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linux-stable/drivers/mfd/rohm-bd71828.c
Matti Vaittinen 9b15062cc0 mfd: rtc: bd7xxxx Drop IC name from IRQ 
A few ROHM PMICs have an RTC block which can be controlled by the
rtc-bd70528 driver. The RTC driver needs the alarm interrupt information
from the parent MFD driver. The MFD driver provides the interrupt
information as a set of named interrupts, where the name is of form:
<PMIC model>-rtc-alm-<x>, where x is an alarm block number.

>From the RTC driver point of view it is irrelevant what the PMIC name
is. It is sufficient to know this is alarm interrupt for a block X. The
PMIC model information is carried to RTC via the platform device ID.
Hence, having the PMIC model in the interrupt name is only making things
more complex because the RTC driver needs to request differently named
interrupts on different PMICs, making code unnecessary complicated.

Simplify this slightly by always using the RTC driver name 'bd70528' as
the prefix for alarm interrupts, no matter what the exact PMIC model is,
and always request the alarm interrupts of same name no matter what the
PMIC model is.

Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/ZvVNCfk10ih0YFLW@fedora
Signed-off-by: Lee Jones <lee@kernel.org>
2024-11-01 15:53:05 +00:00

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// SPDX-License-Identifier: GPL-2.0-only
//
// Copyright (C) 2019 ROHM Semiconductors
//
// ROHM BD71828/BD71815 PMIC driver
#include <linux/gpio_keys.h>
#include <linux/i2c.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/irq.h>
#include <linux/mfd/core.h>
#include <linux/mfd/rohm-bd71815.h>
#include <linux/mfd/rohm-bd71828.h>
#include <linux/mfd/rohm-generic.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/regmap.h>
#include <linux/types.h>
static struct gpio_keys_button button = {
.code = KEY_POWER,
.gpio = -1,
.type = EV_KEY,
};
static struct gpio_keys_platform_data bd71828_powerkey_data = {
.buttons = &button,
.nbuttons = 1,
.name = "bd71828-pwrkey",
};
static const struct resource bd71815_rtc_irqs[] = {
DEFINE_RES_IRQ_NAMED(BD71815_INT_RTC0, "bd70528-rtc-alm-0"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_RTC1, "bd70528-rtc-alm-1"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_RTC2, "bd70528-rtc-alm-2"),
};
static const struct resource bd71828_rtc_irqs[] = {
DEFINE_RES_IRQ_NAMED(BD71828_INT_RTC0, "bd70528-rtc-alm-0"),
DEFINE_RES_IRQ_NAMED(BD71828_INT_RTC1, "bd70528-rtc-alm-1"),
DEFINE_RES_IRQ_NAMED(BD71828_INT_RTC2, "bd70528-rtc-alm-2"),
};
static struct resource bd71815_power_irqs[] = {
DEFINE_RES_IRQ_NAMED(BD71815_INT_DCIN_RMV, "bd71815-dcin-rmv"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_CLPS_OUT, "bd71815-clps-out"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_CLPS_IN, "bd71815-clps-in"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_DCIN_OVP_RES, "bd71815-dcin-ovp-res"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_DCIN_OVP_DET, "bd71815-dcin-ovp-det"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_DCIN_MON_RES, "bd71815-dcin-mon-res"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_DCIN_MON_DET, "bd71815-dcin-mon-det"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_VSYS_UV_RES, "bd71815-vsys-uv-res"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_VSYS_UV_DET, "bd71815-vsys-uv-det"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_VSYS_LOW_RES, "bd71815-vsys-low-res"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_VSYS_LOW_DET, "bd71815-vsys-low-det"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_VSYS_MON_RES, "bd71815-vsys-mon-res"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_VSYS_MON_RES, "bd71815-vsys-mon-det"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_CHG_WDG_TEMP, "bd71815-chg-wdg-temp"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_CHG_WDG_TIME, "bd71815-chg-wdg"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_CHG_RECHARGE_RES, "bd71815-rechg-res"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_CHG_RECHARGE_DET, "bd71815-rechg-det"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_CHG_RANGED_TEMP_TRANSITION, "bd71815-ranged-temp-transit"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_CHG_STATE_TRANSITION, "bd71815-chg-state-change"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_TEMP_NORMAL, "bd71815-bat-temp-normal"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_TEMP_ERANGE, "bd71815-bat-temp-erange"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_REMOVED, "bd71815-bat-rmv"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_DETECTED, "bd71815-bat-det"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_THERM_REMOVED, "bd71815-therm-rmv"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_THERM_DETECTED, "bd71815-therm-det"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_DEAD, "bd71815-bat-dead"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_SHORTC_RES, "bd71815-bat-short-res"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_SHORTC_DET, "bd71815-bat-short-det"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_LOW_VOLT_RES, "bd71815-bat-low-res"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_LOW_VOLT_DET, "bd71815-bat-low-det"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_OVER_VOLT_RES, "bd71815-bat-over-res"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_OVER_VOLT_DET, "bd71815-bat-over-det"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_MON_RES, "bd71815-bat-mon-res"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_MON_DET, "bd71815-bat-mon-det"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_CC_MON1, "bd71815-bat-cc-mon1"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_CC_MON2, "bd71815-bat-cc-mon2"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_CC_MON3, "bd71815-bat-cc-mon3"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_OVER_CURR_1_RES, "bd71815-bat-oc1-res"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_OVER_CURR_1_DET, "bd71815-bat-oc1-det"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_OVER_CURR_2_RES, "bd71815-bat-oc2-res"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_OVER_CURR_2_DET, "bd71815-bat-oc2-det"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_OVER_CURR_3_RES, "bd71815-bat-oc3-res"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_BAT_OVER_CURR_3_DET, "bd71815-bat-oc3-det"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_TEMP_BAT_LOW_RES, "bd71815-bat-low-res"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_TEMP_BAT_LOW_DET, "bd71815-bat-low-det"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_TEMP_BAT_HI_RES, "bd71815-bat-hi-res"),
DEFINE_RES_IRQ_NAMED(BD71815_INT_TEMP_BAT_HI_DET, "bd71815-bat-hi-det"),
};
static struct mfd_cell bd71815_mfd_cells[] = {
{ .name = "bd71815-pmic", },
{ .name = "bd71815-clk", },
{ .name = "bd71815-gpo", },
{
.name = "bd71815-power",
.num_resources = ARRAY_SIZE(bd71815_power_irqs),
.resources = &bd71815_power_irqs[0],
},
{
.name = "bd71815-rtc",
.num_resources = ARRAY_SIZE(bd71815_rtc_irqs),
.resources = &bd71815_rtc_irqs[0],
},
};
static struct mfd_cell bd71828_mfd_cells[] = {
{ .name = "bd71828-pmic", },
{ .name = "bd71828-gpio", },
{ .name = "bd71828-led", .of_compatible = "rohm,bd71828-leds" },
/*
* We use BD71837 driver to drive the clock block. Only differences to
* BD70528 clock gate are the register address and mask.
*/
{ .name = "bd71828-clk", },
{ .name = "bd71827-power", },
{
.name = "bd71828-rtc",
.resources = bd71828_rtc_irqs,
.num_resources = ARRAY_SIZE(bd71828_rtc_irqs),
}, {
.name = "gpio-keys",
.platform_data = &bd71828_powerkey_data,
.pdata_size = sizeof(bd71828_powerkey_data),
},
};
static const struct regmap_range bd71815_volatile_ranges[] = {
{
.range_min = BD71815_REG_SEC,
.range_max = BD71815_REG_YEAR,
}, {
.range_min = BD71815_REG_CONF,
.range_max = BD71815_REG_BAT_TEMP,
}, {
.range_min = BD71815_REG_VM_IBAT_U,
.range_max = BD71815_REG_CC_CTRL,
}, {
.range_min = BD71815_REG_CC_STAT,
.range_max = BD71815_REG_CC_CURCD_L,
}, {
.range_min = BD71815_REG_VM_BTMP_MON,
.range_max = BD71815_REG_VM_BTMP_MON,
}, {
.range_min = BD71815_REG_INT_STAT,
.range_max = BD71815_REG_INT_UPDATE,
}, {
.range_min = BD71815_REG_VM_VSYS_U,
.range_max = BD71815_REG_REX_CTRL_1,
}, {
.range_min = BD71815_REG_FULL_CCNTD_3,
.range_max = BD71815_REG_CCNTD_CHG_2,
},
};
static const struct regmap_range bd71828_volatile_ranges[] = {
{
.range_min = BD71828_REG_PS_CTRL_1,
.range_max = BD71828_REG_PS_CTRL_1,
}, {
.range_min = BD71828_REG_PS_CTRL_3,
.range_max = BD71828_REG_PS_CTRL_3,
}, {
.range_min = BD71828_REG_RTC_SEC,
.range_max = BD71828_REG_RTC_YEAR,
}, {
/*
* For now make all charger registers volatile because many
* needs to be and because the charger block is not that
* performance critical.
*/
.range_min = BD71828_REG_CHG_STATE,
.range_max = BD71828_REG_CHG_FULL,
}, {
.range_min = BD71828_REG_INT_MAIN,
.range_max = BD71828_REG_IO_STAT,
},
};
static const struct regmap_access_table bd71815_volatile_regs = {
.yes_ranges = &bd71815_volatile_ranges[0],
.n_yes_ranges = ARRAY_SIZE(bd71815_volatile_ranges),
};
static const struct regmap_access_table bd71828_volatile_regs = {
.yes_ranges = &bd71828_volatile_ranges[0],
.n_yes_ranges = ARRAY_SIZE(bd71828_volatile_ranges),
};
static const struct regmap_config bd71815_regmap = {
.reg_bits = 8,
.val_bits = 8,
.volatile_table = &bd71815_volatile_regs,
.max_register = BD71815_MAX_REGISTER - 1,
.cache_type = REGCACHE_MAPLE,
};
static const struct regmap_config bd71828_regmap = {
.reg_bits = 8,
.val_bits = 8,
.volatile_table = &bd71828_volatile_regs,
.max_register = BD71828_MAX_REGISTER,
.cache_type = REGCACHE_MAPLE,
};
/*
* Mapping of main IRQ register bits to sub-IRQ register offsets so that we can
* access corect sub-IRQ registers based on bits that are set in main IRQ
* register. BD71815 and BD71828 have same sub-register-block offests.
*/
static unsigned int bit0_offsets[] = {11}; /* RTC IRQ */
static unsigned int bit1_offsets[] = {10}; /* TEMP IRQ */
static unsigned int bit2_offsets[] = {6, 7, 8, 9}; /* BAT MON IRQ */
static unsigned int bit3_offsets[] = {5}; /* BAT IRQ */
static unsigned int bit4_offsets[] = {4}; /* CHG IRQ */
static unsigned int bit5_offsets[] = {3}; /* VSYS IRQ */
static unsigned int bit6_offsets[] = {1, 2}; /* DCIN IRQ */
static unsigned int bit7_offsets[] = {0}; /* BUCK IRQ */
static struct regmap_irq_sub_irq_map bd718xx_sub_irq_offsets[] = {
REGMAP_IRQ_MAIN_REG_OFFSET(bit0_offsets),
REGMAP_IRQ_MAIN_REG_OFFSET(bit1_offsets),
REGMAP_IRQ_MAIN_REG_OFFSET(bit2_offsets),
REGMAP_IRQ_MAIN_REG_OFFSET(bit3_offsets),
REGMAP_IRQ_MAIN_REG_OFFSET(bit4_offsets),
REGMAP_IRQ_MAIN_REG_OFFSET(bit5_offsets),
REGMAP_IRQ_MAIN_REG_OFFSET(bit6_offsets),
REGMAP_IRQ_MAIN_REG_OFFSET(bit7_offsets),
};
static const struct regmap_irq bd71815_irqs[] = {
REGMAP_IRQ_REG(BD71815_INT_BUCK1_OCP, 0, BD71815_INT_BUCK1_OCP_MASK),
REGMAP_IRQ_REG(BD71815_INT_BUCK2_OCP, 0, BD71815_INT_BUCK2_OCP_MASK),
REGMAP_IRQ_REG(BD71815_INT_BUCK3_OCP, 0, BD71815_INT_BUCK3_OCP_MASK),
REGMAP_IRQ_REG(BD71815_INT_BUCK4_OCP, 0, BD71815_INT_BUCK4_OCP_MASK),
REGMAP_IRQ_REG(BD71815_INT_BUCK5_OCP, 0, BD71815_INT_BUCK5_OCP_MASK),
REGMAP_IRQ_REG(BD71815_INT_LED_OVP, 0, BD71815_INT_LED_OVP_MASK),
REGMAP_IRQ_REG(BD71815_INT_LED_OCP, 0, BD71815_INT_LED_OCP_MASK),
REGMAP_IRQ_REG(BD71815_INT_LED_SCP, 0, BD71815_INT_LED_SCP_MASK),
/* DCIN1 interrupts */
REGMAP_IRQ_REG(BD71815_INT_DCIN_RMV, 1, BD71815_INT_DCIN_RMV_MASK),
REGMAP_IRQ_REG(BD71815_INT_CLPS_OUT, 1, BD71815_INT_CLPS_OUT_MASK),
REGMAP_IRQ_REG(BD71815_INT_CLPS_IN, 1, BD71815_INT_CLPS_IN_MASK),
REGMAP_IRQ_REG(BD71815_INT_DCIN_OVP_RES, 1, BD71815_INT_DCIN_OVP_RES_MASK),
REGMAP_IRQ_REG(BD71815_INT_DCIN_OVP_DET, 1, BD71815_INT_DCIN_OVP_DET_MASK),
/* DCIN2 interrupts */
REGMAP_IRQ_REG(BD71815_INT_DCIN_MON_RES, 2, BD71815_INT_DCIN_MON_RES_MASK),
REGMAP_IRQ_REG(BD71815_INT_DCIN_MON_DET, 2, BD71815_INT_DCIN_MON_DET_MASK),
REGMAP_IRQ_REG(BD71815_INT_WDOG, 2, BD71815_INT_WDOG_MASK),
/* Vsys */
REGMAP_IRQ_REG(BD71815_INT_VSYS_UV_RES, 3, BD71815_INT_VSYS_UV_RES_MASK),
REGMAP_IRQ_REG(BD71815_INT_VSYS_UV_DET, 3, BD71815_INT_VSYS_UV_DET_MASK),
REGMAP_IRQ_REG(BD71815_INT_VSYS_LOW_RES, 3, BD71815_INT_VSYS_LOW_RES_MASK),
REGMAP_IRQ_REG(BD71815_INT_VSYS_LOW_DET, 3, BD71815_INT_VSYS_LOW_DET_MASK),
REGMAP_IRQ_REG(BD71815_INT_VSYS_MON_RES, 3, BD71815_INT_VSYS_MON_RES_MASK),
REGMAP_IRQ_REG(BD71815_INT_VSYS_MON_DET, 3, BD71815_INT_VSYS_MON_DET_MASK),
/* Charger */
REGMAP_IRQ_REG(BD71815_INT_CHG_WDG_TEMP, 4, BD71815_INT_CHG_WDG_TEMP_MASK),
REGMAP_IRQ_REG(BD71815_INT_CHG_WDG_TIME, 4, BD71815_INT_CHG_WDG_TIME_MASK),
REGMAP_IRQ_REG(BD71815_INT_CHG_RECHARGE_RES, 4, BD71815_INT_CHG_RECHARGE_RES_MASK),
REGMAP_IRQ_REG(BD71815_INT_CHG_RECHARGE_DET, 4, BD71815_INT_CHG_RECHARGE_DET_MASK),
REGMAP_IRQ_REG(BD71815_INT_CHG_RANGED_TEMP_TRANSITION, 4,
BD71815_INT_CHG_RANGED_TEMP_TRANSITION_MASK),
REGMAP_IRQ_REG(BD71815_INT_CHG_STATE_TRANSITION, 4, BD71815_INT_CHG_STATE_TRANSITION_MASK),
/* Battery */
REGMAP_IRQ_REG(BD71815_INT_BAT_TEMP_NORMAL, 5, BD71815_INT_BAT_TEMP_NORMAL_MASK),
REGMAP_IRQ_REG(BD71815_INT_BAT_TEMP_ERANGE, 5, BD71815_INT_BAT_TEMP_ERANGE_MASK),
REGMAP_IRQ_REG(BD71815_INT_BAT_REMOVED, 5, BD71815_INT_BAT_REMOVED_MASK),
REGMAP_IRQ_REG(BD71815_INT_BAT_DETECTED, 5, BD71815_INT_BAT_DETECTED_MASK),
REGMAP_IRQ_REG(BD71815_INT_THERM_REMOVED, 5, BD71815_INT_THERM_REMOVED_MASK),
REGMAP_IRQ_REG(BD71815_INT_THERM_DETECTED, 5, BD71815_INT_THERM_DETECTED_MASK),
/* Battery Mon 1 */
REGMAP_IRQ_REG(BD71815_INT_BAT_DEAD, 6, BD71815_INT_BAT_DEAD_MASK),
REGMAP_IRQ_REG(BD71815_INT_BAT_SHORTC_RES, 6, BD71815_INT_BAT_SHORTC_RES_MASK),
REGMAP_IRQ_REG(BD71815_INT_BAT_SHORTC_DET, 6, BD71815_INT_BAT_SHORTC_DET_MASK),
REGMAP_IRQ_REG(BD71815_INT_BAT_LOW_VOLT_RES, 6, BD71815_INT_BAT_LOW_VOLT_RES_MASK),
REGMAP_IRQ_REG(BD71815_INT_BAT_LOW_VOLT_DET, 6, BD71815_INT_BAT_LOW_VOLT_DET_MASK),
REGMAP_IRQ_REG(BD71815_INT_BAT_OVER_VOLT_RES, 6, BD71815_INT_BAT_OVER_VOLT_RES_MASK),
REGMAP_IRQ_REG(BD71815_INT_BAT_OVER_VOLT_DET, 6, BD71815_INT_BAT_OVER_VOLT_DET_MASK),
/* Battery Mon 2 */
REGMAP_IRQ_REG(BD71815_INT_BAT_MON_RES, 7, BD71815_INT_BAT_MON_RES_MASK),
REGMAP_IRQ_REG(BD71815_INT_BAT_MON_DET, 7, BD71815_INT_BAT_MON_DET_MASK),
/* Battery Mon 3 (Coulomb counter) */
REGMAP_IRQ_REG(BD71815_INT_BAT_CC_MON1, 8, BD71815_INT_BAT_CC_MON1_MASK),
REGMAP_IRQ_REG(BD71815_INT_BAT_CC_MON2, 8, BD71815_INT_BAT_CC_MON2_MASK),
REGMAP_IRQ_REG(BD71815_INT_BAT_CC_MON3, 8, BD71815_INT_BAT_CC_MON3_MASK),
/* Battery Mon 4 */
REGMAP_IRQ_REG(BD71815_INT_BAT_OVER_CURR_1_RES, 9, BD71815_INT_BAT_OVER_CURR_1_RES_MASK),
REGMAP_IRQ_REG(BD71815_INT_BAT_OVER_CURR_1_DET, 9, BD71815_INT_BAT_OVER_CURR_1_DET_MASK),
REGMAP_IRQ_REG(BD71815_INT_BAT_OVER_CURR_2_RES, 9, BD71815_INT_BAT_OVER_CURR_2_RES_MASK),
REGMAP_IRQ_REG(BD71815_INT_BAT_OVER_CURR_2_DET, 9, BD71815_INT_BAT_OVER_CURR_2_DET_MASK),
REGMAP_IRQ_REG(BD71815_INT_BAT_OVER_CURR_3_RES, 9, BD71815_INT_BAT_OVER_CURR_3_RES_MASK),
REGMAP_IRQ_REG(BD71815_INT_BAT_OVER_CURR_3_DET, 9, BD71815_INT_BAT_OVER_CURR_3_DET_MASK),
/* Temperature */
REGMAP_IRQ_REG(BD71815_INT_TEMP_BAT_LOW_RES, 10, BD71815_INT_TEMP_BAT_LOW_RES_MASK),
REGMAP_IRQ_REG(BD71815_INT_TEMP_BAT_LOW_DET, 10, BD71815_INT_TEMP_BAT_LOW_DET_MASK),
REGMAP_IRQ_REG(BD71815_INT_TEMP_BAT_HI_RES, 10, BD71815_INT_TEMP_BAT_HI_RES_MASK),
REGMAP_IRQ_REG(BD71815_INT_TEMP_BAT_HI_DET, 10, BD71815_INT_TEMP_BAT_HI_DET_MASK),
REGMAP_IRQ_REG(BD71815_INT_TEMP_CHIP_OVER_125_RES, 10,
BD71815_INT_TEMP_CHIP_OVER_125_RES_MASK),
REGMAP_IRQ_REG(BD71815_INT_TEMP_CHIP_OVER_125_DET, 10,
BD71815_INT_TEMP_CHIP_OVER_125_DET_MASK),
REGMAP_IRQ_REG(BD71815_INT_TEMP_CHIP_OVER_VF_RES, 10,
BD71815_INT_TEMP_CHIP_OVER_VF_RES_MASK),
REGMAP_IRQ_REG(BD71815_INT_TEMP_CHIP_OVER_VF_DET, 10,
BD71815_INT_TEMP_CHIP_OVER_VF_DET_MASK),
/* RTC Alarm */
REGMAP_IRQ_REG(BD71815_INT_RTC0, 11, BD71815_INT_RTC0_MASK),
REGMAP_IRQ_REG(BD71815_INT_RTC1, 11, BD71815_INT_RTC1_MASK),
REGMAP_IRQ_REG(BD71815_INT_RTC2, 11, BD71815_INT_RTC2_MASK),
};
static const struct regmap_irq bd71828_irqs[] = {
REGMAP_IRQ_REG(BD71828_INT_BUCK1_OCP, 0, BD71828_INT_BUCK1_OCP_MASK),
REGMAP_IRQ_REG(BD71828_INT_BUCK2_OCP, 0, BD71828_INT_BUCK2_OCP_MASK),
REGMAP_IRQ_REG(BD71828_INT_BUCK3_OCP, 0, BD71828_INT_BUCK3_OCP_MASK),
REGMAP_IRQ_REG(BD71828_INT_BUCK4_OCP, 0, BD71828_INT_BUCK4_OCP_MASK),
REGMAP_IRQ_REG(BD71828_INT_BUCK5_OCP, 0, BD71828_INT_BUCK5_OCP_MASK),
REGMAP_IRQ_REG(BD71828_INT_BUCK6_OCP, 0, BD71828_INT_BUCK6_OCP_MASK),
REGMAP_IRQ_REG(BD71828_INT_BUCK7_OCP, 0, BD71828_INT_BUCK7_OCP_MASK),
REGMAP_IRQ_REG(BD71828_INT_PGFAULT, 0, BD71828_INT_PGFAULT_MASK),
/* DCIN1 interrupts */
REGMAP_IRQ_REG(BD71828_INT_DCIN_DET, 1, BD71828_INT_DCIN_DET_MASK),
REGMAP_IRQ_REG(BD71828_INT_DCIN_RMV, 1, BD71828_INT_DCIN_RMV_MASK),
REGMAP_IRQ_REG(BD71828_INT_CLPS_OUT, 1, BD71828_INT_CLPS_OUT_MASK),
REGMAP_IRQ_REG(BD71828_INT_CLPS_IN, 1, BD71828_INT_CLPS_IN_MASK),
/* DCIN2 interrupts */
REGMAP_IRQ_REG(BD71828_INT_DCIN_MON_RES, 2, BD71828_INT_DCIN_MON_RES_MASK),
REGMAP_IRQ_REG(BD71828_INT_DCIN_MON_DET, 2, BD71828_INT_DCIN_MON_DET_MASK),
REGMAP_IRQ_REG(BD71828_INT_LONGPUSH, 2, BD71828_INT_LONGPUSH_MASK),
REGMAP_IRQ_REG(BD71828_INT_MIDPUSH, 2, BD71828_INT_MIDPUSH_MASK),
REGMAP_IRQ_REG(BD71828_INT_SHORTPUSH, 2, BD71828_INT_SHORTPUSH_MASK),
REGMAP_IRQ_REG(BD71828_INT_PUSH, 2, BD71828_INT_PUSH_MASK),
REGMAP_IRQ_REG(BD71828_INT_WDOG, 2, BD71828_INT_WDOG_MASK),
REGMAP_IRQ_REG(BD71828_INT_SWRESET, 2, BD71828_INT_SWRESET_MASK),
/* Vsys */
REGMAP_IRQ_REG(BD71828_INT_VSYS_UV_RES, 3, BD71828_INT_VSYS_UV_RES_MASK),
REGMAP_IRQ_REG(BD71828_INT_VSYS_UV_DET, 3, BD71828_INT_VSYS_UV_DET_MASK),
REGMAP_IRQ_REG(BD71828_INT_VSYS_LOW_RES, 3, BD71828_INT_VSYS_LOW_RES_MASK),
REGMAP_IRQ_REG(BD71828_INT_VSYS_LOW_DET, 3, BD71828_INT_VSYS_LOW_DET_MASK),
REGMAP_IRQ_REG(BD71828_INT_VSYS_HALL_IN, 3, BD71828_INT_VSYS_HALL_IN_MASK),
REGMAP_IRQ_REG(BD71828_INT_VSYS_HALL_TOGGLE, 3, BD71828_INT_VSYS_HALL_TOGGLE_MASK),
REGMAP_IRQ_REG(BD71828_INT_VSYS_MON_RES, 3, BD71828_INT_VSYS_MON_RES_MASK),
REGMAP_IRQ_REG(BD71828_INT_VSYS_MON_DET, 3, BD71828_INT_VSYS_MON_DET_MASK),
/* Charger */
REGMAP_IRQ_REG(BD71828_INT_CHG_DCIN_ILIM, 4, BD71828_INT_CHG_DCIN_ILIM_MASK),
REGMAP_IRQ_REG(BD71828_INT_CHG_TOPOFF_TO_DONE, 4, BD71828_INT_CHG_TOPOFF_TO_DONE_MASK),
REGMAP_IRQ_REG(BD71828_INT_CHG_WDG_TEMP, 4, BD71828_INT_CHG_WDG_TEMP_MASK),
REGMAP_IRQ_REG(BD71828_INT_CHG_WDG_TIME, 4, BD71828_INT_CHG_WDG_TIME_MASK),
REGMAP_IRQ_REG(BD71828_INT_CHG_RECHARGE_RES, 4, BD71828_INT_CHG_RECHARGE_RES_MASK),
REGMAP_IRQ_REG(BD71828_INT_CHG_RECHARGE_DET, 4, BD71828_INT_CHG_RECHARGE_DET_MASK),
REGMAP_IRQ_REG(BD71828_INT_CHG_RANGED_TEMP_TRANSITION, 4,
BD71828_INT_CHG_RANGED_TEMP_TRANSITION_MASK),
REGMAP_IRQ_REG(BD71828_INT_CHG_STATE_TRANSITION, 4, BD71828_INT_CHG_STATE_TRANSITION_MASK),
/* Battery */
REGMAP_IRQ_REG(BD71828_INT_BAT_TEMP_NORMAL, 5, BD71828_INT_BAT_TEMP_NORMAL_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_TEMP_ERANGE, 5, BD71828_INT_BAT_TEMP_ERANGE_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_TEMP_WARN, 5, BD71828_INT_BAT_TEMP_WARN_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_REMOVED, 5, BD71828_INT_BAT_REMOVED_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_DETECTED, 5, BD71828_INT_BAT_DETECTED_MASK),
REGMAP_IRQ_REG(BD71828_INT_THERM_REMOVED, 5, BD71828_INT_THERM_REMOVED_MASK),
REGMAP_IRQ_REG(BD71828_INT_THERM_DETECTED, 5, BD71828_INT_THERM_DETECTED_MASK),
/* Battery Mon 1 */
REGMAP_IRQ_REG(BD71828_INT_BAT_DEAD, 6, BD71828_INT_BAT_DEAD_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_SHORTC_RES, 6, BD71828_INT_BAT_SHORTC_RES_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_SHORTC_DET, 6, BD71828_INT_BAT_SHORTC_DET_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_LOW_VOLT_RES, 6, BD71828_INT_BAT_LOW_VOLT_RES_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_LOW_VOLT_DET, 6, BD71828_INT_BAT_LOW_VOLT_DET_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_OVER_VOLT_RES, 6, BD71828_INT_BAT_OVER_VOLT_RES_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_OVER_VOLT_DET, 6, BD71828_INT_BAT_OVER_VOLT_DET_MASK),
/* Battery Mon 2 */
REGMAP_IRQ_REG(BD71828_INT_BAT_MON_RES, 7, BD71828_INT_BAT_MON_RES_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_MON_DET, 7, BD71828_INT_BAT_MON_DET_MASK),
/* Battery Mon 3 (Coulomb counter) */
REGMAP_IRQ_REG(BD71828_INT_BAT_CC_MON1, 8, BD71828_INT_BAT_CC_MON1_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_CC_MON2, 8, BD71828_INT_BAT_CC_MON2_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_CC_MON3, 8, BD71828_INT_BAT_CC_MON3_MASK),
/* Battery Mon 4 */
REGMAP_IRQ_REG(BD71828_INT_BAT_OVER_CURR_1_RES, 9, BD71828_INT_BAT_OVER_CURR_1_RES_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_OVER_CURR_1_DET, 9, BD71828_INT_BAT_OVER_CURR_1_DET_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_OVER_CURR_2_RES, 9, BD71828_INT_BAT_OVER_CURR_2_RES_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_OVER_CURR_2_DET, 9, BD71828_INT_BAT_OVER_CURR_2_DET_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_OVER_CURR_3_RES, 9, BD71828_INT_BAT_OVER_CURR_3_RES_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_OVER_CURR_3_DET, 9, BD71828_INT_BAT_OVER_CURR_3_DET_MASK),
/* Temperature */
REGMAP_IRQ_REG(BD71828_INT_TEMP_BAT_LOW_RES, 10, BD71828_INT_TEMP_BAT_LOW_RES_MASK),
REGMAP_IRQ_REG(BD71828_INT_TEMP_BAT_LOW_DET, 10, BD71828_INT_TEMP_BAT_LOW_DET_MASK),
REGMAP_IRQ_REG(BD71828_INT_TEMP_BAT_HI_RES, 10, BD71828_INT_TEMP_BAT_HI_RES_MASK),
REGMAP_IRQ_REG(BD71828_INT_TEMP_BAT_HI_DET, 10, BD71828_INT_TEMP_BAT_HI_DET_MASK),
REGMAP_IRQ_REG(BD71828_INT_TEMP_CHIP_OVER_125_RES, 10,
BD71828_INT_TEMP_CHIP_OVER_125_RES_MASK),
REGMAP_IRQ_REG(BD71828_INT_TEMP_CHIP_OVER_125_DET, 10,
BD71828_INT_TEMP_CHIP_OVER_125_DET_MASK),
REGMAP_IRQ_REG(BD71828_INT_TEMP_CHIP_OVER_VF_DET, 10,
BD71828_INT_TEMP_CHIP_OVER_VF_DET_MASK),
REGMAP_IRQ_REG(BD71828_INT_TEMP_CHIP_OVER_VF_RES, 10,
BD71828_INT_TEMP_CHIP_OVER_VF_RES_MASK),
/* RTC Alarm */
REGMAP_IRQ_REG(BD71828_INT_RTC0, 11, BD71828_INT_RTC0_MASK),
REGMAP_IRQ_REG(BD71828_INT_RTC1, 11, BD71828_INT_RTC1_MASK),
REGMAP_IRQ_REG(BD71828_INT_RTC2, 11, BD71828_INT_RTC2_MASK),
};
static const struct regmap_irq_chip bd71828_irq_chip = {
.name = "bd71828_irq",
.main_status = BD71828_REG_INT_MAIN,
.irqs = &bd71828_irqs[0],
.num_irqs = ARRAY_SIZE(bd71828_irqs),
.status_base = BD71828_REG_INT_BUCK,
.unmask_base = BD71828_REG_INT_MASK_BUCK,
.ack_base = BD71828_REG_INT_BUCK,
.init_ack_masked = true,
.num_regs = 12,
.num_main_regs = 1,
.sub_reg_offsets = &bd718xx_sub_irq_offsets[0],
.num_main_status_bits = 8,
.irq_reg_stride = 1,
};
static const struct regmap_irq_chip bd71815_irq_chip = {
.name = "bd71815_irq",
.main_status = BD71815_REG_INT_STAT,
.irqs = &bd71815_irqs[0],
.num_irqs = ARRAY_SIZE(bd71815_irqs),
.status_base = BD71815_REG_INT_STAT_01,
.unmask_base = BD71815_REG_INT_EN_01,
.ack_base = BD71815_REG_INT_STAT_01,
.init_ack_masked = true,
.num_regs = 12,
.num_main_regs = 1,
.sub_reg_offsets = &bd718xx_sub_irq_offsets[0],
.num_main_status_bits = 8,
.irq_reg_stride = 1,
};
static int set_clk_mode(struct device *dev, struct regmap *regmap,
int clkmode_reg)
{
int ret;
unsigned int open_drain;
ret = of_property_read_u32(dev->of_node, "rohm,clkout-open-drain", &open_drain);
if (ret) {
if (ret == -EINVAL)
return 0;
return ret;
}
if (open_drain > 1) {
dev_err(dev, "bad clk32kout mode configuration");
return -EINVAL;
}
if (open_drain)
return regmap_update_bits(regmap, clkmode_reg, OUT32K_MODE,
OUT32K_MODE_OPEN_DRAIN);
return regmap_update_bits(regmap, clkmode_reg, OUT32K_MODE,
OUT32K_MODE_CMOS);
}
static struct i2c_client *bd71828_dev;
static void bd71828_power_off(void)
{
while (true) {
s32 val;
/* We are not allowed to sleep, so do not use regmap involving mutexes here. */
val = i2c_smbus_read_byte_data(bd71828_dev, BD71828_REG_PS_CTRL_1);
if (val >= 0)
i2c_smbus_write_byte_data(bd71828_dev,
BD71828_REG_PS_CTRL_1,
BD71828_MASK_STATE_HBNT | (u8)val);
mdelay(500);
}
}
static void bd71828_remove_poweroff(void *data)
{
pm_power_off = NULL;
}
static int bd71828_i2c_probe(struct i2c_client *i2c)
{
struct regmap_irq_chip_data *irq_data;
int ret;
struct regmap *regmap;
const struct regmap_config *regmap_config;
const struct regmap_irq_chip *irqchip;
unsigned int chip_type;
struct mfd_cell *mfd;
int cells;
int button_irq;
int clkmode_reg;
if (!i2c->irq) {
dev_err(&i2c->dev, "No IRQ configured\n");
return -EINVAL;
}
chip_type = (unsigned int)(uintptr_t)
of_device_get_match_data(&i2c->dev);
switch (chip_type) {
case ROHM_CHIP_TYPE_BD71828:
mfd = bd71828_mfd_cells;
cells = ARRAY_SIZE(bd71828_mfd_cells);
regmap_config = &bd71828_regmap;
irqchip = &bd71828_irq_chip;
clkmode_reg = BD71828_REG_OUT32K;
button_irq = BD71828_INT_SHORTPUSH;
break;
case ROHM_CHIP_TYPE_BD71815:
mfd = bd71815_mfd_cells;
cells = ARRAY_SIZE(bd71815_mfd_cells);
regmap_config = &bd71815_regmap;
irqchip = &bd71815_irq_chip;
clkmode_reg = BD71815_REG_OUT32K;
/*
* If BD71817 support is needed we should be able to handle it
* with proper DT configs + BD71815 drivers + power-button.
* BD71815 data-sheet does not list the power-button IRQ so we
* don't use it.
*/
button_irq = 0;
break;
default:
dev_err(&i2c->dev, "Unknown device type");
return -EINVAL;
}
regmap = devm_regmap_init_i2c(i2c, regmap_config);
if (IS_ERR(regmap))
return dev_err_probe(&i2c->dev, PTR_ERR(regmap),
"Failed to initialize Regmap\n");
ret = devm_regmap_add_irq_chip(&i2c->dev, regmap, i2c->irq,
IRQF_ONESHOT, 0, irqchip, &irq_data);
if (ret)
return dev_err_probe(&i2c->dev, ret,
"Failed to add IRQ chip\n");
dev_dbg(&i2c->dev, "Registered %d IRQs for chip\n",
irqchip->num_irqs);
if (button_irq) {
ret = regmap_irq_get_virq(irq_data, button_irq);
if (ret < 0)
return dev_err_probe(&i2c->dev, ret,
"Failed to get the power-key IRQ\n");
button.irq = ret;
}
ret = set_clk_mode(&i2c->dev, regmap, clkmode_reg);
if (ret)
return ret;
ret = devm_mfd_add_devices(&i2c->dev, PLATFORM_DEVID_AUTO, mfd, cells,
NULL, 0, regmap_irq_get_domain(irq_data));
if (ret)
return dev_err_probe(&i2c->dev, ret, "Failed to create subdevices\n");
if (of_device_is_system_power_controller(i2c->dev.of_node) &&
chip_type == ROHM_CHIP_TYPE_BD71828) {
if (!pm_power_off) {
bd71828_dev = i2c;
pm_power_off = bd71828_power_off;
ret = devm_add_action_or_reset(&i2c->dev,
bd71828_remove_poweroff,
NULL);
} else {
dev_warn(&i2c->dev, "Poweroff callback already assigned\n");
}
}
return ret;
}
static const struct of_device_id bd71828_of_match[] = {
{
.compatible = "rohm,bd71828",
.data = (void *)ROHM_CHIP_TYPE_BD71828,
}, {
.compatible = "rohm,bd71815",
.data = (void *)ROHM_CHIP_TYPE_BD71815,
},
{ },
};
MODULE_DEVICE_TABLE(of, bd71828_of_match);
static struct i2c_driver bd71828_drv = {
.driver = {
.name = "rohm-bd71828",
.of_match_table = bd71828_of_match,
},
.probe = bd71828_i2c_probe,
};
module_i2c_driver(bd71828_drv);
MODULE_AUTHOR("Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>");
MODULE_DESCRIPTION("ROHM BD71828 Power Management IC driver");
MODULE_LICENSE("GPL");
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