Merge tag 'u-boot-amlogic-20220120' of https://source.denx.de/u-boot/custodians/u...
[platform/kernel/u-boot.git] / test / dm / of_platdata.c
1 // SPDX-License-Identifier: GPL-2.0+
2
3 #include <common.h>
4 #include <clk.h>
5 #include <dm.h>
6 #include <dt-structs.h>
7 #include <irq.h>
8 #include <dm/test.h>
9 #include <test/test.h>
10 #include <test/ut.h>
11 #include <asm-generic/gpio.h>
12 #include <asm/global_data.h>
13
14 /* Test that we can find a device using of-platdata */
15 static int dm_test_of_plat_base(struct unit_test_state *uts)
16 {
17         struct udevice *dev;
18
19         ut_assertok(uclass_first_device_err(UCLASS_SERIAL, &dev));
20         ut_asserteq_str("sandbox_serial", dev->name);
21
22         return 0;
23 }
24 DM_TEST(dm_test_of_plat_base, UT_TESTF_SCAN_PDATA);
25
26 /* Test that we can read properties from a device */
27 static int dm_test_of_plat_props(struct unit_test_state *uts)
28 {
29         struct dtd_sandbox_spl_test *plat;
30         struct udevice *dev;
31         int i;
32
33         ut_assertok(uclass_get_device_by_name(UCLASS_MISC, "sandbox_spl_test",
34                                               &dev));
35
36         plat = dev_get_plat(dev);
37         ut_assert(plat->boolval);
38         ut_asserteq(1, plat->intval);
39         ut_asserteq(3, ARRAY_SIZE(plat->intarray));
40         ut_asserteq(2, plat->intarray[0]);
41         ut_asserteq(3, plat->intarray[1]);
42         ut_asserteq(4, plat->intarray[2]);
43         ut_asserteq(5, plat->byteval);
44         ut_asserteq(1, ARRAY_SIZE(plat->maybe_empty_int));
45         ut_asserteq(0, plat->maybe_empty_int[0]);
46         ut_asserteq(3, ARRAY_SIZE(plat->bytearray));
47         ut_asserteq(6, plat->bytearray[0]);
48         ut_asserteq(0, plat->bytearray[1]);
49         ut_asserteq(0, plat->bytearray[2]);
50         ut_asserteq(9, ARRAY_SIZE(plat->longbytearray));
51         for (i = 0; i < ARRAY_SIZE(plat->longbytearray); i++)
52                 ut_asserteq(9 + i, plat->longbytearray[i]);
53         ut_asserteq_str("message", plat->stringval);
54         ut_asserteq(3, ARRAY_SIZE(plat->stringarray));
55         ut_asserteq_str("multi-word", plat->stringarray[0]);
56         ut_asserteq_str("message", plat->stringarray[1]);
57         ut_asserteq_str("", plat->stringarray[2]);
58
59         ut_assertok(uclass_next_device_err(&dev));
60         plat = dev_get_plat(dev);
61         ut_assert(!plat->boolval);
62         ut_asserteq(3, plat->intval);
63         ut_asserteq(5, plat->intarray[0]);
64         ut_asserteq(0, plat->intarray[1]);
65         ut_asserteq(0, plat->intarray[2]);
66         ut_asserteq(8, plat->byteval);
67         ut_asserteq(3, ARRAY_SIZE(plat->bytearray));
68         ut_asserteq(1, plat->bytearray[0]);
69         ut_asserteq(0x23, plat->bytearray[1]);
70         ut_asserteq(0x34, plat->bytearray[2]);
71         for (i = 0; i < ARRAY_SIZE(plat->longbytearray); i++)
72                 ut_asserteq(i < 4 ? 9 + i : 0, plat->longbytearray[i]);
73         ut_asserteq_str("message2", plat->stringval);
74         ut_asserteq_str("another", plat->stringarray[0]);
75         ut_asserteq_str("multi-word", plat->stringarray[1]);
76         ut_asserteq_str("message", plat->stringarray[2]);
77
78         ut_assertok(uclass_next_device_err(&dev));
79         plat = dev_get_plat(dev);
80         ut_assert(!plat->boolval);
81         ut_asserteq_str("one", plat->stringarray[0]);
82         ut_asserteq_str("", plat->stringarray[1]);
83         ut_asserteq_str("", plat->stringarray[2]);
84         ut_asserteq(1, plat->maybe_empty_int[0]);
85
86         ut_assertok(uclass_next_device_err(&dev));
87         plat = dev_get_plat(dev);
88         ut_assert(!plat->boolval);
89         ut_asserteq_str("spl", plat->stringarray[0]);
90
91         ut_asserteq(-ENODEV, uclass_next_device_err(&dev));
92
93         return 0;
94 }
95 DM_TEST(dm_test_of_plat_props, UT_TESTF_SCAN_PDATA);
96
97 /*
98  * find_driver_info - recursively find the driver_info for a device
99  *
100  * This sets found[idx] to true when it finds the driver_info record for a
101  * device, where idx is the index in the driver_info linker list.
102  *
103  * @uts: Test state
104  * @parent: Parent to search
105  * @found: bool array to update
106  * Return: 0 if OK, non-zero on error
107  */
108 static int find_driver_info(struct unit_test_state *uts, struct udevice *parent,
109                             bool found[])
110 {
111         struct udevice *dev;
112
113         /* If not the root device, find the entry that caused it to be bound */
114         if (parent->parent) {
115                 const int n_ents =
116                         ll_entry_count(struct driver_info, driver_info);
117                 int idx = -1;
118                 int i;
119
120                 for (i = 0; i < n_ents; i++) {
121                         const struct driver_rt *drt = gd_dm_driver_rt() + i;
122
123                         if (drt->dev == parent) {
124                                 idx = i;
125                                 found[idx] = true;
126                                 break;
127                         }
128                 }
129
130                 ut_assert(idx != -1);
131         }
132
133         device_foreach_child(dev, parent) {
134                 int ret;
135
136                 ret = find_driver_info(uts, dev, found);
137                 if (ret < 0)
138                         return ret;
139         }
140
141         return 0;
142 }
143
144 /* Check that every device is recorded in its driver_info struct */
145 static int dm_test_of_plat_dev(struct unit_test_state *uts)
146 {
147         const int n_ents = ll_entry_count(struct driver_info, driver_info);
148         bool found[n_ents];
149         uint i;
150
151         /* Skip this test if there is no platform data */
152         if (!CONFIG_IS_ENABLED(OF_PLATDATA_DRIVER_RT))
153                 return 0;
154
155         /* Record the indexes that are found */
156         memset(found, '\0', sizeof(found));
157         ut_assertok(find_driver_info(uts, gd->dm_root, found));
158
159         /* Make sure that the driver entries without devices have no ->dev */
160         for (i = 0; i < n_ents; i++) {
161                 const struct driver_rt *drt = gd_dm_driver_rt() + i;
162                 struct udevice *dev;
163
164                 if (found[i]) {
165                         /* Make sure we can find it */
166                         ut_assertnonnull(drt->dev);
167                         ut_assertok(device_get_by_ofplat_idx(i, &dev));
168                         ut_asserteq_ptr(dev, drt->dev);
169                 } else {
170                         ut_assertnull(drt->dev);
171                         ut_asserteq(-ENOENT, device_get_by_ofplat_idx(i, &dev));
172                 }
173         }
174
175         return 0;
176 }
177 DM_TEST(dm_test_of_plat_dev, UT_TESTF_SCAN_PDATA);
178
179 /* Test handling of phandles that point to other devices */
180 static int dm_test_of_plat_phandle(struct unit_test_state *uts)
181 {
182         struct dtd_sandbox_clk_test *plat;
183         struct udevice *dev, *clk;
184
185         ut_assertok(uclass_first_device_err(UCLASS_MISC, &dev));
186         ut_asserteq_str("sandbox_clk_test", dev->name);
187         plat = dev_get_plat(dev);
188
189         ut_assertok(device_get_by_ofplat_idx(plat->clocks[0].idx, &clk));
190         ut_asserteq_str("sandbox_fixed_clock", clk->name);
191
192         ut_assertok(device_get_by_ofplat_idx(plat->clocks[1].idx, &clk));
193         ut_asserteq_str("sandbox_clk", clk->name);
194         ut_asserteq(1, plat->clocks[1].arg[0]);
195
196         ut_assertok(device_get_by_ofplat_idx(plat->clocks[2].idx, &clk));
197         ut_asserteq_str("sandbox_clk", clk->name);
198         ut_asserteq(0, plat->clocks[2].arg[0]);
199
200         ut_assertok(device_get_by_ofplat_idx(plat->clocks[3].idx, &clk));
201         ut_asserteq_str("sandbox_clk", clk->name);
202         ut_asserteq(3, plat->clocks[3].arg[0]);
203
204         ut_assertok(device_get_by_ofplat_idx(plat->clocks[4].idx, &clk));
205         ut_asserteq_str("sandbox_clk", clk->name);
206         ut_asserteq(2, plat->clocks[4].arg[0]);
207
208         return 0;
209 }
210 DM_TEST(dm_test_of_plat_phandle, UT_TESTF_SCAN_PDATA);
211
212 #if CONFIG_IS_ENABLED(OF_PLATDATA_PARENT)
213 /* Test that device parents are correctly set up */
214 static int dm_test_of_plat_parent(struct unit_test_state *uts)
215 {
216         struct udevice *rtc, *i2c;
217
218         ut_assertok(uclass_first_device_err(UCLASS_RTC, &rtc));
219         ut_assertok(uclass_first_device_err(UCLASS_I2C, &i2c));
220         ut_asserteq_ptr(i2c, dev_get_parent(rtc));
221
222         return 0;
223 }
224 DM_TEST(dm_test_of_plat_parent, UT_TESTF_SCAN_PDATA);
225 #endif
226
227 /* Test clocks with of-platdata */
228 static int dm_test_of_plat_clk(struct unit_test_state *uts)
229 {
230         struct dtd_sandbox_clk_test *plat;
231         struct udevice *dev;
232         struct clk clk;
233
234         ut_assertok(uclass_first_device_err(UCLASS_MISC, &dev));
235         ut_asserteq_str("sandbox_clk_test", dev->name);
236         plat = dev_get_plat(dev);
237
238         ut_assertok(clk_get_by_phandle(dev, &plat->clocks[0], &clk));
239         ut_asserteq_str("sandbox_fixed_clock", clk.dev->name);
240
241         return 0;
242 }
243 DM_TEST(dm_test_of_plat_clk, UT_TESTF_SCAN_PDATA);
244
245 /* Test irqs with of-platdata */
246 static int dm_test_of_plat_irq(struct unit_test_state *uts)
247 {
248         struct dtd_sandbox_irq_test *plat;
249         struct udevice *dev;
250         struct irq irq;
251
252         ut_assertok(uclass_get_device_by_name(UCLASS_MISC, "sandbox_irq_test",
253                                               &dev));
254         plat = dev_get_plat(dev);
255
256         ut_assertok(irq_get_by_phandle(dev, &plat->interrupts_extended[0],
257                                        &irq));
258         ut_asserteq_str("sandbox_irq", irq.dev->name);
259
260         return 0;
261 }
262 DM_TEST(dm_test_of_plat_irq, UT_TESTF_SCAN_PDATA);
263
264 /* Test GPIOs with of-platdata */
265 static int dm_test_of_plat_gpio(struct unit_test_state *uts)
266 {
267         struct dtd_sandbox_gpio_test *plat;
268         struct udevice *dev;
269         struct gpio_desc desc;
270
271         ut_assertok(uclass_get_device_by_name(UCLASS_MISC, "sandbox_gpio_test",
272                                               &dev));
273         plat = dev_get_plat(dev);
274
275         ut_assertok(gpio_request_by_phandle(dev, &plat->test_gpios[0], &desc,
276                                             GPIOD_IS_OUT));
277         ut_asserteq_str("sandbox_gpio", desc.dev->name);
278
279         return 0;
280 }
281 DM_TEST(dm_test_of_plat_gpio, UT_TESTF_SCAN_PDATA);