drivers/mfd/tps65912-core.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Core functions for TI TPS65912x PMICs
   4  *
   5  * Copyright (C) 2015 Texas Instruments Incorporated - https://www.ti.com/
   6  *      Andrew F. Davis <afd@ti.com>
   7  *
   8  * Based on the TPS65218 driver and the previous TPS65912 driver by
   9  * Margarita Olaya Cabrera <magi@slimlogic.co.uk>
  10  */
  11
  12 #include <linux/interrupt.h>
  13 #include <linux/mfd/core.h>
  14 #include <linux/module.h>
  15
  16 #include <linux/mfd/tps65912.h>
  17
  18 static const struct mfd_cell tps65912_cells[] = {
  19         { .name = "tps65912-regulator", },
  20         { .name = "tps65912-gpio", },
  21 };
  22
  23 static const struct regmap_irq tps65912_irqs[] = {
  24         /* INT_STS IRQs */
  25         REGMAP_IRQ_REG(TPS65912_IRQ_PWRHOLD_F, 0, TPS65912_INT_STS_PWRHOLD_F),
  26         REGMAP_IRQ_REG(TPS65912_IRQ_VMON, 0, TPS65912_INT_STS_VMON),
  27         REGMAP_IRQ_REG(TPS65912_IRQ_PWRON, 0, TPS65912_INT_STS_PWRON),
  28         REGMAP_IRQ_REG(TPS65912_IRQ_PWRON_LP, 0, TPS65912_INT_STS_PWRON_LP),
  29         REGMAP_IRQ_REG(TPS65912_IRQ_PWRHOLD_R, 0, TPS65912_INT_STS_PWRHOLD_R),
  30         REGMAP_IRQ_REG(TPS65912_IRQ_HOTDIE, 0, TPS65912_INT_STS_HOTDIE),
  31         REGMAP_IRQ_REG(TPS65912_IRQ_GPIO1_R, 0, TPS65912_INT_STS_GPIO1_R),
  32         REGMAP_IRQ_REG(TPS65912_IRQ_GPIO1_F, 0, TPS65912_INT_STS_GPIO1_F),
  33         /* INT_STS2 IRQs */
  34         REGMAP_IRQ_REG(TPS65912_IRQ_GPIO2_R, 1, TPS65912_INT_STS2_GPIO2_R),
  35         REGMAP_IRQ_REG(TPS65912_IRQ_GPIO2_F, 1, TPS65912_INT_STS2_GPIO2_F),
  36         REGMAP_IRQ_REG(TPS65912_IRQ_GPIO3_R, 1, TPS65912_INT_STS2_GPIO3_R),
  37         REGMAP_IRQ_REG(TPS65912_IRQ_GPIO3_F, 1, TPS65912_INT_STS2_GPIO3_F),
  38         REGMAP_IRQ_REG(TPS65912_IRQ_GPIO4_R, 1, TPS65912_INT_STS2_GPIO4_R),
  39         REGMAP_IRQ_REG(TPS65912_IRQ_GPIO4_F, 1, TPS65912_INT_STS2_GPIO4_F),
  40         REGMAP_IRQ_REG(TPS65912_IRQ_GPIO5_R, 1, TPS65912_INT_STS2_GPIO5_R),
  41         REGMAP_IRQ_REG(TPS65912_IRQ_GPIO5_F, 1, TPS65912_INT_STS2_GPIO5_F),
  42         /* INT_STS3 IRQs */
  43         REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_DCDC1, 2, TPS65912_INT_STS3_PGOOD_DCDC1),
  44         REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_DCDC2, 2, TPS65912_INT_STS3_PGOOD_DCDC2),
  45         REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_DCDC3, 2, TPS65912_INT_STS3_PGOOD_DCDC3),
  46         REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_DCDC4, 2, TPS65912_INT_STS3_PGOOD_DCDC4),
  47         REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO1, 2, TPS65912_INT_STS3_PGOOD_LDO1),
  48         REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO2, 2, TPS65912_INT_STS3_PGOOD_LDO2),
  49         REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO3, 2, TPS65912_INT_STS3_PGOOD_LDO3),
  50         REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO4, 2, TPS65912_INT_STS3_PGOOD_LDO4),
  51         /* INT_STS4 IRQs */
  52         REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO5, 3, TPS65912_INT_STS4_PGOOD_LDO5),
  53         REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO6, 3, TPS65912_INT_STS4_PGOOD_LDO6),
  54         REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO7, 3, TPS65912_INT_STS4_PGOOD_LDO7),
  55         REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO8, 3, TPS65912_INT_STS4_PGOOD_LDO8),
  56         REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO9, 3, TPS65912_INT_STS4_PGOOD_LDO9),
  57         REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO10, 3, TPS65912_INT_STS4_PGOOD_LDO10),
  58 };
  59
  60 static struct regmap_irq_chip tps65912_irq_chip = {
  61         .name = "tps65912",
  62         .irqs = tps65912_irqs,
  63         .num_irqs = ARRAY_SIZE(tps65912_irqs),
  64         .num_regs = 4,
  65         .irq_reg_stride = 2,
  66         .mask_base = TPS65912_INT_MSK,
  67         .status_base = TPS65912_INT_STS,
  68         .ack_base = TPS65912_INT_STS,
  69         .init_ack_masked = true,
  70 };
  71
  72 static const struct regmap_range tps65912_yes_ranges[] = {
  73         regmap_reg_range(TPS65912_INT_STS, TPS65912_GPIO5),
  74 };
  75
  76 static const struct regmap_access_table tps65912_volatile_table = {
  77         .yes_ranges = tps65912_yes_ranges,
  78         .n_yes_ranges = ARRAY_SIZE(tps65912_yes_ranges),
  79 };
  80
  81 const struct regmap_config tps65912_regmap_config = {
  82         .reg_bits = 8,
  83         .val_bits = 8,
  84         .cache_type = REGCACHE_RBTREE,
  85         .volatile_table = &tps65912_volatile_table,
  86 };
  87 EXPORT_SYMBOL_GPL(tps65912_regmap_config);
  88
  89 int tps65912_device_init(struct tps65912 *tps)
  90 {
  91         int ret;
  92
  93         ret = regmap_add_irq_chip(tps->regmap, tps->irq, IRQF_ONESHOT, 0,
  94                                   &tps65912_irq_chip, &tps->irq_data);
  95         if (ret)
  96                 return ret;
  97
  98         ret = mfd_add_devices(tps->dev, PLATFORM_DEVID_AUTO, tps65912_cells,
  99                               ARRAY_SIZE(tps65912_cells), NULL, 0,
 100                               regmap_irq_get_domain(tps->irq_data));
 101         if (ret) {
 102                 regmap_del_irq_chip(tps->irq, tps->irq_data);
 103                 return ret;
 104         }
 105
 106         return 0;
 107 }
 108 EXPORT_SYMBOL_GPL(tps65912_device_init);
 109
 110 void tps65912_device_exit(struct tps65912 *tps)
 111 {
 112         regmap_del_irq_chip(tps->irq, tps->irq_data);
 113 }
 114 EXPORT_SYMBOL_GPL(tps65912_device_exit);
 115
 116 MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");
 117 MODULE_DESCRIPTION("TPS65912x MFD Driver");
 118 MODULE_LICENSE("GPL v2");