On Mon, 08 Sep 2014, Jacob Pan wrote:

> More XPowers PMIC devices can be supported by extending this driver, so
> rename it to axp2xx to cover axp288 variant.
> 
> Signed-off-by: Jacob Pan <jacob.jun....@linux.intel.com>
> ---
>  drivers/mfd/Kconfig        |   7 +-
>  drivers/mfd/Makefile       |   2 +-
>  drivers/mfd/axp20x.c       | 258 
> ---------------------------------------------
>  drivers/mfd/axp2xx.c       | 258 
> +++++++++++++++++++++++++++++++++++++++++++++
>  include/linux/mfd/axp20x.h | 180 -------------------------------
>  include/linux/mfd/axp2xx.h | 180 +++++++++++++++++++++++++++++++
>  6 files changed, 443 insertions(+), 442 deletions(-)
>  delete mode 100644 drivers/mfd/axp20x.c
>  create mode 100644 drivers/mfd/axp2xx.c
>  delete mode 100644 include/linux/mfd/axp20x.h
>  create mode 100644 include/linux/mfd/axp2xx.h

Please resubmit using `git format-patch -M`

> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> index de5abf2..42a70a3 100644
> --- a/drivers/mfd/Kconfig
> +++ b/drivers/mfd/Kconfig
> @@ -67,14 +67,15 @@ config MFD_BCM590XX
>       help
>         Support for the BCM590xx PMUs from Broadcom
>  
> -config MFD_AXP20X
> -     bool "X-Powers AXP20X"
> +config MFD_AXP2XX
> +     bool "X-Powers AXP2XX"
>       select MFD_CORE
>       select REGMAP_I2C
>       select REGMAP_IRQ
>       depends on I2C=y
>       help
> -       If you say Y here you get support for the X-Powers AXP202 and AXP209.
> +       If you say Y here you get support for the X-Powers AXP202, AXP209 and
> +       AXP288 power management IC (PMIC).
>         This driver include only the core APIs. You have to select individual
>         components like regulators or the PEK (Power Enable Key) under the
>         corresponding menus.
> diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
> index f001487..55d76b3 100644
> --- a/drivers/mfd/Makefile
> +++ b/drivers/mfd/Makefile
> @@ -103,7 +103,7 @@ obj-$(CONFIG_PMIC_DA9052) += da9052-irq.o
>  obj-$(CONFIG_PMIC_DA9052)    += da9052-core.o
>  obj-$(CONFIG_MFD_DA9052_SPI) += da9052-spi.o
>  obj-$(CONFIG_MFD_DA9052_I2C) += da9052-i2c.o
> -obj-$(CONFIG_MFD_AXP20X)     += axp20x.o
> +obj-$(CONFIG_MFD_AXP2XX)     += axp2xx.o
>  
>  obj-$(CONFIG_MFD_LP3943)     += lp3943.o
>  obj-$(CONFIG_MFD_LP8788)     += lp8788.o lp8788-irq.o
> diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c
> deleted file mode 100644
> index dee6539..0000000
> --- a/drivers/mfd/axp20x.c
> +++ /dev/null
> @@ -1,258 +0,0 @@
> -/*
> - * axp20x.c - MFD core driver for the X-Powers AXP202 and AXP209
> - *
> - * AXP20x comprises an adaptive USB-Compatible PWM charger, 2 BUCK DC-DC
> - * converters, 5 LDOs, multiple 12-bit ADCs of voltage, current and 
> temperature
> - * as well as 4 configurable GPIOs.
> - *
> - * Author: Carlo Caione <ca...@caione.org>
> - *
> - * This program is free software; you can redistribute it and/or modify
> - * it under the terms of the GNU General Public License version 2 as
> - * published by the Free Software Foundation.
> - */
> -
> -#include <linux/err.h>
> -#include <linux/i2c.h>
> -#include <linux/interrupt.h>
> -#include <linux/kernel.h>
> -#include <linux/module.h>
> -#include <linux/pm_runtime.h>
> -#include <linux/regmap.h>
> -#include <linux/slab.h>
> -#include <linux/regulator/consumer.h>
> -#include <linux/mfd/axp20x.h>
> -#include <linux/mfd/core.h>
> -#include <linux/of_device.h>
> -#include <linux/of_irq.h>
> -
> -#define AXP20X_OFF   0x80
> -
> -static const struct regmap_range axp20x_writeable_ranges[] = {
> -     regmap_reg_range(AXP20X_DATACACHE(0), AXP20X_IRQ5_STATE),
> -     regmap_reg_range(AXP20X_DCDC_MODE, AXP20X_FG_RES),
> -};
> -
> -static const struct regmap_range axp20x_volatile_ranges[] = {
> -     regmap_reg_range(AXP20X_IRQ1_EN, AXP20X_IRQ5_STATE),
> -};
> -
> -static const struct regmap_access_table axp20x_writeable_table = {
> -     .yes_ranges     = axp20x_writeable_ranges,
> -     .n_yes_ranges   = ARRAY_SIZE(axp20x_writeable_ranges),
> -};
> -
> -static const struct regmap_access_table axp20x_volatile_table = {
> -     .yes_ranges     = axp20x_volatile_ranges,
> -     .n_yes_ranges   = ARRAY_SIZE(axp20x_volatile_ranges),
> -};
> -
> -static struct resource axp20x_pek_resources[] = {
> -     {
> -             .name   = "PEK_DBR",
> -             .start  = AXP20X_IRQ_PEK_RIS_EDGE,
> -             .end    = AXP20X_IRQ_PEK_RIS_EDGE,
> -             .flags  = IORESOURCE_IRQ,
> -     }, {
> -             .name   = "PEK_DBF",
> -             .start  = AXP20X_IRQ_PEK_FAL_EDGE,
> -             .end    = AXP20X_IRQ_PEK_FAL_EDGE,
> -             .flags  = IORESOURCE_IRQ,
> -     },
> -};
> -
> -static const struct regmap_config axp20x_regmap_config = {
> -     .reg_bits       = 8,
> -     .val_bits       = 8,
> -     .wr_table       = &axp20x_writeable_table,
> -     .volatile_table = &axp20x_volatile_table,
> -     .max_register   = AXP20X_FG_RES,
> -     .cache_type     = REGCACHE_RBTREE,
> -};
> -
> -#define AXP20X_IRQ(_irq, _off, _mask) \
> -     [AXP20X_IRQ_##_irq] = { .reg_offset = (_off), .mask = BIT(_mask) }
> -
> -static const struct regmap_irq axp20x_regmap_irqs[] = {
> -     AXP20X_IRQ(ACIN_OVER_V,         0, 7),
> -     AXP20X_IRQ(ACIN_PLUGIN,         0, 6),
> -     AXP20X_IRQ(ACIN_REMOVAL,        0, 5),
> -     AXP20X_IRQ(VBUS_OVER_V,         0, 4),
> -     AXP20X_IRQ(VBUS_PLUGIN,         0, 3),
> -     AXP20X_IRQ(VBUS_REMOVAL,        0, 2),
> -     AXP20X_IRQ(VBUS_V_LOW,          0, 1),
> -     AXP20X_IRQ(BATT_PLUGIN,         1, 7),
> -     AXP20X_IRQ(BATT_REMOVAL,        1, 6),
> -     AXP20X_IRQ(BATT_ENT_ACT_MODE,   1, 5),
> -     AXP20X_IRQ(BATT_EXIT_ACT_MODE,  1, 4),
> -     AXP20X_IRQ(CHARG,               1, 3),
> -     AXP20X_IRQ(CHARG_DONE,          1, 2),
> -     AXP20X_IRQ(BATT_TEMP_HIGH,      1, 1),
> -     AXP20X_IRQ(BATT_TEMP_LOW,       1, 0),
> -     AXP20X_IRQ(DIE_TEMP_HIGH,       2, 7),
> -     AXP20X_IRQ(CHARG_I_LOW,         2, 6),
> -     AXP20X_IRQ(DCDC1_V_LONG,        2, 5),
> -     AXP20X_IRQ(DCDC2_V_LONG,        2, 4),
> -     AXP20X_IRQ(DCDC3_V_LONG,        2, 3),
> -     AXP20X_IRQ(PEK_SHORT,           2, 1),
> -     AXP20X_IRQ(PEK_LONG,            2, 0),
> -     AXP20X_IRQ(N_OE_PWR_ON,         3, 7),
> -     AXP20X_IRQ(N_OE_PWR_OFF,        3, 6),
> -     AXP20X_IRQ(VBUS_VALID,          3, 5),
> -     AXP20X_IRQ(VBUS_NOT_VALID,      3, 4),
> -     AXP20X_IRQ(VBUS_SESS_VALID,     3, 3),
> -     AXP20X_IRQ(VBUS_SESS_END,       3, 2),
> -     AXP20X_IRQ(LOW_PWR_LVL1,        3, 1),
> -     AXP20X_IRQ(LOW_PWR_LVL2,        3, 0),
> -     AXP20X_IRQ(TIMER,               4, 7),
> -     AXP20X_IRQ(PEK_RIS_EDGE,        4, 6),
> -     AXP20X_IRQ(PEK_FAL_EDGE,        4, 5),
> -     AXP20X_IRQ(GPIO3_INPUT,         4, 3),
> -     AXP20X_IRQ(GPIO2_INPUT,         4, 2),
> -     AXP20X_IRQ(GPIO1_INPUT,         4, 1),
> -     AXP20X_IRQ(GPIO0_INPUT,         4, 0),
> -};
> -
> -static const struct of_device_id axp20x_of_match[] = {
> -     { .compatible = "x-powers,axp202", .data = (void *) AXP202_ID },
> -     { .compatible = "x-powers,axp209", .data = (void *) AXP209_ID },
> -     { },
> -};
> -MODULE_DEVICE_TABLE(of, axp20x_of_match);
> -
> -/*
> - * This is useless for OF-enabled devices, but it is needed by I2C subsystem
> - */
> -static const struct i2c_device_id axp20x_i2c_id[] = {
> -     { },
> -};
> -MODULE_DEVICE_TABLE(i2c, axp20x_i2c_id);
> -
> -static const struct regmap_irq_chip axp20x_regmap_irq_chip = {
> -     .name                   = "axp20x_irq_chip",
> -     .status_base            = AXP20X_IRQ1_STATE,
> -     .ack_base               = AXP20X_IRQ1_STATE,
> -     .mask_base              = AXP20X_IRQ1_EN,
> -     .num_regs               = 5,
> -     .irqs                   = axp20x_regmap_irqs,
> -     .num_irqs               = ARRAY_SIZE(axp20x_regmap_irqs),
> -     .mask_invert            = true,
> -     .init_ack_masked        = true,
> -};
> -
> -static const char * const axp20x_supplies[] = {
> -     "acin",
> -     "vin2",
> -     "vin3",
> -     "ldo24in",
> -     "ldo3in",
> -     "ldo5in",
> -};
> -
> -static struct mfd_cell axp20x_cells[] = {
> -     {
> -             .name                   = "axp20x-pek",
> -             .num_resources          = ARRAY_SIZE(axp20x_pek_resources),
> -             .resources              = axp20x_pek_resources,
> -     }, {
> -             .name                   = "axp20x-regulator",
> -             .parent_supplies        = axp20x_supplies,
> -             .num_parent_supplies    = ARRAY_SIZE(axp20x_supplies),
> -     },
> -};
> -
> -static struct axp20x_dev *axp20x_pm_power_off;
> -static void axp20x_power_off(void)
> -{
> -     regmap_write(axp20x_pm_power_off->regmap, AXP20X_OFF_CTRL,
> -                  AXP20X_OFF);
> -}
> -
> -static int axp20x_i2c_probe(struct i2c_client *i2c,
> -                      const struct i2c_device_id *id)
> -{
> -     struct axp20x_dev *axp20x;
> -     const struct of_device_id *of_id;
> -     int ret;
> -
> -     axp20x = devm_kzalloc(&i2c->dev, sizeof(*axp20x), GFP_KERNEL);
> -     if (!axp20x)
> -             return -ENOMEM;
> -
> -     of_id = of_match_device(axp20x_of_match, &i2c->dev);
> -     if (!of_id) {
> -             dev_err(&i2c->dev, "Unable to setup AXP20X data\n");
> -             return -ENODEV;
> -     }
> -     axp20x->variant = (long) of_id->data;
> -
> -     axp20x->i2c_client = i2c;
> -     axp20x->dev = &i2c->dev;
> -     dev_set_drvdata(axp20x->dev, axp20x);
> -
> -     axp20x->regmap = devm_regmap_init_i2c(i2c, &axp20x_regmap_config);
> -     if (IS_ERR(axp20x->regmap)) {
> -             ret = PTR_ERR(axp20x->regmap);
> -             dev_err(&i2c->dev, "regmap init failed: %d\n", ret);
> -             return ret;
> -     }
> -
> -     ret = regmap_add_irq_chip(axp20x->regmap, i2c->irq,
> -                               IRQF_ONESHOT | IRQF_SHARED, -1,
> -                               &axp20x_regmap_irq_chip,
> -                               &axp20x->regmap_irqc);
> -     if (ret) {
> -             dev_err(&i2c->dev, "failed to add irq chip: %d\n", ret);
> -             return ret;
> -     }
> -
> -     ret = mfd_add_devices(axp20x->dev, -1, axp20x_cells,
> -                           ARRAY_SIZE(axp20x_cells), NULL, 0, NULL);
> -
> -     if (ret) {
> -             dev_err(&i2c->dev, "failed to add MFD devices: %d\n", ret);
> -             regmap_del_irq_chip(i2c->irq, axp20x->regmap_irqc);
> -             return ret;
> -     }
> -
> -     if (!pm_power_off) {
> -             axp20x_pm_power_off = axp20x;
> -             pm_power_off = axp20x_power_off;
> -     }
> -
> -     dev_info(&i2c->dev, "AXP20X driver loaded\n");
> -
> -     return 0;
> -}
> -
> -static int axp20x_i2c_remove(struct i2c_client *i2c)
> -{
> -     struct axp20x_dev *axp20x = i2c_get_clientdata(i2c);
> -
> -     if (axp20x == axp20x_pm_power_off) {
> -             axp20x_pm_power_off = NULL;
> -             pm_power_off = NULL;
> -     }
> -
> -     mfd_remove_devices(axp20x->dev);
> -     regmap_del_irq_chip(axp20x->i2c_client->irq, axp20x->regmap_irqc);
> -
> -     return 0;
> -}
> -
> -static struct i2c_driver axp20x_i2c_driver = {
> -     .driver = {
> -             .name   = "axp20x",
> -             .owner  = THIS_MODULE,
> -             .of_match_table = of_match_ptr(axp20x_of_match),
> -     },
> -     .probe          = axp20x_i2c_probe,
> -     .remove         = axp20x_i2c_remove,
> -     .id_table       = axp20x_i2c_id,
> -};
> -
> -module_i2c_driver(axp20x_i2c_driver);
> -
> -MODULE_DESCRIPTION("PMIC MFD core driver for AXP20X");
> -MODULE_AUTHOR("Carlo Caione <ca...@caione.org>");
> -MODULE_LICENSE("GPL");
> diff --git a/drivers/mfd/axp2xx.c b/drivers/mfd/axp2xx.c
> new file mode 100644
> index 0000000..c534443
> --- /dev/null
> +++ b/drivers/mfd/axp2xx.c
> @@ -0,0 +1,258 @@
> +/*
> + * axp20x.c - MFD core driver for the X-Powers AXP202 and AXP209
> + *
> + * AXP20x comprises an adaptive USB-Compatible PWM charger, 2 BUCK DC-DC
> + * converters, 5 LDOs, multiple 12-bit ADCs of voltage, current and 
> temperature
> + * as well as 4 configurable GPIOs.
> + *
> + * Author: Carlo Caione <ca...@caione.org>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + */
> +
> +#include <linux/err.h>
> +#include <linux/i2c.h>
> +#include <linux/interrupt.h>
> +#include <linux/kernel.h>
> +#include <linux/module.h>
> +#include <linux/pm_runtime.h>
> +#include <linux/regmap.h>
> +#include <linux/slab.h>
> +#include <linux/regulator/consumer.h>
> +#include <linux/mfd/axp2xx.h>
> +#include <linux/mfd/core.h>
> +#include <linux/of_device.h>
> +#include <linux/of_irq.h>
> +
> +#define AXP20X_OFF   0x80
> +
> +static const struct regmap_range axp20x_writeable_ranges[] = {
> +     regmap_reg_range(AXP20X_DATACACHE(0), AXP20X_IRQ5_STATE),
> +     regmap_reg_range(AXP20X_DCDC_MODE, AXP20X_FG_RES),
> +};
> +
> +static const struct regmap_range axp20x_volatile_ranges[] = {
> +     regmap_reg_range(AXP20X_IRQ1_EN, AXP20X_IRQ5_STATE),
> +};
> +
> +static const struct regmap_access_table axp20x_writeable_table = {
> +     .yes_ranges     = axp20x_writeable_ranges,
> +     .n_yes_ranges   = ARRAY_SIZE(axp20x_writeable_ranges),
> +};
> +
> +static const struct regmap_access_table axp20x_volatile_table = {
> +     .yes_ranges     = axp20x_volatile_ranges,
> +     .n_yes_ranges   = ARRAY_SIZE(axp20x_volatile_ranges),
> +};
> +
> +static struct resource axp20x_pek_resources[] = {
> +     {
> +             .name   = "PEK_DBR",
> +             .start  = AXP20X_IRQ_PEK_RIS_EDGE,
> +             .end    = AXP20X_IRQ_PEK_RIS_EDGE,
> +             .flags  = IORESOURCE_IRQ,
> +     }, {
> +             .name   = "PEK_DBF",
> +             .start  = AXP20X_IRQ_PEK_FAL_EDGE,
> +             .end    = AXP20X_IRQ_PEK_FAL_EDGE,
> +             .flags  = IORESOURCE_IRQ,
> +     },
> +};
> +
> +static const struct regmap_config axp20x_regmap_config = {
> +     .reg_bits       = 8,
> +     .val_bits       = 8,
> +     .wr_table       = &axp20x_writeable_table,
> +     .volatile_table = &axp20x_volatile_table,
> +     .max_register   = AXP20X_FG_RES,
> +     .cache_type     = REGCACHE_RBTREE,
> +};
> +
> +#define AXP20X_IRQ(_irq, _off, _mask) \
> +     [AXP20X_IRQ_##_irq] = { .reg_offset = (_off), .mask = BIT(_mask) }
> +
> +static const struct regmap_irq axp20x_regmap_irqs[] = {
> +     AXP20X_IRQ(ACIN_OVER_V,         0, 7),
> +     AXP20X_IRQ(ACIN_PLUGIN,         0, 6),
> +     AXP20X_IRQ(ACIN_REMOVAL,        0, 5),
> +     AXP20X_IRQ(VBUS_OVER_V,         0, 4),
> +     AXP20X_IRQ(VBUS_PLUGIN,         0, 3),
> +     AXP20X_IRQ(VBUS_REMOVAL,        0, 2),
> +     AXP20X_IRQ(VBUS_V_LOW,          0, 1),
> +     AXP20X_IRQ(BATT_PLUGIN,         1, 7),
> +     AXP20X_IRQ(BATT_REMOVAL,        1, 6),
> +     AXP20X_IRQ(BATT_ENT_ACT_MODE,   1, 5),
> +     AXP20X_IRQ(BATT_EXIT_ACT_MODE,  1, 4),
> +     AXP20X_IRQ(CHARG,               1, 3),
> +     AXP20X_IRQ(CHARG_DONE,          1, 2),
> +     AXP20X_IRQ(BATT_TEMP_HIGH,      1, 1),
> +     AXP20X_IRQ(BATT_TEMP_LOW,       1, 0),
> +     AXP20X_IRQ(DIE_TEMP_HIGH,       2, 7),
> +     AXP20X_IRQ(CHARG_I_LOW,         2, 6),
> +     AXP20X_IRQ(DCDC1_V_LONG,        2, 5),
> +     AXP20X_IRQ(DCDC2_V_LONG,        2, 4),
> +     AXP20X_IRQ(DCDC3_V_LONG,        2, 3),
> +     AXP20X_IRQ(PEK_SHORT,           2, 1),
> +     AXP20X_IRQ(PEK_LONG,            2, 0),
> +     AXP20X_IRQ(N_OE_PWR_ON,         3, 7),
> +     AXP20X_IRQ(N_OE_PWR_OFF,        3, 6),
> +     AXP20X_IRQ(VBUS_VALID,          3, 5),
> +     AXP20X_IRQ(VBUS_NOT_VALID,      3, 4),
> +     AXP20X_IRQ(VBUS_SESS_VALID,     3, 3),
> +     AXP20X_IRQ(VBUS_SESS_END,       3, 2),
> +     AXP20X_IRQ(LOW_PWR_LVL1,        3, 1),
> +     AXP20X_IRQ(LOW_PWR_LVL2,        3, 0),
> +     AXP20X_IRQ(TIMER,               4, 7),
> +     AXP20X_IRQ(PEK_RIS_EDGE,        4, 6),
> +     AXP20X_IRQ(PEK_FAL_EDGE,        4, 5),
> +     AXP20X_IRQ(GPIO3_INPUT,         4, 3),
> +     AXP20X_IRQ(GPIO2_INPUT,         4, 2),
> +     AXP20X_IRQ(GPIO1_INPUT,         4, 1),
> +     AXP20X_IRQ(GPIO0_INPUT,         4, 0),
> +};
> +
> +static const struct of_device_id axp20x_of_match[] = {
> +     { .compatible = "x-powers,axp202", .data = (void *) AXP202_ID },
> +     { .compatible = "x-powers,axp209", .data = (void *) AXP209_ID },
> +     { },
> +};
> +MODULE_DEVICE_TABLE(of, axp20x_of_match);
> +
> +/*
> + * This is useless for OF-enabled devices, but it is needed by I2C subsystem
> + */
> +static const struct i2c_device_id axp20x_i2c_id[] = {
> +     { },
> +};
> +MODULE_DEVICE_TABLE(i2c, axp20x_i2c_id);
> +
> +static const struct regmap_irq_chip axp20x_regmap_irq_chip = {
> +     .name                   = "axp20x_irq_chip",
> +     .status_base            = AXP20X_IRQ1_STATE,
> +     .ack_base               = AXP20X_IRQ1_STATE,
> +     .mask_base              = AXP20X_IRQ1_EN,
> +     .num_regs               = 5,
> +     .irqs                   = axp20x_regmap_irqs,
> +     .num_irqs               = ARRAY_SIZE(axp20x_regmap_irqs),
> +     .mask_invert            = true,
> +     .init_ack_masked        = true,
> +};
> +
> +static const char * const axp20x_supplies[] = {
> +     "acin",
> +     "vin2",
> +     "vin3",
> +     "ldo24in",
> +     "ldo3in",
> +     "ldo5in",
> +};
> +
> +static struct mfd_cell axp20x_cells[] = {
> +     {
> +             .name                   = "axp20x-pek",
> +             .num_resources          = ARRAY_SIZE(axp20x_pek_resources),
> +             .resources              = axp20x_pek_resources,
> +     }, {
> +             .name                   = "axp20x-regulator",
> +             .parent_supplies        = axp20x_supplies,
> +             .num_parent_supplies    = ARRAY_SIZE(axp20x_supplies),
> +     },
> +};
> +
> +static struct axp20x_dev *axp20x_pm_power_off;
> +static void axp20x_power_off(void)
> +{
> +     regmap_write(axp20x_pm_power_off->regmap, AXP20X_OFF_CTRL,
> +                  AXP20X_OFF);
> +}
> +
> +static int axp20x_i2c_probe(struct i2c_client *i2c,
> +                      const struct i2c_device_id *id)
> +{
> +     struct axp20x_dev *axp20x;
> +     const struct of_device_id *of_id;
> +     int ret;
> +
> +     axp20x = devm_kzalloc(&i2c->dev, sizeof(*axp20x), GFP_KERNEL);
> +     if (!axp20x)
> +             return -ENOMEM;
> +
> +     of_id = of_match_device(axp20x_of_match, &i2c->dev);
> +     if (!of_id) {
> +             dev_err(&i2c->dev, "Unable to setup AXP20X data\n");
> +             return -ENODEV;
> +     }
> +     axp20x->variant = (long) of_id->data;
> +
> +     axp20x->i2c_client = i2c;
> +     axp20x->dev = &i2c->dev;
> +     dev_set_drvdata(axp20x->dev, axp20x);
> +
> +     axp20x->regmap = devm_regmap_init_i2c(i2c, &axp20x_regmap_config);
> +     if (IS_ERR(axp20x->regmap)) {
> +             ret = PTR_ERR(axp20x->regmap);
> +             dev_err(&i2c->dev, "regmap init failed: %d\n", ret);
> +             return ret;
> +     }
> +
> +     ret = regmap_add_irq_chip(axp20x->regmap, i2c->irq,
> +                               IRQF_ONESHOT | IRQF_SHARED, -1,
> +                               &axp20x_regmap_irq_chip,
> +                               &axp20x->regmap_irqc);
> +     if (ret) {
> +             dev_err(&i2c->dev, "failed to add irq chip: %d\n", ret);
> +             return ret;
> +     }
> +
> +     ret = mfd_add_devices(axp20x->dev, -1, axp20x_cells,
> +                           ARRAY_SIZE(axp20x_cells), NULL, 0, NULL);
> +
> +     if (ret) {
> +             dev_err(&i2c->dev, "failed to add MFD devices: %d\n", ret);
> +             regmap_del_irq_chip(i2c->irq, axp20x->regmap_irqc);
> +             return ret;
> +     }
> +
> +     if (!pm_power_off) {
> +             axp20x_pm_power_off = axp20x;
> +             pm_power_off = axp20x_power_off;
> +     }
> +
> +     dev_info(&i2c->dev, "AXP20X driver loaded\n");
> +
> +     return 0;
> +}
> +
> +static int axp20x_i2c_remove(struct i2c_client *i2c)
> +{
> +     struct axp20x_dev *axp20x = i2c_get_clientdata(i2c);
> +
> +     if (axp20x == axp20x_pm_power_off) {
> +             axp20x_pm_power_off = NULL;
> +             pm_power_off = NULL;
> +     }
> +
> +     mfd_remove_devices(axp20x->dev);
> +     regmap_del_irq_chip(axp20x->i2c_client->irq, axp20x->regmap_irqc);
> +
> +     return 0;
> +}
> +
> +static struct i2c_driver axp20x_i2c_driver = {
> +     .driver = {
> +             .name   = "axp20x",
> +             .owner  = THIS_MODULE,
> +             .of_match_table = of_match_ptr(axp20x_of_match),
> +     },
> +     .probe          = axp20x_i2c_probe,
> +     .remove         = axp20x_i2c_remove,
> +     .id_table       = axp20x_i2c_id,
> +};
> +
> +module_i2c_driver(axp20x_i2c_driver);
> +
> +MODULE_DESCRIPTION("PMIC MFD core driver for AXP20X");
> +MODULE_AUTHOR("Carlo Caione <ca...@caione.org>");
> +MODULE_LICENSE("GPL");
> diff --git a/include/linux/mfd/axp20x.h b/include/linux/mfd/axp20x.h
> deleted file mode 100644
> index d0e31a2..0000000
> --- a/include/linux/mfd/axp20x.h
> +++ /dev/null
> @@ -1,180 +0,0 @@
> -/*
> - * Functions and registers to access AXP20X power management chip.
> - *
> - * Copyright (C) 2013, Carlo Caione <ca...@caione.org>
> - *
> - * This program is free software; you can redistribute it and/or modify
> - * it under the terms of the GNU General Public License version 2 as
> - * published by the Free Software Foundation.
> - */
> -
> -#ifndef __LINUX_MFD_AXP20X_H
> -#define __LINUX_MFD_AXP20X_H
> -
> -enum {
> -     AXP202_ID = 0,
> -     AXP209_ID,
> -};
> -
> -#define AXP20X_DATACACHE(m)          (0x04 + (m))
> -
> -/* Power supply */
> -#define AXP20X_PWR_INPUT_STATUS              0x00
> -#define AXP20X_PWR_OP_MODE           0x01
> -#define AXP20X_USB_OTG_STATUS                0x02
> -#define AXP20X_PWR_OUT_CTRL          0x12
> -#define AXP20X_DCDC2_V_OUT           0x23
> -#define AXP20X_DCDC2_LDO3_V_SCAL     0x25
> -#define AXP20X_DCDC3_V_OUT           0x27
> -#define AXP20X_LDO24_V_OUT           0x28
> -#define AXP20X_LDO3_V_OUT            0x29
> -#define AXP20X_VBUS_IPSOUT_MGMT              0x30
> -#define AXP20X_V_OFF                 0x31
> -#define AXP20X_OFF_CTRL                      0x32
> -#define AXP20X_CHRG_CTRL1            0x33
> -#define AXP20X_CHRG_CTRL2            0x34
> -#define AXP20X_CHRG_BAK_CTRL         0x35
> -#define AXP20X_PEK_KEY                       0x36
> -#define AXP20X_DCDC_FREQ             0x37
> -#define AXP20X_V_LTF_CHRG            0x38
> -#define AXP20X_V_HTF_CHRG            0x39
> -#define AXP20X_APS_WARN_L1           0x3a
> -#define AXP20X_APS_WARN_L2           0x3b
> -#define AXP20X_V_LTF_DISCHRG         0x3c
> -#define AXP20X_V_HTF_DISCHRG         0x3d
> -
> -/* Interrupt */
> -#define AXP20X_IRQ1_EN                       0x40
> -#define AXP20X_IRQ2_EN                       0x41
> -#define AXP20X_IRQ3_EN                       0x42
> -#define AXP20X_IRQ4_EN                       0x43
> -#define AXP20X_IRQ5_EN                       0x44
> -#define AXP20X_IRQ1_STATE            0x48
> -#define AXP20X_IRQ2_STATE            0x49
> -#define AXP20X_IRQ3_STATE            0x4a
> -#define AXP20X_IRQ4_STATE            0x4b
> -#define AXP20X_IRQ5_STATE            0x4c
> -
> -/* ADC */
> -#define AXP20X_ACIN_V_ADC_H          0x56
> -#define AXP20X_ACIN_V_ADC_L          0x57
> -#define AXP20X_ACIN_I_ADC_H          0x58
> -#define AXP20X_ACIN_I_ADC_L          0x59
> -#define AXP20X_VBUS_V_ADC_H          0x5a
> -#define AXP20X_VBUS_V_ADC_L          0x5b
> -#define AXP20X_VBUS_I_ADC_H          0x5c
> -#define AXP20X_VBUS_I_ADC_L          0x5d
> -#define AXP20X_TEMP_ADC_H            0x5e
> -#define AXP20X_TEMP_ADC_L            0x5f
> -#define AXP20X_TS_IN_H                       0x62
> -#define AXP20X_TS_IN_L                       0x63
> -#define AXP20X_GPIO0_V_ADC_H         0x64
> -#define AXP20X_GPIO0_V_ADC_L         0x65
> -#define AXP20X_GPIO1_V_ADC_H         0x66
> -#define AXP20X_GPIO1_V_ADC_L         0x67
> -#define AXP20X_PWR_BATT_H            0x70
> -#define AXP20X_PWR_BATT_M            0x71
> -#define AXP20X_PWR_BATT_L            0x72
> -#define AXP20X_BATT_V_H                      0x78
> -#define AXP20X_BATT_V_L                      0x79
> -#define AXP20X_BATT_CHRG_I_H         0x7a
> -#define AXP20X_BATT_CHRG_I_L         0x7b
> -#define AXP20X_BATT_DISCHRG_I_H              0x7c
> -#define AXP20X_BATT_DISCHRG_I_L              0x7d
> -#define AXP20X_IPSOUT_V_HIGH_H               0x7e
> -#define AXP20X_IPSOUT_V_HIGH_L               0x7f
> -
> -/* Power supply */
> -#define AXP20X_DCDC_MODE             0x80
> -#define AXP20X_ADC_EN1                       0x82
> -#define AXP20X_ADC_EN2                       0x83
> -#define AXP20X_ADC_RATE                      0x84
> -#define AXP20X_GPIO10_IN_RANGE               0x85
> -#define AXP20X_GPIO1_ADC_IRQ_RIS     0x86
> -#define AXP20X_GPIO1_ADC_IRQ_FAL     0x87
> -#define AXP20X_TIMER_CTRL            0x8a
> -#define AXP20X_VBUS_MON                      0x8b
> -#define AXP20X_OVER_TMP                      0x8f
> -
> -/* GPIO */
> -#define AXP20X_GPIO0_CTRL            0x90
> -#define AXP20X_LDO5_V_OUT            0x91
> -#define AXP20X_GPIO1_CTRL            0x92
> -#define AXP20X_GPIO2_CTRL            0x93
> -#define AXP20X_GPIO20_SS             0x94
> -#define AXP20X_GPIO3_CTRL            0x95
> -
> -/* Battery */
> -#define AXP20X_CHRG_CC_31_24         0xb0
> -#define AXP20X_CHRG_CC_23_16         0xb1
> -#define AXP20X_CHRG_CC_15_8          0xb2
> -#define AXP20X_CHRG_CC_7_0           0xb3
> -#define AXP20X_DISCHRG_CC_31_24              0xb4
> -#define AXP20X_DISCHRG_CC_23_16              0xb5
> -#define AXP20X_DISCHRG_CC_15_8               0xb6
> -#define AXP20X_DISCHRG_CC_7_0                0xb7
> -#define AXP20X_CC_CTRL                       0xb8
> -#define AXP20X_FG_RES                        0xb9
> -
> -/* Regulators IDs */
> -enum {
> -     AXP20X_LDO1 = 0,
> -     AXP20X_LDO2,
> -     AXP20X_LDO3,
> -     AXP20X_LDO4,
> -     AXP20X_LDO5,
> -     AXP20X_DCDC2,
> -     AXP20X_DCDC3,
> -     AXP20X_REG_ID_MAX,
> -};
> -
> -/* IRQs */
> -enum {
> -     AXP20X_IRQ_ACIN_OVER_V = 1,
> -     AXP20X_IRQ_ACIN_PLUGIN,
> -     AXP20X_IRQ_ACIN_REMOVAL,
> -     AXP20X_IRQ_VBUS_OVER_V,
> -     AXP20X_IRQ_VBUS_PLUGIN,
> -     AXP20X_IRQ_VBUS_REMOVAL,
> -     AXP20X_IRQ_VBUS_V_LOW,
> -     AXP20X_IRQ_BATT_PLUGIN,
> -     AXP20X_IRQ_BATT_REMOVAL,
> -     AXP20X_IRQ_BATT_ENT_ACT_MODE,
> -     AXP20X_IRQ_BATT_EXIT_ACT_MODE,
> -     AXP20X_IRQ_CHARG,
> -     AXP20X_IRQ_CHARG_DONE,
> -     AXP20X_IRQ_BATT_TEMP_HIGH,
> -     AXP20X_IRQ_BATT_TEMP_LOW,
> -     AXP20X_IRQ_DIE_TEMP_HIGH,
> -     AXP20X_IRQ_CHARG_I_LOW,
> -     AXP20X_IRQ_DCDC1_V_LONG,
> -     AXP20X_IRQ_DCDC2_V_LONG,
> -     AXP20X_IRQ_DCDC3_V_LONG,
> -     AXP20X_IRQ_PEK_SHORT = 22,
> -     AXP20X_IRQ_PEK_LONG,
> -     AXP20X_IRQ_N_OE_PWR_ON,
> -     AXP20X_IRQ_N_OE_PWR_OFF,
> -     AXP20X_IRQ_VBUS_VALID,
> -     AXP20X_IRQ_VBUS_NOT_VALID,
> -     AXP20X_IRQ_VBUS_SESS_VALID,
> -     AXP20X_IRQ_VBUS_SESS_END,
> -     AXP20X_IRQ_LOW_PWR_LVL1,
> -     AXP20X_IRQ_LOW_PWR_LVL2,
> -     AXP20X_IRQ_TIMER,
> -     AXP20X_IRQ_PEK_RIS_EDGE,
> -     AXP20X_IRQ_PEK_FAL_EDGE,
> -     AXP20X_IRQ_GPIO3_INPUT,
> -     AXP20X_IRQ_GPIO2_INPUT,
> -     AXP20X_IRQ_GPIO1_INPUT,
> -     AXP20X_IRQ_GPIO0_INPUT,
> -};
> -
> -struct axp20x_dev {
> -     struct device                   *dev;
> -     struct i2c_client               *i2c_client;
> -     struct regmap                   *regmap;
> -     struct regmap_irq_chip_data     *regmap_irqc;
> -     long                            variant;
> -};
> -
> -#endif /* __LINUX_MFD_AXP20X_H */
> diff --git a/include/linux/mfd/axp2xx.h b/include/linux/mfd/axp2xx.h
> new file mode 100644
> index 0000000..d0e31a2
> --- /dev/null
> +++ b/include/linux/mfd/axp2xx.h
> @@ -0,0 +1,180 @@
> +/*
> + * Functions and registers to access AXP20X power management chip.
> + *
> + * Copyright (C) 2013, Carlo Caione <ca...@caione.org>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + */
> +
> +#ifndef __LINUX_MFD_AXP20X_H
> +#define __LINUX_MFD_AXP20X_H
> +
> +enum {
> +     AXP202_ID = 0,
> +     AXP209_ID,
> +};
> +
> +#define AXP20X_DATACACHE(m)          (0x04 + (m))
> +
> +/* Power supply */
> +#define AXP20X_PWR_INPUT_STATUS              0x00
> +#define AXP20X_PWR_OP_MODE           0x01
> +#define AXP20X_USB_OTG_STATUS                0x02
> +#define AXP20X_PWR_OUT_CTRL          0x12
> +#define AXP20X_DCDC2_V_OUT           0x23
> +#define AXP20X_DCDC2_LDO3_V_SCAL     0x25
> +#define AXP20X_DCDC3_V_OUT           0x27
> +#define AXP20X_LDO24_V_OUT           0x28
> +#define AXP20X_LDO3_V_OUT            0x29
> +#define AXP20X_VBUS_IPSOUT_MGMT              0x30
> +#define AXP20X_V_OFF                 0x31
> +#define AXP20X_OFF_CTRL                      0x32
> +#define AXP20X_CHRG_CTRL1            0x33
> +#define AXP20X_CHRG_CTRL2            0x34
> +#define AXP20X_CHRG_BAK_CTRL         0x35
> +#define AXP20X_PEK_KEY                       0x36
> +#define AXP20X_DCDC_FREQ             0x37
> +#define AXP20X_V_LTF_CHRG            0x38
> +#define AXP20X_V_HTF_CHRG            0x39
> +#define AXP20X_APS_WARN_L1           0x3a
> +#define AXP20X_APS_WARN_L2           0x3b
> +#define AXP20X_V_LTF_DISCHRG         0x3c
> +#define AXP20X_V_HTF_DISCHRG         0x3d
> +
> +/* Interrupt */
> +#define AXP20X_IRQ1_EN                       0x40
> +#define AXP20X_IRQ2_EN                       0x41
> +#define AXP20X_IRQ3_EN                       0x42
> +#define AXP20X_IRQ4_EN                       0x43
> +#define AXP20X_IRQ5_EN                       0x44
> +#define AXP20X_IRQ1_STATE            0x48
> +#define AXP20X_IRQ2_STATE            0x49
> +#define AXP20X_IRQ3_STATE            0x4a
> +#define AXP20X_IRQ4_STATE            0x4b
> +#define AXP20X_IRQ5_STATE            0x4c
> +
> +/* ADC */
> +#define AXP20X_ACIN_V_ADC_H          0x56
> +#define AXP20X_ACIN_V_ADC_L          0x57
> +#define AXP20X_ACIN_I_ADC_H          0x58
> +#define AXP20X_ACIN_I_ADC_L          0x59
> +#define AXP20X_VBUS_V_ADC_H          0x5a
> +#define AXP20X_VBUS_V_ADC_L          0x5b
> +#define AXP20X_VBUS_I_ADC_H          0x5c
> +#define AXP20X_VBUS_I_ADC_L          0x5d
> +#define AXP20X_TEMP_ADC_H            0x5e
> +#define AXP20X_TEMP_ADC_L            0x5f
> +#define AXP20X_TS_IN_H                       0x62
> +#define AXP20X_TS_IN_L                       0x63
> +#define AXP20X_GPIO0_V_ADC_H         0x64
> +#define AXP20X_GPIO0_V_ADC_L         0x65
> +#define AXP20X_GPIO1_V_ADC_H         0x66
> +#define AXP20X_GPIO1_V_ADC_L         0x67
> +#define AXP20X_PWR_BATT_H            0x70
> +#define AXP20X_PWR_BATT_M            0x71
> +#define AXP20X_PWR_BATT_L            0x72
> +#define AXP20X_BATT_V_H                      0x78
> +#define AXP20X_BATT_V_L                      0x79
> +#define AXP20X_BATT_CHRG_I_H         0x7a
> +#define AXP20X_BATT_CHRG_I_L         0x7b
> +#define AXP20X_BATT_DISCHRG_I_H              0x7c
> +#define AXP20X_BATT_DISCHRG_I_L              0x7d
> +#define AXP20X_IPSOUT_V_HIGH_H               0x7e
> +#define AXP20X_IPSOUT_V_HIGH_L               0x7f
> +
> +/* Power supply */
> +#define AXP20X_DCDC_MODE             0x80
> +#define AXP20X_ADC_EN1                       0x82
> +#define AXP20X_ADC_EN2                       0x83
> +#define AXP20X_ADC_RATE                      0x84
> +#define AXP20X_GPIO10_IN_RANGE               0x85
> +#define AXP20X_GPIO1_ADC_IRQ_RIS     0x86
> +#define AXP20X_GPIO1_ADC_IRQ_FAL     0x87
> +#define AXP20X_TIMER_CTRL            0x8a
> +#define AXP20X_VBUS_MON                      0x8b
> +#define AXP20X_OVER_TMP                      0x8f
> +
> +/* GPIO */
> +#define AXP20X_GPIO0_CTRL            0x90
> +#define AXP20X_LDO5_V_OUT            0x91
> +#define AXP20X_GPIO1_CTRL            0x92
> +#define AXP20X_GPIO2_CTRL            0x93
> +#define AXP20X_GPIO20_SS             0x94
> +#define AXP20X_GPIO3_CTRL            0x95
> +
> +/* Battery */
> +#define AXP20X_CHRG_CC_31_24         0xb0
> +#define AXP20X_CHRG_CC_23_16         0xb1
> +#define AXP20X_CHRG_CC_15_8          0xb2
> +#define AXP20X_CHRG_CC_7_0           0xb3
> +#define AXP20X_DISCHRG_CC_31_24              0xb4
> +#define AXP20X_DISCHRG_CC_23_16              0xb5
> +#define AXP20X_DISCHRG_CC_15_8               0xb6
> +#define AXP20X_DISCHRG_CC_7_0                0xb7
> +#define AXP20X_CC_CTRL                       0xb8
> +#define AXP20X_FG_RES                        0xb9
> +
> +/* Regulators IDs */
> +enum {
> +     AXP20X_LDO1 = 0,
> +     AXP20X_LDO2,
> +     AXP20X_LDO3,
> +     AXP20X_LDO4,
> +     AXP20X_LDO5,
> +     AXP20X_DCDC2,
> +     AXP20X_DCDC3,
> +     AXP20X_REG_ID_MAX,
> +};
> +
> +/* IRQs */
> +enum {
> +     AXP20X_IRQ_ACIN_OVER_V = 1,
> +     AXP20X_IRQ_ACIN_PLUGIN,
> +     AXP20X_IRQ_ACIN_REMOVAL,
> +     AXP20X_IRQ_VBUS_OVER_V,
> +     AXP20X_IRQ_VBUS_PLUGIN,
> +     AXP20X_IRQ_VBUS_REMOVAL,
> +     AXP20X_IRQ_VBUS_V_LOW,
> +     AXP20X_IRQ_BATT_PLUGIN,
> +     AXP20X_IRQ_BATT_REMOVAL,
> +     AXP20X_IRQ_BATT_ENT_ACT_MODE,
> +     AXP20X_IRQ_BATT_EXIT_ACT_MODE,
> +     AXP20X_IRQ_CHARG,
> +     AXP20X_IRQ_CHARG_DONE,
> +     AXP20X_IRQ_BATT_TEMP_HIGH,
> +     AXP20X_IRQ_BATT_TEMP_LOW,
> +     AXP20X_IRQ_DIE_TEMP_HIGH,
> +     AXP20X_IRQ_CHARG_I_LOW,
> +     AXP20X_IRQ_DCDC1_V_LONG,
> +     AXP20X_IRQ_DCDC2_V_LONG,
> +     AXP20X_IRQ_DCDC3_V_LONG,
> +     AXP20X_IRQ_PEK_SHORT = 22,
> +     AXP20X_IRQ_PEK_LONG,
> +     AXP20X_IRQ_N_OE_PWR_ON,
> +     AXP20X_IRQ_N_OE_PWR_OFF,
> +     AXP20X_IRQ_VBUS_VALID,
> +     AXP20X_IRQ_VBUS_NOT_VALID,
> +     AXP20X_IRQ_VBUS_SESS_VALID,
> +     AXP20X_IRQ_VBUS_SESS_END,
> +     AXP20X_IRQ_LOW_PWR_LVL1,
> +     AXP20X_IRQ_LOW_PWR_LVL2,
> +     AXP20X_IRQ_TIMER,
> +     AXP20X_IRQ_PEK_RIS_EDGE,
> +     AXP20X_IRQ_PEK_FAL_EDGE,
> +     AXP20X_IRQ_GPIO3_INPUT,
> +     AXP20X_IRQ_GPIO2_INPUT,
> +     AXP20X_IRQ_GPIO1_INPUT,
> +     AXP20X_IRQ_GPIO0_INPUT,
> +};
> +
> +struct axp20x_dev {
> +     struct device                   *dev;
> +     struct i2c_client               *i2c_client;
> +     struct regmap                   *regmap;
> +     struct regmap_irq_chip_data     *regmap_irqc;
> +     long                            variant;
> +};
> +
> +#endif /* __LINUX_MFD_AXP20X_H */

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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