diff --git a/src/acpi/acpigen.c b/src/acpi/acpigen.c
index 308cf5ac85..eaf95e018f 100644
--- a/src/acpi/acpigen.c
+++ b/src/acpi/acpigen.c
@@ -1596,6 +1596,25 @@ void acpigen_write_if_lequal_op_op(uint8_t op1, uint8_t op2)
 	acpigen_emit_byte(op2);
 }
 
+/*
+ * Generates ACPI code for checking if operand1 and operand2 are not equal.
+ * Both operand1 and operand2 are ACPI ops.
+ *
+ * If (Lnotequal (op1, op2))
+ *
+ * This is equivalent to
+ *
+ * If (Lnot (Lequal (op1, op2)))
+ */
+void acpigen_write_if_lnotequal_op_op(uint8_t op1, uint8_t op2)
+{
+	acpigen_write_if();
+	acpigen_emit_byte(LNOT_OP);
+	acpigen_emit_byte(LEQUAL_OP);
+	acpigen_emit_byte(op1);
+	acpigen_emit_byte(op2);
+}
+
 /*
  * Generates ACPI code for checking if operand1 is greater than operand2.
  * Both operand1 and operand2 are ACPI ops.
@@ -1624,6 +1643,25 @@ void acpigen_write_if_lequal_op_int(uint8_t op, uint64_t val)
 	acpigen_write_integer(val);
 }
 
+/*
+ * Generates ACPI code for checking if operand1 and operand2 are not equal, where,
+ * operand1 is ACPI op and operand2 is an integer.
+ *
+ * If (Lnotequal (op, val))
+ *
+ * This is equivalent to
+ *
+ * If (Lnot (Lequal (op, val)))
+ */
+void acpigen_write_if_lnotequal_op_int(uint8_t op, uint64_t val)
+{
+	acpigen_write_if();
+	acpigen_emit_byte(LNOT_OP);
+	acpigen_emit_byte(LEQUAL_OP);
+	acpigen_emit_byte(op);
+	acpigen_write_integer(val);
+}
+
 /*
  * Generates ACPI code for checking if operand is greater than the value, where,
  * operand is ACPI op and val is an integer.
@@ -1652,6 +1690,25 @@ void acpigen_write_if_lequal_namestr_int(const char *namestr, uint64_t val)
 	acpigen_write_integer(val);
 }
 
+/*
+ * Generates ACPI code for checking if operand1 and operand2 are not equal, where,
+ * operand1 is namestring and operand2 is an integer.
+ *
+ * If (Lnotequal ("namestr", val))
+ *
+ * * This is equivalent to
+ *
+ * If (Lnot (Lequal ("namestr", val)))
+ */
+void acpigen_write_if_lnotequal_namestr_int(const char *namestr, uint64_t val)
+{
+	acpigen_write_if();
+	acpigen_emit_byte(LNOT_OP);
+	acpigen_emit_byte(LEQUAL_OP);
+	acpigen_emit_namestring(namestr);
+	acpigen_write_integer(val);
+}
+
 /*
  * Generates ACPI code for checking if operand1 and operand2 are equal, where,
  * operand1 is namestring and operand2 is an integer.
diff --git a/src/include/acpi/acpigen.h b/src/include/acpi/acpigen.h
index 8129263475..56b4f780f7 100644
--- a/src/include/acpi/acpigen.h
+++ b/src/include/acpi/acpigen.h
@@ -506,10 +506,13 @@ void acpigen_write_debug_sprintf(const char *fmt, ...) __printf(1, 2);
 void acpigen_write_if(void);
 void acpigen_write_if_and(uint8_t arg1, uint8_t arg2);
 void acpigen_write_if_lequal_op_op(uint8_t op, uint8_t val);
+void acpigen_write_if_lnotequal_op_op(uint8_t op, uint8_t val);
 void acpigen_write_if_lgreater_op_op(uint8_t op1, uint8_t op2);
 void acpigen_write_if_lequal_op_int(uint8_t op, uint64_t val);
+void acpigen_write_if_lnotequal_op_int(uint8_t op, uint64_t val);
 void acpigen_write_if_lgreater_op_int(uint8_t op, uint64_t val);
 void acpigen_write_if_lequal_namestr_int(const char *namestr, uint64_t val);
+void acpigen_write_if_lnotequal_namestr_int(const char *namestr, uint64_t val);
 void acpigen_write_if_lgreater_namestr_int(const char *namestr, uint64_t val);
 __always_inline void acpigen_write_if_end(void)
 {