[PATCH 2/4] mfd: Add initial MFD driver for ATC260x PMICs

Manivannan Sadhasivam
2019-06-17T15:50:45Z

Add initial MFD driver for Actions Semi ATC260x PMICs. ATC260x series
PMICs integrates Audio Codec, Power management, Clock generation, and GPIO
controller blocks. This driver only supports Regulator functionality on
ATC2609A PMIC variant for now.

Since the PMICs can be accessed using both I2C and SPI busses, following
driver structure has been adapted:

----->atc260x-core.c (Implements core funtionalities)
/
ATC260x--------->atc260x-i2c.c (Implements I2C interface)
\
----->atc2609a-helpers.c (Implements ATC2609A specific helpers)

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
---
drivers/mfd/Kconfig | 22 +++
drivers/mfd/Makefile | 7 +
drivers/mfd/atc2609a-helpers.c | 91 +++++++++
drivers/mfd/atc260x-core.c | 85 ++++++++
drivers/mfd/atc260x-i2c.c | 98 ++++++++++
drivers/mfd/atc260x.h | 22 +++
include/linux/mfd/atc260x/atc2609a_regs.h | 228 ++++++++++++++++++++++
include/linux/mfd/atc260x/core.h | 64 ++++++
8 files changed, 617 insertions(+)
create mode 100644 drivers/mfd/atc2609a-helpers.c
create mode 100644 drivers/mfd/atc260x-core.c
create mode 100644 drivers/mfd/atc260x-i2c.c
create mode 100644 drivers/mfd/atc260x.h
create mode 100644 include/linux/mfd/atc260x/atc2609a_regs.h
create mode 100644 include/linux/mfd/atc260x/core.h

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index a17d275bf1d4..eb388505357b 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -1945,6 +1945,28 @@ config MFD_STMFX
additional drivers must be enabled in order to use the functionality
of the device.

+config MFD_ATC260X
+ tristate "Actions Semi ATC260x PMICs"
+ select MFD_CORE
+ select REGMAP
+ select REGMAP_IRQ
+ help
+ Support for the Actions Semi ATC260x PMICs.
+
+config MFD_ATC260X_I2C
+ tristate "Actions Semi ATC260x PMICs with I2C"
+ depends on MFD_ATC260X
+ depends on I2C
+ select REGMAP_I2C
+ help
+ Support for the Actions Semi ATC260x PMICs controlled via I2C.
+
+config MFD_ATC2609A
+ bool "Actions Semi ATC2609A PMIC"
+ depends on MFD_ATC260X
+ help
+ Support for Actions Semi ATC2609A PMIC
+
menu "Multimedia Capabilities Port drivers"
depends on ARCH_SA1100

diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 52b1a90ff515..a87e7ed55a02 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -249,3 +249,10 @@ obj-$(CONFIG_MFD_SC27XX_PMIC) += sprd-sc27xx-spi.o
obj-$(CONFIG_RAVE_SP_CORE) += rave-sp.o
obj-$(CONFIG_MFD_ROHM_BD718XX) += rohm-bd718x7.o
obj-$(CONFIG_MFD_STMFX) += stmfx.o
+
+atc260x-objs := atc260x-core.o
+ifeq ($(CONFIG_MFD_ATC2609A),y)
+atc260x-objs += atc2609a-helpers.o
+endif
+obj-$(CONFIG_MFD_ATC260X) += atc260x.o
+obj-$(CONFIG_MFD_ATC260X_I2C) += atc260x-i2c.o
diff --git a/drivers/mfd/atc2609a-helpers.c b/drivers/mfd/atc2609a-helpers.c
new file mode 100644
index 000000000000..6d304ea61552
--- /dev/null
+++ b/drivers/mfd/atc2609a-helpers.c
@@ -0,0 +1,91 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Helper functions for ATC2609A PMIC
+ *
+ * Copyright (C) 2019 Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+ */
+
+#include <linux/mfd/atc260x/core.h>
+#include <linux/mfd/core.h>
+#include <linux/of.h>
+#include <linux/regmap.h>
+
+#include "atc260x.h"
+
+const struct regmap_config atc2609a_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 16,
+ .max_register = ATC2609A_SADDR,
+ .cache_type = REGCACHE_NONE,
+};
+
+const struct regmap_irq atc2609a_irqs[] = {
+ [ATC2609A_IRQ_AUDIO] = {
+ .reg_offset = 0,
+ .mask = BIT(0),
+ },
+ [ATC2609A_IRQ_OV] = {
+ .reg_offset = 0,
+ .mask = BIT(1),
+ },
+ [ATC2609A_IRQ_OC] = {
+ .reg_offset = 0,
+ .mask = BIT(2),
+ },
+ [ATC2609A_IRQ_OT] = {
+ .reg_offset = 0,
+ .mask = BIT(3),
+ },
+ [ATC2609A_IRQ_UV] = {
+ .reg_offset = 0,
+ .mask = BIT(4),
+ },
+ [ATC2609A_IRQ_ALARM] = {
+ .reg_offset = 0,
+ .mask = BIT(5),
+ },
+ [ATC2609A_IRQ_ONOFF] = {
+ .reg_offset = 0,
+ .mask = BIT(6),
+ },
+ [ATC2609A_IRQ_WKUP] = {
+ .reg_offset = 0,
+ .mask = BIT(7),
+ },
+ [ATC2609A_IRQ_IR] = {
+ .reg_offset = 0,
+ .mask = BIT(8),
+ },
+ [ATC2609A_IRQ_REMCON] = {
+ .reg_offset = 0,
+ .mask = BIT(9),
+ },
+ [ATC2609A_IRQ_POWER_IN] = {
+ .reg_offset = 0,
+ .mask = BIT(10),
+ },
+};
+
+const struct regmap_irq_chip atc2609a_regmap_irq_chip = {
+ .name = "atc2609a",
+ .irqs = atc2609a_irqs,
+ .num_irqs = ARRAY_SIZE(atc2609a_irqs),
+ .num_regs = 1,
+ .status_base = ATC2609A_INTS_PD,
+ .mask_base = ATC2609A_INTS_MSK,
+ .mask_invert = true,
+};
+
+int atc2609a_dev_init(struct atc260x *atc260x)
+{
+ /* Initialize interrupt block */
+ atc260x_cmu_reset(atc260x, ATC2609A_CMU_DEVRST, ATC260X_CMU_INTS,
+ ATC260X_CMU_INTS);
+
+ /* Disable all interrupt sources */
+ regmap_write(atc260x->regmap, ATC2609A_INTS_MSK, 0);
+
+ /* Enable EXTIRQ pad */
+ return regmap_update_bits(atc260x->regmap, ATC2609A_PAD_EN,
+ BIT(0), BIT(0));
+}
diff --git a/drivers/mfd/atc260x-core.c b/drivers/mfd/atc260x-core.c
new file mode 100644
index 000000000000..e65f1cb2648b
--- /dev/null
+++ b/drivers/mfd/atc260x-core.c
@@ -0,0 +1,85 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Core MFD support for ATC260x PMICs
+ *
+ * Copyright (C) 2019 Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+ */
+
+#include <linux/interrupt.h>
+#include <linux/mfd/atc260x/core.h>
+#include <linux/mfd/core.h>
+#include <linux/of.h>
+#include <linux/regmap.h>
+
+#include "atc260x.h"
+
+void atc260x_cmu_reset(struct atc260x *atc260x, u32 reg, u8 mask, u32 bit)
+{
+ /* Assert reset */
+ regmap_update_bits(atc260x->regmap, reg, mask, ~bit);
+
+ /* De-assert reset */
+ regmap_update_bits(atc260x->regmap, reg, mask, bit);
+}
+
+int atc260x_core_init(struct atc260x *atc260x)
+{
+ struct device *dev = atc260x->dev;
+ unsigned int chip_rev;
+ int ret;
+
+ if (!atc260x->irq) {
+ dev_err(dev, "No interrupt support\n");
+ return -EINVAL;
+ }
+
+ /* Initialize the hardware */
+ atc260x->dev_init(atc260x);
+
+ ret = regmap_read(atc260x->regmap, atc260x->rev_reg, &chip_rev);
+ if (ret) {
+ dev_err(dev, "Failed to read revision register\n");
+ return ret;
+ }
+
+ if (chip_rev < 0 || chip_rev > 31) {
+ dev_err(dev, "Unknown chip revision: %d\n", ret);
+ return -EINVAL;
+ }
+
+ chip_rev = __ffs(chip_rev + 1U);
+
+ dev_info(dev, "%s chip revision: %d\n", atc260x->type_name, chip_rev);
+
+ ret = regmap_add_irq_chip(atc260x->regmap, atc260x->irq,
+ IRQF_ONESHOT, -1,
+ atc260x->regmap_irq_chip, &atc260x->irq_data);
+ if (ret) {
+ dev_err(dev, "Failed to add irq_chip %d\n", ret);
+ return ret;
+ }
+
+ ret = devm_mfd_add_devices(dev, PLATFORM_DEVID_NONE,
+ atc260x->cells, atc260x->nr_cells, NULL, 0,
+ regmap_irq_get_domain(atc260x->irq_data));
+ if (ret) {
+ dev_err(dev, "Failed to add MFD devices %d\n", ret);
+ goto err_irq;
+ }
+
+ return 0;
+
+err_irq:
+ regmap_del_irq_chip(atc260x->irq, atc260x->irq_data);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(atc260x_core_init);
+
+int atc260x_core_exit(struct atc260x *atc260x)
+{
+ regmap_del_irq_chip(atc260x->irq, atc260x->irq_data);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(atc260x_core_exit);
diff --git a/drivers/mfd/atc260x-i2c.c b/drivers/mfd/atc260x-i2c.c
new file mode 100644
index 000000000000..3b7e8c1f5ac5
--- /dev/null
+++ b/drivers/mfd/atc260x-i2c.c
@@ -0,0 +1,98 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * I2C bus interface for ATC260x PMICs
+ *
+ * Copyright (C) 2019 Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+ */
+
+#include <linux/i2c.h>
+#include <linux/mfd/atc260x/core.h>
+#include <linux/mfd/core.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/regmap.h>
+
+#include "atc260x.h"
+
+const struct mfd_cell atc2609a_mfd_cells[] = {
+ { .name = "atc260x-regulator", },
+};
+
+static int atc260x_i2c_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct atc260x *atc260x;
+ const void *of_data;
+ unsigned long atc260x_type;
+
+ atc260x = devm_kzalloc(&client->dev, sizeof(*atc260x), GFP_KERNEL);
+ if (!atc260x)
+ return -ENOMEM;
+
+ of_data = of_device_get_match_data(&client->dev);
+ if (!of_data)
+ return -ENODEV;
+
+ atc260x_type = (unsigned long)of_data;
+
+ switch (atc260x_type) {
+ case ATC2609A:
+ atc260x->regmap_cfg = &atc2609a_regmap_config;
+ atc260x->regmap_irq_chip = &atc2609a_regmap_irq_chip;
+ atc260x->cells = atc2609a_mfd_cells;
+ atc260x->nr_cells = ARRAY_SIZE(atc2609a_mfd_cells);
+ atc260x->type_name = "atc2609a";
+ atc260x->rev_reg = ATC2609A_CHIP_VER;
+ atc260x->dev_init = atc2609a_dev_init;
+ break;
+ default:
+ dev_err(&client->dev,
+ "Unsupported ATC260x I2C device type %ld\n",
+ atc260x_type);
+ return -EINVAL;
+ }
+
+ atc260x->regmap = devm_regmap_init_i2c(client, atc260x->regmap_cfg);
+ if (IS_ERR(atc260x->regmap)) {
+ dev_err(&client->dev, "regmap initialization failed\n");
+ return PTR_ERR(atc260x->regmap);
+ }
+
+ i2c_set_clientdata(client, atc260x);
+ atc260x->type = atc260x_type;
+ atc260x->dev = &client->dev;
+ atc260x->irq = client->irq;
+
+ return atc260x_core_init(atc260x);
+}
+
+static int atc260x_i2c_remove(struct i2c_client *client)
+{
+ struct atc260x *atc260x = dev_get_drvdata(&client->dev);
+
+ atc260x_core_exit(atc260x);
+
+ return 0;
+}
+
+const struct of_device_id atc260x_of_match[] = {
+ { .compatible = "actions,atc2609a", .data = (void *)ATC2609A },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(i2c, atc260x_of_match);
+
+static struct i2c_driver atc260x_i2c_driver = {
+ .driver = {
+ .name = "atc260x",
+ .of_match_table = of_match_ptr(atc260x_of_match),
+ },
+ .probe = atc260x_i2c_probe,
+ .remove = atc260x_i2c_remove,
+};
+
+module_i2c_driver(atc260x_i2c_driver);
+
+MODULE_DESCRIPTION("ATC260x PMICs I2C bus interface");
+MODULE_AUTHOR("Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/mfd/atc260x.h b/drivers/mfd/atc260x.h
new file mode 100644
index 000000000000..30fc66dfba04
--- /dev/null
+++ b/drivers/mfd/atc260x.h
@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * MFD internals for ATC260x PMICs
+ *
+ * Copyright (C) 2019 Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+ */
+
+#ifndef ATC260X_MFD_H
+#define ATC260X_MFD_H
+
+extern const struct of_device_id atc260x_of_match[];
+int atc260x_core_init(struct atc260x *atc260x);
+int atc260x_core_exit(struct atc260x *atc260x);
+void atc260x_cmu_reset(struct atc260x *atc260x, u32 reg, u8 mask, u32 bit);
+
+extern const struct regmap_config atc2609a_regmap_config;
+extern const struct mfd_cell atc2609a_mfd_cells[];
+extern const struct regmap_irq_chip atc2609a_regmap_irq_chip;
+extern const struct regmap_irq atc2609a_irqs[];
+int atc2609a_dev_init(struct atc260x *atc260x);
+
+#endif /* ATC260X_MFD_H */
diff --git a/include/linux/mfd/atc260x/atc2609a_regs.h b/include/linux/mfd/atc260x/atc2609a_regs.h
new file mode 100644
index 000000000000..851fb3dadd4f
--- /dev/null
+++ b/include/linux/mfd/atc260x/atc2609a_regs.h
@@ -0,0 +1,228 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * ATC2609A PMIC register definitions
+ *
+ * Copyright (C) 2019 Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+ */
+
+#ifndef __ATC2609A_REGS_H__
+#define __ATC2609A_REGS_H__
+
+enum atc2609a_irq_def {
+ ATC2609A_IRQ_AUDIO = 0,
+ ATC2609A_IRQ_OV = 1,
+ ATC2609A_IRQ_OC = 2,
+ ATC2609A_IRQ_OT = 3,
+ ATC2609A_IRQ_UV = 4,
+ ATC2609A_IRQ_ALARM = 5,
+ ATC2609A_IRQ_ONOFF = 6,
+ ATC2609A_IRQ_WKUP = 7,
+ ATC2609A_IRQ_IR = 8,
+ ATC2609A_IRQ_REMCON = 9,
+ ATC2609A_IRQ_POWER_IN = 10,
+};
+
+/* PMU Register */
+#define ATC2609A_PMU_SYS_CTL0 0x00
+#define ATC2609A_PMU_SYS_CTL1 0x01
+#define ATC2609A_PMU_SYS_CTL2 0x02
+#define ATC2609A_PMU_SYS_CTL3 0x03
+#define ATC2609A_PMU_SYS_CTL4 0x04
+#define ATC2609A_PMU_SYS_CTL5 0x05
+#define ATC2609A_PMU_SYS_CTL6 0x06
+#define ATC2609A_PMU_SYS_CTL7 0x07
+#define ATC2609A_PMU_SYS_CTL8 0x08
+#define ATC2609A_PMU_SYS_CTL9 0x09
+#define ATC2609A_PMU_BAT_CTL0 0x0A
+#define ATC2609A_PMU_BAT_CTL1 0x0B
+#define ATC2609A_PMU_VBUS_CTL0 0x0C
+#define ATC2609A_PMU_VBUS_CTL1 0x0D
+#define ATC2609A_PMU_WALL_CTL0 0x0E
+#define ATC2609A_PMU_WALL_CTL1 0x0F
+#define ATC2609A_PMU_SYS_PENDING 0x10
+#define ATC2609A_PMU_APDS_CTL0 0x11
+#define ATC2609A_PMU_APDS_CTL1 0x12
+#define ATC2609A_PMU_APDS_CTL2 0x13
+#define ATC2609A_PMU_CHARGER_CTL 0x14
+#define ATC2609A_PMU_BAKCHARGER_CTL 0x15
+#define ATC2609A_PMU_SWCHG_CTL0 0x16
+#define ATC2609A_PMU_SWCHG_CTL1 0x17
+#define ATC2609A_PMU_SWCHG_CTL2 0x18
+#define ATC2609A_PMU_SWCHG_CTL3 0x19
+#define ATC2609A_PMU_SWCHG_CTL4 0x1A
+#define ATC2609A_PMU_DC_OSC 0x1B
+#define ATC2609A_PMU_DC0_CTL0 0x1C
+#define ATC2609A_PMU_DC0_CTL1 0x1D
+#define ATC2609A_PMU_DC0_CTL2 0x1E
+#define ATC2609A_PMU_DC0_CTL3 0x1F
+#define ATC2609A_PMU_DC0_CTL4 0x20
+#define ATC2609A_PMU_DC0_CTL5 0x21
+#define ATC2609A_PMU_DC0_CTL6 0x22
+#define ATC2609A_PMU_DC1_CTL0 0x23
+#define ATC2609A_PMU_DC1_CTL1 0x24
+#define ATC2609A_PMU_DC1_CTL2 0x25
+#define ATC2609A_PMU_DC1_CTL3 0x26
+#define ATC2609A_PMU_DC1_CTL4 0x27
+#define ATC2609A_PMU_DC1_CTL5 0x28
+#define ATC2609A_PMU_DC1_CTL6 0x29
+#define ATC2609A_PMU_DC2_CTL0 0x2A
+#define ATC2609A_PMU_DC2_CTL1 0x2B
+#define ATC2609A_PMU_DC2_CTL2 0x2C
+#define ATC2609A_PMU_DC2_CTL3 0x2D
+#define ATC2609A_PMU_DC2_CTL4 0x2E
+#define ATC2609A_PMU_DC2_CTL5 0x2F
+#define ATC2609A_PMU_DC2_CTL6 0x30
+#define ATC2609A_PMU_DC3_CTL0 0x31
+#define ATC2609A_PMU_DC3_CTL1 0x32
+#define ATC2609A_PMU_DC3_CTL2 0x33
+#define ATC2609A_PMU_DC3_CTL3 0x34
+#define ATC2609A_PMU_DC3_CTL4 0x35
+#define ATC2609A_PMU_DC3_CTL5 0x36
+#define ATC2609A_PMU_DC3_CTL6 0x37
+#define ATC2609A_PMU_DC_ZR 0x38
+#define ATC2609A_PMU_LDO0_CTL0 0x39
+#define ATC2609A_PMU_LDO0_CTL1 0x3A
+#define ATC2609A_PMU_LDO1_CTL0 0x3B
+#define ATC2609A_PMU_LDO1_CTL1 0x3C
+#define ATC2609A_PMU_LDO2_CTL0 0x3D
+#define ATC2609A_PMU_LDO2_CTL1 0x3E
+#define ATC2609A_PMU_LDO3_CTL0 0x3F
+#define ATC2609A_PMU_LDO3_CTL1 0x40
+#define ATC2609A_PMU_LDO4_CTL0 0x41
+#define ATC2609A_PMU_LDO4_CTL1 0x42
+#define ATC2609A_PMU_LDO5_CTL0 0x43
+#define ATC2609A_PMU_LDO5_CTL1 0x44
+#define ATC2609A_PMU_LDO6_CTL0 0x45
+#define ATC2609A_PMU_LDO6_CTL1 0x46
+#define ATC2609A_PMU_LDO7_CTL0 0x47
+#define ATC2609A_PMU_LDO7_CTL1 0x48
+#define ATC2609A_PMU_LDO8_CTL0 0x49
+#define ATC2609A_PMU_LDO8_CTL1 0x4A
+#define ATC2609A_PMU_LDO9_CTL 0x4B
+#define ATC2609A_PMU_OV_INT_EN 0x4C
+#define ATC2609A_PMU_OV_STATUS 0x4D
+#define ATC2609A_PMU_UV_INT_EN 0x4E
+#define ATC2609A_PMU_UV_STATUS 0x4F
+#define ATC2609A_PMU_OC_INT_EN 0x50
+#define ATC2609A_PMU_OC_STATUS 0x51
+#define ATC2609A_PMU_OT_CTL 0x52
+#define ATC2609A_PMU_CM_CTL0 0x53
+#define ATC2609A_PMU_FW_USE0 0x54
+#define ATC2609A_PMU_FW_USE1 0x55
+#define ATC2609A_PMU_ADC12B_I 0x56
+#define ATC2609A_PMU_ADC12B_V 0x57
+#define ATC2609A_PMU_ADC12B_DUMMY 0x58
+#define ATC2609A_PMU_AUXADC_CTL0 0x59
+#define ATC2609A_PMU_AUXADC_CTL1 0x5A
+#define ATC2609A_PMU_BATVADC 0x5B
+#define ATC2609A_PMU_BATIADC 0x5C
+#define ATC2609A_PMU_WALLVADC 0x5D
+#define ATC2609A_PMU_WALLIADC 0x5E
+#define ATC2609A_PMU_VBUSVADC 0x5F
+#define ATC2609A_PMU_VBUSIADC 0x60
+#define ATC2609A_PMU_SYSPWRADC 0x61
+#define ATC2609A_PMU_REMCONADC 0x62
+#define ATC2609A_PMU_SVCCADC 0x63
+#define ATC2609A_PMU_CHGIADC 0x64
+#define ATC2609A_PMU_IREFADC 0x65
+#define ATC2609A_PMU_BAKBATADC 0x66
+#define ATC2609A_PMU_ICTEMPADC 0x67
+#define ATC2609A_PMU_AUXADC0 0x68
+#define ATC2609A_PMU_AUXADC1 0x69
+#define ATC2609A_PMU_AUXADC2 0x6A
+#define ATC2609A_PMU_AUXADC3 0x6B
+#define ATC2609A_PMU_ICTEMPADC_ADJ 0x6C
+#define ATC2609A_PMU_BDG_CTL 0x6D
+#define ATC2609A_RTC_CTL 0x6E
+#define ATC2609A_RTC_MSALM 0x6F
+#define ATC2609A_RTC_HALM 0x70
+#define ATC2609A_RTC_YMDALM 0x71
+#define ATC2609A_RTC_MS 0x72
+#define ATC2609A_RTC_H 0x73
+#define ATC2609A_RTC_DC 0x74
+#define ATC2609A_RTC_YMD 0x75
+#define ATC2609A_EFUSE_DAT 0x76
+#define ATC2609A_EFUSECRTL1 0x77
+#define ATC2609A_EFUSECRTL2 0x78
+#define ATC2609A_PMU_DC4_CTL0 0x79
+#define ATC2609A_PMU_DC4_CTL1 0x7A
+#define ATC2609A_PMU_DC4_CTL2 0x7B
+#define ATC2609A_PMU_DC4_CTL3 0x7C
+#define ATC2609A_PMU_DC4_CTL4 0x7D
+#define ATC2609A_PMU_DC4_CTL5 0x7E
+#define ATC2609A_PMU_DC4_CTL6 0x7F
+#define ATC2609A_PMU_PWR_STATUS 0x80
+#define ATC2609A_PMU_S2_PWR 0x81
+#define ATC2609A_CLMT_CTL0 0x82
+#define ATC2609A_CLMT_DATA0 0x83
+#define ATC2609A_CLMT_DATA1 0x84
+#define ATC2609A_CLMT_DATA2 0x85
+#define ATC2609A_CLMT_DATA3 0x86
+#define ATC2609A_CLMT_ADD0 0x87
+#define ATC2609A_CLMT_ADD1 0x88
+#define ATC2609A_CLMT_OCV_TABLE 0x89
+#define ATC2609A_CLMT_R_TABLE 0x8A
+#define ATC2609A_PMU_PWRON_CTL0 0x8D
+#define ATC2609A_PMU_PWRON_CTL1 0x8E
+#define ATC2609A_PMU_PWRON_CTL2 0x8F
+#define ATC2609A_IRC_CTL 0x90
+#define ATC2609A_IRC_STAT 0x91
+#define ATC2609A_IRC_CC 0x92
+#define ATC2609A_IRC_KDC 0x93
+#define ATC2609A_IRC_WK 0x94
+#define ATC2609A_IRC_RCC 0x95
+
+/* AUDIO_OUT Register */
+#define ATC2609A_AUDIOINOUT_CTL 0xA0
+#define ATC2609A_AUDIO_DEBUGOUTCTL 0xA1
+#define ATC2609A_DAC_DIGITALCTL 0xA2
+#define ATC2609A_DAC_VOLUMECTL0 0xA3
+#define ATC2609A_DAC_ANALOG0 0xA4
+#define ATC2609A_DAC_ANALOG1 0xA5
+#define ATC2609A_DAC_ANALOG2 0xA6
+#define ATC2609A_DAC_ANALOG3 0xA7
+
+/* AUDIO_IN Register */
+#define ATC2609A_ADC_DIGITALCTL 0xA8
+#define ATC2609A_ADC_HPFCTL 0xA9
+#define ATC2609A_ADC_CTL 0xAA
+#define ATC2609A_AGC_CTL0 0xAB
+#define ATC2609A_AGC_CTL1 0xAC
+#define ATC2609A_AGC_CTL2 0xAD
+#define ATC2609A_ADC_ANALOG0 0xAE
+#define ATC2609A_ADC_ANALOG1 0xAF
+
+/* PCM_IF Register */
+#define ATC2609A_PCM0_CTL 0xB0
+#define ATC2609A_PCM1_CTL 0xB1
+#define ATC2609A_PCM2_CTL 0xB2
+#define ATC2609A_PCMIF_CTL 0xB3
+
+/* CMU_CONTROL Register */
+#define ATC2609A_CMU_DEVRST 0xC1
+
+/* INTS Register */
+#define ATC2609A_INTS_PD 0xC8
+#define ATC2609A_INTS_MSK 0xC9
+
+/* MFP Register */
+#define ATC2609A_MFP_CTL 0xD0
+#define ATC2609A_PAD_VSEL 0xD1
+#define ATC2609A_GPIO_OUTEN 0xD2
+#define ATC2609A_GPIO_INEN 0xD3
+#define ATC2609A_GPIO_DAT 0xD4
+#define ATC2609A_PAD_DRV 0xD5
+#define ATC2609A_PAD_EN 0xD6
+#define ATC2609A_DEBUG_SEL 0xD7
+#define ATC2609A_DEBUG_IE 0xD8
+#define ATC2609A_DEBUG_OE 0xD9
+#define ATC2609A_CHIP_VER 0xDC
+
+/* PWSI Register */
+#define ATC2609A_PWSI_CTL 0xF0
+#define ATC2609A_PWSI_STATUS 0xF1
+
+/* TWSI Register */
+#define ATC2609A_SADDR 0xFF
+
+#endif /* __ATC2609A_REGS_H__ */
diff --git a/include/linux/mfd/atc260x/core.h b/include/linux/mfd/atc260x/core.h
new file mode 100644
index 000000000000..9d75eca731d4
--- /dev/null
+++ b/include/linux/mfd/atc260x/core.h
@@ -0,0 +1,64 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Core MFD defines for ATC260x PMICs
+ *
+ * Copyright (C) 2019 Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+ */
+
+#ifndef __ATC260X_CORE_H__
+#define __ATC260X_CORE_H__
+
+#include <linux/mfd/atc260x/atc2609a_regs.h>
+
+enum atc260x_type {
+ ATC2603A = 0,
+ ATC2603C = 1,
+ ATC2609A = 2,
+};
+
+enum atc260x_reg {
+ ATC2609A_ID_DCDC0,
+ ATC2609A_ID_DCDC1,
+ ATC2609A_ID_DCDC2,
+ ATC2609A_ID_DCDC3,
+ ATC2609A_ID_DCDC4,
+ ATC2609A_ID_LDO0,
+ ATC2609A_ID_LDO1,
+ ATC2609A_ID_LDO2,
+ ATC2609A_ID_LDO3,
+ ATC2609A_ID_LDO4,
+ ATC2609A_ID_LDO5,
+ ATC2609A_ID_LDO6,
+ ATC2609A_ID_LDO7,
+ ATC2609A_ID_LDO8,
+ ATC2609A_ID_LDO9,
+ ATC2609A_ID_MAX,
+};
+
+enum atc260x_cmu_bits {
+ ATC260X_CMU_TP = 0,
+ ATC260X_CMU_MFP = 1,
+ ATC260X_CMU_INTS = 2,
+ ATC260X_CMU_ETHPHY = 3,
+ ATC260X_CMU_AUDIO = 4,
+ ATC260X_CMU_PWSI = 5,
+};
+
+struct atc260x {
+ struct device *dev;
+ struct regmap_irq_chip_data *irq_data;
+ struct regmap *regmap;
+ const struct regmap_config *regmap_cfg;
+ const struct regmap_irq_chip *regmap_irq_chip;
+ const struct mfd_cell *cells;
+ int nr_cells;
+ int irq;
+
+ enum atc260x_type type;
+ const char *type_name;
+ unsigned int rev_reg;
+
+ int (*dev_init)(struct atc260x *atc260x);
+};
+
+#endif /* __ATC260X_CORE_H__ */
--
2.17.1