Merge tag 'mfd-for-linus-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "New Drivers:
   - Add new driver for MAXIM MAX77620/MAX20024 PMIC
   - Add new driver for Hisilicon HI665X PMIC

  New Device Support:
   - Add support for AXP809 in axp20x-rsb
   - Add support for Power Supply in axp20x

  New core features:
   - devm_mfd_* managed resources

  Fix-ups:
   - Remove unused code (da9063-irq, wm8400-core, tps6105x,
     smsc-ece1099, twl4030-power)
   - Improve clean-up in error path (intel_quark_i2c_gpio)
   - Explicitly include headers (syscon.h)
   - Allow building as modules (max77693)
   - Use IS_ENABLED() instead of rolling your own (dm355evm_msp,
     wm8400-core)
   - DT adaptions (axp20x, hi655x, arizona, max77620)
   - Remove CLK_IS_ROOT flag (intel-lpss, intel_quark)
   - Move to gpiochip API (asic3, dm355evm_msp, htc-egpio, htc-i2cpld,
     sm501, tc6393xb, tps65010, ucb1x00, vexpress)
   - Make use of devm_mfd_* calls (act8945a, as3711, atmel-hlcdc,
     bcm590xx, hi6421-pmic-core, lp3943, menf21bmc, mt6397, rdc321x,
     rk808, rn5t618, rt5033, sky81452, stw481x, tps6507x, tps65217,
     wm8400)

  Bug Fixes"
   - Fix ACPI child matching (mfd-core)
   - Fix start-up ordering issues (mt6397-core, arizona-core)
   - Fix forgotten register state on resume (intel-lpss)
   - Fix Clock related issues (twl6040)
   - Fix scheduling whilst atomic (omap-usb-tll)
   - Kconfig changes (vexpress)"

* tag 'mfd-for-linus-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (73 commits)
  mfd: hi655x: Add MFD driver for hi655x
  mfd: ab8500-debugfs: Trivial fix of spelling mistake on "between"
  mfd: vexpress: Add !ARCH_USES_GETTIMEOFFSET dependency
  mfd: Add device-tree binding doc for PMIC MAX77620/MAX20024
  mfd: max77620: Add core driver for MAX77620/MAX20024
  mfd: arizona: Add defines for GPSW values that can be used from DT
  mfd: omap-usb-tll: Fix scheduling while atomic BUG
  mfd: wm5110: ARIZONA_CLOCK_CONTROL should be volatile
  mfd: axp20x: Add a cell for the ac power_supply part of the axp20x PMICs
  mfd: intel_soc_pmic_core: Terminate panel control GPIO lookup table correctly
  mfd: wl1273-core: Use devm_mfd_add_devices() for mfd_device registration
  mfd: tps65910: Use devm_mfd_add_devices and devm_regmap_add_irq_chip
  mfd: sec: Use devm_mfd_add_devices and devm_regmap_add_irq_chip
  mfd: rc5t583: Use devm_mfd_add_devices and devm_request_threaded_irq
  mfd: max77686: Use devm_mfd_add_devices and devm_regmap_add_irq_chip
  mfd: as3722: Use devm_mfd_add_devices and devm_regmap_add_irq_chip
  mfd: twl4030-power: Remove driver path in file comment
  MAINTAINERS: Add entry for X-Powers AXP family PMIC drivers
  mfd: smsc-ece1099: Remove unnecessarily remove callback
  mfd: Use IS_ENABLED(CONFIG_FOO) instead of checking FOO || FOO_MODULE
  ...

55 files changed, 1139 insertions, 482 deletions

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index eea61e3..1bcf601 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -134,7 +134,7 @@ config MFD_CROS_EC
 	select MFD_CORE
 	select CHROME_PLATFORMS
 	select CROS_EC_PROTO
-	depends on X86 || ARM || COMPILE_TEST
+	depends on X86 || ARM || ARM64 || COMPILE_TEST
 	help
 	  If you say Y here you get support for the ChromeOS Embedded
 	  Controller (EC) providing keyboard, battery and power services.
@@ -319,6 +319,16 @@ config MFD_HI6421_PMIC
 	  menus in order to enable them.
 	  We communicate with the Hi6421 via memory-mapped I/O.
 
+config MFD_HI655X_PMIC
+	tristate "HiSilicon Hi655X series PMU/Codec IC"
+	depends on ARCH_HISI || COMPILE_TEST
+	depends on OF
+	select MFD_CORE
+	select REGMAP_MMIO
+	select REGMAP_IRQ
+	help
+	  Select this option to enable Hisilicon hi655x series pmic driver.
+
 config HTC_EGPIO
 	bool "HTC EGPIO support"
 	depends on GPIOLIB && ARM
@@ -527,6 +537,21 @@ config MFD_MAX14577
 	  additional drivers must be enabled in order to use the functionality
 	  of the device.
 
+config MFD_MAX77620
+	bool "Maxim Semiconductor MAX77620 and MAX20024 PMIC Support"
+	depends on I2C=y
+	depends on OF
+	select MFD_CORE
+	select REGMAP_I2C
+	select REGMAP_IRQ
+	select IRQ_DOMAIN
+	help
+	  Say yes here to add support for Maxim Semiconductor MAX77620 and
+	  MAX20024 which are Power Management IC with General purpose pins,
+	  RTC, regulators, clock generator, watchdog etc. 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_MAX77686
 	tristate "Maxim Semiconductor MAX77686/802 PMIC Support"
 	depends on I2C
@@ -543,8 +568,8 @@ config MFD_MAX77686
 	  of the device.
 
 config MFD_MAX77693
-	bool "Maxim Semiconductor MAX77693 PMIC Support"
-	depends on I2C=y
+	tristate "Maxim Semiconductor MAX77693 PMIC Support"
+	depends on I2C
 	select MFD_CORE
 	select REGMAP_I2C
 	select REGMAP_IRQ
@@ -1568,7 +1593,7 @@ endmenu
 
 config MFD_VEXPRESS_SYSREG
 	bool "Versatile Express System Registers"
-	depends on VEXPRESS_CONFIG && GPIOLIB
+	depends on VEXPRESS_CONFIG && GPIOLIB && !ARCH_USES_GETTIMEOFFSET
 	default y
 	select CLKSRC_MMIO
 	select GPIO_GENERIC_PLATFORM
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 5eaa6465d..42a66e1 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -128,6 +128,7 @@ obj-$(CONFIG_MFD_DA9063)	+= da9063.o
 obj-$(CONFIG_MFD_DA9150)	+= da9150-core.o
 
 obj-$(CONFIG_MFD_MAX14577)	+= max14577.o
+obj-$(CONFIG_MFD_MAX77620)	+= max77620.o
 obj-$(CONFIG_MFD_MAX77686)	+= max77686.o
 obj-$(CONFIG_MFD_MAX77693)	+= max77693.o
 obj-$(CONFIG_MFD_MAX77843)	+= max77843.o
@@ -195,6 +196,7 @@ obj-$(CONFIG_MFD_STW481X)	+= stw481x.o
 obj-$(CONFIG_MFD_IPAQ_MICRO)	+= ipaq-micro.o
 obj-$(CONFIG_MFD_MENF21BMC)	+= menf21bmc.o
 obj-$(CONFIG_MFD_HI6421_PMIC)	+= hi6421-pmic-core.o
+obj-$(CONFIG_MFD_HI655X_PMIC)   += hi655x-pmic.o
 obj-$(CONFIG_MFD_DLN2)		+= dln2.o
 obj-$(CONFIG_MFD_RT5033)	+= rt5033.o
 obj-$(CONFIG_MFD_SKY81452)	+= sky81452.o
diff --git a/drivers/mfd/act8945a.c b/drivers/mfd/act8945a.c
index 525b546..10c6d2d 100644
--- a/drivers/mfd/act8945a.c
+++ b/drivers/mfd/act8945a.c
@@ -46,8 +46,9 @@ static int act8945a_i2c_probe(struct i2c_client *i2c,
 
 	i2c_set_clientdata(i2c, regmap);
 
-	ret = mfd_add_devices(&i2c->dev, PLATFORM_DEVID_NONE, act8945a_devs,
-			      ARRAY_SIZE(act8945a_devs), NULL, 0, NULL);
+	ret = devm_mfd_add_devices(&i2c->dev, PLATFORM_DEVID_NONE,
+				   act8945a_devs, ARRAY_SIZE(act8945a_devs),
+				   NULL, 0, NULL);
 	if (ret) {
 		dev_err(&i2c->dev, "Failed to add sub devices\n");
 		return ret;
@@ -56,13 +57,6 @@ static int act8945a_i2c_probe(struct i2c_client *i2c,
 	return 0;
 }
 
-static int act8945a_i2c_remove(struct i2c_client *i2c)
-{
-	mfd_remove_devices(&i2c->dev);
-
-	return 0;
-}
-
 static const struct i2c_device_id act8945a_i2c_id[] = {
 	{ "act8945a", 0 },
 	{}
@@ -81,7 +75,6 @@ static struct i2c_driver act8945a_i2c_driver = {
 		   .of_match_table = of_match_ptr(act8945a_of_match),
 	},
 	.probe = act8945a_i2c_probe,
-	.remove = act8945a_i2c_remove,
 	.id_table = act8945a_i2c_id,
 };
 
diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index 5319f25..bf27179 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -908,12 +908,12 @@ static const char * const wm5102_supplies[] = {
 
 static const struct mfd_cell wm5102_devs[] = {
 	{ .name = "arizona-micsupp" },
+	{ .name = "arizona-gpio" },
 	{
 		.name = "arizona-extcon",
 		.parent_supplies = wm5102_supplies,
 		.num_parent_supplies = 1, /* We only need MICVDD */
 	},
-	{ .name = "arizona-gpio" },
 	{ .name = "arizona-haptics" },
 	{ .name = "arizona-pwm" },
 	{
@@ -925,12 +925,12 @@ static const struct mfd_cell wm5102_devs[] = {
 
 static const struct mfd_cell wm5110_devs[] = {
 	{ .name = "arizona-micsupp" },
+	{ .name = "arizona-gpio" },
 	{
 		.name = "arizona-extcon",
 		.parent_supplies = wm5102_supplies,
 		.num_parent_supplies = 1, /* We only need MICVDD */
 	},
-	{ .name = "arizona-gpio" },
 	{ .name = "arizona-haptics" },
 	{ .name = "arizona-pwm" },
 	{
@@ -966,12 +966,12 @@ static const char * const wm8997_supplies[] = {
 
 static const struct mfd_cell wm8997_devs[] = {
 	{ .name = "arizona-micsupp" },
+	{ .name = "arizona-gpio" },
 	{
 		.name = "arizona-extcon",
 		.parent_supplies = wm8997_supplies,
 		.num_parent_supplies = 1, /* We only need MICVDD */
 	},
-	{ .name = "arizona-gpio" },
 	{ .name = "arizona-haptics" },
 	{ .name = "arizona-pwm" },
 	{
@@ -982,12 +982,13 @@ static const struct mfd_cell wm8997_devs[] = {
 };
 
 static const struct mfd_cell wm8998_devs[] = {
+	{ .name = "arizona-micsupp" },
+	{ .name = "arizona-gpio" },
 	{
 		.name = "arizona-extcon",
 		.parent_supplies = wm5102_supplies,
 		.num_parent_supplies = 1, /* We only need MICVDD */
 	},
-	{ .name = "arizona-gpio" },
 	{ .name = "arizona-haptics" },
 	{ .name = "arizona-pwm" },
 	{
@@ -995,7 +996,6 @@ static const struct mfd_cell wm8998_devs[] = {
 		.parent_supplies = wm5102_supplies,
 		.num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
 	},
-	{ .name = "arizona-micsupp" },
 };
 
 int arizona_dev_init(struct arizona *arizona)
diff --git a/drivers/mfd/arizona-irq.c b/drivers/mfd/arizona-irq.c
index 5fef014..edeb495 100644
--- a/drivers/mfd/arizona-irq.c
+++ b/drivers/mfd/arizona-irq.c
@@ -168,12 +168,15 @@ static struct irq_chip arizona_irq_chip = {
 	.irq_set_wake		= arizona_irq_set_wake,
 };
 
+static struct lock_class_key arizona_irq_lock_class;
+
 static int arizona_irq_map(struct irq_domain *h, unsigned int virq,
 			      irq_hw_number_t hw)
 {
 	struct arizona *data = h->host_data;
 
 	irq_set_chip_data(virq, data);
+	irq_set_lockdep_class(virq, &arizona_irq_lock_class);
 	irq_set_chip_and_handler(virq, &arizona_irq_chip, handle_simple_irq);
 	irq_set_nested_thread(virq, 1);
 	irq_set_noprobe(virq);
diff --git a/drivers/mfd/as3711.c b/drivers/mfd/as3711.c
index 09e1483..67b1241 100644
--- a/drivers/mfd/as3711.c
+++ b/drivers/mfd/as3711.c
@@ -189,22 +189,14 @@ static int as3711_i2c_probe(struct i2c_client *client,
 		as3711_subdevs[AS3711_BACKLIGHT].pdata_size = 0;
 	}
 
-	ret = mfd_add_devices(as3711->dev, -1, as3711_subdevs,
-			      ARRAY_SIZE(as3711_subdevs), NULL, 0, NULL);
+	ret = devm_mfd_add_devices(as3711->dev, -1, as3711_subdevs,
+				   ARRAY_SIZE(as3711_subdevs), NULL, 0, NULL);
 	if (ret < 0)
 		dev_err(&client->dev, "add mfd devices failed: %d\n", ret);
 
 	return ret;
 }
 
-static int as3711_i2c_remove(struct i2c_client *client)
-{
-	struct as3711 *as3711 = i2c_get_clientdata(client);
-
-	mfd_remove_devices(as3711->dev);
-	return 0;
-}
-
 static const struct i2c_device_id as3711_i2c_id[] = {
 	{.name = "as3711", .driver_data = 0},
 	{}
@@ -218,7 +210,6 @@ static struct i2c_driver as3711_i2c_driver = {
 		   .of_match_table = of_match_ptr(as3711_of_match),
 	},
 	.probe = as3711_i2c_probe,
-	.remove = as3711_i2c_remove,
 	.id_table = as3711_i2c_id,
 };
 
diff --git a/drivers/mfd/as3722.c b/drivers/mfd/as3722.c
index e1f597f..f87342c 100644
--- a/drivers/mfd/as3722.c
+++ b/drivers/mfd/as3722.c
@@ -385,9 +385,10 @@ static int as3722_i2c_probe(struct i2c_client *i2c,
 		return ret;
 
 	irq_flags = as3722->irq_flags | IRQF_ONESHOT;
-	ret = regmap_add_irq_chip(as3722->regmap, as3722->chip_irq,
-			irq_flags, -1, &as3722_irq_chip,
-			&as3722->irq_data);
+	ret = devm_regmap_add_irq_chip(as3722->dev, as3722->regmap,
+				       as3722->chip_irq,
+				       irq_flags, -1, &as3722_irq_chip,
+				       &as3722->irq_data);
 	if (ret < 0) {
 		dev_err(as3722->dev, "Failed to add regmap irq: %d\n", ret);
 		return ret;
@@ -395,33 +396,20 @@ static int as3722_i2c_probe(struct i2c_client *i2c,
 
 	ret = as3722_configure_pullups(as3722);
 	if (ret < 0)
-		goto scrub;
+		return ret;
 
-	ret = mfd_add_devices(&i2c->dev, -1, as3722_devs,
-			ARRAY_SIZE(as3722_devs), NULL, 0,
-			regmap_irq_get_domain(as3722->irq_data));
+	ret = devm_mfd_add_devices(&i2c->dev, -1, as3722_devs,
+				   ARRAY_SIZE(as3722_devs), NULL, 0,
+				   regmap_irq_get_domain(as3722->irq_data));
 	if (ret) {
 		dev_err(as3722->dev, "Failed to add MFD devices: %d\n", ret);
-		goto scrub;
+		return ret;
 	}
 
 	device_init_wakeup(as3722->dev, true);
 
 	dev_dbg(as3722->dev, "AS3722 core driver initialized successfully\n");
 	return 0;
-
-scrub:
-	regmap_del_irq_chip(as3722->chip_irq, as3722->irq_data);
-	return ret;
-}
-
-static int as3722_i2c_remove(struct i2c_client *i2c)
-{
-	struct as3722 *as3722 = i2c_get_clientdata(i2c);
-
-	mfd_remove_devices(as3722->dev);
-	regmap_del_irq_chip(as3722->chip_irq, as3722->irq_data);
-	return 0;
 }
 
 static int __maybe_unused as3722_i2c_suspend(struct device *dev)
@@ -470,7 +458,6 @@ static struct i2c_driver as3722_i2c_driver = {
 		.pm = &as3722_pm_ops,
 	},
 	.probe = as3722_i2c_probe,
-	.remove = as3722_i2c_remove,
 	.id_table = as3722_i2c_id,
 };
 
diff --git a/drivers/mfd/asic3.c b/drivers/mfd/asic3.c
index 4dca6bc..0413c81 100644
--- a/drivers/mfd/asic3.c
+++ b/drivers/mfd/asic3.c
@@ -446,7 +446,7 @@ static int asic3_gpio_direction(struct gpio_chip *chip,
 	unsigned long flags;
 	struct asic3 *asic;
 
-	asic = container_of(chip, struct asic3, gpio);
+	asic = gpiochip_get_data(chip);
 	gpio_base = ASIC3_GPIO_TO_BASE(offset);
 
 	if (gpio_base > ASIC3_GPIO_D_BASE) {
@@ -492,7 +492,7 @@ static int asic3_gpio_get(struct gpio_chip *chip,
 	u32 mask = ASIC3_GPIO_TO_MASK(offset);
 	struct asic3 *asic;
 
-	asic = container_of(chip, struct asic3, gpio);
+	asic = gpiochip_get_data(chip);
 	gpio_base = ASIC3_GPIO_TO_BASE(offset);
 
 	if (gpio_base > ASIC3_GPIO_D_BASE) {
@@ -513,7 +513,7 @@ static void asic3_gpio_set(struct gpio_chip *chip,
 	unsigned long flags;
 	struct asic3 *asic;
 
-	asic = container_of(chip, struct asic3, gpio);
+	asic = gpiochip_get_data(chip);
 	gpio_base = ASIC3_GPIO_TO_BASE(offset);
 
 	if (gpio_base > ASIC3_GPIO_D_BASE) {
@@ -540,7 +540,7 @@ static void asic3_gpio_set(struct gpio_chip *chip,
 
 static int asic3_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
 {
-	struct asic3 *asic = container_of(chip, struct asic3, gpio);
+	struct asic3 *asic = gpiochip_get_data(chip);
 
 	return asic->irq_base + offset;
 }
@@ -595,7 +595,7 @@ static __init int asic3_gpio_probe(struct platform_device *pdev,
 				     alt_reg[i]);
 	}
 
-	return gpiochip_add(&asic->gpio);
+	return gpiochip_add_data(&asic->gpio, asic);
 }
 
 static int asic3_gpio_remove(struct platform_device *pdev)
diff --git a/drivers/mfd/atmel-hlcdc.c b/drivers/mfd/atmel-hlcdc.c
index 06c2058..eca7ea6 100644
--- a/drivers/mfd/atmel-hlcdc.c
+++ b/drivers/mfd/atmel-hlcdc.c
@@ -128,16 +128,9 @@ static int atmel_hlcdc_probe(struct platform_device *pdev)
 
 	dev_set_drvdata(dev, hlcdc);
 
-	return mfd_add_devices(dev, -1, atmel_hlcdc_cells,
-			       ARRAY_SIZE(atmel_hlcdc_cells),
-			       NULL, 0, NULL);
-}
-
-static int atmel_hlcdc_remove(struct platform_device *pdev)
-{
-	mfd_remove_devices(&pdev->dev);
-
-	return 0;
+	return devm_mfd_add_devices(dev, -1, atmel_hlcdc_cells,
+				    ARRAY_SIZE(atmel_hlcdc_cells),
+				    NULL, 0, NULL);
 }
 
 static const struct of_device_id atmel_hlcdc_match[] = {
@@ -152,7 +145,6 @@ MODULE_DEVICE_TABLE(of, atmel_hlcdc_match);
 
 static struct platform_driver atmel_hlcdc_driver = {
 	.probe = atmel_hlcdc_probe,
-	.remove = atmel_hlcdc_remove,
 	.driver = {
 		.name = "atmel-hlcdc",
 		.of_match_table = atmel_hlcdc_match,
diff --git a/drivers/mfd/axp20x-rsb.c b/drivers/mfd/axp20x-rsb.c
index 28c2024..a407527 100644
--- a/drivers/mfd/axp20x-rsb.c
+++ b/drivers/mfd/axp20x-rsb.c
@@ -61,6 +61,7 @@ static int axp20x_rsb_remove(struct sunxi_rsb_device *rdev)
 
 static const struct of_device_id axp20x_rsb_of_match[] = {
 	{ .compatible = "x-powers,axp223", .data = (void *)AXP223_ID },
+	{ .compatible = "x-powers,axp809", .data = (void *)AXP809_ID },
 	{ },
 };
 MODULE_DEVICE_TABLE(of, axp20x_rsb_of_match);
diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c
index a57d6e9..e4e3297 100644
--- a/drivers/mfd/axp20x.c
+++ b/drivers/mfd/axp20x.c
@@ -37,6 +37,7 @@ static const char * const axp20x_model_names[] = {
 	"AXP221",
 	"AXP223",
 	"AXP288",
+	"AXP809",
 };
 
 static const struct regmap_range axp152_writeable_ranges[] = {
@@ -85,6 +86,7 @@ static const struct regmap_access_table axp20x_volatile_table = {
 	.n_yes_ranges	= ARRAY_SIZE(axp20x_volatile_ranges),
 };
 
+/* AXP22x ranges are shared with the AXP809, as they cover the same range */
 static const struct regmap_range axp22x_writeable_ranges[] = {
 	regmap_reg_range(AXP20X_DATACACHE(0), AXP20X_IRQ5_STATE),
 	regmap_reg_range(AXP20X_DCDC_MODE, AXP22X_BATLOW_THRES1),
@@ -128,6 +130,12 @@ static struct resource axp152_pek_resources[] = {
 	DEFINE_RES_IRQ_NAMED(AXP152_IRQ_PEK_FAL_EDGE, "PEK_DBF"),
 };
 
+static struct resource axp20x_ac_power_supply_resources[] = {
+	DEFINE_RES_IRQ_NAMED(AXP20X_IRQ_ACIN_PLUGIN, "ACIN_PLUGIN"),
+	DEFINE_RES_IRQ_NAMED(AXP20X_IRQ_ACIN_REMOVAL, "ACIN_REMOVAL"),
+	DEFINE_RES_IRQ_NAMED(AXP20X_IRQ_ACIN_OVER_V, "ACIN_OVER_V"),
+};
+
 static struct resource axp20x_pek_resources[] = {
 	{
 		.name	= "PEK_DBR",
@@ -211,6 +219,20 @@ static struct resource axp288_fuel_gauge_resources[] = {
 	},
 };
 
+static struct resource axp809_pek_resources[] = {
+	{
+		.name   = "PEK_DBR",
+		.start  = AXP809_IRQ_PEK_RIS_EDGE,
+		.end    = AXP809_IRQ_PEK_RIS_EDGE,
+		.flags  = IORESOURCE_IRQ,
+	}, {
+		.name   = "PEK_DBF",
+		.start  = AXP809_IRQ_PEK_FAL_EDGE,
+		.end    = AXP809_IRQ_PEK_FAL_EDGE,
+		.flags  = IORESOURCE_IRQ,
+	},
+};
+
 static const struct regmap_config axp152_regmap_config = {
 	.reg_bits	= 8,
 	.val_bits	= 8,
@@ -378,6 +400,41 @@ static const struct regmap_irq axp288_regmap_irqs[] = {
 	INIT_REGMAP_IRQ(AXP288, BC_USB_CHNG,            5, 1),
 };
 
+static const struct regmap_irq axp809_regmap_irqs[] = {
+	INIT_REGMAP_IRQ(AXP809, ACIN_OVER_V,		0, 7),
+	INIT_REGMAP_IRQ(AXP809, ACIN_PLUGIN,		0, 6),
+	INIT_REGMAP_IRQ(AXP809, ACIN_REMOVAL,	        0, 5),
+	INIT_REGMAP_IRQ(AXP809, VBUS_OVER_V,		0, 4),
+	INIT_REGMAP_IRQ(AXP809, VBUS_PLUGIN,		0, 3),
+	INIT_REGMAP_IRQ(AXP809, VBUS_REMOVAL,	        0, 2),
+	INIT_REGMAP_IRQ(AXP809, VBUS_V_LOW,		0, 1),
+	INIT_REGMAP_IRQ(AXP809, BATT_PLUGIN,		1, 7),
+	INIT_REGMAP_IRQ(AXP809, BATT_REMOVAL,	        1, 6),
+	INIT_REGMAP_IRQ(AXP809, BATT_ENT_ACT_MODE,	1, 5),
+	INIT_REGMAP_IRQ(AXP809, BATT_EXIT_ACT_MODE,	1, 4),
+	INIT_REGMAP_IRQ(AXP809, CHARG,		        1, 3),
+	INIT_REGMAP_IRQ(AXP809, CHARG_DONE,		1, 2),
+	INIT_REGMAP_IRQ(AXP809, BATT_CHG_TEMP_HIGH,	2, 7),
+	INIT_REGMAP_IRQ(AXP809, BATT_CHG_TEMP_HIGH_END,	2, 6),
+	INIT_REGMAP_IRQ(AXP809, BATT_CHG_TEMP_LOW,	2, 5),
+	INIT_REGMAP_IRQ(AXP809, BATT_CHG_TEMP_LOW_END,	2, 4),
+	INIT_REGMAP_IRQ(AXP809, BATT_ACT_TEMP_HIGH,	2, 3),
+	INIT_REGMAP_IRQ(AXP809, BATT_ACT_TEMP_HIGH_END,	2, 2),
+	INIT_REGMAP_IRQ(AXP809, BATT_ACT_TEMP_LOW,	2, 1),
+	INIT_REGMAP_IRQ(AXP809, BATT_ACT_TEMP_LOW_END,	2, 0),
+	INIT_REGMAP_IRQ(AXP809, DIE_TEMP_HIGH,	        3, 7),
+	INIT_REGMAP_IRQ(AXP809, LOW_PWR_LVL1,	        3, 1),
+	INIT_REGMAP_IRQ(AXP809, LOW_PWR_LVL2,	        3, 0),
+	INIT_REGMAP_IRQ(AXP809, TIMER,		        4, 7),
+	INIT_REGMAP_IRQ(AXP809, PEK_RIS_EDGE,	        4, 6),
+	INIT_REGMAP_IRQ(AXP809, PEK_FAL_EDGE,	        4, 5),
+	INIT_REGMAP_IRQ(AXP809, PEK_SHORT,		4, 4),
+	INIT_REGMAP_IRQ(AXP809, PEK_LONG,		4, 3),
+	INIT_REGMAP_IRQ(AXP809, PEK_OVER_OFF,		4, 2),
+	INIT_REGMAP_IRQ(AXP809, GPIO1_INPUT,		4, 1),
+	INIT_REGMAP_IRQ(AXP809, GPIO0_INPUT,		4, 0),
+};
+
 static const struct regmap_irq_chip axp152_regmap_irq_chip = {
 	.name			= "axp152_irq_chip",
 	.status_base		= AXP152_IRQ1_STATE,
@@ -428,6 +485,18 @@ static const struct regmap_irq_chip axp288_regmap_irq_chip = {
 
 };
 
+static const struct regmap_irq_chip axp809_regmap_irq_chip = {
+	.name			= "axp809",
+	.status_base		= AXP20X_IRQ1_STATE,
+	.ack_base		= AXP20X_IRQ1_STATE,
+	.mask_base		= AXP20X_IRQ1_EN,
+	.mask_invert		= true,
+	.init_ack_masked	= true,
+	.irqs			= axp809_regmap_irqs,
+	.num_irqs		= ARRAY_SIZE(axp809_regmap_irqs),
+	.num_regs		= 5,
+};
+
 static struct mfd_cell axp20x_cells[] = {
 	{
 		.name		= "axp20x-pek",
@@ -436,6 +505,11 @@ static struct mfd_cell axp20x_cells[] = {
 	}, {
 		.name		= "axp20x-regulator",
 	}, {
+		.name		= "axp20x-ac-power-supply",
+		.of_compatible	= "x-powers,axp202-ac-power-supply",
+		.num_resources	= ARRAY_SIZE(axp20x_ac_power_supply_resources),
+		.resources	= axp20x_ac_power_supply_resources,
+	}, {
 		.name		= "axp20x-usb-power-supply",
 		.of_compatible	= "x-powers,axp202-usb-power-supply",
 		.num_resources	= ARRAY_SIZE(axp20x_usb_power_supply_resources),
@@ -572,6 +646,16 @@ static struct mfd_cell axp288_cells[] = {
 	},
 };
 
+static struct mfd_cell axp809_cells[] = {
+	{
+		.name			= "axp20x-pek",
+		.num_resources		= ARRAY_SIZE(axp809_pek_resources),
+		.resources		= axp809_pek_resources,
+	}, {
+		.name			= "axp20x-regulator",
+	},
+};
+
 static struct axp20x_dev *axp20x_pm_power_off;
 static void axp20x_power_off(void)
 {
@@ -631,6 +715,12 @@ int axp20x_match_device(struct axp20x_dev *axp20x)
 		axp20x->regmap_cfg = &axp288_regmap_config;
 		axp20x->regmap_irq_chip = &axp288_regmap_irq_chip;
 		break;
+	case AXP809_ID:
+		axp20x->nr_cells = ARRAY_SIZE(axp809_cells);
+		axp20x->cells = axp809_cells;
+		axp20x->regmap_cfg = &axp22x_regmap_config;
+		axp20x->regmap_irq_chip = &axp809_regmap_irq_chip;
+		break;
 	default:
 		dev_err(dev, "unsupported AXP20X ID %lu\n", axp20x->variant);
 		return -EINVAL;
diff --git a/drivers/mfd/bcm590xx.c b/drivers/mfd/bcm590xx.c
index 320aaef..0d76d69 100644
--- a/drivers/mfd/bcm590xx.c
+++ b/drivers/mfd/bcm590xx.c
@@ -82,8 +82,8 @@ static int bcm590xx_i2c_probe(struct i2c_client *i2c_pri,
 		goto err;
 	}
 
-	ret = mfd_add_devices(&i2c_pri->dev, -1, bcm590xx_devs,
-			      ARRAY_SIZE(bcm590xx_devs), NULL, 0, NULL);
+	ret = devm_mfd_add_devices(&i2c_pri->dev, -1, bcm590xx_devs,
+				   ARRAY_SIZE(bcm590xx_devs), NULL, 0, NULL);
 	if (ret < 0) {
 		dev_err(&i2c_pri->dev, "failed to add sub-devices: %d\n", ret);
 		goto err;
@@ -96,12 +96,6 @@ err:
 	return ret;
 }
 
-static int bcm590xx_i2c_remove(struct i2c_client *i2c)
-{
-	mfd_remove_devices(&i2c->dev);
-	return 0;
-}
-
 static const struct of_device_id bcm590xx_of_match[] = {
 	{ .compatible = "brcm,bcm59056" },
 	{ }
@@ -120,7 +114,6 @@ static struct i2c_driver bcm590xx_i2c_driver = {
 		   .of_match_table = of_match_ptr(bcm590xx_of_match),
 	},
 	.probe = bcm590xx_i2c_probe,
-	.remove = bcm590xx_i2c_remove,
 	.id_table = bcm590xx_i2c_id,
 };
 module_i2c_driver(bcm590xx_i2c_driver);
diff --git a/drivers/mfd/da9063-irq.c b/drivers/mfd/da9063-irq.c
index 2630263..7e903fc 100644
--- a/drivers/mfd/da9063-irq.c
+++ b/drivers/mfd/da9063-irq.c
@@ -25,14 +25,6 @@
 #define	DA9063_REG_EVENT_B_OFFSET	1
 #define	DA9063_REG_EVENT_C_OFFSET	2
 #define	DA9063_REG_EVENT_D_OFFSET	3
-#define EVENTS_BUF_LEN			4
-
-static const u8 mask_events_buf[] = { [0 ... (EVENTS_BUF_LEN - 1)] = ~0 };
-
-struct da9063_irq_data {
-	u16 reg;
-	u8 mask;
-};
 
 static const struct regmap_irq da9063_irqs[] = {
 	/* DA9063 event A register */
diff --git a/drivers/mfd/dm355evm_msp.c b/drivers/mfd/dm355evm_msp.c
index ec4438e..14661ec 100644
--- a/drivers/mfd/dm355evm_msp.c
+++ b/drivers/mfd/dm355evm_msp.c
@@ -33,25 +33,25 @@
  * This driver was tested with firmware revision A4.
  */
 
-#if defined(CONFIG_INPUT_DM355EVM) || defined(CONFIG_INPUT_DM355EVM_MODULE)
+#if IS_ENABLED(CONFIG_INPUT_DM355EVM)
 #define msp_has_keyboard()	true
 #else
 #define msp_has_keyboard()	false
 #endif
 
-#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
+#if IS_ENABLED(CONFIG_LEDS_GPIO)
 #define msp_has_leds()		true
 #else
 #define msp_has_leds()		false
 #endif
 
-#if defined(CONFIG_RTC_DRV_DM355EVM) || defined(CONFIG_RTC_DRV_DM355EVM_MODULE)
+#if IS_ENABLED(CONFIG_RTC_DRV_DM355EVM)
 #define msp_has_rtc()		true
 #else
 #define msp_has_rtc()		false
 #endif
 
-#if defined(CONFIG_VIDEO_TVP514X) || defined(CONFIG_VIDEO_TVP514X_MODULE)
+#if IS_ENABLED(CONFIG_VIDEO_TVP514X)
 #define msp_has_tvp()		true
 #else
 #define msp_has_tvp()		false
@@ -260,7 +260,7 @@ static int add_children(struct i2c_client *client)
 
 	/* GPIO-ish stuff */
 	dm355evm_msp_gpio.parent = &client->dev;
-	status = gpiochip_add(&dm355evm_msp_gpio);
+	status = gpiochip_add_data(&dm355evm_msp_gpio, NULL);
 	if (status < 0)
 		return status;
 
diff --git a/drivers/mfd/hi6421-pmic-core.c b/drivers/mfd/hi6421-pmic-core.c
index f9ded45..3fd703f 100644
--- a/drivers/mfd/hi6421-pmic-core.c
+++ b/drivers/mfd/hi6421-pmic-core.c
@@ -76,8 +76,8 @@ static int hi6421_pmic_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, pmic);
 
-	ret = mfd_add_devices(&pdev->dev, 0, hi6421_devs,
-			ARRAY_SIZE(hi6421_devs), NULL, 0, NULL);
+	ret = devm_mfd_add_devices(&pdev->dev, 0, hi6421_devs,
+				   ARRAY_SIZE(hi6421_devs), NULL, 0, NULL);
 	if (ret) {
 		dev_err(&pdev->dev, "add mfd devices failed: %d\n", ret);
 		return ret;
@@ -86,13 +86,6 @@ static int hi6421_pmic_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int hi6421_pmic_remove(struct platform_device *pdev)
-{
-	mfd_remove_devices(&pdev->dev);
-
-	return 0;
-}
-
 static const struct of_device_id of_hi6421_pmic_match_tbl[] = {
 	{ .compatible = "hisilicon,hi6421-pmic", },
 	{ },
@@ -105,7 +98,6 @@ static struct platform_driver hi6421_pmic_driver = {
 		.of_match_table = of_hi6421_pmic_match_tbl,
 	},
 	.probe	= hi6421_pmic_probe,
-	.remove	= hi6421_pmic_remove,
 };
 module_platform_driver(hi6421_pmic_driver);
 
diff --git a/drivers/mfd/hi655x-pmic.c b/drivers/mfd/hi655x-pmic.c
new file mode 100644
index 0000000..05ddc78
--- /dev/null
+++ b/drivers/mfd/hi655x-pmic.c
@@ -0,0 +1,162 @@
+/*
+ * Device driver for MFD hi655x PMIC
+ *
+ * Copyright (c) 2016 Hisilicon.
+ *
+ * Authors:
+ * Chen Feng <puck.chen@hisilicon.com>
+ * Fei  Wang <w.f@huawei.com>
+ *
+ * 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/gpio.h>
+#include <linux/io.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/hi655x-pmic.h>
+#include <linux/module.h>
+#include <linux/of_gpio.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+static const struct mfd_cell hi655x_pmic_devs[] = {
+	{ .name = "hi655x-regulator", },
+};
+
+static const struct regmap_irq hi655x_irqs[] = {
+	{ .reg_offset = 0, .mask = OTMP_D1R_INT },
+	{ .reg_offset = 0, .mask = VSYS_2P5_R_INT },
+	{ .reg_offset = 0, .mask = VSYS_UV_D3R_INT },
+	{ .reg_offset = 0, .mask = VSYS_6P0_D200UR_INT },
+	{ .reg_offset = 0, .mask = PWRON_D4SR_INT },
+	{ .reg_offset = 0, .mask = PWRON_D20F_INT },
+	{ .reg_offset = 0, .mask = PWRON_D20R_INT },
+	{ .reg_offset = 0, .mask = RESERVE_INT },
+};
+
+static const struct regmap_irq_chip hi655x_irq_chip = {
+	.name = "hi655x-pmic",
+	.irqs = hi655x_irqs,
+	.num_regs = 1,
+	.num_irqs = ARRAY_SIZE(hi655x_irqs),
+	.status_base = HI655X_IRQ_STAT_BASE,
+	.mask_base = HI655X_IRQ_MASK_BASE,
+};
+
+static struct regmap_config hi655x_regmap_config = {
+	.reg_bits = 32,
+	.reg_stride = HI655X_STRIDE,
+	.val_bits = 8,
+	.max_register = HI655X_BUS_ADDR(0xFFF),
+};
+
+static void hi655x_local_irq_clear(struct regmap *map)
+{
+	int i;
+
+	regmap_write(map, HI655X_ANA_IRQM_BASE, HI655X_IRQ_CLR);
+	for (i = 0; i < HI655X_IRQ_ARRAY; i++) {
+		regmap_write(map, HI655X_IRQ_STAT_BASE + i * HI655X_STRIDE,
+			     HI655X_IRQ_CLR);
+	}
+}
+
+static int hi655x_pmic_probe(struct platform_device *pdev)
+{
+	int ret;
+	struct hi655x_pmic *pmic;
+	struct device *dev = &pdev->dev;
+	struct device_node *np = dev->of_node;
+	void __iomem *base;
+
+	pmic = devm_kzalloc(dev, sizeof(*pmic), GFP_KERNEL);
+	if (!pmic)
+		return -ENOMEM;
+	pmic->dev = dev;
+
+	pmic->res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!pmic->res)
+		return -ENOENT;
+
+	base = devm_ioremap_resource(dev, pmic->res);
+	if (!base)
+		return -ENOMEM;
+
+	pmic->regmap = devm_regmap_init_mmio_clk(dev, NULL, base,
+						 &hi655x_regmap_config);
+
+	regmap_read(pmic->regmap, HI655X_BUS_ADDR(HI655X_VER_REG), &pmic->ver);
+	if ((pmic->ver < PMU_VER_START) || (pmic->ver > PMU_VER_END)) {
+		dev_warn(dev, "PMU version %d unsupported\n", pmic->ver);
+		return -EINVAL;
+	}
+
+	hi655x_local_irq_clear(pmic->regmap);
+
+	pmic->gpio = of_get_named_gpio(np, "pmic-gpios", 0);
+	if (!gpio_is_valid(pmic->gpio)) {
+		dev_err(dev, "Failed to get the pmic-gpios\n");
+		return -ENODEV;
+	}
+
+	ret = devm_gpio_request_one(dev, pmic->gpio, GPIOF_IN,
+				    "hi655x_pmic_irq");
+	if (ret < 0) {
+		dev_err(dev, "Failed to request gpio %d  ret = %d\n",
+			pmic->gpio, ret);
+		return ret;
+	}
+
+	ret = regmap_add_irq_chip(pmic->regmap, gpio_to_irq(pmic->gpio),
+				  IRQF_TRIGGER_LOW | IRQF_NO_SUSPEND, 0,
+				  &hi655x_irq_chip, &pmic->irq_data);
+	if (ret) {
+		dev_err(dev, "Failed to obtain 'hi655x_pmic_irq' %d\n", ret);
+		return ret;
+	}
+
+	platform_set_drvdata(pdev, pmic);
+
+	ret = mfd_add_devices(dev, PLATFORM_DEVID_AUTO, hi655x_pmic_devs,
+			      ARRAY_SIZE(hi655x_pmic_devs), NULL, 0, NULL);
+	if (ret) {
+		dev_err(dev, "Failed to register device %d\n", ret);
+		regmap_del_irq_chip(gpio_to_irq(pmic->gpio), pmic->irq_data);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int hi655x_pmic_remove(struct platform_device *pdev)
+{
+	struct hi655x_pmic *pmic = platform_get_drvdata(pdev);
+
+	regmap_del_irq_chip(gpio_to_irq(pmic->gpio), pmic->irq_data);
+	mfd_remove_devices(&pdev->dev);
+	return 0;
+}
+
+static const struct of_device_id hi655x_pmic_match[] = {
+	{ .compatible = "hisilicon,hi655x-pmic", },
+	{},
+};
+
+static struct platform_driver hi655x_pmic_driver = {
+	.driver	= {
+		.name =	"hi655x-pmic",
+		.of_match_table = of_match_ptr(hi655x_pmic_match),
+	},
+	.probe  = hi655x_pmic_probe,
+	.remove = hi655x_pmic_remove,
+};
+module_platform_driver(hi655x_pmic_driver);
+
+MODULE_AUTHOR("Chen Feng <puck.chen@hisilicon.com>");
+MODULE_DESCRIPTION("Hisilicon hi655x PMIC driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/mfd/htc-egpio.c b/drivers/mfd/htc-egpio.c
index c636b5f..513cfc5 100644
--- a/drivers/mfd/htc-egpio.c
+++ b/drivers/mfd/htc-egpio.c
@@ -155,7 +155,7 @@ static int egpio_get(struct gpio_chip *chip, unsigned offset)
 
 	pr_debug("egpio_get_value(%d)\n", chip->base + offset);
 
-	egpio = container_of(chip, struct egpio_chip, chip);
+	egpio = gpiochip_get_data(chip);
 	ei    = dev_get_drvdata(egpio->dev);
 	bit   = egpio_bit(ei, offset);
 	reg   = egpio->reg_start + egpio_pos(ei, offset);
@@ -170,7 +170,7 @@ static int egpio_direction_input(struct gpio_chip *chip, unsigned offset)
 {
 	struct egpio_chip *egpio;
 
-	egpio = container_of(chip, struct egpio_chip, chip);
+	egpio = gpiochip_get_data(chip);
 	return test_bit(offset, &egpio->is_out) ? -EINVAL : 0;
 }
 
@@ -192,7 +192,7 @@ static void egpio_set(struct gpio_chip *chip, unsigned offset, int value)
 	pr_debug("egpio_set(%s, %d(%d), %d)\n",
 			chip->label, offset, offset+chip->base, value);
 
-	egpio = container_of(chip, struct egpio_chip, chip);
+	egpio = gpiochip_get_data(chip);
 	ei    = dev_get_drvdata(egpio->dev);
 	bit   = egpio_bit(ei, offset);
 	pos   = egpio_pos(ei, offset);
@@ -216,7 +216,7 @@ static int egpio_direction_output(struct gpio_chip *chip,
 {
 	struct egpio_chip *egpio;
 
-	egpio = container_of(chip, struct egpio_chip, chip);
+	egpio = gpiochip_get_data(chip);
 	if (test_bit(offset, &egpio->is_out)) {
 		egpio_set(chip, offset, value);
 		return 0;
@@ -330,7 +330,7 @@ static int __init egpio_probe(struct platform_device *pdev)
 		chip->base            = pdata->chip[i].gpio_base;
 		chip->ngpio           = pdata->chip[i].num_gpios;
 
-		gpiochip_add(chip);
+		gpiochip_add_data(chip, &ei->chip[i]);
 	}
 
 	/* Set initial pin values */
diff --git a/drivers/mfd/htc-i2cpld.c b/drivers/mfd/htc-i2cpld.c
index bd6b96d..3f9eee5 100644
--- a/drivers/mfd/htc-i2cpld.c
+++ b/drivers/mfd/htc-i2cpld.c
@@ -227,8 +227,7 @@ static irqreturn_t htcpld_handler(int irq, void *dev)
 static void htcpld_chip_set(struct gpio_chip *chip, unsigned offset, int val)
 {
 	struct i2c_client *client;
-	struct htcpld_chip *chip_data =
-		container_of(chip, struct htcpld_chip, chip_out);
+	struct htcpld_chip *chip_data = gpiochip_get_data(chip);
 	unsigned long flags;
 
 	client = chip_data->client;
@@ -257,14 +256,12 @@ static void htcpld_chip_set_ni(struct work_struct *work)
 
 static int htcpld_chip_get(struct gpio_chip *chip, unsigned offset)
 {
-	struct htcpld_chip *chip_data;
+	struct htcpld_chip *chip_data = gpiochip_get_data(chip);
 	u8 cache;
 
 	if (!strncmp(chip->label, "htcpld-out", 10)) {
-		chip_data = container_of(chip, struct htcpld_chip, chip_out);
 		cache = chip_data->cache_out;
 	} else if (!strncmp(chip->label, "htcpld-in", 9)) {
-		chip_data = container_of(chip, struct htcpld_chip, chip_in);
 		cache = chip_data->cache_in;
 	} else
 		return -EINVAL;
@@ -291,9 +288,7 @@ static int htcpld_direction_input(struct gpio_chip *chip,
 
 static int htcpld_chip_to_irq(struct gpio_chip *chip, unsigned offset)
 {
-	struct htcpld_chip *chip_data;
-
-	chip_data = container_of(chip, struct htcpld_chip, chip_in);
+	struct htcpld_chip *chip_data = gpiochip_get_data(chip);
 
 	if (offset < chip_data->nirqs)
 		return chip_data->irq_start + offset;
@@ -451,14 +446,14 @@ static int htcpld_register_chip_gpio(
 	gpio_chip->ngpio           = plat_chip_data->num_gpios;
 
 	/* Add the GPIO chips */
-	ret = gpiochip_add(&(chip->chip_out));
+	ret = gpiochip_add_data(&(chip->chip_out), chip);
 	if (ret) {
 		dev_warn(dev, "Unable to register output GPIOs for 0x%x: %d\n",
 			 plat_chip_data->addr, ret);
 		return ret;
 	}
 
-	ret = gpiochip_add(&(chip->chip_in));
+	ret = gpiochip_add_data(&(chip->chip_in), chip);
 	if (ret) {
 		dev_warn(dev, "Unable to register input GPIOs for 0x%x: %d\n",
 			 plat_chip_data->addr, ret);
diff --git a/drivers/mfd/intel-lpss.c b/drivers/mfd/intel-lpss.c
index 6352aab..41b1138 100644
--- a/drivers/mfd/intel-lpss.c
+++ b/drivers/mfd/intel-lpss.c
@@ -34,6 +34,7 @@
 #define LPSS_DEV_SIZE		0x200
 #define LPSS_PRIV_OFFSET	0x200
 #define LPSS_PRIV_SIZE		0x100
+#define LPSS_PRIV_REG_COUNT	(LPSS_PRIV_SIZE / 4)
 #define LPSS_IDMA64_OFFSET	0x800
 #define LPSS_IDMA64_SIZE	0x800
 
@@ -76,6 +77,7 @@ struct intel_lpss {
 	struct mfd_cell *cell;
 	struct device *dev;
 	void __iomem *priv;
+	u32 priv_ctx[LPSS_PRIV_REG_COUNT];
 	int devid;
 	u32 caps;
 	u32 active_ltr;
@@ -336,8 +338,8 @@ static int intel_lpss_register_clock(struct intel_lpss *lpss)
 		return 0;
 
 	/* Root clock */
-	clk = clk_register_fixed_rate(NULL, dev_name(lpss->dev), NULL,
-				      CLK_IS_ROOT, lpss->info->clk_rate);
+	clk = clk_register_fixed_rate(NULL, dev_name(lpss->dev), NULL, 0,
+				      lpss->info->clk_rate);
 	if (IS_ERR(clk))
 		return PTR_ERR(clk);
 
@@ -493,6 +495,16 @@ EXPORT_SYMBOL_GPL(intel_lpss_prepare);
 
 int intel_lpss_suspend(struct device *dev)
 {
+	struct intel_lpss *lpss = dev_get_drvdata(dev);
+	unsigned int i;
+
+	/* Save device context */
+	for (i = 0; i < LPSS_PRIV_REG_COUNT; i++)
+		lpss->priv_ctx[i] = readl(lpss->priv + i * 4);
+
+	/* Put the device into reset state */
+	writel(0, lpss->priv + LPSS_PRIV_RESETS);
+
 	return 0;
 }
 EXPORT_SYMBOL_GPL(intel_lpss_suspend);
@@ -500,8 +512,13 @@ EXPORT_SYMBOL_GPL(intel_lpss_suspend);
 int intel_lpss_resume(struct device *dev)
 {
 	struct intel_lpss *lpss = dev_get_drvdata(dev);
+	unsigned int i;
 
-	intel_lpss_init_dev(lpss);
+	intel_lpss_deassert_reset(lpss);
+
+	/* Restore device context */
+	for (i = 0; i < LPSS_PRIV_REG_COUNT; i++)
+		writel(lpss->priv_ctx[i], lpss->priv + i * 4);
 
 	return 0;
 }
diff --git a/drivers/mfd/intel_quark_i2c_gpio.c b/drivers/mfd/intel_quark_i2c_gpio.c
index a24b35f..7946d6e 100644
--- a/drivers/mfd/intel_quark_i2c_gpio.c
+++ b/drivers/mfd/intel_quark_i2c_gpio.c
@@ -53,7 +53,7 @@
 #define INTEL_QUARK_I2C_CLK_HZ	33000000
 
 struct intel_quark_mfd {
-	struct pci_dev		*pdev;
+	struct device		*dev;
 	struct clk		*i2c_clk;
 	struct clk_lookup	*i2c_clk_lookup;
 };
@@ -123,14 +123,14 @@ static const struct pci_device_id intel_quark_mfd_ids[] = {
 };
 MODULE_DEVICE_TABLE(pci, intel_quark_mfd_ids);
 
-static int intel_quark_register_i2c_clk(struct intel_quark_mfd *quark_mfd)
+static int intel_quark_register_i2c_clk(struct device *dev)
 {
-	struct pci_dev *pdev = quark_mfd->pdev;
+	struct intel_quark_mfd *quark_mfd = dev_get_drvdata(dev);
 	struct clk *i2c_clk;
 
-	i2c_clk = clk_register_fixed_rate(&pdev->dev,
+	i2c_clk = clk_register_fixed_rate(dev,
 					  INTEL_QUARK_I2C_CONTROLLER_CLK, NULL,
-					  CLK_IS_ROOT, INTEL_QUARK_I2C_CLK_HZ);
+					  0, INTEL_QUARK_I2C_CLK_HZ);
 	if (IS_ERR(i2c_clk))
 		return PTR_ERR(i2c_clk);
 
@@ -139,18 +139,19 @@ static int intel_quark_register_i2c_clk(struct intel_quark_mfd *quark_mfd)
 						INTEL_QUARK_I2C_CONTROLLER_CLK);
 
 	if (!quark_mfd->i2c_clk_lookup) {
-		dev_err(&pdev->dev, "Fixed clk register failed\n");
+		clk_unregister(quark_mfd->i2c_clk);
+		dev_err(dev, "Fixed clk register failed\n");
 		return -ENOMEM;
 	}
 
 	return 0;
 }
 
-static void intel_quark_unregister_i2c_clk(struct pci_dev *pdev)
+static void intel_quark_unregister_i2c_clk(struct device *dev)
 {
-	struct intel_quark_mfd *quark_mfd = dev_get_drvdata(&pdev->dev);
+	struct intel_quark_mfd *quark_mfd = dev_get_drvdata(dev);
 
-	if (!quark_mfd->i2c_clk || !quark_mfd->i2c_clk_lookup)
+	if (!quark_mfd->i2c_clk_lookup)
 		return;
 
 	clkdev_drop(quark_mfd->i2c_clk_lookup);
@@ -245,30 +246,38 @@ static int intel_quark_mfd_probe(struct pci_dev *pdev,
 	quark_mfd = devm_kzalloc(&pdev->dev, sizeof(*quark_mfd), GFP_KERNEL);
 	if (!quark_mfd)
 		return -ENOMEM;
-	quark_mfd->pdev = pdev;
 
-	ret = intel_quark_register_i2c_clk(quark_mfd);
+	quark_mfd->dev = &pdev->dev;
+	dev_set_drvdata(&pdev->dev, quark_mfd);
+
+	ret = intel_quark_register_i2c_clk(&pdev->dev);
 	if (ret)
 		return ret;
 
-	dev_set_drvdata(&pdev->dev, quark_mfd);
-
 	ret = intel_quark_i2c_setup(pdev, &intel_quark_mfd_cells[1]);
 	if (ret)
-		return ret;
+		goto err_unregister_i2c_clk;
 
 	ret = intel_quark_gpio_setup(pdev, &intel_quark_mfd_cells[0]);
 	if (ret)
-		return ret;
+		goto err_unregister_i2c_clk;
+
+	ret = mfd_add_devices(&pdev->dev, 0, intel_quark_mfd_cells,
+			      ARRAY_SIZE(intel_quark_mfd_cells), NULL, 0,
+			      NULL);
+	if (ret)
+		goto err_unregister_i2c_clk;
+
+	return 0;
 
-	return mfd_add_devices(&pdev->dev, 0, intel_quark_mfd_cells,
-			       ARRAY_SIZE(intel_quark_mfd_cells), NULL, 0,
-			       NULL);
+err_unregister_i2c_clk:
+	intel_quark_unregister_i2c_clk(&pdev->dev);
+	return ret;
 }
 
 static void intel_quark_mfd_remove(struct pci_dev *pdev)
 {
-	intel_quark_unregister_i2c_clk(pdev);
+	intel_quark_unregister_i2c_clk(&pdev->dev);
 	mfd_remove_devices(&pdev->dev);
 }
 
diff --git a/drivers/mfd/intel_soc_pmic_core.c b/drivers/mfd/intel_soc_pmic_core.c
index d9e15cf..12d6ebb4 100644
--- a/drivers/mfd/intel_soc_pmic_core.c
+++ b/drivers/mfd/intel_soc_pmic_core.c
@@ -35,6 +35,7 @@ static struct gpiod_lookup_table panel_gpio_table = {
 	.table = {
 		/* Panel EN/DISABLE */
 		GPIO_LOOKUP("gpio_crystalcove", 94, "panel", GPIO_ACTIVE_HIGH),
+		{ },
 	},
 };
 
diff --git a/drivers/mfd/lp3943.c b/drivers/mfd/lp3943.c
index eecbb13..65a2a8f1 100644
--- a/drivers/mfd/lp3943.c
+++ b/drivers/mfd/lp3943.c
@@ -123,16 +123,9 @@ static int lp3943_probe(struct i2c_client *cl, const struct i2c_device_id *id)
 	lp3943->mux_cfg = lp3943_mux_cfg;
 	i2c_set_clientdata(cl, lp3943);
 
-	return mfd_add_devices(dev, -1, lp3943_devs, ARRAY_SIZE(lp3943_devs),
-			       NULL, 0, NULL);
-}
-
-static int lp3943_remove(struct i2c_client *cl)
-{
-	struct lp3943 *lp3943 = i2c_get_clientdata(cl);
-
-	mfd_remove_devices(lp3943->dev);
-	return 0;
+	return devm_mfd_add_devices(dev, -1, lp3943_devs,
+				    ARRAY_SIZE(lp3943_devs),
+				    NULL, 0, NULL);
 }
 
 static const struct i2c_device_id lp3943_ids[] = {
@@ -151,7 +144,6 @@ MODULE_DEVICE_TABLE(of, lp3943_of_match);
 
 static struct i2c_driver lp3943_driver = {
 	.probe = lp3943_probe,
-	.remove = lp3943_remove,
 	.driver = {
 		.name = "lp3943",
 		.of_match_table = of_match_ptr(lp3943_of_match),
diff --git a/drivers/mfd/lp8788-irq.c b/drivers/mfd/lp8788-irq.c
index c7a9825..792d51b 100644
--- a/drivers/mfd/lp8788-irq.c
+++ b/drivers/mfd/lp8788-irq.c
@@ -112,7 +112,7 @@ static irqreturn_t lp8788_irq_handler(int irq, void *ptr)
 	struct lp8788_irq_data *irqd = ptr;
 	struct lp8788 *lp = irqd->lp;
 	u8 status[NUM_REGS], addr, mask;
-	bool handled;
+	bool handled = false;
 	int i;
 
 	if (lp8788_read_multi_bytes(lp, LP8788_INT_1, status, NUM_REGS))
diff --git a/drivers/mfd/max77620.c b/drivers/mfd/max77620.c
new file mode 100644
index 0000000..199d261
--- /dev/null
+++ b/drivers/mfd/max77620.c
@@ -0,0 +1,590 @@
+/*
+ * Maxim MAX77620 MFD Driver
+ *
+ * Copyright (C) 2016 NVIDIA CORPORATION. All rights reserved.
+ *
+ * Author:
+ *	Laxman Dewangan <ldewangan@nvidia.com>
+ *	Chaitanya Bandi <bandik@nvidia.com>
+ *	Mallikarjun Kasoju <mkasoju@nvidia.com>
+ *
+ * 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.
+ */
+
+/****************** Teminology used in driver ********************
+ * Here are some terminology used from datasheet for quick reference:
+ * Flexible Power Sequence (FPS):
+ * The Flexible Power Sequencer (FPS) allows each regulator to power up under
+ * hardware or software control. Additionally, each regulator can power on
+ * independently or among a group of other regulators with an adjustable
+ * power-up and power-down delays (sequencing). GPIO1, GPIO2, and GPIO3 can
+ * be programmed to be part of a sequence allowing external regulators to be
+ * sequenced along with internal regulators. 32KHz clock can be programmed to
+ * be part of a sequence.
+ * There is 3 FPS confguration registers and all resources are configured to
+ * any of these FPS or no FPS.
+ */
+
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/max77620.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+
+static struct resource gpio_resources[] = {
+	DEFINE_RES_IRQ(MAX77620_IRQ_TOP_GPIO),
+};
+
+static struct resource power_resources[] = {
+	DEFINE_RES_IRQ(MAX77620_IRQ_LBT_MBATLOW),
+};
+
+static struct resource rtc_resources[] = {
+	DEFINE_RES_IRQ(MAX77620_IRQ_TOP_RTC),
+};
+
+static struct resource thermal_resources[] = {
+	DEFINE_RES_IRQ(MAX77620_IRQ_LBT_TJALRM1),
+	DEFINE_RES_IRQ(MAX77620_IRQ_LBT_TJALRM2),
+};
+
+static const struct regmap_irq max77620_top_irqs[] = {
+	REGMAP_IRQ_REG(MAX77620_IRQ_TOP_GLBL, 0, MAX77620_IRQ_TOP_GLBL_MASK),
+	REGMAP_IRQ_REG(MAX77620_IRQ_TOP_SD, 0, MAX77620_IRQ_TOP_SD_MASK),
+	REGMAP_IRQ_REG(MAX77620_IRQ_TOP_LDO, 0, MAX77620_IRQ_TOP_LDO_MASK),
+	REGMAP_IRQ_REG(MAX77620_IRQ_TOP_GPIO, 0, MAX77620_IRQ_TOP_GPIO_MASK),
+	REGMAP_IRQ_REG(MAX77620_IRQ_TOP_RTC, 0, MAX77620_IRQ_TOP_RTC_MASK),
+	REGMAP_IRQ_REG(MAX77620_IRQ_TOP_32K, 0, MAX77620_IRQ_TOP_32K_MASK),
+	REGMAP_IRQ_REG(MAX77620_IRQ_TOP_ONOFF, 0, MAX77620_IRQ_TOP_ONOFF_MASK),
+	REGMAP_IRQ_REG(MAX77620_IRQ_LBT_MBATLOW, 1, MAX77620_IRQ_LBM_MASK),
+	REGMAP_IRQ_REG(MAX77620_IRQ_LBT_TJALRM1, 1, MAX77620_IRQ_TJALRM1_MASK),
+	REGMAP_IRQ_REG(MAX77620_IRQ_LBT_TJALRM2, 1, MAX77620_IRQ_TJALRM2_MASK),
+};
+
+static const struct mfd_cell max77620_children[] = {
+	{ .name = "max77620-pinctrl", },
+	{ .name = "max77620-clock", },
+	{ .name = "max77620-pmic", },
+	{ .name = "max77620-watchdog", },
+	{
+		.name = "max77620-gpio",
+		.resources = gpio_resources,
+		.num_resources = ARRAY_SIZE(gpio_resources),
+	}, {
+		.name = "max77620-rtc",
+		.resources = rtc_resources,
+		.num_resources = ARRAY_SIZE(rtc_resources),
+	}, {
+		.name = "max77620-power",
+		.resources = power_resources,
+		.num_resources = ARRAY_SIZE(power_resources),
+	}, {
+		.name = "max77620-thermal",
+		.resources = thermal_resources,
+		.num_resources = ARRAY_SIZE(thermal_resources),
+	},
+};
+
+static const struct mfd_cell max20024_children[] = {
+	{ .name = "max20024-pinctrl", },
+	{ .name = "max77620-clock", },
+	{ .name = "max20024-pmic", },
+	{ .name = "max77620-watchdog", },
+	{
+		.name = "max77620-gpio",
+		.resources = gpio_resources,
+		.num_resources = ARRAY_SIZE(gpio_resources),
+	}, {
+		.name = "max77620-rtc",
+		.resources = rtc_resources,
+		.num_resources = ARRAY_SIZE(rtc_resources),
+	}, {
+		.name = "max20024-power",
+		.resources = power_resources,
+		.num_resources = ARRAY_SIZE(power_resources),
+	},
+};
+
+static struct regmap_irq_chip max77620_top_irq_chip = {
+	.name = "max77620-top",
+	.irqs = max77620_top_irqs,
+	.num_irqs = ARRAY_SIZE(max77620_top_irqs),
+	.num_regs = 2,
+	.status_base = MAX77620_REG_IRQTOP,
+	.mask_base = MAX77620_REG_IRQTOPM,
+};
+
+static const struct regmap_range max77620_readable_ranges[] = {
+	regmap_reg_range(MAX77620_REG_CNFGGLBL1, MAX77620_REG_DVSSD4),
+};
+
+static const struct regmap_access_table max77620_readable_table = {
+	.yes_ranges = max77620_readable_ranges,
+	.n_yes_ranges = ARRAY_SIZE(max77620_readable_ranges),
+};
+
+static const struct regmap_range max20024_readable_ranges[] = {
+	regmap_reg_range(MAX77620_REG_CNFGGLBL1, MAX77620_REG_DVSSD4),
+	regmap_reg_range(MAX20024_REG_MAX_ADD, MAX20024_REG_MAX_ADD),
+};
+
+static const struct regmap_access_table max20024_readable_table = {
+	.yes_ranges = max20024_readable_ranges,
+	.n_yes_ranges = ARRAY_SIZE(max20024_readable_ranges),
+};
+
+static const struct regmap_range max77620_writable_ranges[] = {
+	regmap_reg_range(MAX77620_REG_CNFGGLBL1, MAX77620_REG_DVSSD4),
+};
+
+static const struct regmap_access_table max77620_writable_table = {
+	.yes_ranges = max77620_writable_ranges,
+	.n_yes_ranges = ARRAY_SIZE(max77620_writable_ranges),
+};
+
+static const struct regmap_range max77620_cacheable_ranges[] = {
+	regmap_reg_range(MAX77620_REG_SD0_CFG, MAX77620_REG_LDO_CFG3),
+	regmap_reg_range(MAX77620_REG_FPS_CFG0, MAX77620_REG_FPS_SD3),
+};
+
+static const struct regmap_access_table max77620_volatile_table = {
+	.no_ranges = max77620_cacheable_ranges,
+	.n_no_ranges = ARRAY_SIZE(max77620_cacheable_ranges),
+};
+
+static const struct regmap_config max77620_regmap_config = {
+	.name = "power-slave",
+	.reg_bits = 8,
+	.val_bits = 8,
+	.max_register = MAX77620_REG_DVSSD4 + 1,
+	.cache_type = REGCACHE_RBTREE,
+	.rd_table = &max77620_readable_table,
+	.wr_table = &max77620_writable_table,
+	.volatile_table = &max77620_volatile_table,
+};
+
+static const struct regmap_config max20024_regmap_config = {
+	.name = "power-slave",
+	.reg_bits = 8,
+	.val_bits = 8,
+	.max_register = MAX20024_REG_MAX_ADD + 1,
+	.cache_type = REGCACHE_RBTREE,
+	.rd_table = &max20024_readable_table,
+	.wr_table = &max77620_writable_table,
+	.volatile_table = &max77620_volatile_table,
+};
+
+/* max77620_get_fps_period_reg_value:  Get FPS bit field value from
+ *				       requested periods.
+ * MAX77620 supports the FPS period of 40, 80, 160, 320, 540, 1280, 2560
+ * and 5120 microseconds. MAX20024 supports the FPS period of 20, 40, 80,
+ * 160, 320, 540, 1280 and 2560 microseconds.
+ * The FPS register has 3 bits field to set the FPS period as
+ * bits		max77620		max20024
+ * 000		40			20
+ * 001		80			40
+ * :::
+*/
+static int max77620_get_fps_period_reg_value(struct max77620_chip *chip,
+					     int tperiod)
+{
+	int fps_min_period;
+	int i;
+
+	switch (chip->chip_id) {
+	case MAX20024:
+		fps_min_period = MAX20024_FPS_PERIOD_MIN_US;
+		break;
+	case MAX77620:
+		fps_min_period = MAX77620_FPS_PERIOD_MIN_US;
+	default:
+		return -EINVAL;
+	}
+
+	for (i = 0; i < 7; i++) {
+		if (fps_min_period >= tperiod)
+			return i;
+		fps_min_period *= 2;
+	}
+
+	return i;
+}
+
+/* max77620_config_fps: Configure FPS configuration registers
+ *			based on platform specific information.
+ */
+static int max77620_config_fps(struct max77620_chip *chip,
+			       struct device_node *fps_np)
+{
+	struct device *dev = chip->dev;
+	unsigned int mask = 0, config = 0;
+	u32 fps_max_period;
+	u32 param_val;
+	int tperiod, fps_id;
+	int ret;
+	char fps_name[10];
+
+	switch (chip->chip_id) {
+	case MAX20024:
+		fps_max_period = MAX20024_FPS_PERIOD_MAX_US;
+		break;
+	case MAX77620:
+		fps_max_period = MAX77620_FPS_PERIOD_MAX_US;
+	default:
+		return -EINVAL;
+	}
+
+	for (fps_id = 0; fps_id < MAX77620_FPS_COUNT; fps_id++) {
+		sprintf(fps_name, "fps%d", fps_id);
+		if (!strcmp(fps_np->name, fps_name))
+			break;
+	}
+
+	if (fps_id == MAX77620_FPS_COUNT) {
+		dev_err(dev, "FPS node name %s is not valid\n", fps_np->name);
+		return -EINVAL;
+	}
+
+	ret = of_property_read_u32(fps_np, "maxim,shutdown-fps-time-period-us",
+				   &param_val);
+	if (!ret) {
+		mask |= MAX77620_FPS_TIME_PERIOD_MASK;
+		chip->shutdown_fps_period[fps_id] = min(param_val,
+							fps_max_period);
+		tperiod = max77620_get_fps_period_reg_value(chip,
+				chip->shutdown_fps_period[fps_id]);
+		config |= tperiod << MAX77620_FPS_TIME_PERIOD_SHIFT;
+	}
+
+	ret = of_property_read_u32(fps_np, "maxim,suspend-fps-time-period-us",
+				   &param_val);
+	if (!ret)
+		chip->suspend_fps_period[fps_id] = min(param_val,
+						       fps_max_period);
+
+	ret = of_property_read_u32(fps_np, "maxim,fps-event-source",
+				   &param_val);
+	if (!ret) {
+		if (param_val > 2) {
+			dev_err(dev, "FPS%d event-source invalid\n", fps_id);
+			return -EINVAL;
+		}
+		mask |= MAX77620_FPS_EN_SRC_MASK;
+		config |= param_val << MAX77620_FPS_EN_SRC_SHIFT;
+		if (param_val == 2) {
+			mask |= MAX77620_FPS_ENFPS_SW_MASK;
+			config |= MAX77620_FPS_ENFPS_SW;
+		}
+	}
+
+	if (!chip->sleep_enable && !chip->enable_global_lpm) {
+		ret = of_property_read_u32(fps_np,
+				"maxim,device-state-on-disabled-event",
+				&param_val);
+		if (!ret) {
+			if (param_val == 0)
+				chip->sleep_enable = true;
+			else if (param_val == 1)
+				chip->enable_global_lpm = true;
+		}
+	}
+
+	ret = regmap_update_bits(chip->rmap, MAX77620_REG_FPS_CFG0 + fps_id,
+				 mask, config);
+	if (ret < 0) {
+		dev_err(dev, "Failed to update FPS CFG: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int max77620_initialise_fps(struct max77620_chip *chip)
+{
+	struct device *dev = chip->dev;
+	struct device_node *fps_np, *fps_child;
+	u8 config;
+	int fps_id;
+	int ret;
+
+	for (fps_id = 0; fps_id < MAX77620_FPS_COUNT; fps_id++) {
+		chip->shutdown_fps_period[fps_id] = -1;
+		chip->suspend_fps_period[fps_id] = -1;
+	}
+
+	fps_np = of_get_child_by_name(dev->of_node, "fps");
+	if (!fps_np)
+		goto skip_fps;
+
+	for_each_child_of_node(fps_np, fps_child) {
+		ret = max77620_config_fps(chip, fps_child);
+		if (ret < 0)
+			return ret;
+	}
+
+	config = chip->enable_global_lpm ? MAX77620_ONOFFCNFG2_SLP_LPM_MSK : 0;
+	ret = regmap_update_bits(chip->rmap, MAX77620_REG_ONOFFCNFG2,
+				 MAX77620_ONOFFCNFG2_SLP_LPM_MSK, config);
+	if (ret < 0) {
+		dev_err(dev, "Failed to update SLP_LPM: %d\n", ret);
+		return ret;
+	}
+
+skip_fps:
+	/* Enable wake on EN0 pin */
+	ret = regmap_update_bits(chip->rmap, MAX77620_REG_ONOFFCNFG2,
+				 MAX77620_ONOFFCNFG2_WK_EN0,
+				 MAX77620_ONOFFCNFG2_WK_EN0);
+	if (ret < 0) {
+		dev_err(dev, "Failed to update WK_EN0: %d\n", ret);
+		return ret;
+	}
+
+	/* For MAX20024, SLPEN will be POR reset if CLRSE is b11 */
+	if ((chip->chip_id == MAX20024) && chip->sleep_enable) {
+		config = MAX77620_ONOFFCNFG1_SLPEN | MAX20024_ONOFFCNFG1_CLRSE;
+		ret = regmap_update_bits(chip->rmap, MAX77620_REG_ONOFFCNFG1,
+					 config, config);
+		if (ret < 0) {
+			dev_err(dev, "Failed to update SLPEN: %d\n", ret);
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+static int max77620_read_es_version(struct max77620_chip *chip)
+{
+	unsigned int val;
+	u8 cid_val[6];
+	int i;
+	int ret;
+
+	for (i = MAX77620_REG_CID0; i <= MAX77620_REG_CID5; i++) {
+		ret = regmap_read(chip->rmap, i, &val);
+		if (ret < 0) {
+			dev_err(chip->dev, "Failed to read CID: %d\n", ret);
+			return ret;
+		}
+		dev_dbg(chip->dev, "CID%d: 0x%02x\n",
+			i - MAX77620_REG_CID0, val);
+		cid_val[i - MAX77620_REG_CID0] = val;
+	}
+
+	/* CID4 is OTP Version  and CID5 is ES version */
+	dev_info(chip->dev, "PMIC Version OTP:0x%02X and ES:0x%X\n",
+		 cid_val[4], MAX77620_CID5_DIDM(cid_val[5]));
+
+	return ret;
+}
+
+static int max77620_probe(struct i2c_client *client,
+			  const struct i2c_device_id *id)
+{
+	const struct regmap_config *rmap_config;
+	struct max77620_chip *chip;
+	const struct mfd_cell *mfd_cells;
+	int n_mfd_cells;
+	int ret;
+
+	chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL);
+	if (!chip)
+		return -ENOMEM;
+
+	i2c_set_clientdata(client, chip);
+	chip->dev = &client->dev;
+	chip->irq_base = -1;
+	chip->chip_irq = client->irq;
+	chip->chip_id = (enum max77620_chip_id)id->driver_data;
+
+	switch (chip->chip_id) {
+	case MAX77620:
+		mfd_cells = max77620_children;
+		n_mfd_cells = ARRAY_SIZE(max77620_children);
+		rmap_config = &max77620_regmap_config;
+		break;
+	case MAX20024:
+		mfd_cells = max20024_children;
+		n_mfd_cells = ARRAY_SIZE(max20024_children);
+		rmap_config = &max20024_regmap_config;
+		break;
+	default:
+		dev_err(chip->dev, "ChipID is invalid %d\n", chip->chip_id);
+		return -EINVAL;
+	}
+
+	chip->rmap = devm_regmap_init_i2c(client, rmap_config);
+	if (IS_ERR(chip->rmap)) {
+		ret = PTR_ERR(chip->rmap);
+		dev_err(chip->dev, "Failed to intialise regmap: %d\n", ret);
+		return ret;
+	}
+
+	ret = max77620_read_es_version(chip);
+	if (ret < 0)
+		return ret;
+
+	ret = devm_regmap_add_irq_chip(chip->dev, chip->rmap, client->irq,
+				       IRQF_ONESHOT | IRQF_SHARED,
+				       chip->irq_base, &max77620_top_irq_chip,
+				       &chip->top_irq_data);
+	if (ret < 0) {
+		dev_err(chip->dev, "Failed to add regmap irq: %d\n", ret);
+		return ret;
+	}
+
+	ret = max77620_initialise_fps(chip);
+	if (ret < 0)
+		return ret;
+
+	ret =  devm_mfd_add_devices(chip->dev, PLATFORM_DEVID_NONE,
+				    mfd_cells, n_mfd_cells, NULL, 0,
+				    regmap_irq_get_domain(chip->top_irq_data));
+	if (ret < 0) {
+		dev_err(chip->dev, "Failed to add MFD children: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int max77620_set_fps_period(struct max77620_chip *chip,
+				   int fps_id, int time_period)
+{
+	int period = max77620_get_fps_period_reg_value(chip, time_period);
+	int ret;
+
+	ret = regmap_update_bits(chip->rmap, MAX77620_REG_FPS_CFG0 + fps_id,
+				 MAX77620_FPS_TIME_PERIOD_MASK,
+				 period << MAX77620_FPS_TIME_PERIOD_SHIFT);
+	if (ret < 0) {
+		dev_err(chip->dev, "Failed to update FPS period: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int max77620_i2c_suspend(struct device *dev)
+{
+	struct max77620_chip *chip = dev_get_drvdata(dev);
+	struct i2c_client *client = to_i2c_client(dev);
+	unsigned int config;
+	int fps;
+	int ret;
+
+	for (fps = 0; fps < MAX77620_FPS_COUNT; fps++) {
+		if (chip->suspend_fps_period[fps] < 0)
+			continue;
+
+		ret = max77620_set_fps_period(chip, fps,
+					      chip->suspend_fps_period[fps]);
+		if (ret < 0)
+			return ret;
+	}
+
+	/*
+	 * For MAX20024: No need to configure SLPEN on suspend as
+	 * it will be configured on Init.
+	 */
+	if (chip->chip_id == MAX20024)
+		goto out;
+
+	config = (chip->sleep_enable) ? MAX77620_ONOFFCNFG1_SLPEN : 0;
+	ret = regmap_update_bits(chip->rmap, MAX77620_REG_ONOFFCNFG1,
+				 MAX77620_ONOFFCNFG1_SLPEN,
+				 config);
+	if (ret < 0) {
+		dev_err(dev, "Failed to configure sleep in suspend: %d\n", ret);
+		return ret;
+	}
+
+	/* Disable WK_EN0 */
+	ret = regmap_update_bits(chip->rmap, MAX77620_REG_ONOFFCNFG2,
+				 MAX77620_ONOFFCNFG2_WK_EN0, 0);
+	if (ret < 0) {
+		dev_err(dev, "Failed to configure WK_EN in suspend: %d\n", ret);
+		return ret;
+	}
+
+out:
+	disable_irq(client->irq);
+
+	return 0;
+}
+
+static int max77620_i2c_resume(struct device *dev)
+{
+	struct max77620_chip *chip = dev_get_drvdata(dev);
+	struct i2c_client *client = to_i2c_client(dev);
+	int ret;
+	int fps;
+
+	for (fps = 0; fps < MAX77620_FPS_COUNT; fps++) {
+		if (chip->shutdown_fps_period[fps] < 0)
+			continue;
+
+		ret = max77620_set_fps_period(chip, fps,
+					      chip->shutdown_fps_period[fps]);
+		if (ret < 0)
+			return ret;
+	}
+
+	/*
+	 * For MAX20024: No need to configure WKEN0 on resume as
+	 * it is configured on Init.
+	 */
+	if (chip->chip_id == MAX20024)
+		goto out;
+
+	/* Enable WK_EN0 */
+	ret = regmap_update_bits(chip->rmap, MAX77620_REG_ONOFFCNFG2,
+				 MAX77620_ONOFFCNFG2_WK_EN0,
+				 MAX77620_ONOFFCNFG2_WK_EN0);
+	if (ret < 0) {
+		dev_err(dev, "Failed to configure WK_EN0 n resume: %d\n", ret);
+		return ret;
+	}
+
+out:
+	enable_irq(client->irq);
+
+	return 0;
+}
+#endif
+
+static const struct i2c_device_id max77620_id[] = {
+	{"max77620", MAX77620},
+	{"max20024", MAX20024},
+	{},
+};
+MODULE_DEVICE_TABLE(i2c, max77620_id);
+
+static const struct dev_pm_ops max77620_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(max77620_i2c_suspend, max77620_i2c_resume)
+};
+
+static struct i2c_driver max77620_driver = {
+	.driver = {
+		.name = "max77620",
+		.pm = &max77620_pm_ops,
+	},
+	.probe = max77620_probe,
+	.id_table = max77620_id,
+};
+
+module_i2c_driver(max77620_driver);
+
+MODULE_DESCRIPTION("MAX77620/MAX20024 Multi Function Device Core Driver");
+MODULE_AUTHOR("Laxman Dewangan <ldewangan@nvidia.com>");
+MODULE_AUTHOR("Chaitanya Bandi <bandik@nvidia.com>");
+MODULE_AUTHOR("Mallikarjun Kasoju <mkasoju@nvidia.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/mfd/max77686.c b/drivers/mfd/max77686.c
index c1aff46..7b68ed7 100644
--- a/drivers/mfd/max77686.c
+++ b/drivers/mfd/max77686.c
@@ -2,7 +2,7 @@
  * max77686.c - mfd core driver for the Maxim 77686/802
  *
  * Copyright (C) 2012 Samsung Electronics
- * Chiwoong Byun <woong.byun@smasung.com>
+ * Chiwoong Byun <woong.byun@samsung.com>
  * Jonghwa Lee <jonghwa3.lee@samsung.com>
  *
  * This program is free software; you can redistribute it and/or modify
@@ -230,38 +230,24 @@ static int max77686_i2c_probe(struct i2c_client *i2c,
 		return -ENODEV;
 	}
 
-	ret = regmap_add_irq_chip(max77686->regmap, max77686->irq,
-				  IRQF_TRIGGER_FALLING | IRQF_ONESHOT |
-				  IRQF_SHARED, 0, irq_chip,
-				  &max77686->irq_data);
+	ret = devm_regmap_add_irq_chip(&i2c->dev, max77686->regmap,
+				       max77686->irq,
+				       IRQF_TRIGGER_FALLING | IRQF_ONESHOT |
+				       IRQF_SHARED, 0, irq_chip,
+				       &max77686->irq_data);
 	if (ret < 0) {
 		dev_err(&i2c->dev, "failed to add PMIC irq chip: %d\n", ret);
 		return ret;
 	}
 
-	ret = mfd_add_devices(max77686->dev, -1, cells, n_devs, NULL, 0, NULL);
+	ret = devm_mfd_add_devices(max77686->dev, -1, cells, n_devs, NULL,
+				   0, NULL);
 	if (ret < 0) {
 		dev_err(&i2c->dev, "failed to add MFD devices: %d\n", ret);
-		goto err_del_irqc;
+		return ret;
 	}
 
 	return 0;
-
-err_del_irqc:
-	regmap_del_irq_chip(max77686->irq, max77686->irq_data);
-
-	return ret;
-}
-
-static int max77686_i2c_remove(struct i2c_client *i2c)
-{
-	struct max77686_dev *max77686 = i2c_get_clientdata(i2c);
-
-	mfd_remove_devices(max77686->dev);
-
-	regmap_del_irq_chip(max77686->irq, max77686->irq_data);
-
-	return 0;
 }
 
 static const struct i2c_device_id max77686_i2c_id[] = {
@@ -317,22 +303,10 @@ static struct i2c_driver max77686_i2c_driver = {
 		   .of_match_table = of_match_ptr(max77686_pmic_dt_match),
 	},
 	.probe = max77686_i2c_probe,
-	.remove = max77686_i2c_remove,
 	.id_table = max77686_i2c_id,
 };
 
-static int __init max77686_i2c_init(void)
-{
-	return i2c_add_driver(&max77686_i2c_driver);
-}
-/* init early so consumer devices can complete system boot */
-subsys_initcall(max77686_i2c_init);
-
-static void __exit max77686_i2c_exit(void)
-{
-	i2c_del_driver(&max77686_i2c_driver);
-}
-module_exit(max77686_i2c_exit);
+module_i2c_driver(max77686_i2c_driver);
 
 MODULE_DESCRIPTION("MAXIM 77686/802 multi-function core driver");
 MODULE_AUTHOR("Chiwoong Byun <woong.byun@samsung.com>");
diff --git a/drivers/mfd/max77693.c b/drivers/mfd/max77693.c
index b83b7a7..662ae0d 100644
--- a/drivers/mfd/max77693.c
+++ b/drivers/mfd/max77693.c
@@ -2,7 +2,7 @@
  * max77693.c - mfd core driver for the MAX 77693
  *
  * Copyright (C) 2012 Samsung Electronics
- * SangYoung Son <hello.son@smasung.com>
+ * SangYoung Son <hello.son@samsung.com>
  *
  * This program is not provided / owned by Maxim Integrated Products.
  *
@@ -368,6 +368,7 @@ static const struct of_device_id max77693_dt_match[] = {
 	{ .compatible = "maxim,max77693" },
 	{},
 };
+MODULE_DEVICE_TABLE(of, max77693_dt_match);
 #endif
 
 static struct i2c_driver max77693_i2c_driver = {
@@ -381,18 +382,7 @@ static struct i2c_driver max77693_i2c_driver = {
 	.id_table = max77693_i2c_id,
 };
 
-static int __init max77693_i2c_init(void)
-{
-	return i2c_add_driver(&max77693_i2c_driver);
-}
-/* init early so consumer devices can complete system boot */
-subsys_initcall(max77693_i2c_init);
-
-static void __exit max77693_i2c_exit(void)
-{
-	i2c_del_driver(&max77693_i2c_driver);
-}
-module_exit(max77693_i2c_exit);
+module_i2c_driver(max77693_i2c_driver);
 
 MODULE_DESCRIPTION("MAXIM 77693 multi-function core driver");
 MODULE_AUTHOR("SangYoung, Son <hello.son@samsung.com>");
diff --git a/drivers/mfd/menf21bmc.c b/drivers/mfd/menf21bmc.c
index 1c27434..3ad2def 100644
--- a/drivers/mfd/menf21bmc.c
+++ b/drivers/mfd/menf21bmc.c
@@ -96,8 +96,8 @@ menf21bmc_probe(struct i2c_client *client, const struct i2c_device_id *ids)
 		return ret;
 	}
 
-	ret = mfd_add_devices(&client->dev, 0, menf21bmc_cell,
-			      ARRAY_SIZE(menf21bmc_cell), NULL, 0, NULL);
+	ret = devm_mfd_add_devices(&client->dev, 0, menf21bmc_cell,
+				   ARRAY_SIZE(menf21bmc_cell), NULL, 0, NULL);
 	if (ret < 0) {
 		dev_err(&client->dev, "failed to add BMC sub-devices\n");
 		return ret;
@@ -106,12 +106,6 @@ menf21bmc_probe(struct i2c_client *client, const struct i2c_device_id *ids)
 	return 0;
 }
 
-static int menf21bmc_remove(struct i2c_client *client)
-{
-	mfd_remove_devices(&client->dev);
-	return 0;
-}
-
 static const struct i2c_device_id menf21bmc_id_table[] = {
 	{ "menf21bmc" },
 	{ }
@@ -122,7 +116,6 @@ static struct i2c_driver menf21bmc_driver = {
 	.driver.name	= "menf21bmc",
 	.id_table	= menf21bmc_id_table,
 	.probe		= menf21bmc_probe,
-	.remove		= menf21bmc_remove,
 };
 
 module_i2c_driver(menf21bmc_driver);
diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c
index fc1c1fc..3ac486a 100644
--- a/drivers/mfd/mfd-core.c
+++ b/drivers/mfd/mfd-core.c
@@ -107,7 +107,7 @@ static void mfd_acpi_add_device(const struct mfd_cell *cell,
 
 			strlcpy(ids[0].id, match->pnpid, sizeof(ids[0].id));
 			list_for_each_entry(child, &parent->children, node) {
-				if (acpi_match_device_ids(child, ids)) {
+				if (!acpi_match_device_ids(child, ids)) {
 					adev = child;
 					break;
 				}
@@ -334,6 +334,44 @@ void mfd_remove_devices(struct device *parent)
 }
 EXPORT_SYMBOL(mfd_remove_devices);
 
+static void devm_mfd_dev_release(struct device *dev, void *res)
+{
+	mfd_remove_devices(dev);
+}
+
+/**
+ * devm_mfd_add_devices - Resource managed version of mfd_add_devices()
+ *
+ * Returns 0 on success or an appropriate negative error number on failure.
+ * All child-devices of the MFD will automatically be removed when it gets
+ * unbinded.
+ */
+int devm_mfd_add_devices(struct device *dev, int id,
+			 const struct mfd_cell *cells, int n_devs,
+			 struct resource *mem_base,
+			 int irq_base, struct irq_domain *domain)
+{
+	struct device **ptr;
+	int ret;
+
+	ptr = devres_alloc(devm_mfd_dev_release, sizeof(*ptr), GFP_KERNEL);
+	if (!ptr)
+		return -ENOMEM;
+
+	ret = mfd_add_devices(dev, id, cells, n_devs, mem_base,
+			      irq_base, domain);
+	if (ret < 0) {
+		devres_free(ptr);
+		return ret;
+	}
+
+	*ptr = dev;
+	devres_add(dev, ptr);
+
+	return ret;
+}
+EXPORT_SYMBOL(devm_mfd_add_devices);
+
 int mfd_clone_cell(const char *cell, const char **clones, size_t n_clones)
 {
 	struct mfd_cell cell_entry;
diff --git a/drivers/mfd/mt6397-core.c b/drivers/mfd/mt6397-core.c
index 8e8d932..e14d8b0 100644
--- a/drivers/mfd/mt6397-core.c
+++ b/drivers/mfd/mt6397-core.c
@@ -267,17 +267,26 @@ static int mt6397_probe(struct platform_device *pdev)
 	ret = regmap_read(pmic->regmap, MT6397_CID, &id);
 	if (ret) {
 		dev_err(pmic->dev, "Failed to read chip id: %d\n", ret);
-		goto fail_irq;
+		return ret;
 	}
 
+	pmic->irq = platform_get_irq(pdev, 0);
+	if (pmic->irq <= 0)
+		return pmic->irq;
+
 	switch (id & 0xff) {
 	case MT6323_CID_CODE:
 		pmic->int_con[0] = MT6323_INT_CON0;
 		pmic->int_con[1] = MT6323_INT_CON1;
 		pmic->int_status[0] = MT6323_INT_STATUS0;
 		pmic->int_status[1] = MT6323_INT_STATUS1;
-		ret = mfd_add_devices(&pdev->dev, -1, mt6323_devs,
-				ARRAY_SIZE(mt6323_devs), NULL, 0, NULL);
+		ret = mt6397_irq_init(pmic);
+		if (ret)
+			return ret;
+
+		ret = devm_mfd_add_devices(&pdev->dev, -1, mt6323_devs,
+					   ARRAY_SIZE(mt6323_devs), NULL,
+					   0, NULL);
 		break;
 
 	case MT6397_CID_CODE:
@@ -286,8 +295,13 @@ static int mt6397_probe(struct platform_device *pdev)
 		pmic->int_con[1] = MT6397_INT_CON1;
 		pmic->int_status[0] = MT6397_INT_STATUS0;
 		pmic->int_status[1] = MT6397_INT_STATUS1;
-		ret = mfd_add_devices(&pdev->dev, -1, mt6397_devs,
-				ARRAY_SIZE(mt6397_devs), NULL, 0, NULL);
+		ret = mt6397_irq_init(pmic);
+		if (ret)
+			return ret;
+
+		ret = devm_mfd_add_devices(&pdev->dev, -1, mt6397_devs,
+					   ARRAY_SIZE(mt6397_devs), NULL,
+					   0, NULL);
 		break;
 
 	default:
@@ -296,14 +310,6 @@ static int mt6397_probe(struct platform_device *pdev)
 		break;
 	}
 
-	pmic->irq = platform_get_irq(pdev, 0);
-	if (pmic->irq > 0) {
-		ret = mt6397_irq_init(pmic);
-		if (ret)
-			return ret;
-	}
-
-fail_irq:
 	if (ret) {
 		irq_domain_remove(pmic->irq_domain);
 		dev_err(&pdev->dev, "failed to add child devices: %d\n", ret);
@@ -312,13 +318,6 @@ fail_irq:
 	return ret;
 }
 
-static int mt6397_remove(struct platform_device *pdev)
-{
-	mfd_remove_devices(&pdev->dev);
-
-	return 0;
-}
-
 static const struct of_device_id mt6397_of_match[] = {
 	{ .compatible = "mediatek,mt6397" },
 	{ .compatible = "mediatek,mt6323" },
@@ -334,7 +333,6 @@ MODULE_DEVICE_TABLE(platform, mt6397_id);
 
 static struct platform_driver mt6397_driver = {
 	.probe = mt6397_probe,
-	.remove = mt6397_remove,
 	.driver = {
 		.name = "mt6397",
 		.of_match_table = of_match_ptr(mt6397_of_match),
diff --git a/drivers/mfd/omap-usb-tll.c b/drivers/mfd/omap-usb-tll.c
index b7b3e8e..c30290f 100644
--- a/drivers/mfd/omap-usb-tll.c
+++ b/drivers/mfd/omap-usb-tll.c
@@ -269,6 +269,8 @@ static int usbtll_omap_probe(struct platform_device *pdev)
 
 		if (IS_ERR(tll->ch_clk[i]))
 			dev_dbg(dev, "can't get clock : %s\n", clkname);
+		else
+			clk_prepare(tll->ch_clk[i]);
 	}
 
 	pm_runtime_put_sync(dev);
@@ -301,9 +303,12 @@ static int usbtll_omap_remove(struct platform_device *pdev)
 	tll_dev = NULL;
 	spin_unlock(&tll_lock);
 
-	for (i = 0; i < tll->nch; i++)
-		if (!IS_ERR(tll->ch_clk[i]))
+	for (i = 0; i < tll->nch; i++) {
+		if (!IS_ERR(tll->ch_clk[i])) {
+			clk_unprepare(tll->ch_clk[i]);
 			clk_put(tll->ch_clk[i]);
+		}
+	}
 
 	pm_runtime_disable(&pdev->dev);
 	return 0;
@@ -420,7 +425,7 @@ int omap_tll_enable(struct usbhs_omap_platform_data *pdata)
 			if (IS_ERR(tll->ch_clk[i]))
 				continue;
 
-			r = clk_prepare_enable(tll->ch_clk[i]);
+			r = clk_enable(tll->ch_clk[i]);
 			if (r) {
 				dev_err(tll_dev,
 				 "Error enabling ch %d clock: %d\n", i, r);
@@ -448,7 +453,7 @@ int omap_tll_disable(struct usbhs_omap_platform_data *pdata)
 	for (i = 0; i < tll->nch; i++) {
 		if (omap_usb_mode_needs_tll(pdata->port_mode[i])) {
 			if (!IS_ERR(tll->ch_clk[i]))
-				clk_disable_unprepare(tll->ch_clk[i]);
+				clk_disable(tll->ch_clk[i]);
 		}
 	}
 
diff --git a/drivers/mfd/rc5t583-irq.c b/drivers/mfd/rc5t583-irq.c
index 3f8812d..f8dde59 100644
--- a/drivers/mfd/rc5t583-irq.c
+++ b/drivers/mfd/rc5t583-irq.c
@@ -389,17 +389,10 @@ int rc5t583_irq_init(struct rc5t583 *rc5t583, int irq, int irq_base)
 		irq_clear_status_flags(__irq, IRQ_NOREQUEST);
 	}
 
-	ret = request_threaded_irq(irq, NULL, rc5t583_irq, IRQF_ONESHOT,
-				"rc5t583", rc5t583);
+	ret = devm_request_threaded_irq(rc5t583->dev, irq, NULL, rc5t583_irq,
+					IRQF_ONESHOT, "rc5t583", rc5t583);
 	if (ret < 0)
 		dev_err(rc5t583->dev,
 			"Error in registering interrupt error: %d\n", ret);
 	return ret;
 }
-
-int rc5t583_irq_exit(struct rc5t583 *rc5t583)
-{
-	if (rc5t583->chip_irq)
-		free_irq(rc5t583->chip_irq, rc5t583);
-	return 0;
-}
diff --git a/drivers/mfd/rc5t583.c b/drivers/mfd/rc5t583.c
index fc2b2d9..d12243d 100644
--- a/drivers/mfd/rc5t583.c
+++ b/drivers/mfd/rc5t583.c
@@ -252,7 +252,6 @@ static int rc5t583_i2c_probe(struct i2c_client *i2c,
 	struct rc5t583 *rc5t583;
 	struct rc5t583_platform_data *pdata = dev_get_platdata(&i2c->dev);
 	int ret;
-	bool irq_init_success = false;
 
 	if (!pdata) {
 		dev_err(&i2c->dev, "Err: Platform data not found\n");
@@ -284,32 +283,16 @@ static int rc5t583_i2c_probe(struct i2c_client *i2c,
 		/* Still continue with warning, if irq init fails */
 		if (ret)
 			dev_warn(&i2c->dev, "IRQ init failed: %d\n", ret);
-		else
-			irq_init_success = true;
 	}
 
-	ret = mfd_add_devices(rc5t583->dev, -1, rc5t583_subdevs,
-			      ARRAY_SIZE(rc5t583_subdevs), NULL, 0, NULL);
+	ret = devm_mfd_add_devices(rc5t583->dev, -1, rc5t583_subdevs,
+				   ARRAY_SIZE(rc5t583_subdevs), NULL, 0, NULL);
 	if (ret) {
 		dev_err(&i2c->dev, "add mfd devices failed: %d\n", ret);
-		goto err_add_devs;
+		return ret;
 	}
 
 	return 0;
-
-err_add_devs:
-	if (irq_init_success)
-		rc5t583_irq_exit(rc5t583);
-	return ret;
-}
-
-static int  rc5t583_i2c_remove(struct i2c_client *i2c)
-{
-	struct rc5t583 *rc5t583 = i2c_get_clientdata(i2c);
-
-	mfd_remove_devices(rc5t583->dev);
-	rc5t583_irq_exit(rc5t583);
-	return 0;
 }
 
 static const struct i2c_device_id rc5t583_i2c_id[] = {
@@ -324,7 +307,6 @@ static struct i2c_driver rc5t583_i2c_driver = {
 		   .name = "rc5t583",
 		   },
 	.probe = rc5t583_i2c_probe,
-	.remove = rc5t583_i2c_remove,
 	.id_table = rc5t583_i2c_id,
 };
 
diff --git a/drivers/mfd/rdc321x-southbridge.c b/drivers/mfd/rdc321x-southbridge.c
index 6575585..2bd8c5b 100644
--- a/drivers/mfd/rdc321x-southbridge.c
+++ b/drivers/mfd/rdc321x-southbridge.c
@@ -85,14 +85,10 @@ static int rdc321x_sb_probe(struct pci_dev *pdev,
 	rdc321x_gpio_pdata.sb_pdev = pdev;
 	rdc321x_wdt_pdata.sb_pdev = pdev;
 
-	return mfd_add_devices(&pdev->dev, -1,
-			       rdc321x_sb_cells, ARRAY_SIZE(rdc321x_sb_cells),
-			       NULL, 0, NULL);
-}
-
-static void rdc321x_sb_remove(struct pci_dev *pdev)
-{
-	mfd_remove_devices(&pdev->dev);
+	return devm_mfd_add_devices(&pdev->dev, -1,
+				    rdc321x_sb_cells,
+				    ARRAY_SIZE(rdc321x_sb_cells),
+				    NULL, 0, NULL);
 }
 
 static const struct pci_device_id rdc321x_sb_table[] = {
@@ -105,7 +101,6 @@ static struct pci_driver rdc321x_sb_driver = {
 	.name		= "RDC321x Southbridge",
 	.id_table	= rdc321x_sb_table,
 	.probe		= rdc321x_sb_probe,
-	.remove		= rdc321x_sb_remove,
 };
 
 module_pci_driver(rdc321x_sb_driver);
diff --git a/drivers/mfd/rk808.c b/drivers/mfd/rk808.c
index 4b1e439..49d7f62 100644
--- a/drivers/mfd/rk808.c
+++ b/drivers/mfd/rk808.c
@@ -213,9 +213,9 @@ static int rk808_probe(struct i2c_client *client,
 	rk808->i2c = client;
 	i2c_set_clientdata(client, rk808);
 
-	ret = mfd_add_devices(&client->dev, -1,
-			      rk808s, ARRAY_SIZE(rk808s),
-			      NULL, 0, regmap_irq_get_domain(rk808->irq_data));
+	ret = devm_mfd_add_devices(&client->dev, -1,
+				   rk808s, ARRAY_SIZE(rk808s), NULL, 0,
+				   regmap_irq_get_domain(rk808->irq_data));
 	if (ret) {
 		dev_err(&client->dev, "failed to add MFD devices %d\n", ret);
 		goto err_irq;
@@ -240,7 +240,6 @@ static int rk808_remove(struct i2c_client *client)
 	struct rk808 *rk808 = i2c_get_clientdata(client);
 
 	regmap_del_irq_chip(client->irq, rk808->irq_data);
-	mfd_remove_devices(&client->dev);
 	pm_power_off = NULL;
 
 	return 0;
diff --git a/drivers/mfd/rn5t618.c b/drivers/mfd/rn5t618.c
index 6668571..0ad51d7 100644
--- a/drivers/mfd/rn5t618.c
+++ b/drivers/mfd/rn5t618.c
@@ -78,8 +78,8 @@ static int rn5t618_i2c_probe(struct i2c_client *i2c,
 		return ret;
 	}
 
-	ret = mfd_add_devices(&i2c->dev, -1, rn5t618_cells,
-			      ARRAY_SIZE(rn5t618_cells), NULL, 0, NULL);
+	ret = devm_mfd_add_devices(&i2c->dev, -1, rn5t618_cells,
+				   ARRAY_SIZE(rn5t618_cells), NULL, 0, NULL);
 	if (ret) {
 		dev_err(&i2c->dev, "failed to add sub-devices: %d\n", ret);
 		return ret;
@@ -102,7 +102,6 @@ static int rn5t618_i2c_remove(struct i2c_client *i2c)
 		pm_power_off = NULL;
 	}
 
-	mfd_remove_devices(&i2c->dev);
 	return 0;
 }
 
diff --git a/drivers/mfd/rt5033.c b/drivers/mfd/rt5033.c
index 2b95485..9bd089c 100644
--- a/drivers/mfd/rt5033.c
+++ b/drivers/mfd/rt5033.c
@@ -97,9 +97,9 @@ static int rt5033_i2c_probe(struct i2c_client *i2c,
 		return ret;
 	}
 
-	ret = mfd_add_devices(rt5033->dev, -1, rt5033_devs,
-			ARRAY_SIZE(rt5033_devs), NULL, 0,
-			regmap_irq_get_domain(rt5033->irq_data));
+	ret = devm_mfd_add_devices(rt5033->dev, -1, rt5033_devs,
+				   ARRAY_SIZE(rt5033_devs), NULL, 0,
+				   regmap_irq_get_domain(rt5033->irq_data));
 	if (ret < 0) {
 		dev_err(&i2c->dev, "Failed to add RT5033 child devices.\n");
 		return ret;
@@ -110,13 +110,6 @@ static int rt5033_i2c_probe(struct i2c_client *i2c,
 	return 0;
 }
 
-static int rt5033_i2c_remove(struct i2c_client *i2c)
-{
-	mfd_remove_devices(&i2c->dev);
-
-	return 0;
-}
-
 static const struct i2c_device_id rt5033_i2c_id[] = {
 	{ "rt5033", },
 	{ }
@@ -135,7 +128,6 @@ static struct i2c_driver rt5033_driver = {
 		.of_match_table = of_match_ptr(rt5033_dt_match),
 	},
 	.probe = rt5033_i2c_probe,
-	.remove = rt5033_i2c_remove,
 	.id_table = rt5033_i2c_id,
 };
 module_i2c_driver(rt5033_driver);
diff --git a/drivers/mfd/sec-core.c b/drivers/mfd/sec-core.c
index 400e1d7..ca6b80d 100644
--- a/drivers/mfd/sec-core.c
+++ b/drivers/mfd/sec-core.c
@@ -481,29 +481,16 @@ static int sec_pmic_probe(struct i2c_client *i2c,
 		/* If this happens the probe function is problem */
 		BUG();
 	}
-	ret = mfd_add_devices(sec_pmic->dev, -1, sec_devs, num_sec_devs, NULL,
-			      0, NULL);
+	ret = devm_mfd_add_devices(sec_pmic->dev, -1, sec_devs, num_sec_devs,
+				   NULL, 0, NULL);
 	if (ret)
-		goto err_mfd;
+		return ret;
 
 	device_init_wakeup(sec_pmic->dev, sec_pmic->wakeup);
 	sec_pmic_configure(sec_pmic);
 	sec_pmic_dump_rev(sec_pmic);
 
 	return ret;
-
-err_mfd:
-	sec_irq_exit(sec_pmic);
-	return ret;
-}
-
-static int sec_pmic_remove(struct i2c_client *i2c)
-{
-	struct sec_pmic_dev *sec_pmic = i2c_get_clientdata(i2c);
-
-	mfd_remove_devices(sec_pmic->dev);
-	sec_irq_exit(sec_pmic);
-	return 0;
 }
 
 static void sec_pmic_shutdown(struct i2c_client *i2c)
@@ -583,7 +570,6 @@ static struct i2c_driver sec_pmic_driver = {
 		   .of_match_table = of_match_ptr(sec_dt_match),
 	},
 	.probe = sec_pmic_probe,
-	.remove = sec_pmic_remove,
 	.shutdown = sec_pmic_shutdown,
 	.id_table = sec_pmic_id,
 };
diff --git a/drivers/mfd/sec-irq.c b/drivers/mfd/sec-irq.c
index d77de43..5eb59c233d5 100644
--- a/drivers/mfd/sec-irq.c
+++ b/drivers/mfd/sec-irq.c
@@ -483,10 +483,11 @@ int sec_irq_init(struct sec_pmic_dev *sec_pmic)
 		return -EINVAL;
 	}
 
-	ret = regmap_add_irq_chip(sec_pmic->regmap_pmic, sec_pmic->irq,
-			  IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
-			  sec_pmic->irq_base, sec_irq_chip,
-			  &sec_pmic->irq_data);
+	ret = devm_regmap_add_irq_chip(sec_pmic->dev, sec_pmic->regmap_pmic,
+				       sec_pmic->irq,
+				       IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+				       sec_pmic->irq_base, sec_irq_chip,
+				       &sec_pmic->irq_data);
 	if (ret != 0) {
 		dev_err(sec_pmic->dev, "Failed to register IRQ chip: %d\n", ret);
 		return ret;
@@ -500,8 +501,3 @@ int sec_irq_init(struct sec_pmic_dev *sec_pmic)
 
 	return 0;
 }
-
-void sec_irq_exit(struct sec_pmic_dev *sec_pmic)
-{
-	regmap_del_irq_chip(sec_pmic->irq, sec_pmic->irq_data);
-}
diff --git a/drivers/mfd/sky81452.c b/drivers/mfd/sky81452.c
index b0c9b04..30a2a67 100644
--- a/drivers/mfd/sky81452.c
+++ b/drivers/mfd/sky81452.c
@@ -64,19 +64,14 @@ static int sky81452_probe(struct i2c_client *client,
 	cells[1].platform_data = pdata->regulator_init_data;
 	cells[1].pdata_size = sizeof(*pdata->regulator_init_data);
 
-	ret = mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells), NULL, 0, NULL);
+	ret = devm_mfd_add_devices(dev, -1, cells, ARRAY_SIZE(cells),
+				   NULL, 0, NULL);
 	if (ret)
 		dev_err(dev, "failed to add child devices. err=%d\n", ret);
 
 	return ret;
 }
 
-static int sky81452_remove(struct i2c_client *client)
-{
-	mfd_remove_devices(&client->dev);
-	return 0;
-}
-
 static const struct i2c_device_id sky81452_ids[] = {
 	{ "sky81452" },
 	{ }
@@ -97,7 +92,6 @@ static struct i2c_driver sky81452_driver = {
 		.of_match_table = of_match_ptr(sky81452_of_match),
 	},
 	.probe = sky81452_probe,
-	.remove = sky81452_remove,
 	.id_table = sky81452_ids,
 };
 
diff --git a/drivers/mfd/sm501.c b/drivers/mfd/sm501.c
index c646784..65cd0d2 100644
--- a/drivers/mfd/sm501.c
+++ b/drivers/mfd/sm501.c
@@ -879,11 +879,6 @@ static int sm501_register_display(struct sm501_devdata *sm,
 
 #ifdef CONFIG_MFD_SM501_GPIO
 
-static inline struct sm501_gpio_chip *to_sm501_gpio(struct gpio_chip *gc)
-{
-	return container_of(gc, struct sm501_gpio_chip, gpio);
-}
-
 static inline struct sm501_devdata *sm501_gpio_to_dev(struct sm501_gpio *gpio)
 {
 	return container_of(gpio, struct sm501_devdata, gpio);
@@ -892,7 +887,7 @@ static inline struct sm501_devdata *sm501_gpio_to_dev(struct sm501_gpio *gpio)
 static int sm501_gpio_get(struct gpio_chip *chip, unsigned offset)
 
 {
-	struct sm501_gpio_chip *smgpio = to_sm501_gpio(chip);
+	struct sm501_gpio_chip *smgpio = gpiochip_get_data(chip);
 	unsigned long result;
 
 	result = smc501_readl(smgpio->regbase + SM501_GPIO_DATA_LOW);
@@ -923,7 +918,7 @@ static void sm501_gpio_ensure_gpio(struct sm501_gpio_chip *smchip,
 static void sm501_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
 
 {
-	struct sm501_gpio_chip *smchip = to_sm501_gpio(chip);
+	struct sm501_gpio_chip *smchip = gpiochip_get_data(chip);
 	struct sm501_gpio *smgpio = smchip->ourgpio;
 	unsigned long bit = 1 << offset;
 	void __iomem *regs = smchip->regbase;
@@ -948,7 +943,7 @@ static void sm501_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
 
 static int sm501_gpio_input(struct gpio_chip *chip, unsigned offset)
 {
-	struct sm501_gpio_chip *smchip = to_sm501_gpio(chip);
+	struct sm501_gpio_chip *smchip = gpiochip_get_data(chip);
 	struct sm501_gpio *smgpio = smchip->ourgpio;
 	void __iomem *regs = smchip->regbase;
 	unsigned long bit = 1 << offset;
@@ -974,7 +969,7 @@ static int sm501_gpio_input(struct gpio_chip *chip, unsigned offset)
 static int sm501_gpio_output(struct gpio_chip *chip,
 			     unsigned offset, int value)
 {
-	struct sm501_gpio_chip *smchip = to_sm501_gpio(chip);
+	struct sm501_gpio_chip *smchip = gpiochip_get_data(chip);
 	struct sm501_gpio *smgpio = smchip->ourgpio;
 	unsigned long bit = 1 << offset;
 	void __iomem *regs = smchip->regbase;
@@ -1039,7 +1034,7 @@ static int sm501_gpio_register_chip(struct sm501_devdata *sm,
 	gchip->base   = base;
 	chip->ourgpio = gpio;
 
-	return gpiochip_add(gchip);
+	return gpiochip_add_data(gchip, chip);
 }
 
 static int sm501_register_gpio(struct sm501_devdata *sm)
diff --git a/drivers/mfd/smsc-ece1099.c b/drivers/mfd/smsc-ece1099.c
index a4c0df7..7f89e89 100644
--- a/drivers/mfd/smsc-ece1099.c
+++ b/drivers/mfd/smsc-ece1099.c
@@ -80,15 +80,6 @@ err:
 	return ret;
 }
 
-static int smsc_i2c_remove(struct i2c_client *i2c)
-{
-	struct smsc *smsc = i2c_get_clientdata(i2c);
-
-	mfd_remove_devices(smsc->dev);
-
-	return 0;
-}
-
 static const struct i2c_device_id smsc_i2c_id[] = {
 	{ "smscece1099", 0},
 	{},
@@ -100,7 +91,6 @@ static struct i2c_driver smsc_i2c_driver = {
 		   .name = "smsc",
 	},
 	.probe = smsc_i2c_probe,
-	.remove = smsc_i2c_remove,
 	.id_table = smsc_i2c_id,
 };
 
diff --git a/drivers/mfd/stw481x.c b/drivers/mfd/stw481x.c
index ca613df..ab949ea 100644
--- a/drivers/mfd/stw481x.c
+++ b/drivers/mfd/stw481x.c
@@ -206,8 +206,8 @@ static int stw481x_probe(struct i2c_client *client,
 		stw481x_cells[i].pdata_size = sizeof(*stw481x);
 	}
 
-	ret = mfd_add_devices(&client->dev, 0, stw481x_cells,
-			ARRAY_SIZE(stw481x_cells), NULL, 0, NULL);
+	ret = devm_mfd_add_devices(&client->dev, 0, stw481x_cells,
+				   ARRAY_SIZE(stw481x_cells), NULL, 0, NULL);
 	if (ret)
 		return ret;
 
@@ -216,12 +216,6 @@ static int stw481x_probe(struct i2c_client *client,
 	return ret;
 }
 
-static int stw481x_remove(struct i2c_client *client)
-{
-	mfd_remove_devices(&client->dev);
-	return 0;
-}
-
 /*
  * This ID table is completely unused, as this is a pure
  * device-tree probed driver, but it has to be here due to
@@ -246,7 +240,6 @@ static struct i2c_driver stw481x_driver = {
 		.of_match_table = stw481x_match,
 	},
 	.probe		= stw481x_probe,
-	.remove		= stw481x_remove,
 	.id_table	= stw481x_id,
 };
 
diff --git a/drivers/mfd/tc6393xb.c b/drivers/mfd/tc6393xb.c
index 1ecbfa4..d42d322 100644
--- a/drivers/mfd/tc6393xb.c
+++ b/drivers/mfd/tc6393xb.c
@@ -24,7 +24,7 @@
 #include <linux/mfd/core.h>
 #include <linux/mfd/tmio.h>
 #include <linux/mfd/tc6393xb.h>
-#include <linux/gpio.h>
+#include <linux/gpio/driver.h>
 #include <linux/slab.h>
 
 #define SCR_REVID	0x08		/* b Revision ID	*/
@@ -434,7 +434,7 @@ static struct mfd_cell tc6393xb_cells[] = {
 static int tc6393xb_gpio_get(struct gpio_chip *chip,
 		unsigned offset)
 {
-	struct tc6393xb *tc6393xb = container_of(chip, struct tc6393xb, gpio);
+	struct tc6393xb *tc6393xb = gpiochip_get_data(chip);
 
 	/* XXX: does dsr also represent inputs? */
 	return !!(tmio_ioread8(tc6393xb->scr + SCR_GPO_DSR(offset / 8))
@@ -444,7 +444,7 @@ static int tc6393xb_gpio_get(struct gpio_chip *chip,
 static void __tc6393xb_gpio_set(struct gpio_chip *chip,
 		unsigned offset, int value)
 {
-	struct tc6393xb *tc6393xb = container_of(chip, struct tc6393xb, gpio);
+	struct tc6393xb *tc6393xb = gpiochip_get_data(chip);
 	u8  dsr;
 
 	dsr = tmio_ioread8(tc6393xb->scr + SCR_GPO_DSR(offset / 8));
@@ -459,7 +459,7 @@ static void __tc6393xb_gpio_set(struct gpio_chip *chip,
 static void tc6393xb_gpio_set(struct gpio_chip *chip,
 		unsigned offset, int value)
 {
-	struct tc6393xb *tc6393xb = container_of(chip, struct tc6393xb, gpio);
+	struct tc6393xb *tc6393xb = gpiochip_get_data(chip);
 	unsigned long flags;
 
 	spin_lock_irqsave(&tc6393xb->lock, flags);
@@ -472,7 +472,7 @@ static void tc6393xb_gpio_set(struct gpio_chip *chip,
 static int tc6393xb_gpio_direction_input(struct gpio_chip *chip,
 			unsigned offset)
 {
-	struct tc6393xb *tc6393xb = container_of(chip, struct tc6393xb, gpio);
+	struct tc6393xb *tc6393xb = gpiochip_get_data(chip);
 	unsigned long flags;
 	u8 doecr;
 
@@ -490,7 +490,7 @@ static int tc6393xb_gpio_direction_input(struct gpio_chip *chip,
 static int tc6393xb_gpio_direction_output(struct gpio_chip *chip,
 			unsigned offset, int value)
 {
-	struct tc6393xb *tc6393xb = container_of(chip, struct tc6393xb, gpio);
+	struct tc6393xb *tc6393xb = gpiochip_get_data(chip);
 	unsigned long flags;
 	u8 doecr;
 
@@ -517,7 +517,7 @@ static int tc6393xb_register_gpio(struct tc6393xb *tc6393xb, int gpio_base)
 	tc6393xb->gpio.direction_input = tc6393xb_gpio_direction_input;
 	tc6393xb->gpio.direction_output = tc6393xb_gpio_direction_output;
 
-	return gpiochip_add(&tc6393xb->gpio);
+	return gpiochip_add_data(&tc6393xb->gpio, tc6393xb);
 }
 
 /*--------------------------------------------------------------------------*/
diff --git a/drivers/mfd/tps6105x.c b/drivers/mfd/tps6105x.c
index 51c5495..baa12ea 100644
--- a/drivers/mfd/tps6105x.c
+++ b/drivers/mfd/tps6105x.c
@@ -21,7 +21,6 @@
 #include <linux/spinlock.h>
 #include <linux/slab.h>
 #include <linux/err.h>
-#include <linux/regulator/driver.h>
 #include <linux/mfd/core.h>
 #include <linux/mfd/tps6105x.h>
 
diff --git a/drivers/mfd/tps65010.c b/drivers/mfd/tps65010.c
index 495e451..d829a61 100644
--- a/drivers/mfd/tps65010.c
+++ b/drivers/mfd/tps65010.c
@@ -34,7 +34,7 @@
 
 #include <linux/i2c/tps65010.h>
 
-#include <linux/gpio.h>
+#include <linux/gpio/driver.h>
 
 
 /*-------------------------------------------------------------------------*/
@@ -477,7 +477,7 @@ tps65010_output(struct gpio_chip *chip, unsigned offset, int value)
 	if (offset < 4) {
 		struct tps65010		*tps;
 
-		tps = container_of(chip, struct tps65010, chip);
+		tps = gpiochip_get_data(chip);
 		if (!(tps->outmask & (1 << offset)))
 			return -EINVAL;
 		tps65010_set_gpio_out_value(offset + 1, value);
@@ -494,7 +494,7 @@ static int tps65010_gpio_get(struct gpio_chip *chip, unsigned offset)
 	int			value;
 	struct tps65010		*tps;
 
-	tps = container_of(chip, struct tps65010, chip);
+	tps = gpiochip_get_data(chip);
 
 	if (offset < 4) {
 		value = i2c_smbus_read_byte_data(tps->client, TPS_DEFGPIO);
@@ -651,7 +651,7 @@ static int tps65010_probe(struct i2c_client *client,
 		tps->chip.ngpio = 7;
 		tps->chip.can_sleep = 1;
 
-		status = gpiochip_add(&tps->chip);
+		status = gpiochip_add_data(&tps->chip, tps);
 		if (status < 0)
 			dev_err(&client->dev, "can't add gpiochip, err %d\n",
 					status);
diff --git a/drivers/mfd/tps6507x.c b/drivers/mfd/tps6507x.c
index 1ab3dd6..40beb2f 100644
--- a/drivers/mfd/tps6507x.c
+++ b/drivers/mfd/tps6507x.c
@@ -100,16 +100,8 @@ static int tps6507x_i2c_probe(struct i2c_client *i2c,
 	tps6507x->read_dev = tps6507x_i2c_read_device;
 	tps6507x->write_dev = tps6507x_i2c_write_device;
 
-	return mfd_add_devices(tps6507x->dev, -1, tps6507x_devs,
-			       ARRAY_SIZE(tps6507x_devs), NULL, 0, NULL);
-}
-
-static int tps6507x_i2c_remove(struct i2c_client *i2c)
-{
-	struct tps6507x_dev *tps6507x = i2c_get_clientdata(i2c);
-
-	mfd_remove_devices(tps6507x->dev);
-	return 0;
+	return devm_mfd_add_devices(tps6507x->dev, -1, tps6507x_devs,
+				    ARRAY_SIZE(tps6507x_devs), NULL, 0, NULL);
 }
 
 static const struct i2c_device_id tps6507x_i2c_id[] = {
@@ -132,7 +124,6 @@ static struct i2c_driver tps6507x_i2c_driver = {
 		   .of_match_table = of_match_ptr(tps6507x_of_match),
 	},
 	.probe = tps6507x_i2c_probe,
-	.remove = tps6507x_i2c_remove,
 	.id_table = tps6507x_i2c_id,
 };
 
diff --git a/drivers/mfd/tps65217.c b/drivers/mfd/tps65217.c
index d32b5442..049a6fc 100644
--- a/drivers/mfd/tps65217.c
+++ b/drivers/mfd/tps65217.c
@@ -205,8 +205,8 @@ static int tps65217_probe(struct i2c_client *client,
 		return ret;
 	}
 
-	ret = mfd_add_devices(tps->dev, -1, tps65217s,
-			      ARRAY_SIZE(tps65217s), NULL, 0, NULL);
+	ret = devm_mfd_add_devices(tps->dev, -1, tps65217s,
+				   ARRAY_SIZE(tps65217s), NULL, 0, NULL);
 	if (ret < 0) {
 		dev_err(tps->dev, "mfd_add_devices failed: %d\n", ret);
 		return ret;
@@ -235,15 +235,6 @@ static int tps65217_probe(struct i2c_client *client,
 	return 0;
 }
 
-static int tps65217_remove(struct i2c_client *client)
-{
-	struct tps65217 *tps = i2c_get_clientdata(client);
-
-	mfd_remove_devices(tps->dev);
-
-	return 0;
-}
-
 static const struct i2c_device_id tps65217_id_table[] = {
 	{"tps65217", TPS65217},
 	{ /* sentinel */ }
@@ -257,7 +248,6 @@ static struct i2c_driver tps65217_driver = {
 	},
 	.id_table	= tps65217_id_table,
 	.probe		= tps65217_probe,
-	.remove		= tps65217_remove,
 };
 
 static int __init tps65217_init(void)
diff --git a/drivers/mfd/tps65910.c b/drivers/mfd/tps65910.c
index f7ab115..11cab15 100644
--- a/drivers/mfd/tps65910.c
+++ b/drivers/mfd/tps65910.c
@@ -252,9 +252,10 @@ static int tps65910_irq_init(struct tps65910 *tps65910, int irq,
 	}
 
 	tps65910->chip_irq = irq;
-	ret = regmap_add_irq_chip(tps65910->regmap, tps65910->chip_irq,
-		IRQF_ONESHOT, pdata->irq_base,
-		tps6591x_irqs_chip, &tps65910->irq_data);
+	ret = devm_regmap_add_irq_chip(tps65910->dev, tps65910->regmap,
+				       tps65910->chip_irq,
+				       IRQF_ONESHOT, pdata->irq_base,
+				       tps6591x_irqs_chip, &tps65910->irq_data);
 	if (ret < 0) {
 		dev_warn(tps65910->dev, "Failed to add irq_chip %d\n", ret);
 		tps65910->chip_irq = 0;
@@ -262,13 +263,6 @@ static int tps65910_irq_init(struct tps65910 *tps65910, int irq,
 	return ret;
 }
 
-static int tps65910_irq_exit(struct tps65910 *tps65910)
-{
-	if (tps65910->chip_irq > 0)
-		regmap_del_irq_chip(tps65910->chip_irq, tps65910->irq_data);
-	return 0;
-}
-
 static bool is_volatile_reg(struct device *dev, unsigned int reg)
 {
 	struct tps65910 *tps65910 = dev_get_drvdata(dev);
@@ -510,29 +504,18 @@ static int tps65910_i2c_probe(struct i2c_client *i2c,
 		pm_power_off = tps65910_power_off;
 	}
 
-	ret = mfd_add_devices(tps65910->dev, -1,
-			      tps65910s, ARRAY_SIZE(tps65910s),
-			      NULL, 0,
-			      regmap_irq_get_domain(tps65910->irq_data));
+	ret = devm_mfd_add_devices(tps65910->dev, -1,
+				   tps65910s, ARRAY_SIZE(tps65910s),
+				   NULL, 0,
+				   regmap_irq_get_domain(tps65910->irq_data));
 	if (ret < 0) {
 		dev_err(&i2c->dev, "mfd_add_devices failed: %d\n", ret);
-		tps65910_irq_exit(tps65910);
 		return ret;
 	}
 
 	return ret;
 }
 
-static int tps65910_i2c_remove(struct i2c_client *i2c)
-{
-	struct tps65910 *tps65910 = i2c_get_clientdata(i2c);
-
-	tps65910_irq_exit(tps65910);
-	mfd_remove_devices(tps65910->dev);
-
-	return 0;
-}
-
 static const struct i2c_device_id tps65910_i2c_id[] = {
        { "tps65910", TPS65910 },
        { "tps65911", TPS65911 },
@@ -547,7 +530,6 @@ static struct i2c_driver tps65910_i2c_driver = {
 		   .of_match_table = of_match_ptr(tps65910_of_match),
 	},
 	.probe = tps65910_i2c_probe,
-	.remove = tps65910_i2c_remove,
 	.id_table = tps65910_i2c_id,
 };
 
diff --git a/drivers/mfd/twl4030-power.c b/drivers/mfd/twl4030-power.c
index 04b5398..1beb722 100644
--- a/drivers/mfd/twl4030-power.c
+++ b/drivers/mfd/twl4030-power.c
@@ -1,5 +1,4 @@
 /*
- * linux/drivers/i2c/chips/twl4030-power.c
  *
  * Handle TWL4030 Power initialization
  *
diff --git a/drivers/mfd/twl6040.c b/drivers/mfd/twl6040.c
index 08a693c..852d587 100644
--- a/drivers/mfd/twl6040.c
+++ b/drivers/mfd/twl6040.c
@@ -291,7 +291,11 @@ int twl6040_power(struct twl6040 *twl6040, int on)
 		if (twl6040->power_count++)
 			goto out;
 
-		clk_prepare_enable(twl6040->clk32k);
+		ret = clk_prepare_enable(twl6040->clk32k);
+		if (ret) {
+			twl6040->power_count = 0;
+			goto out;
+		}
 
 		/* Allow writes to the chip */
 		regcache_cache_only(twl6040->regmap, false);
@@ -300,6 +304,7 @@ int twl6040_power(struct twl6040 *twl6040, int on)
 			/* use automatic power-up sequence */
 			ret = twl6040_power_up_automatic(twl6040);
 			if (ret) {
+				clk_disable_unprepare(twl6040->clk32k);
 				twl6040->power_count = 0;
 				goto out;
 			}
@@ -307,6 +312,7 @@ int twl6040_power(struct twl6040 *twl6040, int on)
 			/* use manual power-up sequence */
 			ret = twl6040_power_up_manual(twl6040);
 			if (ret) {
+				clk_disable_unprepare(twl6040->clk32k);
 				twl6040->power_count = 0;
 				goto out;
 			}
diff --git a/drivers/mfd/ucb1x00-core.c b/drivers/mfd/ucb1x00-core.c
index bcafe1e..9ab9ec4 100644
--- a/drivers/mfd/ucb1x00-core.c
+++ b/drivers/mfd/ucb1x00-core.c
@@ -28,7 +28,7 @@
 #include <linux/mutex.h>
 #include <linux/mfd/ucb1x00.h>
 #include <linux/pm.h>
-#include <linux/gpio.h>
+#include <linux/gpio/driver.h>
 
 static DEFINE_MUTEX(ucb1x00_mutex);
 static LIST_HEAD(ucb1x00_drivers);
@@ -109,7 +109,7 @@ unsigned int ucb1x00_io_read(struct ucb1x00 *ucb)
 
 static void ucb1x00_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
 {
-	struct ucb1x00 *ucb = container_of(chip, struct ucb1x00, gpio);
+	struct ucb1x00 *ucb = gpiochip_get_data(chip);
 	unsigned long flags;
 
 	spin_lock_irqsave(&ucb->io_lock, flags);
@@ -126,7 +126,7 @@ static void ucb1x00_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
 
 static int ucb1x00_gpio_get(struct gpio_chip *chip, unsigned offset)
 {
-	struct ucb1x00 *ucb = container_of(chip, struct ucb1x00, gpio);
+	struct ucb1x00 *ucb = gpiochip_get_data(chip);
 	unsigned val;
 
 	ucb1x00_enable(ucb);
@@ -138,7 +138,7 @@ static int ucb1x00_gpio_get(struct gpio_chip *chip, unsigned offset)
 
 static int ucb1x00_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
 {
-	struct ucb1x00 *ucb = container_of(chip, struct ucb1x00, gpio);
+	struct ucb1x00 *ucb = gpiochip_get_data(chip);
 	unsigned long flags;
 
 	spin_lock_irqsave(&ucb->io_lock, flags);
@@ -154,7 +154,7 @@ static int ucb1x00_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
 static int ucb1x00_gpio_direction_output(struct gpio_chip *chip, unsigned offset
 		, int value)
 {
-	struct ucb1x00 *ucb = container_of(chip, struct ucb1x00, gpio);
+	struct ucb1x00 *ucb = gpiochip_get_data(chip);
 	unsigned long flags;
 	unsigned old, mask = 1 << offset;
 
@@ -181,7 +181,7 @@ static int ucb1x00_gpio_direction_output(struct gpio_chip *chip, unsigned offset
 
 static int ucb1x00_to_irq(struct gpio_chip *chip, unsigned offset)
 {
-	struct ucb1x00 *ucb = container_of(chip, struct ucb1x00, gpio);
+	struct ucb1x00 *ucb = gpiochip_get_data(chip);
 
 	return ucb->irq_base > 0 ? ucb->irq_base + offset : -ENXIO;
 }
@@ -579,7 +579,7 @@ static int ucb1x00_probe(struct mcp *mcp)
 		ucb->gpio.direction_input = ucb1x00_gpio_direction_input;
 		ucb->gpio.direction_output = ucb1x00_gpio_direction_output;
 		ucb->gpio.to_irq = ucb1x00_to_irq;
-		ret = gpiochip_add(&ucb->gpio);
+		ret = gpiochip_add_data(&ucb->gpio, ucb);
 		if (ret)
 			goto err_gpio_add;
 	} else
diff --git a/drivers/mfd/vexpress-sysreg.c b/drivers/mfd/vexpress-sysreg.c
index 855c020..201a3ea2 100644
--- a/drivers/mfd/vexpress-sysreg.c
+++ b/drivers/mfd/vexpress-sysreg.c
@@ -202,7 +202,7 @@ static int vexpress_sysreg_probe(struct platform_device *pdev)
 	bgpio_init(mmc_gpio_chip, &pdev->dev, 0x4, base + SYS_MCI,
 			NULL, NULL, NULL, NULL, 0);
 	mmc_gpio_chip->ngpio = 2;
-	gpiochip_add(mmc_gpio_chip);
+	gpiochip_add_data(mmc_gpio_chip, NULL);
 
 	return mfd_add_devices(&pdev->dev, PLATFORM_DEVID_AUTO,
 			vexpress_sysreg_cells,
diff --git a/drivers/mfd/wl1273-core.c b/drivers/mfd/wl1273-core.c
index f7c52d9..7080465 100644
--- a/drivers/mfd/wl1273-core.c
+++ b/drivers/mfd/wl1273-core.c
@@ -170,15 +170,6 @@ static int wl1273_fm_set_volume(struct wl1273_core *core, unsigned int volume)
 	return 0;
 }
 
-static int wl1273_core_remove(struct i2c_client *client)
-{
-	dev_dbg(&client->dev, "%s\n", __func__);
-
-	mfd_remove_devices(&client->dev);
-
-	return 0;
-}
-
 static int wl1273_core_probe(struct i2c_client *client,
 				       const struct i2c_device_id *id)
 {
@@ -237,8 +228,8 @@ static int wl1273_core_probe(struct i2c_client *client,
 	dev_dbg(&client->dev, "%s: number of children: %d.\n",
 		__func__, children);
 
-	r = mfd_add_devices(&client->dev, -1, core->cells,
-			    children, NULL, 0, NULL);
+	r = devm_mfd_add_devices(&client->dev, -1, core->cells,
+				 children, NULL, 0, NULL);
 	if (r)
 		goto err;
 
@@ -258,7 +249,6 @@ static struct i2c_driver wl1273_core_driver = {
 	},
 	.probe = wl1273_core_probe,
 	.id_table = wl1273_driver_id_table,
-	.remove = wl1273_core_remove,
 };
 
 static int __init wl1273_core_init(void)
diff --git a/drivers/mfd/wm5110-tables.c b/drivers/mfd/wm5110-tables.c
index 8e74e71..1ee68bd 100644
--- a/drivers/mfd/wm5110-tables.c
+++ b/drivers/mfd/wm5110-tables.c
@@ -3066,6 +3066,7 @@ static bool wm5110_volatile_register(struct device *dev, unsigned int reg)
 	case ARIZONA_AOD_IRQ_RAW_STATUS:
 	case ARIZONA_FX_CTRL2:
 	case ARIZONA_ASRC_STATUS:
+	case ARIZONA_CLOCK_CONTROL:
 	case ARIZONA_DSP_STATUS:
 	case ARIZONA_DSP1_STATUS_1:
 	case ARIZONA_DSP1_STATUS_2:
diff --git a/drivers/mfd/wm8400-core.c b/drivers/mfd/wm8400-core.c
index 3bd44a4..8a98a2f 100644
--- a/drivers/mfd/wm8400-core.c
+++ b/drivers/mfd/wm8400-core.c
@@ -35,27 +35,6 @@ static bool wm8400_volatile(struct device *dev, unsigned int reg)
 	}
 }
 
-/**
- * wm8400_reg_read - Single register read
- *
- * @wm8400: Pointer to wm8400 control structure
- * @reg:    Register to read
- *
- * @return  Read value
- */
-u16 wm8400_reg_read(struct wm8400 *wm8400, u8 reg)
-{
-	unsigned int val;
-	int ret;
-
-	ret = regmap_read(wm8400->regmap, reg, &val);
-	if (ret < 0)
-		return ret;
-
-	return val;
-}
-EXPORT_SYMBOL_GPL(wm8400_reg_read);
-
 int wm8400_block_read(struct wm8400 *wm8400, u8 reg, int count, u16 *data)
 {
 	return regmap_bulk_read(wm8400->regmap, reg, data, count);
@@ -70,7 +49,7 @@ static int wm8400_register_codec(struct wm8400 *wm8400)
 		.pdata_size = sizeof(*wm8400),
 	};
 
-	return mfd_add_devices(wm8400->dev, -1, &cell, 1, NULL, 0, NULL);
+	return devm_mfd_add_devices(wm8400->dev, -1, &cell, 1, NULL, 0, NULL);
 }
 
 /*
@@ -111,7 +90,7 @@ static int wm8400_init(struct wm8400 *wm8400,
 	ret = wm8400_register_codec(wm8400);
 	if (ret != 0) {
 		dev_err(wm8400->dev, "Failed to register codec\n");
-		goto err_children;
+		return ret;
 	}
 
 	if (pdata && pdata->platform_init) {
@@ -119,21 +98,12 @@ static int wm8400_init(struct wm8400 *wm8400,
 		if (ret != 0) {
 			dev_err(wm8400->dev, "Platform init failed: %d\n",
 				ret);
-			goto err_children;
+			return ret;
 		}
 	} else
 		dev_warn(wm8400->dev, "No platform initialisation supplied\n");
 
 	return 0;
-
-err_children:
-	mfd_remove_devices(wm8400->dev);
-	return ret;
-}
-
-static void wm8400_release(struct wm8400 *wm8400)
-{
-	mfd_remove_devices(wm8400->dev);
 }
 
 static const struct regmap_config wm8400_regmap_config = {
@@ -156,7 +126,7 @@ void wm8400_reset_codec_reg_cache(struct wm8400 *wm8400)
 }
 EXPORT_SYMBOL_GPL(wm8400_reset_codec_reg_cache);
 
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+#if IS_ENABLED(CONFIG_I2C)
 static int wm8400_i2c_probe(struct i2c_client *i2c,
 			    const struct i2c_device_id *id)
 {
@@ -176,15 +146,6 @@ static int wm8400_i2c_probe(struct i2c_client *i2c,
 	return wm8400_init(wm8400, dev_get_platdata(&i2c->dev));
 }
 
-static int wm8400_i2c_remove(struct i2c_client *i2c)
-{
-	struct wm8400 *wm8400 = i2c_get_clientdata(i2c);
-
-	wm8400_release(wm8400);
-
-	return 0;
-}
-
 static const struct i2c_device_id wm8400_i2c_id[] = {
        { "wm8400", 0 },
        { }
@@ -196,7 +157,6 @@ static struct i2c_driver wm8400_i2c_driver = {
 		.name = "WM8400",
 	},
 	.probe    = wm8400_i2c_probe,
-	.remove   = wm8400_i2c_remove,
 	.id_table = wm8400_i2c_id,
 };
 #endif
@@ -205,7 +165,7 @@ static int __init wm8400_module_init(void)
 {
 	int ret = -ENODEV;
 
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+#if IS_ENABLED(CONFIG_I2C)
 	ret = i2c_add_driver(&wm8400_i2c_driver);
 	if (ret != 0)
 		pr_err("Failed to register I2C driver: %d\n", ret);
@@ -217,7 +177,7 @@ subsys_initcall(wm8400_module_init);
 
 static void __exit wm8400_module_exit(void)
 {
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+#if IS_ENABLED(CONFIG_I2C)
 	i2c_del_driver(&wm8400_i2c_driver);
 #endif
 }