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e8f339e0 PM |
1 | /* |
2 | * Tests for the driver model regulator API | |
3 | * | |
4 | * Copyright (c) 2015 Samsung Electronics | |
5 | * Przemyslaw Marczak <p.marczak@samsung.com> | |
6 | * | |
7 | * SPDX-License-Identifier: GPL-2.0+ | |
8 | */ | |
9 | ||
10 | #include <common.h> | |
11 | #include <errno.h> | |
12 | #include <dm.h> | |
13 | #include <fdtdec.h> | |
14 | #include <malloc.h> | |
15 | #include <dm/device-internal.h> | |
16 | #include <dm/root.h> | |
e8f339e0 PM |
17 | #include <dm/util.h> |
18 | #include <dm/test.h> | |
19 | #include <dm/uclass-internal.h> | |
20 | #include <power/pmic.h> | |
21 | #include <power/regulator.h> | |
22 | #include <power/sandbox_pmic.h> | |
e721b882 | 23 | #include <test/ut.h> |
e8f339e0 PM |
24 | |
25 | DECLARE_GLOBAL_DATA_PTR; | |
26 | ||
27 | enum { | |
28 | BUCK1, | |
29 | BUCK2, | |
bf802f5d | 30 | BUCK3, |
e8f339e0 PM |
31 | LDO1, |
32 | LDO2, | |
33 | OUTPUT_COUNT, | |
34 | }; | |
35 | ||
36 | enum { | |
37 | DEVNAME = 0, | |
38 | PLATNAME, | |
39 | OUTPUT_NAME_COUNT, | |
40 | }; | |
41 | ||
42 | static const char *regulator_names[OUTPUT_COUNT][OUTPUT_NAME_COUNT] = { | |
43 | /* devname, platname */ | |
44 | { SANDBOX_BUCK1_DEVNAME, SANDBOX_BUCK1_PLATNAME }, | |
45 | { SANDBOX_BUCK2_DEVNAME, SANDBOX_BUCK2_PLATNAME }, | |
bf802f5d | 46 | { SANDBOX_BUCK3_DEVNAME, SANDBOX_BUCK3_PLATNAME }, |
e8f339e0 PM |
47 | { SANDBOX_LDO1_DEVNAME, SANDBOX_LDO1_PLATNAME}, |
48 | { SANDBOX_LDO2_DEVNAME, SANDBOX_LDO2_PLATNAME}, | |
49 | }; | |
50 | ||
51 | /* Test regulator get method */ | |
e721b882 | 52 | static int dm_test_power_regulator_get(struct unit_test_state *uts) |
e8f339e0 PM |
53 | { |
54 | struct dm_regulator_uclass_platdata *uc_pdata; | |
55 | struct udevice *dev_by_devname; | |
56 | struct udevice *dev_by_platname; | |
57 | const char *devname; | |
58 | const char *platname; | |
59 | int i; | |
60 | ||
61 | for (i = 0; i < OUTPUT_COUNT; i++) { | |
62 | /* | |
63 | * Do the test for each regulator's devname and platname, | |
64 | * which are related to a single device. | |
65 | */ | |
66 | devname = regulator_names[i][DEVNAME]; | |
67 | platname = regulator_names[i][PLATNAME]; | |
68 | ||
69 | /* | |
70 | * Check, that regulator_get_by_devname() function, returns | |
71 | * a device with the name equal to the requested one. | |
72 | */ | |
73 | ut_assertok(regulator_get_by_devname(devname, &dev_by_devname)); | |
74 | ut_asserteq_str(devname, dev_by_devname->name); | |
75 | ||
76 | /* | |
77 | * Check, that regulator_get_by_platname() function, returns | |
78 | * a device with the name equal to the requested one. | |
79 | */ | |
80 | ut_assertok(regulator_get_by_platname(platname, &dev_by_platname)); | |
81 | uc_pdata = dev_get_uclass_platdata(dev_by_platname); | |
82 | ut_assert(uc_pdata); | |
83 | ut_asserteq_str(platname, uc_pdata->name); | |
84 | ||
85 | /* | |
86 | * Check, that the pointers returned by both get functions, | |
87 | * points to the same regulator device. | |
88 | */ | |
89 | ut_asserteq_ptr(dev_by_devname, dev_by_platname); | |
90 | } | |
91 | ||
92 | return 0; | |
93 | } | |
94 | DM_TEST(dm_test_power_regulator_get, DM_TESTF_SCAN_FDT); | |
95 | ||
96 | /* Test regulator set and get Voltage method */ | |
e721b882 | 97 | static int dm_test_power_regulator_set_get_voltage(struct unit_test_state *uts) |
e8f339e0 PM |
98 | { |
99 | struct dm_regulator_uclass_platdata *uc_pdata; | |
100 | struct udevice *dev; | |
101 | const char *platname; | |
102 | int val_set, val_get; | |
103 | ||
104 | /* Set and get Voltage of BUCK1 - set to 'min' constraint */ | |
105 | platname = regulator_names[BUCK1][PLATNAME]; | |
106 | ut_assertok(regulator_get_by_platname(platname, &dev)); | |
107 | ||
108 | uc_pdata = dev_get_uclass_platdata(dev); | |
109 | ut_assert(uc_pdata); | |
110 | ||
111 | val_set = uc_pdata->min_uV; | |
112 | ut_assertok(regulator_set_value(dev, val_set)); | |
113 | ||
114 | val_get = regulator_get_value(dev); | |
115 | ut_assert(val_get >= 0); | |
116 | ||
117 | ut_asserteq(val_set, val_get); | |
118 | ||
119 | return 0; | |
120 | } | |
121 | DM_TEST(dm_test_power_regulator_set_get_voltage, DM_TESTF_SCAN_FDT); | |
122 | ||
123 | /* Test regulator set and get Current method */ | |
e721b882 | 124 | static int dm_test_power_regulator_set_get_current(struct unit_test_state *uts) |
e8f339e0 PM |
125 | { |
126 | struct dm_regulator_uclass_platdata *uc_pdata; | |
127 | struct udevice *dev; | |
128 | const char *platname; | |
129 | int val_set, val_get; | |
130 | ||
131 | /* Set and get the Current of LDO1 - set to 'min' constraint */ | |
132 | platname = regulator_names[LDO1][PLATNAME]; | |
133 | ut_assertok(regulator_get_by_platname(platname, &dev)); | |
134 | ||
135 | uc_pdata = dev_get_uclass_platdata(dev); | |
136 | ut_assert(uc_pdata); | |
137 | ||
138 | val_set = uc_pdata->min_uA; | |
139 | ut_assertok(regulator_set_current(dev, val_set)); | |
140 | ||
141 | val_get = regulator_get_current(dev); | |
142 | ut_assert(val_get >= 0); | |
143 | ||
144 | ut_asserteq(val_set, val_get); | |
145 | ||
146 | /* Check LDO2 current limit constraints - should be -ENODATA */ | |
147 | platname = regulator_names[LDO2][PLATNAME]; | |
148 | ut_assertok(regulator_get_by_platname(platname, &dev)); | |
149 | ||
150 | uc_pdata = dev_get_uclass_platdata(dev); | |
151 | ut_assert(uc_pdata); | |
152 | ut_asserteq(-ENODATA, uc_pdata->min_uA); | |
153 | ut_asserteq(-ENODATA, uc_pdata->max_uA); | |
154 | ||
155 | /* Try set the Current of LDO2 - should return -ENOSYS */ | |
156 | ut_asserteq(-ENOSYS, regulator_set_current(dev, 0)); | |
157 | ||
158 | return 0; | |
159 | } | |
160 | DM_TEST(dm_test_power_regulator_set_get_current, DM_TESTF_SCAN_FDT); | |
161 | ||
162 | /* Test regulator set and get Enable method */ | |
e721b882 | 163 | static int dm_test_power_regulator_set_get_enable(struct unit_test_state *uts) |
e8f339e0 PM |
164 | { |
165 | const char *platname; | |
166 | struct udevice *dev; | |
167 | bool val_set = true; | |
168 | ||
169 | /* Set the Enable of LDO1 - default is disabled */ | |
170 | platname = regulator_names[LDO1][PLATNAME]; | |
171 | ut_assertok(regulator_get_by_platname(platname, &dev)); | |
172 | ut_assertok(regulator_set_enable(dev, val_set)); | |
173 | ||
174 | /* Get the Enable state of LDO1 and compare it with the requested one */ | |
175 | ut_asserteq(regulator_get_enable(dev), val_set); | |
176 | ||
177 | return 0; | |
178 | } | |
179 | DM_TEST(dm_test_power_regulator_set_get_enable, DM_TESTF_SCAN_FDT); | |
180 | ||
181 | /* Test regulator set and get mode method */ | |
e721b882 | 182 | static int dm_test_power_regulator_set_get_mode(struct unit_test_state *uts) |
e8f339e0 PM |
183 | { |
184 | const char *platname; | |
185 | struct udevice *dev; | |
186 | int val_set = LDO_OM_SLEEP; | |
187 | ||
188 | /* Set the mode id to LDO_OM_SLEEP of LDO1 - default is LDO_OM_OFF */ | |
189 | platname = regulator_names[LDO1][PLATNAME]; | |
190 | ut_assertok(regulator_get_by_platname(platname, &dev)); | |
191 | ut_assertok(regulator_set_mode(dev, val_set)); | |
192 | ||
193 | /* Get the mode id of LDO1 and compare it with the requested one */ | |
194 | ut_asserteq(regulator_get_mode(dev), val_set); | |
195 | ||
196 | return 0; | |
197 | } | |
198 | DM_TEST(dm_test_power_regulator_set_get_mode, DM_TESTF_SCAN_FDT); | |
199 | ||
200 | /* Test regulator autoset method */ | |
e721b882 | 201 | static int dm_test_power_regulator_autoset(struct unit_test_state *uts) |
e8f339e0 PM |
202 | { |
203 | const char *platname; | |
204 | struct udevice *dev, *dev_autoset; | |
205 | ||
206 | /* | |
207 | * Test the BUCK1 with fdt properties | |
208 | * - min-microvolt = max-microvolt = 1200000 | |
209 | * - min-microamp = max-microamp = 200000 | |
210 | * - always-on = set | |
211 | * - boot-on = not set | |
212 | * Expected output state: uV=1200000; uA=200000; output enabled | |
213 | */ | |
214 | platname = regulator_names[BUCK1][PLATNAME]; | |
3b55d30f | 215 | ut_assertok(regulator_autoset_by_name(platname, &dev_autoset)); |
e8f339e0 PM |
216 | |
217 | /* Check, that the returned device is proper */ | |
218 | ut_assertok(regulator_get_by_platname(platname, &dev)); | |
219 | ut_asserteq_ptr(dev, dev_autoset); | |
220 | ||
221 | /* Check the setup after autoset */ | |
222 | ut_asserteq(regulator_get_value(dev), | |
223 | SANDBOX_BUCK1_AUTOSET_EXPECTED_UV); | |
224 | ut_asserteq(regulator_get_current(dev), | |
225 | SANDBOX_BUCK1_AUTOSET_EXPECTED_UA); | |
226 | ut_asserteq(regulator_get_enable(dev), | |
227 | SANDBOX_BUCK1_AUTOSET_EXPECTED_ENABLE); | |
228 | ||
229 | return 0; | |
230 | } | |
231 | DM_TEST(dm_test_power_regulator_autoset, DM_TESTF_SCAN_FDT); | |
232 | ||
233 | /* | |
234 | * Struct setting: to keep the expected output settings. | |
235 | * @voltage: Voltage value [uV] | |
236 | * @current: Current value [uA] | |
237 | * @enable: output enable state: true/false | |
238 | */ | |
239 | struct setting { | |
240 | int voltage; | |
241 | int current; | |
242 | bool enable; | |
243 | }; | |
244 | ||
245 | /* | |
246 | * platname_list: an array of regulator platform names. | |
247 | * For testing regulator_list_autoset() for outputs: | |
248 | * - LDO1 | |
249 | * - LDO2 | |
250 | */ | |
251 | static const char *platname_list[] = { | |
252 | SANDBOX_LDO1_PLATNAME, | |
253 | SANDBOX_LDO2_PLATNAME, | |
254 | NULL, | |
255 | }; | |
256 | ||
257 | /* | |
258 | * expected_setting_list: an array of regulator output setting, expected after | |
259 | * call of the regulator_list_autoset() for the "platname_list" array. | |
260 | * For testing results of regulator_list_autoset() for outputs: | |
261 | * - LDO1 | |
262 | * - LDO2 | |
263 | * The settings are defined in: include/power/sandbox_pmic.h | |
264 | */ | |
265 | static const struct setting expected_setting_list[] = { | |
266 | [0] = { /* LDO1 */ | |
267 | .voltage = SANDBOX_LDO1_AUTOSET_EXPECTED_UV, | |
268 | .current = SANDBOX_LDO1_AUTOSET_EXPECTED_UA, | |
269 | .enable = SANDBOX_LDO1_AUTOSET_EXPECTED_ENABLE, | |
270 | }, | |
271 | [1] = { /* LDO2 */ | |
272 | .voltage = SANDBOX_LDO2_AUTOSET_EXPECTED_UV, | |
273 | .current = SANDBOX_LDO2_AUTOSET_EXPECTED_UA, | |
274 | .enable = SANDBOX_LDO2_AUTOSET_EXPECTED_ENABLE, | |
275 | }, | |
276 | }; | |
277 | ||
278 | static int list_count = ARRAY_SIZE(expected_setting_list); | |
279 | ||
280 | /* Test regulator list autoset method */ | |
e721b882 | 281 | static int dm_test_power_regulator_autoset_list(struct unit_test_state *uts) |
e8f339e0 PM |
282 | { |
283 | struct udevice *dev_list[2], *dev; | |
284 | int i; | |
285 | ||
286 | /* | |
287 | * Test the settings of the regulator list: | |
288 | * LDO1 with fdt properties: | |
289 | * - min-microvolt = max-microvolt = 1800000 | |
290 | * - min-microamp = max-microamp = 100000 | |
291 | * - always-on = not set | |
292 | * - boot-on = set | |
293 | * Expected output state: uV=1800000; uA=100000; output enabled | |
294 | * | |
295 | * LDO2 with fdt properties: | |
296 | * - min-microvolt = max-microvolt = 3300000 | |
297 | * - always-on = not set | |
298 | * - boot-on = not set | |
299 | * Expected output state: uV=300000(default); output disabled(default) | |
300 | * The expected settings are defined in: include/power/sandbox_pmic.h. | |
301 | */ | |
302 | ut_assertok(regulator_list_autoset(platname_list, dev_list, false)); | |
303 | ||
304 | for (i = 0; i < list_count; i++) { | |
305 | /* Check, that the returned device is non-NULL */ | |
306 | ut_assert(dev_list[i]); | |
307 | ||
308 | /* Check, that the returned device is proper */ | |
309 | ut_assertok(regulator_get_by_platname(platname_list[i], &dev)); | |
310 | ut_asserteq_ptr(dev_list[i], dev); | |
311 | ||
312 | /* Check, that regulator output Voltage value is as expected */ | |
313 | ut_asserteq(regulator_get_value(dev_list[i]), | |
314 | expected_setting_list[i].voltage); | |
315 | ||
316 | /* Check, that regulator output Current value is as expected */ | |
317 | ut_asserteq(regulator_get_current(dev_list[i]), | |
318 | expected_setting_list[i].current); | |
319 | ||
320 | /* Check, that regulator output Enable state is as expected */ | |
321 | ut_asserteq(regulator_get_enable(dev_list[i]), | |
322 | expected_setting_list[i].enable); | |
323 | } | |
324 | ||
325 | return 0; | |
326 | } | |
327 | DM_TEST(dm_test_power_regulator_autoset_list, DM_TESTF_SCAN_FDT); |