tests: drivers: tisci: TISCI driver test

TISCI driver test added to validate the TISCI API
functionality in Zephyr. This test is for the target
am243x_evm/am2434/r5f0_0.

Signed-off-by: Dave Joseph <d-joseph@ti.com>

tests/drivers/tisci/CMakeLists.txt

@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: Apache-2.0
+
+cmake_minimum_required(VERSION 3.20.0)
+find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
+project(tisci_test)
+
+target_sources(app PRIVATE src/main.c)

tests/drivers/tisci/prj.conf

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+CONFIG_ZTEST=y
+CONFIG_TISCI=y
+CONFIG_ASSERT=n

tests/drivers/tisci/src/main.c

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+/*
+ * Copyright (c) 2025 Texas Instruments Incorporated
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/ztest.h>
+#include <zephyr/device.h>
+#include <zephyr/devicetree.h>
+#include <zephyr/drivers/firmware/tisci/tisci.h>
+
+ZTEST(tisci, test_tisci_api)
+{
+	const struct device *dmsc = DEVICE_DT_GET(DT_NODELABEL(dmsc));
+
+	zassert_not_null(dmsc, "Unable to get dev");
+	zassert_true(device_is_ready(dmsc), "DMSC device not ready");
+
+	struct tisci_version_info ver;
+	int ret = tisci_cmd_get_revision(dmsc, &ver);
+
+	zassert_ok(ret, "Failed to get TISCI revision");
+
+	uint64_t freq = 0;
+
+	ret = tisci_cmd_clk_get_freq(dmsc, 152, 0, &freq);
+
+	zassert_ok(ret, "Failed to get clock freq");
+
+	uint64_t min_freq = 96000000, target_freq = 96000000, max_freq = 96000000;
+
+	ret = tisci_cmd_clk_set_freq(dmsc, 152, 0, min_freq, target_freq, max_freq);
+
+	zassert_ok(ret, "Failed to set clock freq");
+
+	freq = 0;
+	ret = tisci_cmd_clk_get_freq(dmsc, 152, 0, &freq);
+
+	zassert_ok(ret, "Failed to get clock freq after set");
+	zassert_equal(freq, target_freq, "Clock freq after set does not match target");
+
+	ret = tisci_cmd_get_device(dmsc, 0);
+
+	zassert_ok(ret, "Failed to turn ON power domain device 0");
+
+	uint32_t clcnt = 0, resets = 0;
+	uint8_t p_state = 0, c_state = 0;
+	int state_ret = tisci_get_device_state(dmsc, 0, &clcnt, &resets, &p_state, &c_state);
+
+	zassert_ok(state_ret, "Failed to get device 0 state after ON");
+
+	ret = tisci_cmd_put_device(dmsc, 0);
+
+	zassert_ok(ret, "Failed to turn OFF power domain device 0");
+
+	clcnt = resets = 0;
+	p_state = c_state = 0;
+	state_ret = tisci_get_device_state(dmsc, 0, &clcnt, &resets, &p_state, &c_state);
+
+	zassert_ok(state_ret, "Failed to get device 0 state after OFF");
+}
+
+ZTEST_SUITE(tisci, NULL, NULL, NULL, NULL, NULL);

tests/drivers/tisci/testcase.yaml

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+# Copyright 2025 Texas Instruments Incorporated
+# SPDX-License-Identifier: Apache-2.0
+
+tests:
+  drivers.tisci:
+    tags:
+      - drivers
+      - tisci
+    timeout: 500
+    integration_platforms:
+      - am243x_evm/am2434/r5f0_0
+    platform_allow:
+      - am243x_evm/am2434/r5f0_0