Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (66 commits)
  mfd: Fix ucb1x00 build failure for collie_defconfig
  mfd: Fix lpc_sch related depends/selects, fix build error
  gpio: Fix sch_gpio warning
  gpio: add Intel SCH GPIO controller driver
  i2c: convert i2c-isch to platform_device
  mfd: Use completion interrupt for WM831x AUXADC
  mfd: Use completion interrupt for WM835x AUXADC
  mfd: Introduce remove_script function for twl4030
  mfd/mmc: SDHI Kconfig update
  mfd: sh_mobile_sdhi MMC_CAP_MMC_HIGHSPEED support
  gpiolib: Force wm831x GPIOs into GPIO mode when requested
  mfd: Add WM831x revision B support
  gpiolib: Correct debugfs display of WM831x GPIO inversion
  gpiolib: Actually set output state in wm831x_gpio_direction_output()
  tmio_mmc: Balance cell enable()/disable() calls
  tmio_mmc: Remove const from platform data V3
  tmio_mmc: Use 100ms mmc_detect_change() delay
  tmio_mmc: Add MMC_CAP_MMC_HIGHSPEED support V2
  tmio_mmc: Keep card-detect interrupts enabled
  mfd: Add twl6030 base addr for ID0, ID1, ID2
  ...

drivers/gpio/Kconfig

@@ -94,6 +94,23 @@ config GPIO_VR41XX
 	help
 	  Say yes here to support the NEC VR4100 series General-purpose I/O Uint
 
+config GPIO_SCH
+	tristate "Intel SCH GPIO"
+	depends on GPIOLIB && PCI
+	select MFD_CORE
+	select LPC_SCH
+	help
+	  Say yes here to support GPIO interface on Intel Poulsbo SCH.
+	  The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
+	  powered by the core power rail and are turned off during sleep
+	  modes (S3 and higher). The remaining four GPIOs are powered by
+	  the Intel SCH suspend power supply. These GPIOs remain
+	  active during S3. The suspend powered GPIOs can be used to wake the
+	  system from the Suspend-to-RAM state.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called sch-gpio.
+
 comment "I2C GPIO expanders:"
 
 config GPIO_MAX7300
@@ -185,6 +202,20 @@ config GPIO_WM831X
 	  Say yes here to access the GPIO signals of WM831x power management
 	  chips from Wolfson Microelectronics.
 
+config GPIO_WM8350
+	tristate "WM8350 GPIOs"
+	depends on MFD_WM8350
+	help
+	  Say yes here to access the GPIO signals of WM8350 power management
+	  chips from Wolfson Microelectronics.
+
+config GPIO_WM8994
+	tristate "WM8994 GPIOs"
+	depends on MFD_WM8994
+	help
+	  Say yes here to access the GPIO signals of WM8994 audio hub
+	  CODECs from Wolfson Microelectronics.
+
 config GPIO_ADP5520
 	tristate "GPIO Support for ADP5520 PMIC"
 	depends on PMIC_ADP5520

drivers/gpio/Makefile

@@ -25,3 +25,6 @@ obj-$(CONFIG_GPIO_BT8XX)	+= bt8xxgpio.o
 obj-$(CONFIG_GPIO_IT8761E)	+= it8761e_gpio.o
 obj-$(CONFIG_GPIO_VR41XX)	+= vr41xx_giu.o
 obj-$(CONFIG_GPIO_WM831X)	+= wm831x-gpio.o
+obj-$(CONFIG_GPIO_WM8350)	+= wm8350-gpiolib.o
+obj-$(CONFIG_GPIO_WM8994)	+= wm8994-gpio.o
+obj-$(CONFIG_GPIO_SCH)		+= sch_gpio.o
\ No newline at end of file

drivers/gpio/sch_gpio.c

+/*
+ *  sch_gpio.c - GPIO interface for Intel Poulsbo SCH
+ *
+ *  Copyright (c) 2010 CompuLab Ltd
+ *  Author: Denis Turischev <denis@compulab.co.il>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License 2 as published
+ *  by the Free Software Foundation.
+ *
+ *  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; see the file COPYING.  If not, write to
+ *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/io.h>
+#include <linux/errno.h>
+#include <linux/acpi.h>
+#include <linux/platform_device.h>
+
+#include <linux/gpio.h>
+
+static DEFINE_SPINLOCK(gpio_lock);
+
+#define CGEN	(0x00)
+#define CGIO	(0x04)
+#define CGLV	(0x08)
+
+#define RGEN	(0x20)
+#define RGIO	(0x24)
+#define RGLV	(0x28)
+
+static unsigned short gpio_ba;
+
+static int sch_gpio_core_direction_in(struct gpio_chip *gc, unsigned  gpio_num)
+{
+	u8 curr_dirs;
+	unsigned short offset, bit;
+
+	spin_lock(&gpio_lock);
+
+	offset = CGIO + gpio_num / 8;
+	bit = gpio_num % 8;
+
+	curr_dirs = inb(gpio_ba + offset);
+
+	if (!(curr_dirs & (1 << bit)))
+		outb(curr_dirs | (1 << bit), gpio_ba + offset);
+
+	spin_unlock(&gpio_lock);
+	return 0;
+}
+
+static int sch_gpio_core_get(struct gpio_chip *gc, unsigned gpio_num)
+{
+	int res;
+	unsigned short offset, bit;
+
+	offset = CGLV + gpio_num / 8;
+	bit = gpio_num % 8;
+
+	res = !!(inb(gpio_ba + offset) & (1 << bit));
+	return res;
+}
+
+static void sch_gpio_core_set(struct gpio_chip *gc, unsigned gpio_num, int val)
+{
+	u8 curr_vals;
+	unsigned short offset, bit;
+
+	spin_lock(&gpio_lock);
+
+	offset = CGLV + gpio_num / 8;
+	bit = gpio_num % 8;
+
+	curr_vals = inb(gpio_ba + offset);
+
+	if (val)
+		outb(curr_vals | (1 << bit), gpio_ba + offset);
+	else
+		outb((curr_vals & ~(1 << bit)), gpio_ba + offset);
+	spin_unlock(&gpio_lock);
+}
+
+static int sch_gpio_core_direction_out(struct gpio_chip *gc,
+					unsigned gpio_num, int val)
+{
+	u8 curr_dirs;
+	unsigned short offset, bit;
+
+	sch_gpio_core_set(gc, gpio_num, val);
+
+	spin_lock(&gpio_lock);
+
+	offset = CGIO + gpio_num / 8;
+	bit = gpio_num % 8;
+
+	curr_dirs = inb(gpio_ba + offset);
+	if (curr_dirs & (1 << bit))
+		outb(curr_dirs & ~(1 << bit), gpio_ba + offset);
+
+	spin_unlock(&gpio_lock);
+	return 0;
+}
+
+static struct gpio_chip sch_gpio_core = {
+	.label			= "sch_gpio_core",
+	.owner			= THIS_MODULE,
+	.direction_input	= sch_gpio_core_direction_in,
+	.get			= sch_gpio_core_get,
+	.direction_output	= sch_gpio_core_direction_out,
+	.set			= sch_gpio_core_set,
+};
+
+static int sch_gpio_resume_direction_in(struct gpio_chip *gc,
+					unsigned gpio_num)
+{
+	u8 curr_dirs;
+
+	spin_lock(&gpio_lock);
+
+	curr_dirs = inb(gpio_ba + RGIO);
+
+	if (!(curr_dirs & (1 << gpio_num)))
+		outb(curr_dirs | (1 << gpio_num) , gpio_ba + RGIO);
+
+	spin_unlock(&gpio_lock);
+	return 0;
+}
+
+static int sch_gpio_resume_get(struct gpio_chip *gc, unsigned gpio_num)
+{
+	return !!(inb(gpio_ba + RGLV) & (1 << gpio_num));
+}
+
+static void sch_gpio_resume_set(struct gpio_chip *gc,
+				unsigned gpio_num, int val)
+{
+	u8 curr_vals;
+
+	spin_lock(&gpio_lock);
+
+	curr_vals = inb(gpio_ba + RGLV);
+
+	if (val)
+		outb(curr_vals | (1 << gpio_num), gpio_ba + RGLV);
+	else
+		outb((curr_vals & ~(1 << gpio_num)), gpio_ba + RGLV);
+
+	spin_unlock(&gpio_lock);
+}
+
+static int sch_gpio_resume_direction_out(struct gpio_chip *gc,
+					unsigned gpio_num, int val)
+{
+	u8 curr_dirs;
+
+	sch_gpio_resume_set(gc, gpio_num, val);
+
+	spin_lock(&gpio_lock);
+
+	curr_dirs = inb(gpio_ba + RGIO);
+	if (curr_dirs & (1 << gpio_num))
+		outb(curr_dirs & ~(1 << gpio_num), gpio_ba + RGIO);
+
+	spin_unlock(&gpio_lock);
+	return 0;
+}
+
+static struct gpio_chip sch_gpio_resume = {
+	.label			= "sch_gpio_resume",
+	.owner			= THIS_MODULE,
+	.direction_input	= sch_gpio_resume_direction_in,
+	.get			= sch_gpio_resume_get,
+	.direction_output	= sch_gpio_resume_direction_out,
+	.set			= sch_gpio_resume_set,
+};
+
+static int __devinit sch_gpio_probe(struct platform_device *pdev)
+{
+	struct resource *res;
+	int err;
+
+	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+	if (!res)
+		return -EBUSY;
+
+	if (!request_region(res->start, resource_size(res), pdev->name))
+		return -EBUSY;
+
+	gpio_ba = res->start;
+
+	sch_gpio_core.base = 0;
+	sch_gpio_core.ngpio = 10;
+	sch_gpio_core.dev = &pdev->dev;
+
+	sch_gpio_resume.base = 10;
+	sch_gpio_resume.ngpio = 4;
+	sch_gpio_resume.dev = &pdev->dev;
+
+	err = gpiochip_add(&sch_gpio_core);
+	if (err < 0)
+		goto err_sch_gpio_core;
+
+	err = gpiochip_add(&sch_gpio_resume);
+	if (err < 0)
+		goto err_sch_gpio_resume;
+
+	/*
+	 * GPIO[6:0] enabled by default
+	 * GPIO7 is configured by the CMC as SLPIOVR
+	 * Enable GPIO[9:8] core powered gpios explicitly
+	 */
+	outb(0x3, gpio_ba + CGEN + 1);
+	/*
+	 * SUS_GPIO[2:0] enabled by default
+	 * Enable SUS_GPIO3 resume powered gpio explicitly
+	 */
+	outb(0x8, gpio_ba + RGEN);
+
+	return 0;
+
+err_sch_gpio_resume:
+	err = gpiochip_remove(&sch_gpio_core);
+	if (err)
+		dev_err(&pdev->dev, "%s failed, %d\n",
+				"gpiochip_remove()", err);
+
+err_sch_gpio_core:
+	release_region(res->start, resource_size(res));
+	gpio_ba = 0;
+
+	return err;
+}
+
+static int __devexit sch_gpio_remove(struct platform_device *pdev)
+{
+	struct resource *res;
+	if (gpio_ba) {
+		int err;
+
+		err  = gpiochip_remove(&sch_gpio_core);
+		if (err)
+			dev_err(&pdev->dev, "%s failed, %d\n",
+				"gpiochip_remove()", err);
+		err = gpiochip_remove(&sch_gpio_resume);
+		if (err)
+			dev_err(&pdev->dev, "%s failed, %d\n",
+				"gpiochip_remove()", err);
+
+		res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+
+		release_region(res->start, resource_size(res));
+		gpio_ba = 0;
+
+		return err;
+	}
+
+	return 0;
+}
+
+static struct platform_driver sch_gpio_driver = {
+	.driver = {
+		.name = "sch_gpio",
+		.owner = THIS_MODULE,
+	},
+	.probe		= sch_gpio_probe,
+	.remove		= __devexit_p(sch_gpio_remove),
+};
+
+static int __init sch_gpio_init(void)
+{
+	return platform_driver_register(&sch_gpio_driver);
+}
+
+static void __exit sch_gpio_exit(void)
+{
+	platform_driver_unregister(&sch_gpio_driver);
+}
+
+module_init(sch_gpio_init);
+module_exit(sch_gpio_exit);
+
+MODULE_AUTHOR("Denis Turischev <denis@compulab.co.il>");
+MODULE_DESCRIPTION("GPIO interface for Intel Poulsbo SCH");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:sch_gpio");

drivers/gpio/wm831x-gpio.c

@@ -38,10 +38,14 @@ static int wm831x_gpio_direction_in(struct gpio_chip *chip, unsigned offset)
 {
 	struct wm831x_gpio *wm831x_gpio = to_wm831x_gpio(chip);
 	struct wm831x *wm831x = wm831x_gpio->wm831x;
+	int val = WM831X_GPN_DIR;
+
+	if (wm831x->has_gpio_ena)
+		val |= WM831X_GPN_TRI;
 
 	return wm831x_set_bits(wm831x, WM831X_GPIO1_CONTROL + offset,
-			       WM831X_GPN_DIR | WM831X_GPN_TRI,
-			       WM831X_GPN_DIR);
+			       WM831X_GPN_DIR | WM831X_GPN_TRI |
+			       WM831X_GPN_FN_MASK, val);
 }
 
 static int wm831x_gpio_get(struct gpio_chip *chip, unsigned offset)
@@ -60,23 +64,36 @@ static int wm831x_gpio_get(struct gpio_chip *chip, unsigned offset)
 		return 0;
 }
 
-static int wm831x_gpio_direction_out(struct gpio_chip *chip,
-				     unsigned offset, int value)
+static void wm831x_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
 {
 	struct wm831x_gpio *wm831x_gpio = to_wm831x_gpio(chip);
 	struct wm831x *wm831x = wm831x_gpio->wm831x;
 
-	return wm831x_set_bits(wm831x, WM831X_GPIO1_CONTROL + offset,
-			       WM831X_GPN_DIR | WM831X_GPN_TRI, 0);
+	wm831x_set_bits(wm831x, WM831X_GPIO_LEVEL, 1 << offset,
+			value << offset);
 }
 
-static void wm831x_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
+static int wm831x_gpio_direction_out(struct gpio_chip *chip,
+				     unsigned offset, int value)
 {
 	struct wm831x_gpio *wm831x_gpio = to_wm831x_gpio(chip);
 	struct wm831x *wm831x = wm831x_gpio->wm831x;
+	int val = 0;
+	int ret;
 
-	wm831x_set_bits(wm831x, WM831X_GPIO_LEVEL, 1 << offset,
-			value << offset);
+	if (wm831x->has_gpio_ena)
+		val |= WM831X_GPN_TRI;
+
+	ret = wm831x_set_bits(wm831x, WM831X_GPIO1_CONTROL + offset,
+			      WM831X_GPN_DIR | WM831X_GPN_TRI |
+			      WM831X_GPN_FN_MASK, val);
+	if (ret < 0)
+		return ret;
+
+	/* Can only set GPIO state once it's in output mode */
+	wm831x_gpio_set(chip, offset, value);
+
+	return 0;
 }
 
 static int wm831x_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
@@ -95,7 +112,7 @@ static void wm831x_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)
 {
 	struct wm831x_gpio *wm831x_gpio = to_wm831x_gpio(chip);
 	struct wm831x *wm831x = wm831x_gpio->wm831x;
-	int i;
+	int i, tristated;
 
 	for (i = 0; i < chip->ngpio; i++) {
 		int gpio = i + chip->base;
@@ -162,15 +179,19 @@ static void wm831x_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)
 			break;
 		}
 
+		tristated = reg & WM831X_GPN_TRI;
+		if (wm831x->has_gpio_ena)
+			tristated = !tristated;
+
 		seq_printf(s, " %s %s %s %s%s\n"
 			   "                                  %s%s (0x%4x)\n",
 			   reg & WM831X_GPN_DIR ? "in" : "out",
 			   wm831x_gpio_get(chip, i) ? "high" : "low",
 			   pull,
 			   powerdomain,
-			   reg & WM831X_GPN_POL ? " inverted" : "",
+			   reg & WM831X_GPN_POL ? "" : " inverted",
 			   reg & WM831X_GPN_OD ? "open-drain" : "CMOS",
-			   reg & WM831X_GPN_TRI ? " tristated" : "",
+			   tristated ? " tristated" : "",
 			   reg);
 	}
 }

drivers/gpio/wm8350-gpiolib.c

+/*
+ * wm835x-gpiolib.c  --  gpiolib support for Wolfson WM835x PMICs
+ *
+ * Copyright 2009 Wolfson Microelectronics PLC.
+ *
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.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.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/gpio.h>
+#include <linux/mfd/core.h>
+#include <linux/platform_device.h>
+#include <linux/seq_file.h>
+
+#include <linux/mfd/wm8350/core.h>
+#include <linux/mfd/wm8350/gpio.h>
+
+struct wm8350_gpio_data {
+	struct wm8350 *wm8350;
+	struct gpio_chip gpio_chip;
+};
+
+static inline struct wm8350_gpio_data *to_wm8350_gpio(struct gpio_chip *chip)
+{
+	return container_of(chip, struct wm8350_gpio_data, gpio_chip);
+}
+
+static int wm8350_gpio_direction_in(struct gpio_chip *chip, unsigned offset)
+{
+	struct wm8350_gpio_data *wm8350_gpio = to_wm8350_gpio(chip);
+	struct wm8350 *wm8350 = wm8350_gpio->wm8350;
+
+	return wm8350_set_bits(wm8350, WM8350_GPIO_CONFIGURATION_I_O,
+			       1 << offset);
+}
+
+static int wm8350_gpio_get(struct gpio_chip *chip, unsigned offset)
+{
+	struct wm8350_gpio_data *wm8350_gpio = to_wm8350_gpio(chip);
+	struct wm8350 *wm8350 = wm8350_gpio->wm8350;
+	int ret;
+
+	ret = wm8350_reg_read(wm8350, WM8350_GPIO_LEVEL);
+	if (ret < 0)
+		return ret;
+
+	if (ret & (1 << offset))
+		return 1;
+	else
+		return 0;
+}
+
+static void wm8350_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
+{
+	struct wm8350_gpio_data *wm8350_gpio = to_wm8350_gpio(chip);
+	struct wm8350 *wm8350 = wm8350_gpio->wm8350;
+
+	if (value)
+		wm8350_set_bits(wm8350, WM8350_GPIO_LEVEL, 1 << offset);
+	else
+		wm8350_clear_bits(wm8350, WM8350_GPIO_LEVEL, 1 << offset);
+}
+
+static int wm8350_gpio_direction_out(struct gpio_chip *chip,
+				     unsigned offset, int value)
+{
+	struct wm8350_gpio_data *wm8350_gpio = to_wm8350_gpio(chip);
+	struct wm8350 *wm8350 = wm8350_gpio->wm8350;
+	int ret;
+
+	ret = wm8350_clear_bits(wm8350, WM8350_GPIO_CONFIGURATION_I_O,
+				1 << offset);
+	if (ret < 0)
+		return ret;
+
+	/* Don't have an atomic direction/value setup */
+	wm8350_gpio_set(chip, offset, value);
+
+	return 0;
+}
+
+static int wm8350_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
+{
+	struct wm8350_gpio_data *wm8350_gpio = to_wm8350_gpio(chip);
+	struct wm8350 *wm8350 = wm8350_gpio->wm8350;
+
+	if (!wm8350->irq_base)
+		return -EINVAL;
+
+	return wm8350->irq_base + WM8350_IRQ_GPIO(offset);
+}
+
+static struct gpio_chip template_chip = {
+	.label			= "wm8350",
+	.owner			= THIS_MODULE,
+	.direction_input	= wm8350_gpio_direction_in,
+	.get			= wm8350_gpio_get,
+	.direction_output	= wm8350_gpio_direction_out,
+	.set			= wm8350_gpio_set,
+	.to_irq			= wm8350_gpio_to_irq,
+	.can_sleep		= 1,
+};
+
+static int __devinit wm8350_gpio_probe(struct platform_device *pdev)
+{
+	struct wm8350 *wm8350 = dev_get_drvdata(pdev->dev.parent);
+	struct wm8350_platform_data *pdata = wm8350->dev->platform_data;
+	struct wm8350_gpio_data *wm8350_gpio;
+	int ret;
+
+	wm8350_gpio = kzalloc(sizeof(*wm8350_gpio), GFP_KERNEL);
+	if (wm8350_gpio == NULL)
+		return -ENOMEM;
+
+	wm8350_gpio->wm8350 = wm8350;
+	wm8350_gpio->gpio_chip = template_chip;
+	wm8350_gpio->gpio_chip.ngpio = 13;
+	wm8350_gpio->gpio_chip.dev = &pdev->dev;
+	if (pdata && pdata->gpio_base)
+		wm8350_gpio->gpio_chip.base = pdata->gpio_base;
+	else
+		wm8350_gpio->gpio_chip.base = -1;
+
+	ret = gpiochip_add(&wm8350_gpio->gpio_chip);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "Could not register gpiochip, %d\n",
+			ret);
+		goto err;
+	}
+
+	platform_set_drvdata(pdev, wm8350_gpio);
+
+	return ret;
+
+err:
+	kfree(wm8350_gpio);
+	return ret;
+}
+
+static int __devexit wm8350_gpio_remove(struct platform_device *pdev)
+{
+	struct wm8350_gpio_data *wm8350_gpio = platform_get_drvdata(pdev);
+	int ret;
+
+	ret = gpiochip_remove(&wm8350_gpio->gpio_chip);
+	if (ret == 0)
+		kfree(wm8350_gpio);
+
+	return ret;
+}
+
+static struct platform_driver wm8350_gpio_driver = {
+	.driver.name	= "wm8350-gpio",
+	.driver.owner	= THIS_MODULE,
+	.probe		= wm8350_gpio_probe,
+	.remove		= __devexit_p(wm8350_gpio_remove),
+};
+
+static int __init wm8350_gpio_init(void)
+{
+	return platform_driver_register(&wm8350_gpio_driver);
+}
+subsys_initcall(wm8350_gpio_init);
+
+static void __exit wm8350_gpio_exit(void)
+{
+	platform_driver_unregister(&wm8350_gpio_driver);
+}
+module_exit(wm8350_gpio_exit);
+
+MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
+MODULE_DESCRIPTION("GPIO interface for WM8350 PMICs");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:wm8350-gpio");

drivers/gpio/wm8994-gpio.c

+/*
+ * wm8994-gpio.c  --  gpiolib support for Wolfson WM8994
+ *
+ * Copyright 2009 Wolfson Microelectronics PLC.
+ *
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.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.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/gpio.h>
+#include <linux/mfd/core.h>
+#include <linux/platform_device.h>
+#include <linux/seq_file.h>
+
+#include <linux/mfd/wm8994/core.h>
+#include <linux/mfd/wm8994/pdata.h>
+#include <linux/mfd/wm8994/gpio.h>
+#include <linux/mfd/wm8994/registers.h>
+
+struct wm8994_gpio {
+	struct wm8994 *wm8994;
+	struct gpio_chip gpio_chip;
+};
+
+static inline struct wm8994_gpio *to_wm8994_gpio(struct gpio_chip *chip)
+{
+	return container_of(chip, struct wm8994_gpio, gpio_chip);
+}
+
+static int wm8994_gpio_direction_in(struct gpio_chip *chip, unsigned offset)
+{
+	struct wm8994_gpio *wm8994_gpio = to_wm8994_gpio(chip);
+	struct wm8994 *wm8994 = wm8994_gpio->wm8994;
+
+	return wm8994_set_bits(wm8994, WM8994_GPIO_1 + offset,
+			       WM8994_GPN_DIR, WM8994_GPN_DIR);
+}
+
+static int wm8994_gpio_get(struct gpio_chip *chip, unsigned offset)
+{
+	struct wm8994_gpio *wm8994_gpio = to_wm8994_gpio(chip);
+	struct wm8994 *wm8994 = wm8994_gpio->wm8994;
+	int ret;
+
+	ret = wm8994_reg_read(wm8994, WM8994_GPIO_1 + offset);
+	if (ret < 0)
+		return ret;
+
+	if (ret & WM8994_GPN_LVL)
+		return 1;
+	else
+		return 0;
+}
+
+static int wm8994_gpio_direction_out(struct gpio_chip *chip,
+				     unsigned offset, int value)
+{
+	struct wm8994_gpio *wm8994_gpio = to_wm8994_gpio(chip);
+	struct wm8994 *wm8994 = wm8994_gpio->wm8994;
+
+	return wm8994_set_bits(wm8994, WM8994_GPIO_1 + offset,
+			       WM8994_GPN_DIR, 0);
+}
+
+static void wm8994_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
+{
+	struct wm8994_gpio *wm8994_gpio = to_wm8994_gpio(chip);
+	struct wm8994 *wm8994 = wm8994_gpio->wm8994;
+
+	if (value)
+		value = WM8994_GPN_LVL;
+
+	wm8994_set_bits(wm8994, WM8994_GPIO_1 + offset, WM8994_GPN_LVL, value);
+}
+
+#ifdef CONFIG_DEBUG_FS
+static void wm8994_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)
+{
+	struct wm8994_gpio *wm8994_gpio = to_wm8994_gpio(chip);
+	struct wm8994 *wm8994 = wm8994_gpio->wm8994;
+	int i;
+
+	for (i = 0; i < chip->ngpio; i++) {
+		int gpio = i + chip->base;
+		int reg;
+		const char *label;
+
+		/* We report the GPIO even if it's not requested since
+		 * we're also reporting things like alternate
+		 * functions which apply even when the GPIO is not in
+		 * use as a GPIO.
+		 */
+		label = gpiochip_is_requested(chip, i);
+		if (!label)
+			label = "Unrequested";
+
+		seq_printf(s, " gpio-%-3d (%-20.20s) ", gpio, label);
+
+		reg = wm8994_reg_read(wm8994, WM8994_GPIO_1 + i);
+		if (reg < 0) {
+			dev_err(wm8994->dev,
+				"GPIO control %d read failed: %d\n",
+				gpio, reg);
+			seq_printf(s, "\n");
+			continue;
+		}
+
+		/* No decode yet; note that GPIO2 is special */
+		seq_printf(s, "(%x)\n", reg);
+	}
+}
+#else
+#define wm8994_gpio_dbg_show NULL
+#endif
+
+static struct gpio_chip template_chip = {
+	.label			= "wm8994",
+	.owner			= THIS_MODULE,
+	.direction_input	= wm8994_gpio_direction_in,
+	.get			= wm8994_gpio_get,
+	.direction_output	= wm8994_gpio_direction_out,
+	.set			= wm8994_gpio_set,
+	.dbg_show		= wm8994_gpio_dbg_show,
+	.can_sleep		= 1,
+};
+
+static int __devinit wm8994_gpio_probe(struct platform_device *pdev)
+{
+	struct wm8994 *wm8994 = dev_get_drvdata(pdev->dev.parent);
+	struct wm8994_pdata *pdata = wm8994->dev->platform_data;
+	struct wm8994_gpio *wm8994_gpio;
+	int ret;
+
+	wm8994_gpio = kzalloc(sizeof(*wm8994_gpio), GFP_KERNEL);
+	if (wm8994_gpio == NULL)
+		return -ENOMEM;
+
+	wm8994_gpio->wm8994 = wm8994;
+	wm8994_gpio->gpio_chip = template_chip;
+	wm8994_gpio->gpio_chip.ngpio = WM8994_GPIO_MAX;
+	wm8994_gpio->gpio_chip.dev = &pdev->dev;
+	if (pdata && pdata->gpio_base)
+		wm8994_gpio->gpio_chip.base = pdata->gpio_base;
+	else
+		wm8994_gpio->gpio_chip.base = -1;
+
+	ret = gpiochip_add(&wm8994_gpio->gpio_chip);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "Could not register gpiochip, %d\n",
+			ret);
+		goto err;
+	}
+
+	platform_set_drvdata(pdev, wm8994_gpio);
+
+	return ret;
+
+err:
+	kfree(wm8994_gpio);
+	return ret;
+}
+
+static int __devexit wm8994_gpio_remove(struct platform_device *pdev)
+{
+	struct wm8994_gpio *wm8994_gpio = platform_get_drvdata(pdev);
+	int ret;
+
+	ret = gpiochip_remove(&wm8994_gpio->gpio_chip);
+	if (ret == 0)
+		kfree(wm8994_gpio);
+
+	return ret;
+}
+
+static struct platform_driver wm8994_gpio_driver = {
+	.driver.name	= "wm8994-gpio",
+	.driver.owner	= THIS_MODULE,
+	.probe		= wm8994_gpio_probe,
+	.remove		= __devexit_p(wm8994_gpio_remove),
+};
+
+static int __init wm8994_gpio_init(void)
+{
+	return platform_driver_register(&wm8994_gpio_driver);
+}
+subsys_initcall(wm8994_gpio_init);
+
+static void __exit wm8994_gpio_exit(void)
+{
+	platform_driver_unregister(&wm8994_gpio_driver);
+}
+module_exit(wm8994_gpio_exit);
+
+MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
+MODULE_DESCRIPTION("GPIO interface for WM8994");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:wm8994-gpio");

drivers/i2c/busses/Kconfig

@@ -106,6 +106,8 @@ config I2C_I801
 config I2C_ISCH
 	tristate "Intel SCH SMBus 1.0"
 	depends on PCI
+	select MFD_CORE
+	select LPC_SCH
 	help
 	  Say Y here if you want to use SMBus controller on the Intel SCH
 	  based systems.

drivers/i2c/busses/i2c-isch.c

@@ -27,7 +27,7 @@
 */
 
 #include <linux/module.h>
-#include <linux/pci.h>
+#include <linux/platform_device.h>
 #include <linux/kernel.h>
 #include <linux/delay.h>
 #include <linux/stddef.h>
@@ -46,12 +46,6 @@
 #define SMBHSTDAT1	(7 + sch_smba)
 #define SMBBLKDAT	(0x20 + sch_smba)
 
-/* count for request_region */
-#define SMBIOSIZE	64
-
-/* PCI Address Constants */
-#define SMBBA_SCH	0x40
-
 /* Other settings */
 #define MAX_TIMEOUT	500
 
@@ -63,7 +57,6 @@
 #define SCH_BLOCK_DATA		0x05
 
 static unsigned short sch_smba;
-static struct pci_driver sch_driver;
 static struct i2c_adapter sch_adapter;
 
 /*
@@ -256,37 +249,23 @@ static struct i2c_adapter sch_adapter = {
 	.algo		= &smbus_algorithm,
 };
 
-static const struct pci_device_id sch_ids[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SCH_LPC) },
-	{ 0, }
-};
-
-MODULE_DEVICE_TABLE(pci, sch_ids);
-
-static int __devinit sch_probe(struct pci_dev *dev,
-				const struct pci_device_id *id)
+static int __devinit smbus_sch_probe(struct platform_device *dev)
 {
+	struct resource *res;
 	int retval;
-	unsigned int smba;
 
-	pci_read_config_dword(dev, SMBBA_SCH, &smba);
-	if (!(smba & (1 << 31))) {
-		dev_err(&dev->dev, "SMBus I/O space disabled!\n");
-		return -ENODEV;
-	}
+	res = platform_get_resource(dev, IORESOURCE_IO, 0);
+	if (!res)
+		return -EBUSY;
 
-	sch_smba = (unsigned short)smba;
-	if (sch_smba == 0) {
-		dev_err(&dev->dev, "SMBus base address uninitialized!\n");
-		return -ENODEV;
-	}
-	if (acpi_check_region(sch_smba, SMBIOSIZE, sch_driver.name))
-		return -ENODEV;
-	if (!request_region(sch_smba, SMBIOSIZE, sch_driver.name)) {
+	if (!request_region(res->start, resource_size(res), dev->name)) {
 		dev_err(&dev->dev, "SMBus region 0x%x already in use!\n",
 			sch_smba);
 		return -EBUSY;
 	}
+
+	sch_smba = res->start;
+
 	dev_dbg(&dev->dev, "SMBA = 0x%X\n", sch_smba);
 
 	/* set up the sysfs linkage to our parent device */
@@ -298,37 +277,43 @@ static int __devinit sch_probe(struct pci_dev *dev,
 	retval = i2c_add_adapter(&sch_adapter);
 	if (retval) {
 		dev_err(&dev->dev, "Couldn't register adapter!\n");
-		release_region(sch_smba, SMBIOSIZE);
+		release_region(res->start, resource_size(res));
 		sch_smba = 0;
 	}
 
 	return retval;
 }
 
-static void __devexit sch_remove(struct pci_dev *dev)
+static int __devexit smbus_sch_remove(struct platform_device *pdev)
 {
+	struct resource *res;
 	if (sch_smba) {
 		i2c_del_adapter(&sch_adapter);
-		release_region(sch_smba, SMBIOSIZE);
+		res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+		release_region(res->start, resource_size(res));
 		sch_smba = 0;
 	}
+
+	return 0;
 }
 
-static struct pci_driver sch_driver = {
-	.name		= "isch_smbus",
-	.id_table	= sch_ids,
-	.probe		= sch_probe,
-	.remove		= __devexit_p(sch_remove),
+static struct platform_driver smbus_sch_driver = {
+	.driver = {
+		.name = "isch_smbus",
+		.owner = THIS_MODULE,
+	},
+	.probe		= smbus_sch_probe,
+	.remove		= __devexit_p(smbus_sch_remove),
 };
 
 static int __init i2c_sch_init(void)
 {
-	return pci_register_driver(&sch_driver);
+	return platform_driver_register(&smbus_sch_driver);
 }
 
 static void __exit i2c_sch_exit(void)
 {
-	pci_unregister_driver(&sch_driver);
+	platform_driver_unregister(&smbus_sch_driver);
 }
 
 MODULE_AUTHOR("Jacob Pan <jacob.jun.pan@intel.com>");
@@ -337,3 +322,4 @@ MODULE_LICENSE("GPL");
 
 module_init(i2c_sch_init);
 module_exit(i2c_sch_exit);
+MODULE_ALIAS("platform:isch_smbus");

drivers/input/misc/88pm860x_onkey.c

+/*
+ * 88pm860x_onkey.c - Marvell 88PM860x ONKEY driver
+ *
+ * Copyright (C) 2009-2010 Marvell International Ltd.
+ *      Haojian Zhuang <haojian.zhuang@marvell.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file "COPYING" in the main directory of this
+ * archive for more details.
+ *
+ * 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/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/mfd/88pm860x.h>
+
+#define PM8607_WAKEUP		0x0b
+
+#define LONG_ONKEY_EN		(1 << 1)
+#define ONKEY_STATUS		(1 << 0)
+
+struct pm860x_onkey_info {
+	struct input_dev	*idev;
+	struct pm860x_chip	*chip;
+	struct i2c_client	*i2c;
+	struct device		*dev;
+	int			irq;
+};
+
+/* 88PM860x gives us an interrupt when ONKEY is held */
+static irqreturn_t pm860x_onkey_handler(int irq, void *data)
+{
+	struct pm860x_onkey_info *info = data;
+	int ret;
+
+	ret = pm860x_reg_read(info->i2c, PM8607_STATUS_2);
+	ret &= ONKEY_STATUS;
+	input_report_key(info->idev, KEY_POWER, ret);
+	input_sync(info->idev);
+
+	/* Enable 8-second long onkey detection */
+	pm860x_set_bits(info->i2c, PM8607_WAKEUP, 3, LONG_ONKEY_EN);
+	return IRQ_HANDLED;
+}
+
+static int __devinit pm860x_onkey_probe(struct platform_device *pdev)
+{
+	struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
+	struct pm860x_onkey_info *info;
+	int irq, ret;
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0) {
+		dev_err(&pdev->dev, "No IRQ resource!\n");
+		return -EINVAL;
+	}
+
+	info = kzalloc(sizeof(struct pm860x_onkey_info), GFP_KERNEL);
+	if (!info)
+		return -ENOMEM;
+	info->chip = chip;
+	info->i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
+	info->dev = &pdev->dev;
+	info->irq = irq + chip->irq_base;
+
+	info->idev = input_allocate_device();
+	if (!info->idev) {
+		dev_err(chip->dev, "Failed to allocate input dev\n");
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	info->idev->name = "88pm860x_on";
+	info->idev->phys = "88pm860x_on/input0";
+	info->idev->id.bustype = BUS_I2C;
+	info->idev->dev.parent = &pdev->dev;
+	info->irq = irq;
+	info->idev->evbit[0] = BIT_MASK(EV_KEY);
+	info->idev->keybit[BIT_WORD(KEY_POWER)] = BIT_MASK(KEY_POWER);
+
+	ret = input_register_device(info->idev);
+	if (ret) {
+		dev_err(chip->dev, "Can't register input device: %d\n", ret);
+		goto out_reg;
+	}
+
+	ret = request_threaded_irq(info->irq, NULL, pm860x_onkey_handler,
+				   IRQF_ONESHOT, "onkey", info);
+	if (ret < 0) {
+		dev_err(chip->dev, "Failed to request IRQ: #%d: %d\n",
+			info->irq, ret);
+		goto out_irq;
+	}
+
+	platform_set_drvdata(pdev, info);
+	return 0;
+
+out_irq:
+	input_unregister_device(info->idev);
+	kfree(info);
+	return ret;
+
+out_reg:
+	input_free_device(info->idev);
+out:
+	kfree(info);
+	return ret;
+}
+
+static int __devexit pm860x_onkey_remove(struct platform_device *pdev)
+{
+	struct pm860x_onkey_info *info = platform_get_drvdata(pdev);
+
+	free_irq(info->irq, info);
+	input_unregister_device(info->idev);
+	kfree(info);
+	return 0;
+}
+
+static struct platform_driver pm860x_onkey_driver = {
+	.driver		= {
+		.name	= "88pm860x-onkey",
+		.owner	= THIS_MODULE,
+	},
+	.probe		= pm860x_onkey_probe,
+	.remove		= __devexit_p(pm860x_onkey_remove),
+};
+
+static int __init pm860x_onkey_init(void)
+{
+	return platform_driver_register(&pm860x_onkey_driver);
+}
+module_init(pm860x_onkey_init);
+
+static void __exit pm860x_onkey_exit(void)
+{
+	platform_driver_unregister(&pm860x_onkey_driver);
+}
+module_exit(pm860x_onkey_exit);
+
+MODULE_DESCRIPTION("Marvell 88PM860x ONKEY driver");
+MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
+MODULE_LICENSE("GPL");

drivers/input/misc/Kconfig

@@ -12,6 +12,16 @@ menuconfig INPUT_MISC
 
 if INPUT_MISC
 
+config INPUT_88PM860X_ONKEY
+	tristate "88PM860x ONKEY support"
+	depends on MFD_88PM860X
+	help
+	  Support the ONKEY of Marvell 88PM860x PMICs as an input device
+	  reporting power button status.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called 88pm860x_onkey.
+
 config INPUT_PCSPKR
 	tristate "PC Speaker support"
 	depends on PCSPKR_PLATFORM

drivers/input/misc/Makefile

@@ -4,6 +4,7 @@
 
 # Each configuration option enables a list of files.
 
+obj-$(CONFIG_INPUT_88PM860X_ONKEY)	+= 88pm860x_onkey.o
 obj-$(CONFIG_INPUT_APANEL)		+= apanel.o
 obj-$(CONFIG_INPUT_ATI_REMOTE)		+= ati_remote.o
 obj-$(CONFIG_INPUT_ATI_REMOTE2)		+= ati_remote2.o

drivers/input/touchscreen/88pm860x-ts.c

+/*
+ * Touchscreen driver for Marvell 88PM860x
+ *
+ * Copyright (C) 2009 Marvell International Ltd.
+ * 	Haojian Zhuang <haojian.zhuang@marvell.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/mfd/88pm860x.h>
+
+#define MEAS_LEN		(8)
+#define ACCURATE_BIT		(12)
+
+/* touch register */
+#define MEAS_EN3		(0x52)
+
+#define MEAS_TSIX_1		(0x8D)
+#define MEAS_TSIX_2		(0x8E)
+#define MEAS_TSIY_1		(0x8F)
+#define MEAS_TSIY_2		(0x90)
+#define MEAS_TSIZ1_1		(0x91)
+#define MEAS_TSIZ1_2		(0x92)
+#define MEAS_TSIZ2_1		(0x93)
+#define MEAS_TSIZ2_2		(0x94)
+
+/* bit definitions of touch */
+#define MEAS_PD_EN		(1 << 3)
+#define MEAS_TSIX_EN		(1 << 4)
+#define MEAS_TSIY_EN		(1 << 5)
+#define MEAS_TSIZ1_EN		(1 << 6)
+#define MEAS_TSIZ2_EN		(1 << 7)
+
+struct pm860x_touch {
+	struct input_dev *idev;
+	struct i2c_client *i2c;
+	struct pm860x_chip *chip;
+	int irq;
+	int res_x;		/* resistor of Xplate */
+};
+
+static irqreturn_t pm860x_touch_handler(int irq, void *data)
+{
+	struct pm860x_touch *touch = data;
+	struct pm860x_chip *chip = touch->chip;
+	unsigned char buf[MEAS_LEN];
+	int x, y, pen_down;
+	int z1, z2, rt = 0;
+	int ret;
+
+	ret = pm860x_bulk_read(touch->i2c, MEAS_TSIX_1, MEAS_LEN, buf);
+	if (ret < 0)
+		goto out;
+
+	pen_down = buf[1] & (1 << 6);
+	x = ((buf[0] & 0xFF) << 4) | (buf[1] & 0x0F);
+	y = ((buf[2] & 0xFF) << 4) | (buf[3] & 0x0F);
+	z1 = ((buf[4] & 0xFF) << 4) | (buf[5] & 0x0F);
+	z2 = ((buf[6] & 0xFF) << 4) | (buf[7] & 0x0F);
+
+	if (pen_down) {
+		if ((x != 0) && (z1 != 0) && (touch->res_x != 0)) {
+			rt = z2 / z1 - 1;
+			rt = (rt * touch->res_x * x) >> ACCURATE_BIT;
+			dev_dbg(chip->dev, "z1:%d, z2:%d, rt:%d\n",
+				z1, z2, rt);
+		}
+		input_report_abs(touch->idev, ABS_X, x);
+		input_report_abs(touch->idev, ABS_Y, y);
+		input_report_abs(touch->idev, ABS_PRESSURE, rt);
+		input_report_key(touch->idev, BTN_TOUCH, 1);
+		dev_dbg(chip->dev, "pen down at [%d, %d].\n", x, y);
+	} else {
+		input_report_abs(touch->idev, ABS_PRESSURE, 0);
+		input_report_key(touch->idev, BTN_TOUCH, 0);
+		dev_dbg(chip->dev, "pen release\n");
+	}
+	input_sync(touch->idev);
+
+out:
+	return IRQ_HANDLED;
+}
+
+static int pm860x_touch_open(struct input_dev *dev)
+{
+	struct pm860x_touch *touch = input_get_drvdata(dev);
+	int data, ret;
+
+	data = MEAS_PD_EN | MEAS_TSIX_EN | MEAS_TSIY_EN
+		| MEAS_TSIZ1_EN | MEAS_TSIZ2_EN;
+	ret = pm860x_set_bits(touch->i2c, MEAS_EN3, data, data);
+	if (ret < 0)
+		goto out;
+	return 0;
+out:
+	return ret;
+}
+
+static void pm860x_touch_close(struct input_dev *dev)
+{
+	struct pm860x_touch *touch = input_get_drvdata(dev);
+	int data;
+
+	data = MEAS_PD_EN | MEAS_TSIX_EN | MEAS_TSIY_EN
+		| MEAS_TSIZ1_EN | MEAS_TSIZ2_EN;
+	pm860x_set_bits(touch->i2c, MEAS_EN3, data, 0);
+}
+
+static int __devinit pm860x_touch_probe(struct platform_device *pdev)
+{
+	struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
+	struct pm860x_platform_data *pm860x_pdata =		\
+				pdev->dev.parent->platform_data;
+	struct pm860x_touch_pdata *pdata = NULL;
+	struct pm860x_touch *touch;
+	int irq, ret;
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0) {
+		dev_err(&pdev->dev, "No IRQ resource!\n");
+		return -EINVAL;
+	}
+
+	if (!pm860x_pdata) {
+		dev_err(&pdev->dev, "platform data is missing\n");
+		return -EINVAL;
+	}
+
+	pdata = pm860x_pdata->touch;
+	if (!pdata) {
+		dev_err(&pdev->dev, "touchscreen data is missing\n");
+		return -EINVAL;
+	}
+
+	touch = kzalloc(sizeof(struct pm860x_touch), GFP_KERNEL);
+	if (touch == NULL)
+		return -ENOMEM;
+	dev_set_drvdata(&pdev->dev, touch);
+
+	touch->idev = input_allocate_device();
+	if (touch->idev == NULL) {
+		dev_err(&pdev->dev, "Failed to allocate input device!\n");
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	touch->idev->name = "88pm860x-touch";
+	touch->idev->phys = "88pm860x/input0";
+	touch->idev->id.bustype = BUS_I2C;
+	touch->idev->dev.parent = &pdev->dev;
+	touch->idev->open = pm860x_touch_open;
+	touch->idev->close = pm860x_touch_close;
+	touch->chip = chip;
+	touch->i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
+	touch->irq = irq + chip->irq_base;
+	touch->res_x = pdata->res_x;
+	input_set_drvdata(touch->idev, touch);
+
+	ret = request_threaded_irq(touch->irq, NULL, pm860x_touch_handler,
+				   IRQF_ONESHOT, "touch", touch);
+	if (ret < 0)
+		goto out_irq;
+
+	__set_bit(EV_ABS, touch->idev->evbit);
+	__set_bit(ABS_X, touch->idev->absbit);
+	__set_bit(ABS_Y, touch->idev->absbit);
+	__set_bit(ABS_PRESSURE, touch->idev->absbit);
+	__set_bit(EV_SYN, touch->idev->evbit);
+	__set_bit(EV_KEY, touch->idev->evbit);
+	__set_bit(BTN_TOUCH, touch->idev->keybit);
+
+	input_set_abs_params(touch->idev, ABS_X, 0, 1 << ACCURATE_BIT, 0, 0);
+	input_set_abs_params(touch->idev, ABS_Y, 0, 1 << ACCURATE_BIT, 0, 0);
+	input_set_abs_params(touch->idev, ABS_PRESSURE, 0, 1 << ACCURATE_BIT,
+				0, 0);
+
+	ret = input_register_device(touch->idev);
+	if (ret < 0) {
+		dev_err(chip->dev, "Failed to register touch!\n");
+		goto out_rg;
+	}
+
+	platform_set_drvdata(pdev, touch);
+	return 0;
+out_rg:
+	free_irq(touch->irq, touch);
+out_irq:
+	input_free_device(touch->idev);
+out:
+	kfree(touch);
+	return ret;
+}
+
+static int __devexit pm860x_touch_remove(struct platform_device *pdev)
+{
+	struct pm860x_touch *touch = platform_get_drvdata(pdev);
+
+	input_unregister_device(touch->idev);
+	free_irq(touch->irq, touch);
+	platform_set_drvdata(pdev, NULL);
+	kfree(touch);
+	return 0;
+}
+
+static struct platform_driver pm860x_touch_driver = {
+	.driver	= {
+		.name	= "88pm860x-touch",
+		.owner	= THIS_MODULE,
+	},
+	.probe	= pm860x_touch_probe,
+	.remove	= __devexit_p(pm860x_touch_remove),
+};
+
+static int __init pm860x_touch_init(void)
+{
+	return platform_driver_register(&pm860x_touch_driver);
+}
+module_init(pm860x_touch_init);
+
+static void __exit pm860x_touch_exit(void)
+{
+	platform_driver_unregister(&pm860x_touch_driver);
+}
+module_exit(pm860x_touch_exit);
+
+MODULE_DESCRIPTION("Touchscreen driver for Marvell Semiconductor 88PM860x");
+MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:88pm860x-touch");
+

drivers/input/touchscreen/Kconfig

@@ -11,6 +11,18 @@ menuconfig INPUT_TOUCHSCREEN
 
 if INPUT_TOUCHSCREEN
 
+config TOUCHSCREEN_88PM860X
+	tristate "Marvell 88PM860x touchscreen"
+	depends on MFD_88PM860X
+	help
+	  Say Y here if you have a 88PM860x PMIC and want to enable
+	  support for the built-in touchscreen.
+
+	  If unsure, say N.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called 88pm860x-ts.
+
 config TOUCHSCREEN_ADS7846
 	tristate "ADS7846/TSC2046 and ADS7843 based touchscreens"
 	depends on SPI_MASTER

drivers/input/touchscreen/Makefile

@@ -6,6 +6,7 @@
 
 wm97xx-ts-y := wm97xx-core.o
 
+obj-$(CONFIG_TOUCHSCREEN_88PM860X)	+= 88pm860x-ts.o
 obj-$(CONFIG_TOUCHSCREEN_AD7877)	+= ad7877.o
 obj-$(CONFIG_TOUCHSCREEN_AD7879)	+= ad7879.o
 obj-$(CONFIG_TOUCHSCREEN_ADS7846)	+= ads7846.o

drivers/leds/Kconfig

@@ -17,6 +17,13 @@ config LEDS_CLASS
 
 comment "LED drivers"
 
+config LEDS_88PM860X
+	tristate "LED Support for Marvell 88PM860x PMIC"
+	depends on LEDS_CLASS && MFD_88PM860X
+	help
+	  This option enables support for on-chip LED drivers found on Marvell
+	  Semiconductor 88PM8606 PMIC.
+
 config LEDS_ATMEL_PWM
 	tristate "LED Support using Atmel PWM outputs"
 	depends on LEDS_CLASS && ATMEL_PWM

drivers/leds/Makefile

@@ -5,6 +5,7 @@ obj-$(CONFIG_LEDS_CLASS)		+= led-class.o
 obj-$(CONFIG_LEDS_TRIGGERS)		+= led-triggers.o
 
 # LED Platform Drivers
+obj-$(CONFIG_LEDS_88PM860X)		+= leds-88pm860x.o
 obj-$(CONFIG_LEDS_ATMEL_PWM)		+= leds-atmel-pwm.o
 obj-$(CONFIG_LEDS_BD2802)		+= leds-bd2802.o
 obj-$(CONFIG_LEDS_LOCOMO)		+= leds-locomo.o

drivers/leds/leds-88pm860x.c

+/*
+ * LED driver for Marvell 88PM860x
+ *
+ * Copyright (C) 2009 Marvell International Ltd.
+ *	Haojian Zhuang <haojian.zhuang@marvell.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <linux/leds.h>
+#include <linux/workqueue.h>
+#include <linux/mfd/88pm860x.h>
+
+#define LED_PWM_SHIFT		(3)
+#define LED_PWM_MASK		(0x1F)
+#define LED_CURRENT_MASK	(0x07 << 5)
+
+#define LED_BLINK_ON_MASK	(0x07)
+#define LED_BLINK_PERIOD_MASK	(0x0F << 3)
+#define LED_BLINK_MASK		(0x7F)
+
+#define LED_BLINK_ON(x)		((x & 0x7) * 66 + 66)
+#define LED_BLINK_PERIOD(x)	((x & 0xF) * 530 + 930)
+#define LED_BLINK_ON_MIN	LED_BLINK_ON(0)
+#define LED_BLINK_ON_MAX	LED_BLINK_ON(0x7)
+#define LED_BLINK_PERIOD_MIN	LED_BLINK_PERIOD(0)
+#define LED_BLINK_PERIOD_MAX	LED_BLINK_PERIOD(0xE)
+#define LED_TO_ON(x)		((x - 66) / 66)
+#define LED_TO_PERIOD(x)	((x - 930) / 530)
+
+#define LED1_BLINK_EN		(1 << 1)
+#define LED2_BLINK_EN		(1 << 2)
+
+enum {
+	SET_BRIGHTNESS,
+	SET_BLINK,
+};
+
+struct pm860x_led {
+	struct led_classdev cdev;
+	struct i2c_client *i2c;
+	struct work_struct work;
+	struct pm860x_chip *chip;
+	struct mutex lock;
+	char name[MFD_NAME_SIZE];
+
+	int port;
+	int iset;
+	int command;
+	int offset;
+	unsigned char brightness;
+	unsigned char current_brightness;
+
+	int blink_data;
+	int blink_time;
+	int blink_on;
+	int blink_off;
+};
+
+/* return offset of color register */
+static inline int __led_off(int port)
+{
+	int ret = -EINVAL;
+
+	switch (port) {
+	case PM8606_LED1_RED:
+	case PM8606_LED1_GREEN:
+	case PM8606_LED1_BLUE:
+		ret = port - PM8606_LED1_RED + PM8606_RGB1B;
+		break;
+	case PM8606_LED2_RED:
+	case PM8606_LED2_GREEN:
+	case PM8606_LED2_BLUE:
+		ret = port - PM8606_LED2_RED + PM8606_RGB2B;
+		break;
+	}
+	return ret;
+}
+
+/* return offset of blink register */
+static inline int __blink_off(int port)
+{
+	int ret = -EINVAL;
+
+	switch (port) {
+	case PM8606_LED1_RED:
+	case PM8606_LED1_GREEN:
+	case PM8606_LED1_BLUE:
+		ret = PM8606_RGB1A;
+	case PM8606_LED2_RED:
+	case PM8606_LED2_GREEN:
+	case PM8606_LED2_BLUE:
+		ret = PM8606_RGB2A;
+	}
+	return ret;
+}
+
+static inline int __blink_ctl_mask(int port)
+{
+	int ret = -EINVAL;
+
+	switch (port) {
+	case PM8606_LED1_RED:
+	case PM8606_LED1_GREEN:
+	case PM8606_LED1_BLUE:
+		ret = LED1_BLINK_EN;
+		break;
+	case PM8606_LED2_RED:
+	case PM8606_LED2_GREEN:
+	case PM8606_LED2_BLUE:
+		ret = LED2_BLINK_EN;
+		break;
+	}
+	return ret;
+}
+
+static int __led_set(struct pm860x_led *led, int command)
+{
+	struct pm860x_chip *chip = led->chip;
+	int mask, ret;
+
+	mutex_lock(&led->lock);
+	switch (command) {
+	case SET_BRIGHTNESS:
+		if ((led->current_brightness == 0) && led->brightness) {
+			if (led->iset) {
+				ret = pm860x_set_bits(led->i2c, led->offset,
+						LED_CURRENT_MASK, led->iset);
+				if (ret < 0)
+					goto out;
+			}
+		} else if (led->brightness == 0) {
+			ret = pm860x_set_bits(led->i2c, led->offset,
+						LED_CURRENT_MASK, 0);
+			if (ret < 0)
+				goto out;
+		}
+		ret = pm860x_set_bits(led->i2c, led->offset, LED_PWM_MASK,
+					led->brightness);
+		if (ret < 0)
+			goto out;
+		led->current_brightness = led->brightness;
+		dev_dbg(chip->dev, "Update LED. (reg:%d, brightness:%d)\n",
+			led->offset, led->brightness);
+		break;
+	case SET_BLINK:
+		ret = pm860x_set_bits(led->i2c, led->offset,
+				LED_BLINK_MASK, led->blink_data);
+		if (ret < 0)
+			goto out;
+
+		mask = __blink_ctl_mask(led->port);
+		ret = pm860x_set_bits(led->i2c, PM8606_WLED3B, mask, mask);
+		if (ret < 0)
+			goto out;
+		dev_dbg(chip->dev, "LED blink delay on:%dms, delay off:%dms\n",
+			led->blink_on, led->blink_off);
+		break;
+	}
+out:
+	mutex_unlock(&led->lock);
+	return 0;
+}
+
+static void pm860x_led_work(struct work_struct *work)
+{
+	struct pm860x_led *led;
+
+	led = container_of(work, struct pm860x_led, work);
+	__led_set(led, led->command);
+}
+
+static void pm860x_led_set(struct led_classdev *cdev,
+			   enum led_brightness value)
+{
+	struct pm860x_led *data = container_of(cdev, struct pm860x_led, cdev);
+
+	data->offset = __led_off(data->port);
+	data->brightness = value >> 3;
+	data->command = SET_BRIGHTNESS;
+	schedule_work(&data->work);
+}
+
+static int pm860x_led_blink(struct led_classdev *cdev,
+			    unsigned long *delay_on,
+			    unsigned long *delay_off)
+{
+	struct pm860x_led *data = container_of(cdev, struct pm860x_led, cdev);
+	int period, on;
+
+	on = *delay_on;
+	if ((on < LED_BLINK_ON_MIN) || (on > LED_BLINK_ON_MAX))
+		return -EINVAL;
+
+	on = LED_TO_ON(on);
+	on = LED_BLINK_ON(on);
+
+	period = on + *delay_off;
+	if ((period < LED_BLINK_PERIOD_MIN) || (period > LED_BLINK_PERIOD_MAX))
+		return -EINVAL;
+	period = LED_TO_PERIOD(period);
+	period = LED_BLINK_PERIOD(period);
+
+	data->offset = __blink_off(data->port);
+	data->blink_on = on;
+	data->blink_off = period - data->blink_on;
+	data->blink_data = (period << 3) | data->blink_on;
+	data->command = SET_BLINK;
+	schedule_work(&data->work);
+
+	return 0;
+}
+
+static int __check_device(struct pm860x_led_pdata *pdata, char *name)
+{
+	struct pm860x_led_pdata *p = pdata;
+	int ret = -EINVAL;
+
+	while (p && p->id) {
+		if ((p->id != PM8606_ID_LED) || (p->flags < 0))
+			break;
+
+		if (!strncmp(name, pm860x_led_name[p->flags],
+			MFD_NAME_SIZE)) {
+			ret = (int)p->flags;
+			break;
+		}
+		p++;
+	}
+	return ret;
+}
+
+static int pm860x_led_probe(struct platform_device *pdev)
+{
+	struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
+	struct pm860x_platform_data *pm860x_pdata;
+	struct pm860x_led_pdata *pdata;
+	struct pm860x_led *data;
+	struct resource *res;
+	int ret;
+
+	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+	if (res == NULL) {
+		dev_err(&pdev->dev, "No I/O resource!\n");
+		return -EINVAL;
+	}
+
+	if (pdev->dev.parent->platform_data) {
+		pm860x_pdata = pdev->dev.parent->platform_data;
+		pdata = pm860x_pdata->led;
+	} else
+		pdata = NULL;
+
+	data = kzalloc(sizeof(struct pm860x_led), GFP_KERNEL);
+	if (data == NULL)
+		return -ENOMEM;
+	strncpy(data->name, res->name, MFD_NAME_SIZE);
+	dev_set_drvdata(&pdev->dev, data);
+	data->chip = chip;
+	data->i2c = (chip->id == CHIP_PM8606) ? chip->client : chip->companion;
+	data->iset = pdata->iset;
+	data->port = __check_device(pdata, data->name);
+	if (data->port < 0)
+		return -EINVAL;
+
+	data->current_brightness = 0;
+	data->cdev.name = data->name;
+	data->cdev.brightness_set = pm860x_led_set;
+	data->cdev.blink_set = pm860x_led_blink;
+	mutex_init(&data->lock);
+	INIT_WORK(&data->work, pm860x_led_work);
+
+	ret = led_classdev_register(chip->dev, &data->cdev);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "Failed to register LED: %d\n", ret);
+		goto out;
+	}
+	return 0;
+out:
+	kfree(data);
+	return ret;
+}
+
+static int pm860x_led_remove(struct platform_device *pdev)
+{
+	struct pm860x_led *data = platform_get_drvdata(pdev);
+
+	led_classdev_unregister(&data->cdev);
+	kfree(data);
+
+	return 0;
+}
+
+static struct platform_driver pm860x_led_driver = {
+	.driver	= {
+		.name	= "88pm860x-led",
+		.owner	= THIS_MODULE,
+	},
+	.probe	= pm860x_led_probe,
+	.remove	= pm860x_led_remove,
+};
+
+static int __devinit pm860x_led_init(void)
+{
+	return platform_driver_register(&pm860x_led_driver);
+}
+module_init(pm860x_led_init);
+
+static void __devexit pm860x_led_exit(void)
+{
+	platform_driver_unregister(&pm860x_led_driver);
+}
+module_exit(pm860x_led_exit);
+
+MODULE_DESCRIPTION("LED driver for Marvell PM860x");
+MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:88pm860x-led");

drivers/mfd/Kconfig

@@ -9,6 +9,16 @@ config MFD_CORE
 	tristate
 	default n
 
+config MFD_88PM860X
+	bool "Support Marvell 88PM8606/88PM8607"
+	depends on I2C=y
+	select MFD_CORE
+	help
+	  This supports for Marvell 88PM8606/88PM8607 Power Management IC.
+	  This includes the I2C driver and the core APIs _only_, you have to
+	  select individual components like voltage regulators, RTC and
+	  battery-charger under the corresponding menus.
+
 config MFD_SM501
 	tristate "Support for Silicon Motion SM501"
 	 ---help---
@@ -37,7 +47,7 @@ config MFD_ASIC3
 
 config MFD_SH_MOBILE_SDHI
 	bool "Support for SuperH Mobile SDHI"
-	depends on SUPERH
+	depends on SUPERH || ARCH_SHMOBILE
 	select MFD_CORE
 	 ---help---
 	  This driver supports the SDHI hardware block found in many
@@ -68,6 +78,15 @@ config HTC_PASIC3
 	  HTC Magician devices, respectively. Actual functionality is
 	  handled by the leds-pasic3 and ds1wm drivers.
 
+config HTC_I2CPLD
+	bool "HTC I2C PLD chip support"
+	depends on I2C=y && GPIOLIB
+	help
+	  If you say yes here you get support for the supposed CPLD
+	  found on omap850 HTC devices like the HTC Wizard and HTC Herald.
+	  This device provides input and output GPIOs through an I2C
+	  interface to one or more sub-chips.
+
 config UCB1400_CORE
 	tristate "Philips UCB1400 Core driver"
 	depends on AC97_BUS
@@ -184,6 +203,16 @@ config PMIC_ADP5520
 	  individual components like LCD backlight, LEDs, GPIOs and Kepad
 	  under the corresponding menus.
 
+config MFD_MAX8925
+	bool "Maxim Semiconductor MAX8925 PMIC Support"
+	depends on I2C=y
+	select MFD_CORE
+	help
+	  Say yes here to support for Maxim Semiconductor MAX8925. This is
+	  a Power Management IC. This driver provies common support for
+	  accessing the device, additional drivers must be enabled in order
+	  to use the functionality of the device.
+
 config MFD_WM8400
 	tristate "Support Wolfson Microelectronics WM8400"
 	select MFD_CORE
@@ -205,7 +234,7 @@ config MFD_WM831X
 	  functionality of the device.
 
 config MFD_WM8350
-	tristate
+	bool
 
 config MFD_WM8350_CONFIG_MODE_0
 	bool
@@ -256,9 +285,9 @@ config MFD_WM8352_CONFIG_MODE_3
 	depends on MFD_WM8350
 
 config MFD_WM8350_I2C
-	tristate "Support Wolfson Microelectronics WM8350 with I2C"
+	bool "Support Wolfson Microelectronics WM8350 with I2C"
 	select MFD_WM8350
-	depends on I2C
+	depends on I2C=y
 	help
 	  The WM8350 is an integrated audio and power management
 	  subsystem with watchdog and RTC functionality for embedded
@@ -266,6 +295,18 @@ config MFD_WM8350_I2C
 	  I2C as the control interface.  Additional options must be
 	  selected to enable support for the functionality of the chip.
 
+config MFD_WM8994
+	tristate "Support Wolfson Microelectronics WM8994"
+	select MFD_CORE
+	depends on I2C
+	help
+	  The WM8994 is a highly integrated hi-fi CODEC designed for
+	  smartphone applicatiosn.  As well as audio functionality it
+	  has on board GPIO and regulator functionality which is
+	  supported via the relevant subsystems.  This driver provides
+	  core support for the WM8994, in order to use the actual
+	  functionaltiy of the device other drivers must be enabled.
+
 config MFD_PCF50633
 	tristate "Support for NXP PCF50633"
 	depends on I2C
@@ -300,8 +341,8 @@ config PCF50633_GPIO
 	 the PCF50633 chip.
 
 config AB3100_CORE
-	tristate "ST-Ericsson AB3100 Mixed Signal Circuit core functions"
-	depends on I2C
+	bool "ST-Ericsson AB3100 Mixed Signal Circuit core functions"
+	depends on I2C=y
 	default y if ARCH_U300
 	help
 	  Select this to enable the AB3100 Mixed Signal IC core
@@ -329,16 +370,6 @@ config EZX_PCAP
 	  This enables the PCAP ASIC present on EZX Phones. This is
 	  needed for MMC, TouchScreen, Sound, USB, etc..
 
-config MFD_88PM8607
-	bool "Support Marvell 88PM8607"
-	depends on I2C=y
-	select MFD_CORE
-	help
-	  This supports for Marvell 88PM8607 Power Management IC. This includes
-	  the I2C driver and the core APIs _only_, you have to select
-	  individual components like voltage regulators, RTC and
-	  battery-charger under the corresponding menus.
-
 config AB4500_CORE
 	tristate "ST-Ericsson's AB4500 Mixed Signal Power management chip"
 	depends on SPI
@@ -358,6 +389,15 @@ config MFD_TIMBERDALE
 
 	The timberdale FPGA can be found on the Intel Atom development board
 	for in-vehicle infontainment, called Russellville.
+
+config LPC_SCH
+	tristate "Intel SCH LPC"
+	depends on PCI
+	select MFD_CORE
+	help
+	  LPC bridge function of the Intel SCH provides support for
+	  System Management Bus and General Purpose I/O.
+
 endmenu
 
 menu "Multimedia Capabilities Port drivers"

drivers/mfd/Makefile

@@ -2,12 +2,15 @@
 # Makefile for multifunction miscellaneous devices
 #
 
+88pm860x-objs			:= 88pm860x-core.o 88pm860x-i2c.o
+obj-$(CONFIG_MFD_88PM860X)	+= 88pm860x.o
 obj-$(CONFIG_MFD_SM501)		+= sm501.o
 obj-$(CONFIG_MFD_ASIC3)		+= asic3.o tmio_core.o
 obj-$(CONFIG_MFD_SH_MOBILE_SDHI)		+= sh_mobile_sdhi.o
 
 obj-$(CONFIG_HTC_EGPIO)		+= htc-egpio.o
 obj-$(CONFIG_HTC_PASIC3)	+= htc-pasic3.o
+obj-$(CONFIG_HTC_I2CPLD)	+= htc-i2cpld.o
 
 obj-$(CONFIG_MFD_DM355EVM_MSP)	+= dm355evm_msp.o
 
@@ -22,6 +25,7 @@ wm8350-objs			:= wm8350-core.o wm8350-regmap.o wm8350-gpio.o
 wm8350-objs			+= wm8350-irq.o
 obj-$(CONFIG_MFD_WM8350)	+= wm8350.o
 obj-$(CONFIG_MFD_WM8350_I2C)	+= wm8350-i2c.o
+obj-$(CONFIG_MFD_WM8994)	+= wm8994-core.o
 
 obj-$(CONFIG_TPS65010)		+= tps65010.o
 obj-$(CONFIG_MENELAUS)		+= menelaus.o
@@ -47,6 +51,8 @@ endif
 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-$(CONFIG_MFD_PCF50633)	+= pcf50633-core.o
 obj-$(CONFIG_PCF50633_ADC)	+= pcf50633-adc.o
@@ -55,5 +61,5 @@ obj-$(CONFIG_AB3100_CORE)	+= ab3100-core.o
 obj-$(CONFIG_AB3100_OTP)	+= ab3100-otp.o
 obj-$(CONFIG_AB4500_CORE)	+= ab4500-core.o
 obj-$(CONFIG_MFD_TIMBERDALE)    += timberdale.o
-obj-$(CONFIG_MFD_88PM8607)	+= 88pm8607.o
 obj-$(CONFIG_PMIC_ADP5520)	+= adp5520.o
+obj-$(CONFIG_LPC_SCH)		+= lpc_sch.o
\ No newline at end of file

drivers/mfd/ab3100-core.c

 /*
- * Copyright (C) 2007-2009 ST-Ericsson
+ * Copyright (C) 2007-2010 ST-Ericsson
  * License terms: GNU General Public License (GPL) version 2
  * Low-level core for exclusive access to the AB3100 IC on the I2C bus
  * and some basic chip-configuration.
@@ -14,6 +14,7 @@
 #include <linux/platform_device.h>
 #include <linux/device.h>
 #include <linux/interrupt.h>
+#include <linux/random.h>
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
 #include <linux/uaccess.h>
@@ -365,18 +366,23 @@ int ab3100_event_registers_startup_state_get(struct ab3100 *ab3100,
 }
 EXPORT_SYMBOL(ab3100_event_registers_startup_state_get);
 
-/* Interrupt handling worker */
-static void ab3100_work(struct work_struct *work)
+/*
+ * This is a threaded interrupt handler so we can make some
+ * I2C calls etc.
+ */
+static irqreturn_t ab3100_irq_handler(int irq, void *data)
 {
-	struct ab3100 *ab3100 = container_of(work, struct ab3100, work);
+	struct ab3100 *ab3100 = data;
 	u8 event_regs[3];
 	u32 fatevent;
 	int err;
 
+	add_interrupt_randomness(irq);
+
 	err = ab3100_get_register_page_interruptible(ab3100, AB3100_EVENTA1,
 				       event_regs, 3);
 	if (err)
-		goto err_event_wq;
+		goto err_event;
 
 	fatevent = (event_regs[0] << 16) |
 		(event_regs[1] << 8) |
@@ -398,29 +404,11 @@ static void ab3100_work(struct work_struct *work)
 	dev_dbg(ab3100->dev,
 		"IRQ Event: 0x%08x\n", fatevent);
 
-	/* By now the IRQ should be acked and deasserted so enable it again */
-	enable_irq(ab3100->i2c_client->irq);
-	return;
+	return IRQ_HANDLED;
 
- err_event_wq:
+ err_event:
 	dev_dbg(ab3100->dev,
-		"error in event workqueue\n");
-	/* Enable the IRQ anyway, what choice do we have? */
-	enable_irq(ab3100->i2c_client->irq);
-	return;
-}
-
-static irqreturn_t ab3100_irq_handler(int irq, void *data)
-{
-	struct ab3100 *ab3100 = data;
-	/*
-	 * Disable the IRQ and dispatch a worker to handle the
-	 * event. Since the chip resides on I2C this is slow
-	 * stuff and we will re-enable the interrupts once th
-	 * worker has finished.
-	 */
-	disable_irq_nosync(irq);
-	schedule_work(&ab3100->work);
+		"error reading event status\n");
 	return IRQ_HANDLED;
 }
 
@@ -735,10 +723,7 @@ static struct platform_device ab3100_##devname##_device = {	\
 	.id		= -1,					\
 }
 
-/*
- * This lists all the subdevices and corresponding register
- * ranges.
- */
+/* This lists all the subdevices */
 AB3100_DEVICE(dac, "ab3100-dac");
 AB3100_DEVICE(leds, "ab3100-leds");
 AB3100_DEVICE(power, "ab3100-power");
@@ -904,12 +889,11 @@ static int __init ab3100_probe(struct i2c_client *client,
 	if (err)
 		goto exit_no_setup;
 
-	INIT_WORK(&ab3100->work, ab3100_work);
-
+	err = request_threaded_irq(client->irq, NULL, ab3100_irq_handler,
+				IRQF_ONESHOT, "ab3100-core", ab3100);
 	/* This real unpredictable IRQ is of course sampled for entropy */
-	err = request_irq(client->irq, ab3100_irq_handler,
-			  IRQF_DISABLED | IRQF_SAMPLE_RANDOM,
-			  "AB3100 IRQ", ab3100);
+	rand_initialize_irq(client->irq);
+
 	if (err)
 		goto exit_no_irq;
 

drivers/mfd/ab3100-otp.c

@@ -13,6 +13,7 @@
 #include <linux/platform_device.h>
 #include <linux/mfd/ab3100.h>
 #include <linux/debugfs.h>
+#include <linux/seq_file.h>
 
 /* The OTP registers */
 #define AB3100_OTP0		0xb0
@@ -95,11 +96,10 @@ static int __init ab3100_otp_read(struct ab3100_otp *otp)
  * This is a simple debugfs human-readable file that dumps out
  * the contents of the OTP.
  */
-#ifdef CONFIG_DEBUGFS
-static int show_otp(struct seq_file *s, void *v)
+#ifdef CONFIG_DEBUG_FS
+static int ab3100_show_otp(struct seq_file *s, void *v)
 {
 	struct ab3100_otp *otp = s->private;
-	int err;
 
 	seq_printf(s, "OTP is %s\n", otp->locked ? "LOCKED" : "UNLOCKED");
 	seq_printf(s, "OTP clock switch startup is %uHz\n", otp->freq);
@@ -113,7 +113,7 @@ static int show_otp(struct seq_file *s, void *v)
 
 static int ab3100_otp_open(struct inode *inode, struct file *file)
 {
-	return single_open(file, ab3100_otp_show, inode->i_private);
+	return single_open(file, ab3100_show_otp, inode->i_private);
 }
 
 static const struct file_operations ab3100_otp_operations = {
@@ -131,13 +131,14 @@ static int __init ab3100_otp_init_debugfs(struct device *dev,
 					   &ab3100_otp_operations);
 	if (!otp->debugfs) {
 		dev_err(dev, "AB3100 debugfs OTP file registration failed!\n");
-		return err;
+		return -ENOENT;
 	}
+	return 0;
 }
 
 static void __exit ab3100_otp_exit_debugfs(struct ab3100_otp *otp)
 {
-	debugfs_remove_file(otp->debugfs);
+	debugfs_remove(otp->debugfs);
 }
 #else
 /* Compile this out if debugfs not selected */

drivers/mfd/lpc_sch.c

+/*
+ *  lpc_sch.c - LPC interface for Intel Poulsbo SCH
+ *
+ *  LPC bridge function of the Intel SCH contains many other
+ *  functional units, such as Interrupt controllers, Timers,
+ *  Power Management, System Management, GPIO, RTC, and LPC
+ *  Configuration Registers.
+ *
+ *  Copyright (c) 2010 CompuLab Ltd
+ *  Author: Denis Turischev <denis@compulab.co.il>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License 2 as published
+ *  by the Free Software Foundation.
+ *
+ *  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; see the file COPYING.  If not, write to
+ *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/acpi.h>
+#include <linux/pci.h>
+#include <linux/mfd/core.h>
+
+#define SMBASE		0x40
+#define SMBUS_IO_SIZE	64
+
+#define GPIOBASE	0x44
+#define GPIO_IO_SIZE	64
+
+static struct resource smbus_sch_resource = {
+		.flags = IORESOURCE_IO,
+};
+
+
+static struct resource gpio_sch_resource = {
+		.flags = IORESOURCE_IO,
+};
+
+static struct mfd_cell lpc_sch_cells[] = {
+	{
+		.name = "isch_smbus",
+		.num_resources = 1,
+		.resources = &smbus_sch_resource,
+	},
+	{
+		.name = "sch_gpio",
+		.num_resources = 1,
+		.resources = &gpio_sch_resource,
+	},
+};
+
+static struct pci_device_id lpc_sch_ids[] = {
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SCH_LPC) },
+	{ 0, }
+};
+MODULE_DEVICE_TABLE(pci, lpc_sch_ids);
+
+static int __devinit lpc_sch_probe(struct pci_dev *dev,
+				const struct pci_device_id *id)
+{
+	unsigned int base_addr_cfg;
+	unsigned short base_addr;
+
+	pci_read_config_dword(dev, SMBASE, &base_addr_cfg);
+	if (!(base_addr_cfg & (1 << 31))) {
+		dev_err(&dev->dev, "Decode of the SMBus I/O range disabled\n");
+		return -ENODEV;
+	}
+	base_addr = (unsigned short)base_addr_cfg;
+	if (base_addr == 0) {
+		dev_err(&dev->dev, "I/O space for SMBus uninitialized\n");
+		return -ENODEV;
+	}
+
+	smbus_sch_resource.start = base_addr;
+	smbus_sch_resource.end = base_addr + SMBUS_IO_SIZE - 1;
+
+	pci_read_config_dword(dev, GPIOBASE, &base_addr_cfg);
+	if (!(base_addr_cfg & (1 << 31))) {
+		dev_err(&dev->dev, "Decode of the GPIO I/O range disabled\n");
+		return -ENODEV;
+	}
+	base_addr = (unsigned short)base_addr_cfg;
+	if (base_addr == 0) {
+		dev_err(&dev->dev, "I/O space for GPIO uninitialized\n");
+		return -ENODEV;
+	}
+
+	gpio_sch_resource.start = base_addr;
+	gpio_sch_resource.end = base_addr + GPIO_IO_SIZE - 1;
+
+	return mfd_add_devices(&dev->dev, -1,
+			lpc_sch_cells, ARRAY_SIZE(lpc_sch_cells), NULL, 0);
+}
+
+static void __devexit lpc_sch_remove(struct pci_dev *dev)
+{
+	mfd_remove_devices(&dev->dev);
+}
+
+static struct pci_driver lpc_sch_driver = {
+	.name		= "lpc_sch",
+	.id_table	= lpc_sch_ids,
+	.probe		= lpc_sch_probe,
+	.remove		= __devexit_p(lpc_sch_remove),
+};
+
+static int __init lpc_sch_init(void)
+{
+	return pci_register_driver(&lpc_sch_driver);
+}
+
+static void __exit lpc_sch_exit(void)
+{
+	pci_unregister_driver(&lpc_sch_driver);
+}
+
+module_init(lpc_sch_init);
+module_exit(lpc_sch_exit);
+
+MODULE_AUTHOR("Denis Turischev <denis@compulab.co.il>");
+MODULE_DESCRIPTION("LPC interface for Intel Poulsbo SCH");
+MODULE_LICENSE("GPL");

drivers/mfd/max8925-i2c.c

+/*
+ * I2C driver for Maxim MAX8925
+ *
+ * Copyright (C) 2009 Marvell International Ltd.
+ *	Haojian Zhuang <haojian.zhuang@marvell.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <linux/mfd/max8925.h>
+
+#define RTC_I2C_ADDR		0x68
+#define ADC_I2C_ADDR		0x47
+
+static inline int max8925_read_device(struct i2c_client *i2c,
+				      int reg, int bytes, void *dest)
+{
+	int ret;
+
+	if (bytes > 1)
+		ret = i2c_smbus_read_i2c_block_data(i2c, reg, bytes, dest);
+	else {
+		ret = i2c_smbus_read_byte_data(i2c, reg);
+		if (ret < 0)
+			return ret;
+		*(unsigned char *)dest = (unsigned char)ret;
+	}
+	return ret;
+}
+
+static inline int max8925_write_device(struct i2c_client *i2c,
+				       int reg, int bytes, void *src)
+{
+	unsigned char buf[bytes + 1];
+	int ret;
+
+	buf[0] = (unsigned char)reg;
+	memcpy(&buf[1], src, bytes);
+
+	ret = i2c_master_send(i2c, buf, bytes + 1);
+	if (ret < 0)
+		return ret;
+	return 0;
+}
+
+int max8925_reg_read(struct i2c_client *i2c, int reg)
+{
+	struct max8925_chip *chip = i2c_get_clientdata(i2c);
+	unsigned char data = 0;
+	int ret;
+
+	mutex_lock(&chip->io_lock);
+	ret = max8925_read_device(i2c, reg, 1, &data);
+	mutex_unlock(&chip->io_lock);
+
+	if (ret < 0)
+		return ret;
+	else
+		return (int)data;
+}
+EXPORT_SYMBOL(max8925_reg_read);
+
+int max8925_reg_write(struct i2c_client *i2c, int reg,
+		unsigned char data)
+{
+	struct max8925_chip *chip = i2c_get_clientdata(i2c);
+	int ret;
+
+	mutex_lock(&chip->io_lock);
+	ret = max8925_write_device(i2c, reg, 1, &data);
+	mutex_unlock(&chip->io_lock);
+
+	return ret;
+}
+EXPORT_SYMBOL(max8925_reg_write);
+
+int max8925_bulk_read(struct i2c_client *i2c, int reg,
+		int count, unsigned char *buf)
+{
+	struct max8925_chip *chip = i2c_get_clientdata(i2c);
+	int ret;
+
+	mutex_lock(&chip->io_lock);
+	ret = max8925_read_device(i2c, reg, count, buf);
+	mutex_unlock(&chip->io_lock);
+
+	return ret;
+}
+EXPORT_SYMBOL(max8925_bulk_read);
+
+int max8925_bulk_write(struct i2c_client *i2c, int reg,
+		int count, unsigned char *buf)
+{
+	struct max8925_chip *chip = i2c_get_clientdata(i2c);
+	int ret;
+
+	mutex_lock(&chip->io_lock);
+	ret = max8925_write_device(i2c, reg, count, buf);
+	mutex_unlock(&chip->io_lock);
+
+	return ret;
+}
+EXPORT_SYMBOL(max8925_bulk_write);
+
+int max8925_set_bits(struct i2c_client *i2c, int reg,
+		unsigned char mask, unsigned char data)
+{
+	struct max8925_chip *chip = i2c_get_clientdata(i2c);
+	unsigned char value;
+	int ret;
+
+	mutex_lock(&chip->io_lock);
+	ret = max8925_read_device(i2c, reg, 1, &value);
+	if (ret < 0)
+		goto out;
+	value &= ~mask;
+	value |= data;
+	ret = max8925_write_device(i2c, reg, 1, &value);
+out:
+	mutex_unlock(&chip->io_lock);
+	return ret;
+}
+EXPORT_SYMBOL(max8925_set_bits);
+
+
+static const struct i2c_device_id max8925_id_table[] = {
+	{ "max8925", 0 },
+	{ },
+};
+MODULE_DEVICE_TABLE(i2c, max8925_id_table);
+
+static int __devinit max8925_probe(struct i2c_client *client,
+				   const struct i2c_device_id *id)
+{
+	struct max8925_platform_data *pdata = client->dev.platform_data;
+	static struct max8925_chip *chip;
+
+	if (!pdata) {
+		pr_info("%s: platform data is missing\n", __func__);
+		return -EINVAL;
+	}
+
+	chip = kzalloc(sizeof(struct max8925_chip), GFP_KERNEL);
+	if (chip == NULL)
+		return -ENOMEM;
+	chip->i2c = client;
+	chip->dev = &client->dev;
+	i2c_set_clientdata(client, chip);
+	dev_set_drvdata(chip->dev, chip);
+	mutex_init(&chip->io_lock);
+
+	chip->rtc = i2c_new_dummy(chip->i2c->adapter, RTC_I2C_ADDR);
+	i2c_set_clientdata(chip->rtc, chip);
+
+	chip->adc = i2c_new_dummy(chip->i2c->adapter, ADC_I2C_ADDR);
+	i2c_set_clientdata(chip->adc, chip);
+
+	max8925_device_init(chip, pdata);
+
+	return 0;
+}
+
+static int __devexit max8925_remove(struct i2c_client *client)
+{
+	struct max8925_chip *chip = i2c_get_clientdata(client);
+
+	max8925_device_exit(chip);
+	i2c_unregister_device(chip->adc);
+	i2c_unregister_device(chip->rtc);
+	i2c_set_clientdata(chip->adc, NULL);
+	i2c_set_clientdata(chip->rtc, NULL);
+	i2c_set_clientdata(chip->i2c, NULL);
+	kfree(chip);
+	return 0;
+}
+
+static struct i2c_driver max8925_driver = {
+	.driver	= {
+		.name	= "max8925",
+		.owner	= THIS_MODULE,
+	},
+	.probe		= max8925_probe,
+	.remove		= __devexit_p(max8925_remove),
+	.id_table	= max8925_id_table,
+};
+
+static int __init max8925_i2c_init(void)
+{
+	int ret;
+
+	ret = i2c_add_driver(&max8925_driver);
+	if (ret != 0)
+		pr_err("Failed to register MAX8925 I2C driver: %d\n", ret);
+	return ret;
+}
+subsys_initcall(max8925_i2c_init);
+
+static void __exit max8925_i2c_exit(void)
+{
+	i2c_del_driver(&max8925_driver);
+}
+module_exit(max8925_i2c_exit);
+
+MODULE_DESCRIPTION("I2C Driver for Maxim 8925");
+MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
+MODULE_LICENSE("GPL");

drivers/mfd/mfd-core.c

@@ -13,6 +13,7 @@
 
 #include <linux/kernel.h>
 #include <linux/platform_device.h>
+#include <linux/acpi.h>
 #include <linux/mfd/core.h>
 
 static int mfd_add_device(struct device *parent, int id,
@@ -62,6 +63,10 @@ static int mfd_add_device(struct device *parent, int id,
 			res[r].start = cell->resources[r].start;
 			res[r].end   = cell->resources[r].end;
 		}
+
+		ret = acpi_check_resource_conflict(res);
+		if (ret)
+			goto fail_res;
 	}
 
 	platform_device_add_resources(pdev, res, cell->num_resources);

drivers/mfd/sh_mobile_sdhi.c

@@ -21,7 +21,7 @@
 #include <linux/kernel.h>
 #include <linux/clk.h>
 #include <linux/platform_device.h>
-
+#include <linux/mmc/host.h>
 #include <linux/mfd/core.h>
 #include <linux/mfd/tmio.h>
 #include <linux/mfd/sh_mobile_sdhi.h>
@@ -95,9 +95,9 @@ static int __init sh_mobile_sdhi_probe(struct platform_device *pdev)
 
 	clk_enable(priv->clk);
 
-	/* FIXME: silly const unsigned int hclk */
-	*(unsigned int *)&priv->mmc_data.hclk = clk_get_rate(priv->clk);
+	priv->mmc_data.hclk = clk_get_rate(priv->clk);
 	priv->mmc_data.set_pwr = sh_mobile_sdhi_set_pwr;
+	priv->mmc_data.capabilities = MMC_CAP_MMC_HIGHSPEED;
 
 	memcpy(&priv->cell_mmc, &sh_mobile_sdhi_cell, sizeof(priv->cell_mmc));
 	priv->cell_mmc.driver_data = &priv->mmc_data;

drivers/mfd/sm501.c

@@ -1430,7 +1430,7 @@ static int __devinit sm501_plat_probe(struct platform_device *dev)
 	}
 
 	sm->regs_claim = request_mem_region(sm->io_res->start,
-					    0x100, "sm501");
+					    resource_size(sm->io_res), "sm501");
 
 	if (sm->regs_claim == NULL) {
 		dev_err(&dev->dev, "cannot claim registers\n");
@@ -1440,8 +1440,7 @@ static int __devinit sm501_plat_probe(struct platform_device *dev)
 
 	platform_set_drvdata(dev, sm);
 
-	sm->regs = ioremap(sm->io_res->start,
-			   (sm->io_res->end - sm->io_res->start) - 1);
+	sm->regs = ioremap(sm->io_res->start, resource_size(sm->io_res));
 
 	if (sm->regs == NULL) {
 		dev_err(&dev->dev, "cannot remap registers\n");
@@ -1645,7 +1644,7 @@ static int __devinit sm501_pci_probe(struct pci_dev *dev,
 	sm->mem_res = &dev->resource[0];
 
 	sm->regs_claim = request_mem_region(sm->io_res->start,
-					    0x100, "sm501");
+					    resource_size(sm->io_res), "sm501");
 	if (sm->regs_claim == NULL) {
 		dev_err(&dev->dev, "cannot claim registers\n");
 		err= -EBUSY;

drivers/mfd/t7l66xb.c

@@ -360,7 +360,7 @@ static int t7l66xb_probe(struct platform_device *dev)
 	if (ret)
 		goto err_request_scr;
 
-	t7l66xb->scr = ioremap(rscr->start, rscr->end - rscr->start + 1);
+	t7l66xb->scr = ioremap(rscr->start, resource_size(rscr));
 	if (!t7l66xb->scr) {
 		ret = -ENOMEM;
 		goto err_ioremap;
@@ -403,12 +403,12 @@ static int t7l66xb_probe(struct platform_device *dev)
 err_ioremap:
 	release_resource(&t7l66xb->rscr);
 err_request_scr:
-	kfree(t7l66xb);
 	clk_put(t7l66xb->clk48m);
 err_clk48m_get:
 	clk_put(t7l66xb->clk32k);
 err_clk32k_get:
 err_noirq:
+	kfree(t7l66xb);
 	return ret;
 }
 

drivers/mfd/tc6393xb.c

@@ -647,7 +647,7 @@ static int __devinit tc6393xb_probe(struct platform_device *dev)
 	if (ret)
 		goto err_request_scr;
 
-	tc6393xb->scr = ioremap(rscr->start, rscr->end - rscr->start + 1);
+	tc6393xb->scr = ioremap(rscr->start, resource_size(rscr));
 	if (!tc6393xb->scr) {
 		ret = -ENOMEM;
 		goto err_ioremap;

drivers/mfd/ucb1x00-core.c

@@ -27,6 +27,7 @@
 #include <linux/mutex.h>
 #include <linux/mfd/ucb1x00.h>
 #include <linux/gpio.h>
+#include <linux/semaphore.h>
 
 #include <mach/dma.h>
 #include <mach/hardware.h>

drivers/mmc/host/Kconfig

@@ -365,7 +365,7 @@ config MMC_SDRICOH_CS
 
 config MMC_TMIO
 	tristate "Toshiba Mobile IO Controller (TMIO) MMC/SD function support"
-	depends on MFD_TMIO || MFD_ASIC3 || SUPERH
+	depends on MFD_TMIO || MFD_ASIC3 || MFD_SH_MOBILE_SDHI
 	help
 	  This provides support for the SD/MMC cell found in TC6393XB,
 	  T7L66XB and also HTC ASIC3

drivers/mmc/host/tmio_mmc.h

@@ -55,10 +55,8 @@
 /* Define some IRQ masks */
 /* This is the mask used at reset by the chip */
 #define TMIO_MASK_ALL           0x837f031d
-#define TMIO_MASK_READOP  (TMIO_STAT_RXRDY | TMIO_STAT_DATAEND | \
-		TMIO_STAT_CARD_REMOVE | TMIO_STAT_CARD_INSERT)
-#define TMIO_MASK_WRITEOP (TMIO_STAT_TXRQ | TMIO_STAT_DATAEND | \
-		TMIO_STAT_CARD_REMOVE | TMIO_STAT_CARD_INSERT)
+#define TMIO_MASK_READOP  (TMIO_STAT_RXRDY | TMIO_STAT_DATAEND)
+#define TMIO_MASK_WRITEOP (TMIO_STAT_TXRQ | TMIO_STAT_DATAEND)
 #define TMIO_MASK_CMD     (TMIO_STAT_CMDRESPEND | TMIO_STAT_CMDTIMEOUT | \
 		TMIO_STAT_CARD_REMOVE | TMIO_STAT_CARD_INSERT)
 #define TMIO_MASK_IRQ     (TMIO_MASK_READOP | TMIO_MASK_WRITEOP | TMIO_MASK_CMD)