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u-boot/test/dm/regulator.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style 
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

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// SPDX-License-Identifier: GPL-2.0+
/*
* Tests for the driver model regulator API
*
* Copyright (c) 2015 Samsung Electronics
* Przemyslaw Marczak <p.marczak@samsung.com>
*/
#include <common.h>
#include <errno.h>
#include <dm.h>
#include <fdtdec.h>
#include <malloc.h>
#include <dm/device-internal.h>
#include <dm/root.h>
#include <dm/util.h>
#include <dm/test.h>
#include <dm/uclass-internal.h>
#include <power/pmic.h>
#include <power/regulator.h>
#include <power/sandbox_pmic.h>
#include <test/ut.h>
enum {
BUCK1,
BUCK2,
BUCK3,
LDO1,
LDO2,
OUTPUT_COUNT,
};
enum {
DEVNAME = 0,
PLATNAME,
OUTPUT_NAME_COUNT,
};
static const char *regulator_names[OUTPUT_COUNT][OUTPUT_NAME_COUNT] = {
/* devname, platname */
{ SANDBOX_BUCK1_DEVNAME, SANDBOX_BUCK1_PLATNAME },
{ SANDBOX_BUCK2_DEVNAME, SANDBOX_BUCK2_PLATNAME },
{ SANDBOX_BUCK3_DEVNAME, SANDBOX_BUCK3_PLATNAME },
{ SANDBOX_LDO1_DEVNAME, SANDBOX_LDO1_PLATNAME},
{ SANDBOX_LDO2_DEVNAME, SANDBOX_LDO2_PLATNAME},
};
/* Test regulator get method */
static int dm_test_power_regulator_get(struct unit_test_state *uts)
{
struct dm_regulator_uclass_platdata *uc_pdata;
struct udevice *dev_by_devname;
struct udevice *dev_by_platname;
const char *devname;
const char *platname;
int i;
for (i = 0; i < OUTPUT_COUNT; i++) {
/*
* Do the test for each regulator's devname and platname,
* which are related to a single device.
*/
devname = regulator_names[i][DEVNAME];
platname = regulator_names[i][PLATNAME];
/*
* Check, that regulator_get_by_devname() function, returns
* a device with the name equal to the requested one.
*/
ut_assertok(regulator_get_by_devname(devname, &dev_by_devname));
ut_asserteq_str(devname, dev_by_devname->name);
/*
* Check, that regulator_get_by_platname() function, returns
* a device with the name equal to the requested one.
*/
ut_assertok(regulator_get_by_platname(platname, &dev_by_platname));
uc_pdata = dev_get_uclass_platdata(dev_by_platname);
ut_assert(uc_pdata);
ut_asserteq_str(platname, uc_pdata->name);
/*
* Check, that the pointers returned by both get functions,
* points to the same regulator device.
*/
ut_asserteq_ptr(dev_by_devname, dev_by_platname);
}
return 0;
}
DM_TEST(dm_test_power_regulator_get, DM_TESTF_SCAN_FDT);
/* Test regulator set and get Voltage method */
static int dm_test_power_regulator_set_get_voltage(struct unit_test_state *uts)
{
struct dm_regulator_uclass_platdata *uc_pdata;
struct udevice *dev;
const char *platname;
int val_set, val_get;
/* Set and get Voltage of BUCK1 - set to 'min' constraint */
platname = regulator_names[BUCK1][PLATNAME];
ut_assertok(regulator_get_by_platname(platname, &dev));
uc_pdata = dev_get_uclass_platdata(dev);
ut_assert(uc_pdata);
val_set = uc_pdata->min_uV;
ut_assertok(regulator_set_value(dev, val_set));
val_get = regulator_get_value(dev);
ut_assert(val_get >= 0);
ut_asserteq(val_set, val_get);
return 0;
}
DM_TEST(dm_test_power_regulator_set_get_voltage, DM_TESTF_SCAN_FDT);
/* Test regulator set and get Current method */
static int dm_test_power_regulator_set_get_current(struct unit_test_state *uts)
{
struct dm_regulator_uclass_platdata *uc_pdata;
struct udevice *dev;
const char *platname;
int val_set, val_get;
/* Set and get the Current of LDO1 - set to 'min' constraint */
platname = regulator_names[LDO1][PLATNAME];
ut_assertok(regulator_get_by_platname(platname, &dev));
uc_pdata = dev_get_uclass_platdata(dev);
ut_assert(uc_pdata);
val_set = uc_pdata->min_uA;
ut_assertok(regulator_set_current(dev, val_set));
val_get = regulator_get_current(dev);
ut_assert(val_get >= 0);
ut_asserteq(val_set, val_get);
/* Check LDO2 current limit constraints - should be -ENODATA */
platname = regulator_names[LDO2][PLATNAME];
ut_assertok(regulator_get_by_platname(platname, &dev));
uc_pdata = dev_get_uclass_platdata(dev);
ut_assert(uc_pdata);
ut_asserteq(-ENODATA, uc_pdata->min_uA);
ut_asserteq(-ENODATA, uc_pdata->max_uA);
/* Try set the Current of LDO2 - should return -ENOSYS */
ut_asserteq(-ENOSYS, regulator_set_current(dev, 0));
return 0;
}
DM_TEST(dm_test_power_regulator_set_get_current, DM_TESTF_SCAN_FDT);
/* Test regulator set and get Enable method */
static int dm_test_power_regulator_set_get_enable(struct unit_test_state *uts)
{
const char *platname;
struct udevice *dev;
bool val_set = true;
/* Set the Enable of LDO1 - default is disabled */
platname = regulator_names[LDO1][PLATNAME];
ut_assertok(regulator_get_by_platname(platname, &dev));
ut_assertok(regulator_set_enable(dev, val_set));
/* Get the Enable state of LDO1 and compare it with the requested one */
ut_asserteq(regulator_get_enable(dev), val_set);
return 0;
}
DM_TEST(dm_test_power_regulator_set_get_enable, DM_TESTF_SCAN_FDT);
/* Test regulator set and get mode method */
static int dm_test_power_regulator_set_get_mode(struct unit_test_state *uts)
{
const char *platname;
struct udevice *dev;
int val_set = LDO_OM_SLEEP;
/* Set the mode id to LDO_OM_SLEEP of LDO1 - default is LDO_OM_OFF */
platname = regulator_names[LDO1][PLATNAME];
ut_assertok(regulator_get_by_platname(platname, &dev));
ut_assertok(regulator_set_mode(dev, val_set));
/* Get the mode id of LDO1 and compare it with the requested one */
ut_asserteq(regulator_get_mode(dev), val_set);
return 0;
}
DM_TEST(dm_test_power_regulator_set_get_mode, DM_TESTF_SCAN_FDT);
/* Test regulator autoset method */
static int dm_test_power_regulator_autoset(struct unit_test_state *uts)
{
const char *platname;
struct udevice *dev, *dev_autoset;
/*
* Test the BUCK1 with fdt properties
* - min-microvolt = max-microvolt = 1200000
* - min-microamp = max-microamp = 200000
* - always-on = set
* - boot-on = not set
* Expected output state: uV=1200000; uA=200000; output enabled
*/
platname = regulator_names[BUCK1][PLATNAME];
ut_assertok(regulator_autoset_by_name(platname, &dev_autoset));
/* Check, that the returned device is proper */
ut_assertok(regulator_get_by_platname(platname, &dev));
ut_asserteq_ptr(dev, dev_autoset);
/* Check the setup after autoset */
ut_asserteq(regulator_get_value(dev),
SANDBOX_BUCK1_AUTOSET_EXPECTED_UV);
ut_asserteq(regulator_get_current(dev),
SANDBOX_BUCK1_AUTOSET_EXPECTED_UA);
ut_asserteq(regulator_get_enable(dev),
SANDBOX_BUCK1_AUTOSET_EXPECTED_ENABLE);
return 0;
}
DM_TEST(dm_test_power_regulator_autoset, DM_TESTF_SCAN_FDT);
/*
* Struct setting: to keep the expected output settings.
* @voltage: Voltage value [uV]
* @current: Current value [uA]
* @enable: output enable state: true/false
*/
struct setting {
int voltage;
int current;
bool enable;
};
/*
* platname_list: an array of regulator platform names.
* For testing regulator_list_autoset() for outputs:
* - LDO1
* - LDO2
*/
static const char *platname_list[] = {
SANDBOX_LDO1_PLATNAME,
SANDBOX_LDO2_PLATNAME,
NULL,
};
/*
* expected_setting_list: an array of regulator output setting, expected after
* call of the regulator_list_autoset() for the "platname_list" array.
* For testing results of regulator_list_autoset() for outputs:
* - LDO1
* - LDO2
* The settings are defined in: include/power/sandbox_pmic.h
*/
static const struct setting expected_setting_list[] = {
[0] = { /* LDO1 */
.voltage = SANDBOX_LDO1_AUTOSET_EXPECTED_UV,
.current = SANDBOX_LDO1_AUTOSET_EXPECTED_UA,
.enable = SANDBOX_LDO1_AUTOSET_EXPECTED_ENABLE,
},
[1] = { /* LDO2 */
.voltage = SANDBOX_LDO2_AUTOSET_EXPECTED_UV,
.current = SANDBOX_LDO2_AUTOSET_EXPECTED_UA,
.enable = SANDBOX_LDO2_AUTOSET_EXPECTED_ENABLE,
},
};
static int list_count = ARRAY_SIZE(expected_setting_list);
/* Test regulator list autoset method */
static int dm_test_power_regulator_autoset_list(struct unit_test_state *uts)
{
struct udevice *dev_list[2], *dev;
int i;
/*
* Test the settings of the regulator list:
* LDO1 with fdt properties:
* - min-microvolt = max-microvolt = 1800000
* - min-microamp = max-microamp = 100000
* - always-on = not set
* - boot-on = set
* Expected output state: uV=1800000; uA=100000; output enabled
*
* LDO2 with fdt properties:
* - min-microvolt = max-microvolt = 3300000
* - always-on = not set
* - boot-on = not set
* Expected output state: uV=300000(default); output disabled(default)
* The expected settings are defined in: include/power/sandbox_pmic.h.
*/
ut_assertok(regulator_list_autoset(platname_list, dev_list, false));
for (i = 0; i < list_count; i++) {
/* Check, that the returned device is non-NULL */
ut_assert(dev_list[i]);
/* Check, that the returned device is proper */
ut_assertok(regulator_get_by_platname(platname_list[i], &dev));
ut_asserteq_ptr(dev_list[i], dev);
/* Check, that regulator output Voltage value is as expected */
ut_asserteq(regulator_get_value(dev_list[i]),
expected_setting_list[i].voltage);
/* Check, that regulator output Current value is as expected */
ut_asserteq(regulator_get_current(dev_list[i]),
expected_setting_list[i].current);
/* Check, that regulator output Enable state is as expected */
ut_asserteq(regulator_get_enable(dev_list[i]),
expected_setting_list[i].enable);
}
return 0;
}
DM_TEST(dm_test_power_regulator_autoset_list, DM_TESTF_SCAN_FDT);
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