_device *dev, size_t mps_read1,
+				 size_t mps_read2, size_t mps_write,
+				 size_t mps_swdma)
+{
+	if (!dev->dma_ctx) {
+		dev_err_once(dev->dev,
+			     "Cannot set max packet sizes because DMA context is NULL!\n");
+		return -EINVAL;
+	}
+
+	dma_set_max_packet_size(dev, mps_read1, &dev->dma_ctx->dma_config[THC_RXDMA1]);
+	dma_set_max_packet_size(dev, mps_read2, &dev->dma_ctx->dma_config[THC_RXDMA2]);
+	dma_set_max_packet_size(dev, mps_write, &dev->dma_ctx->dma_config[THC_TXDMA]);
+	dma_set_max_packet_size(dev, mps_swdma, &dev->dma_ctx->dma_config[THC_SWDMA]);
+
+	return 0;
+}
+EXPORT_SYMBOL_NS_GPL(thc_dma_set_max_packet_sizes, INTEL_THC);
+
+/**
+ * thc_dma_allocate - Allocate DMA buffers for all DMA engines
+ *
+ * @dev: The pointer of THC private device context
+ *
+ * Return: 0 on success, other error codes on failed.
+ */
+int thc_dma_allocate(struct thc_device *dev)
+{
+	int ret, chan;
+
+	for (chan = 0; chan < MAX_THC_DMA_CHANNEL; chan++) {
+		ret = setup_dma_buffers(dev, &dev->dma_ctx->dma_config[chan],
+					dev->dma_ctx->dma_config[chan].dir);
+		if (ret < 0) {
+			dev_err_once(dev->dev, "DMA setup failed for DMA channel %d\n", chan);
+			goto release_bufs;
+		}
+	}
+
+	return 0;
+
+release_bufs:
+	while (chan--)
+		release_dma_buffers(dev, &dev->dma_ctx->dma_config[chan]);
+
+	return ret;
+}
+EXPORT_SYMBOL_NS_GPL(thc_dma_allocate, INTEL_THC);
+
+/**
+ * thc_dma_release - Release DMA buffers for all DMA engines
+ *
+ * @dev: The pointer of THC private device context
+ */
+void thc_dma_release(struct thc_device *dev)
+{
+	int chan;
+
+	for (chan = 0; chan < MAX_THC_DMA_CHANNEL; chan++)
+		release_dma_buffers(dev, &dev->dma_ctx->dma_config[chan]);
+}
+EXPORT_SYMBOL_NS_GPL(thc_dma_release, INTEL_THC);
+
+static int calc_prd_entries_num(struct thc_prd_table *prd_tbl,
+				size_t mes_len, u8 *nent)
+{
+	*nent = DIV_ROUND_UP(mes_len, THC_MIN_BYTES_PER_SG_LIST_ENTRY);
+	if (*nent > PRD_ENTRIES_NUM)
+		return -EMSGSIZE;
+
+	return 0;
+}
+
+static size_t calc_message_len(struct thc_prd_table *prd_tbl, u8 *nent)
+{
+	size_t mes_len = 0;
+	unsigned int j;
+
+	for (j = 0; j < PRD_ENTRIES_NUM; j++) {
+		mes_len += prd_tbl->entries[j].len;
+		if (prd_tbl->entries[j].end_of_prd)
+			break;
+	}
+
+	*nent = j + 1;
+
+	return mes_len;
+}
+
+/**
+ * thc_dma_configure - Configure DMA settings for all DMA engines
+ *
+ * @dev: The pointer of THC private device context
+ *
+ * Return: 0 on success, other error codes on failed.
+ */
+int thc_dma_configure(struct thc_device *dev)
+{
+	struct thc_dma_context *dma_ctx = dev->dma_ctx;
+	int chan;
+
+	thc_reset_dma_settings(dev);
+
+	if (!dma_ctx) {
+		dev_err_once(dev->dev, "Cannot do DMA configure because DMA context is NULL\n");
+		return -EINVAL;
+	}
+
+	for (chan = 0; chan < MAX_THC_DMA_CHANNEL; chan++) {
+		dma_set_prd_base_addr(dev,
+				      dma_ctx->dma_config[chan].prd_tbls_dma_handle,
+				      &dma_ctx->dma_config[chan]);
+
+		dma_set_prd_control(dev, PRD_ENTRIES_NUM - 1,
+				    dma_ctx->dma_config[chan].prd_tbl_num - 1,
+				    &dma_ctx->dma_config[chan]);
+	}
+
+	/* Start read2 DMA engine */
+	dma_set_start_bit(dev, &dma_ctx->dma_config[THC_RXDMA2]);
+
+	dev_dbg(dev->dev, "DMA configured successfully!\n");
+
+	return 0;
+}
+EXPORT_SYMBOL_NS_GPL(thc_dma_configure, INTEL_THC);
+
+/**
+ * thc_dma_unconfigure - Unconfigure DMA settings for all DMA engines
+ *
+ * @dev: The pointer of THC private device context
+ */
+void thc_dma_unconfigure(struct thc_device *dev)
+{
+	int chan;
+
+	for (chan = 0; chan < MAX_THC_DMA_CHANNEL; chan++) {
+		dma_set_prd_base_addr(dev, 0, &dev->dma_ctx->dma_config[chan]);
+		dma_clear_prd_control(dev, &dev->dma_ctx->dma_config[chan]);
+	}
+
+	regmap_write_bits(dev->thc_regmap, THC_M_PRT_READ_DMA_CNTRL_1_OFFSET,
+			  THC_M_PRT_READ_DMA_CNTRL_START, 0);
+
+	regmap_write_bits(dev->thc_regmap, THC_M_PRT_READ_DMA_CNTRL_2_OFFSET,
+			  THC_M_PRT_READ_DMA_CNTRL_START, 0);
+}
+EXPORT_SYMBOL_NS_GPL(thc_dma_unconfigure, INTEL_THC);
+
+static int thc_wait_for_dma_pause(struct thc_device *dev, enum thc_dma_channel channel)
+{
+	u32 ctrl_reg, sts_reg, sts;
+	int ret;
+
+	ctrl_reg = (channel == THC_RXDMA1) ? THC_M_PRT_READ_DMA_CNTRL_1_OFFSET :
+			((channel == THC_RXDMA2) ? THC_M_PRT_READ_DMA_CNTRL_2_OFFSET :
+						   THC_M_PRT_READ_DMA_CNTRL_SW_OFFSET);
+
+	regmap_write_bits(dev->thc_regmap, ctrl_reg, THC_M_PRT_READ_DMA_CNTRL_START, 0);
+
+	sts_reg = (channel == THC_RXDMA1) ? THC_M_PRT_READ_DMA_INT_STS_1_OFFSET :
+			((channel == THC_RXDMA2) ? THC_M_PRT_READ_DMA_INT_STS_2_OFFSET :
+						   THC_M_PRT_READ_DMA_INT_STS_SW_OFFSET);
+
+	ret = regmap_read_poll_timeout(dev->thc_regmap, sts_reg, sts,
+				       !(sts & THC_M_PRT_READ_DMA_INT_STS_ACTIVE),
+				       THC_DEFAULT_RXDMA_POLLING_US_INTERVAL,
+				       THC_DEFAULT_RXDMA_POLLING_US_TIMEOUT);
+
+	if (ret) {
+		dev_err_once(dev->dev,
+			     "Timeout while waiting for DMA %d stop\n", channel);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int read_dma_buffer(struct thc_device *dev,
+			   struct thc_dma_configuration *read_config,
+			   u8 prd_table_index, void *read_buff)
+{
+	struct thc_prd_table *prd_tbl;
+	struct scatterlist *sg;
+	size_t mes_len, ret;
+	u8 nent;
+
+	if (prd_table_index >= read_config->prd_tbl_num) {
+		dev_err_once(dev->dev, "PRD table index %d too big\n", prd_table_index);
+		return -EINVAL;
+	}
+
+	prd_tbl = &read_config->prd_tbls[prd_table_index];
+	mes_len = calc_message_len(prd_tbl, &nent);
+	if (mes_len > read_config->max_packet_size) {
+		dev_err(dev->dev,
+			"Message length %zu is bigger than buffer length %lu\n",
+			mes_len, read_config->max_packet_size);
+		return -EMSGSIZE;
+	}
+
+	sg = read_config->sgls[prd_table_index];
+	ret = sg_copy_to_buffer(sg, nent, read_buff, mes_len);
+	if (ret != mes_len) {
+		dev_err_once(dev->dev, "Copied %zu bytes instead of requested %zu\n",
+			     ret, mes_len);
+		return -EIO;
+	}
+
+	return mes_len;
+}
+
+static void update_write_pointer(struct thc_device *dev,
+				 struct thc_dma_configuration *read_config)
+{
+	u8 write_ptr = dma_get_write_pointer(dev, read_config);
+
+	if (write_ptr + 1 == THC_WRAPAROUND_VALUE_ODD)
+		dma_set_write_pointer(dev, THC_POINTER_WRAPAROUND, read_config);
+	else if (write_ptr + 1 == THC_WRAPAROUND_VALUE_EVEN)
+		dma_set_write_pointer(dev, 0, read_config);
+	else
+		dma_set_write_pointer(dev, write_ptr + 1, read_config);
+}
+
+static int is_dma_buf_empty(struct thc_device *dev,
+			    struct thc_dma_configuration *read_config,
+			    u8 *read_ptr, u8 *write_ptr)
+{
+	*read_ptr = dma_get_read_pointer(dev, read_config);
+	*write_ptr = dma_get_write_pointer(dev, read_config);
+
+	if ((*read_ptr & THC_POINTER_MASK) == (*write_ptr & THC_POINTER_MASK))
+		if (*read_ptr != *write_ptr)
+			return true;
+
+	return false;
+}
+
+static int thc_dma_read(struct thc_device *dev,
+			struct thc_dma_configuration *read_config,
+			void *read_buff, size_t *read_len, int *read_finished)
+{
+	u8 read_ptr, write_ptr, prd_table_index;
+	int status;
+
+	if (!is_dma_buf_empty(dev, read_config, &read_ptr, &write_ptr)) {
+		prd_table_index = write_ptr & THC_POINTER_MASK;
+
+		status = read_dma_buffer(dev, read_config, prd_table_index, read_buff);
+		if (status <= 0) {
+			dev_err_once(dev->dev, "read DMA buffer failed %d\n", status);
+			return -EIO;
+		}
+
+		*read_len = status;
+
+		/* Clear the relevant PRD table */
+		thc_copy_one_sgl_to_prd(dev, read_config, prd_table_index);
+
+		/* Increment the write pointer to let the HW know we have processed this PRD */
+		update_write_pointer(dev, read_config);
+	}
+
+	/*
+	 * This function only reads one frame from PRD table for each call, so we need to
+	 * check if all DMAed data is read out and return the flag to the caller. Caller
+	 * should repeatedly call thc_dma_read() until all DMAed data is handled.
+	 */
+	if (read_finished)
+		*read_finished = is_dma_buf_empty(dev, read_config, &read_ptr, &write_ptr) ? 1 : 0;
+
+	return 0;
+}
+
+/**
+ * thc_rxdma_read - Read data from RXDMA buffer
+ *
+ * @dev: The pointer of THC private device context
+ * @dma_channel: The RXDMA engine of read data source
+ * @read_buff: The pointer of the read data buffer
+ * @read_len: The pointer of the read data length
+ * @read_finished: The pointer of the flag indicating if all pending data has been read out
+ *
+ * Return: 0 on success, other error codes on failed.
+ */
+int thc_rxdma_read(struct thc_device *dev, enum thc_dma_channel dma_channel,
+		   void *read_buff, size_t *read_len, int *read_finished)
+{
+	struct thc_dma_configuration *dma_config;
+	int ret;
+
+	dma_config = &dev->dma_ctx->dma_config[dma_channel];
+
+	if (!dma_config->is_enabled) {
+		dev_err_once(dev->dev, "The DMA channel %d is not enabled", dma_channel);
+		return -EINVAL;
+	}
+
+	if (!read_buff || !read_len) {
+		dev_err(dev->dev, "Invalid input parameters, read_buff %p, read_len %p\n",
+			read_buff, read_len);
+		return -EINVAL;
+	}
+
+	if (dma_channel >= THC_TXDMA) {
+		dev_err(dev->dev, "Unsupported DMA channel for RxDMA read, %d\n", dma_channel);
+		return -EINVAL;
+	}
+
+	ret = thc_dma_read(dev, dma_config, read_buff, read_len, read_finished);
+
+	return ret;
+}
+EXPORT_SYMBOL_NS_GPL(thc_rxdma_read, INTEL_THC);
+
+static int thc_swdma_read_start(struct thc_device *dev, void *write_buff,
+				size_t write_len, u32 *prd_tbl_len)
+{
+	u32 mask, val, data0 = 0, data1 = 0;
+	int ret;
+
+	ret = thc_interrupt_quiesce(dev, true);
+	if (ret)
+		return ret;
+
+	if (thc_wait_for_dma_pause(dev, THC_RXDMA1) || thc_wait_for_dma_pause(dev, THC_RXDMA2))
+		return -EIO;
+
+	thc_reset_dma_settings(dev);
+
+	mask = THC_M_PRT_RPRD_CNTRL_SW_THC_SWDMA_I2C_WBC |
+	       THC_M_PRT_RPRD_CNTRL_SW_THC_SWDMA_I2C_RX_DLEN_EN;
+	val = FIELD_PREP(THC_M_PRT_RPRD_CNTRL_SW_THC_SWDMA_I2C_WBC, write_len) |
+	      ((!prd_tbl_len) ? THC_M_PRT_RPRD_CNTRL_SW_THC_SWDMA_I2C_RX_DLEN_EN : 0);
+	regmap_write_bits(dev->thc_regmap, THC_M_PRT_RPRD_CNTRL_SW_OFFSET,
+			  mask, val);
+
+	if (prd_tbl_len) {
+		mask = THC_M_PRT_SW_DMA_PRD_TABLE_LEN_THC_M_PRT_SW_DMA_PRD_TABLE_LEN;
+		val = FIELD_PREP(THC_M_PRT_SW_DMA_PRD_TABLE_LEN_THC_M_PRT_SW_DMA_PRD_TABLE_LEN,
+				 *prd_tbl_len);
+		regmap_write_bits(dev->thc_regmap, THC_M_PRT_SW_DMA_PRD_TABLE_LEN_OFFSET,
+				  mask, val);
+	}
+
+	if (write_len <= sizeof(u32)) {
+		for (int i = 0; i < write_len; i++)
+			data0 |= *(((u8 *)write_buff) + i) << (i * 8);
+
+		regmap_write(dev->thc_regmap, THC_M_PRT_SW_SEQ_DATA0_ADDR_OFFSET, data0);
+	} else if (write_len <= 2 * sizeof(u32)) {
+		data0 = *(u32 *)write_buff;
+		regmap_write(dev->thc_regmap, THC_M_PRT_SW_SEQ_DATA0_ADDR_OFFSET, data0);
+
+		for (int i = 0; i < write_len - sizeof(u32); i++)
+			data1 |= *(((u8 *)write_buff) + sizeof(u32) + i) << (i * 8);
+
+		regmap_write(dev->thc_regmap, THC_M_PRT_SW_SEQ_DATA1_OFFSET, data1);
+	}
+	dma_set_start_bit(dev, &dev->dma_ctx->dma_config[THC_SWDMA]);
+
+	return 0;
+}
+
+static int thc_swdma_read_completion(struct thc_device *dev)
+{
+	int ret;
+
+	ret = thc_wait_for_dma_pause(dev, THC_SWDMA);
+	if (ret)
+		return ret;
+
+	thc_reset_dma_settings(dev);
+
+	dma_set_start_bit(dev, &dev->dma_ctx->dma_config[THC_RXDMA2]);
+
+	ret = thc_interrupt_quiesce(dev, false);
+
+	return ret;
+}
+
+/**
+ * thc_swdma_read - Use software DMA to read data from touch device
+ *
+ * @dev: The pointer of THC private device context
+ * @write_buff: The pointer of write buffer for SWDMA sequence
+ * @write_len: The write data length for SWDMA sequence
+ * @prd_tbl_len: The prd table length of SWDMA engine, can be set to NULL
+ * @read_buff: The pointer of the read data buffer
+ * @read_len: The pointer of the read data length
+ *
+ * Return: 0 on success, other error codes on failed.
+ */
+int thc_swdma_read(struct thc_device *dev, void *write_buff, size_t write_len,
+		   u32 *prd_tbl_len, void *read_buff, size_t *read_len)
+{
+	int ret;
+
+	if (!(&dev->dma_ctx->dma_config[THC_SWDMA])->is_enabled) {
+		dev_err_once(dev->dev, "The SWDMA channel is not enabled");
+		return -EINVAL;
+	}
+
+	if (!read_buff || !read_len) {
+		dev_err(dev->dev, "Invalid input parameters, read_buff %p, read_len %p\n",
+			read_buff, read_len);
+		return -EINVAL;
+	}
+
+	if (mutex_lock_interruptible(&dev->thc_bus_lock))
+		return -EINTR;
+
+	dev->swdma_done = false;
+
+	ret = thc_swdma_read_start(dev, write_buff, write_len, prd_tbl_len);
+	if (ret)
+		goto end;
+
+	ret = wait_event_interruptible_timeout(dev->swdma_complete_wait, dev->swdma_done, 1 * HZ);
+	if (ret <= 0 || !dev->swdma_done) {
+		dev_err_once(dev->dev, "timeout for waiting SWDMA completion\n");
+		ret = -ETIMEDOUT;
+		goto end;
+	}
+
+	ret = thc_dma_read(dev, &dev->dma_ctx->dma_config[THC_SWDMA], read_buff, read_len, NULL);
+	if (ret)
+		goto end;
+
+	ret = thc_swdma_read_completion(dev);
+
+end:
+	mutex_unlock(&dev->thc_bus_lock);
+	return ret;
+}
+EXPORT_SYMBOL_NS_GPL(thc_swdma_read, INTEL_THC);
+
+static int write_dma_buffer(struct thc_device *dev,
+			    void *buffer, size_t buf_len)
+{
+	struct thc_dma_configuration *write_config = &dev->dma_ctx->dma_config[THC_TXDMA];
+	struct thc_prd_table *prd_tbl;
+	struct scatterlist *sg;
+	unsigned long len_left;
+	size_t ret;
+	u8 nent;
+	int i;
+
+	/* There is only one PRD table for write */
+	prd_tbl = &write_config->prd_tbls[0];
+
+	if (calc_prd_entries_num(prd_tbl, buf_len, &nent) < 0) {
+		dev_err(dev->dev, "Tx message length too big (%zu)\n", buf_len);
+		return -EOVERFLOW;
+	}
+
+	sg = write_config->sgls[0];
+	ret = sg_copy_from_buffer(sg, nent, buffer, buf_len);
+	if (ret != buf_len) {
+		dev_err_once(dev->dev, "Copied %zu bytes instead of requested %zu\n",
+			     ret, buf_len);
+		return -EIO;
+	}
+
+	prd_tbl = &write_config->prd_tbls[0];
+	len_left = buf_len;
+
+	for_each_sg(write_config->sgls[0], sg, write_config->sgls_nent[0], i) {
+		if (sg_dma_address(sg) == 0 || sg_dma_len(sg) == 0) {
+			dev_err_once(dev->dev, "SGList: zero address or length\n");
+			return -EINVAL;
+		}
+
+		prd_tbl->entries[i].dest_addr =
+				sg_dma_address(sg) >> THC_ADDRESS_SHIFT;
+
+		if (len_left < sg_dma_len(sg)) {
+			prd_tbl->entries[i].len = len_left;
+			prd_tbl->entries[i].end_of_prd = 1;
+			break;
+		}
+
+		prd_tbl->entries[i].len = sg_dma_len(sg);
+		prd_tbl->entries[i].end_of_prd = 0;
+
+		len_left -= sg_dma_len(sg);
+	}
+
+	dma_set_prd_control(dev, i, 0, write_config);
+
+	return 0;
+}
+
+static void thc_ensure_performance_limitations(struct thc_device *dev)
+{
+	unsigned long delay_usec = 0;
+	/*
+	 * Minimum amount of delay the THC / QUICKSPI driver must wait
+	 * between end of write operation and begin of read operation.
+	 * This value shall be in 10us multiples.
+	 */
+	if (dev->perf_limit > 0) {
+		delay_usec = dev->perf_limit * 10;
+		udelay(delay_usec);
+	}
+}
+
+static void thc_dma_write_completion(struct thc_device *dev)
+{
+	thc_ensure_performance_limitations(dev);
+}
+
+/**
+ * thc_dma_write - Use TXDMA to write data to touch device
+ *
+ * @dev: The pointer of THC private device context
+ * @buffer: The pointer of write data buffer
+ * @buf_len: The write data length
+ *
+ * Return: 0 on success, other error codes on failed.
+ */
+int thc_dma_write(struct thc_device *dev, void *buffer, size_t buf_len)
+{
+	bool restore_interrupts = false;
+	u32 sts, ctrl;
+	int ret;
+
+	if (!(&dev->dma_ctx->dma_config[THC_TXDMA])->is_enabled) {
+		dev_err_once(dev->dev, "The TxDMA channel is not enabled\n");
+		return -EINVAL;
+	}
+
+	if (!buffer || buf_len <= 0) {
+		dev_err(dev->dev, "Invalid input parameters, buffer %p\n, buf_len %zu\n",
+			buffer, buf_len);
+		return -EINVAL;
+	}
+
+	regmap_read(dev->thc_regmap, THC_M_PRT_WRITE_INT_STS_OFFSET, &sts);
+	if (sts & THC_M_PRT_WRITE_INT_STS_THC_WRDMA_ACTIVE) {
+		dev_err_once(dev->dev, "THC TxDMA is till active and can't start again\n");
+		return -EBUSY;
+	}
+
+	if (mutex_lock_interruptible(&dev->thc_bus_lock))
+		return -EINTR;
+
+	regmap_read(dev->thc_regmap, THC_M_PRT_CONTROL_OFFSET, &ctrl);
+
+	ret = write_dma_buffer(dev, buffer, buf_len);
+	if (ret)
+		goto end;
+
+	if (dev->perf_limit && !(ctrl & THC_M_PRT_CONTROL_THC_DEVINT_QUIESCE_HW_STS)) {
+		ret = thc_interrupt_quiesce(dev, true);
+		if (ret)
+			goto end;
+
+		restore_interrupts = true;
+	}
+
+	dev->write_done = false;
+
+	dma_set_start_bit(dev, &dev->dma_ctx->dma_config[THC_TXDMA]);
+
+	ret = wait_event_interruptible_timeout(dev->write_complete_wait, dev->write_done, 1 * HZ);
+	if (ret <= 0 || !dev->write_done) {
+		dev_err_once(dev->dev, "timeout for waiting TxDMA completion\n");
+		ret = -ETIMEDOUT;
+		goto end;
+	}
+
+	thc_dma_write_completion(dev);
+	mutex_unlock(&dev->thc_bus_lock);
+	return 0;
+
+end:
+	mutex_unlock(&dev->thc_bus_lock);
+
+	if (restore_interrupts)
+		ret = thc_interrupt_quiesce(dev, false);
+
+	return ret;
+}
+EXPORT_SYMBOL_NS_GPL(thc_dma_write, INTEL_THC);
diff --git a/drivers/hid/intel-thc-hid/intel-thc/intel-thc-dma.h b/drivers/hid/intel-thc-hid/intel-thc/intel-thc-dma.h
new file mode 100644
index 000000000000..ca923ff2bef9
--- /dev/null
+++ b/drivers/hid/intel-thc-hid/intel-thc/intel-thc-dma.h
@@ -0,0 +1,146 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2024 Intel Corporation */
+
+#ifndef _INTEL_THC_DMA_H_
+#define _INTEL_THC_DMA_H_
+
+#include <linux/bits.h>
+#include <linux/dma-mapping.h>
+#include <linux/sizes.h>
+#include <linux/time64.h>
+#include <linux/types.h>
+
+#define THC_POINTER_MASK		GENMASK(6, 0)
+#define THC_POINTER_WRAPAROUND		0x80
+#define THC_WRAPAROUND_VALUE_ODD	0x10
+#define THC_WRAPAROUND_VALUE_EVEN	0x90
+#define THC_MIN_BYTES_PER_SG_LIST_ENTRY SZ_4K
+
+#define THC_DEFAULT_RXDMA_POLLING_US_INTERVAL 100
+#define THC_DEFAULT_RXDMA_POLLING_US_TIMEOUT  (10 * USEC_PER_MSEC)
+
+/*
+ * THC needs 1KB aligned address, dest_addr is 54 bits, not 64,
+ * so don't need to send the lower 10-bits of address.
+ */
+#define THC_ADDRESS_SHIFT 10
+
+/**
+ * THC DMA channels:
+ * @THC_RXDMA1: legacy channel, reserved for raw data reading
+ * @THC_RXDMA2: DMA to read HID data from touch device
+ * @THC_TXDMA: DMA to write to touch device
+ * @THC_SWDMA: SW triggered DMA to write and read from touch device
+ */
+enum thc_dma_channel {
+	THC_RXDMA1 = 0,
+	THC_RXDMA2 = 1,
+	THC_TXDMA = 2,
+	THC_SWDMA = 3,
+	MAX_THC_DMA_CHANNEL
+};
+
+/**
+ * THC DMA Physical Memory Descriptor (PRD)
+ * @dest_addr:		bit[53:0], destination address in system memory
+ * @int_on_completion:	bit[63], if set, thc will trigger interrupt to driver
+ * @len:		bit[87:64], length of this entry
+ * @end_of_prd:		bit[88], if set, this entry is last one of current PRD table
+ * @hw_status:		bit[90:89], hw status bits
+ */
+struct thc_prd_entry {
+	u64  dest_addr : 54;
+	u64  reserved1 : 9;
+	u64  int_on_completion : 1;
+	u64  len : 24;
+	u64  end_of_prd : 1;
+	u64  hw_status : 2;
+	u64  reserved2 : 37;
+};
+
+/*
+ * Max OS memory fragmentation will be at a 4KB boundary, thus to address 1MB
+ * of virtually contiguous memory 256 PRD entries are required for a single
+ * PRD Table. SW writes the number of PRD Entries for each PRD table in the
+ * THC_M_PRT_RPRD_CNTRL.PTEC register field. The PRD entry's length must be
+ * multiple of 4KB except for the last entry in a PRD table.
+ * This is the max possible number of etries supported by HW, in practise we
+ * there will be less entries in each prd table(the actual number will be
+ * given by scatter-gather list allocation).
+ */
+#define PRD_ENTRIES_NUM 16
+
+/*
+ * Number of PRD tables equals to number of data buffers.
+ * The max number of PRD tables supported by the HW is 128,
+ * but we allocate only 16.
+ */
+#define PRD_TABLES_NUM  16
+
+/* THC DMA Physical Memory Descriptor Table */
+struct thc_prd_table {
+	struct thc_prd_entry entries[PRD_ENTRIES_NUM];
+};
+
+#define PRD_TABLE_SIZE	sizeof(struct thc_prd_table)
+
+/**
+ * struct thc_dma_configuration - THC DMA configure
+ * @dma_channel: DMA channel for current DMA configuration
+ * @prd_tbls_dma_handle: DMA buffer handle
+ * @dir: direction of DMA for this config
+ * @prd_tbls: PRD tables for current DMA
+ * @sgls: array of pointers to scatter-gather lists
+ * @sgls_nent: actual number of entries per sg list
+ * @prd_tbl_num: actual number of PRD tables
+ * @max_packet_size: size of the buffer needed for 1 DMA message (1 PRD table)
+ * @prd_base_addr_high: High 32bits memory address where stores PRD table
+ * @prd_base_addr_low: low 32bits memory address where stores PRD table
+ * @prd_cntrl: PRD control register value
+ * @dma_cntrl: DMA control register value
+ */
+struct thc_dma_configuration {
+	enum thc_dma_channel dma_channel;
+	dma_addr_t prd_tbls_dma_handle;
+	enum dma_data_direction dir;
+	bool is_enabled;
+
+	struct thc_prd_table *prd_tbls;
+	struct scatterlist *sgls[PRD_TABLES_NUM];
+	u8 sgls_nent[PRD_TABLES_NUM];
+	u8 prd_tbl_num;
+
+	size_t max_packet_size;
+	u32 prd_base_addr_high;
+	u32 prd_base_addr_low;
+	u32 prd_cntrl;
+	u32 dma_cntrl;
+};
+
+/*
+ * THC DMA context
+ * Store all THC Channel configures
+ */
+struct thc_dma_context {
+	struct thc_dma_configuration dma_config[MAX_THC_DMA_CHANNEL];
+	u8 use_write_interrupts;
+};
+
+struct thc_device;
+
+int  thc_dma_set_max_packet_sizes(struct thc_device *dev,
+				  size_t mps_read1, size_t mps_read2,
+				  size_t mps_write, size_t mps_swdma);
+int  thc_dma_allocate(struct thc_device *dev);
+int  thc_dma_configure(struct thc_device *dev);
+void thc_dma_unconfigure(struct thc_device *dev);
+void thc_dma_release(struct thc_device *dev);
+int  thc_rxdma_read(struct thc_device *dev, enum thc_dma_channel dma_channel,
+		    void *read_buff, size_t *read_len, int *read_finished);
+int  thc_swdma_read(struct thc_device *dev, void *write_buff, size_t write_len,
+		    u32 *prd_tbl_len, void *read_buff, size_t *read_len);
+int  thc_dma_write(struct thc_device *dev, void *buffer, size_t buf_len);
+
+struct thc_dma_context *thc_dma_init(struct thc_device *dev);
+
+#endif /* _INTEL_THC_DMA_H_ */
