diff --git a/drivers/firmware/qcom_scm-smc.c b/drivers/firmware/qcom_scm-smc.c
index 70f3b6f5330f..e0d4cc8f6fcc 100644
--- a/drivers/firmware/qcom_scm-smc.c
+++ b/drivers/firmware/qcom_scm-smc.c
@@ -1774,6 +1774,64 @@ int __qcom_scm_register_qsee_log_buf(struct device *dev, phys_addr_t buf,
 	return ret ? : desc.res[0];
 }
 
+int __qcom_scm_invoke_smc(struct device *dev, phys_addr_t in_buf,
+	size_t in_buf_size, phys_addr_t out_buf, size_t out_buf_size,
+	int32_t *result, u64 *response_type, unsigned int *data)
+{
+	int ret;
+	struct qcom_scm_desc desc = {
+		.svc = QCOM_SCM_SVC_SMCINVOKE,
+		.cmd = QCOM_SCM_SMCINVOKE_INVOKE,
+		.owner = ARM_SMCCC_OWNER_TRUSTED_OS
+	};
+
+	desc.args[0] = in_buf;
+	desc.args[1] = in_buf_size;
+	desc.args[2] = out_buf;
+	desc.args[3] = out_buf_size;
+	desc.arginfo = QCOM_SCM_ARGS(4, QCOM_SCM_RW, QCOM_SCM_VAL, QCOM_SCM_RW,
+					QCOM_SCM_VAL);
+
+	ret = qcom_scm_call(dev, &desc);
+
+	if (result)
+		*result = desc.res[1];
+
+	if (response_type)
+		*response_type = desc.res[0];
+
+	return ret;
+}
+
+int __qcom_scm_invoke_callback_response(struct device *dev, phys_addr_t out_buf,
+	size_t out_buf_size, int32_t *result, u64 *response_type,
+	unsigned int *data)
+{
+	int ret;
+	struct qcom_scm_desc desc = {
+		.svc = QCOM_SCM_SVC_SMCINVOKE,
+		.cmd = QCOM_SCM_SMCINVOKE_CB_RSP,
+		.owner = ARM_SMCCC_OWNER_TRUSTED_OS
+	};
+
+	desc.args[0] = out_buf;
+	desc.args[1] = out_buf_size;
+	desc.arginfo = QCOM_SCM_ARGS(2, QCOM_SCM_RW, QCOM_SCM_VAL);
+
+	ret = qcom_scm_call(dev, &desc);
+
+	if (result)
+		*result = desc.res[1];
+
+	if (response_type)
+		*response_type = desc.res[0];
+
+	if (data)
+		*data = desc.res[2];
+
+	return ret;
+}
+
 void __qcom_scm_init(void)
 {
 	__query_convention();
diff --git a/drivers/firmware/qcom_scm.c b/drivers/firmware/qcom_scm.c
index 477e99c53adf..056d8e298e16 100644
--- a/drivers/firmware/qcom_scm.c
+++ b/drivers/firmware/qcom_scm.c
@@ -814,6 +814,23 @@ int qcom_scm_register_qsee_log_buf(phys_addr_t buf, size_t len)
 }
 EXPORT_SYMBOL(qcom_scm_register_qsee_log_buf);
 
+int qcom_scm_invoke_smc(phys_addr_t in_buf, size_t in_buf_size,
+		phys_addr_t out_buf, size_t out_buf_size, int32_t *result,
+		u64 *response_type, unsigned int *data)
+{
+	return __qcom_scm_invoke_smc(__scm->dev, in_buf, in_buf_size, out_buf,
+			out_buf_size, result, response_type, data);
+}
+EXPORT_SYMBOL(qcom_scm_invoke_smc);
+
+int qcom_scm_invoke_callback_response(phys_addr_t out_buf,
+	size_t out_buf_size, int32_t *result, u64 *response_type,
+	unsigned int *data)
+{
+	return __qcom_scm_invoke_callback_response(__scm->dev, out_buf,
+			out_buf_size, result, response_type, data);
+}
+
 /**
  * qcom_scm_is_available() - Checks if SCM is available
  */
diff --git a/drivers/firmware/qcom_scm.h b/drivers/firmware/qcom_scm.h
index b7c315352b88..3608bb27f84b 100644
--- a/drivers/firmware/qcom_scm.h
+++ b/drivers/firmware/qcom_scm.h
@@ -218,6 +218,16 @@ extern int __qcom_scm_register_qsee_log_buf(struct device *dev, phys_addr_t buf,
 #define QCOM_SCM_ICE_RESTORE_KEY_ID	0x06
 extern int __qcom_scm_ice_restore_cfg(struct device *dev);
 
+#define QCOM_SCM_SVC_SMCINVOKE		0x06
+#define QCOM_SCM_SMCINVOKE_INVOKE	0x00
+#define QCOM_SCM_SMCINVOKE_CB_RSP	0x01
+extern int __qcom_scm_invoke_smc(struct device *dev, phys_addr_t in_buf,
+		size_t in_buf_size, phys_addr_t out_buf, size_t out_buf_size,
+		int32_t *result, u64 *response_type, unsigned int *data);
+extern int __qcom_scm_invoke_callback_response(struct device *dev,
+		phys_addr_t out_buf, size_t out_buf_size, int32_t *result,
+		u64 *response_type, unsigned int *data);
+
 extern void __qcom_scm_init(void);
 
 /* common error codes */
diff --git a/include/linux/qcom_scm.h b/include/linux/qcom_scm.h
index 8581a1056c4e..65df08faee23 100644
--- a/include/linux/qcom_scm.h
+++ b/include/linux/qcom_scm.h
@@ -122,6 +122,12 @@ extern int qcom_scm_camera_protect_phy_lanes(bool protect, u64 regmask);
 extern int qcom_scm_ice_restore_cfg(void);
 extern int qcom_scm_get_tz_log_feat_id(u64 *version);
 extern int qcom_scm_register_qsee_log_buf(phys_addr_t buf, size_t len);
+extern int qcom_scm_invoke_smc(phys_addr_t in_buf, size_t in_buf_size,
+		phys_addr_t out_buf, size_t out_buf_size, int32_t *result,
+		u64 *response_type, unsigned int *data);
+extern int qcom_scm_invoke_callback_response(phys_addr_t out_buf,
+		size_t out_buf_size, int32_t *result, u64 *response_type,
+		unsigned int *data);
 extern bool qcom_scm_is_available(void);
 #else
 
@@ -253,6 +259,12 @@ static inline int qcom_scm_get_tz_log_feat_id(u64 *version)
 		{ return -ENODEV; }
 static inline int qcom_scm_register_qsee_log_buf(phys_addr_t buf, size_t len)
 		{ return -ENODEV; }
+static inline int qcom_scm_invoke_smc(phys_addr_t in_buf, size_t in_buf_size,
+		phys_addr_t out_buf, size_t out_buf_size, int32_t *result,
+		u64 *request_type, unsigned int *data)	{ return -ENODEV; }
+static inline int qcom_scm_invoke_callback_response(phys_addr_t out_buf,
+		size_t out_buf_size, int32_t *result, u64 *request_type,
+		unsigned int *data)	{ return -ENODEV; }
 static inline bool qcom_scm_is_available(void) { return false; }
 #endif
 #endif