diff --git a/arch/sandbox/include/asm/scmi_test.h b/arch/sandbox/include/asm/scmi_test.h
index c72ec1e1cb25..2718336a9a50 100644
--- a/arch/sandbox/include/asm/scmi_test.h
+++ b/arch/sandbox/include/asm/scmi_test.h
@@ -89,10 +89,11 @@ struct sandbox_scmi_devices {
 
 #ifdef CONFIG_SCMI_FIRMWARE
 /**
- * sandbox_scmi_service_ctx - Get the simulated SCMI services context
+ * sandbox_scmi_agent_ctx - Get the simulated SCMI agent context
+ * @dev:	Reference to the test agent
  * @return:	Reference to backend simulated resources state
  */
-struct sandbox_scmi_service *sandbox_scmi_service_ctx(void);
+struct sandbox_scmi_agent *sandbox_scmi_agent_ctx(struct udevice *dev);
 
 /**
  * sandbox_scmi_devices_ctx - Get references to devices accessed through SCMI
@@ -101,7 +102,7 @@ struct sandbox_scmi_service *sandbox_scmi_service_ctx(void);
  */
 struct sandbox_scmi_devices *sandbox_scmi_devices_ctx(struct udevice *dev);
 #else
-static inline struct sandbox_scmi_service *sandbox_scmi_service_ctx(void)
+static struct sandbox_scmi_agent *sandbox_scmi_agent_ctx(struct udevice *dev)
 {
 	return NULL;
 }
diff --git a/drivers/firmware/scmi/sandbox-scmi_agent.c b/drivers/firmware/scmi/sandbox-scmi_agent.c
index 1f0261ea5c94..ab8afb01de40 100644
--- a/drivers/firmware/scmi/sandbox-scmi_agent.c
+++ b/drivers/firmware/scmi/sandbox-scmi_agent.c
@@ -66,11 +66,9 @@ static struct sandbox_scmi_voltd scmi_voltd[] = {
 	{ .id = 1, .voltage_uv = 1800000 },
 };
 
-static struct sandbox_scmi_service sandbox_scmi_service_state;
-
-struct sandbox_scmi_service *sandbox_scmi_service_ctx(void)
+struct sandbox_scmi_agent *sandbox_scmi_agent_ctx(struct udevice *dev)
 {
-	return &sandbox_scmi_service_state;
+	return dev_get_priv(dev);
 }
 
 static void debug_print_agent_state(struct udevice *dev, char *str)
@@ -898,16 +896,8 @@ static int sandbox_scmi_test_process_msg(struct udevice *dev,
 
 static int sandbox_scmi_test_remove(struct udevice *dev)
 {
-	struct sandbox_scmi_agent *agent = dev_get_priv(dev);
-
-	if (agent != sandbox_scmi_service_ctx()->agent)
-		return -EINVAL;
-
 	debug_print_agent_state(dev, "removed");
 
-	/* We only need to dereference the agent in the context */
-	sandbox_scmi_service_ctx()->agent = NULL;
-
 	return 0;
 }
 
@@ -915,9 +905,6 @@ static int sandbox_scmi_test_probe(struct udevice *dev)
 {
 	struct sandbox_scmi_agent *agent = dev_get_priv(dev);
 
-	if (sandbox_scmi_service_ctx()->agent)
-		return -EINVAL;
-
 	*agent = (struct sandbox_scmi_agent){
 		.clk = scmi_clk,
 		.clk_count = ARRAY_SIZE(scmi_clk),
@@ -929,9 +916,6 @@ static int sandbox_scmi_test_probe(struct udevice *dev)
 
 	debug_print_agent_state(dev, "probed");
 
-	/* Save reference for tests purpose */
-	sandbox_scmi_service_ctx()->agent = agent;
-
 	return 0;
 };
 
diff --git a/drivers/firmware/scmi/scmi_agent-uclass.c b/drivers/firmware/scmi/scmi_agent-uclass.c
index ec15580cc947..4526f75486ed 100644
--- a/drivers/firmware/scmi/scmi_agent-uclass.c
+++ b/drivers/firmware/scmi/scmi_agent-uclass.c
@@ -37,12 +37,6 @@ static const struct error_code scmi_linux_errmap[] = {
 	{ .scmi = SCMI_PROTOCOL_ERROR, .errno = -EPROTO, },
 };
 
-/*
- * NOTE: The only one instance should exist according to
- * the current specification and device tree bindings.
- */
-struct udevice *scmi_agent;
-
 struct udevice *scmi_get_protocol(struct udevice *dev,
 				  enum scmi_std_protocol id)
 {
@@ -150,11 +144,6 @@ static int scmi_bind_protocols(struct udevice *dev)
 	struct driver *drv;
 	struct udevice *proto;
 
-	if (scmi_agent) {
-		dev_err(dev, "SCMI agent already exists: %s\n", dev->name);
-		return -EBUSY;
-	}
-
 	drv = DM_DRIVER_GET(scmi_base_drv);
 	name = "scmi-base.0";
 	ret = device_bind(dev, drv, name, NULL, ofnode_null(), &proto);
@@ -222,9 +211,6 @@ static int scmi_bind_protocols(struct udevice *dev)
 		}
 	}
 
-	if (!ret)
-		scmi_agent = dev;
-
 	return ret;
 }
 
diff --git a/test/dm/scmi.c b/test/dm/scmi.c
index d87e2731ce42..881be3171b7c 100644
--- a/test/dm/scmi.c
+++ b/test/dm/scmi.c
@@ -23,22 +23,11 @@
 #include <power/regulator.h>
 #include <test/ut.h>
 
-static int ut_assert_scmi_state_preprobe(struct unit_test_state *uts)
-{
-	struct sandbox_scmi_service *scmi_ctx = sandbox_scmi_service_ctx();
-
-	ut_assertnonnull(scmi_ctx);
-	ut_assertnull(scmi_ctx->agent);
-
-	return 0;
-}
-
 static int ut_assert_scmi_state_postprobe(struct unit_test_state *uts,
+					  struct sandbox_scmi_agent *agent,
 					  struct udevice *dev)
 {
 	struct sandbox_scmi_devices *scmi_devices;
-	struct sandbox_scmi_service *scmi_ctx;
-	struct sandbox_scmi_agent *agent;
 
 	/* Device references to check context against test sequence */
 	scmi_devices = sandbox_scmi_devices_ctx(dev);
@@ -48,10 +37,6 @@ static int ut_assert_scmi_state_postprobe(struct unit_test_state *uts,
 	ut_asserteq(2, scmi_devices->regul_count);
 
 	/* State of the simulated SCMI server exposed */
-	scmi_ctx = sandbox_scmi_service_ctx();
-	ut_assertnonnull(scmi_ctx);
-	agent = scmi_ctx->agent;
-	ut_assertnonnull(agent);
 	ut_asserteq(3, agent->clk_count);
 	ut_assertnonnull(agent->clk);
 	ut_asserteq(1, agent->reset_count);
@@ -63,27 +48,32 @@ static int ut_assert_scmi_state_postprobe(struct unit_test_state *uts,
 }
 
 static int load_sandbox_scmi_test_devices(struct unit_test_state *uts,
+					  struct sandbox_scmi_agent **ctx,
 					  struct udevice **dev)
 {
-	int ret;
+	struct udevice *agent_dev;
 
-	ret = ut_assert_scmi_state_preprobe(uts);
-	if (ret)
-		return ret;
+	ut_assertok(uclass_get_device_by_name(UCLASS_SCMI_AGENT, "scmi",
+					      &agent_dev));
+	ut_assertnonnull(agent_dev);
+
+	*ctx = sandbox_scmi_agent_ctx(agent_dev);
+	ut_assertnonnull(*ctx);
 
+	/* probe */
 	ut_assertok(uclass_get_device_by_name(UCLASS_MISC, "sandbox_scmi",
 					      dev));
 	ut_assertnonnull(*dev);
 
-	return ut_assert_scmi_state_postprobe(uts, *dev);
+	return ut_assert_scmi_state_postprobe(uts, *ctx, *dev);
 }
 
 static int release_sandbox_scmi_test_devices(struct unit_test_state *uts,
 					     struct udevice *dev)
 {
+	/* un-probe */
 	ut_assertok(device_remove(dev, DM_REMOVE_NORMAL));
 
-	/* Not sure test devices are fully removed, agent may not be visible */
 	return 0;
 }
 
@@ -93,10 +83,11 @@ static int release_sandbox_scmi_test_devices(struct unit_test_state *uts,
  */
 static int dm_test_scmi_sandbox_agent(struct unit_test_state *uts)
 {
+	struct sandbox_scmi_agent *ctx;
 	struct udevice *dev = NULL;
 	int ret;
 
-	ret = load_sandbox_scmi_test_devices(uts, &dev);
+	ret = load_sandbox_scmi_test_devices(uts, &ctx, &dev);
 	if (!ret)
 		ret = release_sandbox_scmi_test_devices(uts, dev);
 
@@ -106,23 +97,18 @@ DM_TEST(dm_test_scmi_sandbox_agent, UT_TESTF_SCAN_FDT);
 
 static int dm_test_scmi_clocks(struct unit_test_state *uts)
 {
-	struct sandbox_scmi_devices *scmi_devices;
-	struct sandbox_scmi_service *scmi_ctx;
 	struct sandbox_scmi_agent *agent;
+	struct sandbox_scmi_devices *scmi_devices;
 	struct udevice *dev;
 	int ret_dev;
 	int ret;
 
-	ret = load_sandbox_scmi_test_devices(uts, &dev);
+	ret = load_sandbox_scmi_test_devices(uts, &agent, &dev);
 	if (ret)
 		return ret;
 
 	scmi_devices = sandbox_scmi_devices_ctx(dev);
 	ut_assertnonnull(scmi_devices);
-	scmi_ctx = sandbox_scmi_service_ctx();
-	ut_assertnonnull(scmi_ctx);
-	agent = scmi_ctx->agent;
-	ut_assertnonnull(agent);
 
 	/* Test SCMI clocks rate manipulation */
 	ut_asserteq(333, agent->clk[0].rate);
@@ -169,22 +155,17 @@ DM_TEST(dm_test_scmi_clocks, UT_TESTF_SCAN_FDT);
 
 static int dm_test_scmi_resets(struct unit_test_state *uts)
 {
-	struct sandbox_scmi_devices *scmi_devices;
-	struct sandbox_scmi_service *scmi_ctx;
 	struct sandbox_scmi_agent *agent;
+	struct sandbox_scmi_devices *scmi_devices;
 	struct udevice *dev = NULL;
 	int ret;
 
-	ret = load_sandbox_scmi_test_devices(uts, &dev);
+	ret = load_sandbox_scmi_test_devices(uts, &agent, &dev);
 	if (ret)
 		return ret;
 
 	scmi_devices = sandbox_scmi_devices_ctx(dev);
 	ut_assertnonnull(scmi_devices);
-	scmi_ctx = sandbox_scmi_service_ctx();
-	ut_assertnonnull(scmi_ctx);
-	agent = scmi_ctx->agent;
-	ut_assertnonnull(agent);
 
 	/* Test SCMI resect controller manipulation */
 	ut_assert(!agent->reset[0].asserted);
@@ -201,21 +182,16 @@ DM_TEST(dm_test_scmi_resets, UT_TESTF_SCAN_FDT);
 
 static int dm_test_scmi_voltage_domains(struct unit_test_state *uts)
 {
-	struct sandbox_scmi_devices *scmi_devices;
-	struct sandbox_scmi_service *scmi_ctx;
 	struct sandbox_scmi_agent *agent;
+	struct sandbox_scmi_devices *scmi_devices;
 	struct dm_regulator_uclass_plat *uc_pdata;
 	struct udevice *dev;
 	struct udevice *regul0_dev;
 
-	ut_assertok(load_sandbox_scmi_test_devices(uts, &dev));
+	ut_assertok(load_sandbox_scmi_test_devices(uts, &agent, &dev));
 
 	scmi_devices = sandbox_scmi_devices_ctx(dev);
 	ut_assertnonnull(scmi_devices);
-	scmi_ctx = sandbox_scmi_service_ctx();
-	ut_assertnonnull(scmi_ctx);
-	agent = scmi_ctx->agent;
-	ut_assertnonnull(agent);
 
 	/* Set/Get an SCMI voltage domain level */
 	regul0_dev = scmi_devices->regul[0];
