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0001 /* SPDX-License-Identifier: GPL-2.0-or-later */
0002 /*
0003  * rtc.h  --  RTC driver for Wolfson WM8350 PMIC
0004  *
0005  * Copyright 2007 Wolfson Microelectronics PLC
0006  */
0007 
0008 #ifndef __LINUX_MFD_WM8350_RTC_H
0009 #define __LINUX_MFD_WM8350_RTC_H
0010 
0011 #include <linux/platform_device.h>
0012 
0013 /*
0014  * Register values.
0015  */
0016 #define WM8350_RTC_SECONDS_MINUTES              0x10
0017 #define WM8350_RTC_HOURS_DAY                    0x11
0018 #define WM8350_RTC_DATE_MONTH                   0x12
0019 #define WM8350_RTC_YEAR                         0x13
0020 #define WM8350_ALARM_SECONDS_MINUTES            0x14
0021 #define WM8350_ALARM_HOURS_DAY                  0x15
0022 #define WM8350_ALARM_DATE_MONTH                 0x16
0023 #define WM8350_RTC_TIME_CONTROL                 0x17
0024 
0025 /*
0026  * R16 (0x10) - RTC Seconds/Minutes
0027  */
0028 #define WM8350_RTC_MINS_MASK                    0x7F00
0029 #define WM8350_RTC_MINS_SHIFT                        8
0030 #define WM8350_RTC_SECS_MASK                    0x007F
0031 #define WM8350_RTC_SECS_SHIFT                        0
0032 
0033 /*
0034  * R17 (0x11) - RTC Hours/Day
0035  */
0036 #define WM8350_RTC_DAY_MASK                     0x0700
0037 #define WM8350_RTC_DAY_SHIFT                         8
0038 #define WM8350_RTC_HPM_MASK                     0x0020
0039 #define WM8350_RTC_HPM_SHIFT                         5
0040 #define WM8350_RTC_HRS_MASK                     0x001F
0041 #define WM8350_RTC_HRS_SHIFT                         0
0042 
0043 /* Bit values for R21 (0x15) */
0044 #define WM8350_RTC_DAY_SUN                           1
0045 #define WM8350_RTC_DAY_MON                           2
0046 #define WM8350_RTC_DAY_TUE                           3
0047 #define WM8350_RTC_DAY_WED                           4
0048 #define WM8350_RTC_DAY_THU                           5
0049 #define WM8350_RTC_DAY_FRI                           6
0050 #define WM8350_RTC_DAY_SAT                           7
0051 
0052 #define WM8350_RTC_HPM_AM                            0
0053 #define WM8350_RTC_HPM_PM                            1
0054 
0055 /*
0056  * R18 (0x12) - RTC Date/Month
0057  */
0058 #define WM8350_RTC_MTH_MASK                     0x1F00
0059 #define WM8350_RTC_MTH_SHIFT                         8
0060 #define WM8350_RTC_DATE_MASK                    0x003F
0061 #define WM8350_RTC_DATE_SHIFT                        0
0062 
0063 /* Bit values for R22 (0x16) */
0064 #define WM8350_RTC_MTH_JAN                           1
0065 #define WM8350_RTC_MTH_FEB                           2
0066 #define WM8350_RTC_MTH_MAR                           3
0067 #define WM8350_RTC_MTH_APR                           4
0068 #define WM8350_RTC_MTH_MAY                           5
0069 #define WM8350_RTC_MTH_JUN                           6
0070 #define WM8350_RTC_MTH_JUL                           7
0071 #define WM8350_RTC_MTH_AUG                           8
0072 #define WM8350_RTC_MTH_SEP                           9
0073 #define WM8350_RTC_MTH_OCT                          10
0074 #define WM8350_RTC_MTH_NOV                          11
0075 #define WM8350_RTC_MTH_DEC                          12
0076 #define WM8350_RTC_MTH_JAN_BCD                    0x01
0077 #define WM8350_RTC_MTH_FEB_BCD                    0x02
0078 #define WM8350_RTC_MTH_MAR_BCD                    0x03
0079 #define WM8350_RTC_MTH_APR_BCD                    0x04
0080 #define WM8350_RTC_MTH_MAY_BCD                    0x05
0081 #define WM8350_RTC_MTH_JUN_BCD                    0x06
0082 #define WM8350_RTC_MTH_JUL_BCD                    0x07
0083 #define WM8350_RTC_MTH_AUG_BCD                    0x08
0084 #define WM8350_RTC_MTH_SEP_BCD                    0x09
0085 #define WM8350_RTC_MTH_OCT_BCD                    0x10
0086 #define WM8350_RTC_MTH_NOV_BCD                    0x11
0087 #define WM8350_RTC_MTH_DEC_BCD                    0x12
0088 
0089 /*
0090  * R19 (0x13) - RTC Year
0091  */
0092 #define WM8350_RTC_YHUNDREDS_MASK               0x3F00
0093 #define WM8350_RTC_YHUNDREDS_SHIFT                   8
0094 #define WM8350_RTC_YUNITS_MASK                  0x00FF
0095 #define WM8350_RTC_YUNITS_SHIFT                      0
0096 
0097 /*
0098  * R20 (0x14) - Alarm Seconds/Minutes
0099  */
0100 #define WM8350_RTC_ALMMINS_MASK                 0x7F00
0101 #define WM8350_RTC_ALMMINS_SHIFT                     8
0102 #define WM8350_RTC_ALMSECS_MASK                 0x007F
0103 #define WM8350_RTC_ALMSECS_SHIFT                     0
0104 
0105 /* Bit values for R20 (0x14) */
0106 #define WM8350_RTC_ALMMINS_DONT_CARE                -1
0107 #define WM8350_RTC_ALMSECS_DONT_CARE                -1
0108 
0109 /*
0110  * R21 (0x15) - Alarm Hours/Day
0111  */
0112 #define WM8350_RTC_ALMDAY_MASK                  0x0F00
0113 #define WM8350_RTC_ALMDAY_SHIFT                      8
0114 #define WM8350_RTC_ALMHPM_MASK                  0x0020
0115 #define WM8350_RTC_ALMHPM_SHIFT                      5
0116 #define WM8350_RTC_ALMHRS_MASK                  0x001F
0117 #define WM8350_RTC_ALMHRS_SHIFT                      0
0118 
0119 /* Bit values for R21 (0x15) */
0120 #define WM8350_RTC_ALMDAY_DONT_CARE                 -1
0121 #define WM8350_RTC_ALMDAY_SUN                        1
0122 #define WM8350_RTC_ALMDAY_MON                        2
0123 #define WM8350_RTC_ALMDAY_TUE                        3
0124 #define WM8350_RTC_ALMDAY_WED                        4
0125 #define WM8350_RTC_ALMDAY_THU                        5
0126 #define WM8350_RTC_ALMDAY_FRI                        6
0127 #define WM8350_RTC_ALMDAY_SAT                        7
0128 
0129 #define WM8350_RTC_ALMHPM_AM                         0
0130 #define WM8350_RTC_ALMHPM_PM                         1
0131 
0132 #define WM8350_RTC_ALMHRS_DONT_CARE                 -1
0133 
0134 /*
0135  * R22 (0x16) - Alarm Date/Month
0136  */
0137 #define WM8350_RTC_ALMMTH_MASK                  0x1F00
0138 #define WM8350_RTC_ALMMTH_SHIFT                      8
0139 #define WM8350_RTC_ALMDATE_MASK                 0x003F
0140 #define WM8350_RTC_ALMDATE_SHIFT                     0
0141 
0142 /* Bit values for R22 (0x16) */
0143 #define WM8350_RTC_ALMDATE_DONT_CARE                -1
0144 
0145 #define WM8350_RTC_ALMMTH_DONT_CARE                 -1
0146 #define WM8350_RTC_ALMMTH_JAN                        1
0147 #define WM8350_RTC_ALMMTH_FEB                        2
0148 #define WM8350_RTC_ALMMTH_MAR                        3
0149 #define WM8350_RTC_ALMMTH_APR                        4
0150 #define WM8350_RTC_ALMMTH_MAY                        5
0151 #define WM8350_RTC_ALMMTH_JUN                        6
0152 #define WM8350_RTC_ALMMTH_JUL                        7
0153 #define WM8350_RTC_ALMMTH_AUG                        8
0154 #define WM8350_RTC_ALMMTH_SEP                        9
0155 #define WM8350_RTC_ALMMTH_OCT                       10
0156 #define WM8350_RTC_ALMMTH_NOV                       11
0157 #define WM8350_RTC_ALMMTH_DEC                       12
0158 #define WM8350_RTC_ALMMTH_JAN_BCD                 0x01
0159 #define WM8350_RTC_ALMMTH_FEB_BCD                 0x02
0160 #define WM8350_RTC_ALMMTH_MAR_BCD                 0x03
0161 #define WM8350_RTC_ALMMTH_APR_BCD                 0x04
0162 #define WM8350_RTC_ALMMTH_MAY_BCD                 0x05
0163 #define WM8350_RTC_ALMMTH_JUN_BCD                 0x06
0164 #define WM8350_RTC_ALMMTH_JUL_BCD                 0x07
0165 #define WM8350_RTC_ALMMTH_AUG_BCD                 0x08
0166 #define WM8350_RTC_ALMMTH_SEP_BCD                 0x09
0167 #define WM8350_RTC_ALMMTH_OCT_BCD                 0x10
0168 #define WM8350_RTC_ALMMTH_NOV_BCD                 0x11
0169 #define WM8350_RTC_ALMMTH_DEC_BCD                 0x12
0170 
0171 /*
0172  * R23 (0x17) - RTC Time Control
0173  */
0174 #define WM8350_RTC_BCD                          0x8000
0175 #define WM8350_RTC_BCD_MASK                     0x8000
0176 #define WM8350_RTC_BCD_SHIFT                        15
0177 #define WM8350_RTC_12HR                         0x4000
0178 #define WM8350_RTC_12HR_MASK                    0x4000
0179 #define WM8350_RTC_12HR_SHIFT                       14
0180 #define WM8350_RTC_DST                          0x2000
0181 #define WM8350_RTC_DST_MASK                     0x2000
0182 #define WM8350_RTC_DST_SHIFT                        13
0183 #define WM8350_RTC_SET                          0x0800
0184 #define WM8350_RTC_SET_MASK                     0x0800
0185 #define WM8350_RTC_SET_SHIFT                        11
0186 #define WM8350_RTC_STS                          0x0400
0187 #define WM8350_RTC_STS_MASK                     0x0400
0188 #define WM8350_RTC_STS_SHIFT                        10
0189 #define WM8350_RTC_ALMSET                       0x0200
0190 #define WM8350_RTC_ALMSET_MASK                  0x0200
0191 #define WM8350_RTC_ALMSET_SHIFT                      9
0192 #define WM8350_RTC_ALMSTS                       0x0100
0193 #define WM8350_RTC_ALMSTS_MASK                  0x0100
0194 #define WM8350_RTC_ALMSTS_SHIFT                      8
0195 #define WM8350_RTC_PINT                         0x0070
0196 #define WM8350_RTC_PINT_MASK                    0x0070
0197 #define WM8350_RTC_PINT_SHIFT                        4
0198 #define WM8350_RTC_DSW                          0x000F
0199 #define WM8350_RTC_DSW_MASK                     0x000F
0200 #define WM8350_RTC_DSW_SHIFT                         0
0201 
0202 /* Bit values for R23 (0x17) */
0203 #define WM8350_RTC_BCD_BINARY                        0
0204 #define WM8350_RTC_BCD_BCD                           1
0205 
0206 #define WM8350_RTC_12HR_24HR                         0
0207 #define WM8350_RTC_12HR_12HR                         1
0208 
0209 #define WM8350_RTC_DST_DISABLED                      0
0210 #define WM8350_RTC_DST_ENABLED                       1
0211 
0212 #define WM8350_RTC_SET_RUN                           0
0213 #define WM8350_RTC_SET_SET                           1
0214 
0215 #define WM8350_RTC_STS_RUNNING                       0
0216 #define WM8350_RTC_STS_STOPPED                       1
0217 
0218 #define WM8350_RTC_ALMSET_RUN                        0
0219 #define WM8350_RTC_ALMSET_SET                        1
0220 
0221 #define WM8350_RTC_ALMSTS_RUNNING                    0
0222 #define WM8350_RTC_ALMSTS_STOPPED                    1
0223 
0224 #define WM8350_RTC_PINT_DISABLED                     0
0225 #define WM8350_RTC_PINT_SECS                         1
0226 #define WM8350_RTC_PINT_MINS                         2
0227 #define WM8350_RTC_PINT_HRS                          3
0228 #define WM8350_RTC_PINT_DAYS                         4
0229 #define WM8350_RTC_PINT_MTHS                         5
0230 
0231 #define WM8350_RTC_DSW_DISABLED                      0
0232 #define WM8350_RTC_DSW_1HZ                           1
0233 #define WM8350_RTC_DSW_2HZ                           2
0234 #define WM8350_RTC_DSW_4HZ                           3
0235 #define WM8350_RTC_DSW_8HZ                           4
0236 #define WM8350_RTC_DSW_16HZ                          5
0237 #define WM8350_RTC_DSW_32HZ                          6
0238 #define WM8350_RTC_DSW_64HZ                          7
0239 #define WM8350_RTC_DSW_128HZ                         8
0240 #define WM8350_RTC_DSW_256HZ                         9
0241 #define WM8350_RTC_DSW_512HZ                        10
0242 #define WM8350_RTC_DSW_1024HZ                       11
0243 
0244 /*
0245  * R218 (0xDA) - RTC Tick Control
0246  */
0247 #define WM8350_RTC_TICKSTS                      0x4000
0248 #define WM8350_RTC_CLKSRC                       0x2000
0249 #define WM8350_RTC_TRIM_MASK                    0x03FF
0250 
0251 /*
0252  * RTC Interrupts.
0253  */
0254 #define WM8350_IRQ_RTC_PER          7
0255 #define WM8350_IRQ_RTC_SEC          8
0256 #define WM8350_IRQ_RTC_ALM          9
0257 
0258 struct wm8350_rtc {
0259     struct platform_device *pdev;
0260     struct rtc_device *rtc;
0261     int alarm_enabled;      /* used over suspend/resume */
0262     int update_enabled;
0263 };
0264 
0265 #endif