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
 18static const struct mfd_cell tps65912_cells[] = {
 19	{ .name = "tps65912-regulator", },
 20	{ .name = "tps65912-gpio", },
 21};
 22
 23static 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
 60static const 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
 72static const struct regmap_range tps65912_yes_ranges[] = {
 73	regmap_reg_range(TPS65912_INT_STS, TPS65912_GPIO5),
 74};
 75
 76static 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
 81const struct regmap_config tps65912_regmap_config = {
 82	.reg_bits = 8,
 83	.val_bits = 8,
 84	.cache_type = REGCACHE_MAPLE,
 85	.volatile_table = &tps65912_volatile_table,
 86};
 87EXPORT_SYMBOL_GPL(tps65912_regmap_config);
 88
 89int tps65912_device_init(struct tps65912 *tps)
 90{
 91	int ret;
 92
 93	ret = devm_regmap_add_irq_chip(tps->dev, tps->regmap, tps->irq,
 94				       IRQF_ONESHOT, 0, &tps65912_irq_chip,
 95				       &tps->irq_data);
 96	if (ret)
 97		return ret;
 98
 99	ret = devm_mfd_add_devices(tps->dev, PLATFORM_DEVID_AUTO, tps65912_cells,
100				   ARRAY_SIZE(tps65912_cells), NULL, 0,
101				   regmap_irq_get_domain(tps->irq_data));
102	if (ret)
103		return ret;
104
105	return 0;
106}
107EXPORT_SYMBOL_GPL(tps65912_device_init);
108
109MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");
110MODULE_DESCRIPTION("TPS65912x MFD Driver");
111MODULE_LICENSE("GPL v2");