1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20#include <linux/i2c.h>
21#include <linux/interrupt.h>
22#include <linux/pci.h>
23#include <linux/platform_device.h>
24#include <linux/property.h>
25#include <linux/regulator/consumer.h>
26#include <linux/slab.h>
27#include <linux/usb/pd.h>
28
29#include "intel_cht_int33fe_common.h"
30
31
32
33
34
35
36
37
38
39static int cht_int33fe_check_for_max17047(struct device *dev, void *data)
40{
41 struct i2c_client **max17047 = data;
42 struct acpi_device *adev;
43
44 adev = ACPI_COMPANION(dev);
45 if (!adev)
46 return 0;
47
48
49 if (!acpi_dev_hid_uid_match(adev, "MAX17047", NULL))
50 return 0;
51
52 *max17047 = to_i2c_client(dev);
53 return 1;
54}
55
56static const char * const max17047_suppliers[] = { "bq24190-charger" };
57
58static const struct property_entry max17047_properties[] = {
59 PROPERTY_ENTRY_STRING_ARRAY("supplied-from", max17047_suppliers),
60 { }
61};
62
63static const struct software_node max17047_node = {
64 .name = "max17047",
65 .properties = max17047_properties,
66};
67
68
69
70
71
72
73static struct software_node_ref_args fusb302_mux_refs[] = {
74 { .node = NULL },
75};
76
77static const struct property_entry fusb302_properties[] = {
78 PROPERTY_ENTRY_STRING("linux,extcon-name", "cht_wcove_pwrsrc"),
79 PROPERTY_ENTRY_REF_ARRAY("usb-role-switch", fusb302_mux_refs),
80 { }
81};
82
83static const struct software_node fusb302_node = {
84 .name = "fusb302",
85 .properties = fusb302_properties,
86};
87
88#define PDO_FIXED_FLAGS \
89 (PDO_FIXED_DUAL_ROLE | PDO_FIXED_DATA_SWAP | PDO_FIXED_USB_COMM)
90
91static const u32 src_pdo[] = {
92 PDO_FIXED(5000, 1500, PDO_FIXED_FLAGS),
93};
94
95static const u32 snk_pdo[] = {
96 PDO_FIXED(5000, 400, PDO_FIXED_FLAGS),
97 PDO_VAR(5000, 12000, 3000),
98};
99
100static const struct software_node pi3usb30532_node = {
101 .name = "pi3usb30532",
102};
103
104static const struct software_node displayport_node = {
105 .name = "displayport",
106};
107
108static const struct property_entry usb_connector_properties[] = {
109 PROPERTY_ENTRY_STRING("data-role", "dual"),
110 PROPERTY_ENTRY_STRING("power-role", "dual"),
111 PROPERTY_ENTRY_STRING("try-power-role", "sink"),
112 PROPERTY_ENTRY_U32_ARRAY("source-pdos", src_pdo),
113 PROPERTY_ENTRY_U32_ARRAY("sink-pdos", snk_pdo),
114 PROPERTY_ENTRY_U32("op-sink-microwatt", 2500000),
115 PROPERTY_ENTRY_REF("orientation-switch", &pi3usb30532_node),
116 PROPERTY_ENTRY_REF("mode-switch", &pi3usb30532_node),
117 PROPERTY_ENTRY_REF("displayport", &displayport_node),
118 { }
119};
120
121static const struct software_node usb_connector_node = {
122 .name = "connector",
123 .parent = &fusb302_node,
124 .properties = usb_connector_properties,
125};
126
127static const struct software_node *node_group[] = {
128 &fusb302_node,
129 &max17047_node,
130 &pi3usb30532_node,
131 &displayport_node,
132 &usb_connector_node,
133 NULL
134};
135
136static int cht_int33fe_setup_dp(struct cht_int33fe_data *data)
137{
138 struct fwnode_handle *fwnode;
139 struct pci_dev *pdev;
140
141 fwnode = software_node_fwnode(&displayport_node);
142 if (!fwnode)
143 return -ENODEV;
144
145
146 pdev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, NULL);
147 if (!pdev || pdev->vendor != PCI_VENDOR_ID_INTEL) {
148 pci_dev_put(pdev);
149 return -ENODEV;
150 }
151
152
153 data->dp = device_get_named_child_node(&pdev->dev, "DD02");
154 pci_dev_put(pdev);
155 if (!data->dp)
156 return -ENODEV;
157
158 fwnode->secondary = ERR_PTR(-ENODEV);
159 data->dp->secondary = fwnode;
160
161 return 0;
162}
163
164static void cht_int33fe_remove_nodes(struct cht_int33fe_data *data)
165{
166 software_node_unregister_node_group(node_group);
167
168 if (fusb302_mux_refs[0].node) {
169 fwnode_handle_put(software_node_fwnode(fusb302_mux_refs[0].node));
170 fusb302_mux_refs[0].node = NULL;
171 }
172
173 if (data->dp) {
174 data->dp->secondary = NULL;
175 fwnode_handle_put(data->dp);
176 data->dp = NULL;
177 }
178}
179
180static int cht_int33fe_add_nodes(struct cht_int33fe_data *data)
181{
182 const struct software_node *mux_ref_node;
183 int ret;
184
185
186
187
188
189
190
191 mux_ref_node = software_node_find_by_name(NULL, "intel-xhci-usb-sw");
192 if (!mux_ref_node)
193 return -EPROBE_DEFER;
194
195
196
197
198
199
200 fusb302_mux_refs[0].node = mux_ref_node;
201
202 ret = software_node_register_node_group(node_group);
203 if (ret)
204 return ret;
205
206
207
208
209
210
211
212 ret = cht_int33fe_setup_dp(data);
213 if (ret)
214 goto err_remove_nodes;
215
216 return 0;
217
218err_remove_nodes:
219 cht_int33fe_remove_nodes(data);
220
221 return ret;
222}
223
224static int
225cht_int33fe_register_max17047(struct device *dev, struct cht_int33fe_data *data)
226{
227 struct i2c_client *max17047 = NULL;
228 struct i2c_board_info board_info;
229 struct fwnode_handle *fwnode;
230 int ret;
231
232 fwnode = software_node_fwnode(&max17047_node);
233 if (!fwnode)
234 return -ENODEV;
235
236 i2c_for_each_dev(&max17047, cht_int33fe_check_for_max17047);
237 if (max17047) {
238
239 set_secondary_fwnode(&max17047->dev, fwnode);
240
241 ret = device_reprobe(&max17047->dev);
242 if (ret)
243 dev_warn(dev, "Reprobing max17047 error: %d\n", ret);
244 return 0;
245 }
246
247 memset(&board_info, 0, sizeof(board_info));
248 strlcpy(board_info.type, "max17047", I2C_NAME_SIZE);
249 board_info.dev_name = "max17047";
250 board_info.fwnode = fwnode;
251 data->battery_fg = i2c_acpi_new_device(dev, 1, &board_info);
252
253 return PTR_ERR_OR_ZERO(data->battery_fg);
254}
255
256int cht_int33fe_typec_probe(struct cht_int33fe_data *data)
257{
258 struct device *dev = data->dev;
259 struct i2c_board_info board_info;
260 struct fwnode_handle *fwnode;
261 struct regulator *regulator;
262 int fusb302_irq;
263 int ret;
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279 regulator = regulator_get_optional(dev, "cht_wc_usb_typec_vbus");
280 if (IS_ERR(regulator)) {
281 ret = PTR_ERR(regulator);
282 return (ret == -ENODEV) ? -EPROBE_DEFER : ret;
283 }
284 regulator_put(regulator);
285
286
287 fusb302_irq = acpi_dev_gpio_irq_get(ACPI_COMPANION(dev), 1);
288 if (fusb302_irq < 0) {
289 if (fusb302_irq != -EPROBE_DEFER)
290 dev_err(dev, "Error getting FUSB302 irq\n");
291 return fusb302_irq;
292 }
293
294 ret = cht_int33fe_add_nodes(data);
295 if (ret)
296 return ret;
297
298
299 ret = cht_int33fe_register_max17047(dev, data);
300 if (ret)
301 goto out_remove_nodes;
302
303 fwnode = software_node_fwnode(&fusb302_node);
304 if (!fwnode) {
305 ret = -ENODEV;
306 goto out_unregister_max17047;
307 }
308
309 memset(&board_info, 0, sizeof(board_info));
310 strlcpy(board_info.type, "typec_fusb302", I2C_NAME_SIZE);
311 board_info.dev_name = "fusb302";
312 board_info.fwnode = fwnode;
313 board_info.irq = fusb302_irq;
314
315 data->fusb302 = i2c_acpi_new_device(dev, 2, &board_info);
316 if (IS_ERR(data->fusb302)) {
317 ret = PTR_ERR(data->fusb302);
318 goto out_unregister_max17047;
319 }
320
321 fwnode = software_node_fwnode(&pi3usb30532_node);
322 if (!fwnode) {
323 ret = -ENODEV;
324 goto out_unregister_fusb302;
325 }
326
327 memset(&board_info, 0, sizeof(board_info));
328 board_info.dev_name = "pi3usb30532";
329 board_info.fwnode = fwnode;
330 strlcpy(board_info.type, "pi3usb30532", I2C_NAME_SIZE);
331
332 data->pi3usb30532 = i2c_acpi_new_device(dev, 3, &board_info);
333 if (IS_ERR(data->pi3usb30532)) {
334 ret = PTR_ERR(data->pi3usb30532);
335 goto out_unregister_fusb302;
336 }
337
338 return 0;
339
340out_unregister_fusb302:
341 i2c_unregister_device(data->fusb302);
342
343out_unregister_max17047:
344 i2c_unregister_device(data->battery_fg);
345
346out_remove_nodes:
347 cht_int33fe_remove_nodes(data);
348
349 return ret;
350}
351
352int cht_int33fe_typec_remove(struct cht_int33fe_data *data)
353{
354 i2c_unregister_device(data->pi3usb30532);
355 i2c_unregister_device(data->fusb302);
356 i2c_unregister_device(data->battery_fg);
357
358 cht_int33fe_remove_nodes(data);
359
360 return 0;
361}
362