| Message ID | 20250108-starqltechn_integration_upstream-v14-8-f6e84ec20d96@gmail.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | Add support for Maxim Integrated MAX77705 PMIC | expand |
On Wed, 08 Jan 2025, Dzmitry Sankouski wrote: > Add the core MFD driver for max77705 PMIC. Drivers for sub-devices > will be added in subsequent patches. > > Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com> > > --- > Changes for v12: > - remove fuelgauge support (it's moved to simple-mfd-i2c, to reflect > the fact it's a separate device with it's own i2c client) > - remove unneeded ending comma > - remove struct dev_pm_ops because defined by DEFINE_SIMPLE_DEV_PM_OPS > - Kconfig: select MFD_SIMPLE_MFD_I2C > > Changes for v10: > - never blank line between call and its error check > - remove unnecessary line wrap > - revert wrong changes in max77693-common.h > - move max77705_pm_ops from header to c file > - fail probe, when fuelgauge is not found in sub device list > - remove fuelgauge compatible, because with compatible, > platform matches using compatible, and platform_device > id_entry is empty. With no compatible, platform matches > by device id, and id_entry is populated. > - use dev_err_probe for error handling > > Changes for v9: > - use max17042 as fuel gauge chip > - initialize max17042 i2c dummy device in mfd device, > because bus can be used for reading additional values, > not related to fuelgauge, like chip input current, system > bus current > - fix pmic_rev kernel test robot error > > Changes for v8: > - fix comment style C++ -> C > - remove unused pmic_ver > > Changes for v6: > - add PMIC suffix in Kconfig > - remove filename from file header > - reorder headers alphabetically > - move out fg and chg adresses definitions > - rename led name and compatible > - remove overbracketing > - move charger and fuel gauge i2c initialization > to their drivers > - fix max77705_i2c_driver tabbing > - formatting fixes > Changes for v5: > - license change to 2.0 > - use same hardware name in Kconfig and module descriptions > Changes for v4: > - rework driver from scratch > - migrate to regmap_add_irq_chip, remove max77705-irq.c, > rename max77705-core.c to max77705.c > - cleanup headers > - remove debugfs code > - migrate to use max77693_dev structure > - remove max77705.h > --- > MAINTAINERS | 2 ++ > drivers/mfd/Kconfig | 13 +++++++++ > drivers/mfd/Makefile | 2 ++ > drivers/mfd/max77705.c | 209 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > include/linux/mfd/max77693-common.h | 4 ++- > include/linux/mfd/max77705-private.h | 178 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > 6 files changed, 407 insertions(+), 1 deletion(-) > > diff --git a/MAINTAINERS b/MAINTAINERS > index 98a77dece2f1..eb5222a833f8 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -14294,6 +14294,7 @@ F: drivers/*/*max77843.c > F: drivers/*/max14577*.c > F: drivers/*/max77686*.c > F: drivers/*/max77693*.c > +F: drivers/*/max77705*.c > F: drivers/clk/clk-max77686.c > F: drivers/extcon/extcon-max14577.c > F: drivers/extcon/extcon-max77693.c > @@ -14301,6 +14302,7 @@ F: drivers/rtc/rtc-max77686.c > F: include/linux/mfd/max14577*.h > F: include/linux/mfd/max77686*.h > F: include/linux/mfd/max77693*.h > +F: include/linux/mfd/max77705*.h > > MAXIRADIO FM RADIO RECEIVER DRIVER > M: Hans Verkuil <hverkuil@xs4all.nl> > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig > index 6b0682af6e32..5064b1b42f76 100644 > --- a/drivers/mfd/Kconfig > +++ b/drivers/mfd/Kconfig > @@ -916,6 +916,19 @@ config MFD_MAX77693 > additional drivers must be enabled in order to use the functionality > of the device. > > +config MFD_MAX77705 > + tristate "Maxim MAX77705 PMIC Support" > + depends on I2C > + select MFD_CORE > + select MFD_SIMPLE_MFD_I2C > + help > + Say yes here to add support for Maxim Integrated MAX77705 PMIC. > + This is a Power Management IC with Charger, safe LDOs, Flash, Haptic > + and MUIC controls on chip. > + This driver provides common support for accessing the device; > + additional drivers must be enabled in order to use the functionality > + of the device. > + > config MFD_MAX77714 > tristate "Maxim Semiconductor MAX77714 PMIC Support" > depends on I2C > diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile > index 9220eaf7cf12..c18bb5a57734 100644 > --- a/drivers/mfd/Makefile > +++ b/drivers/mfd/Makefile > @@ -168,6 +168,7 @@ obj-$(CONFIG_MFD_MAX77620) += max77620.o > obj-$(CONFIG_MFD_MAX77650) += max77650.o > obj-$(CONFIG_MFD_MAX77686) += max77686.o > obj-$(CONFIG_MFD_MAX77693) += max77693.o > +obj-$(CONFIG_MFD_MAX77705) += max77705.o > obj-$(CONFIG_MFD_MAX77714) += max77714.o > obj-$(CONFIG_MFD_MAX77843) += max77843.o > obj-$(CONFIG_MFD_MAX8907) += max8907.o > @@ -233,6 +234,7 @@ obj-$(CONFIG_MFD_RK8XX_I2C) += rk8xx-i2c.o > obj-$(CONFIG_MFD_RK8XX_SPI) += rk8xx-spi.o > obj-$(CONFIG_MFD_RN5T618) += rn5t618.o > obj-$(CONFIG_MFD_SEC_CORE) += sec-core.o sec-irq.o > +obj-$(CONFIG_MFD_S2DOS05) += s2dos05.o > obj-$(CONFIG_MFD_SYSCON) += syscon.o > obj-$(CONFIG_MFD_LM3533) += lm3533-core.o lm3533-ctrlbank.o > obj-$(CONFIG_MFD_VEXPRESS_SYSREG) += vexpress-sysreg.o > diff --git a/drivers/mfd/max77705.c b/drivers/mfd/max77705.c > new file mode 100644 > index 000000000000..18d344620755 > --- /dev/null > +++ b/drivers/mfd/max77705.c > @@ -0,0 +1,209 @@ > +// SPDX-License-Identifier: GPL-2.0+ > +// Only the SPDX should have C++ style comments. > +// Maxim MAX77705 PMIC core driver > +// > +// Copyright (C) 2024 Dzmitry Sankouski <dsankouski@gmail.com> Update the date when you resubmit. > +#include <linux/i2c.h> > +#include <linux/interrupt.h> > +#include <linux/mfd/core.h> > +#include <linux/mfd/max77705-private.h> > +#include <linux/mfd/max77693-common.h> > +#include <linux/pm.h> > +#include <linux/power/max17042_battery.h> > +#include <linux/module.h> > +#include <linux/regmap.h> > +#include <linux/of.h> > + > +static struct mfd_cell max77705_devs[] = { > + { > + .name = "max77705-rgb", > + .of_compatible = "maxim,max77705-rgb", > + }, > + { > + .name = "max77705-charger", > + .of_compatible = "maxim,max77705-charger", > + }, > + { > + .name = "max77705-haptic", > + .of_compatible = "maxim,max77705-haptic", > + }, > +}; Use MFD_CELL_OF() > +static const struct regmap_range max77705_readable_ranges[] = { > + regmap_reg_range(MAX77705_PMIC_REG_PMICID1, MAX77705_PMIC_REG_BSTOUT_MASK), > + regmap_reg_range(MAX77705_PMIC_REG_INTSRC, MAX77705_PMIC_REG_RESERVED_29), > + regmap_reg_range(MAX77705_PMIC_REG_BOOSTCONTROL1, MAX77705_PMIC_REG_BOOSTCONTROL1), > + regmap_reg_range(MAX77705_PMIC_REG_MCONFIG, MAX77705_PMIC_REG_MCONFIG2), > + regmap_reg_range(MAX77705_PMIC_REG_FORCE_EN_MASK, MAX77705_PMIC_REG_FORCE_EN_MASK), > + regmap_reg_range(MAX77705_PMIC_REG_BOOSTCONTROL1, MAX77705_PMIC_REG_BOOSTCONTROL1), > + regmap_reg_range(MAX77705_PMIC_REG_BOOSTCONTROL2, MAX77705_PMIC_REG_BOOSTCONTROL2), > + regmap_reg_range(MAX77705_PMIC_REG_SW_RESET, MAX77705_PMIC_REG_USBC_RESET), > +}; > + > +static const struct regmap_range max77705_writable_ranges[] = { > + regmap_reg_range(MAX77705_PMIC_REG_MAINCTRL1, MAX77705_PMIC_REG_BSTOUT_MASK), > + regmap_reg_range(MAX77705_PMIC_REG_INTSRC, MAX77705_PMIC_REG_RESERVED_29), > + regmap_reg_range(MAX77705_PMIC_REG_BOOSTCONTROL1, MAX77705_PMIC_REG_BOOSTCONTROL1), > + regmap_reg_range(MAX77705_PMIC_REG_MCONFIG, MAX77705_PMIC_REG_MCONFIG2), > + regmap_reg_range(MAX77705_PMIC_REG_FORCE_EN_MASK, MAX77705_PMIC_REG_FORCE_EN_MASK), > + regmap_reg_range(MAX77705_PMIC_REG_BOOSTCONTROL1, MAX77705_PMIC_REG_BOOSTCONTROL1), > + regmap_reg_range(MAX77705_PMIC_REG_BOOSTCONTROL2, MAX77705_PMIC_REG_BOOSTCONTROL2), > + regmap_reg_range(MAX77705_PMIC_REG_SW_RESET, MAX77705_PMIC_REG_USBC_RESET), > + Remove this line. > +}; > + > +static const struct regmap_access_table max77705_readable_table = { > + .yes_ranges = max77705_readable_ranges, > + .n_yes_ranges = ARRAY_SIZE(max77705_readable_ranges), > +}; > + > +static const struct regmap_access_table max77705_writable_table = { > + .yes_ranges = max77705_writable_ranges, > + .n_yes_ranges = ARRAY_SIZE(max77705_writable_ranges), > +}; > + > +static const struct regmap_config max77705_regmap_config = { > + .reg_bits = 8, > + .val_bits = 8, > + .rd_table = &max77705_readable_table, > + .wr_table = &max77705_writable_table, > + .max_register = MAX77705_PMIC_REG_USBC_RESET, > +}; > + > +static const struct regmap_config max77705_leds_regmap_config = { > + .reg_base = MAX77705_RGBLED_REG_BASE, > + .reg_bits = 8, > + .val_bits = 8, > + .max_register = MAX77705_LED_REG_END, > +}; > + > +static const struct regmap_irq max77705_topsys_irqs[] = { > + { .mask = MAX77705_SYSTEM_IRQ_BSTEN_INT, }, > + { .mask = MAX77705_SYSTEM_IRQ_SYSUVLO_INT, }, > + { .mask = MAX77705_SYSTEM_IRQ_SYSOVLO_INT, }, > + { .mask = MAX77705_SYSTEM_IRQ_TSHDN_INT, }, > + { .mask = MAX77705_SYSTEM_IRQ_TM_INT, }, Remove the double spaces. > +}; > + > +static const struct regmap_irq_chip max77705_topsys_irq_chip = { > + .name = "max77705-topsys", > + .status_base = MAX77705_PMIC_REG_SYSTEM_INT, > + .mask_base = MAX77705_PMIC_REG_SYSTEM_INT_MASK, > + .num_regs = 1, > + .irqs = max77705_topsys_irqs, > + .num_irqs = ARRAY_SIZE(max77705_topsys_irqs), Remove the superfluous tab. > +}; > + > +static int max77705_i2c_probe(struct i2c_client *i2c) > +{ > + struct max77693_dev *max77705; > + struct regmap_irq_chip_data *irq_data; > + struct irq_domain *domain; > + int ret; > + unsigned int pmic_rev_value; > + enum max77705_hw_rev pmic_rev; Please reorder these. At the very least, put ret at the bottom. > + > + max77705 = devm_kzalloc(&i2c->dev, sizeof(*max77705), GFP_KERNEL); > + if (!max77705) > + return -ENOMEM; > + > + max77705->i2c = i2c; > + max77705->dev = &i2c->dev; > + max77705->irq = i2c->irq; If you're saving i2c, you can derive the other two. > + max77705->type = TYPE_MAX77705; > + i2c_set_clientdata(i2c, max77705); > + > + max77705->regmap = devm_regmap_init_i2c(i2c, &max77705_regmap_config); > + if (IS_ERR(max77705->regmap)) > + return PTR_ERR(max77705->regmap); > + > + if (regmap_read(max77705->regmap, MAX77705_PMIC_REG_PMICREV, &pmic_rev_value) < 0) Take the function all out of the if statement please. > + return -ENODEV; > + > + pmic_rev = pmic_rev_value & MAX77705_REVISION_MASK; > + if (pmic_rev != MAX77705_PASS3) > + return dev_err_probe(max77705->dev, -ENODEV, Place dev into a local variable and save yourself lots of chars each time. > + "Rev.0x%x is not tested\n", pmic_rev); Use up to 100-chars to neaten this up. > + > + max77705->regmap_leds = devm_regmap_init_i2c(i2c, &max77705_leds_regmap_config); Why not create this in the LEDs driver? > + if (IS_ERR(max77705->regmap_leds)) > + return dev_err_probe(max77705->dev, PTR_ERR(max77705->regmap_leds), > + "Failed to register leds regmap\n"); LEDs > + ret = devm_regmap_add_irq_chip(max77705->dev, max77705->regmap, > + max77705->irq, > + IRQF_ONESHOT | IRQF_SHARED, 0, > + &max77705_topsys_irq_chip, > + &irq_data); > + if (ret) > + return dev_err_probe(max77705->dev, ret, "Failed to add irq chip\n"); IRQ > + > + /* Unmask interrupts from all blocks in interrupt source register */ > + ret = regmap_update_bits(max77705->regmap, > + MAX77705_PMIC_REG_INTSRC_MASK, > + MAX77705_SRC_IRQ_ALL, (unsigned int)~MAX77705_SRC_IRQ_ALL); I don't see this much. Are you sure the cast is required? > + if (ret < 0) > + return dev_err_probe(max77705->dev, ret, > + "Could not unmask interrupts in INTSRC\n"); > + > + domain = regmap_irq_get_domain(irq_data); > + > + ret = devm_mfd_add_devices(max77705->dev, PLATFORM_DEVID_NONE, > + max77705_devs, ARRAY_SIZE(max77705_devs), > + NULL, 0, domain); > + if (ret) > + return dev_err_probe(max77705->dev, ret, "Failed to register child devices\n"); > + > + device_init_wakeup(max77705->dev, true); > + > + return 0; > +} > + > +static int max77705_suspend(struct device *dev) > +{ > + struct i2c_client *i2c = to_i2c_client(dev); > + struct max77693_dev *max77705 = i2c_get_clientdata(i2c); You're given a `struct device` use that instead of converting. > + > + disable_irq(max77705->irq); > + > + if (device_may_wakeup(dev)) > + enable_irq_wake(max77705->irq); > + > + return 0; > +} > + > +static int max77705_resume(struct device *dev) > +{ > + struct i2c_client *i2c = to_i2c_client(dev); > + struct max77693_dev *max77705 = i2c_get_clientdata(i2c); > + > + if (device_may_wakeup(dev)) > + disable_irq_wake(max77705->irq); > + > + enable_irq(max77705->irq); > + > + return 0; > +} > +DEFINE_SIMPLE_DEV_PM_OPS(max77705_pm_ops, max77705_suspend, max77705_resume); > + > +static const struct of_device_id max77705_i2c_of_match[] = { > + { .compatible = "maxim,max77705" }, > + { } > +}; > +MODULE_DEVICE_TABLE(of, max77705_i2c_of_match); > + > +static struct i2c_driver max77705_i2c_driver = { > + .driver = { > + .name = "max77705", > + .of_match_table = max77705_i2c_of_match, > + .pm = pm_sleep_ptr(&max77705_pm_ops), > + .suppress_bind_attrs = true, > + }, > + .probe = max77705_i2c_probe > +}; > +module_i2c_driver(max77705_i2c_driver); > + > +MODULE_DESCRIPTION("Maxim MAX77705 PMIC core driver"); > +MODULE_AUTHOR("Dzmitry Sankouski <dsankouski@gmail.com>"); > +MODULE_LICENSE("GPL"); > diff --git a/include/linux/mfd/max77693-common.h b/include/linux/mfd/max77693-common.h > index a5bce099f1ed..ec2e1b2dceb8 100644 > --- a/include/linux/mfd/max77693-common.h > +++ b/include/linux/mfd/max77693-common.h > @@ -1,6 +1,6 @@ > /* SPDX-License-Identifier: GPL-2.0+ */ > /* > - * Common data shared between Maxim 77693 and 77843 drivers > + * Common data shared between Maxim 77693, 77705 and 77843 drivers > * > * Copyright (C) 2015 Samsung Electronics > */ > @@ -11,6 +11,7 @@ > enum max77693_types { > TYPE_MAX77693_UNKNOWN, > TYPE_MAX77693, > + TYPE_MAX77705, > TYPE_MAX77843, > > TYPE_MAX77693_NUM, > @@ -32,6 +33,7 @@ struct max77693_dev { > struct regmap *regmap_muic; > struct regmap *regmap_haptic; /* Only MAX77693 */ > struct regmap *regmap_chg; /* Only MAX77843 */ > + struct regmap *regmap_leds; /* Only MAX77705 */ > > struct regmap_irq_chip_data *irq_data_led; > struct regmap_irq_chip_data *irq_data_topsys; > diff --git a/include/linux/mfd/max77705-private.h b/include/linux/mfd/max77705-private.h > new file mode 100644 > index 000000000000..e4309d3b6f2a > --- /dev/null > +++ b/include/linux/mfd/max77705-private.h > @@ -0,0 +1,178 @@ > +/* SPDX-License-Identifier: GPL-2.0 */ > +/* > + * Maxim MAX77705 definitions. > + * > + * Copyright (C) 2015 Samsung Electronics, Inc. > + * Copyright (C) 2024 Dzmitry Sankouski <dsankouski@gmail.com> > + */ > + > +#ifndef __LINUX_MFD_MAX77705_PRIV_H > +#define __LINUX_MFD_MAX77705_PRIV_H > + > +#define MAX77705_SRC_IRQ_CHG BIT(0) > +#define MAX77705_SRC_IRQ_TOP BIT(1) > +#define MAX77705_SRC_IRQ_FG BIT(2) > +#define MAX77705_SRC_IRQ_USBC BIT(3) > +#define MAX77705_SRC_IRQ_ALL (MAX77705_SRC_IRQ_CHG | MAX77705_SRC_IRQ_TOP | \ > + MAX77705_SRC_IRQ_FG | MAX77705_SRC_IRQ_USBC) > + > +/* MAX77705_PMIC_REG_PMICREV register */ > +#define MAX77705_VERSION_SHIFT 3 > +#define MAX77705_REVISION_MASK GENMASK(2, 0) > +#define MAX77705_VERSION_MASK GENMASK(7, MAX77705_VERSION_SHIFT) > +/* MAX77705_PMIC_REG_MAINCTRL1 register */ > +#define MAX77705_MAINCTRL1_BIASEN_SHIFT 7 > +#define MAX77705_MAINCTRL1_BIASEN_MASK BIT(MAX77705_MAINCTRL1_BIASEN_SHIFT) > +/* MAX77705_PMIC_REG_MCONFIG2 (haptics) register */ > +#define MAX77705_CONFIG2_MEN_SHIFT 6 > +#define MAX77705_CONFIG2_MODE_SHIFT 7 > +#define MAX77705_CONFIG2_HTYP_SHIFT 5 > +/* MAX77705_PMIC_REG_SYSTEM_INT_MASK register */ > +#define MAX77705_SYSTEM_IRQ_BSTEN_INT BIT(3) > +#define MAX77705_SYSTEM_IRQ_SYSUVLO_INT BIT(4) > +#define MAX77705_SYSTEM_IRQ_SYSOVLO_INT BIT(5) > +#define MAX77705_SYSTEM_IRQ_TSHDN_INT BIT(6) > +#define MAX77705_SYSTEM_IRQ_TM_INT BIT(7) > + > +enum max77705_hw_rev { > + MAX77705_PASS1 = 1, > + MAX77705_PASS2, > + MAX77705_PASS3 > +}; > + > +enum max77705_reg { > + MAX77705_PMIC_REG_PMICID1 = 0x00, > + MAX77705_PMIC_REG_PMICREV = 0x01, > + MAX77705_PMIC_REG_MAINCTRL1 = 0x02, > + MAX77705_PMIC_REG_BSTOUT_MASK = 0x03, > + MAX77705_PMIC_REG_FORCE_EN_MASK = 0x08, > + MAX77705_PMIC_REG_MCONFIG = 0x10, > + MAX77705_PMIC_REG_MCONFIG2 = 0x11, > + MAX77705_PMIC_REG_INTSRC = 0x22, > + MAX77705_PMIC_REG_INTSRC_MASK = 0x23, > + MAX77705_PMIC_REG_SYSTEM_INT = 0x24, > + MAX77705_PMIC_REG_RESERVED_25 = 0x25, > + MAX77705_PMIC_REG_SYSTEM_INT_MASK = 0x26, > + MAX77705_PMIC_REG_RESERVED_27 = 0x27, > + MAX77705_PMIC_REG_RESERVED_28 = 0x28, > + MAX77705_PMIC_REG_RESERVED_29 = 0x29, > + MAX77705_PMIC_REG_BOOSTCONTROL1 = 0x4C, > + MAX77705_PMIC_REG_BOOSTCONTROL2 = 0x4F, > + MAX77705_PMIC_REG_SW_RESET = 0x50, > + MAX77705_PMIC_REG_USBC_RESET = 0x51, > + > + MAX77705_PMIC_REG_END > +}; > + > +enum max77705_chg_reg { > + MAX77705_CHG_REG_BASE = 0xB0, > + MAX77705_CHG_REG_INT = 0, > + MAX77705_CHG_REG_INT_MASK, > + MAX77705_CHG_REG_INT_OK, > + MAX77705_CHG_REG_DETAILS_00, > + MAX77705_CHG_REG_DETAILS_01, > + MAX77705_CHG_REG_DETAILS_02, > + MAX77705_CHG_REG_DTLS_03, > + MAX77705_CHG_REG_CNFG_00, > + MAX77705_CHG_REG_CNFG_01, > + MAX77705_CHG_REG_CNFG_02, > + MAX77705_CHG_REG_CNFG_03, > + MAX77705_CHG_REG_CNFG_04, > + MAX77705_CHG_REG_CNFG_05, > + MAX77705_CHG_REG_CNFG_06, > + MAX77705_CHG_REG_CNFG_07, > + MAX77705_CHG_REG_CNFG_08, > + MAX77705_CHG_REG_CNFG_09, > + MAX77705_CHG_REG_CNFG_10, > + MAX77705_CHG_REG_CNFG_11, > + > + MAX77705_CHG_REG_CNFG_12, > + MAX77705_CHG_REG_CNFG_13, > + MAX77705_CHG_REG_CNFG_14, > + MAX77705_CHG_REG_SAFEOUT_CTRL > +}; > + > +enum max77705_fuelgauge_reg { > + STATUS_REG = 0x00, > + VALRT_THRESHOLD_REG = 0x01, > + TALRT_THRESHOLD_REG = 0x02, > + SALRT_THRESHOLD_REG = 0x03, > + REMCAP_REP_REG = 0x05, > + SOCREP_REG = 0x06, > + TEMPERATURE_REG = 0x08, > + VCELL_REG = 0x09, > + TIME_TO_EMPTY_REG = 0x11, > + FULLSOCTHR_REG = 0x13, > + CURRENT_REG = 0x0A, > + AVG_CURRENT_REG = 0x0B, > + SOCMIX_REG = 0x0D, > + SOCAV_REG = 0x0E, > + REMCAP_MIX_REG = 0x0F, > + FULLCAP_REG = 0x10, > + RFAST_REG = 0x15, > + AVR_TEMPERATURE_REG = 0x16, > + CYCLES_REG = 0x17, > + DESIGNCAP_REG = 0x18, > + AVR_VCELL_REG = 0x19, > + TIME_TO_FULL_REG = 0x20, > + CONFIG_REG = 0x1D, > + ICHGTERM_REG = 0x1E, > + REMCAP_AV_REG = 0x1F, > + FULLCAP_NOM_REG = 0x23, > + LEARN_CFG_REG = 0x28, > + FILTER_CFG_REG = 0x29, > + MISCCFG_REG = 0x2B, > + QRTABLE20_REG = 0x32, > + FULLCAP_REP_REG = 0x35, > + RCOMP_REG = 0x38, > + VEMPTY_REG = 0x3A, > + FSTAT_REG = 0x3D, > + DISCHARGE_THRESHOLD_REG = 0x40, > + QRTABLE30_REG = 0x42, > + ISYS_REG = 0x43, > + DQACC_REG = 0x45, > + DPACC_REG = 0x46, > + AVGISYS_REG = 0x4B, > + QH_REG = 0x4D, > + VSYS_REG = 0xB1, > + TALRTTH2_REG = 0xB2, > + VBYP_REG = 0xB3, > + CONFIG2_REG = 0xBB, > + IIN_REG = 0xD0, > + OCV_REG = 0xEE, > + VFOCV_REG = 0xFB, > + VFSOC_REG = 0xFF, > + > + MAX77705_FG_END > +}; > + > +enum max77705_led_reg { > + MAX77705_RGBLED_REG_BASE = 0x30, > + MAX77705_RGBLED_REG_LEDEN = 0, > + MAX77705_RGBLED_REG_LED0BRT, > + MAX77705_RGBLED_REG_LED1BRT, > + MAX77705_RGBLED_REG_LED2BRT, > + MAX77705_RGBLED_REG_LED3BRT, > + MAX77705_RGBLED_REG_LEDRMP, > + MAX77705_RGBLED_REG_LEDBLNK, > + MAX77705_LED_REG_END > +}; > + > +enum max77705_charger_battery_state { > + MAX77705_BATTERY_NOBAT, > + MAX77705_BATTERY_PREQUALIFICATION, > + MAX77705_BATTERY_DEAD, > + MAX77705_BATTERY_GOOD, > + MAX77705_BATTERY_LOWVOLTAGE, > + MAX77705_BATTERY_OVERVOLTAGE, > + MAX77705_BATTERY_RESERVED > +}; > + > +enum max77705_charger_charge_type { > + MAX77705_CHARGER_CONSTANT_CURRENT = 1, > + MAX77705_CHARGER_CONSTANT_VOLTAGE, > + MAX77705_CHARGER_END_OF_CHARGE, > + MAX77705_CHARGER_DONE > +}; > + > +#endif /* __LINUX_MFD_MAX77705_PRIV_H */ > > -- > 2.39.5 >
diff --git a/MAINTAINERS b/MAINTAINERS index 98a77dece2f1..eb5222a833f8 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -14294,6 +14294,7 @@ F: drivers/*/*max77843.c F: drivers/*/max14577*.c F: drivers/*/max77686*.c F: drivers/*/max77693*.c +F: drivers/*/max77705*.c F: drivers/clk/clk-max77686.c F: drivers/extcon/extcon-max14577.c F: drivers/extcon/extcon-max77693.c @@ -14301,6 +14302,7 @@ F: drivers/rtc/rtc-max77686.c F: include/linux/mfd/max14577*.h F: include/linux/mfd/max77686*.h F: include/linux/mfd/max77693*.h +F: include/linux/mfd/max77705*.h MAXIRADIO FM RADIO RECEIVER DRIVER M: Hans Verkuil <hverkuil@xs4all.nl> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 6b0682af6e32..5064b1b42f76 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -916,6 +916,19 @@ config MFD_MAX77693 additional drivers must be enabled in order to use the functionality of the device. +config MFD_MAX77705 + tristate "Maxim MAX77705 PMIC Support" + depends on I2C + select MFD_CORE + select MFD_SIMPLE_MFD_I2C + help + Say yes here to add support for Maxim Integrated MAX77705 PMIC. + This is a Power Management IC with Charger, safe LDOs, Flash, Haptic + and MUIC controls on chip. + This driver provides common support for accessing the device; + additional drivers must be enabled in order to use the functionality + of the device. + config MFD_MAX77714 tristate "Maxim Semiconductor MAX77714 PMIC Support" depends on I2C diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 9220eaf7cf12..c18bb5a57734 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -168,6 +168,7 @@ obj-$(CONFIG_MFD_MAX77620) += max77620.o obj-$(CONFIG_MFD_MAX77650) += max77650.o obj-$(CONFIG_MFD_MAX77686) += max77686.o obj-$(CONFIG_MFD_MAX77693) += max77693.o +obj-$(CONFIG_MFD_MAX77705) += max77705.o obj-$(CONFIG_MFD_MAX77714) += max77714.o obj-$(CONFIG_MFD_MAX77843) += max77843.o obj-$(CONFIG_MFD_MAX8907) += max8907.o @@ -233,6 +234,7 @@ obj-$(CONFIG_MFD_RK8XX_I2C) += rk8xx-i2c.o obj-$(CONFIG_MFD_RK8XX_SPI) += rk8xx-spi.o obj-$(CONFIG_MFD_RN5T618) += rn5t618.o obj-$(CONFIG_MFD_SEC_CORE) += sec-core.o sec-irq.o +obj-$(CONFIG_MFD_S2DOS05) += s2dos05.o obj-$(CONFIG_MFD_SYSCON) += syscon.o obj-$(CONFIG_MFD_LM3533) += lm3533-core.o lm3533-ctrlbank.o obj-$(CONFIG_MFD_VEXPRESS_SYSREG) += vexpress-sysreg.o diff --git a/drivers/mfd/max77705.c b/drivers/mfd/max77705.c new file mode 100644 index 000000000000..18d344620755 --- /dev/null +++ b/drivers/mfd/max77705.c @@ -0,0 +1,209 @@ +// SPDX-License-Identifier: GPL-2.0+ +// +// Maxim MAX77705 PMIC core driver +// +// Copyright (C) 2024 Dzmitry Sankouski <dsankouski@gmail.com> + +#include <linux/i2c.h> +#include <linux/interrupt.h> +#include <linux/mfd/core.h> +#include <linux/mfd/max77705-private.h> +#include <linux/mfd/max77693-common.h> +#include <linux/pm.h> +#include <linux/power/max17042_battery.h> +#include <linux/module.h> +#include <linux/regmap.h> +#include <linux/of.h> + +static struct mfd_cell max77705_devs[] = { + { + .name = "max77705-rgb", + .of_compatible = "maxim,max77705-rgb", + }, + { + .name = "max77705-charger", + .of_compatible = "maxim,max77705-charger", + }, + { + .name = "max77705-haptic", + .of_compatible = "maxim,max77705-haptic", + }, +}; + +static const struct regmap_range max77705_readable_ranges[] = { + regmap_reg_range(MAX77705_PMIC_REG_PMICID1, MAX77705_PMIC_REG_BSTOUT_MASK), + regmap_reg_range(MAX77705_PMIC_REG_INTSRC, MAX77705_PMIC_REG_RESERVED_29), + regmap_reg_range(MAX77705_PMIC_REG_BOOSTCONTROL1, MAX77705_PMIC_REG_BOOSTCONTROL1), + regmap_reg_range(MAX77705_PMIC_REG_MCONFIG, MAX77705_PMIC_REG_MCONFIG2), + regmap_reg_range(MAX77705_PMIC_REG_FORCE_EN_MASK, MAX77705_PMIC_REG_FORCE_EN_MASK), + regmap_reg_range(MAX77705_PMIC_REG_BOOSTCONTROL1, MAX77705_PMIC_REG_BOOSTCONTROL1), + regmap_reg_range(MAX77705_PMIC_REG_BOOSTCONTROL2, MAX77705_PMIC_REG_BOOSTCONTROL2), + regmap_reg_range(MAX77705_PMIC_REG_SW_RESET, MAX77705_PMIC_REG_USBC_RESET), +}; + +static const struct regmap_range max77705_writable_ranges[] = { + regmap_reg_range(MAX77705_PMIC_REG_MAINCTRL1, MAX77705_PMIC_REG_BSTOUT_MASK), + regmap_reg_range(MAX77705_PMIC_REG_INTSRC, MAX77705_PMIC_REG_RESERVED_29), + regmap_reg_range(MAX77705_PMIC_REG_BOOSTCONTROL1, MAX77705_PMIC_REG_BOOSTCONTROL1), + regmap_reg_range(MAX77705_PMIC_REG_MCONFIG, MAX77705_PMIC_REG_MCONFIG2), + regmap_reg_range(MAX77705_PMIC_REG_FORCE_EN_MASK, MAX77705_PMIC_REG_FORCE_EN_MASK), + regmap_reg_range(MAX77705_PMIC_REG_BOOSTCONTROL1, MAX77705_PMIC_REG_BOOSTCONTROL1), + regmap_reg_range(MAX77705_PMIC_REG_BOOSTCONTROL2, MAX77705_PMIC_REG_BOOSTCONTROL2), + regmap_reg_range(MAX77705_PMIC_REG_SW_RESET, MAX77705_PMIC_REG_USBC_RESET), + +}; + +static const struct regmap_access_table max77705_readable_table = { + .yes_ranges = max77705_readable_ranges, + .n_yes_ranges = ARRAY_SIZE(max77705_readable_ranges), +}; + +static const struct regmap_access_table max77705_writable_table = { + .yes_ranges = max77705_writable_ranges, + .n_yes_ranges = ARRAY_SIZE(max77705_writable_ranges), +}; + +static const struct regmap_config max77705_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .rd_table = &max77705_readable_table, + .wr_table = &max77705_writable_table, + .max_register = MAX77705_PMIC_REG_USBC_RESET, +}; + +static const struct regmap_config max77705_leds_regmap_config = { + .reg_base = MAX77705_RGBLED_REG_BASE, + .reg_bits = 8, + .val_bits = 8, + .max_register = MAX77705_LED_REG_END, +}; + +static const struct regmap_irq max77705_topsys_irqs[] = { + { .mask = MAX77705_SYSTEM_IRQ_BSTEN_INT, }, + { .mask = MAX77705_SYSTEM_IRQ_SYSUVLO_INT, }, + { .mask = MAX77705_SYSTEM_IRQ_SYSOVLO_INT, }, + { .mask = MAX77705_SYSTEM_IRQ_TSHDN_INT, }, + { .mask = MAX77705_SYSTEM_IRQ_TM_INT, }, +}; + +static const struct regmap_irq_chip max77705_topsys_irq_chip = { + .name = "max77705-topsys", + .status_base = MAX77705_PMIC_REG_SYSTEM_INT, + .mask_base = MAX77705_PMIC_REG_SYSTEM_INT_MASK, + .num_regs = 1, + .irqs = max77705_topsys_irqs, + .num_irqs = ARRAY_SIZE(max77705_topsys_irqs), +}; + +static int max77705_i2c_probe(struct i2c_client *i2c) +{ + struct max77693_dev *max77705; + struct regmap_irq_chip_data *irq_data; + struct irq_domain *domain; + int ret; + unsigned int pmic_rev_value; + enum max77705_hw_rev pmic_rev; + + max77705 = devm_kzalloc(&i2c->dev, sizeof(*max77705), GFP_KERNEL); + if (!max77705) + return -ENOMEM; + + max77705->i2c = i2c; + max77705->dev = &i2c->dev; + max77705->irq = i2c->irq; + max77705->type = TYPE_MAX77705; + i2c_set_clientdata(i2c, max77705); + + max77705->regmap = devm_regmap_init_i2c(i2c, &max77705_regmap_config); + if (IS_ERR(max77705->regmap)) + return PTR_ERR(max77705->regmap); + + if (regmap_read(max77705->regmap, MAX77705_PMIC_REG_PMICREV, &pmic_rev_value) < 0) + return -ENODEV; + + pmic_rev = pmic_rev_value & MAX77705_REVISION_MASK; + if (pmic_rev != MAX77705_PASS3) + return dev_err_probe(max77705->dev, -ENODEV, + "Rev.0x%x is not tested\n", pmic_rev); + + max77705->regmap_leds = devm_regmap_init_i2c(i2c, &max77705_leds_regmap_config); + if (IS_ERR(max77705->regmap_leds)) + return dev_err_probe(max77705->dev, PTR_ERR(max77705->regmap_leds), + "Failed to register leds regmap\n"); + + ret = devm_regmap_add_irq_chip(max77705->dev, max77705->regmap, + max77705->irq, + IRQF_ONESHOT | IRQF_SHARED, 0, + &max77705_topsys_irq_chip, + &irq_data); + if (ret) + return dev_err_probe(max77705->dev, ret, "Failed to add irq chip\n"); + + /* Unmask interrupts from all blocks in interrupt source register */ + ret = regmap_update_bits(max77705->regmap, + MAX77705_PMIC_REG_INTSRC_MASK, + MAX77705_SRC_IRQ_ALL, (unsigned int)~MAX77705_SRC_IRQ_ALL); + if (ret < 0) + return dev_err_probe(max77705->dev, ret, + "Could not unmask interrupts in INTSRC\n"); + + domain = regmap_irq_get_domain(irq_data); + + ret = devm_mfd_add_devices(max77705->dev, PLATFORM_DEVID_NONE, + max77705_devs, ARRAY_SIZE(max77705_devs), + NULL, 0, domain); + if (ret) + return dev_err_probe(max77705->dev, ret, "Failed to register child devices\n"); + + device_init_wakeup(max77705->dev, true); + + return 0; +} + +static int max77705_suspend(struct device *dev) +{ + struct i2c_client *i2c = to_i2c_client(dev); + struct max77693_dev *max77705 = i2c_get_clientdata(i2c); + + disable_irq(max77705->irq); + + if (device_may_wakeup(dev)) + enable_irq_wake(max77705->irq); + + return 0; +} + +static int max77705_resume(struct device *dev) +{ + struct i2c_client *i2c = to_i2c_client(dev); + struct max77693_dev *max77705 = i2c_get_clientdata(i2c); + + if (device_may_wakeup(dev)) + disable_irq_wake(max77705->irq); + + enable_irq(max77705->irq); + + return 0; +} +DEFINE_SIMPLE_DEV_PM_OPS(max77705_pm_ops, max77705_suspend, max77705_resume); + +static const struct of_device_id max77705_i2c_of_match[] = { + { .compatible = "maxim,max77705" }, + { } +}; +MODULE_DEVICE_TABLE(of, max77705_i2c_of_match); + +static struct i2c_driver max77705_i2c_driver = { + .driver = { + .name = "max77705", + .of_match_table = max77705_i2c_of_match, + .pm = pm_sleep_ptr(&max77705_pm_ops), + .suppress_bind_attrs = true, + }, + .probe = max77705_i2c_probe +}; +module_i2c_driver(max77705_i2c_driver); + +MODULE_DESCRIPTION("Maxim MAX77705 PMIC core driver"); +MODULE_AUTHOR("Dzmitry Sankouski <dsankouski@gmail.com>"); +MODULE_LICENSE("GPL"); diff --git a/include/linux/mfd/max77693-common.h b/include/linux/mfd/max77693-common.h index a5bce099f1ed..ec2e1b2dceb8 100644 --- a/include/linux/mfd/max77693-common.h +++ b/include/linux/mfd/max77693-common.h @@ -1,6 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0+ */ /* - * Common data shared between Maxim 77693 and 77843 drivers + * Common data shared between Maxim 77693, 77705 and 77843 drivers * * Copyright (C) 2015 Samsung Electronics */ @@ -11,6 +11,7 @@ enum max77693_types { TYPE_MAX77693_UNKNOWN, TYPE_MAX77693, + TYPE_MAX77705, TYPE_MAX77843, TYPE_MAX77693_NUM, @@ -32,6 +33,7 @@ struct max77693_dev { struct regmap *regmap_muic; struct regmap *regmap_haptic; /* Only MAX77693 */ struct regmap *regmap_chg; /* Only MAX77843 */ + struct regmap *regmap_leds; /* Only MAX77705 */ struct regmap_irq_chip_data *irq_data_led; struct regmap_irq_chip_data *irq_data_topsys; diff --git a/include/linux/mfd/max77705-private.h b/include/linux/mfd/max77705-private.h new file mode 100644 index 000000000000..e4309d3b6f2a --- /dev/null +++ b/include/linux/mfd/max77705-private.h @@ -0,0 +1,178 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Maxim MAX77705 definitions. + * + * Copyright (C) 2015 Samsung Electronics, Inc. + * Copyright (C) 2024 Dzmitry Sankouski <dsankouski@gmail.com> + */ + +#ifndef __LINUX_MFD_MAX77705_PRIV_H +#define __LINUX_MFD_MAX77705_PRIV_H + +#define MAX77705_SRC_IRQ_CHG BIT(0) +#define MAX77705_SRC_IRQ_TOP BIT(1) +#define MAX77705_SRC_IRQ_FG BIT(2) +#define MAX77705_SRC_IRQ_USBC BIT(3) +#define MAX77705_SRC_IRQ_ALL (MAX77705_SRC_IRQ_CHG | MAX77705_SRC_IRQ_TOP | \ + MAX77705_SRC_IRQ_FG | MAX77705_SRC_IRQ_USBC) + +/* MAX77705_PMIC_REG_PMICREV register */ +#define MAX77705_VERSION_SHIFT 3 +#define MAX77705_REVISION_MASK GENMASK(2, 0) +#define MAX77705_VERSION_MASK GENMASK(7, MAX77705_VERSION_SHIFT) +/* MAX77705_PMIC_REG_MAINCTRL1 register */ +#define MAX77705_MAINCTRL1_BIASEN_SHIFT 7 +#define MAX77705_MAINCTRL1_BIASEN_MASK BIT(MAX77705_MAINCTRL1_BIASEN_SHIFT) +/* MAX77705_PMIC_REG_MCONFIG2 (haptics) register */ +#define MAX77705_CONFIG2_MEN_SHIFT 6 +#define MAX77705_CONFIG2_MODE_SHIFT 7 +#define MAX77705_CONFIG2_HTYP_SHIFT 5 +/* MAX77705_PMIC_REG_SYSTEM_INT_MASK register */ +#define MAX77705_SYSTEM_IRQ_BSTEN_INT BIT(3) +#define MAX77705_SYSTEM_IRQ_SYSUVLO_INT BIT(4) +#define MAX77705_SYSTEM_IRQ_SYSOVLO_INT BIT(5) +#define MAX77705_SYSTEM_IRQ_TSHDN_INT BIT(6) +#define MAX77705_SYSTEM_IRQ_TM_INT BIT(7) + +enum max77705_hw_rev { + MAX77705_PASS1 = 1, + MAX77705_PASS2, + MAX77705_PASS3 +}; + +enum max77705_reg { + MAX77705_PMIC_REG_PMICID1 = 0x00, + MAX77705_PMIC_REG_PMICREV = 0x01, + MAX77705_PMIC_REG_MAINCTRL1 = 0x02, + MAX77705_PMIC_REG_BSTOUT_MASK = 0x03, + MAX77705_PMIC_REG_FORCE_EN_MASK = 0x08, + MAX77705_PMIC_REG_MCONFIG = 0x10, + MAX77705_PMIC_REG_MCONFIG2 = 0x11, + MAX77705_PMIC_REG_INTSRC = 0x22, + MAX77705_PMIC_REG_INTSRC_MASK = 0x23, + MAX77705_PMIC_REG_SYSTEM_INT = 0x24, + MAX77705_PMIC_REG_RESERVED_25 = 0x25, + MAX77705_PMIC_REG_SYSTEM_INT_MASK = 0x26, + MAX77705_PMIC_REG_RESERVED_27 = 0x27, + MAX77705_PMIC_REG_RESERVED_28 = 0x28, + MAX77705_PMIC_REG_RESERVED_29 = 0x29, + MAX77705_PMIC_REG_BOOSTCONTROL1 = 0x4C, + MAX77705_PMIC_REG_BOOSTCONTROL2 = 0x4F, + MAX77705_PMIC_REG_SW_RESET = 0x50, + MAX77705_PMIC_REG_USBC_RESET = 0x51, + + MAX77705_PMIC_REG_END +}; + +enum max77705_chg_reg { + MAX77705_CHG_REG_BASE = 0xB0, + MAX77705_CHG_REG_INT = 0, + MAX77705_CHG_REG_INT_MASK, + MAX77705_CHG_REG_INT_OK, + MAX77705_CHG_REG_DETAILS_00, + MAX77705_CHG_REG_DETAILS_01, + MAX77705_CHG_REG_DETAILS_02, + MAX77705_CHG_REG_DTLS_03, + MAX77705_CHG_REG_CNFG_00, + MAX77705_CHG_REG_CNFG_01, + MAX77705_CHG_REG_CNFG_02, + MAX77705_CHG_REG_CNFG_03, + MAX77705_CHG_REG_CNFG_04, + MAX77705_CHG_REG_CNFG_05, + MAX77705_CHG_REG_CNFG_06, + MAX77705_CHG_REG_CNFG_07, + MAX77705_CHG_REG_CNFG_08, + MAX77705_CHG_REG_CNFG_09, + MAX77705_CHG_REG_CNFG_10, + MAX77705_CHG_REG_CNFG_11, + + MAX77705_CHG_REG_CNFG_12, + MAX77705_CHG_REG_CNFG_13, + MAX77705_CHG_REG_CNFG_14, + MAX77705_CHG_REG_SAFEOUT_CTRL +}; + +enum max77705_fuelgauge_reg { + STATUS_REG = 0x00, + VALRT_THRESHOLD_REG = 0x01, + TALRT_THRESHOLD_REG = 0x02, + SALRT_THRESHOLD_REG = 0x03, + REMCAP_REP_REG = 0x05, + SOCREP_REG = 0x06, + TEMPERATURE_REG = 0x08, + VCELL_REG = 0x09, + TIME_TO_EMPTY_REG = 0x11, + FULLSOCTHR_REG = 0x13, + CURRENT_REG = 0x0A, + AVG_CURRENT_REG = 0x0B, + SOCMIX_REG = 0x0D, + SOCAV_REG = 0x0E, + REMCAP_MIX_REG = 0x0F, + FULLCAP_REG = 0x10, + RFAST_REG = 0x15, + AVR_TEMPERATURE_REG = 0x16, + CYCLES_REG = 0x17, + DESIGNCAP_REG = 0x18, + AVR_VCELL_REG = 0x19, + TIME_TO_FULL_REG = 0x20, + CONFIG_REG = 0x1D, + ICHGTERM_REG = 0x1E, + REMCAP_AV_REG = 0x1F, + FULLCAP_NOM_REG = 0x23, + LEARN_CFG_REG = 0x28, + FILTER_CFG_REG = 0x29, + MISCCFG_REG = 0x2B, + QRTABLE20_REG = 0x32, + FULLCAP_REP_REG = 0x35, + RCOMP_REG = 0x38, + VEMPTY_REG = 0x3A, + FSTAT_REG = 0x3D, + DISCHARGE_THRESHOLD_REG = 0x40, + QRTABLE30_REG = 0x42, + ISYS_REG = 0x43, + DQACC_REG = 0x45, + DPACC_REG = 0x46, + AVGISYS_REG = 0x4B, + QH_REG = 0x4D, + VSYS_REG = 0xB1, + TALRTTH2_REG = 0xB2, + VBYP_REG = 0xB3, + CONFIG2_REG = 0xBB, + IIN_REG = 0xD0, + OCV_REG = 0xEE, + VFOCV_REG = 0xFB, + VFSOC_REG = 0xFF, + + MAX77705_FG_END +}; + +enum max77705_led_reg { + MAX77705_RGBLED_REG_BASE = 0x30, + MAX77705_RGBLED_REG_LEDEN = 0, + MAX77705_RGBLED_REG_LED0BRT, + MAX77705_RGBLED_REG_LED1BRT, + MAX77705_RGBLED_REG_LED2BRT, + MAX77705_RGBLED_REG_LED3BRT, + MAX77705_RGBLED_REG_LEDRMP, + MAX77705_RGBLED_REG_LEDBLNK, + MAX77705_LED_REG_END +}; + +enum max77705_charger_battery_state { + MAX77705_BATTERY_NOBAT, + MAX77705_BATTERY_PREQUALIFICATION, + MAX77705_BATTERY_DEAD, + MAX77705_BATTERY_GOOD, + MAX77705_BATTERY_LOWVOLTAGE, + MAX77705_BATTERY_OVERVOLTAGE, + MAX77705_BATTERY_RESERVED +}; + +enum max77705_charger_charge_type { + MAX77705_CHARGER_CONSTANT_CURRENT = 1, + MAX77705_CHARGER_CONSTANT_VOLTAGE, + MAX77705_CHARGER_END_OF_CHARGE, + MAX77705_CHARGER_DONE +}; + +#endif /* __LINUX_MFD_MAX77705_PRIV_H */
Add the core MFD driver for max77705 PMIC. Drivers for sub-devices will be added in subsequent patches. Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com> --- Changes for v12: - remove fuelgauge support (it's moved to simple-mfd-i2c, to reflect the fact it's a separate device with it's own i2c client) - remove unneeded ending comma - remove struct dev_pm_ops because defined by DEFINE_SIMPLE_DEV_PM_OPS - Kconfig: select MFD_SIMPLE_MFD_I2C Changes for v10: - never blank line between call and its error check - remove unnecessary line wrap - revert wrong changes in max77693-common.h - move max77705_pm_ops from header to c file - fail probe, when fuelgauge is not found in sub device list - remove fuelgauge compatible, because with compatible, platform matches using compatible, and platform_device id_entry is empty. With no compatible, platform matches by device id, and id_entry is populated. - use dev_err_probe for error handling Changes for v9: - use max17042 as fuel gauge chip - initialize max17042 i2c dummy device in mfd device, because bus can be used for reading additional values, not related to fuelgauge, like chip input current, system bus current - fix pmic_rev kernel test robot error Changes for v8: - fix comment style C++ -> C - remove unused pmic_ver Changes for v6: - add PMIC suffix in Kconfig - remove filename from file header - reorder headers alphabetically - move out fg and chg adresses definitions - rename led name and compatible - remove overbracketing - move charger and fuel gauge i2c initialization to their drivers - fix max77705_i2c_driver tabbing - formatting fixes Changes for v5: - license change to 2.0 - use same hardware name in Kconfig and module descriptions Changes for v4: - rework driver from scratch - migrate to regmap_add_irq_chip, remove max77705-irq.c, rename max77705-core.c to max77705.c - cleanup headers - remove debugfs code - migrate to use max77693_dev structure - remove max77705.h --- MAINTAINERS | 2 ++ drivers/mfd/Kconfig | 13 +++++++++ drivers/mfd/Makefile | 2 ++ drivers/mfd/max77705.c | 209 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/mfd/max77693-common.h | 4 ++- include/linux/mfd/max77705-private.h | 178 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 6 files changed, 407 insertions(+), 1 deletion(-)