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8#include <linux/init.h>
9#include <linux/acpi.h>
10#include <linux/mfd/intel_soc_pmic.h>
11#include <linux/regmap.h>
12#include <linux/platform_device.h>
13#include "intel_pmic.h"
14
15#define WHISKEY_COVE_ALRT_HIGH_BIT_MASK 0x0F
16#define WHISKEY_COVE_ADC_HIGH_BIT(x) (((x & 0x0F) << 8))
17#define WHISKEY_COVE_ADC_CURSRC(x) (((x & 0xF0) >> 4))
18#define VR_MODE_DISABLED 0
19#define VR_MODE_AUTO BIT(0)
20#define VR_MODE_NORMAL BIT(1)
21#define VR_MODE_SWITCH BIT(2)
22#define VR_MODE_ECO (BIT(0)|BIT(1))
23#define VSWITCH2_OUTPUT BIT(5)
24#define VSWITCH1_OUTPUT BIT(4)
25#define VUSBPHY_CHARGE BIT(1)
26
27static struct pmic_table power_table[] = {
28 {
29 .address = 0x0,
30 .reg = 0x63,
31 .bit = VR_MODE_AUTO,
32 },
33 {
34 .address = 0x04,
35 .reg = 0x65,
36 .bit = VR_MODE_AUTO,
37 },
38 {
39 .address = 0x08,
40 .reg = 0x67,
41 .bit = VR_MODE_AUTO,
42 },
43 {
44 .address = 0x0c,
45 .reg = 0x6d,
46 .bit = VR_MODE_AUTO,
47 },
48 {
49 .address = 0x10,
50 .reg = 0x6f,
51 .bit = VR_MODE_NORMAL,
52 },
53 {
54 .address = 0x14,
55 .reg = 0x70,
56 .bit = VR_MODE_NORMAL,
57 },
58 {
59 .address = 0x18,
60 .reg = 0x71,
61 .bit = VR_MODE_NORMAL,
62 },
63 {
64 .address = 0x1c,
65 .reg = 0x72,
66 .bit = VR_MODE_NORMAL,
67 },
68 {
69 .address = 0x20,
70 .reg = 0x73,
71 .bit = VR_MODE_NORMAL,
72 },
73 {
74 .address = 0x24,
75 .reg = 0x74,
76 .bit = VR_MODE_NORMAL,
77 },
78 {
79 .address = 0x28,
80 .reg = 0x75,
81 .bit = VR_MODE_NORMAL,
82 },
83 {
84 .address = 0x2c,
85 .reg = 0x76,
86 .bit = VR_MODE_NORMAL,
87 },
88 {
89 .address = 0x30,
90 .reg = 0x77,
91 .bit = VR_MODE_NORMAL,
92 },
93 {
94 .address = 0x34,
95 .reg = 0x78,
96 .bit = VSWITCH2_OUTPUT,
97 },
98 {
99 .address = 0x38,
100 .reg = 0x78,
101 .bit = VSWITCH1_OUTPUT,
102 },
103 {
104 .address = 0x3c,
105 .reg = 0x78,
106 .bit = VUSBPHY_CHARGE,
107 },
108 {
109 .address = 0x40,
110 .reg = 0x7b,
111 .bit = VR_MODE_NORMAL,
112 },
113 {
114 .address = 0x44,
115 .reg = 0xA0,
116 .bit = VR_MODE_NORMAL,
117 },
118 {
119 .address = 0x48,
120 .reg = 0xA1,
121 .bit = VR_MODE_NORMAL,
122 },
123 {
124 .address = 0x4c,
125 .reg = 0xA2,
126 .bit = VR_MODE_NORMAL,
127 },
128 {
129 .address = 0x50,
130 .reg = 0xA3,
131 .bit = VR_MODE_NORMAL,
132 },
133 {
134 .address = 0x54,
135 .reg = 0xA4,
136 .bit = VR_MODE_NORMAL,
137 },
138 {
139 .address = 0x58,
140 .reg = 0xA5,
141 .bit = VR_MODE_NORMAL,
142 },
143 {
144 .address = 0x5c,
145 .reg = 0xA6,
146 .bit = VR_MODE_NORMAL,
147 },
148 {
149 .address = 0x60,
150 .reg = 0xA7,
151 .bit = VR_MODE_NORMAL,
152 },
153 {
154 .address = 0x64,
155 .reg = 0xA8,
156 .bit = VR_MODE_NORMAL,
157 },
158 {
159 .address = 0x68,
160 .reg = 0xA9,
161 .bit = VR_MODE_NORMAL,
162 },
163 {
164 .address = 0x6c,
165 .reg = 0xAA,
166 .bit = VR_MODE_NORMAL,
167 },
168 {
169 .address = 0x70,
170 .reg = 0x36,
171 .bit = BIT(2),
172 },
173 {
174 .address = 0x74,
175 .reg = 0x36,
176 .bit = BIT(0),
177 }
178};
179
180static struct pmic_table thermal_table[] = {
181 {
182 .address = 0x00,
183 .reg = 0x4F39
184 },
185 {
186 .address = 0x04,
187 .reg = 0x4F24
188 },
189 {
190 .address = 0x08,
191 .reg = 0x4F26
192 },
193 {
194 .address = 0x0c,
195 .reg = 0x4F3B
196 },
197 {
198 .address = 0x10,
199 .reg = 0x4F28
200 },
201 {
202 .address = 0x14,
203 .reg = 0x4F2A
204 },
205 {
206 .address = 0x18,
207 .reg = 0x4F3D
208 },
209 {
210 .address = 0x1c,
211 .reg = 0x4F2C
212 },
213 {
214 .address = 0x20,
215 .reg = 0x4F2E
216 },
217 {
218 .address = 0x24,
219 .reg = 0x4F3F
220 },
221 {
222 .address = 0x28,
223 .reg = 0x4F30
224 },
225 {
226 .address = 0x30,
227 .reg = 0x4F41
228 },
229 {
230 .address = 0x34,
231 .reg = 0x4F32
232 },
233 {
234 .address = 0x3c,
235 .reg = 0x4F43
236 },
237 {
238 .address = 0x40,
239 .reg = 0x4F34
240 },
241 {
242 .address = 0x48,
243 .reg = 0x4F6A,
244 .bit = 0,
245 },
246 {
247 .address = 0x4C,
248 .reg = 0x4F6A,
249 .bit = 1
250 },
251 {
252 .address = 0x50,
253 .reg = 0x4F6A,
254 .bit = 2
255 },
256 {
257 .address = 0x54,
258 .reg = 0x4F6A,
259 .bit = 4
260 },
261 {
262 .address = 0x58,
263 .reg = 0x4F6A,
264 .bit = 5
265 },
266 {
267 .address = 0x5C,
268 .reg = 0x4F6A,
269 .bit = 3
270 },
271};
272
273static int intel_bxtwc_pmic_get_power(struct regmap *regmap, int reg,
274 int bit, u64 *value)
275{
276 int data;
277
278 if (regmap_read(regmap, reg, &data))
279 return -EIO;
280
281 *value = (data & bit) ? 1 : 0;
282 return 0;
283}
284
285static int intel_bxtwc_pmic_update_power(struct regmap *regmap, int reg,
286 int bit, bool on)
287{
288 u8 val, mask = bit;
289
290 if (on)
291 val = 0xFF;
292 else
293 val = 0x0;
294
295 return regmap_update_bits(regmap, reg, mask, val);
296}
297
298static int intel_bxtwc_pmic_get_raw_temp(struct regmap *regmap, int reg)
299{
300 unsigned int val, adc_val, reg_val;
301 u8 temp_l, temp_h, cursrc;
302 unsigned long rlsb;
303 static const unsigned long rlsb_array[] = {
304 0, 260420, 130210, 65100, 32550, 16280,
305 8140, 4070, 2030, 0, 260420, 130210 };
306
307 if (regmap_read(regmap, reg, &val))
308 return -EIO;
309 temp_l = (u8) val;
310
311 if (regmap_read(regmap, (reg - 1), &val))
312 return -EIO;
313 temp_h = (u8) val;
314
315 reg_val = temp_l | WHISKEY_COVE_ADC_HIGH_BIT(temp_h);
316 cursrc = WHISKEY_COVE_ADC_CURSRC(temp_h);
317 rlsb = rlsb_array[cursrc];
318 adc_val = reg_val * rlsb / 1000;
319
320 return adc_val;
321}
322
323static int
324intel_bxtwc_pmic_update_aux(struct regmap *regmap, int reg, int raw)
325{
326 u32 bsr_num;
327 u16 resi_val, count = 0, thrsh = 0;
328 u8 alrt_h, alrt_l, cursel = 0;
329
330 bsr_num = raw;
331 bsr_num /= (1 << 5);
332
333 count = fls(bsr_num) - 1;
334
335 cursel = clamp_t(s8, (count - 7), 0, 7);
336 thrsh = raw / (1 << (4 + cursel));
337
338 resi_val = (cursel << 9) | thrsh;
339 alrt_h = (resi_val >> 8) & WHISKEY_COVE_ALRT_HIGH_BIT_MASK;
340 if (regmap_update_bits(regmap,
341 reg - 1,
342 WHISKEY_COVE_ALRT_HIGH_BIT_MASK,
343 alrt_h))
344 return -EIO;
345
346 alrt_l = (u8)resi_val;
347 return regmap_write(regmap, reg, alrt_l);
348}
349
350static int
351intel_bxtwc_pmic_get_policy(struct regmap *regmap, int reg, int bit, u64 *value)
352{
353 u8 mask = BIT(bit);
354 unsigned int val;
355
356 if (regmap_read(regmap, reg, &val))
357 return -EIO;
358
359 *value = (val & mask) >> bit;
360 return 0;
361}
362
363static int
364intel_bxtwc_pmic_update_policy(struct regmap *regmap,
365 int reg, int bit, int enable)
366{
367 u8 mask = BIT(bit), val = enable << bit;
368
369 return regmap_update_bits(regmap, reg, mask, val);
370}
371
372static struct intel_pmic_opregion_data intel_bxtwc_pmic_opregion_data = {
373 .get_power = intel_bxtwc_pmic_get_power,
374 .update_power = intel_bxtwc_pmic_update_power,
375 .get_raw_temp = intel_bxtwc_pmic_get_raw_temp,
376 .update_aux = intel_bxtwc_pmic_update_aux,
377 .get_policy = intel_bxtwc_pmic_get_policy,
378 .update_policy = intel_bxtwc_pmic_update_policy,
379 .power_table = power_table,
380 .power_table_count = ARRAY_SIZE(power_table),
381 .thermal_table = thermal_table,
382 .thermal_table_count = ARRAY_SIZE(thermal_table),
383};
384
385static int intel_bxtwc_pmic_opregion_probe(struct platform_device *pdev)
386{
387 struct intel_soc_pmic *pmic = dev_get_drvdata(pdev->dev.parent);
388
389 return intel_pmic_install_opregion_handler(&pdev->dev,
390 ACPI_HANDLE(pdev->dev.parent),
391 pmic->regmap,
392 &intel_bxtwc_pmic_opregion_data);
393}
394
395static const struct platform_device_id bxt_wc_opregion_id_table[] = {
396 { .name = "bxt_wcove_region" },
397 {},
398};
399
400static struct platform_driver intel_bxtwc_pmic_opregion_driver = {
401 .probe = intel_bxtwc_pmic_opregion_probe,
402 .driver = {
403 .name = "bxt_whiskey_cove_pmic",
404 },
405 .id_table = bxt_wc_opregion_id_table,
406};
407builtin_platform_driver(intel_bxtwc_pmic_opregion_driver);
408
