| // 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 scmi node. 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 <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 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); |
| ut_assertnonnull(scmi_devices); |
| ut_asserteq(2, scmi_devices->clk_count); |
| ut_asserteq(1, scmi_devices->reset_count); |
| 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(2, agent->clk_count); |
| ut_assertnonnull(agent->clk); |
| ut_asserteq(1, agent->reset_count); |
| ut_assertnonnull(agent->reset); |
| ut_asserteq(2, agent->voltd_count); |
| ut_assertnonnull(agent->voltd); |
| |
| 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 sandbox_scmi_agent *agent; |
| struct udevice *dev; |
| int ret_dev; |
| int ret; |
| |
| ret = load_sandbox_scmi_test_devices(uts, &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(1000, clk_get_rate(&scmi_devices->clk[0])); |
| ut_asserteq(333, clk_get_rate(&scmi_devices->clk[1])); |
| |
| ret_dev = clk_set_rate(&scmi_devices->clk[1], 1088); |
| ut_assert(!ret_dev || ret_dev == 1088); |
| |
| ut_asserteq(1000, agent->clk[0].rate); |
| ut_asserteq(1088, agent->clk[1].rate); |
| |
| ut_asserteq(1000, clk_get_rate(&scmi_devices->clk[0])); |
| ut_asserteq(1088, clk_get_rate(&scmi_devices->clk[1])); |
| |
| /* 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(!agent->clk[0].enabled); |
| ut_assert(!agent->clk[1].enabled); |
| ut_assert(!agent->clk[2].enabled); |
| |
| ut_asserteq(0, clk_enable(&scmi_devices->clk[1])); |
| |
| ut_assert(!agent->clk[0].enabled); |
| ut_assert(agent->clk[1].enabled); |
| ut_assert(!agent->clk[2].enabled); |
| |
| ut_assertok(clk_disable(&scmi_devices->clk[1])); |
| |
| ut_assert(!agent->clk[0].enabled); |
| ut_assert(!agent->clk[1].enabled); |
| ut_assert(!agent->clk[2].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 sandbox_scmi_agent *agent; |
| struct udevice *dev = NULL; |
| int ret; |
| |
| ret = load_sandbox_scmi_test_devices(uts, &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) |
| |
| ut_assertok(reset_assert(&scmi_devices->reset[0])); |
| ut_assert(agent->reset[0].asserted) |
| |
| ut_assertok(reset_deassert(&scmi_devices->reset[0])); |
| ut_assert(!agent->reset[0].asserted); |
| |
| return release_sandbox_scmi_test_devices(uts, dev); |
| } |
| 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 dm_regulator_uclass_plat *uc_pdata; |
| struct udevice *dev; |
| struct udevice *regul0_dev; |
| |
| ut_assertok(load_sandbox_scmi_test_devices(uts, &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]; |
| ut_assert(regul0_dev); |
| |
| uc_pdata = dev_get_uclass_plat(regul0_dev); |
| ut_assert(uc_pdata); |
| |
| ut_assertok(regulator_set_value(regul0_dev, uc_pdata->min_uV)); |
| ut_asserteq(agent->voltd[0].voltage_uv, uc_pdata->min_uV); |
| |
| ut_assert(regulator_get_value(regul0_dev) == uc_pdata->min_uV); |
| |
| ut_assertok(regulator_set_value(regul0_dev, uc_pdata->max_uV)); |
| ut_asserteq(agent->voltd[0].voltage_uv, uc_pdata->max_uV); |
| |
| ut_assert(regulator_get_value(regul0_dev) == uc_pdata->max_uV); |
| |
| /* Enable/disable SCMI voltage domains */ |
| ut_assertok(regulator_set_enable(scmi_devices->regul[0], false)); |
| ut_assertok(regulator_set_enable(scmi_devices->regul[1], false)); |
| ut_assert(!agent->voltd[0].enabled); |
| ut_assert(!agent->voltd[1].enabled); |
| |
| ut_assertok(regulator_set_enable(scmi_devices->regul[0], true)); |
| ut_assert(agent->voltd[0].enabled); |
| ut_assert(!agent->voltd[1].enabled); |
| |
| ut_assertok(regulator_set_enable(scmi_devices->regul[1], true)); |
| ut_assert(agent->voltd[0].enabled); |
| ut_assert(agent->voltd[1].enabled); |
| |
| ut_assertok(regulator_set_enable(scmi_devices->regul[0], false)); |
| ut_assert(!agent->voltd[0].enabled); |
| ut_assert(agent->voltd[1].enabled); |
| |
| return release_sandbox_scmi_test_devices(uts, dev); |
| } |
| DM_TEST(dm_test_scmi_voltage_domains, UT_TESTF_SCAN_FDT); |