mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-16 08:44:21 +08:00
9816d85923
After commitb8a1a4cd5a("i2c: Provide a temporary .probe_new() call-back type"), all drivers being converted to .probe_new() and then03c835f498("i2c: Switch .probe() to not take an id parameter") convert back to (the new) .probe() to be able to eventually drop .probe_new() from struct i2c_driver. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20230515182752.10050-1-u.kleine-koenig@pengutronix.de Signed-off-by: Lee Jones <lee@kernel.org>
124 lines
3.4 KiB
C
124 lines
3.4 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* Copyright (C) 2022 Richtek Technology Corp.
|
|
* Author: ChiYuan Huang <cy_huang@richtek.com>
|
|
*/
|
|
|
|
#include <linux/i2c.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/mfd/core.h>
|
|
#include <linux/module.h>
|
|
#include <linux/mod_devicetable.h>
|
|
#include <linux/regmap.h>
|
|
|
|
#define RT5120_REG_INTENABLE 0x1D
|
|
#define RT5120_REG_INTSTAT 0x1E
|
|
#define RT5120_REG_FZCMODE 0x44
|
|
|
|
#define RT5120_INT_HOTDIE 0
|
|
#define RT5120_INT_PWRKEY_REL 5
|
|
#define RT5120_INT_PWRKEY_PRESS 6
|
|
|
|
static const struct regmap_range rt5120_rd_yes_ranges[] = {
|
|
regmap_reg_range(0x03, 0x13),
|
|
regmap_reg_range(0x1c, 0x20),
|
|
regmap_reg_range(0x44, 0x44),
|
|
};
|
|
|
|
static const struct regmap_range rt5120_wr_yes_ranges[] = {
|
|
regmap_reg_range(0x06, 0x13),
|
|
regmap_reg_range(0x1c, 0x20),
|
|
regmap_reg_range(0x44, 0x44),
|
|
};
|
|
|
|
static const struct regmap_access_table rt5120_rd_table = {
|
|
.yes_ranges = rt5120_rd_yes_ranges,
|
|
.n_yes_ranges = ARRAY_SIZE(rt5120_rd_yes_ranges),
|
|
};
|
|
|
|
static const struct regmap_access_table rt5120_wr_table = {
|
|
.yes_ranges = rt5120_wr_yes_ranges,
|
|
.n_yes_ranges = ARRAY_SIZE(rt5120_wr_yes_ranges),
|
|
};
|
|
|
|
static const struct regmap_config rt5120_regmap_config = {
|
|
.reg_bits = 8,
|
|
.val_bits = 8,
|
|
.max_register = RT5120_REG_FZCMODE,
|
|
|
|
.wr_table = &rt5120_wr_table,
|
|
.rd_table = &rt5120_rd_table,
|
|
};
|
|
|
|
static const struct regmap_irq rt5120_irqs[] = {
|
|
REGMAP_IRQ_REG_LINE(RT5120_INT_HOTDIE, 8),
|
|
REGMAP_IRQ_REG_LINE(RT5120_INT_PWRKEY_REL, 8),
|
|
REGMAP_IRQ_REG_LINE(RT5120_INT_PWRKEY_PRESS, 8),
|
|
};
|
|
|
|
static const struct regmap_irq_chip rt5120_irq_chip = {
|
|
.name = "rt5120-pmic",
|
|
.status_base = RT5120_REG_INTSTAT,
|
|
.unmask_base = RT5120_REG_INTENABLE,
|
|
.ack_base = RT5120_REG_INTSTAT,
|
|
.use_ack = true,
|
|
.num_regs = 1,
|
|
.irqs = rt5120_irqs,
|
|
.num_irqs = ARRAY_SIZE(rt5120_irqs),
|
|
};
|
|
|
|
static const struct resource rt5120_regulator_resources[] = {
|
|
DEFINE_RES_IRQ(RT5120_INT_HOTDIE),
|
|
};
|
|
|
|
static const struct resource rt5120_pwrkey_resources[] = {
|
|
DEFINE_RES_IRQ_NAMED(RT5120_INT_PWRKEY_PRESS, "pwrkey-press"),
|
|
DEFINE_RES_IRQ_NAMED(RT5120_INT_PWRKEY_REL, "pwrkey-release"),
|
|
};
|
|
|
|
static const struct mfd_cell rt5120_devs[] = {
|
|
MFD_CELL_RES("rt5120-regulator", rt5120_regulator_resources),
|
|
MFD_CELL_OF("rt5120-pwrkey", rt5120_pwrkey_resources, NULL, 0, 0, "richtek,rt5120-pwrkey"),
|
|
};
|
|
|
|
static int rt5120_probe(struct i2c_client *i2c)
|
|
{
|
|
struct device *dev = &i2c->dev;
|
|
struct regmap *regmap;
|
|
struct regmap_irq_chip_data *irq_data;
|
|
int ret;
|
|
|
|
regmap = devm_regmap_init_i2c(i2c, &rt5120_regmap_config);
|
|
if (IS_ERR(regmap))
|
|
return dev_err_probe(dev, PTR_ERR(regmap),
|
|
"Failed to init regmap\n");
|
|
|
|
ret = devm_regmap_add_irq_chip(dev, regmap, i2c->irq, IRQF_ONESHOT, 0,
|
|
&rt5120_irq_chip, &irq_data);
|
|
if (ret)
|
|
return dev_err_probe(dev, ret, "Failed to add IRQ chip\n");
|
|
|
|
return devm_mfd_add_devices(dev, PLATFORM_DEVID_AUTO, rt5120_devs,
|
|
ARRAY_SIZE(rt5120_devs), NULL, 0,
|
|
regmap_irq_get_domain(irq_data));
|
|
}
|
|
|
|
static const struct of_device_id rt5120_device_match_table[] = {
|
|
{ .compatible = "richtek,rt5120" },
|
|
{}
|
|
};
|
|
MODULE_DEVICE_TABLE(of, rt5120_device_match_table);
|
|
|
|
static struct i2c_driver rt5120_driver = {
|
|
.driver = {
|
|
.name = "rt5120",
|
|
.of_match_table = rt5120_device_match_table,
|
|
},
|
|
.probe = rt5120_probe,
|
|
};
|
|
module_i2c_driver(rt5120_driver);
|
|
|
|
MODULE_AUTHOR("ChiYuan Huang <cy_huang@richtek.com>");
|
|
MODULE_DESCRIPTION("Richtek RT5120 I2C driver");
|
|
MODULE_LICENSE("GPL v2");
|