Merge tag 'for-3.7-rc1' of git://gitorious.org/linux-pwm/linux-pwm
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / staging / omap-thermal / omap4-thermal.c
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1/*
2 * OMAP4 thermal driver.
3 *
4 * Copyright (C) 2011-2012 Texas Instruments Inc.
5 * Contact:
6 * Eduardo Valentin <eduardo.valentin@ti.com>
7 *
8 * This software is licensed under the terms of the GNU General Public
9 * License version 2, as published by the Free Software Foundation, and
10 * may be copied, distributed, and modified under those terms.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 */
18
19#include "omap-thermal.h"
20#include "omap-bandgap.h"
21
22/*
23 * OMAP4430 has one instance of thermal sensor for MPU
24 * need to describe the individual bit fields
25 */
26static struct temp_sensor_registers
27omap4430_mpu_temp_sensor_registers = {
28 .temp_sensor_ctrl = OMAP4430_TEMP_SENSOR_CTRL_OFFSET,
29 .bgap_tempsoff_mask = OMAP4430_BGAP_TEMPSOFF_MASK,
30 .bgap_soc_mask = OMAP4430_BGAP_TEMP_SENSOR_SOC_MASK,
31 .bgap_eocz_mask = OMAP4430_BGAP_TEMP_SENSOR_EOCZ_MASK,
32 .bgap_dtemp_mask = OMAP4430_BGAP_TEMP_SENSOR_DTEMP_MASK,
33
34 .bgap_mode_ctrl = OMAP4430_TEMP_SENSOR_CTRL_OFFSET,
35 .mode_ctrl_mask = OMAP4430_SINGLE_MODE_MASK,
36
37 .bgap_efuse = OMAP4430_FUSE_OPP_BGAP,
38};
39
40/* Thresholds and limits for OMAP4430 MPU temperature sensor */
41static struct temp_sensor_data omap4430_mpu_temp_sensor_data = {
42 .min_freq = OMAP4430_MIN_FREQ,
43 .max_freq = OMAP4430_MAX_FREQ,
44 .max_temp = OMAP4430_MAX_TEMP,
45 .min_temp = OMAP4430_MIN_TEMP,
46 .hyst_val = OMAP4430_HYST_VAL,
47 .adc_start_val = OMAP4430_ADC_START_VALUE,
48 .adc_end_val = OMAP4430_ADC_END_VALUE,
49};
50
51/*
52 * Temperature values in milli degree celsius
53 * ADC code values from 530 to 923
54 */
55static const int
56omap4430_adc_to_temp[OMAP4430_ADC_END_VALUE - OMAP4430_ADC_START_VALUE + 1] = {
57 -38000, -35000, -34000, -32000, -30000, -28000, -26000, -24000, -22000,
58 -20000, -18000, -17000, -15000, -13000, -12000, -10000, -8000, -6000,
59 -5000, -3000, -1000, 0, 2000, 3000, 5000, 6000, 8000, 10000, 12000,
60 13000, 15000, 17000, 19000, 21000, 23000, 25000, 27000, 28000, 30000,
61 32000, 33000, 35000, 37000, 38000, 40000, 42000, 43000, 45000, 47000,
62 48000, 50000, 52000, 53000, 55000, 57000, 58000, 60000, 62000, 64000,
63 66000, 68000, 70000, 71000, 73000, 75000, 77000, 78000, 80000, 82000,
64 83000, 85000, 87000, 88000, 90000, 92000, 93000, 95000, 97000, 98000,
65 100000, 102000, 103000, 105000, 107000, 109000, 111000, 113000, 115000,
66 117000, 118000, 120000, 122000, 123000,
67};
68
69/* OMAP4430 data */
70const struct omap_bandgap_data omap4430_data = {
71 .features = OMAP_BANDGAP_FEATURE_MODE_CONFIG |
72 OMAP_BANDGAP_FEATURE_POWER_SWITCH,
73 .fclock_name = "bandgap_fclk",
74 .div_ck_name = "bandgap_fclk",
75 .conv_table = omap4430_adc_to_temp,
76 .expose_sensor = omap_thermal_expose_sensor,
77 .remove_sensor = omap_thermal_remove_sensor,
78 .sensors = {
79 {
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80 .registers = &omap4430_mpu_temp_sensor_registers,
81 .ts_data = &omap4430_mpu_temp_sensor_data,
82 .domain = "cpu",
83 .slope = 0,
84 .constant = 20000,
85 .slope_pcb = 0,
86 .constant_pcb = 20000,
87 .register_cooling = omap_thermal_register_cpu_cooling,
88 .unregister_cooling = omap_thermal_unregister_cpu_cooling,
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89 },
90 },
91 .sensor_count = 1,
92};
93/*
94 * OMAP4460 has one instance of thermal sensor for MPU
95 * need to describe the individual bit fields
96 */
97static struct temp_sensor_registers
98omap4460_mpu_temp_sensor_registers = {
99 .temp_sensor_ctrl = OMAP4460_TEMP_SENSOR_CTRL_OFFSET,
100 .bgap_tempsoff_mask = OMAP4460_BGAP_TEMPSOFF_MASK,
101 .bgap_soc_mask = OMAP4460_BGAP_TEMP_SENSOR_SOC_MASK,
102 .bgap_eocz_mask = OMAP4460_BGAP_TEMP_SENSOR_EOCZ_MASK,
103 .bgap_dtemp_mask = OMAP4460_BGAP_TEMP_SENSOR_DTEMP_MASK,
104
105 .bgap_mask_ctrl = OMAP4460_BGAP_CTRL_OFFSET,
106 .mask_hot_mask = OMAP4460_MASK_HOT_MASK,
107 .mask_cold_mask = OMAP4460_MASK_COLD_MASK,
108
109 .bgap_mode_ctrl = OMAP4460_BGAP_CTRL_OFFSET,
110 .mode_ctrl_mask = OMAP4460_SINGLE_MODE_MASK,
111
112 .bgap_counter = OMAP4460_BGAP_COUNTER_OFFSET,
113 .counter_mask = OMAP4460_COUNTER_MASK,
114
115 .bgap_threshold = OMAP4460_BGAP_THRESHOLD_OFFSET,
116 .threshold_thot_mask = OMAP4460_T_HOT_MASK,
117 .threshold_tcold_mask = OMAP4460_T_COLD_MASK,
118
119 .tshut_threshold = OMAP4460_BGAP_TSHUT_OFFSET,
120 .tshut_hot_mask = OMAP4460_TSHUT_HOT_MASK,
121 .tshut_cold_mask = OMAP4460_TSHUT_COLD_MASK,
122
123 .bgap_status = OMAP4460_BGAP_STATUS_OFFSET,
124 .status_clean_stop_mask = OMAP4460_CLEAN_STOP_MASK,
125 .status_bgap_alert_mask = OMAP4460_BGAP_ALERT_MASK,
126 .status_hot_mask = OMAP4460_HOT_FLAG_MASK,
127 .status_cold_mask = OMAP4460_COLD_FLAG_MASK,
128
129 .bgap_efuse = OMAP4460_FUSE_OPP_BGAP,
130};
131
132/* Thresholds and limits for OMAP4460 MPU temperature sensor */
133static struct temp_sensor_data omap4460_mpu_temp_sensor_data = {
134 .tshut_hot = OMAP4460_TSHUT_HOT,
135 .tshut_cold = OMAP4460_TSHUT_COLD,
136 .t_hot = OMAP4460_T_HOT,
137 .t_cold = OMAP4460_T_COLD,
138 .min_freq = OMAP4460_MIN_FREQ,
139 .max_freq = OMAP4460_MAX_FREQ,
140 .max_temp = OMAP4460_MAX_TEMP,
141 .min_temp = OMAP4460_MIN_TEMP,
142 .hyst_val = OMAP4460_HYST_VAL,
143 .adc_start_val = OMAP4460_ADC_START_VALUE,
144 .adc_end_val = OMAP4460_ADC_END_VALUE,
145 .update_int1 = 1000,
146 .update_int2 = 2000,
147};
148
149/*
150 * Temperature values in milli degree celsius
151 * ADC code values from 530 to 923
152 */
153static const int
154omap4460_adc_to_temp[OMAP4460_ADC_END_VALUE - OMAP4460_ADC_START_VALUE + 1] = {
155 -40000, -40000, -40000, -40000, -39800, -39400, -39000, -38600, -38200,
156 -37800, -37300, -36800, -36400, -36000, -35600, -35200, -34800,
157 -34300, -33800, -33400, -33000, -32600, -32200, -31800, -31300,
158 -30800, -30400, -30000, -29600, -29200, -28700, -28200, -27800,
159 -27400, -27000, -26600, -26200, -25700, -25200, -24800, -24400,
160 -24000, -23600, -23200, -22700, -22200, -21800, -21400, -21000,
161 -20600, -20200, -19700, -19200, -18800, -18400, -18000, -17600,
162 -17200, -16700, -16200, -15800, -15400, -15000, -14600, -14200,
163 -13700, -13200, -12800, -12400, -12000, -11600, -11200, -10700,
164 -10200, -9800, -9400, -9000, -8600, -8200, -7700, -7200, -6800,
165 -6400, -6000, -5600, -5200, -4800, -4300, -3800, -3400, -3000,
166 -2600, -2200, -1800, -1300, -800, -400, 0, 400, 800, 1200, 1600,
167 2100, 2600, 3000, 3400, 3800, 4200, 4600, 5100, 5600, 6000, 6400,
168 6800, 7200, 7600, 8000, 8500, 9000, 9400, 9800, 10200, 10600, 11000,
169 11400, 11900, 12400, 12800, 13200, 13600, 14000, 14400, 14800,
170 15300, 15800, 16200, 16600, 17000, 17400, 17800, 18200, 18700,
171 19200, 19600, 20000, 20400, 20800, 21200, 21600, 22100, 22600,
172 23000, 23400, 23800, 24200, 24600, 25000, 25400, 25900, 26400,
173 26800, 27200, 27600, 28000, 28400, 28800, 29300, 29800, 30200,
174 30600, 31000, 31400, 31800, 32200, 32600, 33100, 33600, 34000,
175 34400, 34800, 35200, 35600, 36000, 36400, 36800, 37300, 37800,
176 38200, 38600, 39000, 39400, 39800, 40200, 40600, 41100, 41600,
177 42000, 42400, 42800, 43200, 43600, 44000, 44400, 44800, 45300,
178 45800, 46200, 46600, 47000, 47400, 47800, 48200, 48600, 49000,
179 49500, 50000, 50400, 50800, 51200, 51600, 52000, 52400, 52800,
180 53200, 53700, 54200, 54600, 55000, 55400, 55800, 56200, 56600,
181 57000, 57400, 57800, 58200, 58700, 59200, 59600, 60000, 60400,
182 60800, 61200, 61600, 62000, 62400, 62800, 63300, 63800, 64200,
183 64600, 65000, 65400, 65800, 66200, 66600, 67000, 67400, 67800,
184 68200, 68700, 69200, 69600, 70000, 70400, 70800, 71200, 71600,
185 72000, 72400, 72800, 73200, 73600, 74100, 74600, 75000, 75400,
186 75800, 76200, 76600, 77000, 77400, 77800, 78200, 78600, 79000,
187 79400, 79800, 80300, 80800, 81200, 81600, 82000, 82400, 82800,
188 83200, 83600, 84000, 84400, 84800, 85200, 85600, 86000, 86400,
189 86800, 87300, 87800, 88200, 88600, 89000, 89400, 89800, 90200,
190 90600, 91000, 91400, 91800, 92200, 92600, 93000, 93400, 93800,
191 94200, 94600, 95000, 95500, 96000, 96400, 96800, 97200, 97600,
192 98000, 98400, 98800, 99200, 99600, 100000, 100400, 100800, 101200,
193 101600, 102000, 102400, 102800, 103200, 103600, 104000, 104400,
194 104800, 105200, 105600, 106100, 106600, 107000, 107400, 107800,
195 108200, 108600, 109000, 109400, 109800, 110200, 110600, 111000,
196 111400, 111800, 112200, 112600, 113000, 113400, 113800, 114200,
197 114600, 115000, 115400, 115800, 116200, 116600, 117000, 117400,
198 117800, 118200, 118600, 119000, 119400, 119800, 120200, 120600,
199 121000, 121400, 121800, 122200, 122600, 123000, 123400, 123800, 124200,
200 124600, 124900, 125000, 125000, 125000, 125000
201};
202
203/* OMAP4460 data */
204const struct omap_bandgap_data omap4460_data = {
205 .features = OMAP_BANDGAP_FEATURE_TSHUT |
206 OMAP_BANDGAP_FEATURE_TSHUT_CONFIG |
207 OMAP_BANDGAP_FEATURE_TALERT |
208 OMAP_BANDGAP_FEATURE_MODE_CONFIG |
209 OMAP_BANDGAP_FEATURE_POWER_SWITCH |
210 OMAP_BANDGAP_FEATURE_COUNTER,
211 .fclock_name = "bandgap_ts_fclk",
212 .div_ck_name = "div_ts_ck",
213 .conv_table = omap4460_adc_to_temp,
214 .expose_sensor = omap_thermal_expose_sensor,
215 .remove_sensor = omap_thermal_remove_sensor,
216 .sensors = {
217 {
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218 .registers = &omap4460_mpu_temp_sensor_registers,
219 .ts_data = &omap4460_mpu_temp_sensor_data,
220 .domain = "cpu",
221 .slope = OMAP_GRADIENT_SLOPE_4460,
222 .constant = OMAP_GRADIENT_CONST_4460,
223 .slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_4460,
224 .constant_pcb = OMAP_GRADIENT_CONST_W_PCB_4460,
225 .register_cooling = omap_thermal_register_cpu_cooling,
226 .unregister_cooling = omap_thermal_unregister_cpu_cooling,
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227 },
228 },
229 .sensor_count = 1,
230};
231
232/* OMAP4470 data */
233const struct omap_bandgap_data omap4470_data = {
234 .features = OMAP_BANDGAP_FEATURE_TSHUT |
235 OMAP_BANDGAP_FEATURE_TSHUT_CONFIG |
236 OMAP_BANDGAP_FEATURE_TALERT |
237 OMAP_BANDGAP_FEATURE_MODE_CONFIG |
238 OMAP_BANDGAP_FEATURE_POWER_SWITCH |
239 OMAP_BANDGAP_FEATURE_COUNTER,
240 .fclock_name = "bandgap_ts_fclk",
241 .div_ck_name = "div_ts_ck",
242 .conv_table = omap4460_adc_to_temp,
243 .expose_sensor = omap_thermal_expose_sensor,
244 .remove_sensor = omap_thermal_remove_sensor,
245 .sensors = {
246 {
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247 .registers = &omap4460_mpu_temp_sensor_registers,
248 .ts_data = &omap4460_mpu_temp_sensor_data,
249 .domain = "cpu",
250 .slope = OMAP_GRADIENT_SLOPE_4470,
251 .constant = OMAP_GRADIENT_CONST_4470,
252 .slope_pcb = OMAP_GRADIENT_SLOPE_W_PCB_4470,
253 .constant_pcb = OMAP_GRADIENT_CONST_W_PCB_4470,
254 .register_cooling = omap_thermal_register_cpu_cooling,
255 .unregister_cooling = omap_thermal_unregister_cpu_cooling,
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256 },
257 },
258 .sensor_count = 1,
259};