Merge tag 'mfd-3.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-next

Pull MFD updates from Samuel Ortiz:
 "For the 3.13 merge window we have a couple of new drivers for the AMS
  AS3722 PMIC and for STMicroelectronics STw481x PMIC.

  Although this is a smaller update than usual, we also have:

   - Device tree support for the max77693 driver

   - linux/of.h inclusion for all DT compatible MFD drivers, to avoid
     build breakage in the future

   - Support for Intel Wildcat Point-LP PCH through the lpc_ich driver

   - A small arizona update for new wm5110 DSP registers and a few fixes

   - A small palmas update as well, including an of_device table
     addition and a few minor fixes

   - Two small mfd-core changes, one including a memory leak fix for
     when mfd_add_device() fails

   - Our usual round of minor cleanups and janitorial fixes"

* tag 'mfd-3.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-next: (63 commits)
  Documentation: mfd: Update s2mps11.txt
  mfd: pm8921: Potential NULL dereference in pm8921_remove()
  mfd: Fix memory leak in mfd_add_devices()
  mfd: Stop setting refcounting pointers in original mfd_cell arrays
  mfd: wm5110: Enable micd clamp functionality
  mfd: lpc_ich: Add Device IDs for Intel Wildcat Point-LP PCH
  mfd: max77693: Fix up bug of wrong interrupt number
  mfd: as3722: Don't export the regmap config
  mfd: twl6040: Remove obsolete cleanup for i2c clientdata
  mfd: tps65910: Remove warning during dt node parsing
  mfd: lpc_sch: Ignore resource conflicts when adding mfd cells
  mfd: ti_am335x_tscadc: Avoid possible deadlock of reg_lock
  mfd: syscon: Return -ENOSYS if CONFIG_MFD_SYSCON is not enabled
  mfd: Add support for ams AS3722 PMIC
  mfd: max77693: Include linux/of.h header
  mfd: tc3589x: Detect the precise version
  mfd: omap-usb: prepare/unprepare clock while enable/disable
  mfd: max77686: Include linux/of.h header
  mfd: max8907: Include linux/of.h header
  mfd: max8997: Include linux/of.h header
  ...

43 files changed, 994 insertions, 198 deletions

diff --git a/drivers/mfd/88pm860x-core.c b/drivers/mfd/88pm860x-core.c
index 7ebe9ef1eba6..c9b1f6422941 100644
--- a/drivers/mfd/88pm860x-core.c
+++ b/drivers/mfd/88pm860x-core.c
@@ -1247,7 +1247,7 @@ static struct i2c_driver pm860x_driver = {
                 .name   = "88PM860x",
                 .owner  = THIS_MODULE,
                 .pm     = &pm860x_pm_ops,
-                .of_match_table = of_match_ptr(pm860x_dt_ids),
+                .of_match_table = pm860x_dt_ids,
         },
         .probe          = pm860x_probe,
         .remove         = pm860x_remove,
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 914c3d142f78..b7c74a73d371 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -27,6 +27,18 @@ config MFD_AS3711
         help
           Support for the AS3711 PMIC from AMS
 
+config MFD_AS3722
+        bool "ams AS3722 Power Management IC"
+        select MFD_CORE
+        select REGMAP_I2C
+        select REGMAP_IRQ
+        depends on I2C && OF
+        help
+          The ams AS3722 is a compact system PMU suitable for mobile phones,
+          tablets etc. It has 4 DC/DC step-down regulators, 3 DC/DC step-down
+          controllers, 11 LDOs, RTC, automatic battery, temperature and
+          over current monitoring, GPIOs, ADC and a watchdog.
+
 config PMIC_ADP5520
         bool "Analog Devices ADP5520/01 MFD PMIC Core Support"
         depends on I2C=y
@@ -1151,6 +1163,16 @@ config MFD_WM8994
           core support for the WM8994, in order to use the actual
           functionaltiy of the device other drivers must be enabled.
 
+config MFD_STW481X
+        bool "Support for ST Microelectronics STw481x"
+        depends on I2C && ARCH_NOMADIK
+        select REGMAP_I2C
+        select MFD_CORE
+        help
+          Select this option to enable the STw481x chip driver used
+          in various ST Microelectronics and ST-Ericsson embedded
+          Nomadik series.
+
 endmenu
 endif
 
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 15b905c6553c..8a28dc90fe78 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -162,3 +162,5 @@ obj-$(CONFIG_MFD_LM3533)	+= lm3533-core.o lm3533-ctrlbank.o
 obj-$(CONFIG_VEXPRESS_CONFIG)   += vexpress-config.o vexpress-sysreg.o
 obj-$(CONFIG_MFD_RETU)          += retu-mfd.o
 obj-$(CONFIG_MFD_AS3711)        += as3711.o
+obj-$(CONFIG_MFD_AS3722)        += as3722.o
+obj-$(CONFIG_MFD_STW481X)       += stw481x.o
diff --git a/drivers/mfd/aat2870-core.c b/drivers/mfd/aat2870-core.c
index 6f68472e0ca6..14d9542a4eed 100644
--- a/drivers/mfd/aat2870-core.c
+++ b/drivers/mfd/aat2870-core.c
@@ -293,7 +293,7 @@ static ssize_t aat2870_reg_write_file(struct file *file,
         unsigned long addr, val;
         int ret;
 
-        buf_size = min(count, (sizeof(buf)-1));
+        buf_size = min(count, (size_t)(sizeof(buf)-1));
         if (copy_from_user(buf, user_buf, buf_size)) {
                 dev_err(aat2870->dev, "Failed to copy from user\n");
                 return -EFAULT;
diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index 022b1863d36c..75e180ceecf3 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -540,7 +540,7 @@ static int arizona_of_get_core_pdata(struct arizona *arizona)
                 for (i = 0; i < ARRAY_SIZE(arizona->pdata.gpio_defaults); i++) {
                         if (arizona->pdata.gpio_defaults[i] > 0xffff)
                                 arizona->pdata.gpio_defaults[i] = 0;
-                        if (arizona->pdata.gpio_defaults[i] == 0)
+                        else if (arizona->pdata.gpio_defaults[i] == 0)
                                 arizona->pdata.gpio_defaults[i] = 0x10000;
                 }
         } else {
@@ -633,11 +633,11 @@ int arizona_dev_init(struct arizona *arizona)
         dev_set_drvdata(arizona->dev, arizona);
         mutex_init(&arizona->clk_lock);
 
-        arizona_of_get_core_pdata(arizona);
-
         if (dev_get_platdata(arizona->dev))
                 memcpy(&arizona->pdata, dev_get_platdata(arizona->dev),
                        sizeof(arizona->pdata));
+        else
+                arizona_of_get_core_pdata(arizona);
 
         regcache_cache_only(arizona->regmap, true);
 
diff --git a/drivers/mfd/arizona-i2c.c b/drivers/mfd/arizona-i2c.c
index 51dbabf7c021..beccb790c9ba 100644
--- a/drivers/mfd/arizona-i2c.c
+++ b/drivers/mfd/arizona-i2c.c
@@ -17,6 +17,7 @@
 #include <linux/regmap.h>
 #include <linux/regulator/consumer.h>
 #include <linux/slab.h>
+#include <linux/of.h>
 
 #include <linux/mfd/arizona/core.h>
 
diff --git a/drivers/mfd/arizona-spi.c b/drivers/mfd/arizona-spi.c
index 47be7b35b5c5..1ca554b18bef 100644
--- a/drivers/mfd/arizona-spi.c
+++ b/drivers/mfd/arizona-spi.c
@@ -17,6 +17,7 @@
 #include <linux/regulator/consumer.h>
 #include <linux/slab.h>
 #include <linux/spi/spi.h>
+#include <linux/of.h>
 
 #include <linux/mfd/arizona/core.h>
 
diff --git a/drivers/mfd/as3711.c b/drivers/mfd/as3711.c
index abd3ab7c0908..ec684fcedb42 100644
--- a/drivers/mfd/as3711.c
+++ b/drivers/mfd/as3711.c
@@ -17,6 +17,7 @@
 #include <linux/mfd/as3711.h>
 #include <linux/mfd/core.h>
 #include <linux/module.h>
+#include <linux/of.h>
 #include <linux/regmap.h>
 #include <linux/slab.h>
 
diff --git a/drivers/mfd/as3722.c b/drivers/mfd/as3722.c
new file mode 100644
index 000000000000..f161f2e00df7
--- /dev/null
+++ b/drivers/mfd/as3722.c
@@ -0,0 +1,449 @@
+/*
+ * Core driver for ams AS3722 PMICs
+ *
+ * Copyright (C) 2013 AMS AG
+ * Copyright (c) 2013, NVIDIA Corporation. All rights reserved.
+ *
+ * Author: Florian Lobmaier <florian.lobmaier@ams.com>
+ * Author: Laxman Dewangan <ldewangan@nvidia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/as3722.h>
+#include <linux/of.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+
+#define AS3722_DEVICE_ID        0x0C
+
+static const struct resource as3722_rtc_resource[] = {
+        {
+                .name = "as3722-rtc-alarm",
+                .start = AS3722_IRQ_RTC_ALARM,
+                .end = AS3722_IRQ_RTC_ALARM,
+                .flags = IORESOURCE_IRQ,
+        },
+};
+
+static const struct resource as3722_adc_resource[] = {
+        {
+                .name = "as3722-adc",
+                .start = AS3722_IRQ_ADC,
+                .end = AS3722_IRQ_ADC,
+                .flags = IORESOURCE_IRQ,
+        },
+};
+
+static struct mfd_cell as3722_devs[] = {
+        {
+                .name = "as3722-pinctrl",
+        },
+        {
+                .name = "as3722-regulator",
+        },
+        {
+                .name = "as3722-rtc",
+                .num_resources = ARRAY_SIZE(as3722_rtc_resource),
+                .resources = as3722_rtc_resource,
+        },
+        {
+                .name = "as3722-adc",
+                .num_resources = ARRAY_SIZE(as3722_adc_resource),
+                .resources = as3722_adc_resource,
+        },
+        {
+                .name = "as3722-power-off",
+        },
+};
+
+static const struct regmap_irq as3722_irqs[] = {
+        /* INT1 IRQs */
+        [AS3722_IRQ_LID] = {
+                .mask = AS3722_INTERRUPT_MASK1_LID,
+        },
+        [AS3722_IRQ_ACOK] = {
+                .mask = AS3722_INTERRUPT_MASK1_ACOK,
+        },
+        [AS3722_IRQ_ENABLE1] = {
+                .mask = AS3722_INTERRUPT_MASK1_ENABLE1,
+        },
+        [AS3722_IRQ_OCCUR_ALARM_SD0] = {
+                .mask = AS3722_INTERRUPT_MASK1_OCURR_ALARM_SD0,
+        },
+        [AS3722_IRQ_ONKEY_LONG_PRESS] = {
+                .mask = AS3722_INTERRUPT_MASK1_ONKEY_LONG,
+        },
+        [AS3722_IRQ_ONKEY] = {
+                .mask = AS3722_INTERRUPT_MASK1_ONKEY,
+        },
+        [AS3722_IRQ_OVTMP] = {
+                .mask = AS3722_INTERRUPT_MASK1_OVTMP,
+        },
+        [AS3722_IRQ_LOWBAT] = {
+                .mask = AS3722_INTERRUPT_MASK1_LOWBAT,
+        },
+
+        /* INT2 IRQs */
+        [AS3722_IRQ_SD0_LV] = {
+                .mask = AS3722_INTERRUPT_MASK2_SD0_LV,
+                .reg_offset = 1,
+        },
+        [AS3722_IRQ_SD1_LV] = {
+                .mask = AS3722_INTERRUPT_MASK2_SD1_LV,
+                .reg_offset = 1,
+        },
+        [AS3722_IRQ_SD2_LV] = {
+                .mask = AS3722_INTERRUPT_MASK2_SD2345_LV,
+                .reg_offset = 1,
+        },
+        [AS3722_IRQ_PWM1_OV_PROT] = {
+                .mask = AS3722_INTERRUPT_MASK2_PWM1_OV_PROT,
+                .reg_offset = 1,
+        },
+        [AS3722_IRQ_PWM2_OV_PROT] = {
+                .mask = AS3722_INTERRUPT_MASK2_PWM2_OV_PROT,
+                .reg_offset = 1,
+        },
+        [AS3722_IRQ_ENABLE2] = {
+                .mask = AS3722_INTERRUPT_MASK2_ENABLE2,
+                .reg_offset = 1,
+        },
+        [AS3722_IRQ_SD6_LV] = {
+                .mask = AS3722_INTERRUPT_MASK2_SD6_LV,
+                .reg_offset = 1,
+        },
+        [AS3722_IRQ_RTC_REP] = {
+                .mask = AS3722_INTERRUPT_MASK2_RTC_REP,
+                .reg_offset = 1,
+        },
+
+        /* INT3 IRQs */
+        [AS3722_IRQ_RTC_ALARM] = {
+                .mask = AS3722_INTERRUPT_MASK3_RTC_ALARM,
+                .reg_offset = 2,
+        },
+        [AS3722_IRQ_GPIO1] = {
+                .mask = AS3722_INTERRUPT_MASK3_GPIO1,
+                .reg_offset = 2,
+        },
+        [AS3722_IRQ_GPIO2] = {
+                .mask = AS3722_INTERRUPT_MASK3_GPIO2,
+                .reg_offset = 2,
+        },
+        [AS3722_IRQ_GPIO3] = {
+                .mask = AS3722_INTERRUPT_MASK3_GPIO3,
+                .reg_offset = 2,
+        },
+        [AS3722_IRQ_GPIO4] = {
+                .mask = AS3722_INTERRUPT_MASK3_GPIO4,
+                .reg_offset = 2,
+        },
+        [AS3722_IRQ_GPIO5] = {
+                .mask = AS3722_INTERRUPT_MASK3_GPIO5,
+                .reg_offset = 2,
+        },
+        [AS3722_IRQ_WATCHDOG] = {
+                .mask = AS3722_INTERRUPT_MASK3_WATCHDOG,
+                .reg_offset = 2,
+        },
+        [AS3722_IRQ_ENABLE3] = {
+                .mask = AS3722_INTERRUPT_MASK3_ENABLE3,
+                .reg_offset = 2,
+        },
+
+        /* INT4 IRQs */
+        [AS3722_IRQ_TEMP_SD0_SHUTDOWN] = {
+                .mask = AS3722_INTERRUPT_MASK4_TEMP_SD0_SHUTDOWN,
+                .reg_offset = 3,
+        },
+        [AS3722_IRQ_TEMP_SD1_SHUTDOWN] = {
+                .mask = AS3722_INTERRUPT_MASK4_TEMP_SD1_SHUTDOWN,
+                .reg_offset = 3,
+        },
+        [AS3722_IRQ_TEMP_SD2_SHUTDOWN] = {
+                .mask = AS3722_INTERRUPT_MASK4_TEMP_SD6_SHUTDOWN,
+                .reg_offset = 3,
+        },
+        [AS3722_IRQ_TEMP_SD0_ALARM] = {
+                .mask = AS3722_INTERRUPT_MASK4_TEMP_SD0_ALARM,
+                .reg_offset = 3,
+        },
+        [AS3722_IRQ_TEMP_SD1_ALARM] = {
+                .mask = AS3722_INTERRUPT_MASK4_TEMP_SD1_ALARM,
+                .reg_offset = 3,
+        },
+        [AS3722_IRQ_TEMP_SD6_ALARM] = {
+                .mask = AS3722_INTERRUPT_MASK4_TEMP_SD6_ALARM,
+                .reg_offset = 3,
+        },
+        [AS3722_IRQ_OCCUR_ALARM_SD6] = {
+                .mask = AS3722_INTERRUPT_MASK4_OCCUR_ALARM_SD6,
+                .reg_offset = 3,
+        },
+        [AS3722_IRQ_ADC] = {
+                .mask = AS3722_INTERRUPT_MASK4_ADC,
+                .reg_offset = 3,
+        },
+};
+
+static const struct regmap_irq_chip as3722_irq_chip = {
+        .name = "as3722",
+        .irqs = as3722_irqs,
+        .num_irqs = ARRAY_SIZE(as3722_irqs),
+        .num_regs = 4,
+        .status_base = AS3722_INTERRUPT_STATUS1_REG,
+        .mask_base = AS3722_INTERRUPT_MASK1_REG,
+};
+
+static int as3722_check_device_id(struct as3722 *as3722)
+{
+        u32 val;
+        int ret;
+
+        /* Check that this is actually a AS3722 */
+        ret = as3722_read(as3722, AS3722_ASIC_ID1_REG, &val);
+        if (ret < 0) {
+                dev_err(as3722->dev, "ASIC_ID1 read failed: %d\n", ret);
+                return ret;
+        }
+
+        if (val != AS3722_DEVICE_ID) {
+                dev_err(as3722->dev, "Device is not AS3722, ID is 0x%x\n", val);
+                return -ENODEV;
+        }
+
+        ret = as3722_read(as3722, AS3722_ASIC_ID2_REG, &val);
+        if (ret < 0) {
+                dev_err(as3722->dev, "ASIC_ID2 read failed: %d\n", ret);
+                return ret;
+        }
+
+        dev_info(as3722->dev, "AS3722 with revision 0x%x found\n", val);
+        return 0;
+}
+
+static int as3722_configure_pullups(struct as3722 *as3722)
+{
+        int ret;
+        u32 val = 0;
+
+        if (as3722->en_intern_int_pullup)
+                val |= AS3722_INT_PULL_UP;
+        if (as3722->en_intern_i2c_pullup)
+                val |= AS3722_I2C_PULL_UP;
+
+        ret = as3722_update_bits(as3722, AS3722_IOVOLTAGE_REG,
+                        AS3722_INT_PULL_UP | AS3722_I2C_PULL_UP, val);
+        if (ret < 0)
+                dev_err(as3722->dev, "IOVOLTAGE_REG update failed: %d\n", ret);
+        return ret;
+}
+
+static const struct regmap_range as3722_readable_ranges[] = {
+        regmap_reg_range(AS3722_SD0_VOLTAGE_REG, AS3722_SD6_VOLTAGE_REG),
+        regmap_reg_range(AS3722_GPIO0_CONTROL_REG, AS3722_LDO7_VOLTAGE_REG),
+        regmap_reg_range(AS3722_LDO9_VOLTAGE_REG, AS3722_REG_SEQU_MOD3_REG),
+        regmap_reg_range(AS3722_SD_PHSW_CTRL_REG, AS3722_PWM_CONTROL_H_REG),
+        regmap_reg_range(AS3722_WATCHDOG_TIMER_REG, AS3722_WATCHDOG_TIMER_REG),
+        regmap_reg_range(AS3722_WATCHDOG_SOFTWARE_SIGNAL_REG,
+                                        AS3722_BATTERY_VOLTAGE_MONITOR2_REG),
+        regmap_reg_range(AS3722_SD_CONTROL_REG, AS3722_PWM_VCONTROL4_REG),
+        regmap_reg_range(AS3722_BB_CHARGER_REG, AS3722_SRAM_REG),
+        regmap_reg_range(AS3722_RTC_ACCESS_REG, AS3722_RTC_ACCESS_REG),
+        regmap_reg_range(AS3722_RTC_STATUS_REG, AS3722_TEMP_STATUS_REG),
+        regmap_reg_range(AS3722_ADC0_CONTROL_REG, AS3722_ADC_CONFIGURATION_REG),
+        regmap_reg_range(AS3722_ASIC_ID1_REG, AS3722_ASIC_ID2_REG),
+        regmap_reg_range(AS3722_LOCK_REG, AS3722_LOCK_REG),
+};
+
+static const struct regmap_access_table as3722_readable_table = {
+        .yes_ranges = as3722_readable_ranges,
+        .n_yes_ranges = ARRAY_SIZE(as3722_readable_ranges),
+};
+
+static const struct regmap_range as3722_writable_ranges[] = {
+        regmap_reg_range(AS3722_SD0_VOLTAGE_REG, AS3722_SD6_VOLTAGE_REG),
+        regmap_reg_range(AS3722_GPIO0_CONTROL_REG, AS3722_LDO7_VOLTAGE_REG),
+        regmap_reg_range(AS3722_LDO9_VOLTAGE_REG, AS3722_GPIO_SIGNAL_OUT_REG),
+        regmap_reg_range(AS3722_REG_SEQU_MOD1_REG, AS3722_REG_SEQU_MOD3_REG),
+        regmap_reg_range(AS3722_SD_PHSW_CTRL_REG, AS3722_PWM_CONTROL_H_REG),
+        regmap_reg_range(AS3722_WATCHDOG_TIMER_REG, AS3722_WATCHDOG_TIMER_REG),
+        regmap_reg_range(AS3722_WATCHDOG_SOFTWARE_SIGNAL_REG,
+                                        AS3722_BATTERY_VOLTAGE_MONITOR2_REG),
+        regmap_reg_range(AS3722_SD_CONTROL_REG, AS3722_PWM_VCONTROL4_REG),
+        regmap_reg_range(AS3722_BB_CHARGER_REG, AS3722_SRAM_REG),
+        regmap_reg_range(AS3722_INTERRUPT_MASK1_REG, AS3722_TEMP_STATUS_REG),
+        regmap_reg_range(AS3722_ADC0_CONTROL_REG, AS3722_ADC1_CONTROL_REG),
+        regmap_reg_range(AS3722_ADC1_THRESHOLD_HI_MSB_REG,
+                                        AS3722_ADC_CONFIGURATION_REG),
+        regmap_reg_range(AS3722_LOCK_REG, AS3722_LOCK_REG),
+};
+
+static const struct regmap_access_table as3722_writable_table = {
+        .yes_ranges = as3722_writable_ranges,
+        .n_yes_ranges = ARRAY_SIZE(as3722_writable_ranges),
+};
+
+static const struct regmap_range as3722_cacheable_ranges[] = {
+        regmap_reg_range(AS3722_SD0_VOLTAGE_REG, AS3722_LDO11_VOLTAGE_REG),
+        regmap_reg_range(AS3722_SD_CONTROL_REG, AS3722_LDOCONTROL1_REG),
+};
+
+static const struct regmap_access_table as3722_volatile_table = {
+        .no_ranges = as3722_cacheable_ranges,
+        .n_no_ranges = ARRAY_SIZE(as3722_cacheable_ranges),
+};
+
+static const struct regmap_config as3722_regmap_config = {
+        .reg_bits = 8,
+        .val_bits = 8,
+        .max_register = AS3722_MAX_REGISTER,
+        .cache_type = REGCACHE_RBTREE,
+        .rd_table = &as3722_readable_table,
+        .wr_table = &as3722_writable_table,
+        .volatile_table = &as3722_volatile_table,
+};
+
+static int as3722_i2c_of_probe(struct i2c_client *i2c,
+                        struct as3722 *as3722)
+{
+        struct device_node *np = i2c->dev.of_node;
+        struct irq_data *irq_data;
+
+        if (!np) {
+                dev_err(&i2c->dev, "Device Tree not found\n");
+                return -EINVAL;
+        }
+
+        irq_data = irq_get_irq_data(i2c->irq);
+        if (!irq_data) {
+                dev_err(&i2c->dev, "Invalid IRQ: %d\n", i2c->irq);
+                return -EINVAL;
+        }
+
+        as3722->en_intern_int_pullup = of_property_read_bool(np,
+                                        "ams,enable-internal-int-pullup");
+        as3722->en_intern_i2c_pullup = of_property_read_bool(np,
+                                        "ams,enable-internal-i2c-pullup");
+        as3722->irq_flags = irqd_get_trigger_type(irq_data);
+        dev_dbg(&i2c->dev, "IRQ flags are 0x%08lx\n", as3722->irq_flags);
+        return 0;
+}
+
+static int as3722_i2c_probe(struct i2c_client *i2c,
+                        const struct i2c_device_id *id)
+{
+        struct as3722 *as3722;
+        unsigned long irq_flags;
+        int ret;
+
+        as3722 = devm_kzalloc(&i2c->dev, sizeof(struct as3722), GFP_KERNEL);
+        if (!as3722)
+                return -ENOMEM;
+
+        as3722->dev = &i2c->dev;
+        as3722->chip_irq = i2c->irq;
+        i2c_set_clientdata(i2c, as3722);
+
+        ret = as3722_i2c_of_probe(i2c, as3722);
+        if (ret < 0)
+                return ret;
+
+        as3722->regmap = devm_regmap_init_i2c(i2c, &as3722_regmap_config);
+        if (IS_ERR(as3722->regmap)) {
+                ret = PTR_ERR(as3722->regmap);
+                dev_err(&i2c->dev, "regmap init failed: %d\n", ret);
+                return ret;
+        }
+
+        ret = as3722_check_device_id(as3722);
+        if (ret < 0)
+                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);
+        if (ret < 0) {
+                dev_err(as3722->dev, "Failed to add regmap irq: %d\n", ret);
+                return ret;
+        }
+
+        ret = as3722_configure_pullups(as3722);
+        if (ret < 0)
+                goto scrub;
+
+        ret = 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;
+        }
+
+        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 const struct of_device_id as3722_of_match[] = {
+        { .compatible = "ams,as3722", },
+        {},
+};
+MODULE_DEVICE_TABLE(of, as3722_of_match);
+
+static const struct i2c_device_id as3722_i2c_id[] = {
+        { "as3722", 0 },
+        {},
+};
+MODULE_DEVICE_TABLE(i2c, as3722_i2c_id);
+
+static struct i2c_driver as3722_i2c_driver = {
+        .driver = {
+                .name = "as3722",
+                .owner = THIS_MODULE,
+                .of_match_table = as3722_of_match,
+        },
+        .probe = as3722_i2c_probe,
+        .remove = as3722_i2c_remove,
+        .id_table = as3722_i2c_id,
+};
+
+module_i2c_driver(as3722_i2c_driver);
+
+MODULE_DESCRIPTION("I2C support for AS3722 PMICs");
+MODULE_AUTHOR("Florian Lobmaier <florian.lobmaier@ams.com>");
+MODULE_AUTHOR("Laxman Dewangan <ldewangan@nvidia.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/mfd/da9052-i2c.c b/drivers/mfd/da9052-i2c.c
index 6a9fec40d018..c319c4ef5d49 100644
--- a/drivers/mfd/da9052-i2c.c
+++ b/drivers/mfd/da9052-i2c.c
@@ -86,7 +86,11 @@ static int da9052_i2c_fix(struct da9052 *da9052, unsigned char reg)
         return 0;
 }
 
-static int da9052_i2c_enable_multiwrite(struct da9052 *da9052)
+/*
+ * According to errata item 24, multiwrite mode should be avoided
+ * in order to prevent register data corruption after power-down.
+ */
+static int da9052_i2c_disable_multiwrite(struct da9052 *da9052)
 {
         int reg_val, ret;
 
@@ -94,8 +98,8 @@ static int da9052_i2c_enable_multiwrite(struct da9052 *da9052)
         if (ret < 0)
                 return ret;
 
-        if (reg_val & DA9052_CONTROL_B_WRITEMODE) {
-                reg_val &= ~DA9052_CONTROL_B_WRITEMODE;
+        if (!(reg_val & DA9052_CONTROL_B_WRITEMODE)) {
+                reg_val |= DA9052_CONTROL_B_WRITEMODE;
                 ret = regmap_write(da9052->regmap, DA9052_CONTROL_B_REG,
                                    reg_val);
                 if (ret < 0)
@@ -154,7 +158,7 @@ static int da9052_i2c_probe(struct i2c_client *client,
                 return ret;
         }
 
-        ret = da9052_i2c_enable_multiwrite(da9052);
+        ret = da9052_i2c_disable_multiwrite(da9052);
         if (ret < 0)
                 return ret;
 
diff --git a/drivers/mfd/ezx-pcap.c b/drivers/mfd/ezx-pcap.c
index 7245b0c5b794..2ed774e7d342 100644
--- a/drivers/mfd/ezx-pcap.c
+++ b/drivers/mfd/ezx-pcap.c
@@ -394,16 +394,12 @@ static int pcap_add_subdev(struct pcap_chip *pcap,
 static int ezx_pcap_remove(struct spi_device *spi)
 {
         struct pcap_chip *pcap = spi_get_drvdata(spi);
-        struct pcap_platform_data *pdata = dev_get_platdata(&spi->dev);
-        int i, adc_irq;
+        int i;
 
         /* remove all registered subdevs */
         device_for_each_child(&spi->dev, NULL, pcap_remove_subdev);
 
         /* cleanup ADC */
-        adc_irq = pcap_to_irq(pcap, (pdata->config & PCAP_SECOND_PORT) ?
-                                PCAP_IRQ_ADCDONE2 : PCAP_IRQ_ADCDONE);
-        devm_free_irq(&spi->dev, adc_irq, pcap);
         mutex_lock(&pcap->adc_mutex);
         for (i = 0; i < PCAP_ADC_MAXQ; i++)
                 kfree(pcap->adc_queue[i]);
@@ -509,8 +505,6 @@ static int ezx_pcap_probe(struct spi_device *spi)
 
 remove_subdevs:
         device_for_each_child(&spi->dev, NULL, pcap_remove_subdev);
-/* free_adc: */
-        devm_free_irq(&spi->dev, adc_irq, pcap);
 free_irqchip:
         for (i = pcap->irq_base; i < (pcap->irq_base + PCAP_NIRQS); i++)
                 irq_set_chip_and_handler(i, NULL, NULL);
diff --git a/drivers/mfd/lpc_ich.c b/drivers/mfd/lpc_ich.c
index 9483bc8472a5..da1c6566d93d 100644
--- a/drivers/mfd/lpc_ich.c
+++ b/drivers/mfd/lpc_ich.c
@@ -53,6 +53,7 @@
  *      document number TBD : Wellsburg
  *      document number TBD : Avoton SoC
  *      document number TBD : Coleto Creek
+ *      document number TBD : Wildcat Point-LP
  */
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
@@ -211,6 +212,7 @@ enum lpc_chipsets {
         LPC_WBG,        /* Wellsburg */
         LPC_AVN,        /* Avoton SoC */
         LPC_COLETO,     /* Coleto Creek */
+        LPC_WPT_LP,     /* Wildcat Point-LP */
 };
 
 static struct lpc_ich_info lpc_chipset_info[] = {
@@ -503,6 +505,10 @@ static struct lpc_ich_info lpc_chipset_info[] = {
                 .name = "Coleto Creek",
                 .iTCO_version = 2,
         },
+        [LPC_WPT_LP] = {
+                .name = "Lynx Point_LP",
+                .iTCO_version = 2,
+        },
 };
 
 /*
@@ -721,6 +727,13 @@ static DEFINE_PCI_DEVICE_TABLE(lpc_ich_ids) = {
         { PCI_VDEVICE(INTEL, 0x1f3a), LPC_AVN},
         { PCI_VDEVICE(INTEL, 0x1f3b), LPC_AVN},
         { PCI_VDEVICE(INTEL, 0x2390), LPC_COLETO},
+        { PCI_VDEVICE(INTEL, 0x9cc1), LPC_WPT_LP},
+        { PCI_VDEVICE(INTEL, 0x9cc2), LPC_WPT_LP},
+        { PCI_VDEVICE(INTEL, 0x9cc3), LPC_WPT_LP},
+        { PCI_VDEVICE(INTEL, 0x9cc5), LPC_WPT_LP},
+        { PCI_VDEVICE(INTEL, 0x9cc6), LPC_WPT_LP},
+        { PCI_VDEVICE(INTEL, 0x9cc7), LPC_WPT_LP},
+        { PCI_VDEVICE(INTEL, 0x9cc9), LPC_WPT_LP},
         { 0, },                 /* End of list */
 };
 MODULE_DEVICE_TABLE(pci, lpc_ich_ids);
@@ -969,7 +982,6 @@ static int lpc_ich_probe(struct pci_dev *dev,
         if (!cell_added) {
                 dev_warn(&dev->dev, "No MFD cells added\n");
                 lpc_ich_restore_config_space(dev);
-                pci_set_drvdata(dev, NULL);
                 return -ENODEV;
         }
 
@@ -980,7 +992,6 @@ static void lpc_ich_remove(struct pci_dev *dev)
 {
         mfd_remove_devices(&dev->dev);
         lpc_ich_restore_config_space(dev);
-        pci_set_drvdata(dev, NULL);
 }
 
 static struct pci_driver lpc_ich_driver = {
diff --git a/drivers/mfd/lpc_sch.c b/drivers/mfd/lpc_sch.c
index 8cc6aac27cb2..fbfbf0b7f97a 100644
--- a/drivers/mfd/lpc_sch.c
+++ b/drivers/mfd/lpc_sch.c
@@ -59,18 +59,21 @@ static struct mfd_cell isch_smbus_cell = {
         .name = "isch_smbus",
         .num_resources = 1,
         .resources = &smbus_sch_resource,
+        .ignore_resource_conflicts = true,
 };
 
 static struct mfd_cell sch_gpio_cell = {
         .name = "sch_gpio",
         .num_resources = 1,
         .resources = &gpio_sch_resource,
+        .ignore_resource_conflicts = true,
 };
 
 static struct mfd_cell wdt_sch_cell = {
         .name = "ie6xx_wdt",
         .num_resources = 1,
         .resources = &wdt_sch_resource,
+        .ignore_resource_conflicts = true,
 };
 
 static DEFINE_PCI_DEVICE_TABLE(lpc_sch_ids) = {
diff --git a/drivers/mfd/max77686.c b/drivers/mfd/max77686.c
index 522be67b2e68..34520cbe8afb 100644
--- a/drivers/mfd/max77686.c
+++ b/drivers/mfd/max77686.c
@@ -31,6 +31,7 @@
 #include <linux/mfd/max77686.h>
 #include <linux/mfd/max77686-private.h>
 #include <linux/err.h>
+#include <linux/of.h>
 
 #define I2C_ADDR_RTC    (0x0C >> 1)
 
diff --git a/drivers/mfd/max77693-irq.c b/drivers/mfd/max77693-irq.c
index 1029d018c739..66b58fe77094 100644
--- a/drivers/mfd/max77693-irq.c
+++ b/drivers/mfd/max77693-irq.c
@@ -128,7 +128,8 @@ static void max77693_irq_sync_unlock(struct irq_data *data)
 static const inline struct max77693_irq_data *
 irq_to_max77693_irq(struct max77693_dev *max77693, int irq)
 {
-        return &max77693_irqs[irq];
+        struct irq_data *data = irq_get_irq_data(irq);
+        return &max77693_irqs[data->hwirq];
 }
 
 static void max77693_irq_mask(struct irq_data *data)
diff --git a/drivers/mfd/max77693.c b/drivers/mfd/max77693.c
index c04723efc707..9f92463f4f7e 100644
--- a/drivers/mfd/max77693.c
+++ b/drivers/mfd/max77693.c
@@ -28,6 +28,7 @@
 #include <linux/i2c.h>
 #include <linux/err.h>
 #include <linux/interrupt.h>
+#include <linux/of.h>
 #include <linux/pm_runtime.h>
 #include <linux/mutex.h>
 #include <linux/mfd/core.h>
@@ -110,15 +111,9 @@ static int max77693_i2c_probe(struct i2c_client *i2c,
                               const struct i2c_device_id *id)
 {
         struct max77693_dev *max77693;
-        struct max77693_platform_data *pdata = dev_get_platdata(&i2c->dev);
         u8 reg_data;
         int ret = 0;
 
-        if (!pdata) {
-                dev_err(&i2c->dev, "No platform data found.\n");
-                return -EINVAL;
-        }
-
         max77693 = devm_kzalloc(&i2c->dev,
                         sizeof(struct max77693_dev), GFP_KERNEL);
         if (max77693 == NULL)
@@ -138,8 +133,6 @@ static int max77693_i2c_probe(struct i2c_client *i2c,
                 return ret;
         }
 
-        max77693->wakeup = pdata->wakeup;
-
         ret = max77693_read_reg(max77693->regmap, MAX77693_PMIC_REG_PMIC_ID2,
                                 &reg_data);
         if (ret < 0) {
@@ -179,8 +172,6 @@ static int max77693_i2c_probe(struct i2c_client *i2c,
         if (ret < 0)
                 goto err_mfd;
 
-        device_init_wakeup(max77693->dev, pdata->wakeup);
-
         return ret;
 
 err_mfd:
@@ -235,11 +226,19 @@ static const struct dev_pm_ops max77693_pm = {
         .resume = max77693_resume,
 };
 
+#ifdef CONFIG_OF
+static struct of_device_id max77693_dt_match[] = {
+        { .compatible = "maxim,max77693" },
+        {},
+};
+#endif
+
 static struct i2c_driver max77693_i2c_driver = {
         .driver = {
                    .name = "max77693",
                    .owner = THIS_MODULE,
                    .pm = &max77693_pm,
+                   .of_match_table = of_match_ptr(max77693_dt_match),
         },
         .probe = max77693_i2c_probe,
         .remove = max77693_i2c_remove,
diff --git a/drivers/mfd/max8907.c b/drivers/mfd/max8907.c
index e9b1c93a3ade..3bbfedc07f41 100644
--- a/drivers/mfd/max8907.c
+++ b/drivers/mfd/max8907.c
@@ -17,6 +17,7 @@
 #include <linux/mfd/core.h>
 #include <linux/mfd/max8907.h>
 #include <linux/module.h>
+#include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/regmap.h>
 #include <linux/slab.h>
diff --git a/drivers/mfd/max8925-i2c.c b/drivers/mfd/max8925-i2c.c
index de7fb80a6052..176aa26fc787 100644
--- a/drivers/mfd/max8925-i2c.c
+++ b/drivers/mfd/max8925-i2c.c
@@ -238,7 +238,7 @@ static struct i2c_driver max8925_driver = {
                 .name   = "max8925",
                 .owner  = THIS_MODULE,
                 .pm     = &max8925_pm_ops,
-                .of_match_table = of_match_ptr(max8925_dt_ids),
+                .of_match_table = max8925_dt_ids,
         },
         .probe          = max8925_probe,
         .remove         = max8925_remove,
diff --git a/drivers/mfd/max8997.c b/drivers/mfd/max8997.c
index cee098c0dae3..791aea3e96ce 100644
--- a/drivers/mfd/max8997.c
+++ b/drivers/mfd/max8997.c
@@ -24,6 +24,7 @@
 #include <linux/err.h>
 #include <linux/slab.h>
 #include <linux/i2c.h>
+#include <linux/of.h>
 #include <linux/of_irq.h>
 #include <linux/interrupt.h>
 #include <linux/pm_runtime.h>
diff --git a/drivers/mfd/mc13xxx-i2c.c b/drivers/mfd/mc13xxx-i2c.c
index f745e27ee874..898bd335cd8e 100644
--- a/drivers/mfd/mc13xxx-i2c.c
+++ b/drivers/mfd/mc13xxx-i2c.c
@@ -78,7 +78,6 @@ static int mc13xxx_i2c_probe(struct i2c_client *client,
                 ret = PTR_ERR(mc13xxx->regmap);
                 dev_err(mc13xxx->dev, "Failed to initialize register map: %d\n",
                                 ret);
-                dev_set_drvdata(&client->dev, NULL);
                 return ret;
         }
 
diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c
index adc8ea36e7c4..267649244737 100644
--- a/drivers/mfd/mfd-core.c
+++ b/drivers/mfd/mfd-core.c
@@ -64,7 +64,8 @@ int mfd_cell_disable(struct platform_device *pdev)
 EXPORT_SYMBOL(mfd_cell_disable);
 
 static int mfd_platform_add_cell(struct platform_device *pdev,
-                                 const struct mfd_cell *cell)
+                                 const struct mfd_cell *cell,
+                                 atomic_t *usage_count)
 {
         if (!cell)
                 return 0;
@@ -73,11 +74,12 @@ static int mfd_platform_add_cell(struct platform_device *pdev,
         if (!pdev->mfd_cell)
                 return -ENOMEM;
 
+        pdev->mfd_cell->usage_count = usage_count;
         return 0;
 }
 
 static int mfd_add_device(struct device *parent, int id,
-                          const struct mfd_cell *cell,
+                          const struct mfd_cell *cell, atomic_t *usage_count,
                           struct resource *mem_base,
                           int irq_base, struct irq_domain *domain)
 {
@@ -123,7 +125,7 @@ static int mfd_add_device(struct device *parent, int id,
                         goto fail_alias;
         }
 
-        ret = mfd_platform_add_cell(pdev, cell);
+        ret = mfd_platform_add_cell(pdev, cell, usage_count);
         if (ret)
                 goto fail_alias;
 
@@ -192,12 +194,12 @@ fail_alloc:
 }
 
 int mfd_add_devices(struct device *parent, int id,
-                    struct mfd_cell *cells, int n_devs,
+                    const struct mfd_cell *cells, int n_devs,
                     struct resource *mem_base,
                     int irq_base, struct irq_domain *domain)
 {
         int i;
-        int ret = 0;
+        int ret;
         atomic_t *cnts;
 
         /* initialize reference counting for all cells */
@@ -207,16 +209,19 @@ int mfd_add_devices(struct device *parent, int id,
 
         for (i = 0; i < n_devs; i++) {
                 atomic_set(&cnts[i], 0);
-                cells[i].usage_count = &cnts[i];
-                ret = mfd_add_device(parent, id, cells + i, mem_base,
+                ret = mfd_add_device(parent, id, cells + i, cnts + i, mem_base,
                                      irq_base, domain);
                 if (ret)
-                        break;
+                        goto fail;
         }
 
-        if (ret)
-                mfd_remove_devices(parent);
+        return 0;
 
+fail:
+        if (i)
+                mfd_remove_devices(parent);
+        else
+                kfree(cnts);
         return ret;
 }
 EXPORT_SYMBOL(mfd_add_devices);
@@ -271,8 +276,8 @@ int mfd_clone_cell(const char *cell, const char **clones, size_t n_clones)
         for (i = 0; i < n_clones; i++) {
                 cell_entry.name = clones[i];
                 /* don't give up if a single call fails; just report error */
-                if (mfd_add_device(pdev->dev.parent, -1, &cell_entry, NULL, 0,
-                                   NULL))
+                if (mfd_add_device(pdev->dev.parent, -1, &cell_entry,
+                                   cell_entry.usage_count, NULL, 0, NULL))
                         dev_err(dev, "failed to create platform device '%s'\n",
                                         clones[i]);
         }
diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c
index 29ee54d68512..142650fdc058 100644
--- a/drivers/mfd/omap-usb-host.c
+++ b/drivers/mfd/omap-usb-host.c
@@ -328,13 +328,13 @@ static int usbhs_runtime_resume(struct device *dev)
         omap_tll_enable(pdata);
 
         if (!IS_ERR(omap->ehci_logic_fck))
-                clk_enable(omap->ehci_logic_fck);
+                clk_prepare_enable(omap->ehci_logic_fck);
 
         for (i = 0; i < omap->nports; i++) {
                 switch (pdata->port_mode[i]) {
                 case OMAP_EHCI_PORT_MODE_HSIC:
                         if (!IS_ERR(omap->hsic60m_clk[i])) {
-                                r = clk_enable(omap->hsic60m_clk[i]);
+                                r = clk_prepare_enable(omap->hsic60m_clk[i]);
                                 if (r) {
                                         dev_err(dev,
                                          "Can't enable port %d hsic60m clk:%d\n",
@@ -343,7 +343,7 @@ static int usbhs_runtime_resume(struct device *dev)
                         }
 
                         if (!IS_ERR(omap->hsic480m_clk[i])) {
-                                r = clk_enable(omap->hsic480m_clk[i]);
+                                r = clk_prepare_enable(omap->hsic480m_clk[i]);
                                 if (r) {
                                         dev_err(dev,
                                          "Can't enable port %d hsic480m clk:%d\n",
@@ -354,7 +354,7 @@ static int usbhs_runtime_resume(struct device *dev)
 
                 case OMAP_EHCI_PORT_MODE_TLL:
                         if (!IS_ERR(omap->utmi_clk[i])) {
-                                r = clk_enable(omap->utmi_clk[i]);
+                                r = clk_prepare_enable(omap->utmi_clk[i]);
                                 if (r) {
                                         dev_err(dev,
                                          "Can't enable port %d clk : %d\n",
@@ -382,15 +382,15 @@ static int usbhs_runtime_suspend(struct device *dev)
                 switch (pdata->port_mode[i]) {
                 case OMAP_EHCI_PORT_MODE_HSIC:
                         if (!IS_ERR(omap->hsic60m_clk[i]))
-                                clk_disable(omap->hsic60m_clk[i]);
+                                clk_disable_unprepare(omap->hsic60m_clk[i]);
 
                         if (!IS_ERR(omap->hsic480m_clk[i]))
-                                clk_disable(omap->hsic480m_clk[i]);
+                                clk_disable_unprepare(omap->hsic480m_clk[i]);
                 /* Fall through as utmi_clks were used in HSIC mode */
 
                 case OMAP_EHCI_PORT_MODE_TLL:
                         if (!IS_ERR(omap->utmi_clk[i]))
-                                clk_disable(omap->utmi_clk[i]);
+                                clk_disable_unprepare(omap->utmi_clk[i]);
                         break;
                 default:
                         break;
@@ -398,7 +398,7 @@ static int usbhs_runtime_suspend(struct device *dev)
         }
 
         if (!IS_ERR(omap->ehci_logic_fck))
-                clk_disable(omap->ehci_logic_fck);
+                clk_disable_unprepare(omap->ehci_logic_fck);
 
         omap_tll_disable(pdata);
 
@@ -893,7 +893,7 @@ static struct platform_driver usbhs_omap_driver = {
                 .name           = (char *)usbhs_driver_name,
                 .owner          = THIS_MODULE,
                 .pm             = &usbhsomap_dev_pm_ops,
-                .of_match_table = of_match_ptr(usbhs_omap_dt_ids),
+                .of_match_table = usbhs_omap_dt_ids,
         },
         .remove         = usbhs_omap_remove,
 };
diff --git a/drivers/mfd/omap-usb-tll.c b/drivers/mfd/omap-usb-tll.c
index e59ac4cbac96..0d946ae14453 100644
--- a/drivers/mfd/omap-usb-tll.c
+++ b/drivers/mfd/omap-usb-tll.c
@@ -320,7 +320,7 @@ static struct platform_driver usbtll_omap_driver = {
         .driver = {
                 .name           = (char *)usbtll_driver_name,
                 .owner          = THIS_MODULE,
-                .of_match_table = of_match_ptr(usbtll_omap_dt_ids),
+                .of_match_table = usbtll_omap_dt_ids,
         },
         .probe          = usbtll_omap_probe,
         .remove         = usbtll_omap_remove,
@@ -429,7 +429,7 @@ int omap_tll_enable(struct usbhs_omap_platform_data *pdata)
                         if (IS_ERR(tll->ch_clk[i]))
                                 continue;
 
-                        r = clk_enable(tll->ch_clk[i]);
+                        r = clk_prepare_enable(tll->ch_clk[i]);
                         if (r) {
                                 dev_err(tll_dev,
                                  "Error enabling ch %d clock: %d\n", i, r);
@@ -460,7 +460,7 @@ 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(tll->ch_clk[i]);
+                                clk_disable_unprepare(tll->ch_clk[i]);
                 }
         }
 
diff --git a/drivers/mfd/palmas.c b/drivers/mfd/palmas.c
index 135afabe4ae2..d280d789e55a 100644
--- a/drivers/mfd/palmas.c
+++ b/drivers/mfd/palmas.c
@@ -368,6 +368,7 @@ static const struct of_device_id of_palmas_match_tbl[] = {
         },
         { },
 };
+MODULE_DEVICE_TABLE(of, of_palmas_match_tbl);
 
 static int palmas_i2c_probe(struct i2c_client *i2c,
                             const struct i2c_device_id *id)
@@ -402,7 +403,7 @@ static int palmas_i2c_probe(struct i2c_client *i2c,
         palmas->dev = &i2c->dev;
         palmas->irq = i2c->irq;
 
-        match = of_match_device(of_match_ptr(of_palmas_match_tbl), &i2c->dev);
+        match = of_match_device(of_palmas_match_tbl, &i2c->dev);
 
         if (!match)
                 return -ENODATA;
@@ -421,7 +422,7 @@ static int palmas_i2c_probe(struct i2c_client *i2c,
                                 dev_err(palmas->dev,
                                         "can't attach client %d\n", i);
                                 ret = -ENOMEM;
-                                goto err;
+                                goto err_i2c;
                         }
                         palmas->i2c_clients[i]->dev.of_node = of_node_get(node);
                 }
@@ -432,7 +433,7 @@ static int palmas_i2c_probe(struct i2c_client *i2c,
                         dev_err(palmas->dev,
                                 "Failed to allocate regmap %d, err: %d\n",
                                 i, ret);
-                        goto err;
+                        goto err_i2c;
                 }
         }
 
@@ -451,7 +452,7 @@ static int palmas_i2c_probe(struct i2c_client *i2c,
                         reg);
         if (ret < 0) {
                 dev_err(palmas->dev, "POLARITY_CTRL updat failed: %d\n", ret);
-                goto err;
+                goto err_i2c;
         }
 
         /* Change IRQ into clear on read mode for efficiency */
@@ -465,7 +466,7 @@ static int palmas_i2c_probe(struct i2c_client *i2c,
                         IRQF_ONESHOT | pdata->irq_flags, 0, &palmas_irq_chip,
                         &palmas->irq_data);
         if (ret < 0)
-                goto err;
+                goto err_i2c;
 
 no_irq:
         slave = PALMAS_BASE_TO_SLAVE(PALMAS_PU_PD_OD_BASE);
@@ -551,7 +552,6 @@ no_irq:
                 } else if (pdata->pm_off && !pm_power_off) {
                         palmas_dev = palmas;
                         pm_power_off = palmas_power_off;
-                        return ret;
                 }
         }
 
@@ -559,17 +559,31 @@ no_irq:
 
 err_irq:
         regmap_del_irq_chip(palmas->irq, palmas->irq_data);
-err:
+err_i2c:
+        for (i = 1; i < PALMAS_NUM_CLIENTS; i++) {
+                if (palmas->i2c_clients[i])
+                        i2c_unregister_device(palmas->i2c_clients[i]);
+        }
         return ret;
 }
 
 static int palmas_i2c_remove(struct i2c_client *i2c)
 {
         struct palmas *palmas = i2c_get_clientdata(i2c);
+        int i;
 
-        mfd_remove_devices(palmas->dev);
         regmap_del_irq_chip(palmas->irq, palmas->irq_data);
 
+        for (i = 1; i < PALMAS_NUM_CLIENTS; i++) {
+                if (palmas->i2c_clients[i])
+                        i2c_unregister_device(palmas->i2c_clients[i]);
+        }
+
+        if (palmas == palmas_dev) {
+                pm_power_off = NULL;
+                palmas_dev = NULL;
+        }
+
         return 0;
 }
 
diff --git a/drivers/mfd/pm8921-core.c b/drivers/mfd/pm8921-core.c
index a6841f77aa5e..484fe66e6c88 100644
--- a/drivers/mfd/pm8921-core.c
+++ b/drivers/mfd/pm8921-core.c
@@ -171,11 +171,12 @@ static int pm8921_remove(struct platform_device *pdev)
         drvdata = platform_get_drvdata(pdev);
         if (drvdata)
                 pmic = drvdata->pm_chip_data;
-        if (pmic)
+        if (pmic) {
                 mfd_remove_devices(pmic->dev);
-        if (pmic->irq_chip) {
-                pm8xxx_irq_exit(pmic->irq_chip);
-                pmic->irq_chip = NULL;
+                if (pmic->irq_chip) {
+                        pm8xxx_irq_exit(pmic->irq_chip);
+                        pmic->irq_chip = NULL;
+                }
         }
 
         return 0;
diff --git a/drivers/mfd/rts5249.c b/drivers/mfd/rts5249.c
index 3b835f593e35..573de7bfcced 100644
--- a/drivers/mfd/rts5249.c
+++ b/drivers/mfd/rts5249.c
@@ -130,13 +130,57 @@ static int rts5249_optimize_phy(struct rtsx_pcr *pcr)
 {
         int err;
 
-        err = rtsx_pci_write_phy_register(pcr, PHY_REG_REV, 0xFE46);
+        err = rtsx_pci_write_phy_register(pcr, PHY_REG_REV,
+                        PHY_REG_REV_RESV | PHY_REG_REV_RXIDLE_LATCHED |
+                        PHY_REG_REV_P1_EN | PHY_REG_REV_RXIDLE_EN |
+                        PHY_REG_REV_RX_PWST | PHY_REG_REV_CLKREQ_DLY_TIMER_1_0 |
+                        PHY_REG_REV_STOP_CLKRD | PHY_REG_REV_STOP_CLKWR);
         if (err < 0)
                 return err;
 
         msleep(1);
 
-        return rtsx_pci_write_phy_register(pcr, PHY_BPCR, 0x05C0);
+        err = rtsx_pci_write_phy_register(pcr, PHY_BPCR,
+                        PHY_BPCR_IBRXSEL | PHY_BPCR_IBTXSEL |
+                        PHY_BPCR_IB_FILTER | PHY_BPCR_CMIRROR_EN);
+        if (err < 0)
+                return err;
+        err = rtsx_pci_write_phy_register(pcr, PHY_PCR,
+                        PHY_PCR_FORCE_CODE | PHY_PCR_OOBS_CALI_50 |
+                        PHY_PCR_OOBS_VCM_08 | PHY_PCR_OOBS_SEN_90 |
+                        PHY_PCR_RSSI_EN);
+        if (err < 0)
+                return err;
+        err = rtsx_pci_write_phy_register(pcr, PHY_RCR2,
+                        PHY_RCR2_EMPHASE_EN | PHY_RCR2_NADJR |
+                        PHY_RCR2_CDR_CP_10 | PHY_RCR2_CDR_SR_2 |
+                        PHY_RCR2_FREQSEL_12 | PHY_RCR2_CPADJEN |
+                        PHY_RCR2_CDR_SC_8 | PHY_RCR2_CALIB_LATE);
+        if (err < 0)
+                return err;
+        err = rtsx_pci_write_phy_register(pcr, PHY_FLD4,
+                        PHY_FLD4_FLDEN_SEL | PHY_FLD4_REQ_REF |
+                        PHY_FLD4_RXAMP_OFF | PHY_FLD4_REQ_ADDA |
+                        PHY_FLD4_BER_COUNT | PHY_FLD4_BER_TIMER |
+                        PHY_FLD4_BER_CHK_EN);
+        if (err < 0)
+                return err;
+        err = rtsx_pci_write_phy_register(pcr, PHY_RDR, PHY_RDR_RXDSEL_1_9);
+        if (err < 0)
+                return err;
+        err = rtsx_pci_write_phy_register(pcr, PHY_RCR1,
+                        PHY_RCR1_ADP_TIME | PHY_RCR1_VCO_COARSE);
+        if (err < 0)
+                return err;
+        err = rtsx_pci_write_phy_register(pcr, PHY_FLD3,
+                        PHY_FLD3_TIMER_4 | PHY_FLD3_TIMER_6 |
+                        PHY_FLD3_RXDELINK);
+        if (err < 0)
+                return err;
+        return rtsx_pci_write_phy_register(pcr, PHY_TUNE,
+                        PHY_TUNE_TUNEREF_1_0 | PHY_TUNE_VBGSEL_1252 |
+                        PHY_TUNE_SDBUS_33 | PHY_TUNE_TUNED18 |
+                        PHY_TUNE_TUNED12);
 }
 
 static int rts5249_turn_on_led(struct rtsx_pcr *pcr)
diff --git a/drivers/mfd/rtsx_pcr.c b/drivers/mfd/rtsx_pcr.c
index e6ae7720f9e1..11e20afbdcac 100644
--- a/drivers/mfd/rtsx_pcr.c
+++ b/drivers/mfd/rtsx_pcr.c
@@ -1149,7 +1149,7 @@ static int rtsx_pci_probe(struct pci_dev *pcidev,
         pcr->remap_addr = ioremap_nocache(base, len);
         if (!pcr->remap_addr) {
                 ret = -ENOMEM;
-                goto free_host;
+                goto free_handle;
         }
 
         pcr->rtsx_resv_buf = dma_alloc_coherent(&(pcidev->dev),
@@ -1209,8 +1209,6 @@ disable_msi:
                         pcr->rtsx_resv_buf, pcr->rtsx_resv_buf_addr);
 unmap:
         iounmap(pcr->remap_addr);
-free_host:
-        dev_set_drvdata(&pcidev->dev, NULL);
 free_handle:
         kfree(handle);
 free_pcr:
@@ -1242,7 +1240,6 @@ static void rtsx_pci_remove(struct pci_dev *pcidev)
                 pci_disable_msi(pcr->pci);
         iounmap(pcr->remap_addr);
 
-        dev_set_drvdata(&pcidev->dev, NULL);
         pci_release_regions(pcidev);
         pci_disable_device(pcidev);
 
diff --git a/drivers/mfd/sec-core.c b/drivers/mfd/sec-core.c
index f530e4b73f19..34c18fb8c089 100644
--- a/drivers/mfd/sec-core.c
+++ b/drivers/mfd/sec-core.c
@@ -17,6 +17,7 @@
 #include <linux/err.h>
 #include <linux/slab.h>
 #include <linux/i2c.h>
+#include <linux/of.h>
 #include <linux/of_irq.h>
 #include <linux/interrupt.h>
 #include <linux/pm_runtime.h>
diff --git a/drivers/mfd/sm501.c b/drivers/mfd/sm501.c
index 33f040c558d0..c2c8c91c6c7b 100644
--- a/drivers/mfd/sm501.c
+++ b/drivers/mfd/sm501.c
@@ -1232,7 +1232,7 @@ static ssize_t sm501_dbg_regs(struct device *dev,
 }
 
 
-static DEVICE_ATTR(dbg_regs, 0666, sm501_dbg_regs, NULL);
+static DEVICE_ATTR(dbg_regs, 0444, sm501_dbg_regs, NULL);
 
 /* sm501_init_reg
  *
@@ -1660,7 +1660,6 @@ static int sm501_pci_probe(struct pci_dev *dev,
  err3:
         pci_disable_device(dev);
  err2:
-        pci_set_drvdata(dev, NULL);
         kfree(sm);
  err1:
         return err;
@@ -1695,7 +1694,6 @@ static void sm501_pci_remove(struct pci_dev *dev)
         release_resource(sm->regs_claim);
         kfree(sm->regs_claim);
 
-        pci_set_drvdata(dev, NULL);
         pci_disable_device(dev);
 }
 
diff --git a/drivers/mfd/stw481x.c b/drivers/mfd/stw481x.c
new file mode 100644
index 000000000000..1243d5c6a448
--- /dev/null
+++ b/drivers/mfd/stw481x.c
@@ -0,0 +1,250 @@
+/*
+ * Core driver for STw4810/STw4811
+ *
+ * Copyright (C) 2013 ST-Ericsson SA
+ * Written on behalf of Linaro for ST-Ericsson
+ *
+ * Author: Linus Walleij <linus.walleij@linaro.org>
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ */
+
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/stw481x.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+#include <linux/spinlock.h>
+#include <linux/slab.h>
+
+/*
+ * This driver can only access the non-USB portions of STw4811, the register
+ * range 0x00-0x10 dealing with USB is bound to the two special I2C pins used
+ * for USB control.
+ */
+
+/* Registers inside the power control address space */
+#define STW_PC_VCORE_SEL        0x05U
+#define STW_PC_VAUX_SEL         0x06U
+#define STW_PC_VPLL_SEL         0x07U
+
+/**
+ * stw481x_get_pctl_reg() - get a power control register
+ * @stw481x: handle to the stw481x chip
+ * @reg: power control register to fetch
+ *
+ * The power control registers is a set of one-time-programmable registers
+ * in its own register space, accessed by writing addess bits to these
+ * two registers: bits 7,6,5 of PCTL_REG_LO corresponds to the 3 LSBs of
+ * the address and bits 8,9 of PCTL_REG_HI corresponds to the 2 MSBs of
+ * the address, forming an address space of 5 bits, i.e. 32 registers
+ * 0x00 ... 0x1f can be obtained.
+ */
+static int stw481x_get_pctl_reg(struct stw481x *stw481x, u8 reg)
+{
+        u8 msb = (reg >> 3) & 0x03;
+        u8 lsb = (reg << 5) & 0xe0;
+        unsigned int val;
+        u8 vrfy;
+        int ret;
+
+        ret = regmap_write(stw481x->map, STW_PCTL_REG_HI, msb);
+        if (ret)
+                return ret;
+        ret = regmap_write(stw481x->map, STW_PCTL_REG_LO, lsb);
+        if (ret)
+                return ret;
+        ret = regmap_read(stw481x->map, STW_PCTL_REG_HI, &val);
+        if (ret)
+                return ret;
+        vrfy = (val & 0x03) << 3;
+        ret = regmap_read(stw481x->map, STW_PCTL_REG_LO, &val);
+        if (ret)
+                return ret;
+        vrfy |= ((val >> 5) & 0x07);
+        if (vrfy != reg)
+                return -EIO;
+        return (val >> 1) & 0x0f;
+}
+
+static int stw481x_startup(struct stw481x *stw481x)
+{
+        /* Voltages multiplied by 100 */
+        u8 vcore_val[] = { 100, 105, 110, 115, 120, 122, 124, 126, 128,
+                           130, 132, 134, 136, 138, 140, 145 };
+        u8 vpll_val[] = { 105, 120, 130, 180 };
+        u8 vaux_val[] = { 15, 18, 25, 28 };
+        u8 vcore;
+        u8 vcore_slp;
+        u8 vpll;
+        u8 vaux;
+        bool vaux_en;
+        bool it_warn;
+        int ret;
+        unsigned int val;
+
+        ret = regmap_read(stw481x->map, STW_CONF1, &val);
+        if (ret)
+                return ret;
+        vaux_en = !!(val & STW_CONF1_PDN_VAUX);
+        it_warn = !!(val & STW_CONF1_IT_WARN);
+
+        dev_info(&stw481x->client->dev, "voltages %s\n",
+                (val & STW_CONF1_V_MONITORING) ? "OK" : "LOW");
+        dev_info(&stw481x->client->dev, "MMC level shifter %s\n",
+                (val & STW_CONF1_MMC_LS_STATUS) ? "high impedance" : "ON");
+        dev_info(&stw481x->client->dev, "VMMC: %s\n",
+                (val & STW_CONF1_PDN_VMMC) ? "ON" : "disabled");
+
+        dev_info(&stw481x->client->dev, "STw481x power control registers:\n");
+
+        ret = stw481x_get_pctl_reg(stw481x, STW_PC_VCORE_SEL);
+        if (ret < 0)
+                return ret;
+        vcore = ret & 0x0f;
+
+        ret = stw481x_get_pctl_reg(stw481x, STW_PC_VAUX_SEL);
+        if (ret < 0)
+                return ret;
+        vaux = (ret >> 2) & 3;
+        vpll = (ret >> 4) & 1; /* Save bit 4 */
+
+        ret = stw481x_get_pctl_reg(stw481x, STW_PC_VPLL_SEL);
+        if (ret < 0)
+                return ret;
+        vpll |= (ret >> 1) & 2;
+
+        dev_info(&stw481x->client->dev, "VCORE: %u.%uV %s\n",
+                vcore_val[vcore] / 100, vcore_val[vcore] % 100,
+                (ret & 4) ? "ON" : "OFF");
+
+        dev_info(&stw481x->client->dev, "VPLL:  %u.%uV %s\n",
+                vpll_val[vpll] / 100, vpll_val[vpll] % 100,
+                (ret & 0x10) ? "ON" : "OFF");
+
+        dev_info(&stw481x->client->dev, "VAUX:  %u.%uV %s\n",
+                vaux_val[vaux] / 10, vaux_val[vaux] % 10,
+                vaux_en ? "ON" : "OFF");
+
+        ret = regmap_read(stw481x->map, STW_CONF2, &val);
+        if (ret)
+                return ret;
+
+        dev_info(&stw481x->client->dev, "TWARN: %s threshold, %s\n",
+                it_warn ? "below" : "above",
+                (val & STW_CONF2_MASK_TWARN) ?
+                 "enabled" : "mask through VDDOK");
+        dev_info(&stw481x->client->dev, "VMMC: %s\n",
+                (val & STW_CONF2_VMMC_EXT) ? "internal" : "external");
+        dev_info(&stw481x->client->dev, "IT WAKE UP: %s\n",
+                (val & STW_CONF2_MASK_IT_WAKE_UP) ? "enabled" : "masked");
+        dev_info(&stw481x->client->dev, "GPO1: %s\n",
+                (val & STW_CONF2_GPO1) ? "low" : "high impedance");
+        dev_info(&stw481x->client->dev, "GPO2: %s\n",
+                (val & STW_CONF2_GPO2) ? "low" : "high impedance");
+
+        ret = regmap_read(stw481x->map, STW_VCORE_SLEEP, &val);
+        if (ret)
+                return ret;
+        vcore_slp = val & 0x0f;
+        dev_info(&stw481x->client->dev, "VCORE SLEEP: %u.%uV\n",
+                vcore_val[vcore_slp] / 100, vcore_val[vcore_slp] % 100);
+
+        return 0;
+}
+
+/*
+ * MFD cells - we have one cell which is selected operation
+ * mode, and we always have a GPIO cell.
+ */
+static struct mfd_cell stw481x_cells[] = {
+        {
+                .of_compatible = "st,stw481x-vmmc",
+                .name = "stw481x-vmmc-regulator",
+                .id = -1,
+        },
+};
+
+const struct regmap_config stw481x_regmap_config = {
+        .reg_bits = 8,
+        .val_bits = 8,
+};
+
+static int stw481x_probe(struct i2c_client *client,
+                         const struct i2c_device_id *id)
+{
+        struct stw481x                  *stw481x;
+        int ret;
+        int i;
+
+        stw481x = devm_kzalloc(&client->dev, sizeof(*stw481x), GFP_KERNEL);
+        if (!stw481x)
+                return -ENOMEM;
+
+        i2c_set_clientdata(client, stw481x);
+        stw481x->client = client;
+        stw481x->map = devm_regmap_init_i2c(client, &stw481x_regmap_config);
+
+        ret = stw481x_startup(stw481x);
+        if (ret) {
+                dev_err(&client->dev, "chip initialization failed\n");
+                return ret;
+        }
+
+        /* Set up and register the platform devices. */
+        for (i = 0; i < ARRAY_SIZE(stw481x_cells); i++) {
+                /* One state holder for all drivers, this is simple */
+                stw481x_cells[i].platform_data = stw481x;
+                stw481x_cells[i].pdata_size = sizeof(*stw481x);
+        }
+
+        ret = mfd_add_devices(&client->dev, 0, stw481x_cells,
+                        ARRAY_SIZE(stw481x_cells), NULL, 0, NULL);
+        if (ret)
+                return ret;
+
+        dev_info(&client->dev, "initialized STw481x device\n");
+
+        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
+ * the structure of the I2C core.
+ */
+static const struct i2c_device_id stw481x_id[] = {
+        { "stw481x", 0 },
+        { },
+};
+
+static const struct of_device_id stw481x_match[] = {
+        { .compatible = "st,stw4810", },
+        { .compatible = "st,stw4811", },
+        { },
+};
+MODULE_DEVICE_TABLE(of, stw481x_match);
+
+static struct i2c_driver stw481x_driver = {
+        .driver = {
+                .name   = "stw481x",
+                .of_match_table = stw481x_match,
+        },
+        .probe          = stw481x_probe,
+        .remove         = stw481x_remove,
+        .id_table       = stw481x_id,
+};
+
+module_i2c_driver(stw481x_driver);
+
+MODULE_AUTHOR("Linus Walleij");
+MODULE_DESCRIPTION("STw481x PMIC driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/mfd/tc3589x.c b/drivers/mfd/tc3589x.c
index 70f4909fee13..87ea51dc6234 100644
--- a/drivers/mfd/tc3589x.c
+++ b/drivers/mfd/tc3589x.c
@@ -16,6 +16,19 @@
 #include <linux/mfd/core.h>
 #include <linux/mfd/tc3589x.h>
 
+/**
+ * enum tc3589x_version - indicates the TC3589x version
+ */
+enum tc3589x_version {
+        TC3589X_TC35890,
+        TC3589X_TC35892,
+        TC3589X_TC35893,
+        TC3589X_TC35894,
+        TC3589X_TC35895,
+        TC3589X_TC35896,
+        TC3589X_UNKNOWN,
+};
+
 #define TC3589x_CLKMODE_MODCTL_SLEEP            0x0
 #define TC3589x_CLKMODE_MODCTL_OPERATION        (1 << 0)
 
@@ -361,7 +374,21 @@ static int tc3589x_probe(struct i2c_client *i2c,
         tc3589x->i2c = i2c;
         tc3589x->pdata = pdata;
         tc3589x->irq_base = pdata->irq_base;
-        tc3589x->num_gpio = id->driver_data;
+
+        switch (id->driver_data) {
+        case TC3589X_TC35893:
+        case TC3589X_TC35895:
+        case TC3589X_TC35896:
+                tc3589x->num_gpio = 20;
+                break;
+        case TC3589X_TC35890:
+        case TC3589X_TC35892:
+        case TC3589X_TC35894:
+        case TC3589X_UNKNOWN:
+        default:
+                tc3589x->num_gpio = 24;
+                break;
+        }
 
         i2c_set_clientdata(i2c, tc3589x);
 
@@ -432,7 +459,13 @@ static int tc3589x_resume(struct device *dev)
 static SIMPLE_DEV_PM_OPS(tc3589x_dev_pm_ops, tc3589x_suspend, tc3589x_resume);
 
 static const struct i2c_device_id tc3589x_id[] = {
-        { "tc3589x", 24 },
+        { "tc35890", TC3589X_TC35890 },
+        { "tc35892", TC3589X_TC35892 },
+        { "tc35893", TC3589X_TC35893 },
+        { "tc35894", TC3589X_TC35894 },
+        { "tc35895", TC3589X_TC35895 },
+        { "tc35896", TC3589X_TC35896 },
+        { "tc3589x", TC3589X_UNKNOWN },
         { }
 };
 MODULE_DEVICE_TABLE(i2c, tc3589x_id);
diff --git a/drivers/mfd/ti-ssp.c b/drivers/mfd/ti-ssp.c
index 1c2b994e1f6c..71e3e0c5bf73 100644
--- a/drivers/mfd/ti-ssp.c
+++ b/drivers/mfd/ti-ssp.c
@@ -445,7 +445,6 @@ static int ti_ssp_remove(struct platform_device *pdev)
         iounmap(ssp->regs);
         release_mem_region(ssp->res->start, resource_size(ssp->res));
         kfree(ssp);
-        dev_set_drvdata(dev, NULL);
         return 0;
 }
 
diff --git a/drivers/mfd/ti_am335x_tscadc.c b/drivers/mfd/ti_am335x_tscadc.c
index baaf5a8123bb..88718abfb9ba 100644
--- a/drivers/mfd/ti_am335x_tscadc.c
+++ b/drivers/mfd/ti_am335x_tscadc.c
@@ -56,21 +56,25 @@ EXPORT_SYMBOL_GPL(am335x_tsc_se_update);
 
 void am335x_tsc_se_set(struct ti_tscadc_dev *tsadc, u32 val)
 {
-        spin_lock(&tsadc->reg_lock);
+        unsigned long flags;
+
+        spin_lock_irqsave(&tsadc->reg_lock, flags);
         tsadc->reg_se_cache = tscadc_readl(tsadc, REG_SE);
         tsadc->reg_se_cache |= val;
         am335x_tsc_se_update(tsadc);
-        spin_unlock(&tsadc->reg_lock);
+        spin_unlock_irqrestore(&tsadc->reg_lock, flags);
 }
 EXPORT_SYMBOL_GPL(am335x_tsc_se_set);
 
 void am335x_tsc_se_clr(struct ti_tscadc_dev *tsadc, u32 val)
 {
-        spin_lock(&tsadc->reg_lock);
+        unsigned long flags;
+
+        spin_lock_irqsave(&tsadc->reg_lock, flags);
         tsadc->reg_se_cache = tscadc_readl(tsadc, REG_SE);
         tsadc->reg_se_cache &= ~val;
         am335x_tsc_se_update(tsadc);
-        spin_unlock(&tsadc->reg_lock);
+        spin_unlock_irqrestore(&tsadc->reg_lock, flags);
 }
 EXPORT_SYMBOL_GPL(am335x_tsc_se_clr);
 
@@ -95,7 +99,7 @@ static	int ti_tscadc_probe(struct platform_device *pdev)
         const __be32            *cur;
         u32                     val;
         int                     err, ctrl;
-        int                     clk_value, clock_rate;
+        int                     clock_rate;
         int                     tsc_wires = 0, adc_channels = 0, total_channels;
         int                     readouts = 0;
 
@@ -196,11 +200,11 @@ static	int ti_tscadc_probe(struct platform_device *pdev)
         }
         clock_rate = clk_get_rate(clk);
         clk_put(clk);
-        clk_value = clock_rate / ADC_CLK;
+        tscadc->clk_div = clock_rate / ADC_CLK;
 
         /* TSCADC_CLKDIV needs to be configured to the value minus 1 */
-        clk_value = clk_value - 1;
-        tscadc_writel(tscadc, REG_CLKDIV, clk_value);
+        tscadc->clk_div--;
+        tscadc_writel(tscadc, REG_CLKDIV, tscadc->clk_div);
 
         /* Set the control register bits */
         ctrl = CNTRLREG_STEPCONFIGWRT |
@@ -303,6 +307,8 @@ static int tscadc_resume(struct device *dev)
         tscadc_writel(tscadc_dev, REG_CTRL,
                         (restore | CNTRLREG_TSCSSENB));
 
+        tscadc_writel(tscadc_dev, REG_CLKDIV, tscadc_dev->clk_div);
+
         return 0;
 }
 
@@ -326,7 +332,7 @@ static struct platform_driver ti_tscadc_driver = {
                 .name   = "ti_am3359-tscadc",
                 .owner  = THIS_MODULE,
                 .pm     = TSCADC_PM_OPS,
-                .of_match_table = of_match_ptr(ti_tscadc_dt_ids),
+                .of_match_table = ti_tscadc_dt_ids,
         },
         .probe  = ti_tscadc_probe,
         .remove = ti_tscadc_remove,
diff --git a/drivers/mfd/timberdale.c b/drivers/mfd/timberdale.c
index a6755ec7bd6a..dbb34f94e5e3 100644
--- a/drivers/mfd/timberdale.c
+++ b/drivers/mfd/timberdale.c
@@ -678,7 +678,7 @@ static int timb_probe(struct pci_dev *dev,
         priv->ctl_mapbase = mapbase + CHIPCTLOFFSET;
         if (!request_mem_region(priv->ctl_mapbase, CHIPCTLSIZE, "timb-ctl")) {
                 dev_err(&dev->dev, "Failed to request ctl mem\n");
-                goto err_request;
+                goto err_start;
         }
 
         priv->ctl_membase = ioremap(priv->ctl_mapbase, CHIPCTLSIZE);
@@ -828,13 +828,10 @@ err_config:
         iounmap(priv->ctl_membase);
 err_ioremap:
         release_mem_region(priv->ctl_mapbase, CHIPCTLSIZE);
-err_request:
-        pci_set_drvdata(dev, NULL);
 err_start:
         pci_disable_device(dev);
 err_enable:
         kfree(priv);
-        pci_set_drvdata(dev, NULL);
         return -ENODEV;
 }
 
@@ -851,7 +848,6 @@ static void timb_remove(struct pci_dev *dev)
 
         pci_disable_msix(dev);
         pci_disable_device(dev);
-        pci_set_drvdata(dev, NULL);
         kfree(priv);
 }
 
diff --git a/drivers/mfd/tps6507x.c b/drivers/mfd/tps6507x.c
index 5ad4b772b097..a081b925d10b 100644
--- a/drivers/mfd/tps6507x.c
+++ b/drivers/mfd/tps6507x.c
@@ -19,6 +19,7 @@
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/i2c.h>
+#include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/mfd/core.h>
 #include <linux/mfd/tps6507x.h>
diff --git a/drivers/mfd/tps65217.c b/drivers/mfd/tps65217.c
index b8f48647661e..b7be0b295575 100644
--- a/drivers/mfd/tps65217.c
+++ b/drivers/mfd/tps65217.c
@@ -245,7 +245,7 @@ static struct i2c_driver tps65217_driver = {
         .driver         = {
                 .name   = "tps65217",
                 .owner  = THIS_MODULE,
-                .of_match_table = of_match_ptr(tps65217_of_match),
+                .of_match_table = tps65217_of_match,
         },
         .id_table       = tps65217_id_table,
         .probe          = tps65217_probe,
diff --git a/drivers/mfd/tps6586x.c b/drivers/mfd/tps6586x.c
index f54fe4d4f77b..ee61fd7c198d 100644
--- a/drivers/mfd/tps6586x.c
+++ b/drivers/mfd/tps6586x.c
@@ -26,6 +26,7 @@
 #include <linux/i2c.h>
 #include <linux/platform_device.h>
 #include <linux/regmap.h>
+#include <linux/of.h>
 
 #include <linux/mfd/core.h>
 #include <linux/mfd/tps6586x.h>
@@ -124,6 +125,7 @@ struct tps6586x {
         struct i2c_client       *client;
         struct regmap           *regmap;
 
+        int                     irq;
         struct irq_chip         irq_chip;
         struct mutex            irq_lock;
         int                     irq_base;
@@ -261,12 +263,23 @@ static void tps6586x_irq_sync_unlock(struct irq_data *data)
         mutex_unlock(&tps6586x->irq_lock);
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int tps6586x_irq_set_wake(struct irq_data *irq_data, unsigned int on)
+{
+        struct tps6586x *tps6586x = irq_data_get_irq_chip_data(irq_data);
+        return irq_set_irq_wake(tps6586x->irq, on);
+}
+#else
+#define tps6586x_irq_set_wake NULL
+#endif
+
 static struct irq_chip tps6586x_irq_chip = {
         .name = "tps6586x",
         .irq_bus_lock = tps6586x_irq_lock,
         .irq_bus_sync_unlock = tps6586x_irq_sync_unlock,
         .irq_disable = tps6586x_irq_disable,
         .irq_enable = tps6586x_irq_enable,
+        .irq_set_wake = tps6586x_irq_set_wake,
 };
 
 static int tps6586x_irq_map(struct irq_domain *h, unsigned int virq,
@@ -331,6 +344,8 @@ static int tps6586x_irq_init(struct tps6586x *tps6586x, int irq,
         int new_irq_base;
         int irq_num = ARRAY_SIZE(tps6586x_irqs);
 
+        tps6586x->irq = irq;
+
         mutex_init(&tps6586x->irq_lock);
         for (i = 0; i < 5; i++) {
                 tps6586x->mask_reg[i] = 0xff;
@@ -360,10 +375,8 @@ static int tps6586x_irq_init(struct tps6586x *tps6586x, int irq,
         ret = request_threaded_irq(irq, NULL, tps6586x_irq, IRQF_ONESHOT,
                                    "tps6586x", tps6586x);
 
-        if (!ret) {
+        if (!ret)
                 device_init_wakeup(tps6586x->dev, 1);
-                enable_irq_wake(irq);
-        }
 
         return ret;
 }
diff --git a/drivers/mfd/tps65910.c b/drivers/mfd/tps65910.c
index d79277204835..c0f608e3ca9e 100644
--- a/drivers/mfd/tps65910.c
+++ b/drivers/mfd/tps65910.c
@@ -25,6 +25,7 @@
 #include <linux/mfd/core.h>
 #include <linux/regmap.h>
 #include <linux/mfd/tps65910.h>
+#include <linux/of.h>
 #include <linux/of_device.h>
 
 static struct resource rtc_resources[] = {
@@ -410,14 +411,10 @@ static struct tps65910_board *tps65910_parse_dt(struct i2c_client *client,
         ret = of_property_read_u32(np, "ti,vmbch-threshold", &prop);
         if (!ret)
                 board_info->vmbch_threshold = prop;
-        else if (*chip_id == TPS65911)
-                dev_warn(&client->dev, "VMBCH-Threshold not specified");
 
         ret = of_property_read_u32(np, "ti,vmbch2-threshold", &prop);
         if (!ret)
                 board_info->vmbch2_threshold = prop;
-        else if (*chip_id == TPS65911)
-                dev_warn(&client->dev, "VMBCH2-Threshold not specified");
 
         prop = of_property_read_bool(np, "ti,en-ck32k-xtal");
         board_info->en_ck32k_xtal = prop;
diff --git a/drivers/mfd/twl6040.c b/drivers/mfd/twl6040.c
index daf66942071c..0779d5ab9ab1 100644
--- a/drivers/mfd/twl6040.c
+++ b/drivers/mfd/twl6040.c
@@ -565,13 +565,13 @@ static int twl6040_probe(struct i2c_client *client,
                                       twl6040->supplies);
         if (ret != 0) {
                 dev_err(&client->dev, "Failed to get supplies: %d\n", ret);
-                goto regulator_get_err;
+                return ret;
         }
 
         ret = regulator_bulk_enable(TWL6040_NUM_SUPPLIES, twl6040->supplies);
         if (ret != 0) {
                 dev_err(&client->dev, "Failed to enable supplies: %d\n", ret);
-                goto regulator_get_err;
+                return ret;
         }
 
         twl6040->dev = &client->dev;
@@ -619,7 +619,7 @@ static int twl6040_probe(struct i2c_client *client,
                                         "twl6040_irq_th", twl6040);
         if (ret) {
                 dev_err(twl6040->dev, "Thermal IRQ request failed: %d\n", ret);
-                goto thirq_err;
+                goto readyirq_err;
         }
 
         /* dual-access registers controlled by I2C only */
@@ -659,21 +659,14 @@ static int twl6040_probe(struct i2c_client *client,
         ret = mfd_add_devices(&client->dev, -1, twl6040->cells, children,
                               NULL, 0, NULL);
         if (ret)
-                goto mfd_err;
+                goto readyirq_err;
 
         return 0;
 
-mfd_err:
-        devm_free_irq(&client->dev, twl6040->irq_th, twl6040);
-thirq_err:
-        devm_free_irq(&client->dev, twl6040->irq_ready, twl6040);
 readyirq_err:
         regmap_del_irq_chip(twl6040->irq, twl6040->irq_data);
 gpio_err:
         regulator_bulk_disable(TWL6040_NUM_SUPPLIES, twl6040->supplies);
-regulator_get_err:
-        i2c_set_clientdata(client, NULL);
-
         return ret;
 }
 
@@ -684,12 +677,9 @@ static int twl6040_remove(struct i2c_client *client)
         if (twl6040->power_count)
                 twl6040_power(twl6040, 0);
 
-        devm_free_irq(&client->dev, twl6040->irq_ready, twl6040);
-        devm_free_irq(&client->dev, twl6040->irq_th, twl6040);
         regmap_del_irq_chip(twl6040->irq, twl6040->irq_data);
 
         mfd_remove_devices(&client->dev);
-        i2c_set_clientdata(client, NULL);
 
         regulator_bulk_disable(TWL6040_NUM_SUPPLIES, twl6040->supplies);
 
diff --git a/drivers/mfd/ucb1x00-core.c b/drivers/mfd/ucb1x00-core.c
index d5966e6b5a7d..0313f839e8fa 100644
--- a/drivers/mfd/ucb1x00-core.c
+++ b/drivers/mfd/ucb1x00-core.c
@@ -553,6 +553,7 @@ static int ucb1x00_probe(struct mcp *mcp)
         if (ucb->irq_base < 0) {
                 dev_err(&ucb->dev, "unable to allocate 16 irqs: %d\n",
                         ucb->irq_base);
+                ret = ucb->irq_base;
                 goto err_irq_alloc;
         }
 
diff --git a/drivers/mfd/wm5102-tables.c b/drivers/mfd/wm5102-tables.c
index 802dd3cb18cf..1e9a4b2102f9 100644
--- a/drivers/mfd/wm5102-tables.c
+++ b/drivers/mfd/wm5102-tables.c
@@ -903,7 +903,6 @@ static const struct reg_default wm5102_reg_default[] = {
         { 0x00000D1B, 0xFFFF },   /* R3355  - IRQ2 Status 4 Mask */ 
         { 0x00000D1C, 0xFFFF },   /* R3356  - IRQ2 Status 5 Mask */ 
         { 0x00000D1F, 0x0000 },   /* R3359  - IRQ2 Control */ 
-        { 0x00000D50, 0x0000 },   /* R3408  - AOD wkup and trig */
         { 0x00000D53, 0xFFFF },   /* R3411  - AOD IRQ Mask IRQ1 */ 
         { 0x00000D54, 0xFFFF },   /* R3412  - AOD IRQ Mask IRQ2 */ 
         { 0x00000D56, 0x0000 },   /* R3414  - Jack detect debounce */ 
diff --git a/drivers/mfd/wm5110-tables.c b/drivers/mfd/wm5110-tables.c
index 3113e39b318e..bf8b3b5ad1fe 100644
--- a/drivers/mfd/wm5110-tables.c
+++ b/drivers/mfd/wm5110-tables.c
@@ -243,6 +243,12 @@ int wm5110_patch(struct arizona *arizona)
 EXPORT_SYMBOL_GPL(wm5110_patch);
 
 static const struct regmap_irq wm5110_aod_irqs[ARIZONA_NUM_IRQ] = {
+        [ARIZONA_IRQ_MICD_CLAMP_FALL] = {
+                .mask = ARIZONA_MICD_CLAMP_FALL_EINT1
+        },
+        [ARIZONA_IRQ_MICD_CLAMP_RISE] = {
+                .mask = ARIZONA_MICD_CLAMP_RISE_EINT1
+        },
         [ARIZONA_IRQ_GP5_FALL] = { .mask = ARIZONA_GP5_FALL_EINT1 },
         [ARIZONA_IRQ_GP5_RISE] = { .mask = ARIZONA_GP5_RISE_EINT1 },
         [ARIZONA_IRQ_JD_FALL] = { .mask = ARIZONA_JD1_FALL_EINT1 },
@@ -505,6 +511,7 @@ static const struct reg_default wm5110_reg_default[] = {
         { 0x00000293, 0x0000 },    /* R659   - Accessory Detect Mode 1 */
         { 0x0000029B, 0x0020 },    /* R667   - Headphone Detect 1 */
         { 0x0000029C, 0x0000 },    /* R668   - Headphone Detect 2 */
+        { 0x000002A2, 0x0000 },    /* R674   - Micd clamp control */
         { 0x000002A3, 0x1102 },    /* R675   - Mic Detect 1 */
         { 0x000002A4, 0x009F },    /* R676   - Mic Detect 2 */
         { 0x000002A5, 0x0000 },    /* R677   - Mic Detect 3 */
@@ -592,7 +599,7 @@ static const struct reg_default wm5110_reg_default[] = {
         { 0x0000043E, 0x0080 },    /* R1086  - DAC Volume Limit 6R */
         { 0x0000043F, 0x0800 },    /* R1087  - Noise Gate Select 6R */
         { 0x00000450, 0x0000 },    /* R1104  - DAC AEC Control 1 */
-        { 0x00000458, 0x0001 },    /* R1112  - Noise Gate Control */
+        { 0x00000458, 0x0000 },    /* R1112  - Noise Gate Control */
         { 0x00000480, 0x0040 },    /* R1152  - Class W ANC Threshold 1 */
         { 0x00000481, 0x0040 },    /* R1153  - Class W ANC Threshold 2 */
         { 0x00000490, 0x0069 },    /* R1168  - PDM SPK1 CTRL 1 */
@@ -1204,7 +1211,6 @@ static const struct reg_default wm5110_reg_default[] = {
         { 0x00000D1B, 0xFFFF },    /* R3355  - IRQ2 Status 4 Mask */
         { 0x00000D1C, 0xFFFF },    /* R3356  - IRQ2 Status 5 Mask */
         { 0x00000D1F, 0x0000 },    /* R3359  - IRQ2 Control */
-        { 0x00000D50, 0x0000 },    /* R3408  - AOD wkup and trig */
         { 0x00000D53, 0xFFFF },    /* R3411  - AOD IRQ Mask IRQ1 */
         { 0x00000D54, 0xFFFF },    /* R3412  - AOD IRQ Mask IRQ2 */
         { 0x00000D56, 0x0000 },    /* R3414  - Jack detect debounce */
@@ -1440,6 +1446,7 @@ static bool wm5110_readable_register(struct device *dev, unsigned int reg)
         case ARIZONA_ACCESSORY_DETECT_MODE_1:
         case ARIZONA_HEADPHONE_DETECT_1:
         case ARIZONA_HEADPHONE_DETECT_2:
+        case ARIZONA_MICD_CLAMP_CONTROL:
         case ARIZONA_MIC_DETECT_1:
         case ARIZONA_MIC_DETECT_2:
         case ARIZONA_MIC_DETECT_3:
@@ -2291,21 +2298,37 @@ static bool wm5110_readable_register(struct device *dev, unsigned int reg)
         case ARIZONA_DSP1_STATUS_1:
         case ARIZONA_DSP1_STATUS_2:
         case ARIZONA_DSP1_STATUS_3:
+        case ARIZONA_DSP1_SCRATCH_0:
+        case ARIZONA_DSP1_SCRATCH_1:
+        case ARIZONA_DSP1_SCRATCH_2:
+        case ARIZONA_DSP1_SCRATCH_3:
         case ARIZONA_DSP2_CONTROL_1:
         case ARIZONA_DSP2_CLOCKING_1:
         case ARIZONA_DSP2_STATUS_1:
         case ARIZONA_DSP2_STATUS_2:
         case ARIZONA_DSP2_STATUS_3:
+        case ARIZONA_DSP2_SCRATCH_0:
+        case ARIZONA_DSP2_SCRATCH_1:
+        case ARIZONA_DSP2_SCRATCH_2:
+        case ARIZONA_DSP2_SCRATCH_3:
         case ARIZONA_DSP3_CONTROL_1:
         case ARIZONA_DSP3_CLOCKING_1:
         case ARIZONA_DSP3_STATUS_1:
         case ARIZONA_DSP3_STATUS_2:
         case ARIZONA_DSP3_STATUS_3:
+        case ARIZONA_DSP3_SCRATCH_0:
+        case ARIZONA_DSP3_SCRATCH_1:
+        case ARIZONA_DSP3_SCRATCH_2:
+        case ARIZONA_DSP3_SCRATCH_3:
         case ARIZONA_DSP4_CONTROL_1:
         case ARIZONA_DSP4_CLOCKING_1:
         case ARIZONA_DSP4_STATUS_1:
         case ARIZONA_DSP4_STATUS_2:
         case ARIZONA_DSP4_STATUS_3:
+        case ARIZONA_DSP4_SCRATCH_0:
+        case ARIZONA_DSP4_SCRATCH_1:
+        case ARIZONA_DSP4_SCRATCH_2:
+        case ARIZONA_DSP4_SCRATCH_3:
                 return true;
         default:
                 return false;
@@ -2347,25 +2370,41 @@ static bool wm5110_volatile_register(struct device *dev, unsigned int reg)
         case ARIZONA_INTERRUPT_RAW_STATUS_7:
         case ARIZONA_INTERRUPT_RAW_STATUS_8:
         case ARIZONA_IRQ_PIN_STATUS:
+        case ARIZONA_AOD_WKUP_AND_TRIG:
         case ARIZONA_AOD_IRQ1:
         case ARIZONA_AOD_IRQ2:
+        case ARIZONA_AOD_IRQ_RAW_STATUS:
         case ARIZONA_FX_CTRL2:
         case ARIZONA_ASRC_STATUS:
         case ARIZONA_DSP_STATUS:
-        case ARIZONA_DSP1_CONTROL_1:
-        case ARIZONA_DSP1_CLOCKING_1:
         case ARIZONA_DSP1_STATUS_1:
         case ARIZONA_DSP1_STATUS_2:
         case ARIZONA_DSP1_STATUS_3:
+        case ARIZONA_DSP1_SCRATCH_0:
+        case ARIZONA_DSP1_SCRATCH_1:
+        case ARIZONA_DSP1_SCRATCH_2:
+        case ARIZONA_DSP1_SCRATCH_3:
         case ARIZONA_DSP2_STATUS_1:
         case ARIZONA_DSP2_STATUS_2:
         case ARIZONA_DSP2_STATUS_3:
+        case ARIZONA_DSP2_SCRATCH_0:
+        case ARIZONA_DSP2_SCRATCH_1:
+        case ARIZONA_DSP2_SCRATCH_2:
+        case ARIZONA_DSP2_SCRATCH_3:
         case ARIZONA_DSP3_STATUS_1:
         case ARIZONA_DSP3_STATUS_2:
         case ARIZONA_DSP3_STATUS_3:
+        case ARIZONA_DSP3_SCRATCH_0:
+        case ARIZONA_DSP3_SCRATCH_1:
+        case ARIZONA_DSP3_SCRATCH_2:
+        case ARIZONA_DSP3_SCRATCH_3:
         case ARIZONA_DSP4_STATUS_1:
         case ARIZONA_DSP4_STATUS_2:
         case ARIZONA_DSP4_STATUS_3:
+        case ARIZONA_DSP4_SCRATCH_0:
+        case ARIZONA_DSP4_SCRATCH_1:
+        case ARIZONA_DSP4_SCRATCH_2:
+        case ARIZONA_DSP4_SCRATCH_3:
                 return true;
         default:
                 return false;
diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c
index e1c283e6d4e5..030827511667 100644
--- a/drivers/mfd/wm8994-core.c
+++ b/drivers/mfd/wm8994-core.c
@@ -33,84 +33,6 @@
 
 #include "wm8994.h"
 
-/**
- * wm8994_reg_read: Read a single WM8994 register.
- *
- * @wm8994: Device to read from.
- * @reg: Register to read.
- */
-int wm8994_reg_read(struct wm8994 *wm8994, unsigned short reg)
-{
-        unsigned int val;
-        int ret;
-
-        ret = regmap_read(wm8994->regmap, reg, &val);
-
-        if (ret < 0)
-                return ret;
-        else
-                return val;
-}
-EXPORT_SYMBOL_GPL(wm8994_reg_read);
-
-/**
- * wm8994_bulk_read: Read multiple WM8994 registers
- *
- * @wm8994: Device to read from
- * @reg: First register
- * @count: Number of registers
- * @buf: Buffer to fill.  The data will be returned big endian.
- */
-int wm8994_bulk_read(struct wm8994 *wm8994, unsigned short reg,
-                     int count, u16 *buf)
-{
-        return regmap_bulk_read(wm8994->regmap, reg, buf, count);
-}
-
-/**
- * wm8994_reg_write: Write a single WM8994 register.
- *
- * @wm8994: Device to write to.
- * @reg: Register to write to.
- * @val: Value to write.
- */
-int wm8994_reg_write(struct wm8994 *wm8994, unsigned short reg,
-                     unsigned short val)
-{
-        return regmap_write(wm8994->regmap, reg, val);
-}
-EXPORT_SYMBOL_GPL(wm8994_reg_write);
-
-/**
- * wm8994_bulk_write: Write multiple WM8994 registers
- *
- * @wm8994: Device to write to
- * @reg: First register
- * @count: Number of registers
- * @buf: Buffer to write from.  Data must be big-endian formatted.
- */
-int wm8994_bulk_write(struct wm8994 *wm8994, unsigned short reg,
-                      int count, const u16 *buf)
-{
-        return regmap_raw_write(wm8994->regmap, reg, buf, count * sizeof(u16));
-}
-EXPORT_SYMBOL_GPL(wm8994_bulk_write);
-
-/**
- * wm8994_set_bits: Set the value of a bitfield in a WM8994 register
- *
- * @wm8994: Device to write to.
- * @reg: Register to write to.
- * @mask: Mask of bits to set.
- * @val: Value to set (unshifted)
- */
-int wm8994_set_bits(struct wm8994 *wm8994, unsigned short reg,
-                    unsigned short mask, unsigned short val)
-{
-        return regmap_update_bits(wm8994->regmap, reg, mask, val);
-}
-EXPORT_SYMBOL_GPL(wm8994_set_bits);
-
 static struct mfd_cell wm8994_regulator_devs[] = {
         {
                 .name = "wm8994-ldo",