Merge branch 'for-next' of git://git.o-hand.com/linux-mfd

* 'for-next' of git://git.o-hand.com/linux-mfd:
  mfd: fix da903x warning
  mfd: fix MAINTAINERS entry
  mfd: Use the value of the final spin when reading the AUXADC
  mfd: Storage class should be before const qualifier
  mfd: PASIC3: supply clock_rate to DS1WM via driver_data
  mfd: remove DS1WM clock handling
  mfd: remove unused PASIC3 bus_shift field
  pxa/magician: remove deprecated .bus_shift from PASIC3 platform_data
  mfd: convert PASIC3 to use MFD core
  mfd: convert DS1WM to use MFD core
  mfd: Support active high IRQs on WM835x
  mfd: Use bulk read to fill WM8350 register cache
  mfd: remove duplicated #include from pcf50633

8 files changed, 102 insertions, 118 deletions

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 75f35dbb11dc..ee3927ab11e0 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -52,6 +52,7 @@ config HTC_EGPIO
 
 config HTC_PASIC3
         tristate "HTC PASIC3 LED/DS1WM chip support"
+        select MFD_CORE
         help
           This core driver provides register access for the LED/DS1WM
           chips labeled "AIC2" and "AIC3", found on HTC Blueangel and
diff --git a/drivers/mfd/da903x.c b/drivers/mfd/da903x.c
index 99f8dcfe3d98..7283d88656af 100644
--- a/drivers/mfd/da903x.c
+++ b/drivers/mfd/da903x.c
@@ -413,7 +413,7 @@ static void da903x_irq_work(struct work_struct *work)
         enable_irq(chip->client->irq);
 }
 
-static int da903x_irq_handler(int irq, void *data)
+static irqreturn_t da903x_irq_handler(int irq, void *data)
 {
         struct da903x_chip *chip = data;
 
diff --git a/drivers/mfd/htc-pasic3.c b/drivers/mfd/htc-pasic3.c
index 91b294dcc133..386da1566fcc 100644
--- a/drivers/mfd/htc-pasic3.c
+++ b/drivers/mfd/htc-pasic3.c
@@ -12,18 +12,17 @@
 #include <linux/module.h>
 #include <linux/platform_device.h>
 
-#include <linux/ds1wm.h>
 #include <linux/gpio.h>
 #include <linux/io.h>
 #include <linux/irq.h>
 #include <linux/interrupt.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/ds1wm.h>
 #include <linux/mfd/htc-pasic3.h>
 
 struct pasic3_data {
         void __iomem *mapping;
         unsigned int bus_shift;
-        struct platform_device *ds1wm_pdev;
-        struct platform_device *led_pdev;
 };
 
 #define REG_ADDR  5
@@ -65,46 +64,15 @@ EXPORT_SYMBOL(pasic3_read_register); /* for leds-pasic3 */
  * LEDs
  */
 
-static int led_device_add(struct device *pasic3_dev,
-                                const struct pasic3_leds_machinfo *pdata)
-{
-        struct pasic3_data *asic = pasic3_dev->driver_data;
-        struct platform_device *pdev;
-        int ret;
-
-        pdev = platform_device_alloc("pasic3-led", -1);
-        if (!pdev) {
-                dev_dbg(pasic3_dev, "failed to allocate LED platform device\n");
-                return -ENOMEM;
-        }
-
-        ret = platform_device_add_data(pdev, pdata,
-                                        sizeof(struct pasic3_leds_machinfo));
-        if (ret < 0) {
-                dev_dbg(pasic3_dev, "failed to add LED platform data\n");
-                goto exit_pdev_put;
-        }
-
-        pdev->dev.parent = pasic3_dev;
-        ret = platform_device_add(pdev);
-        if (ret < 0) {
-                dev_dbg(pasic3_dev, "failed to add LED platform device\n");
-                goto exit_pdev_put;
-        }
-
-        asic->led_pdev = pdev;
-        return 0;
-
-exit_pdev_put:
-        platform_device_put(pdev);
-        return ret;
-}
+static struct mfd_cell led_cell __initdata = {
+        .name = "leds-pasic3",
+};
 
 /*
  * DS1WM
  */
 
-static void ds1wm_enable(struct platform_device *pdev)
+static int ds1wm_enable(struct platform_device *pdev)
 {
         struct device *dev = pdev->dev.parent;
         int c;
@@ -113,9 +81,10 @@ static void ds1wm_enable(struct platform_device *pdev)
         pasic3_write_register(dev, 0x28, c & 0x7f);
 
         dev_dbg(dev, "DS1WM OWM_EN low (active) %02x\n", c & 0x7f);
+        return 0;
 }
 
-static void ds1wm_disable(struct platform_device *pdev)
+static int ds1wm_disable(struct platform_device *pdev)
 {
         struct device *dev = pdev->dev.parent;
         int c;
@@ -124,56 +93,33 @@ static void ds1wm_disable(struct platform_device *pdev)
         pasic3_write_register(dev, 0x28, c | 0x80);
 
         dev_dbg(dev, "DS1WM OWM_EN high (inactive) %02x\n", c | 0x80);
+        return 0;
 }
 
-static struct ds1wm_platform_data ds1wm_pdata = {
-        .bus_shift = 2,
-        .enable    = ds1wm_enable,
-        .disable   = ds1wm_disable,
+static struct ds1wm_driver_data ds1wm_pdata = {
+        .active_high = 0,
 };
 
-static int ds1wm_device_add(struct platform_device *pasic3_pdev, int bus_shift)
-{
-        struct device *pasic3_dev = &pasic3_pdev->dev;
-        struct pasic3_data *asic = pasic3_dev->driver_data;
-        struct platform_device *pdev;
-        int ret;
-
-        pdev = platform_device_alloc("ds1wm", -1);
-        if (!pdev) {
-                dev_dbg(pasic3_dev, "failed to allocate DS1WM platform device\n");
-                return -ENOMEM;
-        }
-
-        ret = platform_device_add_resources(pdev, pasic3_pdev->resource,
-                                                pasic3_pdev->num_resources);
-        if (ret < 0) {
-                dev_dbg(pasic3_dev, "failed to add DS1WM resources\n");
-                goto exit_pdev_put;
-        }
-
-        ds1wm_pdata.bus_shift = asic->bus_shift;
-        ret = platform_device_add_data(pdev, &ds1wm_pdata,
-                                        sizeof(struct ds1wm_platform_data));
-        if (ret < 0) {
-                dev_dbg(pasic3_dev, "failed to add DS1WM platform data\n");
-                goto exit_pdev_put;
-        }
-
-        pdev->dev.parent = pasic3_dev;
-        ret = platform_device_add(pdev);
-        if (ret < 0) {
-                dev_dbg(pasic3_dev, "failed to add DS1WM platform device\n");
-                goto exit_pdev_put;
-        }
-
-        asic->ds1wm_pdev = pdev;
-        return 0;
+static struct resource ds1wm_resources[] __initdata = {
+        [0] = {
+                .start  = 0,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = 0,
+                .end    = 0,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
 
-exit_pdev_put:
-        platform_device_put(pdev);
-        return ret;
-}
+static struct mfd_cell ds1wm_cell __initdata = {
+        .name          = "ds1wm",
+        .enable        = ds1wm_enable,
+        .disable       = ds1wm_disable,
+        .driver_data   = &ds1wm_pdata,
+        .num_resources = 2,
+        .resources     = ds1wm_resources,
+};
 
 static int __init pasic3_probe(struct platform_device *pdev)
 {
@@ -182,12 +128,27 @@ static int __init pasic3_probe(struct platform_device *pdev)
         struct pasic3_data *asic;
         struct resource *r;
         int ret;
+        int irq = 0;
+
+        r = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+        if (r) {
+                ds1wm_resources[1].flags = IORESOURCE_IRQ | (r->flags &
+                        (IORESOURCE_IRQ_HIGHEDGE | IORESOURCE_IRQ_LOWEDGE));
+                irq = r->start;
+        }
+
+        r = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+        if (r) {
+                ds1wm_resources[1].flags = IORESOURCE_IRQ | (r->flags &
+                        (IORESOURCE_IRQ_HIGHEDGE | IORESOURCE_IRQ_LOWEDGE));
+                irq = r->start;
+        }
 
         r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
         if (!r)
                 return -ENXIO;
 
-        if (!request_mem_region(r->start, r->end - r->start + 1, "pasic3"))
+        if (!request_mem_region(r->start, resource_size(r), "pasic3"))
                 return -EBUSY;
 
         asic = kzalloc(sizeof(struct pasic3_data), GFP_KERNEL);
@@ -196,24 +157,33 @@ static int __init pasic3_probe(struct platform_device *pdev)
 
         platform_set_drvdata(pdev, asic);
 
-        if (pdata && pdata->bus_shift)
-                asic->bus_shift = pdata->bus_shift;
-        else
-                asic->bus_shift = 2;
-
-        asic->mapping = ioremap(r->start, r->end - r->start + 1);
+        asic->mapping = ioremap(r->start, resource_size(r));
         if (!asic->mapping) {
                 dev_err(dev, "couldn't ioremap PASIC3\n");
                 kfree(asic);
                 return -ENOMEM;
         }
 
-        ret = ds1wm_device_add(pdev, asic->bus_shift);
-        if (ret < 0)
-                dev_warn(dev, "failed to register DS1WM\n");
+        /* calculate bus shift from mem resource */
+        asic->bus_shift = (resource_size(r) - 5) >> 3;
+
+        if (pdata && pdata->clock_rate) {
+                ds1wm_pdata.clock_rate = pdata->clock_rate;
+                /* the first 5 PASIC3 registers control the DS1WM */
+                ds1wm_resources[0].end = (5 << asic->bus_shift) - 1;
+                ds1wm_cell.platform_data = &ds1wm_cell;
+                ds1wm_cell.data_size = sizeof(ds1wm_cell);
+                ret = mfd_add_devices(&pdev->dev, pdev->id,
+                                &ds1wm_cell, 1, r, irq);
+                if (ret < 0)
+                        dev_warn(dev, "failed to register DS1WM\n");
+        }
 
-        if (pdata->led_pdata) {
-                ret = led_device_add(dev, pdata->led_pdata);
+        if (pdata && pdata->led_pdata) {
+                led_cell.driver_data = pdata->led_pdata;
+                led_cell.platform_data = &led_cell;
+                led_cell.data_size = sizeof(ds1wm_cell);
+                ret = mfd_add_devices(&pdev->dev, pdev->id, &led_cell, 1, r, 0);
                 if (ret < 0)
                         dev_warn(dev, "failed to register LED device\n");
         }
@@ -226,14 +196,11 @@ static int pasic3_remove(struct platform_device *pdev)
         struct pasic3_data *asic = platform_get_drvdata(pdev);
         struct resource *r;
 
-        if (asic->led_pdev)
-                platform_device_unregister(asic->led_pdev);
-        if (asic->ds1wm_pdev)
-                platform_device_unregister(asic->ds1wm_pdev);
+        mfd_remove_devices(&pdev->dev);
 
         iounmap(asic->mapping);
         r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        release_mem_region(r->start, r->end - r->start + 1);
+        release_mem_region(r->start, resource_size(r));
         kfree(asic);
         return 0;
 }
diff --git a/drivers/mfd/pcf50633-core.c b/drivers/mfd/pcf50633-core.c
index 2e36057659e1..7793932a513b 100644
--- a/drivers/mfd/pcf50633-core.c
+++ b/drivers/mfd/pcf50633-core.c
@@ -15,7 +15,6 @@
 #include <linux/kernel.h>
 #include <linux/device.h>
 #include <linux/sysfs.h>
-#include <linux/device.h>
 #include <linux/module.h>
 #include <linux/types.h>
 #include <linux/interrupt.h>
diff --git a/drivers/mfd/t7l66xb.c b/drivers/mfd/t7l66xb.c
index 9f7024c0f8ec..e9f4323dd2cb 100644
--- a/drivers/mfd/t7l66xb.c
+++ b/drivers/mfd/t7l66xb.c
@@ -108,7 +108,7 @@ static int t7l66xb_mmc_disable(struct platform_device *mmc)
 
 /*--------------------------------------------------------------------------*/
 
-const static struct resource t7l66xb_mmc_resources[] = {
+static const struct resource t7l66xb_mmc_resources[] = {
         {
                 .start = 0x800,
                 .end    = 0x9ff,
@@ -126,7 +126,7 @@ const static struct resource t7l66xb_mmc_resources[] = {
         },
 };
 
-const static struct resource t7l66xb_nand_resources[] = {
+static const struct resource t7l66xb_nand_resources[] = {
         {
                 .start  = 0xc00,
                 .end    = 0xc07,
diff --git a/drivers/mfd/tc6393xb.c b/drivers/mfd/tc6393xb.c
index f856e9463a9f..77a12fc8045e 100644
--- a/drivers/mfd/tc6393xb.c
+++ b/drivers/mfd/tc6393xb.c
@@ -172,7 +172,7 @@ static struct resource __devinitdata tc6393xb_mmc_resources[] = {
         },
 };
 
-const static struct resource tc6393xb_ohci_resources[] = {
+static const struct resource tc6393xb_ohci_resources[] = {
         {
                 .start  = 0x3000,
                 .end    = 0x31ff,
diff --git a/drivers/mfd/twl4030-irq.c b/drivers/mfd/twl4030-irq.c
index b10876036983..aca2670afd78 100644
--- a/drivers/mfd/twl4030-irq.c
+++ b/drivers/mfd/twl4030-irq.c
@@ -182,7 +182,7 @@ static int twl4030_irq_thread(void *data)
         long irq = (long)data;
         struct irq_desc *desc = irq_to_desc(irq);
         static unsigned i2c_errors;
-        const static unsigned max_i2c_errors = 100;
+        static const unsigned max_i2c_errors = 100;
 
         if (!desc) {
                 pr_err("twl4030: Invalid IRQ: %ld\n", irq);
diff --git a/drivers/mfd/wm8350-core.c b/drivers/mfd/wm8350-core.c
index b457a05b28d9..c2be3088e2e1 100644
--- a/drivers/mfd/wm8350-core.c
+++ b/drivers/mfd/wm8350-core.c
@@ -1111,7 +1111,7 @@ int wm8350_read_auxadc(struct wm8350 *wm8350, int channel, int scale, int vref)
         do {
                 schedule_timeout_interruptible(1);
                 reg = wm8350_reg_read(wm8350, WM8350_DIGITISER_CONTROL_1);
-        } while (--tries && (reg & WM8350_AUXADC_POLL));
+        } while ((reg & WM8350_AUXADC_POLL) && --tries);
 
         if (!tries)
                 dev_err(wm8350->dev, "adc chn %d read timeout\n", channel);
@@ -1238,7 +1238,7 @@ static int wm8350_create_cache(struct wm8350 *wm8350, int type, int mode)
         }
 
         wm8350->reg_cache =
-            kzalloc(sizeof(u16) * (WM8350_MAX_REGISTER + 1), GFP_KERNEL);
+                kmalloc(sizeof(u16) * (WM8350_MAX_REGISTER + 1), GFP_KERNEL);
         if (wm8350->reg_cache == NULL)
                 return -ENOMEM;
 
@@ -1246,17 +1246,20 @@ static int wm8350_create_cache(struct wm8350 *wm8350, int type, int mode)
          * a PMIC so the device many not be in a virgin state and we
          * can't rely on the silicon values.
          */
+        ret = wm8350->read_dev(wm8350, 0,
+                               sizeof(u16) * (WM8350_MAX_REGISTER + 1),
+                               wm8350->reg_cache);
+        if (ret < 0) {
+                dev_err(wm8350->dev,
+                        "failed to read initial cache values\n");
+                goto out;
+        }
+
+        /* Mask out uncacheable/unreadable bits and the audio. */
         for (i = 0; i < WM8350_MAX_REGISTER; i++) {
-                /* audio register range */
                 if (wm8350_reg_io_map[i].readable &&
                     (i < WM8350_CLOCK_CONTROL_1 || i > WM8350_AIF_TEST)) {
-                        ret = wm8350->read_dev(wm8350, i, 2, (char *)&value);
-                        if (ret < 0) {
-                                dev_err(wm8350->dev,
-                                       "failed to read initial cache value\n");
-                                goto out;
-                        }
-                        value = be16_to_cpu(value);
+                        value = be16_to_cpu(wm8350->reg_cache[i]);
                         value &= wm8350_reg_io_map[i].readable;
                         value &= ~wm8350_reg_io_map[i].vol;
                         wm8350->reg_cache[i] = value;
@@ -1435,7 +1438,21 @@ int wm8350_device_init(struct wm8350 *wm8350, int irq,
         mutex_init(&wm8350->irq_mutex);
         INIT_WORK(&wm8350->irq_work, wm8350_irq_worker);
         if (irq) {
-                ret = request_irq(irq, wm8350_irq, 0,
+                int flags = 0;
+
+                if (pdata && pdata->irq_high) {
+                        flags |= IRQF_TRIGGER_HIGH;
+
+                        wm8350_set_bits(wm8350, WM8350_SYSTEM_CONTROL_1,
+                                        WM8350_IRQ_POL);
+                } else {
+                        flags |= IRQF_TRIGGER_LOW;
+
+                        wm8350_clear_bits(wm8350, WM8350_SYSTEM_CONTROL_1,
+                                          WM8350_IRQ_POL);
+                }
+
+                ret = request_irq(irq, wm8350_irq, flags,
                                   "wm8350", wm8350);
                 if (ret != 0) {
                         dev_err(wm8350->dev, "Failed to request IRQ: %d\n",