drivers/mfd/tps65912-core.c

0001 // SPDX-License-Identifier: GPL-2.0-only
0002 /*
0003  * Core functions for TI TPS65912x PMICs
0004  *
0005  * Copyright (C) 2015 Texas Instruments Incorporated - https://www.ti.com/
0006  *  Andrew F. Davis <afd@ti.com>
0007  *
0008  * Based on the TPS65218 driver and the previous TPS65912 driver by
0009  * Margarita Olaya Cabrera <magi@slimlogic.co.uk>
0010  */
0011
0012 #include <linux/interrupt.h>
0013 #include <linux/mfd/core.h>
0014 #include <linux/module.h>
0015
0016 #include <linux/mfd/tps65912.h>
0017
0018 static const struct mfd_cell tps65912_cells[] = {
0019     { .name = "tps65912-regulator", },
0020     { .name = "tps65912-gpio", },
0021 };
0022
0023 static const struct regmap_irq tps65912_irqs[] = {
0024     /* INT_STS IRQs */
0025     REGMAP_IRQ_REG(TPS65912_IRQ_PWRHOLD_F, 0, TPS65912_INT_STS_PWRHOLD_F),
0026     REGMAP_IRQ_REG(TPS65912_IRQ_VMON, 0, TPS65912_INT_STS_VMON),
0027     REGMAP_IRQ_REG(TPS65912_IRQ_PWRON, 0, TPS65912_INT_STS_PWRON),
0028     REGMAP_IRQ_REG(TPS65912_IRQ_PWRON_LP, 0, TPS65912_INT_STS_PWRON_LP),
0029     REGMAP_IRQ_REG(TPS65912_IRQ_PWRHOLD_R, 0, TPS65912_INT_STS_PWRHOLD_R),
0030     REGMAP_IRQ_REG(TPS65912_IRQ_HOTDIE, 0, TPS65912_INT_STS_HOTDIE),
0031     REGMAP_IRQ_REG(TPS65912_IRQ_GPIO1_R, 0, TPS65912_INT_STS_GPIO1_R),
0032     REGMAP_IRQ_REG(TPS65912_IRQ_GPIO1_F, 0, TPS65912_INT_STS_GPIO1_F),
0033     /* INT_STS2 IRQs */
0034     REGMAP_IRQ_REG(TPS65912_IRQ_GPIO2_R, 1, TPS65912_INT_STS2_GPIO2_R),
0035     REGMAP_IRQ_REG(TPS65912_IRQ_GPIO2_F, 1, TPS65912_INT_STS2_GPIO2_F),
0036     REGMAP_IRQ_REG(TPS65912_IRQ_GPIO3_R, 1, TPS65912_INT_STS2_GPIO3_R),
0037     REGMAP_IRQ_REG(TPS65912_IRQ_GPIO3_F, 1, TPS65912_INT_STS2_GPIO3_F),
0038     REGMAP_IRQ_REG(TPS65912_IRQ_GPIO4_R, 1, TPS65912_INT_STS2_GPIO4_R),
0039     REGMAP_IRQ_REG(TPS65912_IRQ_GPIO4_F, 1, TPS65912_INT_STS2_GPIO4_F),
0040     REGMAP_IRQ_REG(TPS65912_IRQ_GPIO5_R, 1, TPS65912_INT_STS2_GPIO5_R),
0041     REGMAP_IRQ_REG(TPS65912_IRQ_GPIO5_F, 1, TPS65912_INT_STS2_GPIO5_F),
0042     /* INT_STS3 IRQs */
0043     REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_DCDC1, 2, TPS65912_INT_STS3_PGOOD_DCDC1),
0044     REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_DCDC2, 2, TPS65912_INT_STS3_PGOOD_DCDC2),
0045     REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_DCDC3, 2, TPS65912_INT_STS3_PGOOD_DCDC3),
0046     REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_DCDC4, 2, TPS65912_INT_STS3_PGOOD_DCDC4),
0047     REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO1, 2, TPS65912_INT_STS3_PGOOD_LDO1),
0048     REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO2, 2, TPS65912_INT_STS3_PGOOD_LDO2),
0049     REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO3, 2, TPS65912_INT_STS3_PGOOD_LDO3),
0050     REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO4, 2, TPS65912_INT_STS3_PGOOD_LDO4),
0051     /* INT_STS4 IRQs */
0052     REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO5, 3, TPS65912_INT_STS4_PGOOD_LDO5),
0053     REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO6, 3, TPS65912_INT_STS4_PGOOD_LDO6),
0054     REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO7, 3, TPS65912_INT_STS4_PGOOD_LDO7),
0055     REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO8, 3, TPS65912_INT_STS4_PGOOD_LDO8),
0056     REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO9, 3, TPS65912_INT_STS4_PGOOD_LDO9),
0057     REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO10, 3, TPS65912_INT_STS4_PGOOD_LDO10),
0058 };
0059
0060 static struct regmap_irq_chip tps65912_irq_chip = {
0061     .name = "tps65912",
0062     .irqs = tps65912_irqs,
0063     .num_irqs = ARRAY_SIZE(tps65912_irqs),
0064     .num_regs = 4,
0065     .irq_reg_stride = 2,
0066     .mask_base = TPS65912_INT_MSK,
0067     .status_base = TPS65912_INT_STS,
0068     .ack_base = TPS65912_INT_STS,
0069     .init_ack_masked = true,
0070 };
0071
0072 static const struct regmap_range tps65912_yes_ranges[] = {
0073     regmap_reg_range(TPS65912_INT_STS, TPS65912_GPIO5),
0074 };
0075
0076 static const struct regmap_access_table tps65912_volatile_table = {
0077     .yes_ranges = tps65912_yes_ranges,
0078     .n_yes_ranges = ARRAY_SIZE(tps65912_yes_ranges),
0079 };
0080
0081 const struct regmap_config tps65912_regmap_config = {
0082     .reg_bits = 8,
0083     .val_bits = 8,
0084     .cache_type = REGCACHE_RBTREE,
0085     .volatile_table = &tps65912_volatile_table,
0086 };
0087 EXPORT_SYMBOL_GPL(tps65912_regmap_config);
0088
0089 int tps65912_device_init(struct tps65912 *tps)
0090 {
0091     int ret;
0092
0093     ret = regmap_add_irq_chip(tps->regmap, tps->irq, IRQF_ONESHOT, 0,
0094                   &tps65912_irq_chip, &tps->irq_data);
0095     if (ret)
0096         return ret;
0097
0098     ret = mfd_add_devices(tps->dev, PLATFORM_DEVID_AUTO, tps65912_cells,
0099                   ARRAY_SIZE(tps65912_cells), NULL, 0,
0100                   regmap_irq_get_domain(tps->irq_data));
0101     if (ret) {
0102         regmap_del_irq_chip(tps->irq, tps->irq_data);
0103         return ret;
0104     }
0105
0106     return 0;
0107 }
0108 EXPORT_SYMBOL_GPL(tps65912_device_init);
0109
0110 void tps65912_device_exit(struct tps65912 *tps)
0111 {
0112     regmap_del_irq_chip(tps->irq, tps->irq_data);
0113 }
0114 EXPORT_SYMBOL_GPL(tps65912_device_exit);
0115
0116 MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");
0117 MODULE_DESCRIPTION("TPS65912x MFD Driver");
0118 MODULE_LICENSE("GPL v2");