drivers/mfd/mt6360-core.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (c) 2020 MediaTek Inc.
   4  *
   5  * Author: Gene Chen <gene_chen@richtek.com>
   6  */
   7
   8 #include <linux/i2c.h>
   9 #include <linux/init.h>
  10 #include <linux/interrupt.h>
  11 #include <linux/kernel.h>
  12 #include <linux/mfd/core.h>
  13 #include <linux/module.h>
  14 #include <linux/of_irq.h>
  15 #include <linux/of_platform.h>
  16
  17 #include <linux/mfd/mt6360.h>
  18
  19 /* reg 0 -> 0 ~ 7 */
  20 #define MT6360_CHG_TREG_EVT             (4)
  21 #define MT6360_CHG_AICR_EVT             (5)
  22 #define MT6360_CHG_MIVR_EVT             (6)
  23 #define MT6360_PWR_RDY_EVT              (7)
  24 /* REG 1 -> 8 ~ 15 */
  25 #define MT6360_CHG_BATSYSUV_EVT         (9)
  26 #define MT6360_FLED_CHG_VINOVP_EVT      (11)
  27 #define MT6360_CHG_VSYSUV_EVT           (12)
  28 #define MT6360_CHG_VSYSOV_EVT           (13)
  29 #define MT6360_CHG_VBATOV_EVT           (14)
  30 #define MT6360_CHG_VBUSOV_EVT           (15)
  31 /* REG 2 -> 16 ~ 23 */
  32 /* REG 3 -> 24 ~ 31 */
  33 #define MT6360_WD_PMU_DET               (25)
  34 #define MT6360_WD_PMU_DONE              (26)
  35 #define MT6360_CHG_TMRI                 (27)
  36 #define MT6360_CHG_ADPBADI              (29)
  37 #define MT6360_CHG_RVPI                 (30)
  38 #define MT6360_OTPI                     (31)
  39 /* REG 4 -> 32 ~ 39 */
  40 #define MT6360_CHG_AICCMEASL            (32)
  41 #define MT6360_CHGDET_DONEI             (34)
  42 #define MT6360_WDTMRI                   (35)
  43 #define MT6360_SSFINISHI                (36)
  44 #define MT6360_CHG_RECHGI               (37)
  45 #define MT6360_CHG_TERMI                (38)
  46 #define MT6360_CHG_IEOCI                (39)
  47 /* REG 5 -> 40 ~ 47 */
  48 #define MT6360_PUMPX_DONEI              (40)
  49 #define MT6360_BAT_OVP_ADC_EVT          (41)
  50 #define MT6360_TYPEC_OTP_EVT            (42)
  51 #define MT6360_ADC_WAKEUP_EVT           (43)
  52 #define MT6360_ADC_DONEI                (44)
  53 #define MT6360_BST_BATUVI               (45)
  54 #define MT6360_BST_VBUSOVI              (46)
  55 #define MT6360_BST_OLPI                 (47)
  56 /* REG 6 -> 48 ~ 55 */
  57 #define MT6360_ATTACH_I                 (48)
  58 #define MT6360_DETACH_I                 (49)
  59 #define MT6360_QC30_STPDONE             (51)
  60 #define MT6360_QC_VBUSDET_DONE          (52)
  61 #define MT6360_HVDCP_DET                (53)
  62 #define MT6360_CHGDETI                  (54)
  63 #define MT6360_DCDTI                    (55)
  64 /* REG 7 -> 56 ~ 63 */
  65 #define MT6360_FOD_DONE_EVT             (56)
  66 #define MT6360_FOD_OV_EVT               (57)
  67 #define MT6360_CHRDET_UVP_EVT           (58)
  68 #define MT6360_CHRDET_OVP_EVT           (59)
  69 #define MT6360_CHRDET_EXT_EVT           (60)
  70 #define MT6360_FOD_LR_EVT               (61)
  71 #define MT6360_FOD_HR_EVT               (62)
  72 #define MT6360_FOD_DISCHG_FAIL_EVT      (63)
  73 /* REG 8 -> 64 ~ 71 */
  74 #define MT6360_USBID_EVT                (64)
  75 #define MT6360_APWDTRST_EVT             (65)
  76 #define MT6360_EN_EVT                   (66)
  77 #define MT6360_QONB_RST_EVT             (67)
  78 #define MT6360_MRSTB_EVT                (68)
  79 #define MT6360_OTP_EVT                  (69)
  80 #define MT6360_VDDAOV_EVT               (70)
  81 #define MT6360_SYSUV_EVT                (71)
  82 /* REG 9 -> 72 ~ 79 */
  83 #define MT6360_FLED_STRBPIN_EVT         (72)
  84 #define MT6360_FLED_TORPIN_EVT          (73)
  85 #define MT6360_FLED_TX_EVT              (74)
  86 #define MT6360_FLED_LVF_EVT             (75)
  87 #define MT6360_FLED2_SHORT_EVT          (78)
  88 #define MT6360_FLED1_SHORT_EVT          (79)
  89 /* REG 10 -> 80 ~ 87 */
  90 #define MT6360_FLED2_STRB_EVT           (80)
  91 #define MT6360_FLED1_STRB_EVT           (81)
  92 #define MT6360_FLED2_STRB_TO_EVT        (82)
  93 #define MT6360_FLED1_STRB_TO_EVT        (83)
  94 #define MT6360_FLED2_TOR_EVT            (84)
  95 #define MT6360_FLED1_TOR_EVT            (85)
  96 /* REG 11 -> 88 ~ 95 */
  97 /* REG 12 -> 96 ~ 103 */
  98 #define MT6360_BUCK1_PGB_EVT            (96)
  99 #define MT6360_BUCK1_OC_EVT             (100)
 100 #define MT6360_BUCK1_OV_EVT             (101)
 101 #define MT6360_BUCK1_UV_EVT             (102)
 102 /* REG 13 -> 104 ~ 111 */
 103 #define MT6360_BUCK2_PGB_EVT            (104)
 104 #define MT6360_BUCK2_OC_EVT             (108)
 105 #define MT6360_BUCK2_OV_EVT             (109)
 106 #define MT6360_BUCK2_UV_EVT             (110)
 107 /* REG 14 -> 112 ~ 119 */
 108 #define MT6360_LDO1_OC_EVT              (113)
 109 #define MT6360_LDO2_OC_EVT              (114)
 110 #define MT6360_LDO3_OC_EVT              (115)
 111 #define MT6360_LDO5_OC_EVT              (117)
 112 #define MT6360_LDO6_OC_EVT              (118)
 113 #define MT6360_LDO7_OC_EVT              (119)
 114 /* REG 15 -> 120 ~ 127 */
 115 #define MT6360_LDO1_PGB_EVT             (121)
 116 #define MT6360_LDO2_PGB_EVT             (122)
 117 #define MT6360_LDO3_PGB_EVT             (123)
 118 #define MT6360_LDO5_PGB_EVT             (125)
 119 #define MT6360_LDO6_PGB_EVT             (126)
 120 #define MT6360_LDO7_PGB_EVT             (127)
 121
 122 static const struct regmap_irq mt6360_pmu_irqs[] =  {
 123         REGMAP_IRQ_REG_LINE(MT6360_CHG_TREG_EVT, 8),
 124         REGMAP_IRQ_REG_LINE(MT6360_CHG_AICR_EVT, 8),
 125         REGMAP_IRQ_REG_LINE(MT6360_CHG_MIVR_EVT, 8),
 126         REGMAP_IRQ_REG_LINE(MT6360_PWR_RDY_EVT, 8),
 127         REGMAP_IRQ_REG_LINE(MT6360_CHG_BATSYSUV_EVT, 8),
 128         REGMAP_IRQ_REG_LINE(MT6360_FLED_CHG_VINOVP_EVT, 8),
 129         REGMAP_IRQ_REG_LINE(MT6360_CHG_VSYSUV_EVT, 8),
 130         REGMAP_IRQ_REG_LINE(MT6360_CHG_VSYSOV_EVT, 8),
 131         REGMAP_IRQ_REG_LINE(MT6360_CHG_VBATOV_EVT, 8),
 132         REGMAP_IRQ_REG_LINE(MT6360_CHG_VBUSOV_EVT, 8),
 133         REGMAP_IRQ_REG_LINE(MT6360_WD_PMU_DET, 8),
 134         REGMAP_IRQ_REG_LINE(MT6360_WD_PMU_DONE, 8),
 135         REGMAP_IRQ_REG_LINE(MT6360_CHG_TMRI, 8),
 136         REGMAP_IRQ_REG_LINE(MT6360_CHG_ADPBADI, 8),
 137         REGMAP_IRQ_REG_LINE(MT6360_CHG_RVPI, 8),
 138         REGMAP_IRQ_REG_LINE(MT6360_OTPI, 8),
 139         REGMAP_IRQ_REG_LINE(MT6360_CHG_AICCMEASL, 8),
 140         REGMAP_IRQ_REG_LINE(MT6360_CHGDET_DONEI, 8),
 141         REGMAP_IRQ_REG_LINE(MT6360_WDTMRI, 8),
 142         REGMAP_IRQ_REG_LINE(MT6360_SSFINISHI, 8),
 143         REGMAP_IRQ_REG_LINE(MT6360_CHG_RECHGI, 8),
 144         REGMAP_IRQ_REG_LINE(MT6360_CHG_TERMI, 8),
 145         REGMAP_IRQ_REG_LINE(MT6360_CHG_IEOCI, 8),
 146         REGMAP_IRQ_REG_LINE(MT6360_PUMPX_DONEI, 8),
 147         REGMAP_IRQ_REG_LINE(MT6360_BAT_OVP_ADC_EVT, 8),
 148         REGMAP_IRQ_REG_LINE(MT6360_TYPEC_OTP_EVT, 8),
 149         REGMAP_IRQ_REG_LINE(MT6360_ADC_WAKEUP_EVT, 8),
 150         REGMAP_IRQ_REG_LINE(MT6360_ADC_DONEI, 8),
 151         REGMAP_IRQ_REG_LINE(MT6360_BST_BATUVI, 8),
 152         REGMAP_IRQ_REG_LINE(MT6360_BST_VBUSOVI, 8),
 153         REGMAP_IRQ_REG_LINE(MT6360_BST_OLPI, 8),
 154         REGMAP_IRQ_REG_LINE(MT6360_ATTACH_I, 8),
 155         REGMAP_IRQ_REG_LINE(MT6360_DETACH_I, 8),
 156         REGMAP_IRQ_REG_LINE(MT6360_QC30_STPDONE, 8),
 157         REGMAP_IRQ_REG_LINE(MT6360_QC_VBUSDET_DONE, 8),
 158         REGMAP_IRQ_REG_LINE(MT6360_HVDCP_DET, 8),
 159         REGMAP_IRQ_REG_LINE(MT6360_CHGDETI, 8),
 160         REGMAP_IRQ_REG_LINE(MT6360_DCDTI, 8),
 161         REGMAP_IRQ_REG_LINE(MT6360_FOD_DONE_EVT, 8),
 162         REGMAP_IRQ_REG_LINE(MT6360_FOD_OV_EVT, 8),
 163         REGMAP_IRQ_REG_LINE(MT6360_CHRDET_UVP_EVT, 8),
 164         REGMAP_IRQ_REG_LINE(MT6360_CHRDET_OVP_EVT, 8),
 165         REGMAP_IRQ_REG_LINE(MT6360_CHRDET_EXT_EVT, 8),
 166         REGMAP_IRQ_REG_LINE(MT6360_FOD_LR_EVT, 8),
 167         REGMAP_IRQ_REG_LINE(MT6360_FOD_HR_EVT, 8),
 168         REGMAP_IRQ_REG_LINE(MT6360_FOD_DISCHG_FAIL_EVT, 8),
 169         REGMAP_IRQ_REG_LINE(MT6360_USBID_EVT, 8),
 170         REGMAP_IRQ_REG_LINE(MT6360_APWDTRST_EVT, 8),
 171         REGMAP_IRQ_REG_LINE(MT6360_EN_EVT, 8),
 172         REGMAP_IRQ_REG_LINE(MT6360_QONB_RST_EVT, 8),
 173         REGMAP_IRQ_REG_LINE(MT6360_MRSTB_EVT, 8),
 174         REGMAP_IRQ_REG_LINE(MT6360_OTP_EVT, 8),
 175         REGMAP_IRQ_REG_LINE(MT6360_VDDAOV_EVT, 8),
 176         REGMAP_IRQ_REG_LINE(MT6360_SYSUV_EVT, 8),
 177         REGMAP_IRQ_REG_LINE(MT6360_FLED_STRBPIN_EVT, 8),
 178         REGMAP_IRQ_REG_LINE(MT6360_FLED_TORPIN_EVT, 8),
 179         REGMAP_IRQ_REG_LINE(MT6360_FLED_TX_EVT, 8),
 180         REGMAP_IRQ_REG_LINE(MT6360_FLED_LVF_EVT, 8),
 181         REGMAP_IRQ_REG_LINE(MT6360_FLED2_SHORT_EVT, 8),
 182         REGMAP_IRQ_REG_LINE(MT6360_FLED1_SHORT_EVT, 8),
 183         REGMAP_IRQ_REG_LINE(MT6360_FLED2_STRB_EVT, 8),
 184         REGMAP_IRQ_REG_LINE(MT6360_FLED1_STRB_EVT, 8),
 185         REGMAP_IRQ_REG_LINE(MT6360_FLED2_STRB_TO_EVT, 8),
 186         REGMAP_IRQ_REG_LINE(MT6360_FLED1_STRB_TO_EVT, 8),
 187         REGMAP_IRQ_REG_LINE(MT6360_FLED2_TOR_EVT, 8),
 188         REGMAP_IRQ_REG_LINE(MT6360_FLED1_TOR_EVT, 8),
 189         REGMAP_IRQ_REG_LINE(MT6360_BUCK1_PGB_EVT, 8),
 190         REGMAP_IRQ_REG_LINE(MT6360_BUCK1_OC_EVT, 8),
 191         REGMAP_IRQ_REG_LINE(MT6360_BUCK1_OV_EVT, 8),
 192         REGMAP_IRQ_REG_LINE(MT6360_BUCK1_UV_EVT, 8),
 193         REGMAP_IRQ_REG_LINE(MT6360_BUCK2_PGB_EVT, 8),
 194         REGMAP_IRQ_REG_LINE(MT6360_BUCK2_OC_EVT, 8),
 195         REGMAP_IRQ_REG_LINE(MT6360_BUCK2_OV_EVT, 8),
 196         REGMAP_IRQ_REG_LINE(MT6360_BUCK2_UV_EVT, 8),
 197         REGMAP_IRQ_REG_LINE(MT6360_LDO1_OC_EVT, 8),
 198         REGMAP_IRQ_REG_LINE(MT6360_LDO2_OC_EVT, 8),
 199         REGMAP_IRQ_REG_LINE(MT6360_LDO3_OC_EVT, 8),
 200         REGMAP_IRQ_REG_LINE(MT6360_LDO5_OC_EVT, 8),
 201         REGMAP_IRQ_REG_LINE(MT6360_LDO6_OC_EVT, 8),
 202         REGMAP_IRQ_REG_LINE(MT6360_LDO7_OC_EVT, 8),
 203         REGMAP_IRQ_REG_LINE(MT6360_LDO1_PGB_EVT, 8),
 204         REGMAP_IRQ_REG_LINE(MT6360_LDO2_PGB_EVT, 8),
 205         REGMAP_IRQ_REG_LINE(MT6360_LDO3_PGB_EVT, 8),
 206         REGMAP_IRQ_REG_LINE(MT6360_LDO5_PGB_EVT, 8),
 207         REGMAP_IRQ_REG_LINE(MT6360_LDO6_PGB_EVT, 8),
 208         REGMAP_IRQ_REG_LINE(MT6360_LDO7_PGB_EVT, 8),
 209 };
 210
 211 static int mt6360_pmu_handle_post_irq(void *irq_drv_data)
 212 {
 213         struct mt6360_pmu_data *mpd = irq_drv_data;
 214
 215         return regmap_update_bits(mpd->regmap,
 216                 MT6360_PMU_IRQ_SET, MT6360_IRQ_RETRIG, MT6360_IRQ_RETRIG);
 217 }
 218
 219 static struct regmap_irq_chip mt6360_pmu_irq_chip = {
 220         .irqs = mt6360_pmu_irqs,
 221         .num_irqs = ARRAY_SIZE(mt6360_pmu_irqs),
 222         .num_regs = MT6360_PMU_IRQ_REGNUM,
 223         .mask_base = MT6360_PMU_CHG_MASK1,
 224         .status_base = MT6360_PMU_CHG_IRQ1,
 225         .ack_base = MT6360_PMU_CHG_IRQ1,
 226         .init_ack_masked = true,
 227         .use_ack = true,
 228         .handle_post_irq = mt6360_pmu_handle_post_irq,
 229 };
 230
 231 static const struct regmap_config mt6360_pmu_regmap_config = {
 232         .reg_bits = 8,
 233         .val_bits = 8,
 234         .max_register = MT6360_PMU_MAXREG,
 235 };
 236
 237 static const struct resource mt6360_adc_resources[] = {
 238         DEFINE_RES_IRQ_NAMED(MT6360_ADC_DONEI, "adc_donei"),
 239 };
 240
 241 static const struct resource mt6360_chg_resources[] = {
 242         DEFINE_RES_IRQ_NAMED(MT6360_CHG_TREG_EVT, "chg_treg_evt"),
 243         DEFINE_RES_IRQ_NAMED(MT6360_PWR_RDY_EVT, "pwr_rdy_evt"),
 244         DEFINE_RES_IRQ_NAMED(MT6360_CHG_BATSYSUV_EVT, "chg_batsysuv_evt"),
 245         DEFINE_RES_IRQ_NAMED(MT6360_CHG_VSYSUV_EVT, "chg_vsysuv_evt"),
 246         DEFINE_RES_IRQ_NAMED(MT6360_CHG_VSYSOV_EVT, "chg_vsysov_evt"),
 247         DEFINE_RES_IRQ_NAMED(MT6360_CHG_VBATOV_EVT, "chg_vbatov_evt"),
 248         DEFINE_RES_IRQ_NAMED(MT6360_CHG_VBUSOV_EVT, "chg_vbusov_evt"),
 249         DEFINE_RES_IRQ_NAMED(MT6360_CHG_AICCMEASL, "chg_aiccmeasl"),
 250         DEFINE_RES_IRQ_NAMED(MT6360_WDTMRI, "wdtmri"),
 251         DEFINE_RES_IRQ_NAMED(MT6360_CHG_RECHGI, "chg_rechgi"),
 252         DEFINE_RES_IRQ_NAMED(MT6360_CHG_TERMI, "chg_termi"),
 253         DEFINE_RES_IRQ_NAMED(MT6360_CHG_IEOCI, "chg_ieoci"),
 254         DEFINE_RES_IRQ_NAMED(MT6360_PUMPX_DONEI, "pumpx_donei"),
 255         DEFINE_RES_IRQ_NAMED(MT6360_ATTACH_I, "attach_i"),
 256         DEFINE_RES_IRQ_NAMED(MT6360_CHRDET_EXT_EVT, "chrdet_ext_evt"),
 257 };
 258
 259 static const struct resource mt6360_led_resources[] = {
 260         DEFINE_RES_IRQ_NAMED(MT6360_FLED_CHG_VINOVP_EVT, "fled_chg_vinovp_evt"),
 261         DEFINE_RES_IRQ_NAMED(MT6360_FLED_LVF_EVT, "fled_lvf_evt"),
 262         DEFINE_RES_IRQ_NAMED(MT6360_FLED2_SHORT_EVT, "fled2_short_evt"),
 263         DEFINE_RES_IRQ_NAMED(MT6360_FLED1_SHORT_EVT, "fled1_short_evt"),
 264         DEFINE_RES_IRQ_NAMED(MT6360_FLED2_STRB_TO_EVT, "fled2_strb_to_evt"),
 265         DEFINE_RES_IRQ_NAMED(MT6360_FLED1_STRB_TO_EVT, "fled1_strb_to_evt"),
 266 };
 267
 268 static const struct resource mt6360_pmic_resources[] = {
 269         DEFINE_RES_IRQ_NAMED(MT6360_BUCK1_PGB_EVT, "buck1_pgb_evt"),
 270         DEFINE_RES_IRQ_NAMED(MT6360_BUCK1_OC_EVT, "buck1_oc_evt"),
 271         DEFINE_RES_IRQ_NAMED(MT6360_BUCK1_OV_EVT, "buck1_ov_evt"),
 272         DEFINE_RES_IRQ_NAMED(MT6360_BUCK1_UV_EVT, "buck1_uv_evt"),
 273         DEFINE_RES_IRQ_NAMED(MT6360_BUCK2_PGB_EVT, "buck2_pgb_evt"),
 274         DEFINE_RES_IRQ_NAMED(MT6360_BUCK2_OC_EVT, "buck2_oc_evt"),
 275         DEFINE_RES_IRQ_NAMED(MT6360_BUCK2_OV_EVT, "buck2_ov_evt"),
 276         DEFINE_RES_IRQ_NAMED(MT6360_BUCK2_UV_EVT, "buck2_uv_evt"),
 277         DEFINE_RES_IRQ_NAMED(MT6360_LDO6_OC_EVT, "ldo6_oc_evt"),
 278         DEFINE_RES_IRQ_NAMED(MT6360_LDO7_OC_EVT, "ldo7_oc_evt"),
 279         DEFINE_RES_IRQ_NAMED(MT6360_LDO6_PGB_EVT, "ldo6_pgb_evt"),
 280         DEFINE_RES_IRQ_NAMED(MT6360_LDO7_PGB_EVT, "ldo7_pgb_evt"),
 281 };
 282
 283 static const struct resource mt6360_ldo_resources[] = {
 284         DEFINE_RES_IRQ_NAMED(MT6360_LDO1_OC_EVT, "ldo1_oc_evt"),
 285         DEFINE_RES_IRQ_NAMED(MT6360_LDO2_OC_EVT, "ldo2_oc_evt"),
 286         DEFINE_RES_IRQ_NAMED(MT6360_LDO3_OC_EVT, "ldo3_oc_evt"),
 287         DEFINE_RES_IRQ_NAMED(MT6360_LDO5_OC_EVT, "ldo5_oc_evt"),
 288         DEFINE_RES_IRQ_NAMED(MT6360_LDO1_PGB_EVT, "ldo1_pgb_evt"),
 289         DEFINE_RES_IRQ_NAMED(MT6360_LDO2_PGB_EVT, "ldo2_pgb_evt"),
 290         DEFINE_RES_IRQ_NAMED(MT6360_LDO3_PGB_EVT, "ldo3_pgb_evt"),
 291         DEFINE_RES_IRQ_NAMED(MT6360_LDO5_PGB_EVT, "ldo5_pgb_evt"),
 292 };
 293
 294 static const struct mfd_cell mt6360_devs[] = {
 295         MFD_CELL_OF("mt6360_adc", mt6360_adc_resources,
 296                     NULL, 0, 0, "mediatek,mt6360_adc"),
 297         MFD_CELL_OF("mt6360_chg", mt6360_chg_resources,
 298                     NULL, 0, 0, "mediatek,mt6360_chg"),
 299         MFD_CELL_OF("mt6360_led", mt6360_led_resources,
 300                     NULL, 0, 0, "mediatek,mt6360_led"),
 301         MFD_CELL_OF("mt6360_pmic", mt6360_pmic_resources,
 302                     NULL, 0, 0, "mediatek,mt6360_pmic"),
 303         MFD_CELL_OF("mt6360_ldo", mt6360_ldo_resources,
 304                     NULL, 0, 0, "mediatek,mt6360_ldo"),
 305         MFD_CELL_OF("mt6360_tcpc", NULL,
 306                     NULL, 0, 0, "mediatek,mt6360_tcpc"),
 307 };
 308
 309 static const unsigned short mt6360_slave_addr[MT6360_SLAVE_MAX] = {
 310         MT6360_PMU_SLAVEID,
 311         MT6360_PMIC_SLAVEID,
 312         MT6360_LDO_SLAVEID,
 313         MT6360_TCPC_SLAVEID,
 314 };
 315
 316 static int mt6360_pmu_probe(struct i2c_client *client)
 317 {
 318         struct mt6360_pmu_data *mpd;
 319         unsigned int reg_data;
 320         int i, ret;
 321
 322         mpd = devm_kzalloc(&client->dev, sizeof(*mpd), GFP_KERNEL);
 323         if (!mpd)
 324                 return -ENOMEM;
 325
 326         mpd->dev = &client->dev;
 327         i2c_set_clientdata(client, mpd);
 328
 329         mpd->regmap = devm_regmap_init_i2c(client, &mt6360_pmu_regmap_config);
 330         if (IS_ERR(mpd->regmap)) {
 331                 dev_err(&client->dev, "Failed to register regmap\n");
 332                 return PTR_ERR(mpd->regmap);
 333         }
 334
 335         ret = regmap_read(mpd->regmap, MT6360_PMU_DEV_INFO, &reg_data);
 336         if (ret) {
 337                 dev_err(&client->dev, "Device not found\n");
 338                 return ret;
 339         }
 340
 341         mpd->chip_rev = reg_data & CHIP_REV_MASK;
 342         if (mpd->chip_rev != CHIP_VEN_MT6360) {
 343                 dev_err(&client->dev, "Device not supported\n");
 344                 return -ENODEV;
 345         }
 346
 347         mt6360_pmu_irq_chip.irq_drv_data = mpd;
 348         ret = devm_regmap_add_irq_chip(&client->dev, mpd->regmap, client->irq,
 349                                        IRQF_TRIGGER_FALLING, 0,
 350                                        &mt6360_pmu_irq_chip, &mpd->irq_data);
 351         if (ret) {
 352                 dev_err(&client->dev, "Failed to add Regmap IRQ Chip\n");
 353                 return ret;
 354         }
 355
 356         mpd->i2c[0] = client;
 357         for (i = 1; i < MT6360_SLAVE_MAX; i++) {
 358                 mpd->i2c[i] = devm_i2c_new_dummy_device(&client->dev,
 359                                                         client->adapter,
 360                                                         mt6360_slave_addr[i]);
 361                 if (IS_ERR(mpd->i2c[i])) {
 362                         dev_err(&client->dev,
 363                                 "Failed to get new dummy I2C device for address 0x%x",
 364                                 mt6360_slave_addr[i]);
 365                         return PTR_ERR(mpd->i2c[i]);
 366                 }
 367                 i2c_set_clientdata(mpd->i2c[i], mpd);
 368         }
 369
 370         ret = devm_mfd_add_devices(&client->dev, PLATFORM_DEVID_AUTO,
 371                                    mt6360_devs, ARRAY_SIZE(mt6360_devs), NULL,
 372                                    0, regmap_irq_get_domain(mpd->irq_data));
 373         if (ret) {
 374                 dev_err(&client->dev,
 375                         "Failed to register subordinate devices\n");
 376                 return ret;
 377         }
 378
 379         return 0;
 380 }
 381
 382 static int __maybe_unused mt6360_pmu_suspend(struct device *dev)
 383 {
 384         struct i2c_client *i2c = to_i2c_client(dev);
 385
 386         if (device_may_wakeup(dev))
 387                 enable_irq_wake(i2c->irq);
 388
 389         return 0;
 390 }
 391
 392 static int __maybe_unused mt6360_pmu_resume(struct device *dev)
 393 {
 394
 395         struct i2c_client *i2c = to_i2c_client(dev);
 396
 397         if (device_may_wakeup(dev))
 398                 disable_irq_wake(i2c->irq);
 399
 400         return 0;
 401 }
 402
 403 static SIMPLE_DEV_PM_OPS(mt6360_pmu_pm_ops,
 404                          mt6360_pmu_suspend, mt6360_pmu_resume);
 405
 406 static const struct of_device_id __maybe_unused mt6360_pmu_of_id[] = {
 407         { .compatible = "mediatek,mt6360_pmu", },
 408         {},
 409 };
 410 MODULE_DEVICE_TABLE(of, mt6360_pmu_of_id);
 411
 412 static struct i2c_driver mt6360_pmu_driver = {
 413         .driver = {
 414                 .name = "mt6360_pmu",
 415                 .pm = &mt6360_pmu_pm_ops,
 416                 .of_match_table = of_match_ptr(mt6360_pmu_of_id),
 417         },
 418         .probe_new = mt6360_pmu_probe,
 419 };
 420 module_i2c_driver(mt6360_pmu_driver);
 421
 422 MODULE_AUTHOR("Gene Chen <gene_chen@richtek.com>");
 423 MODULE_DESCRIPTION("MT6360 PMU I2C Driver");
 424 MODULE_LICENSE("GPL v2");