test/dm/simple-pm-bus.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (C) 2020 Sean Anderson <[email protected]>
   4  */
   5
   6 #include <dm.h>
   7 #include <dm/test.h>
   8 #include <dm/device-internal.h>
   9 #include <test/ut.h>
  10 #include <asm/clk.h>
  11 #include <asm/power-domain.h>
  12
  13 /* These must match the ids in the device tree */
  14 #define TEST_CLOCK_ID 4
  15 #define TEST_POWER_ID 1
  16
  17 static int dm_test_simple_pm_bus(struct unit_test_state *uts)
  18 {
  19         struct udevice *power;
  20         struct udevice *clock;
  21         struct udevice *bus;
  22
  23         ut_assertok(uclass_get_device_by_name(UCLASS_POWER_DOMAIN,
  24                                               "power-domain", &power));
  25         ut_assertok(uclass_get_device_by_name(UCLASS_CLK, "clk-sbox",
  26                                               &clock));
  27         ut_asserteq(0, sandbox_power_domain_query(power, TEST_POWER_ID));
  28         ut_asserteq(0, sandbox_clk_query_enable(clock, TEST_CLOCK_ID));
  29
  30         ut_assertok(uclass_get_device_by_name(UCLASS_SIMPLE_BUS, "pm-bus-test",
  31                                               &bus));
  32         ut_asserteq(1, sandbox_power_domain_query(power, TEST_POWER_ID));
  33         ut_asserteq(1, sandbox_clk_query_enable(clock, TEST_CLOCK_ID));
  34
  35         ut_assertok(device_remove(bus, DM_REMOVE_NORMAL));
  36         /* must re-probe since device_remove also removes the power domain */
  37         ut_assertok(uclass_get_device_by_name(UCLASS_POWER_DOMAIN,
  38                                               "power-domain", &power));
  39         ut_asserteq(0, sandbox_power_domain_query(power, TEST_POWER_ID));
  40         ut_asserteq(0, sandbox_clk_query_enable(clock, TEST_CLOCK_ID));
  41
  42         return 0;
  43 }
  44 DM_TEST(dm_test_simple_pm_bus, UTF_SCAN_FDT);