Thomas Gleixner | 2025cf9 | 2019-05-29 07:18:02 -0700 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0-only |
Chris Zhong | f69a7cf | 2014-09-03 21:51:44 +0800 | [diff] [blame] | 2 | /* |
Wadim Egorov | 2eedcbf | 2016-08-29 13:07:58 +0200 | [diff] [blame] | 3 | * MFD core driver for Rockchip RK808/RK818 |
Chris Zhong | f69a7cf | 2014-09-03 21:51:44 +0800 | [diff] [blame] | 4 | * |
| 5 | * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd |
| 6 | * |
| 7 | * Author: Chris Zhong <zyw@rock-chips.com> |
| 8 | * Author: Zhang Qing <zhangqing@rock-chips.com> |
| 9 | * |
Wadim Egorov | 2eedcbf | 2016-08-29 13:07:58 +0200 | [diff] [blame] | 10 | * Copyright (C) 2016 PHYTEC Messtechnik GmbH |
| 11 | * |
| 12 | * Author: Wadim Egorov <w.egorov@phytec.de> |
Chris Zhong | f69a7cf | 2014-09-03 21:51:44 +0800 | [diff] [blame] | 13 | */ |
| 14 | |
| 15 | #include <linux/i2c.h> |
| 16 | #include <linux/interrupt.h> |
| 17 | #include <linux/mfd/rk808.h> |
| 18 | #include <linux/mfd/core.h> |
| 19 | #include <linux/module.h> |
Wadim Egorov | 2eedcbf | 2016-08-29 13:07:58 +0200 | [diff] [blame] | 20 | #include <linux/of_device.h> |
Chris Zhong | f69a7cf | 2014-09-03 21:51:44 +0800 | [diff] [blame] | 21 | #include <linux/regmap.h> |
Peter Geis | 56f216d | 2022-02-08 14:40:23 -0500 | [diff] [blame] | 22 | #include <linux/reboot.h> |
Chris Zhong | f69a7cf | 2014-09-03 21:51:44 +0800 | [diff] [blame] | 23 | |
| 24 | struct rk808_reg_data { |
| 25 | int addr; |
| 26 | int mask; |
| 27 | int value; |
| 28 | }; |
| 29 | |
Doug Anderson | 2adb3b8 | 2014-09-09 16:06:04 -0700 | [diff] [blame] | 30 | static bool rk808_is_volatile_reg(struct device *dev, unsigned int reg) |
| 31 | { |
| 32 | /* |
| 33 | * Notes: |
| 34 | * - Technically the ROUND_30s bit makes RTC_CTRL_REG volatile, but |
| 35 | * we don't use that feature. It's better to cache. |
| 36 | * - It's unlikely we care that RK808_DEVCTRL_REG is volatile since |
| 37 | * bits are cleared in case when we shutoff anyway, but better safe. |
| 38 | */ |
| 39 | |
| 40 | switch (reg) { |
| 41 | case RK808_SECONDS_REG ... RK808_WEEKS_REG: |
| 42 | case RK808_RTC_STATUS_REG: |
| 43 | case RK808_VB_MON_REG: |
| 44 | case RK808_THERMAL_REG: |
| 45 | case RK808_DCDC_UV_STS_REG: |
| 46 | case RK808_LDO_UV_STS_REG: |
| 47 | case RK808_DCDC_PG_REG: |
| 48 | case RK808_LDO_PG_REG: |
| 49 | case RK808_DEVCTRL_REG: |
| 50 | case RK808_INT_STS_REG1: |
| 51 | case RK808_INT_STS_REG2: |
| 52 | return true; |
| 53 | } |
| 54 | |
| 55 | return false; |
| 56 | } |
| 57 | |
Tony Xie | 586c1b4 | 2019-06-21 06:32:54 -0400 | [diff] [blame] | 58 | static bool rk817_is_volatile_reg(struct device *dev, unsigned int reg) |
| 59 | { |
| 60 | /* |
| 61 | * Notes: |
| 62 | * - Technically the ROUND_30s bit makes RTC_CTRL_REG volatile, but |
| 63 | * we don't use that feature. It's better to cache. |
| 64 | */ |
| 65 | |
| 66 | switch (reg) { |
| 67 | case RK817_SECONDS_REG ... RK817_WEEKS_REG: |
| 68 | case RK817_RTC_STATUS_REG: |
Chris Morgan | 4a1c456 | 2021-05-19 15:37:51 -0500 | [diff] [blame] | 69 | case RK817_CODEC_DTOP_LPT_SRST: |
Tony Xie | 586c1b4 | 2019-06-21 06:32:54 -0400 | [diff] [blame] | 70 | case RK817_INT_STS_REG0: |
| 71 | case RK817_INT_STS_REG1: |
| 72 | case RK817_INT_STS_REG2: |
| 73 | case RK817_SYS_STS: |
| 74 | return true; |
| 75 | } |
| 76 | |
| 77 | return true; |
| 78 | } |
| 79 | |
Wadim Egorov | 2eedcbf | 2016-08-29 13:07:58 +0200 | [diff] [blame] | 80 | static const struct regmap_config rk818_regmap_config = { |
| 81 | .reg_bits = 8, |
| 82 | .val_bits = 8, |
| 83 | .max_register = RK818_USB_CTRL_REG, |
| 84 | .cache_type = REGCACHE_RBTREE, |
| 85 | .volatile_reg = rk808_is_volatile_reg, |
| 86 | }; |
| 87 | |
Elaine Zhang | 990f05f | 2017-08-21 03:28:38 +0200 | [diff] [blame] | 88 | static const struct regmap_config rk805_regmap_config = { |
| 89 | .reg_bits = 8, |
| 90 | .val_bits = 8, |
| 91 | .max_register = RK805_OFF_SOURCE_REG, |
| 92 | .cache_type = REGCACHE_RBTREE, |
| 93 | .volatile_reg = rk808_is_volatile_reg, |
| 94 | }; |
| 95 | |
Chris Zhong | f69a7cf | 2014-09-03 21:51:44 +0800 | [diff] [blame] | 96 | static const struct regmap_config rk808_regmap_config = { |
| 97 | .reg_bits = 8, |
| 98 | .val_bits = 8, |
| 99 | .max_register = RK808_IO_POL_REG, |
Doug Anderson | 2adb3b8 | 2014-09-09 16:06:04 -0700 | [diff] [blame] | 100 | .cache_type = REGCACHE_RBTREE, |
| 101 | .volatile_reg = rk808_is_volatile_reg, |
Chris Zhong | f69a7cf | 2014-09-03 21:51:44 +0800 | [diff] [blame] | 102 | }; |
| 103 | |
Tony Xie | 586c1b4 | 2019-06-21 06:32:54 -0400 | [diff] [blame] | 104 | static const struct regmap_config rk817_regmap_config = { |
| 105 | .reg_bits = 8, |
| 106 | .val_bits = 8, |
| 107 | .max_register = RK817_GPIO_INT_CFG, |
| 108 | .cache_type = REGCACHE_NONE, |
| 109 | .volatile_reg = rk817_is_volatile_reg, |
| 110 | }; |
| 111 | |
Rikard Falkeborn | c4a164f | 2020-09-22 21:26:59 +0200 | [diff] [blame] | 112 | static const struct resource rtc_resources[] = { |
Heiko Stuebner | eeb86ed | 2019-09-17 10:12:56 +0200 | [diff] [blame] | 113 | DEFINE_RES_IRQ(RK808_IRQ_RTC_ALARM), |
Chris Zhong | f69a7cf | 2014-09-03 21:51:44 +0800 | [diff] [blame] | 114 | }; |
| 115 | |
Rikard Falkeborn | c4a164f | 2020-09-22 21:26:59 +0200 | [diff] [blame] | 116 | static const struct resource rk817_rtc_resources[] = { |
Tony Xie | 586c1b4 | 2019-06-21 06:32:54 -0400 | [diff] [blame] | 117 | DEFINE_RES_IRQ(RK817_IRQ_RTC_ALARM), |
| 118 | }; |
| 119 | |
Rikard Falkeborn | c4a164f | 2020-09-22 21:26:59 +0200 | [diff] [blame] | 120 | static const struct resource rk805_key_resources[] = { |
Heiko Stuebner | bc85e4a | 2019-09-17 10:12:54 +0200 | [diff] [blame] | 121 | DEFINE_RES_IRQ(RK805_IRQ_PWRON_RISE), |
| 122 | DEFINE_RES_IRQ(RK805_IRQ_PWRON_FALL), |
Joseph Chen | f7c2239 | 2017-08-21 03:28:42 +0200 | [diff] [blame] | 123 | }; |
| 124 | |
Rikard Falkeborn | c4a164f | 2020-09-22 21:26:59 +0200 | [diff] [blame] | 125 | static const struct resource rk817_pwrkey_resources[] = { |
Tony Xie | 586c1b4 | 2019-06-21 06:32:54 -0400 | [diff] [blame] | 126 | DEFINE_RES_IRQ(RK817_IRQ_PWRON_RISE), |
| 127 | DEFINE_RES_IRQ(RK817_IRQ_PWRON_FALL), |
| 128 | }; |
| 129 | |
Elaine Zhang | 990f05f | 2017-08-21 03:28:38 +0200 | [diff] [blame] | 130 | static const struct mfd_cell rk805s[] = { |
| 131 | { .name = "rk808-clkout", }, |
| 132 | { .name = "rk808-regulator", }, |
Joseph Chen | 8d249b6 | 2017-08-21 03:28:41 +0200 | [diff] [blame] | 133 | { .name = "rk805-pinctrl", }, |
Elaine Zhang | 990f05f | 2017-08-21 03:28:38 +0200 | [diff] [blame] | 134 | { |
| 135 | .name = "rk808-rtc", |
| 136 | .num_resources = ARRAY_SIZE(rtc_resources), |
| 137 | .resources = &rtc_resources[0], |
| 138 | }, |
Joseph Chen | f7c2239 | 2017-08-21 03:28:42 +0200 | [diff] [blame] | 139 | { .name = "rk805-pwrkey", |
| 140 | .num_resources = ARRAY_SIZE(rk805_key_resources), |
| 141 | .resources = &rk805_key_resources[0], |
| 142 | }, |
Elaine Zhang | 990f05f | 2017-08-21 03:28:38 +0200 | [diff] [blame] | 143 | }; |
| 144 | |
Chris Zhong | f69a7cf | 2014-09-03 21:51:44 +0800 | [diff] [blame] | 145 | static const struct mfd_cell rk808s[] = { |
| 146 | { .name = "rk808-clkout", }, |
| 147 | { .name = "rk808-regulator", }, |
| 148 | { |
| 149 | .name = "rk808-rtc", |
| 150 | .num_resources = ARRAY_SIZE(rtc_resources), |
Wadim Egorov | 2eedcbf | 2016-08-29 13:07:58 +0200 | [diff] [blame] | 151 | .resources = rtc_resources, |
Chris Zhong | f69a7cf | 2014-09-03 21:51:44 +0800 | [diff] [blame] | 152 | }, |
| 153 | }; |
| 154 | |
Tony Xie | 586c1b4 | 2019-06-21 06:32:54 -0400 | [diff] [blame] | 155 | static const struct mfd_cell rk817s[] = { |
| 156 | { .name = "rk808-clkout",}, |
| 157 | { .name = "rk808-regulator",}, |
| 158 | { |
Heiko Stuebner | bc85e4a | 2019-09-17 10:12:54 +0200 | [diff] [blame] | 159 | .name = "rk805-pwrkey", |
Tony Xie | 586c1b4 | 2019-06-21 06:32:54 -0400 | [diff] [blame] | 160 | .num_resources = ARRAY_SIZE(rk817_pwrkey_resources), |
| 161 | .resources = &rk817_pwrkey_resources[0], |
| 162 | }, |
| 163 | { |
| 164 | .name = "rk808-rtc", |
| 165 | .num_resources = ARRAY_SIZE(rk817_rtc_resources), |
| 166 | .resources = &rk817_rtc_resources[0], |
| 167 | }, |
Chris Morgan | 4a1c456 | 2021-05-19 15:37:51 -0500 | [diff] [blame] | 168 | { .name = "rk817-codec",}, |
Tony Xie | 586c1b4 | 2019-06-21 06:32:54 -0400 | [diff] [blame] | 169 | }; |
| 170 | |
Wadim Egorov | 2eedcbf | 2016-08-29 13:07:58 +0200 | [diff] [blame] | 171 | static const struct mfd_cell rk818s[] = { |
| 172 | { .name = "rk808-clkout", }, |
| 173 | { .name = "rk808-regulator", }, |
| 174 | { |
| 175 | .name = "rk808-rtc", |
| 176 | .num_resources = ARRAY_SIZE(rtc_resources), |
| 177 | .resources = rtc_resources, |
| 178 | }, |
| 179 | }; |
| 180 | |
Elaine Zhang | 990f05f | 2017-08-21 03:28:38 +0200 | [diff] [blame] | 181 | static const struct rk808_reg_data rk805_pre_init_reg[] = { |
| 182 | {RK805_BUCK1_CONFIG_REG, RK805_BUCK1_2_ILMAX_MASK, |
| 183 | RK805_BUCK1_2_ILMAX_4000MA}, |
| 184 | {RK805_BUCK2_CONFIG_REG, RK805_BUCK1_2_ILMAX_MASK, |
| 185 | RK805_BUCK1_2_ILMAX_4000MA}, |
| 186 | {RK805_BUCK3_CONFIG_REG, RK805_BUCK3_4_ILMAX_MASK, |
| 187 | RK805_BUCK3_ILMAX_3000MA}, |
| 188 | {RK805_BUCK4_CONFIG_REG, RK805_BUCK3_4_ILMAX_MASK, |
| 189 | RK805_BUCK4_ILMAX_3500MA}, |
| 190 | {RK805_BUCK4_CONFIG_REG, BUCK_ILMIN_MASK, BUCK_ILMIN_400MA}, |
Elaine Zhang | 990f05f | 2017-08-21 03:28:38 +0200 | [diff] [blame] | 191 | {RK805_THERMAL_REG, TEMP_HOTDIE_MSK, TEMP115C}, |
| 192 | }; |
| 193 | |
Wadim Egorov | 2eedcbf | 2016-08-29 13:07:58 +0200 | [diff] [blame] | 194 | static const struct rk808_reg_data rk808_pre_init_reg[] = { |
Chris Zhong | f69a7cf | 2014-09-03 21:51:44 +0800 | [diff] [blame] | 195 | { RK808_BUCK3_CONFIG_REG, BUCK_ILMIN_MASK, BUCK_ILMIN_150MA }, |
| 196 | { RK808_BUCK4_CONFIG_REG, BUCK_ILMIN_MASK, BUCK_ILMIN_200MA }, |
| 197 | { RK808_BOOST_CONFIG_REG, BOOST_ILMIN_MASK, BOOST_ILMIN_100MA }, |
| 198 | { RK808_BUCK1_CONFIG_REG, BUCK1_RATE_MASK, BUCK_ILMIN_200MA }, |
| 199 | { RK808_BUCK2_CONFIG_REG, BUCK2_RATE_MASK, BUCK_ILMIN_200MA }, |
Chris Zhong | e19f742 | 2015-02-28 18:09:06 +0800 | [diff] [blame] | 200 | { RK808_DCDC_UV_ACT_REG, BUCK_UV_ACT_MASK, BUCK_UV_ACT_DISABLE}, |
Chris Zhong | f69a7cf | 2014-09-03 21:51:44 +0800 | [diff] [blame] | 201 | { RK808_VB_MON_REG, MASK_ALL, VB_LO_ACT | |
| 202 | VB_LO_SEL_3500MV }, |
| 203 | }; |
| 204 | |
Tony Xie | 586c1b4 | 2019-06-21 06:32:54 -0400 | [diff] [blame] | 205 | static const struct rk808_reg_data rk817_pre_init_reg[] = { |
| 206 | {RK817_RTC_CTRL_REG, RTC_STOP, RTC_STOP}, |
Chris Morgan | 4a1c456 | 2021-05-19 15:37:51 -0500 | [diff] [blame] | 207 | /* Codec specific registers */ |
| 208 | { RK817_CODEC_DTOP_VUCTL, MASK_ALL, 0x03 }, |
| 209 | { RK817_CODEC_DTOP_VUCTIME, MASK_ALL, 0x00 }, |
| 210 | { RK817_CODEC_DTOP_LPT_SRST, MASK_ALL, 0x00 }, |
| 211 | { RK817_CODEC_DTOP_DIGEN_CLKE, MASK_ALL, 0x00 }, |
| 212 | /* from vendor driver, CODEC_AREF_RTCFG0 not defined in data sheet */ |
| 213 | { RK817_CODEC_AREF_RTCFG0, MASK_ALL, 0x00 }, |
| 214 | { RK817_CODEC_AREF_RTCFG1, MASK_ALL, 0x06 }, |
| 215 | { RK817_CODEC_AADC_CFG0, MASK_ALL, 0xc8 }, |
| 216 | /* from vendor driver, CODEC_AADC_CFG1 not defined in data sheet */ |
| 217 | { RK817_CODEC_AADC_CFG1, MASK_ALL, 0x00 }, |
| 218 | { RK817_CODEC_DADC_VOLL, MASK_ALL, 0x00 }, |
| 219 | { RK817_CODEC_DADC_VOLR, MASK_ALL, 0x00 }, |
| 220 | { RK817_CODEC_DADC_SR_ACL0, MASK_ALL, 0x00 }, |
| 221 | { RK817_CODEC_DADC_ALC1, MASK_ALL, 0x00 }, |
| 222 | { RK817_CODEC_DADC_ALC2, MASK_ALL, 0x00 }, |
| 223 | { RK817_CODEC_DADC_NG, MASK_ALL, 0x00 }, |
| 224 | { RK817_CODEC_DADC_HPF, MASK_ALL, 0x00 }, |
| 225 | { RK817_CODEC_DADC_RVOLL, MASK_ALL, 0xff }, |
| 226 | { RK817_CODEC_DADC_RVOLR, MASK_ALL, 0xff }, |
| 227 | { RK817_CODEC_AMIC_CFG0, MASK_ALL, 0x70 }, |
| 228 | { RK817_CODEC_AMIC_CFG1, MASK_ALL, 0x00 }, |
| 229 | { RK817_CODEC_DMIC_PGA_GAIN, MASK_ALL, 0x66 }, |
| 230 | { RK817_CODEC_DMIC_LMT1, MASK_ALL, 0x00 }, |
| 231 | { RK817_CODEC_DMIC_LMT2, MASK_ALL, 0x00 }, |
| 232 | { RK817_CODEC_DMIC_NG1, MASK_ALL, 0x00 }, |
| 233 | { RK817_CODEC_DMIC_NG2, MASK_ALL, 0x00 }, |
| 234 | /* from vendor driver, CODEC_ADAC_CFG0 not defined in data sheet */ |
| 235 | { RK817_CODEC_ADAC_CFG0, MASK_ALL, 0x00 }, |
| 236 | { RK817_CODEC_ADAC_CFG1, MASK_ALL, 0x07 }, |
| 237 | { RK817_CODEC_DDAC_POPD_DACST, MASK_ALL, 0x82 }, |
| 238 | { RK817_CODEC_DDAC_VOLL, MASK_ALL, 0x00 }, |
| 239 | { RK817_CODEC_DDAC_VOLR, MASK_ALL, 0x00 }, |
| 240 | { RK817_CODEC_DDAC_SR_LMT0, MASK_ALL, 0x00 }, |
| 241 | { RK817_CODEC_DDAC_LMT1, MASK_ALL, 0x00 }, |
| 242 | { RK817_CODEC_DDAC_LMT2, MASK_ALL, 0x00 }, |
| 243 | { RK817_CODEC_DDAC_MUTE_MIXCTL, MASK_ALL, 0xa0 }, |
| 244 | { RK817_CODEC_DDAC_RVOLL, MASK_ALL, 0xff }, |
| 245 | { RK817_CODEC_DADC_RVOLR, MASK_ALL, 0xff }, |
| 246 | { RK817_CODEC_AMIC_CFG0, MASK_ALL, 0x70 }, |
| 247 | { RK817_CODEC_AMIC_CFG1, MASK_ALL, 0x00 }, |
| 248 | { RK817_CODEC_DMIC_PGA_GAIN, MASK_ALL, 0x66 }, |
| 249 | { RK817_CODEC_DMIC_LMT1, MASK_ALL, 0x00 }, |
| 250 | { RK817_CODEC_DMIC_LMT2, MASK_ALL, 0x00 }, |
| 251 | { RK817_CODEC_DMIC_NG1, MASK_ALL, 0x00 }, |
| 252 | { RK817_CODEC_DMIC_NG2, MASK_ALL, 0x00 }, |
| 253 | /* from vendor driver, CODEC_ADAC_CFG0 not defined in data sheet */ |
| 254 | { RK817_CODEC_ADAC_CFG0, MASK_ALL, 0x00 }, |
| 255 | { RK817_CODEC_ADAC_CFG1, MASK_ALL, 0x07 }, |
| 256 | { RK817_CODEC_DDAC_POPD_DACST, MASK_ALL, 0x82 }, |
| 257 | { RK817_CODEC_DDAC_VOLL, MASK_ALL, 0x00 }, |
| 258 | { RK817_CODEC_DDAC_VOLR, MASK_ALL, 0x00 }, |
| 259 | { RK817_CODEC_DDAC_SR_LMT0, MASK_ALL, 0x00 }, |
| 260 | { RK817_CODEC_DDAC_LMT1, MASK_ALL, 0x00 }, |
| 261 | { RK817_CODEC_DDAC_LMT2, MASK_ALL, 0x00 }, |
| 262 | { RK817_CODEC_DDAC_MUTE_MIXCTL, MASK_ALL, 0xa0 }, |
| 263 | { RK817_CODEC_DDAC_RVOLL, MASK_ALL, 0xff }, |
| 264 | { RK817_CODEC_DDAC_RVOLR, MASK_ALL, 0xff }, |
| 265 | { RK817_CODEC_AHP_ANTI0, MASK_ALL, 0x00 }, |
| 266 | { RK817_CODEC_AHP_ANTI1, MASK_ALL, 0x00 }, |
| 267 | { RK817_CODEC_AHP_CFG0, MASK_ALL, 0xe0 }, |
| 268 | { RK817_CODEC_AHP_CFG1, MASK_ALL, 0x1f }, |
| 269 | { RK817_CODEC_AHP_CP, MASK_ALL, 0x09 }, |
| 270 | { RK817_CODEC_ACLASSD_CFG1, MASK_ALL, 0x69 }, |
| 271 | { RK817_CODEC_ACLASSD_CFG2, MASK_ALL, 0x44 }, |
| 272 | { RK817_CODEC_APLL_CFG0, MASK_ALL, 0x04 }, |
| 273 | { RK817_CODEC_APLL_CFG1, MASK_ALL, 0x00 }, |
| 274 | { RK817_CODEC_APLL_CFG2, MASK_ALL, 0x30 }, |
| 275 | { RK817_CODEC_APLL_CFG3, MASK_ALL, 0x19 }, |
| 276 | { RK817_CODEC_APLL_CFG4, MASK_ALL, 0x65 }, |
| 277 | { RK817_CODEC_APLL_CFG5, MASK_ALL, 0x01 }, |
| 278 | { RK817_CODEC_DI2S_CKM, MASK_ALL, 0x01 }, |
| 279 | { RK817_CODEC_DI2S_RSD, MASK_ALL, 0x00 }, |
| 280 | { RK817_CODEC_DI2S_RXCR1, MASK_ALL, 0x00 }, |
| 281 | { RK817_CODEC_DI2S_RXCR2, MASK_ALL, 0x17 }, |
| 282 | { RK817_CODEC_DI2S_RXCMD_TSD, MASK_ALL, 0x00 }, |
| 283 | { RK817_CODEC_DI2S_TXCR1, MASK_ALL, 0x00 }, |
| 284 | { RK817_CODEC_DI2S_TXCR2, MASK_ALL, 0x17 }, |
| 285 | { RK817_CODEC_DI2S_TXCR3_TXCMD, MASK_ALL, 0x00 }, |
Heiko Stuebner | dbd16ef | 2019-09-17 10:12:55 +0200 | [diff] [blame] | 286 | {RK817_GPIO_INT_CFG, RK817_INT_POL_MSK, RK817_INT_POL_L}, |
Tony Xie | 586c1b4 | 2019-06-21 06:32:54 -0400 | [diff] [blame] | 287 | {RK817_SYS_CFG(1), RK817_HOTDIE_TEMP_MSK | RK817_TSD_TEMP_MSK, |
| 288 | RK817_HOTDIE_105 | RK817_TSD_140}, |
| 289 | }; |
| 290 | |
Wadim Egorov | 2eedcbf | 2016-08-29 13:07:58 +0200 | [diff] [blame] | 291 | static const struct rk808_reg_data rk818_pre_init_reg[] = { |
| 292 | /* improve efficiency */ |
| 293 | { RK818_BUCK2_CONFIG_REG, BUCK2_RATE_MASK, BUCK_ILMIN_250MA }, |
| 294 | { RK818_BUCK4_CONFIG_REG, BUCK_ILMIN_MASK, BUCK_ILMIN_250MA }, |
| 295 | { RK818_BOOST_CONFIG_REG, BOOST_ILMIN_MASK, BOOST_ILMIN_100MA }, |
| 296 | { RK818_USB_CTRL_REG, RK818_USB_ILIM_SEL_MASK, |
| 297 | RK818_USB_ILMIN_2000MA }, |
| 298 | /* close charger when usb lower then 3.4V */ |
| 299 | { RK818_USB_CTRL_REG, RK818_USB_CHG_SD_VSEL_MASK, |
| 300 | (0x7 << 4) }, |
| 301 | /* no action when vref */ |
| 302 | { RK818_H5V_EN_REG, BIT(1), RK818_REF_RDY_CTRL }, |
| 303 | /* enable HDMI 5V */ |
| 304 | { RK818_H5V_EN_REG, BIT(0), RK818_H5V_EN }, |
| 305 | { RK808_VB_MON_REG, MASK_ALL, VB_LO_ACT | |
| 306 | VB_LO_SEL_3500MV }, |
| 307 | }; |
| 308 | |
Elaine Zhang | 990f05f | 2017-08-21 03:28:38 +0200 | [diff] [blame] | 309 | static const struct regmap_irq rk805_irqs[] = { |
| 310 | [RK805_IRQ_PWRON_RISE] = { |
| 311 | .mask = RK805_IRQ_PWRON_RISE_MSK, |
| 312 | .reg_offset = 0, |
| 313 | }, |
| 314 | [RK805_IRQ_VB_LOW] = { |
| 315 | .mask = RK805_IRQ_VB_LOW_MSK, |
| 316 | .reg_offset = 0, |
| 317 | }, |
| 318 | [RK805_IRQ_PWRON] = { |
| 319 | .mask = RK805_IRQ_PWRON_MSK, |
| 320 | .reg_offset = 0, |
| 321 | }, |
| 322 | [RK805_IRQ_PWRON_LP] = { |
| 323 | .mask = RK805_IRQ_PWRON_LP_MSK, |
| 324 | .reg_offset = 0, |
| 325 | }, |
| 326 | [RK805_IRQ_HOTDIE] = { |
| 327 | .mask = RK805_IRQ_HOTDIE_MSK, |
| 328 | .reg_offset = 0, |
| 329 | }, |
| 330 | [RK805_IRQ_RTC_ALARM] = { |
| 331 | .mask = RK805_IRQ_RTC_ALARM_MSK, |
| 332 | .reg_offset = 0, |
| 333 | }, |
| 334 | [RK805_IRQ_RTC_PERIOD] = { |
| 335 | .mask = RK805_IRQ_RTC_PERIOD_MSK, |
| 336 | .reg_offset = 0, |
| 337 | }, |
| 338 | [RK805_IRQ_PWRON_FALL] = { |
| 339 | .mask = RK805_IRQ_PWRON_FALL_MSK, |
| 340 | .reg_offset = 0, |
| 341 | }, |
| 342 | }; |
| 343 | |
Chris Zhong | f69a7cf | 2014-09-03 21:51:44 +0800 | [diff] [blame] | 344 | static const struct regmap_irq rk808_irqs[] = { |
| 345 | /* INT_STS */ |
| 346 | [RK808_IRQ_VOUT_LO] = { |
| 347 | .mask = RK808_IRQ_VOUT_LO_MSK, |
| 348 | .reg_offset = 0, |
| 349 | }, |
| 350 | [RK808_IRQ_VB_LO] = { |
| 351 | .mask = RK808_IRQ_VB_LO_MSK, |
| 352 | .reg_offset = 0, |
| 353 | }, |
| 354 | [RK808_IRQ_PWRON] = { |
| 355 | .mask = RK808_IRQ_PWRON_MSK, |
| 356 | .reg_offset = 0, |
| 357 | }, |
| 358 | [RK808_IRQ_PWRON_LP] = { |
| 359 | .mask = RK808_IRQ_PWRON_LP_MSK, |
| 360 | .reg_offset = 0, |
| 361 | }, |
| 362 | [RK808_IRQ_HOTDIE] = { |
| 363 | .mask = RK808_IRQ_HOTDIE_MSK, |
| 364 | .reg_offset = 0, |
| 365 | }, |
| 366 | [RK808_IRQ_RTC_ALARM] = { |
| 367 | .mask = RK808_IRQ_RTC_ALARM_MSK, |
| 368 | .reg_offset = 0, |
| 369 | }, |
| 370 | [RK808_IRQ_RTC_PERIOD] = { |
| 371 | .mask = RK808_IRQ_RTC_PERIOD_MSK, |
| 372 | .reg_offset = 0, |
| 373 | }, |
| 374 | |
| 375 | /* INT_STS2 */ |
| 376 | [RK808_IRQ_PLUG_IN_INT] = { |
| 377 | .mask = RK808_IRQ_PLUG_IN_INT_MSK, |
| 378 | .reg_offset = 1, |
| 379 | }, |
| 380 | [RK808_IRQ_PLUG_OUT_INT] = { |
| 381 | .mask = RK808_IRQ_PLUG_OUT_INT_MSK, |
| 382 | .reg_offset = 1, |
| 383 | }, |
| 384 | }; |
| 385 | |
Wadim Egorov | 2eedcbf | 2016-08-29 13:07:58 +0200 | [diff] [blame] | 386 | static const struct regmap_irq rk818_irqs[] = { |
| 387 | /* INT_STS */ |
| 388 | [RK818_IRQ_VOUT_LO] = { |
| 389 | .mask = RK818_IRQ_VOUT_LO_MSK, |
| 390 | .reg_offset = 0, |
| 391 | }, |
| 392 | [RK818_IRQ_VB_LO] = { |
| 393 | .mask = RK818_IRQ_VB_LO_MSK, |
| 394 | .reg_offset = 0, |
| 395 | }, |
| 396 | [RK818_IRQ_PWRON] = { |
| 397 | .mask = RK818_IRQ_PWRON_MSK, |
| 398 | .reg_offset = 0, |
| 399 | }, |
| 400 | [RK818_IRQ_PWRON_LP] = { |
| 401 | .mask = RK818_IRQ_PWRON_LP_MSK, |
| 402 | .reg_offset = 0, |
| 403 | }, |
| 404 | [RK818_IRQ_HOTDIE] = { |
| 405 | .mask = RK818_IRQ_HOTDIE_MSK, |
| 406 | .reg_offset = 0, |
| 407 | }, |
| 408 | [RK818_IRQ_RTC_ALARM] = { |
| 409 | .mask = RK818_IRQ_RTC_ALARM_MSK, |
| 410 | .reg_offset = 0, |
| 411 | }, |
| 412 | [RK818_IRQ_RTC_PERIOD] = { |
| 413 | .mask = RK818_IRQ_RTC_PERIOD_MSK, |
| 414 | .reg_offset = 0, |
| 415 | }, |
| 416 | [RK818_IRQ_USB_OV] = { |
| 417 | .mask = RK818_IRQ_USB_OV_MSK, |
| 418 | .reg_offset = 0, |
| 419 | }, |
| 420 | |
| 421 | /* INT_STS2 */ |
| 422 | [RK818_IRQ_PLUG_IN] = { |
| 423 | .mask = RK818_IRQ_PLUG_IN_MSK, |
| 424 | .reg_offset = 1, |
| 425 | }, |
| 426 | [RK818_IRQ_PLUG_OUT] = { |
| 427 | .mask = RK818_IRQ_PLUG_OUT_MSK, |
| 428 | .reg_offset = 1, |
| 429 | }, |
| 430 | [RK818_IRQ_CHG_OK] = { |
| 431 | .mask = RK818_IRQ_CHG_OK_MSK, |
| 432 | .reg_offset = 1, |
| 433 | }, |
| 434 | [RK818_IRQ_CHG_TE] = { |
| 435 | .mask = RK818_IRQ_CHG_TE_MSK, |
| 436 | .reg_offset = 1, |
| 437 | }, |
| 438 | [RK818_IRQ_CHG_TS1] = { |
| 439 | .mask = RK818_IRQ_CHG_TS1_MSK, |
| 440 | .reg_offset = 1, |
| 441 | }, |
| 442 | [RK818_IRQ_TS2] = { |
| 443 | .mask = RK818_IRQ_TS2_MSK, |
| 444 | .reg_offset = 1, |
| 445 | }, |
| 446 | [RK818_IRQ_CHG_CVTLIM] = { |
| 447 | .mask = RK818_IRQ_CHG_CVTLIM_MSK, |
| 448 | .reg_offset = 1, |
| 449 | }, |
| 450 | [RK818_IRQ_DISCHG_ILIM] = { |
| 451 | .mask = RK818_IRQ_DISCHG_ILIM_MSK, |
| 452 | .reg_offset = 1, |
| 453 | }, |
| 454 | }; |
| 455 | |
Tony Xie | 586c1b4 | 2019-06-21 06:32:54 -0400 | [diff] [blame] | 456 | static const struct regmap_irq rk817_irqs[RK817_IRQ_END] = { |
| 457 | REGMAP_IRQ_REG_LINE(0, 8), |
| 458 | REGMAP_IRQ_REG_LINE(1, 8), |
| 459 | REGMAP_IRQ_REG_LINE(2, 8), |
| 460 | REGMAP_IRQ_REG_LINE(3, 8), |
| 461 | REGMAP_IRQ_REG_LINE(4, 8), |
| 462 | REGMAP_IRQ_REG_LINE(5, 8), |
| 463 | REGMAP_IRQ_REG_LINE(6, 8), |
| 464 | REGMAP_IRQ_REG_LINE(7, 8), |
| 465 | REGMAP_IRQ_REG_LINE(8, 8), |
| 466 | REGMAP_IRQ_REG_LINE(9, 8), |
| 467 | REGMAP_IRQ_REG_LINE(10, 8), |
| 468 | REGMAP_IRQ_REG_LINE(11, 8), |
| 469 | REGMAP_IRQ_REG_LINE(12, 8), |
| 470 | REGMAP_IRQ_REG_LINE(13, 8), |
| 471 | REGMAP_IRQ_REG_LINE(14, 8), |
| 472 | REGMAP_IRQ_REG_LINE(15, 8), |
| 473 | REGMAP_IRQ_REG_LINE(16, 8), |
| 474 | REGMAP_IRQ_REG_LINE(17, 8), |
| 475 | REGMAP_IRQ_REG_LINE(18, 8), |
| 476 | REGMAP_IRQ_REG_LINE(19, 8), |
| 477 | REGMAP_IRQ_REG_LINE(20, 8), |
| 478 | REGMAP_IRQ_REG_LINE(21, 8), |
| 479 | REGMAP_IRQ_REG_LINE(22, 8), |
| 480 | REGMAP_IRQ_REG_LINE(23, 8) |
| 481 | }; |
| 482 | |
Elaine Zhang | 990f05f | 2017-08-21 03:28:38 +0200 | [diff] [blame] | 483 | static struct regmap_irq_chip rk805_irq_chip = { |
| 484 | .name = "rk805", |
| 485 | .irqs = rk805_irqs, |
| 486 | .num_irqs = ARRAY_SIZE(rk805_irqs), |
| 487 | .num_regs = 1, |
| 488 | .status_base = RK805_INT_STS_REG, |
| 489 | .mask_base = RK805_INT_STS_MSK_REG, |
| 490 | .ack_base = RK805_INT_STS_REG, |
| 491 | .init_ack_masked = true, |
| 492 | }; |
| 493 | |
Bhumika Goyal | 24e34b9 | 2017-01-25 00:55:24 +0530 | [diff] [blame] | 494 | static const struct regmap_irq_chip rk808_irq_chip = { |
Chris Zhong | f69a7cf | 2014-09-03 21:51:44 +0800 | [diff] [blame] | 495 | .name = "rk808", |
| 496 | .irqs = rk808_irqs, |
| 497 | .num_irqs = ARRAY_SIZE(rk808_irqs), |
| 498 | .num_regs = 2, |
| 499 | .irq_reg_stride = 2, |
| 500 | .status_base = RK808_INT_STS_REG1, |
| 501 | .mask_base = RK808_INT_STS_MSK_REG1, |
| 502 | .ack_base = RK808_INT_STS_REG1, |
| 503 | .init_ack_masked = true, |
| 504 | }; |
| 505 | |
Tony Xie | 586c1b4 | 2019-06-21 06:32:54 -0400 | [diff] [blame] | 506 | static struct regmap_irq_chip rk817_irq_chip = { |
| 507 | .name = "rk817", |
| 508 | .irqs = rk817_irqs, |
| 509 | .num_irqs = ARRAY_SIZE(rk817_irqs), |
| 510 | .num_regs = 3, |
| 511 | .irq_reg_stride = 2, |
| 512 | .status_base = RK817_INT_STS_REG0, |
| 513 | .mask_base = RK817_INT_STS_MSK_REG0, |
| 514 | .ack_base = RK817_INT_STS_REG0, |
| 515 | .init_ack_masked = true, |
| 516 | }; |
| 517 | |
Bhumika Goyal | 24e34b9 | 2017-01-25 00:55:24 +0530 | [diff] [blame] | 518 | static const struct regmap_irq_chip rk818_irq_chip = { |
Wadim Egorov | 2eedcbf | 2016-08-29 13:07:58 +0200 | [diff] [blame] | 519 | .name = "rk818", |
| 520 | .irqs = rk818_irqs, |
| 521 | .num_irqs = ARRAY_SIZE(rk818_irqs), |
| 522 | .num_regs = 2, |
| 523 | .irq_reg_stride = 2, |
| 524 | .status_base = RK818_INT_STS_REG1, |
| 525 | .mask_base = RK818_INT_STS_MSK_REG1, |
| 526 | .ack_base = RK818_INT_STS_REG1, |
| 527 | .init_ack_masked = true, |
| 528 | }; |
| 529 | |
Chris Zhong | f69a7cf | 2014-09-03 21:51:44 +0800 | [diff] [blame] | 530 | static struct i2c_client *rk808_i2c_client; |
Elaine Zhang | 990f05f | 2017-08-21 03:28:38 +0200 | [diff] [blame] | 531 | |
Robin Murphy | 7a52cbc | 2020-01-12 01:55:03 +0000 | [diff] [blame] | 532 | static void rk808_pm_power_off(void) |
Chris Zhong | f69a7cf | 2014-09-03 21:51:44 +0800 | [diff] [blame] | 533 | { |
| 534 | int ret; |
Robin Murphy | 7a52cbc | 2020-01-12 01:55:03 +0000 | [diff] [blame] | 535 | unsigned int reg, bit; |
Chris Zhong | f69a7cf | 2014-09-03 21:51:44 +0800 | [diff] [blame] | 536 | struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client); |
| 537 | |
Robin Murphy | 7a52cbc | 2020-01-12 01:55:03 +0000 | [diff] [blame] | 538 | switch (rk808->variant) { |
| 539 | case RK805_ID: |
| 540 | reg = RK805_DEV_CTRL_REG; |
| 541 | bit = DEV_OFF; |
| 542 | break; |
| 543 | case RK808_ID: |
| 544 | reg = RK808_DEVCTRL_REG, |
| 545 | bit = DEV_OFF_RST; |
| 546 | break; |
Peter Geis | 56f216d | 2022-02-08 14:40:23 -0500 | [diff] [blame] | 547 | case RK809_ID: |
Ondrej Jirman | 4d94b98 | 2021-08-29 04:51:53 +0200 | [diff] [blame] | 548 | case RK817_ID: |
| 549 | reg = RK817_SYS_CFG(3); |
| 550 | bit = DEV_OFF; |
| 551 | break; |
Robin Murphy | 7a52cbc | 2020-01-12 01:55:03 +0000 | [diff] [blame] | 552 | case RK818_ID: |
| 553 | reg = RK818_DEVCTRL_REG; |
| 554 | bit = DEV_OFF; |
| 555 | break; |
| 556 | default: |
Chris Zhong | f69a7cf | 2014-09-03 21:51:44 +0800 | [diff] [blame] | 557 | return; |
Robin Murphy | 7a52cbc | 2020-01-12 01:55:03 +0000 | [diff] [blame] | 558 | } |
| 559 | ret = regmap_update_bits(rk808->regmap, reg, bit, bit); |
Jianhong Chen | b2e2c85 | 2016-10-17 17:03:10 +0800 | [diff] [blame] | 560 | if (ret) |
Stefan Mavrodiev | ac195d9 | 2019-06-07 15:42:26 +0300 | [diff] [blame] | 561 | dev_err(&rk808_i2c_client->dev, "Failed to shutdown device!\n"); |
Jianhong Chen | b2e2c85 | 2016-10-17 17:03:10 +0800 | [diff] [blame] | 562 | } |
| 563 | |
Peter Geis | 56f216d | 2022-02-08 14:40:23 -0500 | [diff] [blame] | 564 | static int rk808_restart_notify(struct notifier_block *this, unsigned long mode, void *cmd) |
| 565 | { |
| 566 | struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client); |
| 567 | unsigned int reg, bit; |
| 568 | int ret; |
| 569 | |
| 570 | switch (rk808->variant) { |
| 571 | case RK809_ID: |
| 572 | case RK817_ID: |
| 573 | reg = RK817_SYS_CFG(3); |
| 574 | bit = DEV_RST; |
| 575 | break; |
| 576 | |
| 577 | default: |
| 578 | return NOTIFY_DONE; |
| 579 | } |
| 580 | ret = regmap_update_bits(rk808->regmap, reg, bit, bit); |
| 581 | if (ret) |
| 582 | dev_err(&rk808_i2c_client->dev, "Failed to restart device!\n"); |
| 583 | |
| 584 | return NOTIFY_DONE; |
| 585 | } |
| 586 | |
| 587 | static struct notifier_block rk808_restart_handler = { |
| 588 | .notifier_call = rk808_restart_notify, |
| 589 | .priority = 192, |
| 590 | }; |
| 591 | |
Robin Murphy | 90df3a8 | 2020-01-12 01:55:02 +0000 | [diff] [blame] | 592 | static void rk8xx_shutdown(struct i2c_client *client) |
Tony Xie | 586c1b4 | 2019-06-21 06:32:54 -0400 | [diff] [blame] | 593 | { |
Robin Murphy | 90df3a8 | 2020-01-12 01:55:02 +0000 | [diff] [blame] | 594 | struct rk808 *rk808 = i2c_get_clientdata(client); |
Tony Xie | 586c1b4 | 2019-06-21 06:32:54 -0400 | [diff] [blame] | 595 | int ret; |
| 596 | |
Robin Murphy | 90df3a8 | 2020-01-12 01:55:02 +0000 | [diff] [blame] | 597 | switch (rk808->variant) { |
Robin Murphy | 4267976 | 2020-01-12 01:55:04 +0000 | [diff] [blame] | 598 | case RK805_ID: |
| 599 | ret = regmap_update_bits(rk808->regmap, |
| 600 | RK805_GPIO_IO_POL_REG, |
| 601 | SLP_SD_MSK, |
| 602 | SHUTDOWN_FUN); |
| 603 | break; |
Robin Murphy | 90df3a8 | 2020-01-12 01:55:02 +0000 | [diff] [blame] | 604 | case RK809_ID: |
| 605 | case RK817_ID: |
Tony Xie | 586c1b4 | 2019-06-21 06:32:54 -0400 | [diff] [blame] | 606 | ret = regmap_update_bits(rk808->regmap, |
| 607 | RK817_SYS_CFG(3), |
| 608 | RK817_SLPPIN_FUNC_MSK, |
| 609 | SLPPIN_DN_FUN); |
Robin Murphy | 90df3a8 | 2020-01-12 01:55:02 +0000 | [diff] [blame] | 610 | break; |
| 611 | default: |
| 612 | return; |
Tony Xie | 586c1b4 | 2019-06-21 06:32:54 -0400 | [diff] [blame] | 613 | } |
Robin Murphy | 90df3a8 | 2020-01-12 01:55:02 +0000 | [diff] [blame] | 614 | if (ret) |
| 615 | dev_warn(&client->dev, |
| 616 | "Cannot switch to power down function\n"); |
Tony Xie | 586c1b4 | 2019-06-21 06:32:54 -0400 | [diff] [blame] | 617 | } |
| 618 | |
Wadim Egorov | 2eedcbf | 2016-08-29 13:07:58 +0200 | [diff] [blame] | 619 | static const struct of_device_id rk808_of_match[] = { |
Elaine Zhang | 990f05f | 2017-08-21 03:28:38 +0200 | [diff] [blame] | 620 | { .compatible = "rockchip,rk805" }, |
Wadim Egorov | 2eedcbf | 2016-08-29 13:07:58 +0200 | [diff] [blame] | 621 | { .compatible = "rockchip,rk808" }, |
Tony Xie | 586c1b4 | 2019-06-21 06:32:54 -0400 | [diff] [blame] | 622 | { .compatible = "rockchip,rk809" }, |
| 623 | { .compatible = "rockchip,rk817" }, |
Wadim Egorov | 2eedcbf | 2016-08-29 13:07:58 +0200 | [diff] [blame] | 624 | { .compatible = "rockchip,rk818" }, |
| 625 | { }, |
| 626 | }; |
| 627 | MODULE_DEVICE_TABLE(of, rk808_of_match); |
| 628 | |
Chris Zhong | f69a7cf | 2014-09-03 21:51:44 +0800 | [diff] [blame] | 629 | static int rk808_probe(struct i2c_client *client, |
| 630 | const struct i2c_device_id *id) |
| 631 | { |
| 632 | struct device_node *np = client->dev.of_node; |
| 633 | struct rk808 *rk808; |
Wadim Egorov | 2eedcbf | 2016-08-29 13:07:58 +0200 | [diff] [blame] | 634 | const struct rk808_reg_data *pre_init_reg; |
| 635 | const struct mfd_cell *cells; |
| 636 | int nr_pre_init_regs; |
| 637 | int nr_cells; |
Soeren Moch | d8f083a | 2020-01-12 01:55:00 +0000 | [diff] [blame] | 638 | int msb, lsb; |
Tony Xie | 586c1b4 | 2019-06-21 06:32:54 -0400 | [diff] [blame] | 639 | unsigned char pmic_id_msb, pmic_id_lsb; |
Chris Zhong | f69a7cf | 2014-09-03 21:51:44 +0800 | [diff] [blame] | 640 | int ret; |
| 641 | int i; |
| 642 | |
Wadim Egorov | 2eedcbf | 2016-08-29 13:07:58 +0200 | [diff] [blame] | 643 | rk808 = devm_kzalloc(&client->dev, sizeof(*rk808), GFP_KERNEL); |
| 644 | if (!rk808) |
| 645 | return -ENOMEM; |
| 646 | |
Tony Xie | 586c1b4 | 2019-06-21 06:32:54 -0400 | [diff] [blame] | 647 | if (of_device_is_compatible(np, "rockchip,rk817") || |
| 648 | of_device_is_compatible(np, "rockchip,rk809")) { |
| 649 | pmic_id_msb = RK817_ID_MSB; |
| 650 | pmic_id_lsb = RK817_ID_LSB; |
| 651 | } else { |
| 652 | pmic_id_msb = RK808_ID_MSB; |
| 653 | pmic_id_lsb = RK808_ID_LSB; |
| 654 | } |
| 655 | |
Elaine Zhang | 9d6105e | 2017-08-21 03:28:34 +0200 | [diff] [blame] | 656 | /* Read chip variant */ |
Tony Xie | 586c1b4 | 2019-06-21 06:32:54 -0400 | [diff] [blame] | 657 | msb = i2c_smbus_read_byte_data(client, pmic_id_msb); |
Elaine Zhang | 9d6105e | 2017-08-21 03:28:34 +0200 | [diff] [blame] | 658 | if (msb < 0) { |
| 659 | dev_err(&client->dev, "failed to read the chip id at 0x%x\n", |
Wadim Egorov | 2eedcbf | 2016-08-29 13:07:58 +0200 | [diff] [blame] | 660 | RK808_ID_MSB); |
Elaine Zhang | 9d6105e | 2017-08-21 03:28:34 +0200 | [diff] [blame] | 661 | return msb; |
Wadim Egorov | 2eedcbf | 2016-08-29 13:07:58 +0200 | [diff] [blame] | 662 | } |
| 663 | |
Tony Xie | 586c1b4 | 2019-06-21 06:32:54 -0400 | [diff] [blame] | 664 | lsb = i2c_smbus_read_byte_data(client, pmic_id_lsb); |
Elaine Zhang | 9d6105e | 2017-08-21 03:28:34 +0200 | [diff] [blame] | 665 | if (lsb < 0) { |
| 666 | dev_err(&client->dev, "failed to read the chip id at 0x%x\n", |
| 667 | RK808_ID_LSB); |
| 668 | return lsb; |
| 669 | } |
| 670 | |
| 671 | rk808->variant = ((msb << 8) | lsb) & RK8XX_ID_MSK; |
| 672 | dev_info(&client->dev, "chip id: 0x%x\n", (unsigned int)rk808->variant); |
Wadim Egorov | 2eedcbf | 2016-08-29 13:07:58 +0200 | [diff] [blame] | 673 | |
| 674 | switch (rk808->variant) { |
Elaine Zhang | 990f05f | 2017-08-21 03:28:38 +0200 | [diff] [blame] | 675 | case RK805_ID: |
| 676 | rk808->regmap_cfg = &rk805_regmap_config; |
| 677 | rk808->regmap_irq_chip = &rk805_irq_chip; |
| 678 | pre_init_reg = rk805_pre_init_reg; |
| 679 | nr_pre_init_regs = ARRAY_SIZE(rk805_pre_init_reg); |
| 680 | cells = rk805s; |
| 681 | nr_cells = ARRAY_SIZE(rk805s); |
Elaine Zhang | 990f05f | 2017-08-21 03:28:38 +0200 | [diff] [blame] | 682 | break; |
Wadim Egorov | 2eedcbf | 2016-08-29 13:07:58 +0200 | [diff] [blame] | 683 | case RK808_ID: |
| 684 | rk808->regmap_cfg = &rk808_regmap_config; |
| 685 | rk808->regmap_irq_chip = &rk808_irq_chip; |
| 686 | pre_init_reg = rk808_pre_init_reg; |
| 687 | nr_pre_init_regs = ARRAY_SIZE(rk808_pre_init_reg); |
| 688 | cells = rk808s; |
| 689 | nr_cells = ARRAY_SIZE(rk808s); |
| 690 | break; |
| 691 | case RK818_ID: |
| 692 | rk808->regmap_cfg = &rk818_regmap_config; |
| 693 | rk808->regmap_irq_chip = &rk818_irq_chip; |
| 694 | pre_init_reg = rk818_pre_init_reg; |
| 695 | nr_pre_init_regs = ARRAY_SIZE(rk818_pre_init_reg); |
| 696 | cells = rk818s; |
| 697 | nr_cells = ARRAY_SIZE(rk818s); |
| 698 | break; |
Tony Xie | 586c1b4 | 2019-06-21 06:32:54 -0400 | [diff] [blame] | 699 | case RK809_ID: |
| 700 | case RK817_ID: |
| 701 | rk808->regmap_cfg = &rk817_regmap_config; |
| 702 | rk808->regmap_irq_chip = &rk817_irq_chip; |
| 703 | pre_init_reg = rk817_pre_init_reg; |
| 704 | nr_pre_init_regs = ARRAY_SIZE(rk817_pre_init_reg); |
| 705 | cells = rk817s; |
| 706 | nr_cells = ARRAY_SIZE(rk817s); |
Wadim Egorov | 2eedcbf | 2016-08-29 13:07:58 +0200 | [diff] [blame] | 707 | break; |
| 708 | default: |
| 709 | dev_err(&client->dev, "Unsupported RK8XX ID %lu\n", |
| 710 | rk808->variant); |
| 711 | return -EINVAL; |
| 712 | } |
| 713 | |
| 714 | rk808->i2c = client; |
| 715 | i2c_set_clientdata(client, rk808); |
| 716 | |
| 717 | rk808->regmap = devm_regmap_init_i2c(client, rk808->regmap_cfg); |
| 718 | if (IS_ERR(rk808->regmap)) { |
| 719 | dev_err(&client->dev, "regmap initialization failed\n"); |
| 720 | return PTR_ERR(rk808->regmap); |
| 721 | } |
| 722 | |
Chris Zhong | f69a7cf | 2014-09-03 21:51:44 +0800 | [diff] [blame] | 723 | if (!client->irq) { |
| 724 | dev_err(&client->dev, "No interrupt support, no core IRQ\n"); |
| 725 | return -EINVAL; |
| 726 | } |
| 727 | |
Chris Zhong | f69a7cf | 2014-09-03 21:51:44 +0800 | [diff] [blame] | 728 | ret = regmap_add_irq_chip(rk808->regmap, client->irq, |
| 729 | IRQF_ONESHOT, -1, |
Wadim Egorov | 2eedcbf | 2016-08-29 13:07:58 +0200 | [diff] [blame] | 730 | rk808->regmap_irq_chip, &rk808->irq_data); |
Chris Zhong | f69a7cf | 2014-09-03 21:51:44 +0800 | [diff] [blame] | 731 | if (ret) { |
| 732 | dev_err(&client->dev, "Failed to add irq_chip %d\n", ret); |
| 733 | return ret; |
| 734 | } |
| 735 | |
Wadim Egorov | 2eedcbf | 2016-08-29 13:07:58 +0200 | [diff] [blame] | 736 | for (i = 0; i < nr_pre_init_regs; i++) { |
| 737 | ret = regmap_update_bits(rk808->regmap, |
| 738 | pre_init_reg[i].addr, |
| 739 | pre_init_reg[i].mask, |
| 740 | pre_init_reg[i].value); |
| 741 | if (ret) { |
| 742 | dev_err(&client->dev, |
| 743 | "0x%x write err\n", |
| 744 | pre_init_reg[i].addr); |
| 745 | return ret; |
| 746 | } |
| 747 | } |
Chris Zhong | f69a7cf | 2014-09-03 21:51:44 +0800 | [diff] [blame] | 748 | |
Wadim Egorov | 2eedcbf | 2016-08-29 13:07:58 +0200 | [diff] [blame] | 749 | ret = devm_mfd_add_devices(&client->dev, PLATFORM_DEVID_NONE, |
| 750 | cells, nr_cells, NULL, 0, |
| 751 | regmap_irq_get_domain(rk808->irq_data)); |
Chris Zhong | f69a7cf | 2014-09-03 21:51:44 +0800 | [diff] [blame] | 752 | if (ret) { |
| 753 | dev_err(&client->dev, "failed to add MFD devices %d\n", ret); |
| 754 | goto err_irq; |
| 755 | } |
| 756 | |
Soeren Moch | d8f083a | 2020-01-12 01:55:00 +0000 | [diff] [blame] | 757 | if (of_property_read_bool(np, "rockchip,system-power-controller")) { |
Chris Zhong | f69a7cf | 2014-09-03 21:51:44 +0800 | [diff] [blame] | 758 | rk808_i2c_client = client; |
Robin Murphy | 7a52cbc | 2020-01-12 01:55:03 +0000 | [diff] [blame] | 759 | pm_power_off = rk808_pm_power_off; |
Peter Geis | 56f216d | 2022-02-08 14:40:23 -0500 | [diff] [blame] | 760 | |
| 761 | switch (rk808->variant) { |
| 762 | case RK809_ID: |
| 763 | case RK817_ID: |
| 764 | ret = register_restart_handler(&rk808_restart_handler); |
| 765 | if (ret) |
| 766 | dev_warn(&client->dev, "failed to register rst handler, %d\n", ret); |
| 767 | break; |
| 768 | default: |
| 769 | dev_dbg(&client->dev, "pmic controlled board reset not supported\n"); |
| 770 | break; |
| 771 | } |
Chris Zhong | f69a7cf | 2014-09-03 21:51:44 +0800 | [diff] [blame] | 772 | } |
| 773 | |
| 774 | return 0; |
| 775 | |
| 776 | err_irq: |
| 777 | regmap_del_irq_chip(client->irq, rk808->irq_data); |
| 778 | return ret; |
| 779 | } |
| 780 | |
| 781 | static int rk808_remove(struct i2c_client *client) |
| 782 | { |
| 783 | struct rk808 *rk808 = i2c_get_clientdata(client); |
| 784 | |
| 785 | regmap_del_irq_chip(client->irq, rk808->irq_data); |
Stefan Mavrodiev | 7630499 | 2019-06-07 15:42:25 +0300 | [diff] [blame] | 786 | |
| 787 | /** |
| 788 | * pm_power_off may points to a function from another module. |
| 789 | * Check if the pointer is set by us and only then overwrite it. |
| 790 | */ |
Robin Murphy | 7a52cbc | 2020-01-12 01:55:03 +0000 | [diff] [blame] | 791 | if (pm_power_off == rk808_pm_power_off) |
Stefan Mavrodiev | 7630499 | 2019-06-07 15:42:25 +0300 | [diff] [blame] | 792 | pm_power_off = NULL; |
Chris Zhong | f69a7cf | 2014-09-03 21:51:44 +0800 | [diff] [blame] | 793 | |
Peter Geis | 56f216d | 2022-02-08 14:40:23 -0500 | [diff] [blame] | 794 | unregister_restart_handler(&rk808_restart_handler); |
| 795 | |
Chris Zhong | f69a7cf | 2014-09-03 21:51:44 +0800 | [diff] [blame] | 796 | return 0; |
| 797 | } |
| 798 | |
Arnd Bergmann | 5752bc4 | 2019-07-08 14:53:02 +0200 | [diff] [blame] | 799 | static int __maybe_unused rk8xx_suspend(struct device *dev) |
Tony Xie | 586c1b4 | 2019-06-21 06:32:54 -0400 | [diff] [blame] | 800 | { |
Robin Murphy | 08e8c0d | 2020-01-12 01:55:01 +0000 | [diff] [blame] | 801 | struct rk808 *rk808 = i2c_get_clientdata(to_i2c_client(dev)); |
Tony Xie | 586c1b4 | 2019-06-21 06:32:54 -0400 | [diff] [blame] | 802 | int ret = 0; |
| 803 | |
| 804 | switch (rk808->variant) { |
Robin Murphy | 4267976 | 2020-01-12 01:55:04 +0000 | [diff] [blame] | 805 | case RK805_ID: |
| 806 | ret = regmap_update_bits(rk808->regmap, |
| 807 | RK805_GPIO_IO_POL_REG, |
| 808 | SLP_SD_MSK, |
| 809 | SLEEP_FUN); |
| 810 | break; |
Tony Xie | 586c1b4 | 2019-06-21 06:32:54 -0400 | [diff] [blame] | 811 | case RK809_ID: |
| 812 | case RK817_ID: |
| 813 | ret = regmap_update_bits(rk808->regmap, |
| 814 | RK817_SYS_CFG(3), |
| 815 | RK817_SLPPIN_FUNC_MSK, |
| 816 | SLPPIN_SLP_FUN); |
| 817 | break; |
| 818 | default: |
| 819 | break; |
| 820 | } |
| 821 | |
| 822 | return ret; |
| 823 | } |
| 824 | |
Arnd Bergmann | 5752bc4 | 2019-07-08 14:53:02 +0200 | [diff] [blame] | 825 | static int __maybe_unused rk8xx_resume(struct device *dev) |
Tony Xie | 586c1b4 | 2019-06-21 06:32:54 -0400 | [diff] [blame] | 826 | { |
Robin Murphy | 08e8c0d | 2020-01-12 01:55:01 +0000 | [diff] [blame] | 827 | struct rk808 *rk808 = i2c_get_clientdata(to_i2c_client(dev)); |
Tony Xie | 586c1b4 | 2019-06-21 06:32:54 -0400 | [diff] [blame] | 828 | int ret = 0; |
| 829 | |
| 830 | switch (rk808->variant) { |
| 831 | case RK809_ID: |
| 832 | case RK817_ID: |
| 833 | ret = regmap_update_bits(rk808->regmap, |
| 834 | RK817_SYS_CFG(3), |
| 835 | RK817_SLPPIN_FUNC_MSK, |
| 836 | SLPPIN_NULL_FUN); |
| 837 | break; |
| 838 | default: |
| 839 | break; |
| 840 | } |
| 841 | |
| 842 | return ret; |
| 843 | } |
Lee Jones | 4d82fa6 | 2019-08-27 07:39:50 +0100 | [diff] [blame] | 844 | static SIMPLE_DEV_PM_OPS(rk8xx_pm_ops, rk8xx_suspend, rk8xx_resume); |
Tony Xie | 586c1b4 | 2019-06-21 06:32:54 -0400 | [diff] [blame] | 845 | |
Chris Zhong | f69a7cf | 2014-09-03 21:51:44 +0800 | [diff] [blame] | 846 | static struct i2c_driver rk808_i2c_driver = { |
| 847 | .driver = { |
| 848 | .name = "rk808", |
| 849 | .of_match_table = rk808_of_match, |
Tony Xie | 586c1b4 | 2019-06-21 06:32:54 -0400 | [diff] [blame] | 850 | .pm = &rk8xx_pm_ops, |
Chris Zhong | f69a7cf | 2014-09-03 21:51:44 +0800 | [diff] [blame] | 851 | }, |
| 852 | .probe = rk808_probe, |
| 853 | .remove = rk808_remove, |
Robin Murphy | 90df3a8 | 2020-01-12 01:55:02 +0000 | [diff] [blame] | 854 | .shutdown = rk8xx_shutdown, |
Chris Zhong | f69a7cf | 2014-09-03 21:51:44 +0800 | [diff] [blame] | 855 | }; |
| 856 | |
| 857 | module_i2c_driver(rk808_i2c_driver); |
| 858 | |
| 859 | MODULE_LICENSE("GPL"); |
| 860 | MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>"); |
| 861 | MODULE_AUTHOR("Zhang Qing <zhangqing@rock-chips.com>"); |
Wadim Egorov | 2eedcbf | 2016-08-29 13:07:58 +0200 | [diff] [blame] | 862 | MODULE_AUTHOR("Wadim Egorov <w.egorov@phytec.de>"); |
| 863 | MODULE_DESCRIPTION("RK808/RK818 PMIC driver"); |