xref: /openbmc/linux/include/linux/mfd/wm8350/rtc.h (revision 2874c5fd)
1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * rtc.h  --  RTC driver for Wolfson WM8350 PMIC
4  *
5  * Copyright 2007 Wolfson Microelectronics PLC
6  */
7 
8 #ifndef __LINUX_MFD_WM8350_RTC_H
9 #define __LINUX_MFD_WM8350_RTC_H
10 
11 #include <linux/platform_device.h>
12 
13 /*
14  * Register values.
15  */
16 #define WM8350_RTC_SECONDS_MINUTES              0x10
17 #define WM8350_RTC_HOURS_DAY                    0x11
18 #define WM8350_RTC_DATE_MONTH                   0x12
19 #define WM8350_RTC_YEAR                         0x13
20 #define WM8350_ALARM_SECONDS_MINUTES            0x14
21 #define WM8350_ALARM_HOURS_DAY                  0x15
22 #define WM8350_ALARM_DATE_MONTH                 0x16
23 #define WM8350_RTC_TIME_CONTROL                 0x17
24 
25 /*
26  * R16 (0x10) - RTC Seconds/Minutes
27  */
28 #define WM8350_RTC_MINS_MASK                    0x7F00
29 #define WM8350_RTC_MINS_SHIFT                        8
30 #define WM8350_RTC_SECS_MASK                    0x007F
31 #define WM8350_RTC_SECS_SHIFT                        0
32 
33 /*
34  * R17 (0x11) - RTC Hours/Day
35  */
36 #define WM8350_RTC_DAY_MASK                     0x0700
37 #define WM8350_RTC_DAY_SHIFT                         8
38 #define WM8350_RTC_HPM_MASK                     0x0020
39 #define WM8350_RTC_HPM_SHIFT                         5
40 #define WM8350_RTC_HRS_MASK                     0x001F
41 #define WM8350_RTC_HRS_SHIFT                         0
42 
43 /* Bit values for R21 (0x15) */
44 #define WM8350_RTC_DAY_SUN                           1
45 #define WM8350_RTC_DAY_MON                           2
46 #define WM8350_RTC_DAY_TUE                           3
47 #define WM8350_RTC_DAY_WED                           4
48 #define WM8350_RTC_DAY_THU                           5
49 #define WM8350_RTC_DAY_FRI                           6
50 #define WM8350_RTC_DAY_SAT                           7
51 
52 #define WM8350_RTC_HPM_AM                            0
53 #define WM8350_RTC_HPM_PM                            1
54 
55 /*
56  * R18 (0x12) - RTC Date/Month
57  */
58 #define WM8350_RTC_MTH_MASK                     0x1F00
59 #define WM8350_RTC_MTH_SHIFT                         8
60 #define WM8350_RTC_DATE_MASK                    0x003F
61 #define WM8350_RTC_DATE_SHIFT                        0
62 
63 /* Bit values for R22 (0x16) */
64 #define WM8350_RTC_MTH_JAN                           1
65 #define WM8350_RTC_MTH_FEB                           2
66 #define WM8350_RTC_MTH_MAR                           3
67 #define WM8350_RTC_MTH_APR                           4
68 #define WM8350_RTC_MTH_MAY                           5
69 #define WM8350_RTC_MTH_JUN                           6
70 #define WM8350_RTC_MTH_JUL                           7
71 #define WM8350_RTC_MTH_AUG                           8
72 #define WM8350_RTC_MTH_SEP                           9
73 #define WM8350_RTC_MTH_OCT                          10
74 #define WM8350_RTC_MTH_NOV                          11
75 #define WM8350_RTC_MTH_DEC                          12
76 #define WM8350_RTC_MTH_JAN_BCD                    0x01
77 #define WM8350_RTC_MTH_FEB_BCD                    0x02
78 #define WM8350_RTC_MTH_MAR_BCD                    0x03
79 #define WM8350_RTC_MTH_APR_BCD                    0x04
80 #define WM8350_RTC_MTH_MAY_BCD                    0x05
81 #define WM8350_RTC_MTH_JUN_BCD                    0x06
82 #define WM8350_RTC_MTH_JUL_BCD                    0x07
83 #define WM8350_RTC_MTH_AUG_BCD                    0x08
84 #define WM8350_RTC_MTH_SEP_BCD                    0x09
85 #define WM8350_RTC_MTH_OCT_BCD                    0x10
86 #define WM8350_RTC_MTH_NOV_BCD                    0x11
87 #define WM8350_RTC_MTH_DEC_BCD                    0x12
88 
89 /*
90  * R19 (0x13) - RTC Year
91  */
92 #define WM8350_RTC_YHUNDREDS_MASK               0x3F00
93 #define WM8350_RTC_YHUNDREDS_SHIFT                   8
94 #define WM8350_RTC_YUNITS_MASK                  0x00FF
95 #define WM8350_RTC_YUNITS_SHIFT                      0
96 
97 /*
98  * R20 (0x14) - Alarm Seconds/Minutes
99  */
100 #define WM8350_RTC_ALMMINS_MASK                 0x7F00
101 #define WM8350_RTC_ALMMINS_SHIFT                     8
102 #define WM8350_RTC_ALMSECS_MASK                 0x007F
103 #define WM8350_RTC_ALMSECS_SHIFT                     0
104 
105 /* Bit values for R20 (0x14) */
106 #define WM8350_RTC_ALMMINS_DONT_CARE                -1
107 #define WM8350_RTC_ALMSECS_DONT_CARE                -1
108 
109 /*
110  * R21 (0x15) - Alarm Hours/Day
111  */
112 #define WM8350_RTC_ALMDAY_MASK                  0x0F00
113 #define WM8350_RTC_ALMDAY_SHIFT                      8
114 #define WM8350_RTC_ALMHPM_MASK                  0x0020
115 #define WM8350_RTC_ALMHPM_SHIFT                      5
116 #define WM8350_RTC_ALMHRS_MASK                  0x001F
117 #define WM8350_RTC_ALMHRS_SHIFT                      0
118 
119 /* Bit values for R21 (0x15) */
120 #define WM8350_RTC_ALMDAY_DONT_CARE                 -1
121 #define WM8350_RTC_ALMDAY_SUN                        1
122 #define WM8350_RTC_ALMDAY_MON                        2
123 #define WM8350_RTC_ALMDAY_TUE                        3
124 #define WM8350_RTC_ALMDAY_WED                        4
125 #define WM8350_RTC_ALMDAY_THU                        5
126 #define WM8350_RTC_ALMDAY_FRI                        6
127 #define WM8350_RTC_ALMDAY_SAT                        7
128 
129 #define WM8350_RTC_ALMHPM_AM                         0
130 #define WM8350_RTC_ALMHPM_PM                         1
131 
132 #define WM8350_RTC_ALMHRS_DONT_CARE                 -1
133 
134 /*
135  * R22 (0x16) - Alarm Date/Month
136  */
137 #define WM8350_RTC_ALMMTH_MASK                  0x1F00
138 #define WM8350_RTC_ALMMTH_SHIFT                      8
139 #define WM8350_RTC_ALMDATE_MASK                 0x003F
140 #define WM8350_RTC_ALMDATE_SHIFT                     0
141 
142 /* Bit values for R22 (0x16) */
143 #define WM8350_RTC_ALMDATE_DONT_CARE                -1
144 
145 #define WM8350_RTC_ALMMTH_DONT_CARE                 -1
146 #define WM8350_RTC_ALMMTH_JAN                        1
147 #define WM8350_RTC_ALMMTH_FEB                        2
148 #define WM8350_RTC_ALMMTH_MAR                        3
149 #define WM8350_RTC_ALMMTH_APR                        4
150 #define WM8350_RTC_ALMMTH_MAY                        5
151 #define WM8350_RTC_ALMMTH_JUN                        6
152 #define WM8350_RTC_ALMMTH_JUL                        7
153 #define WM8350_RTC_ALMMTH_AUG                        8
154 #define WM8350_RTC_ALMMTH_SEP                        9
155 #define WM8350_RTC_ALMMTH_OCT                       10
156 #define WM8350_RTC_ALMMTH_NOV                       11
157 #define WM8350_RTC_ALMMTH_DEC                       12
158 #define WM8350_RTC_ALMMTH_JAN_BCD                 0x01
159 #define WM8350_RTC_ALMMTH_FEB_BCD                 0x02
160 #define WM8350_RTC_ALMMTH_MAR_BCD                 0x03
161 #define WM8350_RTC_ALMMTH_APR_BCD                 0x04
162 #define WM8350_RTC_ALMMTH_MAY_BCD                 0x05
163 #define WM8350_RTC_ALMMTH_JUN_BCD                 0x06
164 #define WM8350_RTC_ALMMTH_JUL_BCD                 0x07
165 #define WM8350_RTC_ALMMTH_AUG_BCD                 0x08
166 #define WM8350_RTC_ALMMTH_SEP_BCD                 0x09
167 #define WM8350_RTC_ALMMTH_OCT_BCD                 0x10
168 #define WM8350_RTC_ALMMTH_NOV_BCD                 0x11
169 #define WM8350_RTC_ALMMTH_DEC_BCD                 0x12
170 
171 /*
172  * R23 (0x17) - RTC Time Control
173  */
174 #define WM8350_RTC_BCD                          0x8000
175 #define WM8350_RTC_BCD_MASK                     0x8000
176 #define WM8350_RTC_BCD_SHIFT                        15
177 #define WM8350_RTC_12HR                         0x4000
178 #define WM8350_RTC_12HR_MASK                    0x4000
179 #define WM8350_RTC_12HR_SHIFT                       14
180 #define WM8350_RTC_DST                          0x2000
181 #define WM8350_RTC_DST_MASK                     0x2000
182 #define WM8350_RTC_DST_SHIFT                        13
183 #define WM8350_RTC_SET                          0x0800
184 #define WM8350_RTC_SET_MASK                     0x0800
185 #define WM8350_RTC_SET_SHIFT                        11
186 #define WM8350_RTC_STS                          0x0400
187 #define WM8350_RTC_STS_MASK                     0x0400
188 #define WM8350_RTC_STS_SHIFT                        10
189 #define WM8350_RTC_ALMSET                       0x0200
190 #define WM8350_RTC_ALMSET_MASK                  0x0200
191 #define WM8350_RTC_ALMSET_SHIFT                      9
192 #define WM8350_RTC_ALMSTS                       0x0100
193 #define WM8350_RTC_ALMSTS_MASK                  0x0100
194 #define WM8350_RTC_ALMSTS_SHIFT                      8
195 #define WM8350_RTC_PINT                         0x0070
196 #define WM8350_RTC_PINT_MASK                    0x0070
197 #define WM8350_RTC_PINT_SHIFT                        4
198 #define WM8350_RTC_DSW                          0x000F
199 #define WM8350_RTC_DSW_MASK                     0x000F
200 #define WM8350_RTC_DSW_SHIFT                         0
201 
202 /* Bit values for R23 (0x17) */
203 #define WM8350_RTC_BCD_BINARY                        0
204 #define WM8350_RTC_BCD_BCD                           1
205 
206 #define WM8350_RTC_12HR_24HR                         0
207 #define WM8350_RTC_12HR_12HR                         1
208 
209 #define WM8350_RTC_DST_DISABLED                      0
210 #define WM8350_RTC_DST_ENABLED                       1
211 
212 #define WM8350_RTC_SET_RUN                           0
213 #define WM8350_RTC_SET_SET                           1
214 
215 #define WM8350_RTC_STS_RUNNING                       0
216 #define WM8350_RTC_STS_STOPPED                       1
217 
218 #define WM8350_RTC_ALMSET_RUN                        0
219 #define WM8350_RTC_ALMSET_SET                        1
220 
221 #define WM8350_RTC_ALMSTS_RUNNING                    0
222 #define WM8350_RTC_ALMSTS_STOPPED                    1
223 
224 #define WM8350_RTC_PINT_DISABLED                     0
225 #define WM8350_RTC_PINT_SECS                         1
226 #define WM8350_RTC_PINT_MINS                         2
227 #define WM8350_RTC_PINT_HRS                          3
228 #define WM8350_RTC_PINT_DAYS                         4
229 #define WM8350_RTC_PINT_MTHS                         5
230 
231 #define WM8350_RTC_DSW_DISABLED                      0
232 #define WM8350_RTC_DSW_1HZ                           1
233 #define WM8350_RTC_DSW_2HZ                           2
234 #define WM8350_RTC_DSW_4HZ                           3
235 #define WM8350_RTC_DSW_8HZ                           4
236 #define WM8350_RTC_DSW_16HZ                          5
237 #define WM8350_RTC_DSW_32HZ                          6
238 #define WM8350_RTC_DSW_64HZ                          7
239 #define WM8350_RTC_DSW_128HZ                         8
240 #define WM8350_RTC_DSW_256HZ                         9
241 #define WM8350_RTC_DSW_512HZ                        10
242 #define WM8350_RTC_DSW_1024HZ                       11
243 
244 /*
245  * R218 (0xDA) - RTC Tick Control
246  */
247 #define WM8350_RTC_TICKSTS                      0x4000
248 #define WM8350_RTC_CLKSRC                       0x2000
249 #define WM8350_RTC_TRIM_MASK                    0x03FF
250 
251 /*
252  * RTC Interrupts.
253  */
254 #define WM8350_IRQ_RTC_PER			7
255 #define WM8350_IRQ_RTC_SEC			8
256 #define WM8350_IRQ_RTC_ALM			9
257 
258 struct wm8350_rtc {
259 	struct platform_device *pdev;
260 	struct rtc_device *rtc;
261 	int alarm_enabled;      /* used over suspend/resume */
262 	int update_enabled;
263 };
264 
265 #endif
266