Merge branch 'next'

Bring in the assorted changes that have been staged in the 'next' branch
prior to release.

Signed-off-by: Tom Rini <trini@konsulko.com>

1 files changed, 203 insertions, 0 deletions

diff --git a/test/dm/scmi.c b/test/dm/scmi.c
new file mode 100644
index 00000000000..be60b44b3b0
--- /dev/null
+++ b/test/dm/scmi.c
@@ -0,0 +1,203 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2020, Linaro Limited
+ *
+ * Tests scmi_agent uclass and the SCMI drivers implemented in other
+ * uclass devices probe when a SCMI server exposes resources.
+ *
+ * Note in test.dts the protocol@10 node in agent 1. Protocol 0x10 is not
+ * implemented in U-Boot SCMI components but the implementation is exepected
+ * to not complain on unknown protocol IDs, as long as it is not used. Note
+ * in test.dts tests that SCMI drivers probing does not fail for such an
+ * unknown SCMI protocol ID.
+ */
+
+#include <common.h>
+#include <clk.h>
+#include <dm.h>
+#include <reset.h>
+#include <asm/scmi_test.h>
+#include <dm/device-internal.h>
+#include <dm/test.h>
+#include <linux/kconfig.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);
+	if (scmi_ctx->agent_count)
+		ut_asserteq(2, scmi_ctx->agent_count);
+
+	return 0;
+}
+
+static int ut_assert_scmi_state_postprobe(struct unit_test_state *uts,
+					  struct udevice *dev)
+{
+	struct sandbox_scmi_devices *scmi_devices;
+	struct sandbox_scmi_service *scmi_ctx;
+
+	/* Device references to check context against test sequence */
+	scmi_devices = sandbox_scmi_devices_ctx(dev);
+
+	ut_assertnonnull(scmi_devices);
+	if (IS_ENABLED(CONFIG_CLK_SCMI))
+		ut_asserteq(3, scmi_devices->clk_count);
+	if (IS_ENABLED(CONFIG_RESET_SCMI))
+		ut_asserteq(1, scmi_devices->reset_count);
+
+	/* State of the simulated SCMI server exposed */
+	scmi_ctx = sandbox_scmi_service_ctx();
+
+	ut_asserteq(2, scmi_ctx->agent_count);
+
+	ut_assertnonnull(scmi_ctx->agent[0]);
+	ut_asserteq(2, scmi_ctx->agent[0]->clk_count);
+	ut_assertnonnull(scmi_ctx->agent[0]->clk);
+	ut_asserteq(1, scmi_ctx->agent[0]->reset_count);
+	ut_assertnonnull(scmi_ctx->agent[0]->reset);
+
+	ut_assertnonnull(scmi_ctx->agent[1]);
+	ut_assertnonnull(scmi_ctx->agent[1]->clk);
+	ut_asserteq(1, scmi_ctx->agent[1]->clk_count);
+
+	return 0;
+}
+
+static int load_sandbox_scmi_test_devices(struct unit_test_state *uts,
+					  struct udevice **dev)
+{
+	int ret;
+
+	ret = ut_assert_scmi_state_preprobe(uts);
+	if (ret)
+		return ret;
+
+	ut_assertok(uclass_get_device_by_name(UCLASS_MISC, "sandbox_scmi",
+					      dev));
+	ut_assertnonnull(*dev);
+
+	return ut_assert_scmi_state_postprobe(uts, *dev);
+}
+
+static int release_sandbox_scmi_test_devices(struct unit_test_state *uts,
+					     struct udevice *dev)
+{
+	ut_assertok(device_remove(dev, DM_REMOVE_NORMAL));
+
+	/* Not sure test devices are fully removed, agent may not be visible */
+	return 0;
+}
+
+/*
+ * Test SCMI states when loading and releasing resources
+ * related to SCMI drivers.
+ */
+static int dm_test_scmi_sandbox_agent(struct unit_test_state *uts)
+{
+	struct udevice *dev = NULL;
+	int ret;
+
+	ret = load_sandbox_scmi_test_devices(uts, &dev);
+	if (!ret)
+		ret = release_sandbox_scmi_test_devices(uts, dev);
+
+	return ret;
+}
+
+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 udevice *dev = NULL;
+	int ret_dev;
+	int ret;
+
+	if (!IS_ENABLED(CONFIG_CLK_SCMI))
+		return 0;
+
+	ret = load_sandbox_scmi_test_devices(uts, &dev);
+	if (ret)
+		return ret;
+
+	scmi_devices = sandbox_scmi_devices_ctx(dev);
+	scmi_ctx = sandbox_scmi_service_ctx();
+
+	/* Test SCMI clocks rate manipulation */
+	ut_asserteq(1000, clk_get_rate(&scmi_devices->clk[0]));
+	ut_asserteq(333, clk_get_rate(&scmi_devices->clk[1]));
+	ut_asserteq(44, clk_get_rate(&scmi_devices->clk[2]));
+
+	ret_dev = clk_set_rate(&scmi_devices->clk[1], 1088);
+	ut_assert(!ret_dev || ret_dev == 1088);
+
+	ut_asserteq(1000, scmi_ctx->agent[0]->clk[0].rate);
+	ut_asserteq(1088, scmi_ctx->agent[0]->clk[1].rate);
+	ut_asserteq(44, scmi_ctx->agent[1]->clk[0].rate);
+
+	ut_asserteq(1000, clk_get_rate(&scmi_devices->clk[0]));
+	ut_asserteq(1088, clk_get_rate(&scmi_devices->clk[1]));
+	ut_asserteq(44, clk_get_rate(&scmi_devices->clk[2]));
+
+	/* restore original rate for further tests */
+	ret_dev = clk_set_rate(&scmi_devices->clk[1], 333);
+	ut_assert(!ret_dev || ret_dev == 333);
+
+	/* Test SCMI clocks gating manipulation */
+	ut_assert(!scmi_ctx->agent[0]->clk[0].enabled);
+	ut_assert(!scmi_ctx->agent[0]->clk[1].enabled);
+	ut_assert(!scmi_ctx->agent[1]->clk[0].enabled);
+
+	ut_asserteq(0, clk_enable(&scmi_devices->clk[1]));
+	ut_asserteq(0, clk_enable(&scmi_devices->clk[2]));
+
+	ut_assert(!scmi_ctx->agent[0]->clk[0].enabled);
+	ut_assert(scmi_ctx->agent[0]->clk[1].enabled);
+	ut_assert(scmi_ctx->agent[1]->clk[0].enabled);
+
+	ut_assertok(clk_disable(&scmi_devices->clk[1]));
+	ut_assertok(clk_disable(&scmi_devices->clk[2]));
+
+	ut_assert(!scmi_ctx->agent[0]->clk[0].enabled);
+	ut_assert(!scmi_ctx->agent[0]->clk[1].enabled);
+	ut_assert(!scmi_ctx->agent[1]->clk[0].enabled);
+
+	return release_sandbox_scmi_test_devices(uts, dev);
+}
+
+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 udevice *dev = NULL;
+	int ret;
+
+	if (!IS_ENABLED(CONFIG_RESET_SCMI))
+		return 0;
+
+	ret = load_sandbox_scmi_test_devices(uts, &dev);
+	if (ret)
+		return ret;
+
+	scmi_devices = sandbox_scmi_devices_ctx(dev);
+	scmi_ctx = sandbox_scmi_service_ctx();
+
+	/* Test SCMI resect controller manipulation */
+	ut_assert(!scmi_ctx->agent[0]->reset[0].asserted)
+
+	ut_assertok(reset_assert(&scmi_devices->reset[0]));
+	ut_assert(scmi_ctx->agent[0]->reset[0].asserted)
+
+	ut_assertok(reset_deassert(&scmi_devices->reset[0]));
+	ut_assert(!scmi_ctx->agent[0]->reset[0].asserted);
+
+	return release_sandbox_scmi_test_devices(uts, dev);
+}
+
+DM_TEST(dm_test_scmi_resets, UT_TESTF_SCAN_FDT);