Add the core MFD driver for max77705 PMIC. We define five sub-devices
for which the drivers will be added in subsequent patches.
Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
---
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 | 12 +++++++
drivers/mfd/Makefile | 2 ++
drivers/mfd/max77705.c | 248 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
include/linux/mfd/max77693-common.h | 6 +++-
include/linux/mfd/max77705-private.h | 180 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
6 files changed, 449 insertions(+), 1 deletion(-)
diff --git a/MAINTAINERS b/MAINTAINERS
index 9ed8bdaaaca9..4bc9c0da6adb 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -14078,6 +14078,7 @@ 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
@@ -14085,6 +14086,7 @@ 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 f9325bcce1b9..090eb3fb3d67 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -904,6 +904,18 @@ 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
+ help
+ Say yes here to add support for Maxim Integrated MAX77705.
+ 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 2a9f91e81af8..3dc5742c6aeb 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -167,6 +167,7 @@ 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
@@ -232,6 +233,7 @@ 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..553f20a6cdd5
--- /dev/null
+++ b/drivers/mfd/max77705.c
@@ -0,0 +1,248 @@
+// SPDX-License-Identifier: GPL-2.0+
+//
+// max77705.c - mfd core driver for the MAX77705
+//
+// 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/module.h>
+#include <linux/of.h>
+#include <linux/regmap.h>
+
+#define I2C_ADDR_CHG (0xD2 >> 1)
+#define I2C_ADDR_FG (0x6C >> 1)
+
+static struct mfd_cell max77705_devs[] = {
+ {
+ .name = "leds-max77705-rgb",
+ .of_compatible = "maxim,max77705-led",
+ },
+ {
+ .name = "max77705-fuel-gauge",
+ .of_compatible = "maxim,max77705-fuel-gauge",
+ },
+ {
+ .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_config max77705_chg_regmap_config = {
+ .reg_base = MAX77705_CHG_REG_BASE,
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = MAX77705_CHG_REG_SAFEOUT_CTRL,
+};
+
+static const struct regmap_config max77705_fg_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = MAX77705_FG_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 i2c_client *i2c_chg;
+ struct i2c_client *i2c_fg;
+ struct regmap_irq_chip_data *irq_data;
+ struct irq_domain *domain;
+ int ret;
+ unsigned int pmic_rev_value;
+ u8 pmic_ver, pmic_rev;
+
+
+ max77705 = devm_kzalloc(&i2c->dev, sizeof(struct max77693_dev),
+ GFP_KERNEL);
+ if (!max77705)
+ return -ENOMEM;
+
+ 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);
+ pmic_ver = ((pmic_rev_value & MAX77705_VERSION_MASK) >> MAX77705_VERSION_SHIFT);
+ dev_dbg(max77705->dev, "device found: rev.0x%x, ver.0x%x\n",
+ pmic_rev, pmic_ver);
+ if (pmic_rev != MAX77705_PASS3) {
+ dev_err(max77705->dev, "rev.0x%x is not tested",
+ pmic_rev);
+ return -ENODEV;
+ }
+
+ max77705->regmap_leds = devm_regmap_init_i2c(i2c, &max77705_leds_regmap_config);
+ if (IS_ERR(max77705->regmap_leds))
+ return PTR_ERR(max77705->regmap_leds);
+
+ i2c_chg = devm_i2c_new_dummy_device(max77705->dev,
+ i2c->adapter, I2C_ADDR_CHG);
+ max77705->regmap_chg = devm_regmap_init_i2c(i2c_chg,
+ &max77705_chg_regmap_config);
+ if (IS_ERR(max77705->regmap_chg))
+ return PTR_ERR(max77705->regmap_chg);
+
+ i2c_fg = devm_i2c_new_dummy_device(max77705->dev, i2c->adapter,
+ I2C_ADDR_FG);
+ max77705->regmap_fg = devm_regmap_init_i2c(i2c_fg,
+ &max77705_fg_regmap_config);
+ if (IS_ERR(max77705->regmap_fg))
+ return PTR_ERR(max77705->regmap_fg);
+
+ 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)
+ dev_err(max77705->dev, "failed to add irq chip: %d\n", ret);
+
+ /* 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)
+ dev_err(max77705->dev,
+ "Could not unmask interrupts in INTSRC: %d\n", ret);
+
+ 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) {
+ dev_err(max77705->dev, "failed to add MFD devices: %d\n", ret);
+ return ret;
+ }
+
+ 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_dt_ids[] = {
+ { .compatible = "maxim,max77705" },
+ { },
+};
+MODULE_DEVICE_TABLE(of, max77705_i2c_dt_ids);
+
+static struct i2c_driver max77705_i2c_driver = {
+ .driver = {
+ .name = "max77705",
+ .of_match_table = max77705_i2c_dt_ids,
+ .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 MFD 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..1b87b1ada21c 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,
@@ -25,6 +26,7 @@ struct max77693_dev {
struct i2c_client *i2c_muic; /* 0x4A , MUIC */
struct i2c_client *i2c_haptic; /* MAX77693: 0x90 , Haptic */
struct i2c_client *i2c_chg; /* MAX77843: 0xD2, Charger */
+ struct i2c_client *i2c_fg; /* MAX77843: 0xD2, Charger */
enum max77693_types type;
@@ -32,6 +34,8 @@ struct max77693_dev {
struct regmap *regmap_muic;
struct regmap *regmap_haptic; /* Only MAX77693 */
struct regmap *regmap_chg; /* Only MAX77843 */
+ struct regmap *regmap_fg; /* Only MAX77705 */
+ 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..8479d1b6cbe4
--- /dev/null
+++ b/include/linux/mfd/max77705-private.h
@@ -0,0 +1,180 @@
+/* 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
+
+#include <linux/pm.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,
+};
+
+extern const struct dev_pm_ops max77705_pm_ops;
+
+#endif /* __LINUX_MFD_MAX77705_PRIV_H */
--
2.39.2On Mon, 07 Oct 2024, Dzmitry Sankouski wrote:
> Add the core MFD driver for max77705 PMIC. We define five sub-devices
> for which the drivers will be added in subsequent patches.
>
> Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
>
> ---
> 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 | 12 +++++++
> drivers/mfd/Makefile | 2 ++
> drivers/mfd/max77705.c | 248 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> include/linux/mfd/max77693-common.h | 6 +++-
> include/linux/mfd/max77705-private.h | 180 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> 6 files changed, 449 insertions(+), 1 deletion(-)
>
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 9ed8bdaaaca9..4bc9c0da6adb 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -14078,6 +14078,7 @@ 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
> @@ -14085,6 +14086,7 @@ 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 f9325bcce1b9..090eb3fb3d67 100644
> --- a/drivers/mfd/Kconfig
> +++ b/drivers/mfd/Kconfig
> @@ -904,6 +904,18 @@ 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
> + help
> + Say yes here to add support for Maxim Integrated MAX77705.
"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 2a9f91e81af8..3dc5742c6aeb 100644
> --- a/drivers/mfd/Makefile
> +++ b/drivers/mfd/Makefile
> @@ -167,6 +167,7 @@ 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
> @@ -232,6 +233,7 @@ 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..553f20a6cdd5
> --- /dev/null
> +++ b/drivers/mfd/max77705.c
> @@ -0,0 +1,248 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +//
> +// max77705.c - mfd core driver for the MAX77705
No filenames in headers please - they have a habit of going out of date.
Drop references to "MFD":
* Maxim MAX77705 PMIC core driver
> +// Copyright (C) 2024 Dzmitry Sankouski <dsankouski@gmail.com>
Only the SPDX in C++ comments please.
> +
> +#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/module.h>
> +#include <linux/of.h>
> +#include <linux/regmap.h>
Alphabetical please.
> +
> +#define I2C_ADDR_CHG (0xD2 >> 1)
> +#define I2C_ADDR_FG (0x6C >> 1)
Why are these being shifted?
> +
> +static struct mfd_cell max77705_devs[] = {
> + {
> + .name = "leds-max77705-rgb",
Why is 'leds' prefixed here?
> + .of_compatible = "maxim,max77705-led",
Is it a straight LED or RGB?
> + },
> + {
> + .name = "max77705-fuel-gauge",
> + .of_compatible = "maxim,max77705-fuel-gauge",
> + },
> + {
> + .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_config max77705_chg_regmap_config = {
> + .reg_base = MAX77705_CHG_REG_BASE,
> + .reg_bits = 8,
> + .val_bits = 8,
> + .max_register = MAX77705_CHG_REG_SAFEOUT_CTRL,
> +};
> +
> +static const struct regmap_config max77705_fg_regmap_config = {
> + .reg_bits = 8,
> + .val_bits = 8,
> + .max_register = MAX77705_FG_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 i2c_client *i2c_chg;
> + struct i2c_client *i2c_fg;
> + struct regmap_irq_chip_data *irq_data;
> + struct irq_domain *domain;
> + int ret;
> + unsigned int pmic_rev_value;
> + u8 pmic_ver, pmic_rev;
> +
> +
> + max77705 = devm_kzalloc(&i2c->dev, sizeof(struct max77693_dev),
sizeof(*max77705)
> + GFP_KERNEL);
Why wrap here? You're using 100-chars above.
> + if (!max77705)
> + return -ENOMEM;
> +
> + 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);
> + pmic_ver = ((pmic_rev_value & MAX77705_VERSION_MASK) >> MAX77705_VERSION_SHIFT);
Over-bracketing.
> + dev_dbg(max77705->dev, "device found: rev.0x%x, ver.0x%x\n",
> + pmic_rev, pmic_ver);
Is this ever going to be useful after initial development?
> + if (pmic_rev != MAX77705_PASS3) {
> + dev_err(max77705->dev, "rev.0x%x is not tested",
> + pmic_rev);
... especially since you're going to print unexpected values out anyway.
> + return -ENODEV;
> + }
> +
> + max77705->regmap_leds = devm_regmap_init_i2c(i2c, &max77705_leds_regmap_config);
> + if (IS_ERR(max77705->regmap_leds))
> + return PTR_ERR(max77705->regmap_leds);
> +
> + i2c_chg = devm_i2c_new_dummy_device(max77705->dev,
> + i2c->adapter, I2C_ADDR_CHG);
'\n' here.
> + max77705->regmap_chg = devm_regmap_init_i2c(i2c_chg,
> + &max77705_chg_regmap_config);
Why not create this in the CHG driver?
> + if (IS_ERR(max77705->regmap_chg))
> + return PTR_ERR(max77705->regmap_chg);
> +
> + i2c_fg = devm_i2c_new_dummy_device(max77705->dev, i2c->adapter,
> + I2C_ADDR_FG);
> + max77705->regmap_fg = devm_regmap_init_i2c(i2c_fg,
> + &max77705_fg_regmap_config);
Why not create this in the FG driver?
> + if (IS_ERR(max77705->regmap_fg))
> + return PTR_ERR(max77705->regmap_fg);
> +
> + 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)
> + dev_err(max77705->dev, "failed to add irq chip: %d\n", ret);
> +
> + /* 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);
Why the cast?
> + if (ret < 0)
> + dev_err(max77705->dev,
> + "Could not unmask interrupts in INTSRC: %d\n", ret);
If it's an error, you should return.
> + domain = regmap_irq_get_domain(irq_data);
'\n' here.
> + ret = devm_mfd_add_devices(max77705->dev, PLATFORM_DEVID_NONE,
> + max77705_devs, ARRAY_SIZE(max77705_devs),
> + NULL, 0, domain);
> + if (ret) {
> + dev_err(max77705->dev, "failed to add MFD devices: %d\n", ret);
Failed to register child devices.
> + return ret;
> + }
> +
> + 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);
'\n' here.
> + 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);
'\n' here.
> + enable_irq(max77705->irq);
> +
> + return 0;
> +}
> +
Remove this line.
> +DEFINE_SIMPLE_DEV_PM_OPS(max77705_pm_ops, max77705_suspend, max77705_resume);
> +
> +static const struct of_device_id max77705_i2c_dt_ids[] = {
max77705_i2c_of_match
> + { .compatible = "maxim,max77705" },
> + { },
> +};
> +MODULE_DEVICE_TABLE(of, max77705_i2c_dt_ids);
> +
> +static struct i2c_driver max77705_i2c_driver = {
> + .driver = {
> + .name = "max77705",
> + .of_match_table = max77705_i2c_dt_ids,
> + .pm = pm_sleep_ptr(&max77705_pm_ops),
> + .suppress_bind_attrs = true,
> + },
> + .probe = max77705_i2c_probe,
Please get rid of all of this ugly tabbing.
> +};
> +module_i2c_driver(max77705_i2c_driver);
> +
> +MODULE_DESCRIPTION("Maxim MAX77705 MFD core driver");
Not "MFD" - as above.
> +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..1b87b1ada21c 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,
> @@ -25,6 +26,7 @@ struct max77693_dev {
> struct i2c_client *i2c_muic; /* 0x4A , MUIC */
> struct i2c_client *i2c_haptic; /* MAX77693: 0x90 , Haptic */
> struct i2c_client *i2c_chg; /* MAX77843: 0xD2, Charger */
> + struct i2c_client *i2c_fg; /* MAX77843: 0xD2, Charger */
>
> enum max77693_types type;
>
> @@ -32,6 +34,8 @@ struct max77693_dev {
> struct regmap *regmap_muic;
> struct regmap *regmap_haptic; /* Only MAX77693 */
> struct regmap *regmap_chg; /* Only MAX77843 */
> + struct regmap *regmap_fg; /* Only MAX77705 */
> + 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..8479d1b6cbe4
> --- /dev/null
> +++ b/include/linux/mfd/max77705-private.h
> @@ -0,0 +1,180 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +//
> +// Maxim MAX77705 definitions.
> +//
> +// Copyright (C) 2015 Samsung Electronics, Inc.
> +// Copyright (C) 2024 Dzmitry Sankouski <dsankouski@gmail.com>
No C++ please.
> +
> +#ifndef __LINUX_MFD_MAX77705_PRIV_H
> +#define __LINUX_MFD_MAX77705_PRIV_H
> +
> +#include <linux/pm.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
No C++ please.
> +#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,
Tab these out like above and below.
> + 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,
Here too.
> + 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,
> +};
> +
> +extern const struct dev_pm_ops max77705_pm_ops;
> +
> +#endif /* __LINUX_MFD_MAX77705_PRIV_H */
>
> --
> 2.39.2
>
--
Lee Jones [李琼斯]
> > + /* 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); > > Why the cast? > BIT macro creates a 64 bit constant value. When inverted, it overruns 32 bit value, causing compiler to warn on conversion like `warning: conversion from ‘long unsigned int’ to ‘unsigned int’`. -- Best regards, Dzmitry
> > diff --git a/drivers/mfd/max77705.c b/drivers/mfd/max77705.c > > new file mode 100644 > > index 000000000000..553f20a6cdd5 > > --- /dev/null > > +++ b/drivers/mfd/max77705.c > > @@ -0,0 +1,248 @@ > > +// SPDX-License-Identifier: GPL-2.0+ > > +// > > +// max77705.c - mfd core driver for the MAX77705 > (...) > > +// Copyright (C) 2024 Dzmitry Sankouski <dsankouski@gmail.com> > > Only the SPDX in C++ comments please. > This conflicts with https://patchwork.kernel.org/comment/25898728/ > > + (...) > > +++ b/include/linux/mfd/max77705-private.h > > @@ -0,0 +1,180 @@ > > +/* SPDX-License-Identifier: GPL-2.0 */ > > +// > > +// Maxim MAX77705 definitions. > > +// > > +// Copyright (C) 2015 Samsung Electronics, Inc. > > +// Copyright (C) 2024 Dzmitry Sankouski <dsankouski@gmail.com> > > No C++ please. This conflicts with https://patchwork.kernel.org/comment/25898728/ > > > + > > +#ifndef __LINUX_MFD_MAX77705_PRIV_H > > +#define __LINUX_MFD_MAX77705_PRIV_H > > + > > +#include <linux/pm.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 > > No C++ please. This conflicts with https://patchwork.kernel.org/comment/25898728/ -- Best regards, Dzmitry
On Mon, 21 Oct 2024, Dzmitry Sankouski wrote: > > > diff --git a/drivers/mfd/max77705.c b/drivers/mfd/max77705.c > > > new file mode 100644 > > > index 000000000000..553f20a6cdd5 > > > --- /dev/null > > > +++ b/drivers/mfd/max77705.c > > > @@ -0,0 +1,248 @@ > > > +// SPDX-License-Identifier: GPL-2.0+ > > > +// > > > +// max77705.c - mfd core driver for the MAX77705 > > > (...) > > > +// Copyright (C) 2024 Dzmitry Sankouski <dsankouski@gmail.com> > > > > Only the SPDX in C++ comments please. > > > This conflicts with https://patchwork.kernel.org/comment/25898728/ a) Mark is only talking about the file header > > > + > (...) > > > > +++ b/include/linux/mfd/max77705-private.h > > > @@ -0,0 +1,180 @@ > > > +/* SPDX-License-Identifier: GPL-2.0 */ > > > +// > > > +// Maxim MAX77705 definitions. > > > +// > > > +// Copyright (C) 2015 Samsung Electronics, Inc. > > > +// Copyright (C) 2024 Dzmitry Sankouski <dsankouski@gmail.com> > > > > No C++ please. > > This conflicts with https://patchwork.kernel.org/comment/25898728/ a) Mark is only talking about the file header b) Different subsystem, different rules. > > > > > > + > > > +#ifndef __LINUX_MFD_MAX77705_PRIV_H > > > +#define __LINUX_MFD_MAX77705_PRIV_H > > > + > > > +#include <linux/pm.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 > > > > No C++ please. > > This conflicts with https://patchwork.kernel.org/comment/25898728/ a) Mark is only talking about the file header b) Different subsystem, different rules. > > -- > > Best regards, > Dzmitry > -- Lee Jones [李琼斯]
© 2016 - 2026 Red Hat, Inc.