forked from Minki/linux
abd4627475
Based on the normalized pattern:
this program is free software you can redistribute it and/or modify it
under the terms of the gnu general public license version 2 as
published by the free software foundation this program is distributed
as is without any warranty of any kind whether expressed or implied
without even the implied warranty of merchantability or fitness for a
particular purpose see the gnu general public license version 2 for
more details
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference.
Reviewed-by: Allison Randal <allison@lohutok.net>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
144 lines
3.8 KiB
C
144 lines
3.8 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (C) 2015 Texas Instruments Incorporated - https://www.ti.com/
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* Andrew F. Davis <afd@ti.com>
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*
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* Based on the TPS65912 driver
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*/
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#include <linux/i2c.h>
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#include <linux/interrupt.h>
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#include <linux/mfd/core.h>
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#include <linux/module.h>
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#include <linux/mfd/tps65086.h>
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static const struct mfd_cell tps65086_cells[] = {
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{ .name = "tps65086-regulator", },
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{ .name = "tps65086-gpio", },
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{ .name = "tps65086-reset", },
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};
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static const struct regmap_range tps65086_yes_ranges[] = {
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regmap_reg_range(TPS65086_IRQ, TPS65086_IRQ),
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regmap_reg_range(TPS65086_PMICSTAT, TPS65086_SHUTDNSRC),
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regmap_reg_range(TPS65086_GPOCTRL, TPS65086_GPOCTRL),
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regmap_reg_range(TPS65086_PG_STATUS1, TPS65086_OC_STATUS),
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};
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static const struct regmap_access_table tps65086_volatile_table = {
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.yes_ranges = tps65086_yes_ranges,
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.n_yes_ranges = ARRAY_SIZE(tps65086_yes_ranges),
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};
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static const struct regmap_config tps65086_regmap_config = {
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.reg_bits = 8,
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.val_bits = 8,
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.cache_type = REGCACHE_RBTREE,
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.volatile_table = &tps65086_volatile_table,
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};
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static const struct regmap_irq tps65086_irqs[] = {
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REGMAP_IRQ_REG(TPS65086_IRQ_DIETEMP, 0, TPS65086_IRQ_DIETEMP_MASK),
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REGMAP_IRQ_REG(TPS65086_IRQ_SHUTDN, 0, TPS65086_IRQ_SHUTDN_MASK),
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REGMAP_IRQ_REG(TPS65086_IRQ_FAULT, 0, TPS65086_IRQ_FAULT_MASK),
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};
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static struct regmap_irq_chip tps65086_irq_chip = {
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.name = "tps65086",
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.status_base = TPS65086_IRQ,
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.mask_base = TPS65086_IRQ_MASK,
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.ack_base = TPS65086_IRQ,
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.init_ack_masked = true,
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.num_regs = 1,
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.irqs = tps65086_irqs,
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.num_irqs = ARRAY_SIZE(tps65086_irqs),
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};
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static const struct of_device_id tps65086_of_match_table[] = {
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{ .compatible = "ti,tps65086", },
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{ /* sentinel */ }
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};
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MODULE_DEVICE_TABLE(of, tps65086_of_match_table);
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static int tps65086_probe(struct i2c_client *client,
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const struct i2c_device_id *ids)
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{
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struct tps65086 *tps;
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unsigned int version;
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int ret;
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tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL);
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if (!tps)
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return -ENOMEM;
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i2c_set_clientdata(client, tps);
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tps->dev = &client->dev;
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tps->irq = client->irq;
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tps->regmap = devm_regmap_init_i2c(client, &tps65086_regmap_config);
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if (IS_ERR(tps->regmap)) {
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dev_err(tps->dev, "Failed to initialize register map\n");
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return PTR_ERR(tps->regmap);
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}
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ret = regmap_read(tps->regmap, TPS65086_DEVICEID, &version);
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if (ret) {
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dev_err(tps->dev, "Failed to read revision register\n");
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return ret;
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}
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dev_info(tps->dev, "Device: TPS65086%01lX, OTP: %c, Rev: %ld\n",
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(version & TPS65086_DEVICEID_PART_MASK),
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(char)((version & TPS65086_DEVICEID_OTP_MASK) >> 4) + 'A',
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(version & TPS65086_DEVICEID_REV_MASK) >> 6);
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if (tps->irq > 0) {
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ret = regmap_add_irq_chip(tps->regmap, tps->irq, IRQF_ONESHOT, 0,
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&tps65086_irq_chip, &tps->irq_data);
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if (ret) {
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dev_err(tps->dev, "Failed to register IRQ chip\n");
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return ret;
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}
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}
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ret = mfd_add_devices(tps->dev, PLATFORM_DEVID_AUTO, tps65086_cells,
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ARRAY_SIZE(tps65086_cells), NULL, 0,
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regmap_irq_get_domain(tps->irq_data));
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if (ret && tps->irq > 0)
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regmap_del_irq_chip(tps->irq, tps->irq_data);
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return ret;
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}
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static int tps65086_remove(struct i2c_client *client)
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{
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struct tps65086 *tps = i2c_get_clientdata(client);
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if (tps->irq > 0)
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regmap_del_irq_chip(tps->irq, tps->irq_data);
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return 0;
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}
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static const struct i2c_device_id tps65086_id_table[] = {
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{ "tps65086", 0 },
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{ /* sentinel */ }
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};
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MODULE_DEVICE_TABLE(i2c, tps65086_id_table);
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static struct i2c_driver tps65086_driver = {
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.driver = {
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.name = "tps65086",
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.of_match_table = tps65086_of_match_table,
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},
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.probe = tps65086_probe,
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.remove = tps65086_remove,
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.id_table = tps65086_id_table,
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};
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module_i2c_driver(tps65086_driver);
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MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");
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MODULE_DESCRIPTION("TPS65086 PMIC Driver");
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MODULE_LICENSE("GPL v2");
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