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-rw-r--r--test/dm/Makefile1
-rw-r--r--test/dm/acpi.c2
-rw-r--r--test/dm/pmbus.c242
-rw-r--r--test/dm/regulator.c38
-rw-r--r--test/dm/reset.c107
-rw-r--r--test/dm/sysinfo.c16
6 files changed, 405 insertions, 1 deletions
diff --git a/test/dm/Makefile b/test/dm/Makefile
index 0e3c63568dd..76aa1fff9ba 100644
--- a/test/dm/Makefile
+++ b/test/dm/Makefile
@@ -95,6 +95,7 @@ obj-$(CONFIG_PINCONF) += pinmux.o
endif
obj-$(CONFIG_POWER_DOMAIN) += power-domain.o
obj-$(CONFIG_ACPI_PMC) += pmc.o
+obj-$(CONFIG_CMD_PMBUS) += pmbus.o
obj-$(CONFIG_DM_PMIC) += pmic.o
obj-$(CONFIG_DM_PWM) += pwm.o
obj-$(CONFIG_ARM_FFA_TRANSPORT) += ffa.o
diff --git a/test/dm/acpi.c b/test/dm/acpi.c
index 2de7983f9ae..293ea0274b5 100644
--- a/test/dm/acpi.c
+++ b/test/dm/acpi.c
@@ -136,7 +136,7 @@ static int testacpi_inject_dsdt(const struct udevice *dev, struct acpi_ctx *ctx)
return 0;
}
-struct acpi_ops testacpi_ops = {
+static const struct acpi_ops testacpi_ops = {
.get_name = testacpi_get_name,
.write_tables = testacpi_write_tables,
.fill_madt = testacpi_fill_madt,
diff --git a/test/dm/pmbus.c b/test/dm/pmbus.c
new file mode 100644
index 00000000000..0184b201829
--- /dev/null
+++ b/test/dm/pmbus.c
@@ -0,0 +1,242 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2026 Free Mobile - Vincent Jardin
+ *
+ * Unit tests for the PMBus 1.x framework, the generic
+ * PMBus regulator and the pmbus CLI command.
+ */
+
+#include <dm.h>
+#include <i2c.h>
+#include <pmbus.h>
+#include <dm/test.h>
+#include <test/test.h>
+#include <test/ut.h>
+
+/* The line pmbus dev prints when a chip is selected */
+#define PMBUS_ACTIVE_LINE \
+ "pmbus: active i2c0:0x70 rail=\"sandbox-pmbus-vout\" " \
+ "MFR_ID=\"SANDBOX\" MODEL=\"PMBUS-EMUL\" vendor=(generic)"
+
+/* The line pmbus list prints for the bound chip */
+#define PMBUS_LIST_LINE \
+ " i2c0:0x70 rail=\"sandbox-pmbus-vout\" node=pmbus@70 " \
+ "driver=pmbus_generic_regulator"
+
+/* Select the emulated chip and check the resulting banner line */
+static int pmbus_select(struct unit_test_state *uts)
+{
+ ut_assertok(run_command("pmbus dev 0:70", 0));
+ ut_assert_nextline(PMBUS_ACTIVE_LINE);
+ return 0;
+}
+
+/* The chip is reachable via UCLASS_REGULATOR (compatible = "pmbus") */
+static int dm_test_pmbus_bind(struct unit_test_state *uts)
+{
+ struct udevice *dev;
+
+ ut_assertok(uclass_get_device_by_name(UCLASS_REGULATOR, "pmbus@70",
+ &dev));
+ ut_asserteq_str("pmbus_generic_regulator", dev->driver->name);
+ ut_asserteq(UCLASS_I2C, device_get_uclass_id(dev_get_parent(dev)));
+
+ return 0;
+}
+
+DM_TEST(dm_test_pmbus_bind, UTF_SCAN_FDT);
+
+/* pmbus dev by <bus>:<addr> and by regulator-name select the chip */
+static int dm_test_pmbus_dev(struct unit_test_state *uts)
+{
+ ut_assertok(run_command("pmbus dev 0:70", 0));
+ ut_assert_nextline(PMBUS_ACTIVE_LINE);
+ ut_assert_console_end();
+
+ /* Selecting by DT regulator-name resolves to the same chip */
+ ut_assertok(run_command("pmbus dev sandbox-pmbus-vout", 0));
+ ut_assert_nextline(PMBUS_ACTIVE_LINE);
+ ut_assert_console_end();
+
+ /* pmbus dev with no argument reprints the active chip */
+ ut_assertok(run_command("pmbus dev", 0));
+ ut_assert_nextline(PMBUS_ACTIVE_LINE);
+ ut_assert_console_end();
+
+ return 0;
+}
+
+DM_TEST(dm_test_pmbus_dev, UTF_SCAN_FDT | UTF_CONSOLE);
+
+/* pmbus list enumerates the bound chip among the UCLASS_REGULATOR devices */
+static int dm_test_pmbus_list(struct unit_test_state *uts)
+{
+ ut_assertok(run_command("pmbus list", 0));
+ ut_assert_skip_to_line(PMBUS_LIST_LINE);
+
+ return 0;
+}
+
+DM_TEST(dm_test_pmbus_list, UTF_SCAN_FDT | UTF_CONSOLE);
+
+/* pmbus info decodes identification + the detected driver_info */
+static int dm_test_pmbus_info(struct unit_test_state *uts)
+{
+ ut_assertok(pmbus_select(uts));
+
+ ut_assertok(run_command("pmbus info", 0));
+ ut_assert_nextline("pmbus device i2c0:0x70");
+ ut_assert_nextline(" regulator-name: \"sandbox-pmbus-vout\"");
+ ut_assert_nextline(" MFR_ID : \"SANDBOX\"");
+ ut_assert_nextline(" MFR_MODEL : \"PMBUS-EMUL\"");
+ ut_assert_nextline(" MFR_REVISION : \"1.0\" raw=0x312e30");
+ ut_assert_nextline(" PMBUS_REVISION: 0x33 (PMBus 1.3)");
+ ut_assert_nextline(" vendor : (none)");
+ ut_assert_nextline(" driver_info : pages=1");
+ ut_assert_nextline(" [VOLTAGE_IN ] format=LINEAR");
+ ut_assert_nextline(" [VOLTAGE_OUT ] format=LINEAR");
+ ut_assert_nextline(" [CURRENT_IN ] format=LINEAR");
+ ut_assert_nextline(" [CURRENT_OUT ] format=LINEAR");
+ ut_assert_nextline(" [POWER ] format=LINEAR");
+ ut_assert_nextline(" [TEMPERATURE ] format=LINEAR");
+ ut_assert_console_end();
+
+ return 0;
+}
+
+DM_TEST(dm_test_pmbus_info, UTF_SCAN_FDT | UTF_CONSOLE);
+
+/*
+ * pmbus telemetry decodes the implemented sensors and prints
+ * "(not supported)" for the commands the emulator NAKs (READ_IIN,
+ * READ_POUT). LINEAR11 is used for VIN/IOUT/TEMP, LINEAR16 (with the
+ * VOUT_MODE 2^-8 exponent) for VOUT.
+ */
+static int dm_test_pmbus_telemetry(struct unit_test_state *uts)
+{
+ ut_assertok(pmbus_select(uts));
+
+ ut_assertok(run_command("pmbus telemetry", 0));
+ ut_assert_nextline("pmbus telemetry @ i2c0:0x70");
+ ut_assert_nextline(" VIN : raw=0x0abc 1400.000V");
+ ut_assert_nextline(" VOUT : raw=0x0200 2.000V");
+ ut_assert_nextline(" IIN : (not supported)");
+ ut_assert_nextline(" IOUT : raw=0x0123 291.000A");
+ ut_assert_nextline(" POUT : (not supported)");
+ ut_assert_nextline(" TEMP : raw=0x0019 25.000C");
+ ut_assert_console_end();
+
+ return 0;
+}
+
+DM_TEST(dm_test_pmbus_telemetry, UTF_SCAN_FDT | UTF_CONSOLE);
+
+/* pmbus status decodes every STATUS_* register; the emulator is clean */
+static int dm_test_pmbus_status(struct unit_test_state *uts)
+{
+ ut_assertok(pmbus_select(uts));
+
+ ut_assertok(run_command("pmbus status", 0));
+ ut_assert_nextline("pmbus status @ i2c0:0x70");
+ ut_assert_nextline(" STATUS_WORD (79h) = 0x0000 [clean]");
+ ut_assert_nextline(" STATUS_VOUT (7Ah) = 0x00 [clean]");
+ ut_assert_nextline(" STATUS_IOUT (7Bh) = 0x00 [clean]");
+ ut_assert_nextline(" STATUS_INPUT (7Ch) = 0x00 [clean]");
+ ut_assert_nextline(" STATUS_TEMP (7Dh) = 0x00 [clean]");
+ ut_assert_nextline(" STATUS_CML (7Eh) = 0x00 [clean]");
+ ut_assert_console_end();
+
+ return 0;
+}
+
+DM_TEST(dm_test_pmbus_status, UTF_SCAN_FDT | UTF_CONSOLE);
+
+/* pmbus read/pmbus write raw register access (byte, word, string) */
+static int dm_test_pmbus_read_write(struct unit_test_state *uts)
+{
+ ut_assertok(pmbus_select(uts));
+
+ /* Symbolic and numeric register names both resolve */
+ ut_assertok(run_command("pmbus read VOUT_MODE", 0));
+ ut_assert_nextline(" 20h VOUT_MODE b=0x18");
+ ut_assertok(run_command("pmbus read 8b w", 0));
+ ut_assert_nextline(" 8bh READ_VOUT w=0x0200");
+ ut_assertok(run_command("pmbus read MFR_ID s", 0));
+ ut_assert_nextline(" 99h MFR_ID s=\"SANDBOX\"");
+
+ /* A word write is observable on the next read-back */
+ ut_assertok(run_command("pmbus write VOUT_COMMAND 123 w", 0));
+ ut_assert_nextline("pmbus: wrote 0x123 to 21h (VOUT_COMMAND)");
+ ut_assertok(run_command("pmbus read VOUT_COMMAND w", 0));
+ ut_assert_nextline(" 21h VOUT_COMMAND w=0x0123");
+ ut_assert_console_end();
+
+ return 0;
+}
+
+DM_TEST(dm_test_pmbus_read_write, UTF_SCAN_FDT | UTF_CONSOLE);
+
+/* pmbus vout reads back VOUT via the active driver_info decoder */
+static int dm_test_pmbus_vout(struct unit_test_state *uts)
+{
+ ut_assertok(pmbus_select(uts));
+
+ ut_assertok(run_command("pmbus vout", 0));
+ ut_assert_nextline("pmbus VOUT @ i2c0:0x70 raw=0x0200 2.000V");
+ ut_assert_console_end();
+
+ return 0;
+}
+
+DM_TEST(dm_test_pmbus_vout, UTF_SCAN_FDT | UTF_CONSOLE);
+
+/* pmbus dump walks every standard register; spot-check one line */
+static int dm_test_pmbus_dump(struct unit_test_state *uts)
+{
+ ut_assertok(pmbus_select(uts));
+
+ ut_assertok(run_command("pmbus dump", 0));
+ ut_assert_nextline("pmbus dump @ i2c0:0x70 (registers known to <pmbus.h>)");
+ ut_assert_skip_to_line(" 20h VOUT_MODE b=0x18");
+
+ return 0;
+}
+
+DM_TEST(dm_test_pmbus_dump, UTF_SCAN_FDT | UTF_CONSOLE);
+
+/* pmbus clear [faults] issues CLEAR_FAULTS (03h) */
+static int dm_test_pmbus_clear(struct unit_test_state *uts)
+{
+ ut_assertok(pmbus_select(uts));
+
+ ut_assertok(run_command("pmbus clear faults", 0));
+ ut_assert_nextline("pmbus: CLEAR_FAULTS (03h) issued (RAM sticky STATUS_* cleared)");
+ ut_assert_console_end();
+
+ return 0;
+}
+
+DM_TEST(dm_test_pmbus_clear, UTF_SCAN_FDT | UTF_CONSOLE);
+
+/* pmbus scan finds the emulated chip by its MFR_ID block read */
+static int dm_test_pmbus_scan(struct unit_test_state *uts)
+{
+ ut_assertok(run_command("pmbus scan 0", 0));
+ ut_assert_skip_to_line(" i2c0:0x70 MFR_ID=\"SANDBOX\"");
+
+ return 0;
+}
+
+DM_TEST(dm_test_pmbus_scan, UTF_SCAN_FDT | UTF_CONSOLE);
+
+/* pmbus help lists vendor extensions; none are registered here */
+static int dm_test_pmbus_help(struct unit_test_state *uts)
+{
+ ut_assertok(run_command("pmbus help", 0));
+ ut_assert_nextline("pmbus: no vendor extensions registered.");
+ ut_assert_skip_to_line(" board hook (boot snapshot) and re run 'pmbus help'.");
+
+ return 0;
+}
+
+DM_TEST(dm_test_pmbus_help, UTF_SCAN_FDT | UTF_CONSOLE);
diff --git a/test/dm/regulator.c b/test/dm/regulator.c
index 449748ad52f..51007d4079d 100644
--- a/test/dm/regulator.c
+++ b/test/dm/regulator.c
@@ -28,6 +28,7 @@ enum {
BUCK3,
LDO1,
LDO2,
+ LDO3,
OUTPUT_COUNT,
};
@@ -44,6 +45,7 @@ static const char *regulator_names[OUTPUT_COUNT][OUTPUT_NAME_COUNT] = {
{ SANDBOX_BUCK3_DEVNAME, SANDBOX_BUCK3_PLATNAME },
{ SANDBOX_LDO1_DEVNAME, SANDBOX_LDO1_PLATNAME},
{ SANDBOX_LDO2_DEVNAME, SANDBOX_LDO2_PLATNAME},
+ { SANDBOX_LDO3_DEVNAME, SANDBOX_LDO3_PLATNAME},
};
/* Test regulator get method */
@@ -118,6 +120,42 @@ static int dm_test_power_regulator_set_get_voltage(struct unit_test_state *uts)
}
DM_TEST(dm_test_power_regulator_set_get_voltage, UTF_SCAN_FDT);
+/* Test regulator set Voltage clamp method */
+static int dm_test_power_regulator_set_value_clamp(struct unit_test_state *uts)
+{
+ struct udevice *dev;
+ const char *platname;
+
+ /* LDO3 have 'min' 1.8V and 'max' 3.3V */
+ platname = regulator_names[LDO3][PLATNAME];
+ ut_assertok(regulator_get_by_platname(platname, &dev));
+
+ /* 'target' in 'min'/'max' range - should not clamp voltage */
+ ut_assertok(regulator_set_value_clamp(dev, 1700000, 1800000, 1950000));
+ ut_asserteq(1800000, regulator_get_value(dev));
+ ut_assertok(regulator_set_value_clamp(dev, 2700000, 3300000, 3600000));
+ ut_asserteq(3300000, regulator_get_value(dev));
+
+ /* 'target' out of 'min'/'max' range - should clamp voltage */
+ ut_assertok(regulator_set_value_clamp(dev, 1700000, 1700000, 1950000));
+ ut_asserteq(1800000, regulator_get_value(dev));
+ ut_assertok(regulator_set_value_clamp(dev, 2700000, 3400000, 3600000));
+ ut_asserteq(3300000, regulator_get_value(dev));
+
+ /* 'min'/'max' out of range - should return -EINVAL */
+ ut_asserteq(-EINVAL,
+ regulator_set_value_clamp(dev, 1200000, 1500000, 1700000));
+ ut_asserteq(-EINVAL,
+ regulator_set_value_clamp(dev, 3500000, 4000000, 5000000));
+
+ /* 'min' higher than 'max' - should return -EINVAL */
+ ut_asserteq(-EINVAL,
+ regulator_set_value_clamp(dev, 3100000, 3000000, 2900000));
+
+ return 0;
+}
+DM_TEST(dm_test_power_regulator_set_value_clamp, UTF_SCAN_FDT);
+
/* Test regulator set and get Current method */
static int dm_test_power_regulator_set_get_current(struct unit_test_state *uts)
{
diff --git a/test/dm/reset.c b/test/dm/reset.c
index dceb6a1dad3..91fa7ff723b 100644
--- a/test/dm/reset.c
+++ b/test/dm/reset.c
@@ -19,6 +19,9 @@
/* This is the other reset phandle specifier handled by bulk */
#define OTHER_RESET_ID 2
+/* Line on reset-ctl-fallback (sandbox,reset-ctl-fallback-only); see test.dts */
+#define FALLBACK_RESET_ID 5
+
/* Base test of the reset uclass */
static int dm_test_reset_base(struct unit_test_state *uts)
{
@@ -120,6 +123,110 @@ static int dm_test_reset_devm(struct unit_test_state *uts)
}
DM_TEST(dm_test_reset_devm, UTF_SCAN_FDT);
+static int dm_test_reset_reset(struct unit_test_state *uts)
+{
+ struct udevice *dev_reset;
+ struct udevice *dev_test;
+
+ ut_assertok(uclass_get_device_by_name(UCLASS_RESET, "reset-ctl",
+ &dev_reset));
+ ut_asserteq(0, sandbox_reset_query(dev_reset, TEST_RESET_ID));
+
+ ut_assertok(uclass_get_device_by_name(UCLASS_MISC, "reset-ctl-test",
+ &dev_test));
+ ut_assertok(sandbox_reset_test_get(dev_test));
+
+ /* Verify reset_count starts at 0 */
+ ut_asserteq(0, sandbox_reset_get_count(dev_reset, TEST_RESET_ID));
+
+ ut_assertok(sandbox_reset_test_assert(dev_test));
+ ut_asserteq(1, sandbox_reset_query(dev_reset, TEST_RESET_ID));
+
+ ut_assertok(sandbox_reset_test_reset(dev_test));
+
+ /* Verify reset was pulsed (count incremented) */
+ ut_asserteq(1, sandbox_reset_get_count(dev_reset, TEST_RESET_ID));
+ ut_asserteq(0, sandbox_reset_query(dev_reset, TEST_RESET_ID));
+
+ ut_assertok(sandbox_reset_test_free(dev_test));
+
+ return 0;
+}
+DM_TEST(dm_test_reset_reset, UTF_SCAN_FDT);
+
+/*
+ * reset_reset() fallback path: controller has no rst_reset op, so the
+ * core does assert -> udelay -> deassert. rst_reset-only accounting
+ * (reset_count) stays zero. Leave the line asserted before reset_reset()
+ * so we verify the fallback actually pulses it back to deasserted.
+ */
+static int dm_test_reset_reset_fallback_path(struct unit_test_state *uts)
+{
+ struct udevice *dev_reset_fb;
+ struct udevice *dev_test;
+ struct reset_ctl ctl;
+
+ ut_assertok(uclass_get_device_by_name(UCLASS_RESET, "reset-ctl-fallback",
+ &dev_reset_fb));
+ ut_asserteq(0, sandbox_reset_query(dev_reset_fb, FALLBACK_RESET_ID));
+ ut_asserteq(0, sandbox_reset_get_count(dev_reset_fb, FALLBACK_RESET_ID));
+
+ ut_assertok(uclass_get_device_by_name(UCLASS_MISC, "reset-ctl-test",
+ &dev_test));
+ ut_assertok(reset_get_by_name(dev_test, "fallback", &ctl));
+ ut_asserteq_ptr(ctl.dev, dev_reset_fb);
+ ut_asserteq(FALLBACK_RESET_ID, ctl.id);
+
+ ut_assertok(reset_assert(&ctl));
+ ut_asserteq(1, sandbox_reset_query(dev_reset_fb, FALLBACK_RESET_ID));
+ ut_asserteq(0, sandbox_reset_get_count(dev_reset_fb, FALLBACK_RESET_ID));
+
+ ut_assertok(reset_reset(&ctl, 1));
+ ut_asserteq(0, sandbox_reset_get_count(dev_reset_fb, FALLBACK_RESET_ID));
+ ut_asserteq(0, sandbox_reset_query(dev_reset_fb, FALLBACK_RESET_ID));
+
+ ut_assertok(reset_free(&ctl));
+
+ return 0;
+}
+DM_TEST(dm_test_reset_reset_fallback_path, UTF_SCAN_FDT);
+
+static int dm_test_reset_reset_bulk(struct unit_test_state *uts)
+{
+ struct udevice *dev_reset;
+ struct udevice *dev_test;
+
+ ut_assertok(uclass_get_device_by_name(UCLASS_RESET, "reset-ctl",
+ &dev_reset));
+ ut_asserteq(0, sandbox_reset_query(dev_reset, TEST_RESET_ID));
+ ut_asserteq(0, sandbox_reset_query(dev_reset, OTHER_RESET_ID));
+
+ ut_assertok(uclass_get_device_by_name(UCLASS_MISC, "reset-ctl-test",
+ &dev_test));
+ ut_assertok(sandbox_reset_test_get_bulk(dev_test));
+
+ /* Verify reset_count starts at 0 */
+ ut_asserteq(0, sandbox_reset_get_count(dev_reset, TEST_RESET_ID));
+ ut_asserteq(0, sandbox_reset_get_count(dev_reset, OTHER_RESET_ID));
+
+ ut_assertok(sandbox_reset_test_assert_bulk(dev_test));
+ ut_asserteq(1, sandbox_reset_query(dev_reset, TEST_RESET_ID));
+ ut_asserteq(1, sandbox_reset_query(dev_reset, OTHER_RESET_ID));
+
+ ut_assertok(sandbox_reset_test_reset_bulk(dev_test));
+
+ /* Verify resets were pulsed (counts incremented) */
+ ut_asserteq(1, sandbox_reset_get_count(dev_reset, TEST_RESET_ID));
+ ut_asserteq(1, sandbox_reset_get_count(dev_reset, OTHER_RESET_ID));
+ ut_asserteq(0, sandbox_reset_query(dev_reset, TEST_RESET_ID));
+ ut_asserteq(0, sandbox_reset_query(dev_reset, OTHER_RESET_ID));
+
+ ut_assertok(sandbox_reset_test_release_bulk(dev_test));
+
+ return 0;
+}
+DM_TEST(dm_test_reset_reset_bulk, UTF_SCAN_FDT);
+
static int dm_test_reset_bulk(struct unit_test_state *uts)
{
struct udevice *dev_reset;
diff --git a/test/dm/sysinfo.c b/test/dm/sysinfo.c
index 14ebe6b42e7..611f2e98d14 100644
--- a/test/dm/sysinfo.c
+++ b/test/dm/sysinfo.c
@@ -66,3 +66,19 @@ static int dm_test_sysinfo(struct unit_test_state *uts)
return 0;
}
DM_TEST(dm_test_sysinfo, UTF_SCAN_PDATA | UTF_SCAN_FDT);
+
+static int dm_test_sysinfo_get_and_detect(struct unit_test_state *uts)
+{
+ struct udevice *sysinfo;
+ bool called_detect = false;
+
+ ut_assertok(sysinfo_get_and_detect(&sysinfo));
+ ut_assert(sysinfo);
+
+ ut_assertok(sysinfo_get_bool(sysinfo, BOOL_CALLED_DETECT,
+ &called_detect));
+ ut_assert(called_detect);
+
+ return 0;
+}
+DM_TEST(dm_test_sysinfo_get_and_detect, UTF_SCAN_PDATA | UTF_SCAN_FDT);