33 files changed, 618 insertions, 302 deletions

diff --git a/arch/x86/platform/olpc/olpc-xo1.c b/arch/x86/platform/olpc/olpc-xo1.c
index 99513642a0e6..ab81fb271760 100644
--- a/arch/x86/platform/olpc/olpc-xo1.c
+++ b/arch/x86/platform/olpc/olpc-xo1.c
@@ -72,9 +72,9 @@ static int __devinit olpc_xo1_probe(struct platform_device *pdev)
                 dev_err(&pdev->dev, "can't fetch device resource info\n");
                 return -EIO;
         }
-        if (strcmp(pdev->name, "olpc-xo1-pms") == 0)
+        if (strcmp(pdev->name, "cs5535-pms") == 0)
                 pms_base = res->start;
-        else if (strcmp(pdev->name, "olpc-xo1-ac-acpi") == 0)
+        else if (strcmp(pdev->name, "olpc-xo1-pm-acpi") == 0)
                 acpi_base = res->start;
 
         /* If we have both addresses, we can override the poweroff hook */
@@ -90,9 +90,9 @@ static int __devexit olpc_xo1_remove(struct platform_device *pdev)
 {
         mfd_cell_disable(pdev);
 
-        if (strcmp(pdev->name, "olpc-xo1-pms") == 0)
+        if (strcmp(pdev->name, "cs5535-pms") == 0)
                 pms_base = 0;
-        else if (strcmp(pdev->name, "olpc-xo1-acpi") == 0)
+        else if (strcmp(pdev->name, "olpc-xo1-pm-acpi") == 0)
                 acpi_base = 0;
 
         pm_power_off = NULL;
@@ -101,7 +101,7 @@ static int __devexit olpc_xo1_remove(struct platform_device *pdev)
 
 static struct platform_driver cs5535_pms_drv = {
         .driver = {
-                .name = "olpc-xo1-pms",
+                .name = "cs5535-pms",
                 .owner = THIS_MODULE,
         },
         .probe = olpc_xo1_probe,
@@ -110,7 +110,7 @@ static struct platform_driver cs5535_pms_drv = {
 
 static struct platform_driver cs5535_acpi_drv = {
         .driver = {
-                .name = "olpc-xo1-acpi",
+                .name = "olpc-xo1-pm-acpi",
                 .owner = THIS_MODULE,
         },
         .probe = olpc_xo1_probe,
@@ -121,22 +121,21 @@ static int __init olpc_xo1_init(void)
 {
         int r;
 
-        r = mfd_shared_platform_driver_register(&cs5535_pms_drv, "cs5535-pms");
+        r = platform_driver_register(&cs5535_pms_drv);
         if (r)
                 return r;
 
-        r = mfd_shared_platform_driver_register(&cs5535_acpi_drv,
-                        "cs5535-acpi");
+        r = platform_driver_register(&cs5535_acpi_drv);
         if (r)
-                mfd_shared_platform_driver_unregister(&cs5535_pms_drv);
+                platform_driver_unregister(&cs5535_pms_drv);
 
         return r;
 }
 
 static void __exit olpc_xo1_exit(void)
 {
-        mfd_shared_platform_driver_unregister(&cs5535_acpi_drv);
-        mfd_shared_platform_driver_unregister(&cs5535_pms_drv);
+        platform_driver_unregister(&cs5535_acpi_drv);
+        platform_driver_unregister(&cs5535_pms_drv);
 }
 
 MODULE_AUTHOR("Daniel Drake <dsd@laptop.org>");
diff --git a/drivers/mfd/88pm860x-core.c b/drivers/mfd/88pm860x-core.c
index 9c511c1604a5..011cb6ce861b 100644
--- a/drivers/mfd/88pm860x-core.c
+++ b/drivers/mfd/88pm860x-core.c
@@ -416,7 +416,6 @@ static int __devinit device_irq_init(struct pm860x_chip *chip,
                                 : chip->companion;
         unsigned char status_buf[INT_STATUS_NUM];
         unsigned long flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT;
-        struct irq_desc *desc;
         int i, data, mask, ret = -EINVAL;
         int __irq;
 
@@ -468,19 +467,17 @@ static int __devinit device_irq_init(struct pm860x_chip *chip,
         if (!chip->core_irq)
                 goto out;
 
-        desc = irq_to_desc(chip->core_irq);
-
         /* register IRQ by genirq */
         for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) {
                 __irq = i + chip->irq_base;
-                set_irq_chip_data(__irq, chip);
-                set_irq_chip_and_handler(__irq, &pm860x_irq_chip,
+                irq_set_chip_data(__irq, chip);
+                irq_set_chip_and_handler(__irq, &pm860x_irq_chip,
                                          handle_edge_irq);
-                set_irq_nested_thread(__irq, 1);
+                irq_set_nested_thread(__irq, 1);
 #ifdef CONFIG_ARM
                 set_irq_flags(__irq, IRQF_VALID);
 #else
-                set_irq_noprobe(__irq);
+                irq_set_noprobe(__irq);
 #endif
         }
 
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index a9a1af49281e..e986f91fff9c 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -133,6 +133,7 @@ config TPS6105X
         tristate "TPS61050/61052 Boost Converters"
         depends on I2C
         select REGULATOR
+        select MFD_CORE
         select REGULATOR_FIXED_VOLTAGE
         help
           This option enables a driver for the TP61050/TPS61052
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 47f5709f3828..ef489f253402 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -63,7 +63,7 @@ obj-$(CONFIG_UCB1400_CORE)	+= ucb1400_core.o
 obj-$(CONFIG_PMIC_DA903X)       += da903x.o
 max8925-objs                    := max8925-core.o max8925-i2c.o
 obj-$(CONFIG_MFD_MAX8925)       += max8925.o
-obj-$(CONFIG_MFD_MAX8997)       += max8997.o
+obj-$(CONFIG_MFD_MAX8997)       += max8997.o max8997-irq.o
 obj-$(CONFIG_MFD_MAX8998)       += max8998.o max8998-irq.o
 
 pcf50633-objs                   := pcf50633-core.o pcf50633-irq.o
diff --git a/drivers/mfd/ab3550-core.c b/drivers/mfd/ab3550-core.c
index c12d04285226..ff86acf3e6bd 100644
--- a/drivers/mfd/ab3550-core.c
+++ b/drivers/mfd/ab3550-core.c
@@ -668,7 +668,7 @@ static int ab3550_startup_irq_enabled(struct device *dev, unsigned int irq)
         struct ab3550_platform_data *plf_data;
         bool val;
 
-        ab = get_irq_chip_data(irq);
+        ab = irq_get_chip_data(irq);
         plf_data = ab->i2c_client[0]->dev.platform_data;
         irq -= plf_data->irq.base;
         val = ((ab->startup_events[irq / 8] & BIT(irq % 8)) != 0);
@@ -1296,14 +1296,14 @@ static int __init ab3550_probe(struct i2c_client *client,
                 unsigned int irq;
 
                 irq = ab3550_plf_data->irq.base + i;
-                set_irq_chip_data(irq, ab);
-                set_irq_chip_and_handler(irq, &ab3550_irq_chip,
-                        handle_simple_irq);
-                set_irq_nested_thread(irq, 1);
+                irq_set_chip_data(irq, ab);
+                irq_set_chip_and_handler(irq, &ab3550_irq_chip,
+                                         handle_simple_irq);
+                irq_set_nested_thread(irq, 1);
 #ifdef CONFIG_ARM
                 set_irq_flags(irq, IRQF_VALID);
 #else
-                set_irq_noprobe(irq);
+                irq_set_noprobe(irq);
 #endif
         }
 
diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c
index 6e185b272d00..62e33e2258d4 100644
--- a/drivers/mfd/ab8500-core.c
+++ b/drivers/mfd/ab8500-core.c
@@ -334,14 +334,14 @@ static int ab8500_irq_init(struct ab8500 *ab8500)
         int irq;
 
         for (irq = base; irq < base + AB8500_NR_IRQS; irq++) {
-                set_irq_chip_data(irq, ab8500);
-                set_irq_chip_and_handler(irq, &ab8500_irq_chip,
+                irq_set_chip_data(irq, ab8500);
+                irq_set_chip_and_handler(irq, &ab8500_irq_chip,
                                          handle_simple_irq);
-                set_irq_nested_thread(irq, 1);
+                irq_set_nested_thread(irq, 1);
 #ifdef CONFIG_ARM
                 set_irq_flags(irq, IRQF_VALID);
 #else
-                set_irq_noprobe(irq);
+                irq_set_noprobe(irq);
 #endif
         }
 
@@ -357,8 +357,8 @@ static void ab8500_irq_remove(struct ab8500 *ab8500)
 #ifdef CONFIG_ARM
                 set_irq_flags(irq, 0);
 #endif
-                set_irq_chip_and_handler(irq, NULL, NULL);
-                set_irq_chip_data(irq, NULL);
+                irq_set_chip_and_handler(irq, NULL, NULL);
+                irq_set_chip_data(irq, NULL);
         }
 }
 
diff --git a/drivers/mfd/asic3.c b/drivers/mfd/asic3.c
index 0241f08fc00d..d4a851c6b5bf 100644
--- a/drivers/mfd/asic3.c
+++ b/drivers/mfd/asic3.c
@@ -139,13 +139,12 @@ static void asic3_irq_flip_edge(struct asic3 *asic,
 
 static void asic3_irq_demux(unsigned int irq, struct irq_desc *desc)
 {
+        struct asic3 *asic = irq_desc_get_handler_data(desc);
+        struct irq_data *data = irq_desc_get_irq_data(desc);
         int iter, i;
         unsigned long flags;
-        struct asic3 *asic;
-
-        desc->irq_data.chip->irq_ack(&desc->irq_data);
 
-        asic = get_irq_data(irq);
+        data->chip->irq_ack(irq_data);
 
         for (iter = 0 ; iter < MAX_ASIC_ISR_LOOPS; iter++) {
                 u32 status;
@@ -188,8 +187,7 @@ static void asic3_irq_demux(unsigned int irq, struct irq_desc *desc)
                                         irqnr = asic->irq_base +
                                                 (ASIC3_GPIOS_PER_BANK * bank)
                                                 + i;
-                                        desc = irq_to_desc(irqnr);
-                                        desc->handle_irq(irqnr, desc);
+                                        generic_handle_irq(irqnr);
                                         if (asic->irq_bothedge[bank] & bit)
                                                 asic3_irq_flip_edge(asic, base,
                                                                     bit);
@@ -200,11 +198,8 @@ static void asic3_irq_demux(unsigned int irq, struct irq_desc *desc)
                 /* Handle remaining IRQs in the status register */
                 for (i = ASIC3_NUM_GPIOS; i < ASIC3_NR_IRQS; i++) {
                         /* They start at bit 4 and go up */
-                        if (status & (1 << (i - ASIC3_NUM_GPIOS + 4))) {
-                                desc = irq_to_desc(asic->irq_base + i);
-                                desc->handle_irq(asic->irq_base + i,
-                                                 desc);
-                        }
+                        if (status & (1 << (i - ASIC3_NUM_GPIOS + 4)))
+                                generic_handle_irq(asic->irq_base + i);
                 }
         }
 
@@ -393,21 +388,21 @@ static int __init asic3_irq_probe(struct platform_device *pdev)
 
         for (irq = irq_base; irq < irq_base + ASIC3_NR_IRQS; irq++) {
                 if (irq < asic->irq_base + ASIC3_NUM_GPIOS)
-                        set_irq_chip(irq, &asic3_gpio_irq_chip);
+                        irq_set_chip(irq, &asic3_gpio_irq_chip);
                 else
-                        set_irq_chip(irq, &asic3_irq_chip);
+                        irq_set_chip(irq, &asic3_irq_chip);
 
-                set_irq_chip_data(irq, asic);
-                set_irq_handler(irq, handle_level_irq);
+                irq_set_chip_data(irq, asic);
+                irq_set_handler(irq, handle_level_irq);
                 set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
         }
 
         asic3_write_register(asic, ASIC3_OFFSET(INTR, INT_MASK),
                              ASIC3_INTMASK_GINTMASK);
 
-        set_irq_chained_handler(asic->irq_nr, asic3_irq_demux);
-        set_irq_type(asic->irq_nr, IRQ_TYPE_EDGE_RISING);
-        set_irq_data(asic->irq_nr, asic);
+        irq_set_chained_handler(asic->irq_nr, asic3_irq_demux);
+        irq_set_irq_type(asic->irq_nr, IRQ_TYPE_EDGE_RISING);
+        irq_set_handler_data(asic->irq_nr, asic);
 
         return 0;
 }
@@ -421,11 +416,10 @@ static void asic3_irq_remove(struct platform_device *pdev)
 
         for (irq = irq_base; irq < irq_base + ASIC3_NR_IRQS; irq++) {
                 set_irq_flags(irq, 0);
-                set_irq_handler(irq, NULL);
-                set_irq_chip(irq, NULL);
-                set_irq_chip_data(irq, NULL);
+                irq_set_chip_and_handler(irq, NULL, NULL);
+                irq_set_chip_data(irq, NULL);
         }
-        set_irq_chained_handler(asic->irq_nr, NULL);
+        irq_set_chained_handler(asic->irq_nr, NULL);
 }
 
 /* GPIOs */
diff --git a/drivers/mfd/cs5535-mfd.c b/drivers/mfd/cs5535-mfd.c
index 886a06871065..155fa0407882 100644
--- a/drivers/mfd/cs5535-mfd.c
+++ b/drivers/mfd/cs5535-mfd.c
@@ -27,6 +27,7 @@
 #include <linux/mfd/core.h>
 #include <linux/module.h>
 #include <linux/pci.h>
+#include <asm/olpc.h>
 
 #define DRV_NAME "cs5535-mfd"
 
@@ -111,6 +112,20 @@ static __devinitdata struct mfd_cell cs5535_mfd_cells[] = {
         },
 };
 
+#ifdef CONFIG_OLPC
+static void __devinit cs5535_clone_olpc_cells(void)
+{
+        const char *acpi_clones[] = { "olpc-xo1-pm-acpi", "olpc-xo1-sci-acpi" };
+
+        if (!machine_is_olpc())
+                return;
+
+        mfd_clone_cell("cs5535-acpi", acpi_clones, ARRAY_SIZE(acpi_clones));
+}
+#else
+static void cs5535_clone_olpc_cells(void) { }
+#endif
+
 static int __devinit cs5535_mfd_probe(struct pci_dev *pdev,
                 const struct pci_device_id *id)
 {
@@ -139,6 +154,7 @@ static int __devinit cs5535_mfd_probe(struct pci_dev *pdev,
                 dev_err(&pdev->dev, "MFD add devices failed: %d\n", err);
                 goto err_disable;
         }
+        cs5535_clone_olpc_cells();
 
         dev_info(&pdev->dev, "%zu devices registered.\n",
                         ARRAY_SIZE(cs5535_mfd_cells));
diff --git a/drivers/mfd/ezx-pcap.c b/drivers/mfd/ezx-pcap.c
index 9e2d8dd5f9e5..f2f4029e21a0 100644
--- a/drivers/mfd/ezx-pcap.c
+++ b/drivers/mfd/ezx-pcap.c
@@ -162,6 +162,7 @@ static void pcap_unmask_irq(struct irq_data *d)
 
 static struct irq_chip pcap_irq_chip = {
         .name           = "pcap",
+        .irq_disable    = pcap_mask_irq,
         .irq_mask       = pcap_mask_irq,
         .irq_unmask     = pcap_unmask_irq,
 };
@@ -196,17 +197,8 @@ static void pcap_isr_work(struct work_struct *work)
                 local_irq_disable();
                 service = isr & ~msr;
                 for (irq = pcap->irq_base; service; service >>= 1, irq++) {
-                        if (service & 1) {
-                                struct irq_desc *desc = irq_to_desc(irq);
-
-                                if (WARN(!desc, "Invalid PCAP IRQ %d\n", irq))
-                                        break;
-
-                                if (desc->status & IRQ_DISABLED)
-                                        note_interrupt(irq, desc, IRQ_NONE);
-                                else
-                                        desc->handle_irq(irq, desc);
-                        }
+                        if (service & 1)
+                                generic_handle_irq(irq);
                 }
                 local_irq_enable();
                 ezx_pcap_write(pcap, PCAP_REG_MSR, pcap->msr);
@@ -215,7 +207,7 @@ static void pcap_isr_work(struct work_struct *work)
 
 static void pcap_irq_handler(unsigned int irq, struct irq_desc *desc)
 {
-        struct pcap_chip *pcap = get_irq_data(irq);
+        struct pcap_chip *pcap = irq_get_handler_data(irq);
 
         desc->irq_data.chip->irq_ack(&desc->irq_data);
         queue_work(pcap->workqueue, &pcap->isr_work);
@@ -419,7 +411,7 @@ static int __devexit ezx_pcap_remove(struct spi_device *spi)
 
         /* cleanup irqchip */
         for (i = pcap->irq_base; i < (pcap->irq_base + PCAP_NIRQS); i++)
-                set_irq_chip_and_handler(i, NULL, NULL);
+                irq_set_chip_and_handler(i, NULL, NULL);
 
         destroy_workqueue(pcap->workqueue);
 
@@ -476,12 +468,12 @@ static int __devinit ezx_pcap_probe(struct spi_device *spi)
 
         /* setup irq chip */
         for (i = pcap->irq_base; i < (pcap->irq_base + PCAP_NIRQS); i++) {
-                set_irq_chip_and_handler(i, &pcap_irq_chip, handle_simple_irq);
-                set_irq_chip_data(i, pcap);
+                irq_set_chip_and_handler(i, &pcap_irq_chip, handle_simple_irq);
+                irq_set_chip_data(i, pcap);
 #ifdef CONFIG_ARM
                 set_irq_flags(i, IRQF_VALID);
 #else
-                set_irq_noprobe(i);
+                irq_set_noprobe(i);
 #endif
         }
 
@@ -490,10 +482,10 @@ static int __devinit ezx_pcap_probe(struct spi_device *spi)
         ezx_pcap_write(pcap, PCAP_REG_ISR, PCAP_CLEAR_INTERRUPT_REGISTER);
         pcap->msr = PCAP_MASK_ALL_INTERRUPT;
 
-        set_irq_type(spi->irq, IRQ_TYPE_EDGE_RISING);
-        set_irq_data(spi->irq, pcap);
-        set_irq_chained_handler(spi->irq, pcap_irq_handler);
-        set_irq_wake(spi->irq, 1);
+        irq_set_irq_type(spi->irq, IRQ_TYPE_EDGE_RISING);
+        irq_set_handler_data(spi->irq, pcap);
+        irq_set_chained_handler(spi->irq, pcap_irq_handler);
+        irq_set_irq_wake(spi->irq, 1);
 
         /* ADC */
         adc_irq = pcap_to_irq(pcap, (pdata->config & PCAP_SECOND_PORT) ?
@@ -522,7 +514,7 @@ remove_subdevs:
         free_irq(adc_irq, pcap);
 free_irqchip:
         for (i = pcap->irq_base; i < (pcap->irq_base + PCAP_NIRQS); i++)
-                set_irq_chip_and_handler(i, NULL, NULL);
+                irq_set_chip_and_handler(i, NULL, NULL);
 /* destroy_workqueue: */
         destroy_workqueue(pcap->workqueue);
 free_pcap:
diff --git a/drivers/mfd/htc-egpio.c b/drivers/mfd/htc-egpio.c
index d00b6d1a69e5..bbaec0ccba8f 100644
--- a/drivers/mfd/htc-egpio.c
+++ b/drivers/mfd/htc-egpio.c
@@ -100,7 +100,7 @@ static struct irq_chip egpio_muxed_chip = {
 
 static void egpio_handler(unsigned int irq, struct irq_desc *desc)
 {
-        struct egpio_info *ei = get_irq_data(irq);
+        struct egpio_info *ei = irq_desc_get_handler_data(desc);
         int irqpin;
 
         /* Read current pins. */
@@ -113,9 +113,7 @@ static void egpio_handler(unsigned int irq, struct irq_desc *desc)
         for_each_set_bit(irqpin, &readval, ei->nirqs) {
                 /* Run irq handler */
                 pr_debug("got IRQ %d\n", irqpin);
-                irq = ei->irq_start + irqpin;
-                desc = irq_to_desc(irq);
-                desc->handle_irq(irq, desc);
+                generic_handle_irq(ei->irq_start + irqpin);
         }
 }
 
@@ -346,14 +344,14 @@ static int __init egpio_probe(struct platform_device *pdev)
                         ei->ack_write = 0;
                 irq_end = ei->irq_start + ei->nirqs;
                 for (irq = ei->irq_start; irq < irq_end; irq++) {
-                        set_irq_chip(irq, &egpio_muxed_chip);
-                        set_irq_chip_data(irq, ei);
-                        set_irq_handler(irq, handle_simple_irq);
+                        irq_set_chip_and_handler(irq, &egpio_muxed_chip,
+                                                 handle_simple_irq);
+                        irq_set_chip_data(irq, ei);
                         set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
                 }
-                set_irq_type(ei->chained_irq, IRQ_TYPE_EDGE_RISING);
-                set_irq_data(ei->chained_irq, ei);
-                set_irq_chained_handler(ei->chained_irq, egpio_handler);
+                irq_set_irq_type(ei->chained_irq, IRQ_TYPE_EDGE_RISING);
+                irq_set_handler_data(ei->chained_irq, ei);
+                irq_set_chained_handler(ei->chained_irq, egpio_handler);
                 ack_irqs(ei);
 
                 device_init_wakeup(&pdev->dev, 1);
@@ -375,11 +373,10 @@ static int __exit egpio_remove(struct platform_device *pdev)
         if (ei->chained_irq) {
                 irq_end = ei->irq_start + ei->nirqs;
                 for (irq = ei->irq_start; irq < irq_end; irq++) {
-                        set_irq_chip(irq, NULL);
-                        set_irq_handler(irq, NULL);
+                        irq_set_chip_and_handler(irq, NULL, NULL);
                         set_irq_flags(irq, 0);
                 }
-                set_irq_chained_handler(ei->chained_irq, NULL);
+                irq_set_chained_handler(ei->chained_irq, NULL);
                 device_init_wakeup(&pdev->dev, 0);
         }
         iounmap(ei->base_addr);
diff --git a/drivers/mfd/htc-i2cpld.c b/drivers/mfd/htc-i2cpld.c
index 296ad1562f69..d55065cc324c 100644
--- a/drivers/mfd/htc-i2cpld.c
+++ b/drivers/mfd/htc-i2cpld.c
@@ -58,6 +58,7 @@ struct htcpld_chip {
         uint                    irq_start;
         int                     nirqs;
 
+        unsigned int            flow_type;
         /*
          * Work structure to allow for setting values outside of any
          * possible interrupt context
@@ -97,12 +98,7 @@ static void htcpld_unmask(struct irq_data *data)
 
 static int htcpld_set_type(struct irq_data *data, unsigned int flags)
 {
-        struct irq_desc *d = irq_to_desc(data->irq);
-
-        if (!d) {
-                pr_err("HTCPLD invalid IRQ: %d\n", data->irq);
-                return -EINVAL;
-        }
+        struct htcpld_chip *chip = irq_data_get_irq_chip_data(data);
 
         if (flags & ~IRQ_TYPE_SENSE_MASK)
                 return -EINVAL;
@@ -111,9 +107,7 @@ static int htcpld_set_type(struct irq_data *data, unsigned int flags)
         if (flags & (IRQ_TYPE_LEVEL_LOW|IRQ_TYPE_LEVEL_HIGH))
                 return -EINVAL;
 
-        d->status &= ~IRQ_TYPE_SENSE_MASK;
-        d->status |= flags;
-
+        chip->flow_type = flags;
         return 0;
 }
 
@@ -135,7 +129,6 @@ static irqreturn_t htcpld_handler(int irq, void *dev)
         unsigned int i;
         unsigned long flags;
         int irqpin;
-        struct irq_desc *desc;
 
         if (!htcpld) {
                 pr_debug("htcpld is null in ISR\n");
@@ -195,23 +188,19 @@ static irqreturn_t htcpld_handler(int irq, void *dev)
                  * associated interrupts.
                  */
                 for (irqpin = 0; irqpin < chip->nirqs; irqpin++) {
-                        unsigned oldb, newb;
-                        int flags;
+                        unsigned oldb, newb, type = chip->flow_type;
 
                         irq = chip->irq_start + irqpin;
-                        desc = irq_to_desc(irq);
-                        flags = desc->status;
 
                         /* Run the IRQ handler, but only if the bit value
                          * changed, and the proper flags are set */
                         oldb = (old_val >> irqpin) & 1;
                         newb = (uval >> irqpin) & 1;
 
-                        if ((!oldb && newb && (flags & IRQ_TYPE_EDGE_RISING)) ||
-                            (oldb && !newb &&
-                             (flags & IRQ_TYPE_EDGE_FALLING))) {
+                        if ((!oldb && newb && (type & IRQ_TYPE_EDGE_RISING)) ||
+                            (oldb && !newb && (type & IRQ_TYPE_EDGE_FALLING))) {
                                 pr_debug("fire IRQ %d\n", irqpin);
-                                desc->handle_irq(irq, desc);
+                                generic_handle_irq(irq);
                         }
                 }
         }
@@ -359,13 +348,13 @@ static int __devinit htcpld_setup_chip_irq(
         /* Setup irq handlers */
         irq_end = chip->irq_start + chip->nirqs;
         for (irq = chip->irq_start; irq < irq_end; irq++) {
-                set_irq_chip(irq, &htcpld_muxed_chip);
-                set_irq_chip_data(irq, chip);
-                set_irq_handler(irq, handle_simple_irq);
+                irq_set_chip_and_handler(irq, &htcpld_muxed_chip,
+                                         handle_simple_irq);
+                irq_set_chip_data(irq, chip);
 #ifdef CONFIG_ARM
                 set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 #else
-                set_irq_probe(irq);
+                irq_set_probe(irq);
 #endif
         }
 
diff --git a/drivers/mfd/jz4740-adc.c b/drivers/mfd/jz4740-adc.c
index aa518b9beaf5..a0bd0cf05af3 100644
--- a/drivers/mfd/jz4740-adc.c
+++ b/drivers/mfd/jz4740-adc.c
@@ -112,7 +112,7 @@ static struct irq_chip jz4740_adc_irq_chip = {
 
 static void jz4740_adc_irq_demux(unsigned int irq, struct irq_desc *desc)
 {
-        struct jz4740_adc *adc = get_irq_desc_data(desc);
+        struct jz4740_adc *adc = irq_desc_get_handler_data(desc);
         uint8_t status;
         unsigned int i;
 
@@ -310,13 +310,13 @@ static int __devinit jz4740_adc_probe(struct platform_device *pdev)
         platform_set_drvdata(pdev, adc);
 
         for (irq = adc->irq_base; irq < adc->irq_base + 5; ++irq) {
-                set_irq_chip_data(irq, adc);
-                set_irq_chip_and_handler(irq, &jz4740_adc_irq_chip,
-                    handle_level_irq);
+                irq_set_chip_data(irq, adc);
+                irq_set_chip_and_handler(irq, &jz4740_adc_irq_chip,
+                                         handle_level_irq);
         }
 
-        set_irq_data(adc->irq, adc);
-        set_irq_chained_handler(adc->irq, jz4740_adc_irq_demux);
+        irq_set_handler_data(adc->irq, adc);
+        irq_set_chained_handler(adc->irq, jz4740_adc_irq_demux);
 
         writeb(0x00, adc->base + JZ_REG_ADC_ENABLE);
         writeb(0xff, adc->base + JZ_REG_ADC_CTRL);
@@ -347,8 +347,8 @@ static int __devexit jz4740_adc_remove(struct platform_device *pdev)
 
         mfd_remove_devices(&pdev->dev);
 
-        set_irq_data(adc->irq, NULL);
-        set_irq_chained_handler(adc->irq, NULL);
+        irq_set_handler_data(adc->irq, NULL);
+        irq_set_chained_handler(adc->irq, NULL);
 
         iounmap(adc->base);
         release_mem_region(adc->mem->start, resource_size(adc->mem));
diff --git a/drivers/mfd/max8925-core.c b/drivers/mfd/max8925-core.c
index 0e998dc4e7d8..58cc5fdde016 100644
--- a/drivers/mfd/max8925-core.c
+++ b/drivers/mfd/max8925-core.c
@@ -517,7 +517,6 @@ static int max8925_irq_init(struct max8925_chip *chip, int irq,
                             struct max8925_platform_data *pdata)
 {
         unsigned long flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT;
-        struct irq_desc *desc;
         int i, ret;
         int __irq;
 
@@ -544,19 +543,18 @@ static int max8925_irq_init(struct max8925_chip *chip, int irq,
         mutex_init(&chip->irq_lock);
         chip->core_irq = irq;
         chip->irq_base = pdata->irq_base;
-        desc = irq_to_desc(chip->core_irq);
 
         /* register with genirq */
         for (i = 0; i < ARRAY_SIZE(max8925_irqs); i++) {
                 __irq = i + chip->irq_base;
-                set_irq_chip_data(__irq, chip);
-                set_irq_chip_and_handler(__irq, &max8925_irq_chip,
+                irq_set_chip_data(__irq, chip);
+                irq_set_chip_and_handler(__irq, &max8925_irq_chip,
                                          handle_edge_irq);
-                set_irq_nested_thread(__irq, 1);
+                irq_set_nested_thread(__irq, 1);
 #ifdef CONFIG_ARM
                 set_irq_flags(__irq, IRQF_VALID);
 #else
-                set_irq_noprobe(__irq);
+                irq_set_noprobe(__irq);
 #endif
         }
         if (!irq) {
diff --git a/drivers/mfd/max8997-irq.c b/drivers/mfd/max8997-irq.c
new file mode 100644
index 000000000000..638bf7e4d3b3
--- /dev/null
+++ b/drivers/mfd/max8997-irq.c
@@ -0,0 +1,377 @@
+/*
+ * max8997-irq.c - Interrupt controller support for MAX8997
+ *
+ * Copyright (C) 2011 Samsung Electronics Co.Ltd
+ * MyungJoo Ham <myungjoo.ham@samsung.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
+ *
+ * This driver is based on max8998-irq.c
+ */
+
+#include <linux/err.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/mfd/max8997.h>
+#include <linux/mfd/max8997-private.h>
+
+static const u8 max8997_mask_reg[] = {
+        [PMIC_INT1] = MAX8997_REG_INT1MSK,
+        [PMIC_INT2] = MAX8997_REG_INT2MSK,
+        [PMIC_INT3] = MAX8997_REG_INT3MSK,
+        [PMIC_INT4] = MAX8997_REG_INT4MSK,
+        [FUEL_GAUGE] = MAX8997_REG_INVALID,
+        [MUIC_INT1] = MAX8997_MUIC_REG_INTMASK1,
+        [MUIC_INT2] = MAX8997_MUIC_REG_INTMASK2,
+        [MUIC_INT3] = MAX8997_MUIC_REG_INTMASK3,
+        [GPIO_LOW] = MAX8997_REG_INVALID,
+        [GPIO_HI] = MAX8997_REG_INVALID,
+        [FLASH_STATUS] = MAX8997_REG_INVALID,
+};
+
+static struct i2c_client *get_i2c(struct max8997_dev *max8997,
+                                enum max8997_irq_source src)
+{
+        switch (src) {
+        case PMIC_INT1 ... PMIC_INT4:
+                return max8997->i2c;
+        case FUEL_GAUGE:
+                return NULL;
+        case MUIC_INT1 ... MUIC_INT3:
+                return max8997->muic;
+        case GPIO_LOW ... GPIO_HI:
+                return max8997->i2c;
+        case FLASH_STATUS:
+                return max8997->i2c;
+        default:
+                return ERR_PTR(-EINVAL);
+        }
+
+        return ERR_PTR(-EINVAL);
+}
+
+struct max8997_irq_data {
+        int mask;
+        enum max8997_irq_source group;
+};
+
+#define DECLARE_IRQ(idx, _group, _mask)         \
+        [(idx)] = { .group = (_group), .mask = (_mask) }
+static const struct max8997_irq_data max8997_irqs[] = {
+        DECLARE_IRQ(MAX8997_PMICIRQ_PWRONR,     PMIC_INT1, 1 << 0),
+        DECLARE_IRQ(MAX8997_PMICIRQ_PWRONF,     PMIC_INT1, 1 << 1),
+        DECLARE_IRQ(MAX8997_PMICIRQ_PWRON1SEC,  PMIC_INT1, 1 << 3),
+        DECLARE_IRQ(MAX8997_PMICIRQ_JIGONR,     PMIC_INT1, 1 << 4),
+        DECLARE_IRQ(MAX8997_PMICIRQ_JIGONF,     PMIC_INT1, 1 << 5),
+        DECLARE_IRQ(MAX8997_PMICIRQ_LOWBAT2,    PMIC_INT1, 1 << 6),
+        DECLARE_IRQ(MAX8997_PMICIRQ_LOWBAT1,    PMIC_INT1, 1 << 7),
+
+        DECLARE_IRQ(MAX8997_PMICIRQ_JIGR,       PMIC_INT2, 1 << 0),
+        DECLARE_IRQ(MAX8997_PMICIRQ_JIGF,       PMIC_INT2, 1 << 1),
+        DECLARE_IRQ(MAX8997_PMICIRQ_MR,         PMIC_INT2, 1 << 2),
+        DECLARE_IRQ(MAX8997_PMICIRQ_DVS1OK,     PMIC_INT2, 1 << 3),
+        DECLARE_IRQ(MAX8997_PMICIRQ_DVS2OK,     PMIC_INT2, 1 << 4),
+        DECLARE_IRQ(MAX8997_PMICIRQ_DVS3OK,     PMIC_INT2, 1 << 5),
+        DECLARE_IRQ(MAX8997_PMICIRQ_DVS4OK,     PMIC_INT2, 1 << 6),
+
+        DECLARE_IRQ(MAX8997_PMICIRQ_CHGINS,     PMIC_INT3, 1 << 0),
+        DECLARE_IRQ(MAX8997_PMICIRQ_CHGRM,      PMIC_INT3, 1 << 1),
+        DECLARE_IRQ(MAX8997_PMICIRQ_DCINOVP,    PMIC_INT3, 1 << 2),
+        DECLARE_IRQ(MAX8997_PMICIRQ_TOPOFFR,    PMIC_INT3, 1 << 3),
+        DECLARE_IRQ(MAX8997_PMICIRQ_CHGRSTF,    PMIC_INT3, 1 << 5),
+        DECLARE_IRQ(MAX8997_PMICIRQ_MBCHGTMEXPD,        PMIC_INT3, 1 << 7),
+
+        DECLARE_IRQ(MAX8997_PMICIRQ_RTC60S,     PMIC_INT4, 1 << 0),
+        DECLARE_IRQ(MAX8997_PMICIRQ_RTCA1,      PMIC_INT4, 1 << 1),
+        DECLARE_IRQ(MAX8997_PMICIRQ_RTCA2,      PMIC_INT4, 1 << 2),
+        DECLARE_IRQ(MAX8997_PMICIRQ_SMPL_INT,   PMIC_INT4, 1 << 3),
+        DECLARE_IRQ(MAX8997_PMICIRQ_RTC1S,      PMIC_INT4, 1 << 4),
+        DECLARE_IRQ(MAX8997_PMICIRQ_WTSR,       PMIC_INT4, 1 << 5),
+
+        DECLARE_IRQ(MAX8997_MUICIRQ_ADCError,   MUIC_INT1, 1 << 2),
+        DECLARE_IRQ(MAX8997_MUICIRQ_ADCLow,     MUIC_INT1, 1 << 1),
+        DECLARE_IRQ(MAX8997_MUICIRQ_ADC,        MUIC_INT1, 1 << 0),
+
+        DECLARE_IRQ(MAX8997_MUICIRQ_VBVolt,     MUIC_INT2, 1 << 4),
+        DECLARE_IRQ(MAX8997_MUICIRQ_DBChg,      MUIC_INT2, 1 << 3),
+        DECLARE_IRQ(MAX8997_MUICIRQ_DCDTmr,     MUIC_INT2, 1 << 2),
+        DECLARE_IRQ(MAX8997_MUICIRQ_ChgDetRun,  MUIC_INT2, 1 << 1),
+        DECLARE_IRQ(MAX8997_MUICIRQ_ChgTyp,     MUIC_INT2, 1 << 0),
+
+        DECLARE_IRQ(MAX8997_MUICIRQ_OVP,        MUIC_INT3, 1 << 2),
+};
+
+static void max8997_irq_lock(struct irq_data *data)
+{
+        struct max8997_dev *max8997 = irq_get_chip_data(data->irq);
+
+        mutex_lock(&max8997->irqlock);
+}
+
+static void max8997_irq_sync_unlock(struct irq_data *data)
+{
+        struct max8997_dev *max8997 = irq_get_chip_data(data->irq);
+        int i;
+
+        for (i = 0; i < MAX8997_IRQ_GROUP_NR; i++) {
+                u8 mask_reg = max8997_mask_reg[i];
+                struct i2c_client *i2c = get_i2c(max8997, i);
+
+                if (mask_reg == MAX8997_REG_INVALID ||
+                                IS_ERR_OR_NULL(i2c))
+                        continue;
+                max8997->irq_masks_cache[i] = max8997->irq_masks_cur[i];
+
+                max8997_write_reg(i2c, max8997_mask_reg[i],
+                                max8997->irq_masks_cur[i]);
+        }
+
+        mutex_unlock(&max8997->irqlock);
+}
+
+static const inline struct max8997_irq_data *
+irq_to_max8997_irq(struct max8997_dev *max8997, int irq)
+{
+        return &max8997_irqs[irq - max8997->irq_base];
+}
+
+static void max8997_irq_mask(struct irq_data *data)
+{
+        struct max8997_dev *max8997 = irq_get_chip_data(data->irq);
+        const struct max8997_irq_data *irq_data = irq_to_max8997_irq(max8997,
+                                                                data->irq);
+
+        max8997->irq_masks_cur[irq_data->group] |= irq_data->mask;
+}
+
+static void max8997_irq_unmask(struct irq_data *data)
+{
+        struct max8997_dev *max8997 = irq_get_chip_data(data->irq);
+        const struct max8997_irq_data *irq_data = irq_to_max8997_irq(max8997,
+                                                                data->irq);
+
+        max8997->irq_masks_cur[irq_data->group] &= ~irq_data->mask;
+}
+
+static struct irq_chip max8997_irq_chip = {
+        .name                   = "max8997",
+        .irq_bus_lock           = max8997_irq_lock,
+        .irq_bus_sync_unlock    = max8997_irq_sync_unlock,
+        .irq_mask               = max8997_irq_mask,
+        .irq_unmask             = max8997_irq_unmask,
+};
+
+#define MAX8997_IRQSRC_PMIC             (1 << 1)
+#define MAX8997_IRQSRC_FUELGAUGE        (1 << 2)
+#define MAX8997_IRQSRC_MUIC             (1 << 3)
+#define MAX8997_IRQSRC_GPIO             (1 << 4)
+#define MAX8997_IRQSRC_FLASH            (1 << 5)
+static irqreturn_t max8997_irq_thread(int irq, void *data)
+{
+        struct max8997_dev *max8997 = data;
+        u8 irq_reg[MAX8997_IRQ_GROUP_NR] = {};
+        u8 irq_src;
+        int ret;
+        int i;
+
+        ret = max8997_read_reg(max8997->i2c, MAX8997_REG_INTSRC, &irq_src);
+        if (ret < 0) {
+                dev_err(max8997->dev, "Failed to read interrupt source: %d\n",
+                                ret);
+                return IRQ_NONE;
+        }
+
+        if (irq_src & MAX8997_IRQSRC_PMIC) {
+                /* PMIC INT1 ~ INT4 */
+                max8997_bulk_read(max8997->i2c, MAX8997_REG_INT1, 4,
+                                &irq_reg[PMIC_INT1]);
+        }
+        if (irq_src & MAX8997_IRQSRC_FUELGAUGE) {
+                /*
+                 * TODO: FUEL GAUGE
+                 *
+                 * This is to be supported by Max17042 driver. When
+                 * an interrupt incurs here, it should be relayed to a
+                 * Max17042 device that is connected (probably by
+                 * platform-data). However, we do not have interrupt
+                 * handling in Max17042 driver currently. The Max17042 IRQ
+                 * driver should be ready to be used as a stand-alone device and
+                 * a Max8997-dependent device. Because it is not ready in
+                 * Max17042-side and it is not too critical in operating
+                 * Max8997, we do not implement this in initial releases.
+                 */
+                irq_reg[FUEL_GAUGE] = 0;
+        }
+        if (irq_src & MAX8997_IRQSRC_MUIC) {
+                /* MUIC INT1 ~ INT3 */
+                max8997_bulk_read(max8997->muic, MAX8997_MUIC_REG_INT1, 3,
+                                &irq_reg[MUIC_INT1]);
+        }
+        if (irq_src & MAX8997_IRQSRC_GPIO) {
+                /* GPIO Interrupt */
+                u8 gpio_info[MAX8997_NUM_GPIO];
+
+                irq_reg[GPIO_LOW] = 0;
+                irq_reg[GPIO_HI] = 0;
+
+                max8997_bulk_read(max8997->i2c, MAX8997_REG_GPIOCNTL1,
+                                MAX8997_NUM_GPIO, gpio_info);
+                for (i = 0; i < MAX8997_NUM_GPIO; i++) {
+                        bool interrupt = false;
+
+                        switch (gpio_info[i] & MAX8997_GPIO_INT_MASK) {
+                        case MAX8997_GPIO_INT_BOTH:
+                                if (max8997->gpio_status[i] != gpio_info[i])
+                                        interrupt = true;
+                                break;
+                        case MAX8997_GPIO_INT_RISE:
+                                if ((max8997->gpio_status[i] != gpio_info[i]) &&
+                                    (gpio_info[i] & MAX8997_GPIO_DATA_MASK))
+                                        interrupt = true;
+                                break;
+                        case MAX8997_GPIO_INT_FALL:
+                                if ((max8997->gpio_status[i] != gpio_info[i]) &&
+                                    !(gpio_info[i] & MAX8997_GPIO_DATA_MASK))
+                                        interrupt = true;
+                                break;
+                        default:
+                                break;
+                        }
+
+                        if (interrupt) {
+                                if (i < 8)
+                                        irq_reg[GPIO_LOW] |= (1 << i);
+                                else
+                                        irq_reg[GPIO_HI] |= (1 << (i - 8));
+                        }
+
+                }
+        }
+        if (irq_src & MAX8997_IRQSRC_FLASH) {
+                /* Flash Status Interrupt */
+                ret = max8997_read_reg(max8997->i2c, MAX8997_REG_FLASHSTATUS,
+                                &irq_reg[FLASH_STATUS]);
+        }
+
+        /* Apply masking */
+        for (i = 0; i < MAX8997_IRQ_GROUP_NR; i++)
+                irq_reg[i] &= ~max8997->irq_masks_cur[i];
+
+        /* Report */
+        for (i = 0; i < MAX8997_IRQ_NR; i++) {
+                if (irq_reg[max8997_irqs[i].group] & max8997_irqs[i].mask)
+                        handle_nested_irq(max8997->irq_base + i);
+        }
+
+        return IRQ_HANDLED;
+}
+
+int max8997_irq_resume(struct max8997_dev *max8997)
+{
+        if (max8997->irq && max8997->irq_base)
+                max8997_irq_thread(max8997->irq_base, max8997);
+        return 0;
+}
+
+int max8997_irq_init(struct max8997_dev *max8997)
+{
+        int i;
+        int cur_irq;
+        int ret;
+        u8 val;
+
+        if (!max8997->irq) {
+                dev_warn(max8997->dev, "No interrupt specified.\n");
+                max8997->irq_base = 0;
+                return 0;
+        }
+
+        if (!max8997->irq_base) {
+                dev_err(max8997->dev, "No interrupt base specified.\n");
+                return 0;
+        }
+
+        mutex_init(&max8997->irqlock);
+
+        /* Mask individual interrupt sources */
+        for (i = 0; i < MAX8997_IRQ_GROUP_NR; i++) {
+                struct i2c_client *i2c;
+
+                max8997->irq_masks_cur[i] = 0xff;
+                max8997->irq_masks_cache[i] = 0xff;
+                i2c = get_i2c(max8997, i);
+
+                if (IS_ERR_OR_NULL(i2c))
+                        continue;
+                if (max8997_mask_reg[i] == MAX8997_REG_INVALID)
+                        continue;
+
+                max8997_write_reg(i2c, max8997_mask_reg[i], 0xff);
+        }
+
+        for (i = 0; i < MAX8997_NUM_GPIO; i++) {
+                max8997->gpio_status[i] = (max8997_read_reg(max8997->i2c,
+                                                MAX8997_REG_GPIOCNTL1 + i,
+                                                &val)
+                                        & MAX8997_GPIO_DATA_MASK) ?
+                                        true : false;
+        }
+
+        /* Register with genirq */
+        for (i = 0; i < MAX8997_IRQ_NR; i++) {
+                cur_irq = i + max8997->irq_base;
+                irq_set_chip_data(cur_irq, max8997);
+                irq_set_chip_and_handler(cur_irq, &max8997_irq_chip,
+                                handle_edge_irq);
+                irq_set_nested_thread(cur_irq, 1);
+#ifdef CONFIG_ARM
+                set_irq_flags(cur_irq, IRQF_VALID);
+#else
+                irq_set_noprobe(cur_irq);
+#endif
+        }
+
+        ret = request_threaded_irq(max8997->irq, NULL, max8997_irq_thread,
+                        IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+                        "max8997-irq", max8997);
+
+        if (ret) {
+                dev_err(max8997->dev, "Failed to request IRQ %d: %d\n",
+                                max8997->irq, ret);
+                return ret;
+        }
+
+        if (!max8997->ono)
+                return 0;
+
+        ret = request_threaded_irq(max8997->ono, NULL, max8997_irq_thread,
+                        IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING |
+                        IRQF_ONESHOT, "max8997-ono", max8997);
+
+        if (ret)
+                dev_err(max8997->dev, "Failed to request ono-IRQ %d: %d\n",
+                                max8997->ono, ret);
+
+        return 0;
+}
+
+void max8997_irq_exit(struct max8997_dev *max8997)
+{
+        if (max8997->ono)
+                free_irq(max8997->ono, max8997);
+
+        if (max8997->irq)
+                free_irq(max8997->irq, max8997);
+}
diff --git a/drivers/mfd/max8998-irq.c b/drivers/mfd/max8998-irq.c
index 3903e1fbb334..5919710dc9ed 100644
--- a/drivers/mfd/max8998-irq.c
+++ b/drivers/mfd/max8998-irq.c
@@ -224,14 +224,14 @@ int max8998_irq_init(struct max8998_dev *max8998)
         /* register with genirq */
         for (i = 0; i < MAX8998_IRQ_NR; i++) {
                 cur_irq = i + max8998->irq_base;
-                set_irq_chip_data(cur_irq, max8998);
-                set_irq_chip_and_handler(cur_irq, &max8998_irq_chip,
+                irq_set_chip_data(cur_irq, max8998);
+                irq_set_chip_and_handler(cur_irq, &max8998_irq_chip,
                                          handle_edge_irq);
-                set_irq_nested_thread(cur_irq, 1);
+                irq_set_nested_thread(cur_irq, 1);
 #ifdef CONFIG_ARM
                 set_irq_flags(cur_irq, IRQF_VALID);
 #else
-                set_irq_noprobe(cur_irq);
+                irq_set_noprobe(cur_irq);
 #endif
         }
 
diff --git a/drivers/mfd/max8998.c b/drivers/mfd/max8998.c
index c00214257da2..9ec7570f5b81 100644
--- a/drivers/mfd/max8998.c
+++ b/drivers/mfd/max8998.c
@@ -209,7 +209,7 @@ static int max8998_suspend(struct device *dev)
         struct max8998_dev *max8998 = i2c_get_clientdata(i2c);
 
         if (max8998->wakeup)
-                set_irq_wake(max8998->irq, 1);
+                irq_set_irq_wake(max8998->irq, 1);
         return 0;
 }
 
@@ -219,7 +219,7 @@ static int max8998_resume(struct device *dev)
         struct max8998_dev *max8998 = i2c_get_clientdata(i2c);
 
         if (max8998->wakeup)
-                set_irq_wake(max8998->irq, 0);
+                irq_set_irq_wake(max8998->irq, 0);
         /*
          * In LP3974, if IRQ registers are not "read & clear"
          * when it's set during sleep, the interrupt becomes
diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c
index 79eda0264fb2..d01574d98870 100644
--- a/drivers/mfd/mfd-core.c
+++ b/drivers/mfd/mfd-core.c
@@ -184,16 +184,12 @@ void mfd_remove_devices(struct device *parent)
 }
 EXPORT_SYMBOL(mfd_remove_devices);
 
-static int add_shared_platform_device(const char *cell, const char *name)
+int mfd_clone_cell(const char *cell, const char **clones, size_t n_clones)
 {
         struct mfd_cell cell_entry;
         struct device *dev;
         struct platform_device *pdev;
-        int err;
-
-        /* check if we've already registered a device (don't fail if we have) */
-        if (bus_find_device_by_name(&platform_bus_type, NULL, name))
-                return 0;
+        int i;
 
         /* fetch the parent cell's device (should already be registered!) */
         dev = bus_find_device_by_name(&platform_bus_type, NULL, cell);
@@ -206,44 +202,17 @@ static int add_shared_platform_device(const char *cell, const char *name)
 
         WARN_ON(!cell_entry.enable);
 
-        cell_entry.name = name;
-        err = mfd_add_device(pdev->dev.parent, -1, &cell_entry, NULL, 0);
-        if (err)
-                dev_err(dev, "MFD add devices failed: %d\n", err);
-        return err;
-}
-
-int mfd_shared_platform_driver_register(struct platform_driver *drv,
-                const char *cellname)
-{
-        int err;
-
-        err = add_shared_platform_device(cellname, drv->driver.name);
-        if (err)
-                printk(KERN_ERR "failed to add platform device %s\n",
-                                drv->driver.name);
-
-        err = platform_driver_register(drv);
-        if (err)
-                printk(KERN_ERR "failed to add platform driver %s\n",
-                                drv->driver.name);
-
-        return err;
-}
-EXPORT_SYMBOL(mfd_shared_platform_driver_register);
-
-void mfd_shared_platform_driver_unregister(struct platform_driver *drv)
-{
-        struct device *dev;
-
-        dev = bus_find_device_by_name(&platform_bus_type, NULL,
-                        drv->driver.name);
-        if (dev)
-                platform_device_unregister(to_platform_device(dev));
+        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))
+                        dev_err(dev, "failed to create platform device '%s'\n",
+                                        clones[i]);
+        }
 
-        platform_driver_unregister(drv);
+        return 0;
 }
-EXPORT_SYMBOL(mfd_shared_platform_driver_unregister);
+EXPORT_SYMBOL(mfd_clone_cell);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Ian Molton, Dmitry Baryshkov");
diff --git a/drivers/mfd/pcf50633-core.c b/drivers/mfd/pcf50633-core.c
index c1306ed43e3c..c7687f6a78a0 100644
--- a/drivers/mfd/pcf50633-core.c
+++ b/drivers/mfd/pcf50633-core.c
@@ -356,7 +356,7 @@ static int __devexit pcf50633_remove(struct i2c_client *client)
         return 0;
 }
 
-static struct i2c_device_id pcf50633_id_table[] = {
+static const struct i2c_device_id pcf50633_id_table[] = {
         {"pcf50633", 0x73},
         {/* end of list */}
 };
diff --git a/drivers/mfd/rdc321x-southbridge.c b/drivers/mfd/rdc321x-southbridge.c
index 193c940225b5..10dbe6374a89 100644
--- a/drivers/mfd/rdc321x-southbridge.c
+++ b/drivers/mfd/rdc321x-southbridge.c
@@ -97,6 +97,7 @@ static DEFINE_PCI_DEVICE_TABLE(rdc321x_sb_table) = {
         { PCI_DEVICE(PCI_VENDOR_ID_RDC, PCI_DEVICE_ID_RDC_R6030) },
         {}
 };
+MODULE_DEVICE_TABLE(pci, rdc321x_sb_table);
 
 static struct pci_driver rdc321x_sb_driver = {
         .name           = "RDC321x Southbridge",
diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c
index 3e5732b58c49..7ab7746631d4 100644
--- a/drivers/mfd/stmpe.c
+++ b/drivers/mfd/stmpe.c
@@ -762,14 +762,14 @@ static int __devinit stmpe_irq_init(struct stmpe *stmpe)
         int irq;
 
         for (irq = base; irq < base + num_irqs; irq++) {
-                set_irq_chip_data(irq, stmpe);
-                set_irq_chip_and_handler(irq, &stmpe_irq_chip,
+                irq_set_chip_data(irq, stmpe);
+                irq_set_chip_and_handler(irq, &stmpe_irq_chip,
                                          handle_edge_irq);
-                set_irq_nested_thread(irq, 1);
+                irq_set_nested_thread(irq, 1);
 #ifdef CONFIG_ARM
                 set_irq_flags(irq, IRQF_VALID);
 #else
-                set_irq_noprobe(irq);
+                irq_set_noprobe(irq);
 #endif
         }
 
@@ -786,8 +786,8 @@ static void stmpe_irq_remove(struct stmpe *stmpe)
 #ifdef CONFIG_ARM
                 set_irq_flags(irq, 0);
 #endif
-                set_irq_chip_and_handler(irq, NULL, NULL);
-                set_irq_chip_data(irq, NULL);
+                irq_set_chip_and_handler(irq, NULL, NULL);
+                irq_set_chip_data(irq, NULL);
         }
 }
 
diff --git a/drivers/mfd/t7l66xb.c b/drivers/mfd/t7l66xb.c
index af57fc706a4c..42830e692964 100644
--- a/drivers/mfd/t7l66xb.c
+++ b/drivers/mfd/t7l66xb.c
@@ -186,7 +186,7 @@ static struct mfd_cell t7l66xb_cells[] = {
 /* Handle the T7L66XB interrupt mux */
 static void t7l66xb_irq(unsigned int irq, struct irq_desc *desc)
 {
-        struct t7l66xb *t7l66xb = get_irq_data(irq);
+        struct t7l66xb *t7l66xb = irq_get_handler_data(irq);
         unsigned int isr;
         unsigned int i, irq_base;
 
@@ -243,17 +243,16 @@ static void t7l66xb_attach_irq(struct platform_device *dev)
         irq_base = t7l66xb->irq_base;
 
         for (irq = irq_base; irq < irq_base + T7L66XB_NR_IRQS; irq++) {
-                set_irq_chip(irq, &t7l66xb_chip);
-                set_irq_chip_data(irq, t7l66xb);
-                set_irq_handler(irq, handle_level_irq);
+                irq_set_chip_and_handler(irq, &t7l66xb_chip, handle_level_irq);
+                irq_set_chip_data(irq, t7l66xb);
 #ifdef CONFIG_ARM
                 set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 #endif
         }
 
-        set_irq_type(t7l66xb->irq, IRQ_TYPE_EDGE_FALLING);
-        set_irq_data(t7l66xb->irq, t7l66xb);
-        set_irq_chained_handler(t7l66xb->irq, t7l66xb_irq);
+        irq_set_irq_type(t7l66xb->irq, IRQ_TYPE_EDGE_FALLING);
+        irq_set_handler_data(t7l66xb->irq, t7l66xb);
+        irq_set_chained_handler(t7l66xb->irq, t7l66xb_irq);
 }
 
 static void t7l66xb_detach_irq(struct platform_device *dev)
@@ -263,15 +262,15 @@ static void t7l66xb_detach_irq(struct platform_device *dev)
 
         irq_base = t7l66xb->irq_base;
 
-        set_irq_chained_handler(t7l66xb->irq, NULL);
-        set_irq_data(t7l66xb->irq, NULL);
+        irq_set_chained_handler(t7l66xb->irq, NULL);
+        irq_set_handler_data(t7l66xb->irq, NULL);
 
         for (irq = irq_base; irq < irq_base + T7L66XB_NR_IRQS; irq++) {
 #ifdef CONFIG_ARM
                 set_irq_flags(irq, 0);
 #endif
-                set_irq_chip(irq, NULL);
-                set_irq_chip_data(irq, NULL);
+                irq_set_chip(irq, NULL);
+                irq_set_chip_data(irq, NULL);
         }
 }
 
diff --git a/drivers/mfd/tc3589x.c b/drivers/mfd/tc3589x.c
index 729dbeed2ce0..c27e515b0722 100644
--- a/drivers/mfd/tc3589x.c
+++ b/drivers/mfd/tc3589x.c
@@ -192,14 +192,14 @@ static int tc3589x_irq_init(struct tc3589x *tc3589x)
         int irq;
 
         for (irq = base; irq < base + TC3589x_NR_INTERNAL_IRQS; irq++) {
-                set_irq_chip_data(irq, tc3589x);
-                set_irq_chip_and_handler(irq, &dummy_irq_chip,
+                irq_set_chip_data(irq, tc3589x);
+                irq_set_chip_and_handler(irq, &dummy_irq_chip,
                                          handle_edge_irq);
-                set_irq_nested_thread(irq, 1);
+                irq_set_nested_thread(irq, 1);
 #ifdef CONFIG_ARM
                 set_irq_flags(irq, IRQF_VALID);
 #else
-                set_irq_noprobe(irq);
+                irq_set_noprobe(irq);
 #endif
         }
 
@@ -215,8 +215,8 @@ static void tc3589x_irq_remove(struct tc3589x *tc3589x)
 #ifdef CONFIG_ARM
                 set_irq_flags(irq, 0);
 #endif
-                set_irq_chip_and_handler(irq, NULL, NULL);
-                set_irq_chip_data(irq, NULL);
+                irq_set_chip_and_handler(irq, NULL, NULL);
+                irq_set_chip_data(irq, NULL);
         }
 }
 
diff --git a/drivers/mfd/tc6393xb.c b/drivers/mfd/tc6393xb.c
index 3d62ded86a8f..fc53ce287601 100644
--- a/drivers/mfd/tc6393xb.c
+++ b/drivers/mfd/tc6393xb.c
@@ -513,7 +513,7 @@ static int tc6393xb_register_gpio(struct tc6393xb *tc6393xb, int gpio_base)
 static void
 tc6393xb_irq(unsigned int irq, struct irq_desc *desc)
 {
-        struct tc6393xb *tc6393xb = get_irq_data(irq);
+        struct tc6393xb *tc6393xb = irq_get_handler_data(irq);
         unsigned int isr;
         unsigned int i, irq_base;
 
@@ -572,15 +572,14 @@ static void tc6393xb_attach_irq(struct platform_device *dev)
         irq_base = tc6393xb->irq_base;
 
         for (irq = irq_base; irq < irq_base + TC6393XB_NR_IRQS; irq++) {
-                set_irq_chip(irq, &tc6393xb_chip);
-                set_irq_chip_data(irq, tc6393xb);
-                set_irq_handler(irq, handle_edge_irq);
+                irq_set_chip_and_handler(irq, &tc6393xb_chip, handle_edge_irq);
+                irq_set_chip_data(irq, tc6393xb);
                 set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
         }
 
-        set_irq_type(tc6393xb->irq, IRQ_TYPE_EDGE_FALLING);
-        set_irq_data(tc6393xb->irq, tc6393xb);
-        set_irq_chained_handler(tc6393xb->irq, tc6393xb_irq);
+        irq_set_irq_type(tc6393xb->irq, IRQ_TYPE_EDGE_FALLING);
+        irq_set_handler_data(tc6393xb->irq, tc6393xb);
+        irq_set_chained_handler(tc6393xb->irq, tc6393xb_irq);
 }
 
 static void tc6393xb_detach_irq(struct platform_device *dev)
@@ -588,15 +587,15 @@ static void tc6393xb_detach_irq(struct platform_device *dev)
         struct tc6393xb *tc6393xb = platform_get_drvdata(dev);
         unsigned int irq, irq_base;
 
-        set_irq_chained_handler(tc6393xb->irq, NULL);
-        set_irq_data(tc6393xb->irq, NULL);
+        irq_set_chained_handler(tc6393xb->irq, NULL);
+        irq_set_handler_data(tc6393xb->irq, NULL);
 
         irq_base = tc6393xb->irq_base;
 
         for (irq = irq_base; irq < irq_base + TC6393XB_NR_IRQS; irq++) {
                 set_irq_flags(irq, 0);
-                set_irq_chip(irq, NULL);
-                set_irq_chip_data(irq, NULL);
+                irq_set_chip(irq, NULL);
+                irq_set_chip_data(irq, NULL);
         }
 }
 
diff --git a/drivers/mfd/tps6586x.c b/drivers/mfd/tps6586x.c
index 0aa9186aec19..b600808690c1 100644
--- a/drivers/mfd/tps6586x.c
+++ b/drivers/mfd/tps6586x.c
@@ -422,10 +422,10 @@ static int __devinit tps6586x_irq_init(struct tps6586x *tps6586x, int irq,
 
         for (i = 0; i < ARRAY_SIZE(tps6586x_irqs); i++) {
                 int __irq = i + tps6586x->irq_base;
-                set_irq_chip_data(__irq, tps6586x);
-                set_irq_chip_and_handler(__irq, &tps6586x->irq_chip,
+                irq_set_chip_data(__irq, tps6586x);
+                irq_set_chip_and_handler(__irq, &tps6586x->irq_chip,
                                          handle_simple_irq);
-                set_irq_nested_thread(__irq, 1);
+                irq_set_nested_thread(__irq, 1);
 #ifdef CONFIG_ARM
                 set_irq_flags(__irq, IRQF_VALID);
 #endif
diff --git a/drivers/mfd/twl4030-irq.c b/drivers/mfd/twl4030-irq.c
index 63a30e88908f..8a7ee3139b86 100644
--- a/drivers/mfd/twl4030-irq.c
+++ b/drivers/mfd/twl4030-irq.c
@@ -320,24 +320,8 @@ static int twl4030_irq_thread(void *data)
                 for (module_irq = twl4030_irq_base;
                                 pih_isr;
                                 pih_isr >>= 1, module_irq++) {
-                        if (pih_isr & 0x1) {
-                                struct irq_desc *d = irq_to_desc(module_irq);
-
-                                if (!d) {
-                                        pr_err("twl4030: Invalid SIH IRQ: %d\n",
-                                               module_irq);
-                                        return -EINVAL;
-                                }
-
-                                /* These can't be masked ... always warn
-                                 * if we get any surprises.
-                                 */
-                                if (d->status & IRQ_DISABLED)
-                                        note_interrupt(module_irq, d,
-                                                        IRQ_NONE);
-                                else
-                                        d->handle_irq(module_irq, d);
-                        }
+                        if (pih_isr & 0x1)
+                                generic_handle_irq(module_irq);
                 }
                 local_irq_enable();
 
@@ -470,7 +454,7 @@ static inline void activate_irq(int irq)
         set_irq_flags(irq, IRQF_VALID);
 #else
         /* same effect on other architectures */
-        set_irq_noprobe(irq);
+        irq_set_noprobe(irq);
 #endif
 }
 
@@ -560,24 +544,18 @@ static void twl4030_sih_do_edge(struct work_struct *work)
         /* Modify only the bits we know must change */
         while (edge_change) {
                 int             i = fls(edge_change) - 1;
-                struct irq_desc *d = irq_to_desc(i + agent->irq_base);
+                struct irq_data *idata = irq_get_irq_data(i + agent->irq_base);
                 int             byte = 1 + (i >> 2);
                 int             off = (i & 0x3) * 2;
-
-                if (!d) {
-                        pr_err("twl4030: Invalid IRQ: %d\n",
-                               i + agent->irq_base);
-                        return;
-                }
+                unsigned int    type;
 
                 bytes[byte] &= ~(0x03 << off);
 
-                raw_spin_lock_irq(&d->lock);
-                if (d->status & IRQ_TYPE_EDGE_RISING)
+                type = irqd_get_trigger_type(idata);
+                if (type & IRQ_TYPE_EDGE_RISING)
                         bytes[byte] |= BIT(off + 1);
-                if (d->status & IRQ_TYPE_EDGE_FALLING)
+                if (type & IRQ_TYPE_EDGE_FALLING)
                         bytes[byte] |= BIT(off + 0);
-                raw_spin_unlock_irq(&d->lock);
 
                 edge_change &= ~BIT(i);
         }
@@ -626,21 +604,13 @@ static void twl4030_sih_unmask(struct irq_data *data)
 static int twl4030_sih_set_type(struct irq_data *data, unsigned trigger)
 {
         struct sih_agent *sih = irq_data_get_irq_chip_data(data);
-        struct irq_desc *desc = irq_to_desc(data->irq);
         unsigned long flags;
 
-        if (!desc) {
-                pr_err("twl4030: Invalid IRQ: %d\n", data->irq);
-                return -EINVAL;
-        }
-
         if (trigger & ~(IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING))
                 return -EINVAL;
 
         spin_lock_irqsave(&sih_agent_lock, flags);
-        if ((desc->status & IRQ_TYPE_SENSE_MASK) != trigger) {
-                desc->status &= ~IRQ_TYPE_SENSE_MASK;
-                desc->status |= trigger;
+        if (irqd_get_trigger_type(data) != trigger) {
                 sih->edge_change |= BIT(data->irq - sih->irq_base);
                 queue_work(wq, &sih->edge_work);
         }
@@ -680,7 +650,7 @@ static inline int sih_read_isr(const struct sih *sih)
  */
 static void handle_twl4030_sih(unsigned irq, struct irq_desc *desc)
 {
-        struct sih_agent *agent = get_irq_data(irq);
+        struct sih_agent *agent = irq_get_handler_data(irq);
         const struct sih *sih = agent->sih;
         int isr;
 
@@ -754,9 +724,9 @@ int twl4030_sih_setup(int module)
         for (i = 0; i < sih->bits; i++) {
                 irq = irq_base + i;
 
-                set_irq_chip_and_handler(irq, &twl4030_sih_irq_chip,
-                                handle_edge_irq);
-                set_irq_chip_data(irq, agent);
+                irq_set_chip_and_handler(irq, &twl4030_sih_irq_chip,
+                                         handle_edge_irq);
+                irq_set_chip_data(irq, agent);
                 activate_irq(irq);
         }
 
@@ -765,8 +735,8 @@ int twl4030_sih_setup(int module)
 
         /* replace generic PIH handler (handle_simple_irq) */
         irq = sih_mod + twl4030_irq_base;
-        set_irq_data(irq, agent);
-        set_irq_chained_handler(irq, handle_twl4030_sih);
+        irq_set_handler_data(irq, agent);
+        irq_set_chained_handler(irq, handle_twl4030_sih);
 
         pr_info("twl4030: %s (irq %d) chaining IRQs %d..%d\n", sih->name,
                         irq, irq_base, twl4030_irq_next - 1);
@@ -815,8 +785,8 @@ int twl4030_init_irq(int irq_num, unsigned irq_base, unsigned irq_end)
         twl4030_sih_irq_chip.irq_ack = dummy_irq_chip.irq_ack;
 
         for (i = irq_base; i < irq_end; i++) {
-                set_irq_chip_and_handler(i, &twl4030_irq_chip,
-                                handle_simple_irq);
+                irq_set_chip_and_handler(i, &twl4030_irq_chip,
+                                         handle_simple_irq);
                 activate_irq(i);
         }
         twl4030_irq_next = i;
@@ -856,7 +826,7 @@ fail_rqirq:
         /* clean up twl4030_sih_setup */
 fail:
         for (i = irq_base; i < irq_end; i++)
-                set_irq_chip_and_handler(i, NULL, NULL);
+                irq_set_chip_and_handler(i, NULL, NULL);
         destroy_workqueue(wq);
         wq = NULL;
         return status;
diff --git a/drivers/mfd/twl6030-irq.c b/drivers/mfd/twl6030-irq.c
index 4082ed73613f..fa937052fbab 100644
--- a/drivers/mfd/twl6030-irq.c
+++ b/drivers/mfd/twl6030-irq.c
@@ -140,22 +140,7 @@ static int twl6030_irq_thread(void *data)
                         if (sts.int_sts & 0x1) {
                                 int module_irq = twl6030_irq_base +
                                         twl6030_interrupt_mapping[i];
-                                struct irq_desc *d = irq_to_desc(module_irq);
-
-                                if (!d) {
-                                        pr_err("twl6030: Invalid SIH IRQ: %d\n",
-                                               module_irq);
-                                        return -EINVAL;
-                                }
-
-                                /* These can't be masked ... always warn
-                                 * if we get any surprises.
-                                 */
-                                if (d->status & IRQ_DISABLED)
-                                        note_interrupt(module_irq, d,
-                                                        IRQ_NONE);
-                                else
-                                        d->handle_irq(module_irq, d);
+                                generic_handle_irq(module_irq);
 
                         }
                 local_irq_enable();
@@ -198,7 +183,7 @@ static inline void activate_irq(int irq)
         set_irq_flags(irq, IRQF_VALID);
 #else
         /* same effect on other architectures */
-        set_irq_noprobe(irq);
+        irq_set_noprobe(irq);
 #endif
 }
 
@@ -335,8 +320,8 @@ int twl6030_init_irq(int irq_num, unsigned irq_base, unsigned irq_end)
         twl6030_irq_chip.irq_set_type = NULL;
 
         for (i = irq_base; i < irq_end; i++) {
-                set_irq_chip_and_handler(i, &twl6030_irq_chip,
-                                handle_simple_irq);
+                irq_set_chip_and_handler(i, &twl6030_irq_chip,
+                                         handle_simple_irq);
                 activate_irq(i);
         }
 
@@ -365,7 +350,7 @@ fail_irq:
 
 fail_kthread:
         for (i = irq_base; i < irq_end; i++)
-                set_irq_chip_and_handler(i, NULL, NULL);
+                irq_set_chip_and_handler(i, NULL, NULL);
         return status;
 }
 
diff --git a/drivers/mfd/wl1273-core.c b/drivers/mfd/wl1273-core.c
index f76f6c798046..04914f2836c0 100644
--- a/drivers/mfd/wl1273-core.c
+++ b/drivers/mfd/wl1273-core.c
@@ -25,7 +25,7 @@
 
 #define DRIVER_DESC "WL1273 FM Radio Core"
 
-static struct i2c_device_id wl1273_driver_id_table[] = {
+static const struct i2c_device_id wl1273_driver_id_table[] = {
         { WL1273_FM_DRIVER_NAME, 0 },
         { }
 };
diff --git a/drivers/mfd/wm831x-irq.c b/drivers/mfd/wm831x-irq.c
index a5cd17e18d09..23e66af89dea 100644
--- a/drivers/mfd/wm831x-irq.c
+++ b/drivers/mfd/wm831x-irq.c
@@ -553,17 +553,17 @@ int wm831x_irq_init(struct wm831x *wm831x, int irq)
         for (cur_irq = wm831x->irq_base;
              cur_irq < ARRAY_SIZE(wm831x_irqs) + wm831x->irq_base;
              cur_irq++) {
-                set_irq_chip_data(cur_irq, wm831x);
-                set_irq_chip_and_handler(cur_irq, &wm831x_irq_chip,
+                irq_set_chip_data(cur_irq, wm831x);
+                irq_set_chip_and_handler(cur_irq, &wm831x_irq_chip,
                                          handle_edge_irq);
-                set_irq_nested_thread(cur_irq, 1);
+                irq_set_nested_thread(cur_irq, 1);
 
                 /* ARM needs us to explicitly flag the IRQ as valid
                  * and will set them noprobe when we do so. */
 #ifdef CONFIG_ARM
                 set_irq_flags(cur_irq, IRQF_VALID);
 #else
-                set_irq_noprobe(cur_irq);
+                irq_set_noprobe(cur_irq);
 #endif
         }
 
diff --git a/drivers/mfd/wm8350-irq.c b/drivers/mfd/wm8350-irq.c
index 5839966ebd85..ed4b22a167b3 100644
--- a/drivers/mfd/wm8350-irq.c
+++ b/drivers/mfd/wm8350-irq.c
@@ -518,17 +518,17 @@ int wm8350_irq_init(struct wm8350 *wm8350, int irq,
         for (cur_irq = wm8350->irq_base;
              cur_irq < ARRAY_SIZE(wm8350_irqs) + wm8350->irq_base;
              cur_irq++) {
-                set_irq_chip_data(cur_irq, wm8350);
-                set_irq_chip_and_handler(cur_irq, &wm8350_irq_chip,
+                irq_set_chip_data(cur_irq, wm8350);
+                irq_set_chip_and_handler(cur_irq, &wm8350_irq_chip,
                                          handle_edge_irq);
-                set_irq_nested_thread(cur_irq, 1);
+                irq_set_nested_thread(cur_irq, 1);
 
                 /* ARM needs us to explicitly flag the IRQ as valid
                  * and will set them noprobe when we do so. */
 #ifdef CONFIG_ARM
                 set_irq_flags(cur_irq, IRQF_VALID);
 #else
-                set_irq_noprobe(cur_irq);
+                irq_set_noprobe(cur_irq);
 #endif
         }
 
diff --git a/drivers/mfd/wm8994-irq.c b/drivers/mfd/wm8994-irq.c
index 1e3bf4a2ff8e..71c6e8f9aedb 100644
--- a/drivers/mfd/wm8994-irq.c
+++ b/drivers/mfd/wm8994-irq.c
@@ -278,17 +278,17 @@ int wm8994_irq_init(struct wm8994 *wm8994)
         for (cur_irq = wm8994->irq_base;
              cur_irq < ARRAY_SIZE(wm8994_irqs) + wm8994->irq_base;
              cur_irq++) {
-                set_irq_chip_data(cur_irq, wm8994);
-                set_irq_chip_and_handler(cur_irq, &wm8994_irq_chip,
+                irq_set_chip_data(cur_irq, wm8994);
+                irq_set_chip_and_handler(cur_irq, &wm8994_irq_chip,
                                          handle_edge_irq);
-                set_irq_nested_thread(cur_irq, 1);
+                irq_set_nested_thread(cur_irq, 1);
 
                 /* ARM needs us to explicitly flag the IRQ as valid
                  * and will set them noprobe when we do so. */
 #ifdef CONFIG_ARM
                 set_irq_flags(cur_irq, IRQF_VALID);
 #else
-                set_irq_noprobe(cur_irq);
+                irq_set_noprobe(cur_irq);
 #endif
         }
 
diff --git a/include/linux/mfd/core.h b/include/linux/mfd/core.h
index 1408bf8eed5f..ad1b19aa6508 100644
--- a/include/linux/mfd/core.h
+++ b/include/linux/mfd/core.h
@@ -63,6 +63,24 @@ extern int mfd_cell_enable(struct platform_device *pdev);
 extern int mfd_cell_disable(struct platform_device *pdev);
 
 /*
+ * "Clone" multiple platform devices for a single cell. This is to be used
+ * for devices that have multiple users of a cell.  For example, if an mfd
+ * driver wants the cell "foo" to be used by a GPIO driver, an MTD driver,
+ * and a platform driver, the following bit of code would be use after first
+ * calling mfd_add_devices():
+ *
+ * const char *fclones[] = { "foo-gpio", "foo-mtd" };
+ * err = mfd_clone_cells("foo", fclones, ARRAY_SIZE(fclones));
+ *
+ * Each driver (MTD, GPIO, and platform driver) would then register
+ * platform_drivers for "foo-mtd", "foo-gpio", and "foo", respectively.
+ * The cell's .enable/.disable hooks should be used to deal with hardware
+ * resource contention.
+ */
+extern int mfd_clone_cell(const char *cell, const char **clones,
+                size_t n_clones);
+
+/*
  * Given a platform device that's been created by mfd_add_devices(), fetch
  * the mfd_cell that created it.
  */
@@ -87,13 +105,4 @@ extern int mfd_add_devices(struct device *parent, int id,
 
 extern void mfd_remove_devices(struct device *parent);
 
-/*
- * For MFD drivers with clients sharing access to resources, these create
- * multiple platform devices per cell.  Contention handling must still be
- * handled via drivers (ie, with enable/disable hooks).
- */
-extern int mfd_shared_platform_driver_register(struct platform_driver *drv,
-                const char *cellname);
-extern void mfd_shared_platform_driver_unregister(struct platform_driver *drv);
-
 #endif
diff --git a/include/linux/mfd/max8997-private.h b/include/linux/mfd/max8997-private.h
index 93a9477e075f..69d1010e2e51 100644
--- a/include/linux/mfd/max8997-private.h
+++ b/include/linux/mfd/max8997-private.h
@@ -24,6 +24,8 @@
 
 #include <linux/i2c.h>
 
+#define MAX8997_REG_INVALID     (0xff)
+
 enum max8997_pmic_reg {
         MAX8997_REG_PMIC_ID0    = 0x00,
         MAX8997_REG_PMIC_ID1    = 0x01,
@@ -313,6 +315,7 @@ enum max8997_irq {
 #define MAX8997_REG_BUCK2DVS(x) (MAX8997_REG_BUCK2DVS1 + (x) - 1)
 #define MAX8997_REG_BUCK5DVS(x) (MAX8997_REG_BUCK5DVS1 + (x) - 1)
 
+#define MAX8997_NUM_GPIO        12
 struct max8997_dev {
         struct device *dev;
         struct i2c_client *i2c; /* 0xcc / PMIC, Battery Control, and FLASH */
@@ -324,11 +327,19 @@ struct max8997_dev {
         int type;
         struct platform_device *battery; /* battery control (not fuel gauge) */
 
+        int irq;
+        int ono;
+        int irq_base;
         bool wakeup;
+        struct mutex irqlock;
+        int irq_masks_cur[MAX8997_IRQ_GROUP_NR];
+        int irq_masks_cache[MAX8997_IRQ_GROUP_NR];
 
         /* For hibernation */
         u8 reg_dump[MAX8997_REG_PMIC_END + MAX8997_MUIC_REG_END +
                 MAX8997_HAPTIC_REG_END];
+
+        bool gpio_status[MAX8997_NUM_GPIO];
 };
 
 enum max8997_types {
@@ -336,6 +347,10 @@ enum max8997_types {
         TYPE_MAX8966,
 };
 
+extern int max8997_irq_init(struct max8997_dev *max8997);
+extern void max8997_irq_exit(struct max8997_dev *max8997);
+extern int max8997_irq_resume(struct max8997_dev *max8997);
+
 extern int max8997_read_reg(struct i2c_client *i2c, u8 reg, u8 *dest);
 extern int max8997_bulk_read(struct i2c_client *i2c, u8 reg, int count,
                                 u8 *buf);
@@ -344,4 +359,10 @@ extern int max8997_bulk_write(struct i2c_client *i2c, u8 reg, int count,
                                 u8 *buf);
 extern int max8997_update_reg(struct i2c_client *i2c, u8 reg, u8 val, u8 mask);
 
+#define MAX8997_GPIO_INT_BOTH   (0x3 << 4)
+#define MAX8997_GPIO_INT_RISE   (0x2 << 4)
+#define MAX8997_GPIO_INT_FALL   (0x1 << 4)
+
+#define MAX8997_GPIO_INT_MASK   (0x3 << 4)
+#define MAX8997_GPIO_DATA_MASK  (0x1 << 2)
 #endif /*  __LINUX_MFD_MAX8997_PRIV_H */
diff --git a/include/linux/mfd/max8997.h b/include/linux/mfd/max8997.h
index cb671b3451bf..60931d089422 100644
--- a/include/linux/mfd/max8997.h
+++ b/include/linux/mfd/max8997.h
@@ -78,8 +78,11 @@ struct max8997_regulator_data {
 };
 
 struct max8997_platform_data {
-        bool wakeup;
-        /* IRQ: Not implemented */
+        /* IRQ */
+        int irq_base;
+        int ono;
+        int wakeup;
+
         /* ---- PMIC ---- */
         struct max8997_regulator_data *regulators;
         int num_regulators;