tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (c) 2015, The Linux Foundation. All rights reserved.
4 */
5
6#include <linux/platform_device.h>
7#include "tsens.h"
8
9/* ----- SROT ------ */
10#define SROT_CTRL_OFF 0x0000
11
12/* ----- TM ------ */
13#define TM_INT_EN_OFF 0x0000
14#define TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF 0x0004
15#define TM_Sn_STATUS_OFF 0x0030
16#define TM_TRDY_OFF 0x005c
17
18/* eeprom layout data for 8916 */
19#define MSM8916_BASE0_MASK 0x0000007f
20#define MSM8916_BASE1_MASK 0xfe000000
21#define MSM8916_BASE0_SHIFT 0
22#define MSM8916_BASE1_SHIFT 25
23
24#define MSM8916_S0_P1_MASK 0x00000f80
25#define MSM8916_S1_P1_MASK 0x003e0000
26#define MSM8916_S2_P1_MASK 0xf8000000
27#define MSM8916_S3_P1_MASK 0x000003e0
28#define MSM8916_S4_P1_MASK 0x000f8000
29
30#define MSM8916_S0_P2_MASK 0x0001f000
31#define MSM8916_S1_P2_MASK 0x07c00000
32#define MSM8916_S2_P2_MASK 0x0000001f
33#define MSM8916_S3_P2_MASK 0x00007c00
34#define MSM8916_S4_P2_MASK 0x01f00000
35
36#define MSM8916_S0_P1_SHIFT 7
37#define MSM8916_S1_P1_SHIFT 17
38#define MSM8916_S2_P1_SHIFT 27
39#define MSM8916_S3_P1_SHIFT 5
40#define MSM8916_S4_P1_SHIFT 15
41
42#define MSM8916_S0_P2_SHIFT 12
43#define MSM8916_S1_P2_SHIFT 22
44#define MSM8916_S2_P2_SHIFT 0
45#define MSM8916_S3_P2_SHIFT 10
46#define MSM8916_S4_P2_SHIFT 20
47
48#define MSM8916_CAL_SEL_MASK 0xe0000000
49#define MSM8916_CAL_SEL_SHIFT 29
50
51/* eeprom layout data for 8974 */
52#define BASE1_MASK 0xff
53#define S0_P1_MASK 0x3f00
54#define S1_P1_MASK 0xfc000
55#define S2_P1_MASK 0x3f00000
56#define S3_P1_MASK 0xfc000000
57#define S4_P1_MASK 0x3f
58#define S5_P1_MASK 0xfc0
59#define S6_P1_MASK 0x3f000
60#define S7_P1_MASK 0xfc0000
61#define S8_P1_MASK 0x3f000000
62#define S8_P1_MASK_BKP 0x3f
63#define S9_P1_MASK 0x3f
64#define S9_P1_MASK_BKP 0xfc0
65#define S10_P1_MASK 0xfc0
66#define S10_P1_MASK_BKP 0x3f000
67#define CAL_SEL_0_1 0xc0000000
68#define CAL_SEL_2 0x40000000
69#define CAL_SEL_SHIFT 30
70#define CAL_SEL_SHIFT_2 28
71
72#define S0_P1_SHIFT 8
73#define S1_P1_SHIFT 14
74#define S2_P1_SHIFT 20
75#define S3_P1_SHIFT 26
76#define S5_P1_SHIFT 6
77#define S6_P1_SHIFT 12
78#define S7_P1_SHIFT 18
79#define S8_P1_SHIFT 24
80#define S9_P1_BKP_SHIFT 6
81#define S10_P1_SHIFT 6
82#define S10_P1_BKP_SHIFT 12
83
84#define BASE2_SHIFT 12
85#define BASE2_BKP_SHIFT 18
86#define S0_P2_SHIFT 20
87#define S0_P2_BKP_SHIFT 26
88#define S1_P2_SHIFT 26
89#define S2_P2_BKP_SHIFT 6
90#define S3_P2_SHIFT 6
91#define S3_P2_BKP_SHIFT 12
92#define S4_P2_SHIFT 12
93#define S4_P2_BKP_SHIFT 18
94#define S5_P2_SHIFT 18
95#define S5_P2_BKP_SHIFT 24
96#define S6_P2_SHIFT 24
97#define S7_P2_BKP_SHIFT 6
98#define S8_P2_SHIFT 6
99#define S8_P2_BKP_SHIFT 12
100#define S9_P2_SHIFT 12
101#define S9_P2_BKP_SHIFT 18
102#define S10_P2_SHIFT 18
103#define S10_P2_BKP_SHIFT 24
104
105#define BASE2_MASK 0xff000
106#define BASE2_BKP_MASK 0xfc0000
107#define S0_P2_MASK 0x3f00000
108#define S0_P2_BKP_MASK 0xfc000000
109#define S1_P2_MASK 0xfc000000
110#define S1_P2_BKP_MASK 0x3f
111#define S2_P2_MASK 0x3f
112#define S2_P2_BKP_MASK 0xfc0
113#define S3_P2_MASK 0xfc0
114#define S3_P2_BKP_MASK 0x3f000
115#define S4_P2_MASK 0x3f000
116#define S4_P2_BKP_MASK 0xfc0000
117#define S5_P2_MASK 0xfc0000
118#define S5_P2_BKP_MASK 0x3f000000
119#define S6_P2_MASK 0x3f000000
120#define S6_P2_BKP_MASK 0x3f
121#define S7_P2_MASK 0x3f
122#define S7_P2_BKP_MASK 0xfc0
123#define S8_P2_MASK 0xfc0
124#define S8_P2_BKP_MASK 0x3f000
125#define S9_P2_MASK 0x3f000
126#define S9_P2_BKP_MASK 0xfc0000
127#define S10_P2_MASK 0xfc0000
128#define S10_P2_BKP_MASK 0x3f000000
129
130#define BKP_SEL 0x3
131#define BKP_REDUN_SEL 0xe0000000
132#define BKP_REDUN_SHIFT 29
133
134#define BIT_APPEND 0x3
135
136static int calibrate_8916(struct tsens_priv *priv)
137{
138 int base0 = 0, base1 = 0, i;
139 u32 p1[5], p2[5];
140 int mode = 0;
141 u32 *qfprom_cdata, *qfprom_csel;
142
143 qfprom_cdata = (u32 *)qfprom_read(priv->dev, "calib");
144 if (IS_ERR(qfprom_cdata))
145 return PTR_ERR(qfprom_cdata);
146
147 qfprom_csel = (u32 *)qfprom_read(priv->dev, "calib_sel");
148 if (IS_ERR(qfprom_csel))
149 return PTR_ERR(qfprom_csel);
150
151 mode = (qfprom_csel[0] & MSM8916_CAL_SEL_MASK) >> MSM8916_CAL_SEL_SHIFT;
152 dev_dbg(priv->dev, "calibration mode is %d\n", mode);
153
154 switch (mode) {
155 case TWO_PT_CALIB:
156 base1 = (qfprom_cdata[1] & MSM8916_BASE1_MASK) >> MSM8916_BASE1_SHIFT;
157 p2[0] = (qfprom_cdata[0] & MSM8916_S0_P2_MASK) >> MSM8916_S0_P2_SHIFT;
158 p2[1] = (qfprom_cdata[0] & MSM8916_S1_P2_MASK) >> MSM8916_S1_P2_SHIFT;
159 p2[2] = (qfprom_cdata[1] & MSM8916_S2_P2_MASK) >> MSM8916_S2_P2_SHIFT;
160 p2[3] = (qfprom_cdata[1] & MSM8916_S3_P2_MASK) >> MSM8916_S3_P2_SHIFT;
161 p2[4] = (qfprom_cdata[1] & MSM8916_S4_P2_MASK) >> MSM8916_S4_P2_SHIFT;
162 for (i = 0; i < priv->num_sensors; i++)
163 p2[i] = ((base1 + p2[i]) << 3);
164 /* Fall through */
165 case ONE_PT_CALIB2:
166 base0 = (qfprom_cdata[0] & MSM8916_BASE0_MASK);
167 p1[0] = (qfprom_cdata[0] & MSM8916_S0_P1_MASK) >> MSM8916_S0_P1_SHIFT;
168 p1[1] = (qfprom_cdata[0] & MSM8916_S1_P1_MASK) >> MSM8916_S1_P1_SHIFT;
169 p1[2] = (qfprom_cdata[0] & MSM8916_S2_P1_MASK) >> MSM8916_S2_P1_SHIFT;
170 p1[3] = (qfprom_cdata[1] & MSM8916_S3_P1_MASK) >> MSM8916_S3_P1_SHIFT;
171 p1[4] = (qfprom_cdata[1] & MSM8916_S4_P1_MASK) >> MSM8916_S4_P1_SHIFT;
172 for (i = 0; i < priv->num_sensors; i++)
173 p1[i] = (((base0) + p1[i]) << 3);
174 break;
175 default:
176 for (i = 0; i < priv->num_sensors; i++) {
177 p1[i] = 500;
178 p2[i] = 780;
179 }
180 break;
181 }
182
183 compute_intercept_slope(priv, p1, p2, mode);
184
185 return 0;
186}
187
188static int calibrate_8974(struct tsens_priv *priv)
189{
190 int base1 = 0, base2 = 0, i;
191 u32 p1[11], p2[11];
192 int mode = 0;
193 u32 *calib, *bkp;
194 u32 calib_redun_sel;
195
196 calib = (u32 *)qfprom_read(priv->dev, "calib");
197 if (IS_ERR(calib))
198 return PTR_ERR(calib);
199
200 bkp = (u32 *)qfprom_read(priv->dev, "calib_backup");
201 if (IS_ERR(bkp))
202 return PTR_ERR(bkp);
203
204 calib_redun_sel = bkp[1] & BKP_REDUN_SEL;
205 calib_redun_sel >>= BKP_REDUN_SHIFT;
206
207 if (calib_redun_sel == BKP_SEL) {
208 mode = (calib[4] & CAL_SEL_0_1) >> CAL_SEL_SHIFT;
209 mode |= (calib[5] & CAL_SEL_2) >> CAL_SEL_SHIFT_2;
210
211 switch (mode) {
212 case TWO_PT_CALIB:
213 base2 = (bkp[2] & BASE2_BKP_MASK) >> BASE2_BKP_SHIFT;
214 p2[0] = (bkp[2] & S0_P2_BKP_MASK) >> S0_P2_BKP_SHIFT;
215 p2[1] = (bkp[3] & S1_P2_BKP_MASK);
216 p2[2] = (bkp[3] & S2_P2_BKP_MASK) >> S2_P2_BKP_SHIFT;
217 p2[3] = (bkp[3] & S3_P2_BKP_MASK) >> S3_P2_BKP_SHIFT;
218 p2[4] = (bkp[3] & S4_P2_BKP_MASK) >> S4_P2_BKP_SHIFT;
219 p2[5] = (calib[4] & S5_P2_BKP_MASK) >> S5_P2_BKP_SHIFT;
220 p2[6] = (calib[5] & S6_P2_BKP_MASK);
221 p2[7] = (calib[5] & S7_P2_BKP_MASK) >> S7_P2_BKP_SHIFT;
222 p2[8] = (calib[5] & S8_P2_BKP_MASK) >> S8_P2_BKP_SHIFT;
223 p2[9] = (calib[5] & S9_P2_BKP_MASK) >> S9_P2_BKP_SHIFT;
224 p2[10] = (calib[5] & S10_P2_BKP_MASK) >> S10_P2_BKP_SHIFT;
225 /* Fall through */
226 case ONE_PT_CALIB:
227 case ONE_PT_CALIB2:
228 base1 = bkp[0] & BASE1_MASK;
229 p1[0] = (bkp[0] & S0_P1_MASK) >> S0_P1_SHIFT;
230 p1[1] = (bkp[0] & S1_P1_MASK) >> S1_P1_SHIFT;
231 p1[2] = (bkp[0] & S2_P1_MASK) >> S2_P1_SHIFT;
232 p1[3] = (bkp[0] & S3_P1_MASK) >> S3_P1_SHIFT;
233 p1[4] = (bkp[1] & S4_P1_MASK);
234 p1[5] = (bkp[1] & S5_P1_MASK) >> S5_P1_SHIFT;
235 p1[6] = (bkp[1] & S6_P1_MASK) >> S6_P1_SHIFT;
236 p1[7] = (bkp[1] & S7_P1_MASK) >> S7_P1_SHIFT;
237 p1[8] = (bkp[2] & S8_P1_MASK_BKP) >> S8_P1_SHIFT;
238 p1[9] = (bkp[2] & S9_P1_MASK_BKP) >> S9_P1_BKP_SHIFT;
239 p1[10] = (bkp[2] & S10_P1_MASK_BKP) >> S10_P1_BKP_SHIFT;
240 break;
241 }
242 } else {
243 mode = (calib[1] & CAL_SEL_0_1) >> CAL_SEL_SHIFT;
244 mode |= (calib[3] & CAL_SEL_2) >> CAL_SEL_SHIFT_2;
245
246 switch (mode) {
247 case TWO_PT_CALIB:
248 base2 = (calib[2] & BASE2_MASK) >> BASE2_SHIFT;
249 p2[0] = (calib[2] & S0_P2_MASK) >> S0_P2_SHIFT;
250 p2[1] = (calib[2] & S1_P2_MASK) >> S1_P2_SHIFT;
251 p2[2] = (calib[3] & S2_P2_MASK);
252 p2[3] = (calib[3] & S3_P2_MASK) >> S3_P2_SHIFT;
253 p2[4] = (calib[3] & S4_P2_MASK) >> S4_P2_SHIFT;
254 p2[5] = (calib[3] & S5_P2_MASK) >> S5_P2_SHIFT;
255 p2[6] = (calib[3] & S6_P2_MASK) >> S6_P2_SHIFT;
256 p2[7] = (calib[4] & S7_P2_MASK);
257 p2[8] = (calib[4] & S8_P2_MASK) >> S8_P2_SHIFT;
258 p2[9] = (calib[4] & S9_P2_MASK) >> S9_P2_SHIFT;
259 p2[10] = (calib[4] & S10_P2_MASK) >> S10_P2_SHIFT;
260 /* Fall through */
261 case ONE_PT_CALIB:
262 case ONE_PT_CALIB2:
263 base1 = calib[0] & BASE1_MASK;
264 p1[0] = (calib[0] & S0_P1_MASK) >> S0_P1_SHIFT;
265 p1[1] = (calib[0] & S1_P1_MASK) >> S1_P1_SHIFT;
266 p1[2] = (calib[0] & S2_P1_MASK) >> S2_P1_SHIFT;
267 p1[3] = (calib[0] & S3_P1_MASK) >> S3_P1_SHIFT;
268 p1[4] = (calib[1] & S4_P1_MASK);
269 p1[5] = (calib[1] & S5_P1_MASK) >> S5_P1_SHIFT;
270 p1[6] = (calib[1] & S6_P1_MASK) >> S6_P1_SHIFT;
271 p1[7] = (calib[1] & S7_P1_MASK) >> S7_P1_SHIFT;
272 p1[8] = (calib[1] & S8_P1_MASK) >> S8_P1_SHIFT;
273 p1[9] = (calib[2] & S9_P1_MASK);
274 p1[10] = (calib[2] & S10_P1_MASK) >> S10_P1_SHIFT;
275 break;
276 }
277 }
278
279 switch (mode) {
280 case ONE_PT_CALIB:
281 for (i = 0; i < priv->num_sensors; i++)
282 p1[i] += (base1 << 2) | BIT_APPEND;
283 break;
284 case TWO_PT_CALIB:
285 for (i = 0; i < priv->num_sensors; i++) {
286 p2[i] += base2;
287 p2[i] <<= 2;
288 p2[i] |= BIT_APPEND;
289 }
290 /* Fall through */
291 case ONE_PT_CALIB2:
292 for (i = 0; i < priv->num_sensors; i++) {
293 p1[i] += base1;
294 p1[i] <<= 2;
295 p1[i] |= BIT_APPEND;
296 }
297 break;
298 default:
299 for (i = 0; i < priv->num_sensors; i++)
300 p2[i] = 780;
301 p1[0] = 502;
302 p1[1] = 509;
303 p1[2] = 503;
304 p1[3] = 509;
305 p1[4] = 505;
306 p1[5] = 509;
307 p1[6] = 507;
308 p1[7] = 510;
309 p1[8] = 508;
310 p1[9] = 509;
311 p1[10] = 508;
312 break;
313 }
314
315 compute_intercept_slope(priv, p1, p2, mode);
316
317 return 0;
318}
319
320/* v0.1: 8916, 8974 */
321
322static const struct tsens_features tsens_v0_1_feat = {
323 .ver_major = VER_0_1,
324 .crit_int = 0,
325 .adc = 1,
326 .srot_split = 1,
327 .max_sensors = 11,
328};
329
330static const struct reg_field tsens_v0_1_regfields[MAX_REGFIELDS] = {
331 /* ----- SROT ------ */
332 /* No VERSION information */
333
334 /* CTRL_OFFSET */
335 [TSENS_EN] = REG_FIELD(SROT_CTRL_OFF, 0, 0),
336 [TSENS_SW_RST] = REG_FIELD(SROT_CTRL_OFF, 1, 1),
337
338 /* ----- TM ------ */
339 /* INTERRUPT ENABLE */
340 [INT_EN] = REG_FIELD(TM_INT_EN_OFF, 0, 0),
341
342 /* Sn_STATUS */
343 REG_FIELD_FOR_EACH_SENSOR11(LAST_TEMP, TM_Sn_STATUS_OFF, 0, 9),
344 /* No VALID field on v0.1 */
345 REG_FIELD_FOR_EACH_SENSOR11(MIN_STATUS, TM_Sn_STATUS_OFF, 10, 10),
346 REG_FIELD_FOR_EACH_SENSOR11(LOWER_STATUS, TM_Sn_STATUS_OFF, 11, 11),
347 REG_FIELD_FOR_EACH_SENSOR11(UPPER_STATUS, TM_Sn_STATUS_OFF, 12, 12),
348 /* No CRITICAL field on v0.1 */
349 REG_FIELD_FOR_EACH_SENSOR11(MAX_STATUS, TM_Sn_STATUS_OFF, 13, 13),
350
351 /* TRDY: 1=ready, 0=in progress */
352 [TRDY] = REG_FIELD(TM_TRDY_OFF, 0, 0),
353};
354
355static const struct tsens_ops ops_8916 = {
356 .init = init_common,
357 .calibrate = calibrate_8916,
358 .get_temp = get_temp_common,
359};
360
361const struct tsens_plat_data data_8916 = {
362 .num_sensors = 5,
363 .ops = &ops_8916,
364 .hw_ids = (unsigned int []){0, 1, 2, 4, 5 },
365
366 .feat = &tsens_v0_1_feat,
367 .fields = tsens_v0_1_regfields,
368};
369
370static const struct tsens_ops ops_8974 = {
371 .init = init_common,
372 .calibrate = calibrate_8974,
373 .get_temp = get_temp_common,
374};
375
376const struct tsens_plat_data data_8974 = {
377 .num_sensors = 11,
378 .ops = &ops_8974,
379 .feat = &tsens_v0_1_feat,
380 .fields = tsens_v0_1_regfields,
381};