diff --git a/drivers/spi/spi-mem.c b/drivers/spi/spi-mem.c
index c64371ce6c38..dc713b0c3c4d 100644
--- a/drivers/spi/spi-mem.c
+++ b/drivers/spi/spi-mem.c
@@ -137,8 +137,8 @@ static int spi_check_buswidth_req(struct spi_mem *mem, u8 buswidth, bool tx)
 	return -ENOTSUPP;
 }
 
-bool spi_mem_default_supports_op(struct spi_mem *mem,
-				 const struct spi_mem_op *op)
+static bool spi_mem_check_buswidth(struct spi_mem *mem,
+				   const struct spi_mem_op *op)
 {
 	if (spi_check_buswidth_req(mem, op->cmd.buswidth, true))
 		return false;
@@ -156,13 +156,29 @@ bool spi_mem_default_supports_op(struct spi_mem *mem,
 				   op->data.dir == SPI_MEM_DATA_OUT))
 		return false;
 
+	return true;
+}
+
+bool spi_mem_dtr_supports_op(struct spi_mem *mem,
+			     const struct spi_mem_op *op)
+{
+	if (op->cmd.nbytes != 2)
+		return false;
+
+	return spi_mem_check_buswidth(mem, op);
+}
+EXPORT_SYMBOL_GPL(spi_mem_dtr_supports_op);
+
+bool spi_mem_default_supports_op(struct spi_mem *mem,
+				 const struct spi_mem_op *op)
+{
 	if (op->cmd.dtr || op->addr.dtr || op->dummy.dtr || op->data.dtr)
 		return false;
 
 	if (op->cmd.nbytes != 1)
 		return false;
 
-	return true;
+	return spi_mem_check_buswidth(mem, op);
 }
 EXPORT_SYMBOL_GPL(spi_mem_default_supports_op);
 
diff --git a/include/linux/spi/spi-mem.h b/include/linux/spi/spi-mem.h
index 159463cc659c..2b65c9edc34e 100644
--- a/include/linux/spi/spi-mem.h
+++ b/include/linux/spi/spi-mem.h
@@ -311,6 +311,9 @@ void spi_controller_dma_unmap_mem_op_data(struct spi_controller *ctlr,
 bool spi_mem_default_supports_op(struct spi_mem *mem,
 				 const struct spi_mem_op *op);
 
+bool spi_mem_dtr_supports_op(struct spi_mem *mem,
+			     const struct spi_mem_op *op);
+
 #else
 static inline int
 spi_controller_dma_map_mem_op_data(struct spi_controller *ctlr,
@@ -334,6 +337,12 @@ bool spi_mem_default_supports_op(struct spi_mem *mem,
 	return false;
 }
 
+static inline
+bool spi_mem_dtr_supports_op(struct spi_mem *mem,
+			     const struct spi_mem_op *op)
+{
+	return false;
+}
 #endif /* CONFIG_SPI_MEM */
 
 int spi_mem_adjust_op_size(struct spi_mem *mem, struct spi_mem_op *op);