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mfd: Add Ricoh RN5T618 PMIC core driver
Ricoh RN5T618 is a power management IC which integrates 3 step-down DCDC converters, 7 low-dropout regulators, a Li-ion battery charger, fuel gauge, ADC, GPIOs and a watchdog timer. This commit adds a MFD core driver to support the I2C communication with the device. Signed-off-by: Beniamino Galvani <b.galvani@gmail.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Beniamino Galvani
Lee Jones
parent
6ac734d224
commit
9bb9e29c78
@ -597,6 +597,17 @@ config MFD_RC5T583
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Additional drivers must be enabled in order to use the
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different functionality of the device.
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config MFD_RN5T618
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tristate "Ricoh RN5T5618 PMIC"
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depends on I2C
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select MFD_CORE
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select REGMAP_I2C
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help
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Say yes here to add support for the Ricoh RN5T618 PMIC. This
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driver provides common support for accessing the device,
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additional drivers must be enabled in order to use the
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functionality of the device.
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config MFD_SEC_CORE
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bool "SAMSUNG Electronics PMIC Series Support"
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depends on I2C=y
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@ -160,6 +160,7 @@ obj-$(CONFIG_MFD_INTEL_MSIC) += intel_msic.o
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obj-$(CONFIG_MFD_PALMAS) += palmas.o
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obj-$(CONFIG_MFD_VIPERBOARD) += viperboard.o
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obj-$(CONFIG_MFD_RC5T583) += rc5t583.o rc5t583-irq.o
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obj-$(CONFIG_MFD_RN5T618) += rn5t618.o
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obj-$(CONFIG_MFD_SEC_CORE) += sec-core.o sec-irq.o
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obj-$(CONFIG_MFD_SYSCON) += syscon.o
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obj-$(CONFIG_MFD_LM3533) += lm3533-core.o lm3533-ctrlbank.o
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134
drivers/mfd/rn5t618.c
Normal file
134
drivers/mfd/rn5t618.c
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@ -0,0 +1,134 @@
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/*
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* MFD core driver for Ricoh RN5T618 PMIC
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*
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* Copyright (C) 2014 Beniamino Galvani <b.galvani@gmail.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <linux/i2c.h>
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#include <linux/mfd/core.h>
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#include <linux/mfd/rn5t618.h>
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#include <linux/module.h>
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#include <linux/regmap.h>
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static const struct mfd_cell rn5t618_cells[] = {
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{ .name = "rn5t618-regulator" },
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{ .name = "rn5t618-wdt" },
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};
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static bool rn5t618_volatile_reg(struct device *dev, unsigned int reg)
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{
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switch (reg) {
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case RN5T618_WATCHDOGCNT:
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case RN5T618_DCIRQ:
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case RN5T618_ILIMDATAH ... RN5T618_AIN0DATAL:
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case RN5T618_IR_ADC1 ... RN5T618_IR_ADC3:
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case RN5T618_IR_GPR:
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case RN5T618_IR_GPF:
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case RN5T618_MON_IOIN:
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case RN5T618_INTMON:
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return true;
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default:
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return false;
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}
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}
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static const struct regmap_config rn5t618_regmap_config = {
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.reg_bits = 8,
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.val_bits = 8,
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.volatile_reg = rn5t618_volatile_reg,
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.max_register = RN5T618_MAX_REG,
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.cache_type = REGCACHE_RBTREE,
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};
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static struct rn5t618 *rn5t618_pm_power_off;
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static void rn5t618_power_off(void)
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{
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/* disable automatic repower-on */
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regmap_update_bits(rn5t618_pm_power_off->regmap, RN5T618_REPCNT,
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RN5T618_REPCNT_REPWRON, 0);
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/* start power-off sequence */
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regmap_update_bits(rn5t618_pm_power_off->regmap, RN5T618_SLPCNT,
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RN5T618_SLPCNT_SWPWROFF, RN5T618_SLPCNT_SWPWROFF);
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}
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static int rn5t618_i2c_probe(struct i2c_client *i2c,
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const struct i2c_device_id *id)
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{
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struct rn5t618 *priv;
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int ret;
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priv = devm_kzalloc(&i2c->dev, sizeof(*priv), GFP_KERNEL);
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if (!priv)
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return -ENOMEM;
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i2c_set_clientdata(i2c, priv);
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priv->regmap = devm_regmap_init_i2c(i2c, &rn5t618_regmap_config);
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if (IS_ERR(priv->regmap)) {
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ret = PTR_ERR(priv->regmap);
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dev_err(&i2c->dev, "regmap init failed: %d\n", ret);
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return ret;
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}
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ret = mfd_add_devices(&i2c->dev, -1, rn5t618_cells,
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ARRAY_SIZE(rn5t618_cells), NULL, 0, NULL);
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if (ret) {
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dev_err(&i2c->dev, "failed to add sub-devices: %d\n", ret);
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return ret;
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}
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if (!pm_power_off) {
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rn5t618_pm_power_off = priv;
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pm_power_off = rn5t618_power_off;
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}
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return 0;
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}
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static int rn5t618_i2c_remove(struct i2c_client *i2c)
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{
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struct rn5t618 *priv = i2c_get_clientdata(i2c);
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if (priv == rn5t618_pm_power_off) {
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rn5t618_pm_power_off = NULL;
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pm_power_off = NULL;
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}
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mfd_remove_devices(&i2c->dev);
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return 0;
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}
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static const struct of_device_id rn5t618_of_match[] = {
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{ .compatible = "ricoh,rn5t618" },
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{ }
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};
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MODULE_DEVICE_TABLE(of, rn5t618_of_match);
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static const struct i2c_device_id rn5t618_i2c_id[] = {
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{ }
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};
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MODULE_DEVICE_TABLE(i2c, rn5t618_i2c_id);
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static struct i2c_driver rn5t618_i2c_driver = {
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.driver = {
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.name = "rn5t618",
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.of_match_table = of_match_ptr(rn5t618_of_match),
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},
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.probe = rn5t618_i2c_probe,
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.remove = rn5t618_i2c_remove,
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.id_table = rn5t618_i2c_id,
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};
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module_i2c_driver(rn5t618_i2c_driver);
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MODULE_AUTHOR("Beniamino Galvani <b.galvani@gmail.com>");
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MODULE_DESCRIPTION("Ricoh RN5T618 MFD driver");
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MODULE_LICENSE("GPL v2");
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228
include/linux/mfd/rn5t618.h
Normal file
228
include/linux/mfd/rn5t618.h
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@ -0,0 +1,228 @@
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/*
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* MFD core driver for Ricoh RN5T618 PMIC
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*
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* Copyright (C) 2014 Beniamino Galvani <b.galvani@gmail.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __LINUX_MFD_RN5T618_H
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#define __LINUX_MFD_RN5T618_H
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#include <linux/regmap.h>
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#define RN5T618_LSIVER 0x00
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#define RN5T618_OTPVER 0x01
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#define RN5T618_IODAC 0x02
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#define RN5T618_VINDAC 0x03
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#define RN5T618_CPUCNT 0x06
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#define RN5T618_PSWR 0x07
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#define RN5T618_PONHIS 0x09
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#define RN5T618_POFFHIS 0x0a
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#define RN5T618_WATCHDOG 0x0b
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#define RN5T618_WATCHDOGCNT 0x0c
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#define RN5T618_PWRFUNC 0x0d
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#define RN5T618_SLPCNT 0x0e
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#define RN5T618_REPCNT 0x0f
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#define RN5T618_PWRONTIMSET 0x10
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#define RN5T618_NOETIMSETCNT 0x11
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#define RN5T618_PWRIREN 0x12
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#define RN5T618_PWRIRQ 0x13
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#define RN5T618_PWRMON 0x14
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#define RN5T618_PWRIRSEL 0x15
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#define RN5T618_DC1_SLOT 0x16
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#define RN5T618_DC2_SLOT 0x17
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#define RN5T618_DC3_SLOT 0x18
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#define RN5T618_LDO1_SLOT 0x1b
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#define RN5T618_LDO2_SLOT 0x1c
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#define RN5T618_LDO3_SLOT 0x1d
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#define RN5T618_LDO4_SLOT 0x1e
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#define RN5T618_LDO5_SLOT 0x1f
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#define RN5T618_PSO0_SLOT 0x25
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#define RN5T618_PSO1_SLOT 0x26
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#define RN5T618_PSO2_SLOT 0x27
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#define RN5T618_PSO3_SLOT 0x28
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#define RN5T618_LDORTC1_SLOT 0x2a
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#define RN5T618_DC1CTL 0x2c
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#define RN5T618_DC1CTL2 0x2d
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#define RN5T618_DC2CTL 0x2e
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#define RN5T618_DC2CTL2 0x2f
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#define RN5T618_DC3CTL 0x30
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#define RN5T618_DC3CTL2 0x31
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#define RN5T618_DC1DAC 0x36
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#define RN5T618_DC2DAC 0x37
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#define RN5T618_DC3DAC 0x38
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#define RN5T618_DC1DAC_SLP 0x3b
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#define RN5T618_DC2DAC_SLP 0x3c
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#define RN5T618_DC3DAC_SLP 0x3d
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#define RN5T618_DCIREN 0x40
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#define RN5T618_DCIRQ 0x41
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#define RN5T618_DCIRMON 0x42
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#define RN5T618_LDOEN1 0x44
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#define RN5T618_LDOEN2 0x45
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#define RN5T618_LDODIS 0x46
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#define RN5T618_LDO1DAC 0x4c
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#define RN5T618_LDO2DAC 0x4d
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#define RN5T618_LDO3DAC 0x4e
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#define RN5T618_LDO4DAC 0x4f
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#define RN5T618_LDO5DAC 0x50
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#define RN5T618_LDORTCDAC 0x56
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#define RN5T618_LDORTC2DAC 0x57
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#define RN5T618_LDO1DAC_SLP 0x58
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#define RN5T618_LDO2DAC_SLP 0x59
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#define RN5T618_LDO3DAC_SLP 0x5a
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#define RN5T618_LDO4DAC_SLP 0x5b
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#define RN5T618_LDO5DAC_SLP 0x5c
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#define RN5T618_ADCCNT1 0x64
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#define RN5T618_ADCCNT2 0x65
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#define RN5T618_ADCCNT3 0x66
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#define RN5T618_ILIMDATAH 0x68
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#define RN5T618_ILIMDATAL 0x69
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#define RN5T618_VBATDATAH 0x6a
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#define RN5T618_VBATDATAL 0x6b
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#define RN5T618_VADPDATAH 0x6c
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#define RN5T618_VADPDATAL 0x6d
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#define RN5T618_VUSBDATAH 0x6e
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#define RN5T618_VUSBDATAL 0x6f
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#define RN5T618_VSYSDATAH 0x70
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#define RN5T618_VSYSDATAL 0x71
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#define RN5T618_VTHMDATAH 0x72
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#define RN5T618_VTHMDATAL 0x73
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#define RN5T618_AIN1DATAH 0x74
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#define RN5T618_AIN1DATAL 0x75
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#define RN5T618_AIN0DATAH 0x76
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#define RN5T618_AIN0DATAL 0x77
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#define RN5T618_ILIMTHL 0x78
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#define RN5T618_ILIMTHH 0x79
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#define RN5T618_VBATTHL 0x7a
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#define RN5T618_VBATTHH 0x7b
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#define RN5T618_VADPTHL 0x7c
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#define RN5T618_VADPTHH 0x7d
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#define RN5T618_VUSBTHL 0x7e
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#define RN5T618_VUSBTHH 0x7f
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#define RN5T618_VSYSTHL 0x80
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#define RN5T618_VSYSTHH 0x81
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#define RN5T618_VTHMTHL 0x82
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#define RN5T618_VTHMTHH 0x83
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#define RN5T618_AIN1THL 0x84
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#define RN5T618_AIN1THH 0x85
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#define RN5T618_AIN0THL 0x86
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#define RN5T618_AIN0THH 0x87
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#define RN5T618_EN_ADCIR1 0x88
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#define RN5T618_EN_ADCIR2 0x89
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#define RN5T618_EN_ADCIR3 0x8a
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#define RN5T618_IR_ADC1 0x8c
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#define RN5T618_IR_ADC2 0x8d
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#define RN5T618_IR_ADC3 0x8e
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#define RN5T618_IOSEL 0x90
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#define RN5T618_IOOUT 0x91
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#define RN5T618_GPEDGE1 0x92
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#define RN5T618_GPEDGE2 0x93
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#define RN5T618_EN_GPIR 0x94
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#define RN5T618_IR_GPR 0x95
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#define RN5T618_IR_GPF 0x96
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#define RN5T618_MON_IOIN 0x97
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#define RN5T618_GPLED_FUNC 0x98
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#define RN5T618_INTPOL 0x9c
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#define RN5T618_INTEN 0x9d
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#define RN5T618_INTMON 0x9e
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#define RN5T618_PREVINDAC 0xb0
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#define RN5T618_BATDAC 0xb1
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#define RN5T618_CHGCTL1 0xb3
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#define RN5T618_CHGCTL2 0xb4
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#define RN5T618_VSYSSET 0xb5
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#define RN5T618_REGISET1 0xb6
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#define RN5T618_REGISET2 0xb7
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#define RN5T618_CHGISET 0xb8
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#define RN5T618_TIMSET 0xb9
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#define RN5T618_BATSET1 0xba
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#define RN5T618_BATSET2 0xbb
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#define RN5T618_DIESET 0xbc
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#define RN5T618_CHGSTATE 0xbd
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#define RN5T618_CHGCTRL_IRFMASK 0xbe
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#define RN5T618_CHGSTAT_IRFMASK1 0xbf
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#define RN5T618_CHGSTAT_IRFMASK2 0xc0
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#define RN5T618_CHGERR_IRFMASK 0xc1
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#define RN5T618_CHGCTRL_IRR 0xc2
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#define RN5T618_CHGSTAT_IRR1 0xc3
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#define RN5T618_CHGSTAT_IRR2 0xc4
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#define RN5T618_CHGERR_IRR 0xc5
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#define RN5T618_CHGCTRL_MONI 0xc6
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#define RN5T618_CHGSTAT_MONI1 0xc7
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#define RN5T618_CHGSTAT_MONI2 0xc8
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#define RN5T618_CHGERR_MONI 0xc9
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#define RN5T618_CHGCTRL_DETMOD1 0xca
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#define RN5T618_CHGCTRL_DETMOD2 0xcb
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#define RN5T618_CHGSTAT_DETMOD1 0xcc
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#define RN5T618_CHGSTAT_DETMOD2 0xcd
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#define RN5T618_CHGSTAT_DETMOD3 0xce
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#define RN5T618_CHGERR_DETMOD1 0xcf
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#define RN5T618_CHGERR_DETMOD2 0xd0
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#define RN5T618_CHGOSCCTL 0xd4
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#define RN5T618_CHGOSCSCORESET1 0xd5
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#define RN5T618_CHGOSCSCORESET2 0xd6
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#define RN5T618_CHGOSCSCORESET3 0xd7
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#define RN5T618_CHGOSCFREQSET1 0xd8
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#define RN5T618_CHGOSCFREQSET2 0xd9
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#define RN5T618_CONTROL 0xe0
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#define RN5T618_SOC 0xe1
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#define RN5T618_RE_CAP_H 0xe2
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#define RN5T618_RE_CAP_L 0xe3
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#define RN5T618_FA_CAP_H 0xe4
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#define RN5T618_FA_CAP_L 0xe5
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#define RN5T618_AGE 0xe6
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#define RN5T618_TT_EMPTY_H 0xe7
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#define RN5T618_TT_EMPTY_L 0xe8
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#define RN5T618_TT_FULL_H 0xe9
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#define RN5T618_TT_FULL_L 0xea
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#define RN5T618_VOLTAGE_1 0xeb
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#define RN5T618_VOLTAGE_0 0xec
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#define RN5T618_TEMP_1 0xed
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#define RN5T618_TEMP_0 0xee
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#define RN5T618_CC_CTRL 0xef
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#define RN5T618_CC_COUNT2 0xf0
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#define RN5T618_CC_COUNT1 0xf1
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#define RN5T618_CC_COUNT0 0xf2
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#define RN5T618_CC_SUMREG3 0xf3
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#define RN5T618_CC_SUMREG2 0xf4
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#define RN5T618_CC_SUMREG1 0xf5
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#define RN5T618_CC_SUMREG0 0xf6
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#define RN5T618_CC_OFFREG1 0xf7
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#define RN5T618_CC_OFFREG0 0xf8
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#define RN5T618_CC_GAINREG1 0xf9
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#define RN5T618_CC_GAINREG0 0xfa
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#define RN5T618_CC_AVEREG1 0xfb
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#define RN5T618_CC_AVEREG0 0xfc
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#define RN5T618_MAX_REG 0xfc
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#define RN5T618_REPCNT_REPWRON BIT(0)
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#define RN5T618_SLPCNT_SWPWROFF BIT(0)
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#define RN5T618_WATCHDOG_WDOGEN BIT(2)
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#define RN5T618_WATCHDOG_WDOGTIM_M (BIT(0) | BIT(1))
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#define RN5T618_WATCHDOG_WDOGTIM_S 0
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#define RN5T618_PWRIRQ_IR_WDOG BIT(6)
|
||||
|
||||
enum {
|
||||
RN5T618_DCDC1,
|
||||
RN5T618_DCDC2,
|
||||
RN5T618_DCDC3,
|
||||
RN5T618_LDO1,
|
||||
RN5T618_LDO2,
|
||||
RN5T618_LDO3,
|
||||
RN5T618_LDO4,
|
||||
RN5T618_LDO5,
|
||||
RN5T618_LDORTC1,
|
||||
RN5T618_LDORTC2,
|
||||
RN5T618_REG_NUM,
|
||||
};
|
||||
|
||||
struct rn5t618 {
|
||||
struct regmap *regmap;
|
||||
};
|
||||
|
||||
#endif /* __LINUX_MFD_RN5T618_H */
|
||||
Loading…
Reference in New Issue
Block a user