diff --git a/drivers/firmware/scmi/sandbox-scmi_agent.c b/drivers/firmware/scmi/sandbox-scmi_agent.c
index d13180962662..1fc9a0f4ea7e 100644
--- a/drivers/firmware/scmi/sandbox-scmi_agent.c
+++ b/drivers/firmware/scmi/sandbox-scmi_agent.c
@@ -66,10 +66,18 @@ struct scmi_channel {
 };
 
 static u8 protocols[] = {
+#if IS_ENABLED(CONFIG_SCMI_POWER_DOMAIN)
 	SCMI_PROTOCOL_ID_POWER_DOMAIN,
+#endif
+#if IS_ENABLED(CONFIG_CLK_SCMI)
 	SCMI_PROTOCOL_ID_CLOCK,
+#endif
+#if IS_ENABLED(CONFIG_RESET_SCMI)
 	SCMI_PROTOCOL_ID_RESET_DOMAIN,
+#endif
+#if IS_ENABLED(CONFIG_DM_REGULATOR_SCMI)
 	SCMI_PROTOCOL_ID_VOLTAGE_DOMAIN,
+#endif
 };
 
 #define NUM_PROTOCOLS ARRAY_SIZE(protocols)
@@ -1160,6 +1168,9 @@ static int sandbox_scmi_test_process_msg(struct udevice *dev,
 		}
 		break;
 	case SCMI_PROTOCOL_ID_POWER_DOMAIN:
+		if (!IS_ENABLED(CONFIG_SCMI_POWER_DOMAIN))
+			goto not_supported;
+
 		switch (msg->message_id) {
 		case SCMI_PROTOCOL_VERSION:
 			return sandbox_scmi_pwd_protocol_version(dev, msg);
@@ -1180,6 +1191,9 @@ static int sandbox_scmi_test_process_msg(struct udevice *dev,
 		}
 		break;
 	case SCMI_PROTOCOL_ID_CLOCK:
+		if (!IS_ENABLED(CONFIG_CLK_SCMI))
+			goto not_supported;
+
 		switch (msg->message_id) {
 		case SCMI_PROTOCOL_ATTRIBUTES:
 			return sandbox_scmi_clock_protocol_attribs(dev, msg);
@@ -1196,6 +1210,9 @@ static int sandbox_scmi_test_process_msg(struct udevice *dev,
 		}
 		break;
 	case SCMI_PROTOCOL_ID_RESET_DOMAIN:
+		if (!IS_ENABLED(CONFIG_RESET_SCMI))
+			goto not_supported;
+
 		switch (msg->message_id) {
 		case SCMI_RESET_DOMAIN_ATTRIBUTES:
 			return sandbox_scmi_rd_attribs(dev, msg);
@@ -1206,6 +1223,9 @@ static int sandbox_scmi_test_process_msg(struct udevice *dev,
 		}
 		break;
 	case SCMI_PROTOCOL_ID_VOLTAGE_DOMAIN:
+		if (!IS_ENABLED(CONFIG_DM_REGULATOR_SCMI))
+			goto not_supported;
+
 		switch (msg->message_id) {
 		case SCMI_VOLTAGE_DOMAIN_ATTRIBUTES:
 			return sandbox_scmi_voltd_attribs(dev, msg);
@@ -1224,8 +1244,7 @@ static int sandbox_scmi_test_process_msg(struct udevice *dev,
 	case SCMI_PROTOCOL_ID_SYSTEM:
 	case SCMI_PROTOCOL_ID_PERF:
 	case SCMI_PROTOCOL_ID_SENSOR:
-		*(u32 *)msg->out_msg = SCMI_NOT_SUPPORTED;
-		return 0;
+		goto not_supported;
 	default:
 		break;
 	}
@@ -1239,6 +1258,10 @@ static int sandbox_scmi_test_process_msg(struct udevice *dev,
 	/* Intentionnaly report unhandled IDs through the SCMI return code */
 	*(u32 *)msg->out_msg = SCMI_PROTOCOL_ERROR;
 	return 0;
+
+not_supported:
+	*(u32 *)msg->out_msg = SCMI_NOT_SUPPORTED;
+	return 0;
 }
 
 static int sandbox_scmi_test_remove(struct udevice *dev)
diff --git a/drivers/firmware/scmi/sandbox-scmi_devices.c b/drivers/firmware/scmi/sandbox-scmi_devices.c
index facb5b06ffb5..0519cf889aa9 100644
--- a/drivers/firmware/scmi/sandbox-scmi_devices.c
+++ b/drivers/firmware/scmi/sandbox-scmi_devices.c
@@ -62,12 +62,13 @@ static int sandbox_scmi_devices_remove(struct udevice *dev)
 	if (!devices)
 		return 0;
 
-	for (n = 0; n < SCMI_TEST_DEVICES_RD_COUNT; n++) {
-		int ret2 = reset_free(devices->reset + n);
+	if (IS_ENABLED(CONFIG_RESET_SCMI))
+		for (n = 0; n < SCMI_TEST_DEVICES_RD_COUNT; n++) {
+			int ret2 = reset_free(devices->reset + n);
 
-		if (ret2 && !ret)
-			ret = ret2;
-	}
+			if (ret2 && !ret)
+				ret = ret2;
+		}
 
 	return ret;
 }
@@ -89,39 +90,53 @@ static int sandbox_scmi_devices_probe(struct udevice *dev)
 		.regul_count = SCMI_TEST_DEVICES_VOLTD_COUNT,
 	};
 
-	ret = power_domain_get_by_index(dev, priv->devices.pwdom, 0);
-	if (ret) {
-		dev_err(dev, "%s: Failed on power domain\n", __func__);
-		return ret;
-	}
-
-	for (n = 0; n < SCMI_TEST_DEVICES_CLK_COUNT; n++) {
-		ret = clk_get_by_index(dev, n, priv->devices.clk + n);
+	if (IS_ENABLED(CONFIG_SCMI_POWER_DOMAIN)) {
+		ret = power_domain_get_by_index(dev, priv->devices.pwdom, 0);
 		if (ret) {
-			dev_err(dev, "%s: Failed on clk %zu\n", __func__, n);
+			dev_err(dev, "%s: Failed on power domain\n", __func__);
 			return ret;
 		}
 	}
 
-	for (n = 0; n < SCMI_TEST_DEVICES_RD_COUNT; n++) {
-		ret = reset_get_by_index(dev, n, priv->devices.reset + n);
-		if (ret) {
-			dev_err(dev, "%s: Failed on reset %zu\n", __func__, n);
-			goto err_reset;
+	if (IS_ENABLED(CONFIG_CLK_SCMI)) {
+		for (n = 0; n < SCMI_TEST_DEVICES_CLK_COUNT; n++) {
+			ret = clk_get_by_index(dev, n, priv->devices.clk + n);
+			if (ret) {
+				dev_err(dev, "%s: Failed on clk %zu\n",
+					__func__, n);
+				return ret;
+			}
 		}
 	}
 
-	for (n = 0; n < SCMI_TEST_DEVICES_VOLTD_COUNT; n++) {
-		char name[32];
-
-		ret = snprintf(name, sizeof(name), "regul%zu-supply", n);
-		assert(ret >= 0 && ret < sizeof(name));
+	if (IS_ENABLED(CONFIG_RESET_SCMI)) {
+		for (n = 0; n < SCMI_TEST_DEVICES_RD_COUNT; n++) {
+			ret = reset_get_by_index(dev, n,
+						 priv->devices.reset + n);
+			if (ret) {
+				dev_err(dev, "%s: Failed on reset %zu\n",
+					__func__, n);
+				goto err_reset;
+			}
+		}
+	}
 
-		ret = device_get_supply_regulator(dev, name,
-						  priv->devices.regul + n);
-		if (ret) {
-			dev_err(dev, "%s: Failed on voltd %zu\n", __func__, n);
-			goto err_regul;
+	if (IS_ENABLED(CONFIG_DM_REGULATOR_SCMI)) {
+		for (n = 0; n < SCMI_TEST_DEVICES_VOLTD_COUNT; n++) {
+			char name[32];
+
+			ret = snprintf(name, sizeof(name), "regul%zu-supply",
+				       n);
+			assert(ret >= 0 && ret < sizeof(name));
+
+			ret = device_get_supply_regulator(dev, name,
+							  priv->devices.regul
+								+ n);
+			if (ret) {
+				dev_err(dev, "%s: Failed on voltd %zu\n",
+					__func__, n);
+				goto err_regul;
+			}
 		}
 	}
 
@@ -130,8 +145,9 @@ static int sandbox_scmi_devices_probe(struct udevice *dev)
 err_regul:
 	n = SCMI_TEST_DEVICES_RD_COUNT;
 err_reset:
-	for (; n > 0; n--)
-		reset_free(priv->devices.reset + n - 1);
+	if (IS_ENABLED(CONFIG_RESET_SCMI))
+		for (; n > 0; n--)
+			reset_free(priv->devices.reset + n - 1);
 
 	return ret;
 }
