drivers/mfd/da9063-irq.c

   1 /* da9063-irq.c: Interrupts support for Dialog DA9063
   2  *
   3  * Copyright 2012 Dialog Semiconductor Ltd.
   4  * Copyright 2013 Philipp Zabel, Pengutronix
   5  *
   6  * Author: Michal Hajduk, Dialog Semiconductor
   7  *
   8  *  This program is free software; you can redistribute  it and/or modify it
   9  *  under  the terms of  the GNU General  Public License as published by the
  10  *  Free Software Foundation;  either version 2 of the  License, or (at your
  11  *  option) any later version.
  12  *
  13  */
  14
  15 #include <linux/kernel.h>
  16 #include <linux/module.h>
  17 #include <linux/irq.h>
  18 #include <linux/mfd/core.h>
  19 #include <linux/interrupt.h>
  20 #include <linux/regmap.h>
  21 #include <linux/mfd/da9063/core.h>
  22 #include <linux/mfd/da9063/pdata.h>
  23
  24 #define DA9063_REG_EVENT_A_OFFSET       0
  25 #define DA9063_REG_EVENT_B_OFFSET       1
  26 #define DA9063_REG_EVENT_C_OFFSET       2
  27 #define DA9063_REG_EVENT_D_OFFSET       3
  28
  29 static const struct regmap_irq da9063_irqs[] = {
  30         /* DA9063 event A register */
  31         REGMAP_IRQ_REG(DA9063_IRQ_ONKEY,
  32                        DA9063_REG_EVENT_A_OFFSET, DA9063_M_ONKEY),
  33         REGMAP_IRQ_REG(DA9063_IRQ_ALARM,
  34                        DA9063_REG_EVENT_A_OFFSET, DA9063_M_ALARM),
  35         REGMAP_IRQ_REG(DA9063_IRQ_TICK,
  36                        DA9063_REG_EVENT_A_OFFSET, DA9063_M_TICK),
  37         REGMAP_IRQ_REG(DA9063_IRQ_ADC_RDY,
  38                        DA9063_REG_EVENT_A_OFFSET, DA9063_M_ADC_RDY),
  39         REGMAP_IRQ_REG(DA9063_IRQ_SEQ_RDY,
  40                        DA9063_REG_EVENT_A_OFFSET, DA9063_M_SEQ_RDY),
  41         /* DA9063 event B register */
  42         REGMAP_IRQ_REG(DA9063_IRQ_WAKE,
  43                        DA9063_REG_EVENT_B_OFFSET, DA9063_M_WAKE),
  44         REGMAP_IRQ_REG(DA9063_IRQ_TEMP,
  45                        DA9063_REG_EVENT_B_OFFSET, DA9063_M_TEMP),
  46         REGMAP_IRQ_REG(DA9063_IRQ_COMP_1V2,
  47                        DA9063_REG_EVENT_B_OFFSET, DA9063_M_COMP_1V2),
  48         REGMAP_IRQ_REG(DA9063_IRQ_LDO_LIM,
  49                        DA9063_REG_EVENT_B_OFFSET, DA9063_M_LDO_LIM),
  50         REGMAP_IRQ_REG(DA9063_IRQ_REG_UVOV,
  51                        DA9063_REG_EVENT_B_OFFSET, DA9063_M_UVOV),
  52         REGMAP_IRQ_REG(DA9063_IRQ_DVC_RDY,
  53                        DA9063_REG_EVENT_B_OFFSET, DA9063_M_DVC_RDY),
  54         REGMAP_IRQ_REG(DA9063_IRQ_VDD_MON,
  55                        DA9063_REG_EVENT_B_OFFSET, DA9063_M_VDD_MON),
  56         REGMAP_IRQ_REG(DA9063_IRQ_WARN,
  57                        DA9063_REG_EVENT_B_OFFSET, DA9063_M_VDD_WARN),
  58         /* DA9063 event C register */
  59         REGMAP_IRQ_REG(DA9063_IRQ_GPI0,
  60                        DA9063_REG_EVENT_C_OFFSET, DA9063_M_GPI0),
  61         REGMAP_IRQ_REG(DA9063_IRQ_GPI1,
  62                        DA9063_REG_EVENT_C_OFFSET, DA9063_M_GPI1),
  63         REGMAP_IRQ_REG(DA9063_IRQ_GPI2,
  64                        DA9063_REG_EVENT_C_OFFSET, DA9063_M_GPI2),
  65         REGMAP_IRQ_REG(DA9063_IRQ_GPI3,
  66                        DA9063_REG_EVENT_C_OFFSET, DA9063_M_GPI3),
  67         REGMAP_IRQ_REG(DA9063_IRQ_GPI4,
  68                        DA9063_REG_EVENT_C_OFFSET, DA9063_M_GPI4),
  69         REGMAP_IRQ_REG(DA9063_IRQ_GPI5,
  70                        DA9063_REG_EVENT_C_OFFSET, DA9063_M_GPI5),
  71         REGMAP_IRQ_REG(DA9063_IRQ_GPI6,
  72                        DA9063_REG_EVENT_C_OFFSET, DA9063_M_GPI6),
  73         REGMAP_IRQ_REG(DA9063_IRQ_GPI7,
  74                        DA9063_REG_EVENT_C_OFFSET, DA9063_M_GPI7),
  75         /* DA9063 event D register */
  76         REGMAP_IRQ_REG(DA9063_IRQ_GPI8,
  77                        DA9063_REG_EVENT_D_OFFSET, DA9063_M_GPI8),
  78         REGMAP_IRQ_REG(DA9063_IRQ_GPI9,
  79                        DA9063_REG_EVENT_D_OFFSET, DA9063_M_GPI9),
  80         REGMAP_IRQ_REG(DA9063_IRQ_GPI10,
  81                        DA9063_REG_EVENT_D_OFFSET, DA9063_M_GPI10),
  82         REGMAP_IRQ_REG(DA9063_IRQ_GPI11,
  83                        DA9063_REG_EVENT_D_OFFSET, DA9063_M_GPI11),
  84         REGMAP_IRQ_REG(DA9063_IRQ_GPI12,
  85                        DA9063_REG_EVENT_D_OFFSET, DA9063_M_GPI12),
  86         REGMAP_IRQ_REG(DA9063_IRQ_GPI13,
  87                        DA9063_REG_EVENT_D_OFFSET, DA9063_M_GPI13),
  88         REGMAP_IRQ_REG(DA9063_IRQ_GPI14,
  89                        DA9063_REG_EVENT_D_OFFSET, DA9063_M_GPI14),
  90         REGMAP_IRQ_REG(DA9063_IRQ_GPI15,
  91                        DA9063_REG_EVENT_D_OFFSET, DA9063_M_GPI15),
  92 };
  93
  94 static const struct regmap_irq_chip da9063_irq_chip = {
  95         .name = "da9063-irq",
  96         .irqs = da9063_irqs,
  97         .num_irqs = ARRAY_SIZE(da9063_irqs),
  98         .num_regs = 4,
  99         .status_base = DA9063_REG_EVENT_A,
 100         .mask_base = DA9063_REG_IRQ_MASK_A,
 101         .ack_base = DA9063_REG_EVENT_A,
 102         .init_ack_masked = true,
 103 };
 104
 105 static const struct regmap_irq da9063l_irqs[] = {
 106         /* DA9063 event A register */
 107         REGMAP_IRQ_REG(DA9063_IRQ_ONKEY,
 108                        DA9063_REG_EVENT_A_OFFSET, DA9063_M_ONKEY),
 109         REGMAP_IRQ_REG(DA9063_IRQ_ADC_RDY,
 110                        DA9063_REG_EVENT_A_OFFSET, DA9063_M_ADC_RDY),
 111         REGMAP_IRQ_REG(DA9063_IRQ_SEQ_RDY,
 112                        DA9063_REG_EVENT_A_OFFSET, DA9063_M_SEQ_RDY),
 113         /* DA9063 event B register */
 114         REGMAP_IRQ_REG(DA9063_IRQ_WAKE,
 115                        DA9063_REG_EVENT_B_OFFSET, DA9063_M_WAKE),
 116         REGMAP_IRQ_REG(DA9063_IRQ_TEMP,
 117                        DA9063_REG_EVENT_B_OFFSET, DA9063_M_TEMP),
 118         REGMAP_IRQ_REG(DA9063_IRQ_COMP_1V2,
 119                        DA9063_REG_EVENT_B_OFFSET, DA9063_M_COMP_1V2),
 120         REGMAP_IRQ_REG(DA9063_IRQ_LDO_LIM,
 121                        DA9063_REG_EVENT_B_OFFSET, DA9063_M_LDO_LIM),
 122         REGMAP_IRQ_REG(DA9063_IRQ_REG_UVOV,
 123                        DA9063_REG_EVENT_B_OFFSET, DA9063_M_UVOV),
 124         REGMAP_IRQ_REG(DA9063_IRQ_DVC_RDY,
 125                        DA9063_REG_EVENT_B_OFFSET, DA9063_M_DVC_RDY),
 126         REGMAP_IRQ_REG(DA9063_IRQ_VDD_MON,
 127                        DA9063_REG_EVENT_B_OFFSET, DA9063_M_VDD_MON),
 128         REGMAP_IRQ_REG(DA9063_IRQ_WARN,
 129                        DA9063_REG_EVENT_B_OFFSET, DA9063_M_VDD_WARN),
 130         /* DA9063 event C register */
 131         REGMAP_IRQ_REG(DA9063_IRQ_GPI0,
 132                        DA9063_REG_EVENT_C_OFFSET, DA9063_M_GPI0),
 133         REGMAP_IRQ_REG(DA9063_IRQ_GPI1,
 134                        DA9063_REG_EVENT_C_OFFSET, DA9063_M_GPI1),
 135         REGMAP_IRQ_REG(DA9063_IRQ_GPI2,
 136                        DA9063_REG_EVENT_C_OFFSET, DA9063_M_GPI2),
 137         REGMAP_IRQ_REG(DA9063_IRQ_GPI3,
 138                        DA9063_REG_EVENT_C_OFFSET, DA9063_M_GPI3),
 139         REGMAP_IRQ_REG(DA9063_IRQ_GPI4,
 140                        DA9063_REG_EVENT_C_OFFSET, DA9063_M_GPI4),
 141         REGMAP_IRQ_REG(DA9063_IRQ_GPI5,
 142                        DA9063_REG_EVENT_C_OFFSET, DA9063_M_GPI5),
 143         REGMAP_IRQ_REG(DA9063_IRQ_GPI6,
 144                        DA9063_REG_EVENT_C_OFFSET, DA9063_M_GPI6),
 145         REGMAP_IRQ_REG(DA9063_IRQ_GPI7,
 146                        DA9063_REG_EVENT_C_OFFSET, DA9063_M_GPI7),
 147         /* DA9063 event D register */
 148         REGMAP_IRQ_REG(DA9063_IRQ_GPI8,
 149                        DA9063_REG_EVENT_D_OFFSET, DA9063_M_GPI8),
 150         REGMAP_IRQ_REG(DA9063_IRQ_GPI9,
 151                        DA9063_REG_EVENT_D_OFFSET, DA9063_M_GPI9),
 152         REGMAP_IRQ_REG(DA9063_IRQ_GPI10,
 153                        DA9063_REG_EVENT_D_OFFSET, DA9063_M_GPI10),
 154         REGMAP_IRQ_REG(DA9063_IRQ_GPI11,
 155                        DA9063_REG_EVENT_D_OFFSET, DA9063_M_GPI11),
 156         REGMAP_IRQ_REG(DA9063_IRQ_GPI12,
 157                        DA9063_REG_EVENT_D_OFFSET, DA9063_M_GPI12),
 158         REGMAP_IRQ_REG(DA9063_IRQ_GPI13,
 159                        DA9063_REG_EVENT_D_OFFSET, DA9063_M_GPI13),
 160         REGMAP_IRQ_REG(DA9063_IRQ_GPI14,
 161                        DA9063_REG_EVENT_D_OFFSET, DA9063_M_GPI14),
 162         REGMAP_IRQ_REG(DA9063_IRQ_GPI15,
 163                        DA9063_REG_EVENT_D_OFFSET, DA9063_M_GPI15),
 164 };
 165
 166 static const struct regmap_irq_chip da9063l_irq_chip = {
 167         .name = "da9063l-irq",
 168         .irqs = da9063l_irqs,
 169         .num_irqs = ARRAY_SIZE(da9063l_irqs),
 170         .num_regs = 4,
 171         .status_base = DA9063_REG_EVENT_A,
 172         .mask_base = DA9063_REG_IRQ_MASK_A,
 173         .ack_base = DA9063_REG_EVENT_A,
 174         .init_ack_masked = true,
 175 };
 176
 177 int da9063_irq_init(struct da9063 *da9063)
 178 {
 179         const struct regmap_irq_chip *irq_chip;
 180         int ret;
 181
 182         if (!da9063->chip_irq) {
 183                 dev_err(da9063->dev, "No IRQ configured\n");
 184                 return -EINVAL;
 185         }
 186
 187         if (da9063->type == PMIC_TYPE_DA9063)
 188                 irq_chip = &da9063_irq_chip;
 189         else
 190                 irq_chip = &da9063l_irq_chip;
 191
 192         ret = devm_regmap_add_irq_chip(da9063->dev, da9063->regmap,
 193                         da9063->chip_irq,
 194                         IRQF_TRIGGER_LOW | IRQF_ONESHOT | IRQF_SHARED,
 195                         da9063->irq_base, irq_chip, &da9063->regmap_irq);
 196         if (ret) {
 197                 dev_err(da9063->dev, "Failed to reguest IRQ %d: %d\n",
 198                                 da9063->chip_irq, ret);
 199                 return ret;
 200         }
 201
 202         return 0;
 203 }