change prefix for kernelpatchbase 2.6.26

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13619 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 1247 insertions, 0 deletions

diff --git a/target/linux/s3c24xx/patches-2.6.26/0100-revert-openwrt-patches-921-922-923.patch b/target/linux/s3c24xx/patches-2.6.26/0100-revert-openwrt-patches-921-922-923.patch
new file mode 100755
index 000000000..c82f52442
--- /dev/null
+++ b/target/linux/s3c24xx/patches-2.6.26/0100-revert-openwrt-patches-921-922-923.patch
@@ -0,0 +1,1247 @@
+Index: linux-2.6.26/Documentation/gpiommc.txt
+===================================================================
+--- linux-2.6.26.orig/Documentation/gpiommc.txt	2008-12-12 21:55:07.000000000 +0100
++++ /dev/null	1970-01-01 00:00:00.000000000 +0000
+@@ -1,97 +0,0 @@
+-GPIOMMC - Driver for an MMC/SD card on a bitbanging GPIO SPI bus
+-================================================================
+-
+-The gpiommc module hooks up the mmc_spi and spi_gpio modules for running an
+-MMC or SD card on GPIO pins.
+-
+-Two interfaces for registering a new MMC/SD card device are provided:
+-A static platform-device based mechanism and a dynamic configfs based interface.
+-
+-
+-Registering devices via platform-device
+-=======================================
+-
+-The platform-device interface is used for registering MMC/SD devices that are
+-part of the hardware platform. This is most useful only for embedded machines
+-with MMC/SD devices statically connected to the platform GPIO bus.
+-
+-The data structures are declared in <linux/mmc/gpiommc.h>.
+-
+-To register a new device, define an instance of struct gpiommc_platform_data.
+-This structure holds any information about how the device is hooked up to the
+-GPIO pins and what hardware modes the device supports. See the docbook-style
+-documentation in the header file for more information on the struct fields.
+-
+-Then allocate a new instance of a platform device by doing:
+-
+-	pdev = platform_device_alloc(GPIOMMC_PLATDEV_NAME, gpiommc_next_id());
+-
+-This will allocate the platform device data structures and hook it up to the
+-gpiommc driver.
+-Then add the gpiommc_platform_data to the platform device.
+-
+-	err = platform_device_add_data(pdev, pdata, sizeof(struct gpiommc_platform_data));
+-
+-You may free the local instance of struct gpiommc_platform_data now. (So the
+-struct may be allocated on the stack, too).
+-Now simply register the platform device.
+-
+-	err = platform_device_add(pdev);
+-
+-Done. The gpiommc probe routine will be invoked now and you should see a kernel
+-log message for the added device.
+-
+-
+-Registering devices via configfs
+-================================
+-
+-MMC/SD cards connected via GPIO often are a pretty dynamic thing, as for example
+-selfmade hacks for soldering an MMC/SD card to standard GPIO pins on embedded
+-hardware are a common situation.
+-So we provide a dynamic interface to conveniently handle adding and removing
+-devices from userspace, without the need to recompile the kernel.
+-
+-The "gpiommc" subdirectory at the configfs mountpoint is used for handling
+-the dynamic configuration.
+-
+-To create a new device, it must first be allocated with mkdir.
+-The following command will allocate a device named "my_mmc":
+-	mkdir /config/gpiommc/my_mmc
+-
+-There are several configuration files available in the new
+-/config/gpiommc/my_mmc/ directory:
+-
+-gpio_data_in			= The SPI data-IN GPIO pin number.
+-gpio_data_out			= The SPI data-OUT GPIO pin number.
+-gpio_clock			= The SPI Clock GPIO pin number.
+-gpio_chipselect			= The SPI Chipselect GPIO pin number.
+-gpio_chipselect_activelow	= Boolean. If 0, Chipselect is active-HIGH.
+-				  If 1, Chipselect is active-LOW.
+-spi_mode			= The SPI data mode. Can be 0-3.
+-spi_delay			= Enable all delays in the lowlevel bitbanging.
+-max_bus_speed			= The maximum SPI bus speed. In Hertz.
+-
+-register			= Not a configuration parameter.
+-				  Used to register the configured card
+-				  with the kernel.
+-
+-The device must first get configured and then registered by writing "1" to
+-the "register" file.
+-The configuration parameters "gpio_data_in", "gpio_data_out", "gpio_clock"
+-and "gpio_chipselect" are essential and _must_ be configured before writing
+-"1" to the "register" file. The registration will fail, otherwise.
+-
+-The default values for the other parameters are:
+-gpio_chipselect_activelow	= 1		(CS active-LOW)
+-spi_mode			= 0		(SPI_MODE_0)
+-spi_delay			= 1		(enabled)
+-max_bus_speed			= 5000000	(5 Mhz)
+-
+-Configuration values can not be changed after registration. To unregister
+-the device, write a "0" to the "register" file. The configuration can be
+-changed again after unregistering.
+-
+-To completely remove the device, simply rmdir the directory
+-(/config/gpiommc/my_mmc in this example).
+-There's no need to first unregister the device before removing it. That will
+-be done automatically.
+Index: linux-2.6.26/drivers/mmc/host/gpiommc.c
+===================================================================
+--- linux-2.6.26.orig/drivers/mmc/host/gpiommc.c	2008-12-12 21:55:07.000000000 +0100
++++ /dev/null	1970-01-01 00:00:00.000000000 +0000
+@@ -1,624 +0,0 @@
+-/*
+- * Driver an MMC/SD card on a bitbanging GPIO SPI bus.
+- * This module hooks up the mmc_spi and spi_gpio modules and also
+- * provides a configfs interface.
+- *
+- * Copyright 2008 Michael Buesch <mb@bu3sch.de>
+- *
+- * Licensed under the GNU/GPL. See COPYING for details.
+- */
+-
+-#include <linux/platform_device.h>
+-#include <linux/list.h>
+-#include <linux/mutex.h>
+-#include <linux/mmc/gpiommc.h>
+-#include <linux/mmc/host.h>
+-#include <linux/spi/spi_gpio.h>
+-#include <linux/spi/mmc_spi.h>
+-#include <linux/configfs.h>
+-#include <linux/gpio.h>
+-#include <asm/atomic.h>
+-
+-
+-#define PFX				"gpio-mmc: "
+-
+-
+-struct gpiommc_device {
+-	struct platform_device *pdev;
+-	struct platform_device *spi_pdev;
+-	struct spi_board_info boardinfo;
+-	struct mmc_spi_platform_data mmc_spi_data;
+-};
+-
+-
+-MODULE_DESCRIPTION("GPIO based MMC driver");
+-MODULE_AUTHOR("Michael Buesch");
+-MODULE_LICENSE("GPL");
+-
+-
+-static int gpiommc_boardinfo_setup(struct spi_board_info *bi,
+-				   struct spi_master *master,
+-				   void *data)
+-{
+-	struct gpiommc_device *d = data;
+-	struct gpiommc_platform_data *pdata = d->pdev->dev.platform_data;
+-
+-	/* Bind the SPI master to the MMC-SPI host driver. */
+-	strlcpy(bi->modalias, "mmc_spi", sizeof(bi->modalias));
+-
+-	bi->max_speed_hz = pdata->max_bus_speed;
+-	bi->bus_num = master->bus_num;
+-	bi->mode = pdata->mode;
+-	bi->platform_data = &d->mmc_spi_data;
+-
+-	return 0;
+-}
+-
+-static int gpiommc_probe(struct platform_device *pdev)
+-{
+-	struct gpiommc_platform_data *mmc_pdata = pdev->dev.platform_data;
+-	struct spi_gpio_platform_data spi_pdata;
+-	struct gpiommc_device *d;
+-	int err;
+-
+-	err = -ENXIO;
+-	if (!mmc_pdata)
+-		goto error;
+-
+-#ifdef CONFIG_MMC_SPI_MODULE
+-	err = request_module("mmc_spi");
+-	if (err) {
+-		printk(KERN_WARNING PFX
+-		       "Failed to request mmc_spi module.\n");
+-	}
+-#endif /* CONFIG_MMC_SPI_MODULE */
+-
+-	/* Allocate the GPIO-MMC device */
+-	err = -ENOMEM;
+-	d = kzalloc(sizeof(*d), GFP_KERNEL);
+-	if (!d)
+-		goto error;
+-	d->pdev = pdev;
+-	d->mmc_spi_data.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34;
+-
+-	/* Create the SPI-GPIO device */
+-	d->spi_pdev = platform_device_alloc(SPI_GPIO_PLATDEV_NAME,
+-					    spi_gpio_next_id());
+-	if (!d->spi_pdev)
+-		goto err_free_d;
+-
+-	memset(&spi_pdata, 0, sizeof(spi_pdata));
+-	spi_pdata.pin_clk = mmc_pdata->pins.gpio_clk;
+-	spi_pdata.pin_miso = mmc_pdata->pins.gpio_do;
+-	spi_pdata.pin_mosi = mmc_pdata->pins.gpio_di;
+-	spi_pdata.pin_cs = mmc_pdata->pins.gpio_cs;
+-	spi_pdata.cs_activelow = mmc_pdata->pins.cs_activelow;
+-	spi_pdata.no_spi_delay = mmc_pdata->no_spi_delay;
+-	spi_pdata.boardinfo_setup = gpiommc_boardinfo_setup;
+-	spi_pdata.boardinfo_setup_data = d;
+-
+-	err = platform_device_add_data(d->spi_pdev, &spi_pdata,
+-				       sizeof(spi_pdata));
+-	if (err)
+-		goto err_free_pdev;
+-	err = platform_device_add(d->spi_pdev);
+-	if (err)
+-		goto err_free_pdata;
+-	platform_set_drvdata(pdev, d);
+-
+-	printk(KERN_INFO PFX "MMC-Card \"%s\" "
+-	       "attached to GPIO pins di=%u, do=%u, clk=%u, cs=%u\n",
+-	       mmc_pdata->name, mmc_pdata->pins.gpio_di,
+-	       mmc_pdata->pins.gpio_do,
+-	       mmc_pdata->pins.gpio_clk,
+-	       mmc_pdata->pins.gpio_cs);
+-
+-	return 0;
+-
+-err_free_pdata:
+-	kfree(d->spi_pdev->dev.platform_data);
+-	d->spi_pdev->dev.platform_data = NULL;
+-err_free_pdev:
+-	platform_device_put(d->spi_pdev);
+-err_free_d:
+-	kfree(d);
+-error:
+-	return err;
+-}
+-
+-static int gpiommc_remove(struct platform_device *pdev)
+-{
+-	struct gpiommc_device *d = platform_get_drvdata(pdev);
+-	struct gpiommc_platform_data *pdata = d->pdev->dev.platform_data;
+-
+-	platform_device_unregister(d->spi_pdev);
+-	printk(KERN_INFO PFX "GPIO based MMC-Card \"%s\" removed\n",
+-	       pdata->name);
+-	platform_device_put(d->spi_pdev);
+-
+-	return 0;
+-}
+-
+-#ifdef CONFIG_GPIOMMC_CONFIGFS
+-
+-/* A device that was created through configfs */
+-struct gpiommc_configfs_device {
+-	struct config_item item;
+-	/* The platform device, after registration. */
+-	struct platform_device *pdev;
+-	/* The configuration */
+-	struct gpiommc_platform_data pdata;
+-	/* Mutex to protect this structure */
+-	struct mutex mutex;
+-};
+-
+-#define GPIO_INVALID	-1
+-
+-static inline bool gpiommc_is_registered(struct gpiommc_configfs_device *dev)
+-{
+-	return (dev->pdev != NULL);
+-}
+-
+-static inline struct gpiommc_configfs_device *ci_to_gpiommc(struct config_item *item)
+-{
+-	return item ? container_of(item, struct gpiommc_configfs_device, item) : NULL;
+-}
+-
+-static struct configfs_attribute gpiommc_attr_DI = {
+-	.ca_owner = THIS_MODULE,
+-	.ca_name = "gpio_data_in",
+-	.ca_mode = S_IRUGO | S_IWUSR,
+-};
+-
+-static struct configfs_attribute gpiommc_attr_DO = {
+-	.ca_owner = THIS_MODULE,
+-	.ca_name = "gpio_data_out",
+-	.ca_mode = S_IRUGO | S_IWUSR,
+-};
+-
+-static struct configfs_attribute gpiommc_attr_CLK = {
+-	.ca_owner = THIS_MODULE,
+-	.ca_name = "gpio_clock",
+-	.ca_mode = S_IRUGO | S_IWUSR,
+-};
+-
+-static struct configfs_attribute gpiommc_attr_CS = {
+-	.ca_owner = THIS_MODULE,
+-	.ca_name = "gpio_chipselect",
+-	.ca_mode = S_IRUGO | S_IWUSR,
+-};
+-
+-static struct configfs_attribute gpiommc_attr_CS_activelow = {
+-	.ca_owner = THIS_MODULE,
+-	.ca_name = "gpio_chipselect_activelow",
+-	.ca_mode = S_IRUGO | S_IWUSR,
+-};
+-
+-static struct configfs_attribute gpiommc_attr_spimode = {
+-	.ca_owner = THIS_MODULE,
+-	.ca_name = "spi_mode",
+-	.ca_mode = S_IRUGO | S_IWUSR,
+-};
+-
+-static struct configfs_attribute gpiommc_attr_spidelay = {
+-	.ca_owner = THIS_MODULE,
+-	.ca_name = "spi_delay",
+-	.ca_mode = S_IRUGO | S_IWUSR,
+-};
+-
+-static struct configfs_attribute gpiommc_attr_max_bus_speed = {
+-	.ca_owner = THIS_MODULE,
+-	.ca_name = "max_bus_speed",
+-	.ca_mode = S_IRUGO | S_IWUSR,
+-};
+-
+-static struct configfs_attribute gpiommc_attr_register = {
+-	.ca_owner = THIS_MODULE,
+-	.ca_name = "register",
+-	.ca_mode = S_IRUGO | S_IWUSR,
+-};
+-
+-static struct configfs_attribute *gpiommc_config_attrs[] = {
+-	&gpiommc_attr_DI,
+-	&gpiommc_attr_DO,
+-	&gpiommc_attr_CLK,
+-	&gpiommc_attr_CS,
+-	&gpiommc_attr_CS_activelow,
+-	&gpiommc_attr_spimode,
+-	&gpiommc_attr_spidelay,
+-	&gpiommc_attr_max_bus_speed,
+-	&gpiommc_attr_register,
+-	NULL,
+-};
+-
+-static ssize_t gpiommc_config_attr_show(struct config_item *item,
+-					struct configfs_attribute *attr,
+-					char *page)
+-{
+-	struct gpiommc_configfs_device *dev = ci_to_gpiommc(item);
+-	ssize_t count = 0;
+-	unsigned int gpio;
+-	int err = 0;
+-
+-	mutex_lock(&dev->mutex);
+-
+-	if (attr == &gpiommc_attr_DI) {
+-		gpio = dev->pdata.pins.gpio_di;
+-		if (gpio == GPIO_INVALID)
+-			count = snprintf(page, PAGE_SIZE, "not configured\n");
+-		else
+-			count = snprintf(page, PAGE_SIZE, "%u\n", gpio);
+-		goto out;
+-	}
+-	if (attr == &gpiommc_attr_DO) {
+-		gpio = dev->pdata.pins.gpio_do;
+-		if (gpio == GPIO_INVALID)
+-			count = snprintf(page, PAGE_SIZE, "not configured\n");
+-		else
+-			count = snprintf(page, PAGE_SIZE, "%u\n", gpio);
+-		goto out;
+-	}
+-	if (attr == &gpiommc_attr_CLK) {
+-		gpio = dev->pdata.pins.gpio_clk;
+-		if (gpio == GPIO_INVALID)
+-			count = snprintf(page, PAGE_SIZE, "not configured\n");
+-		else
+-			count = snprintf(page, PAGE_SIZE, "%u\n", gpio);
+-		goto out;
+-	}
+-	if (attr == &gpiommc_attr_CS) {
+-		gpio = dev->pdata.pins.gpio_cs;
+-		if (gpio == GPIO_INVALID)
+-			count = snprintf(page, PAGE_SIZE, "not configured\n");
+-		else
+-			count = snprintf(page, PAGE_SIZE, "%u\n", gpio);
+-		goto out;
+-	}
+-	if (attr == &gpiommc_attr_CS_activelow) {
+-		count = snprintf(page, PAGE_SIZE, "%u\n",
+-				 dev->pdata.pins.cs_activelow);
+-		goto out;
+-	}
+-	if (attr == &gpiommc_attr_spimode) {
+-		count = snprintf(page, PAGE_SIZE, "%u\n",
+-				 dev->pdata.mode);
+-		goto out;
+-	}
+-	if (attr == &gpiommc_attr_spidelay) {
+-		count = snprintf(page, PAGE_SIZE, "%u\n",
+-				 !dev->pdata.no_spi_delay);
+-		goto out;
+-	}
+-	if (attr == &gpiommc_attr_max_bus_speed) {
+-		count = snprintf(page, PAGE_SIZE, "%u\n",
+-				 dev->pdata.max_bus_speed);
+-		goto out;
+-	}
+-	if (attr == &gpiommc_attr_register) {
+-		count = snprintf(page, PAGE_SIZE, "%u\n",
+-				 gpiommc_is_registered(dev));
+-		goto out;
+-	}
+-	WARN_ON(1);
+-	err = -ENOSYS;
+-out:
+-	mutex_unlock(&dev->mutex);
+-
+-	return err ? err : count;
+-}
+-
+-static int gpiommc_do_register(struct gpiommc_configfs_device *dev,
+-			       const char *name)
+-{
+-	int err;
+-
+-	if (gpiommc_is_registered(dev))
+-		return 0;
+-
+-	if (!gpio_is_valid(dev->pdata.pins.gpio_di) ||
+-	    !gpio_is_valid(dev->pdata.pins.gpio_do) ||
+-	    !gpio_is_valid(dev->pdata.pins.gpio_clk) ||
+-	    !gpio_is_valid(dev->pdata.pins.gpio_cs)) {
+-		printk(KERN_ERR PFX
+-		       "configfs: Invalid GPIO pin number(s)\n");
+-		return -EINVAL;
+-	}
+-
+-	strlcpy(dev->pdata.name, name,
+-		sizeof(dev->pdata.name));
+-
+-	dev->pdev = platform_device_alloc(GPIOMMC_PLATDEV_NAME,
+-					  gpiommc_next_id());
+-	if (!dev->pdev)
+-		return -ENOMEM;
+-	err = platform_device_add_data(dev->pdev, &dev->pdata,
+-				       sizeof(dev->pdata));
+-	if (err) {
+-		platform_device_put(dev->pdev);
+-		return err;
+-	}
+-	err = platform_device_add(dev->pdev);
+-	if (err) {
+-		platform_device_put(dev->pdev);
+-		return err;
+-	}
+-
+-	return 0;
+-}
+-
+-static void gpiommc_do_unregister(struct gpiommc_configfs_device *dev)
+-{
+-	if (!gpiommc_is_registered(dev))
+-		return;
+-
+-	platform_device_unregister(dev->pdev);
+-	dev->pdev = NULL;
+-}
+-
+-static ssize_t gpiommc_config_attr_store(struct config_item *item,
+-					 struct configfs_attribute *attr,
+-					 const char *page, size_t count)
+-{
+-	struct gpiommc_configfs_device *dev = ci_to_gpiommc(item);
+-	int err = -EINVAL;
+-	unsigned long data;
+-
+-	mutex_lock(&dev->mutex);
+-
+-	if (attr == &gpiommc_attr_register) {
+-		err = strict_strtoul(page, 10, &data);
+-		if (err)
+-			goto out;
+-		err = -EINVAL;
+-		if (data == 1)
+-			err = gpiommc_do_register(dev, item->ci_name);
+-		if (data == 0) {
+-			gpiommc_do_unregister(dev);
+-			err = 0;
+-		}
+-		goto out;
+-	}
+-
+-	if (gpiommc_is_registered(dev)) {
+-		/* The rest of the config parameters can only be set
+-		 * as long as the device is not registered, yet. */
+-		err = -EBUSY;
+-		goto out;
+-	}
+-
+-	if (attr == &gpiommc_attr_DI) {
+-		err = strict_strtoul(page, 10, &data);
+-		if (err)
+-			goto out;
+-		err = -EINVAL;
+-		if (!gpio_is_valid(data))
+-			goto out;
+-		dev->pdata.pins.gpio_di = data;
+-		err = 0;
+-		goto out;
+-	}
+-	if (attr == &gpiommc_attr_DO) {
+-		err = strict_strtoul(page, 10, &data);
+-		if (err)
+-			goto out;
+-		err = -EINVAL;
+-		if (!gpio_is_valid(data))
+-			goto out;
+-		dev->pdata.pins.gpio_do = data;
+-		err = 0;
+-		goto out;
+-	}
+-	if (attr == &gpiommc_attr_CLK) {
+-		err = strict_strtoul(page, 10, &data);
+-		if (err)
+-			goto out;
+-		err = -EINVAL;
+-		if (!gpio_is_valid(data))
+-			goto out;
+-		dev->pdata.pins.gpio_clk = data;
+-		err = 0;
+-		goto out;
+-	}
+-	if (attr == &gpiommc_attr_CS) {
+-		err = strict_strtoul(page, 10, &data);
+-		if (err)
+-			goto out;
+-		err = -EINVAL;
+-		if (!gpio_is_valid(data))
+-			goto out;
+-		dev->pdata.pins.gpio_cs = data;
+-		err = 0;
+-		goto out;
+-	}
+-	if (attr == &gpiommc_attr_CS_activelow) {
+-		err = strict_strtoul(page, 10, &data);
+-		if (err)
+-			goto out;
+-		err = -EINVAL;
+-		if (data != 0 && data != 1)
+-			goto out;
+-		dev->pdata.pins.cs_activelow = data;
+-		err = 0;
+-		goto out;
+-	}
+-	if (attr == &gpiommc_attr_spimode) {
+-		err = strict_strtoul(page, 10, &data);
+-		if (err)
+-			goto out;
+-		err = -EINVAL;
+-		switch (data) {
+-		case 0:
+-			dev->pdata.mode = SPI_MODE_0;
+-			break;
+-		case 1:
+-			dev->pdata.mode = SPI_MODE_1;
+-			break;
+-		case 2:
+-			dev->pdata.mode = SPI_MODE_2;
+-			break;
+-		case 3:
+-			dev->pdata.mode = SPI_MODE_3;
+-			break;
+-		default:
+-			goto out;
+-		}
+-		err = 0;
+-		goto out;
+-	}
+-	if (attr == &gpiommc_attr_spidelay) {
+-		err = strict_strtoul(page, 10, &data);
+-		if (err)
+-			goto out;
+-		err = -EINVAL;
+-		if (data != 0 && data != 1)
+-			goto out;
+-		dev->pdata.no_spi_delay = !data;
+-		err = 0;
+-		goto out;
+-	}
+-	if (attr == &gpiommc_attr_max_bus_speed) {
+-		err = strict_strtoul(page, 10, &data);
+-		if (err)
+-			goto out;
+-		err = -EINVAL;
+-		if (data > UINT_MAX)
+-			goto out;
+-		dev->pdata.max_bus_speed = data;
+-		err = 0;
+-		goto out;
+-	}
+-	WARN_ON(1);
+-	err = -ENOSYS;
+-out:
+-	mutex_unlock(&dev->mutex);
+-
+-	return err ? err : count;
+-}
+-
+-static void gpiommc_config_item_release(struct config_item *item)
+-{
+-	struct gpiommc_configfs_device *dev = ci_to_gpiommc(item);
+-
+-	kfree(dev);
+-}
+-
+-static struct configfs_item_operations gpiommc_config_item_ops = {
+-	.release		= gpiommc_config_item_release,
+-	.show_attribute		= gpiommc_config_attr_show,
+-	.store_attribute	= gpiommc_config_attr_store,
+-};
+-
+-static struct config_item_type gpiommc_dev_ci_type = {
+-	.ct_item_ops	= &gpiommc_config_item_ops,
+-	.ct_attrs	= gpiommc_config_attrs,
+-	.ct_owner	= THIS_MODULE,
+-};
+-
+-static struct config_item *gpiommc_make_item(struct config_group *group,
+-					     const char *name)
+-{
+-	struct gpiommc_configfs_device *dev;
+-
+-	if (strlen(name) > GPIOMMC_MAX_NAMELEN) {
+-		printk(KERN_ERR PFX "configfs: device name too long\n");
+-		return NULL;
+-	}
+-
+-	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+-	if (!dev)
+-		return NULL;
+-
+-	mutex_init(&dev->mutex);
+-	config_item_init_type_name(&dev->item, name,
+-				   &gpiommc_dev_ci_type);
+-
+-	/* Assign default configuration */
+-	dev->pdata.pins.gpio_di = GPIO_INVALID;
+-	dev->pdata.pins.gpio_do = GPIO_INVALID;
+-	dev->pdata.pins.gpio_clk = GPIO_INVALID;
+-	dev->pdata.pins.gpio_cs = GPIO_INVALID;
+-	dev->pdata.pins.cs_activelow = 1;
+-	dev->pdata.mode = SPI_MODE_0;
+-	dev->pdata.no_spi_delay = 0;
+-	dev->pdata.max_bus_speed = 5000000; /* 5 MHz */
+-
+-	return &(dev->item);
+-}
+-
+-static void gpiommc_drop_item(struct config_group *group,
+-			      struct config_item *item)
+-{
+-	struct gpiommc_configfs_device *dev = ci_to_gpiommc(item);
+-
+-	gpiommc_do_unregister(dev);
+-	kfree(dev);
+-}
+-
+-static struct configfs_group_operations gpiommc_ct_group_ops = {
+-	.make_item	= gpiommc_make_item,
+-	.drop_item	= gpiommc_drop_item,
+-};
+-
+-static struct config_item_type gpiommc_ci_type = {
+-	.ct_group_ops	= &gpiommc_ct_group_ops,
+-	.ct_owner	= THIS_MODULE,
+-};
+-
+-static struct configfs_subsystem gpiommc_subsys = {
+-	.su_group = {
+-		.cg_item = {
+-			.ci_namebuf = GPIOMMC_PLATDEV_NAME,
+-			.ci_type = &gpiommc_ci_type,
+-		},
+-	},
+-	.su_mutex = __MUTEX_INITIALIZER(gpiommc_subsys.su_mutex),
+-};
+-
+-#endif /* CONFIG_GPIOMMC_CONFIGFS */
+-
+-static struct platform_driver gpiommc_plat_driver = {
+-	.probe	= gpiommc_probe,
+-	.remove	= gpiommc_remove,
+-	.driver	= {
+-		.name	= GPIOMMC_PLATDEV_NAME,
+-		.owner	= THIS_MODULE,
+-	},
+-};
+-
+-int gpiommc_next_id(void)
+-{
+-	static atomic_t counter = ATOMIC_INIT(-1);
+-
+-	return atomic_inc_return(&counter);
+-}
+-EXPORT_SYMBOL(gpiommc_next_id);
+-
+-static int __init gpiommc_modinit(void)
+-{
+-	int err;
+-
+-	err = platform_driver_register(&gpiommc_plat_driver);
+-	if (err)
+-		return err;
+-
+-#ifdef CONFIG_GPIOMMC_CONFIGFS
+-	config_group_init(&gpiommc_subsys.su_group);
+-	err = configfs_register_subsystem(&gpiommc_subsys);
+-	if (err) {
+-		platform_driver_unregister(&gpiommc_plat_driver);
+-		return err;
+-	}
+-#endif /* CONFIG_GPIOMMC_CONFIGFS */
+-
+-	return 0;
+-}
+-module_init(gpiommc_modinit);
+-
+-static void __exit gpiommc_modexit(void)
+-{
+-#ifdef CONFIG_GPIOMMC_CONFIGFS
+-	configfs_unregister_subsystem(&gpiommc_subsys);
+-#endif
+-	platform_driver_unregister(&gpiommc_plat_driver);
+-}
+-module_exit(gpiommc_modexit);
+Index: linux-2.6.26/drivers/mmc/host/Kconfig
+===================================================================
+--- linux-2.6.26.orig/drivers/mmc/host/Kconfig	2008-12-12 21:55:07.000000000 +0100
++++ linux-2.6.26/drivers/mmc/host/Kconfig	2008-12-12 21:55:25.000000000 +0100
+@@ -130,27 +130,3 @@ config MMC_SPI
+ 
+ 	  If unsure, or if your system has no SPI master driver, say N.
+ 
+-config GPIOMMC
+-	tristate "MMC/SD over GPIO-based SPI"
+-	depends on MMC && MMC_SPI && SPI_GPIO
+-	help
+-	  This driver hooks up the mmc_spi and spi_gpio modules so that
+-	  MMC/SD cards can be used on a GPIO based bus by bitbanging
+-	  the SPI protocol in software.
+-
+-	  This driver provides a configfs interface to dynamically create
+-	  and destroy GPIO-based MMC/SD card devices. It also provides
+-	  a platform device interface API.
+-	  See Documentation/gpiommc.txt for details.
+-
+-	  The module will be called gpiommc.
+-
+-	  If unsure, say N.
+-
+-config GPIOMMC_CONFIGFS
+-	bool
+-	depends on GPIOMMC && CONFIGFS_FS
+-	default y
+-	help
+-	  This option automatically enables configfs support for gpiommc
+-	  if configfs is available.
+Index: linux-2.6.26/drivers/mmc/host/Makefile
+===================================================================
+--- linux-2.6.26.orig/drivers/mmc/host/Makefile	2008-12-12 21:55:07.000000000 +0100
++++ linux-2.6.26/drivers/mmc/host/Makefile	2008-12-12 21:55:25.000000000 +0100
+@@ -17,4 +17,4 @@ obj-$(CONFIG_MMC_OMAP)		+= omap.o
+ obj-$(CONFIG_MMC_AT91)		+= at91_mci.o
+ obj-$(CONFIG_MMC_TIFM_SD)	+= tifm_sd.o
+ obj-$(CONFIG_MMC_SPI)		+= mmc_spi.o
+-obj-$(CONFIG_GPIOMMC)		+= gpiommc.o
++
+Index: linux-2.6.26/drivers/spi/Kconfig
+===================================================================
+--- linux-2.6.26.orig/drivers/spi/Kconfig	2008-12-12 21:55:07.000000000 +0100
++++ linux-2.6.26/drivers/spi/Kconfig	2008-12-12 21:55:25.000000000 +0100
+@@ -100,19 +100,6 @@ config SPI_BUTTERFLY
+ 	  inexpensive battery powered microcontroller evaluation board.
+ 	  This same cable can be used to flash new firmware.
+ 
+-config SPI_GPIO
+-	tristate "GPIO API based bitbanging SPI controller"
+-	depends on SPI_MASTER && GENERIC_GPIO
+-	select SPI_BITBANG
+-	help
+-	  This is a platform driver that can be used for bitbanging
+-	  an SPI bus over GPIO pins.
+-	  Select this if you have any SPI device that is connected via
+-	  GPIO pins.
+-	  The module will be called spi_gpio.
+-
+-	  If unsure, say N.
+-
+ config SPI_IMX
+ 	tristate "Freescale iMX SPI controller"
+ 	depends on SPI_MASTER && ARCH_IMX && EXPERIMENTAL
+Index: linux-2.6.26/drivers/spi/Makefile
+===================================================================
+--- linux-2.6.26.orig/drivers/spi/Makefile	2008-12-12 21:55:07.000000000 +0100
++++ linux-2.6.26/drivers/spi/Makefile	2008-12-12 21:55:25.000000000 +0100
+@@ -16,7 +16,6 @@ obj-$(CONFIG_SPI_BFIN)			+= spi_bfin5xx.
+ obj-$(CONFIG_SPI_BITBANG)		+= spi_bitbang.o
+ obj-$(CONFIG_SPI_AU1550)		+= au1550_spi.o
+ obj-$(CONFIG_SPI_BUTTERFLY)		+= spi_butterfly.o
+-obj-$(CONFIG_SPI_GPIO)			+= spi_gpio.o
+ obj-$(CONFIG_SPI_IMX)			+= spi_imx.o
+ obj-$(CONFIG_SPI_LM70_LLP)		+= spi_lm70llp.o
+ obj-$(CONFIG_SPI_PXA2XX)		+= pxa2xx_spi.o
+Index: linux-2.6.26/drivers/spi/spi_gpio.c
+===================================================================
+--- linux-2.6.26.orig/drivers/spi/spi_gpio.c	2008-12-12 21:55:07.000000000 +0100
++++ /dev/null	1970-01-01 00:00:00.000000000 +0000
+@@ -1,251 +0,0 @@
+-/*
+- * Bitbanging SPI bus driver using GPIO API
+- *
+- * Copyright (c) 2008 Piotr Skamruk
+- * Copyright (c) 2008 Michael Buesch
+- *
+- * based on spi_s3c2410_gpio.c
+- *   Copyright (c) 2006 Ben Dooks
+- *   Copyright (c) 2006 Simtec Electronics
+- * and on i2c-gpio.c
+- *   Copyright (C) 2007 Atmel Corporation
+- *
+- * 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/delay.h>
+-#include <linux/spinlock.h>
+-#include <linux/workqueue.h>
+-#include <linux/module.h>
+-#include <linux/platform_device.h>
+-#include <linux/spi/spi.h>
+-#include <linux/spi/spi_bitbang.h>
+-#include <linux/spi/spi_gpio.h>
+-#include <linux/gpio.h>
+-#include <asm/atomic.h>
+-
+-
+-struct spi_gpio {
+-	struct spi_bitbang bitbang;
+-	struct spi_gpio_platform_data *info;
+-	struct platform_device *pdev;
+-	struct spi_board_info bi;
+-};
+-
+-
+-static inline struct spi_gpio *spidev_to_sg(struct spi_device *dev)
+-{
+-	return dev->controller_data;
+-}
+-
+-static inline void setsck(struct spi_device *dev, int val)
+-{
+-	struct spi_gpio *sp = spidev_to_sg(dev);
+-	gpio_set_value(sp->info->pin_clk, val ? 1 : 0);
+-}
+-
+-static inline void setmosi(struct spi_device *dev, int val)
+-{
+-	struct spi_gpio *sp = spidev_to_sg(dev);
+-	gpio_set_value(sp->info->pin_mosi, val ? 1 : 0);
+-}
+-
+-static inline u32 getmiso(struct spi_device *dev)
+-{
+-	struct spi_gpio *sp = spidev_to_sg(dev);
+-	return gpio_get_value(sp->info->pin_miso) ? 1 : 0;
+-}
+-
+-static inline void do_spidelay(struct spi_device *dev, unsigned nsecs)
+-{
+-	struct spi_gpio *sp = spidev_to_sg(dev);
+-
+-	if (!sp->info->no_spi_delay)
+-		ndelay(nsecs);
+-}
+-
+-#define spidelay(nsecs) do {					\
+-	/* Steal the spi_device pointer from our caller.	\
+-	 * The bitbang-API should probably get fixed here... */	\
+-	do_spidelay(spi, nsecs);				\
+-  } while (0)
+-
+-#define EXPAND_BITBANG_TXRX
+-#include <linux/spi/spi_bitbang.h>
+-
+-static u32 spi_gpio_txrx_mode0(struct spi_device *spi,
+-			       unsigned nsecs, u32 word, u8 bits)
+-{
+-	return bitbang_txrx_be_cpha0(spi, nsecs, 0, word, bits);
+-}
+-
+-static u32 spi_gpio_txrx_mode1(struct spi_device *spi,
+-			       unsigned nsecs, u32 word, u8 bits)
+-{
+-	return bitbang_txrx_be_cpha1(spi, nsecs, 0, word, bits);
+-}
+-
+-static u32 spi_gpio_txrx_mode2(struct spi_device *spi,
+-			       unsigned nsecs, u32 word, u8 bits)
+-{
+-	return bitbang_txrx_be_cpha0(spi, nsecs, 1, word, bits);
+-}
+-
+-static u32 spi_gpio_txrx_mode3(struct spi_device *spi,
+-			       unsigned nsecs, u32 word, u8 bits)
+-{
+-	return bitbang_txrx_be_cpha1(spi, nsecs, 1, word, bits);
+-}
+-
+-static void spi_gpio_chipselect(struct spi_device *dev, int on)
+-{
+-	struct spi_gpio *sp = spidev_to_sg(dev);
+-
+-	if (sp->info->cs_activelow)
+-		on = !on;
+-	gpio_set_value(sp->info->pin_cs, on ? 1 : 0);
+-}
+-
+-static int spi_gpio_probe(struct platform_device *pdev)
+-{
+-	struct spi_master *master;
+-	struct spi_gpio_platform_data *pdata;
+-	struct spi_gpio *sp;
+-	struct spi_device *spidev;
+-	int err;
+-
+-	pdata = pdev->dev.platform_data;
+-	if (!pdata)
+-		return -ENXIO;
+-
+-	err = -ENOMEM;
+-	master = spi_alloc_master(&pdev->dev, sizeof(struct spi_gpio));
+-	if (!master)
+-		goto err_alloc_master;
+-
+-	sp = spi_master_get_devdata(master);
+-	platform_set_drvdata(pdev, sp);
+-	sp->info = pdata;
+-
+-	err = gpio_request(pdata->pin_clk, "spi_clock");
+-	if (err)
+-		goto err_request_clk;
+-	err = gpio_request(pdata->pin_mosi, "spi_mosi");
+-	if (err)
+-		goto err_request_mosi;
+-	err = gpio_request(pdata->pin_miso, "spi_miso");
+-	if (err)
+-		goto err_request_miso;
+-	err = gpio_request(pdata->pin_cs, "spi_cs");
+-	if (err)
+-		goto err_request_cs;
+-
+-	sp->bitbang.master = spi_master_get(master);
+-	sp->bitbang.master->bus_num = -1;
+-	sp->bitbang.master->num_chipselect = 1;
+-	sp->bitbang.chipselect = spi_gpio_chipselect;
+-	sp->bitbang.txrx_word[SPI_MODE_0] = spi_gpio_txrx_mode0;
+-	sp->bitbang.txrx_word[SPI_MODE_1] = spi_gpio_txrx_mode1;
+-	sp->bitbang.txrx_word[SPI_MODE_2] = spi_gpio_txrx_mode2;
+-	sp->bitbang.txrx_word[SPI_MODE_3] = spi_gpio_txrx_mode3;
+-
+-	gpio_direction_output(pdata->pin_clk, 0);
+-	gpio_direction_output(pdata->pin_mosi, 0);
+-	gpio_direction_output(pdata->pin_cs,
+-			      pdata->cs_activelow ? 1 : 0);
+-	gpio_direction_input(pdata->pin_miso);
+-
+-	err = spi_bitbang_start(&sp->bitbang);
+-	if (err)
+-		goto err_no_bitbang;
+-	err = pdata->boardinfo_setup(&sp->bi, master,
+-				     pdata->boardinfo_setup_data);
+-	if (err)
+-		goto err_bi_setup;
+-	sp->bi.controller_data = sp;
+-	spidev = spi_new_device(master, &sp->bi);
+-	if (!spidev)
+-		goto err_new_dev;
+-
+-	return 0;
+-
+-err_new_dev:
+-err_bi_setup:
+-	spi_bitbang_stop(&sp->bitbang);
+-err_no_bitbang:
+-	spi_master_put(sp->bitbang.master);
+-	gpio_free(pdata->pin_cs);
+-err_request_cs:
+-	gpio_free(pdata->pin_miso);
+-err_request_miso:
+-	gpio_free(pdata->pin_mosi);
+-err_request_mosi:
+-	gpio_free(pdata->pin_clk);
+-err_request_clk:
+-	kfree(master);
+-
+-err_alloc_master:
+-	return err;
+-}
+-
+-static int __devexit spi_gpio_remove(struct platform_device *pdev)
+-{
+-	struct spi_gpio *sp;
+-	struct spi_gpio_platform_data *pdata;
+-
+-	pdata = pdev->dev.platform_data;
+-	sp = platform_get_drvdata(pdev);
+-
+-	gpio_free(pdata->pin_clk);
+-	gpio_free(pdata->pin_mosi);
+-	gpio_free(pdata->pin_miso);
+-	gpio_free(pdata->pin_cs);
+-	spi_bitbang_stop(&sp->bitbang);
+-	spi_master_put(sp->bitbang.master);
+-
+-	return 0;
+-}
+-
+-static struct platform_driver spi_gpio_driver = {
+-	.driver		= {
+-		.name	= SPI_GPIO_PLATDEV_NAME,
+-		.owner	= THIS_MODULE,
+-	},
+-	.probe		= spi_gpio_probe,
+-	.remove		= __devexit_p(spi_gpio_remove),
+-};
+-
+-int spi_gpio_next_id(void)
+-{
+-	static atomic_t counter = ATOMIC_INIT(-1);
+-
+-	return atomic_inc_return(&counter);
+-}
+-EXPORT_SYMBOL(spi_gpio_next_id);
+-
+-static int __init spi_gpio_init(void)
+-{
+-	int err;
+-
+-	err = platform_driver_register(&spi_gpio_driver);
+-	if (err)
+-		printk(KERN_ERR "spi-gpio: register failed: %d\n", err);
+-
+-	return err;
+-}
+-module_init(spi_gpio_init);
+-
+-static void __exit spi_gpio_exit(void)
+-{
+-	platform_driver_unregister(&spi_gpio_driver);
+-}
+-module_exit(spi_gpio_exit);
+-
+-MODULE_AUTHOR("Piot Skamruk <piotr.skamruk at gmail.com>");
+-MODULE_AUTHOR("Michael Buesch");
+-MODULE_DESCRIPTION("Platform independent GPIO bitbanging SPI driver");
+-MODULE_LICENSE("GPL v2");
+Index: linux-2.6.26/include/linux/mmc/gpiommc.h
+===================================================================
+--- linux-2.6.26.orig/include/linux/mmc/gpiommc.h	2008-12-12 21:55:07.000000000 +0100
++++ /dev/null	1970-01-01 00:00:00.000000000 +0000
+@@ -1,71 +0,0 @@
+-/*
+- * Device driver for MMC/SD cards driven over a GPIO bus.
+- *
+- * Copyright (c) 2008 Michael Buesch
+- *
+- * Licensed under the GNU/GPL version 2.
+- */
+-#ifndef LINUX_GPIOMMC_H_
+-#define LINUX_GPIOMMC_H_
+-
+-#include <linux/types.h>
+-
+-
+-#define GPIOMMC_MAX_NAMELEN		15
+-#define GPIOMMC_MAX_NAMELEN_STR		__stringify(GPIOMMC_MAX_NAMELEN)
+-
+-/**
+- * struct gpiommc_pins - Hardware pin assignments
+- *
+- * @gpio_di: The GPIO number of the DATA IN pin
+- * @gpio_do: The GPIO number of the DATA OUT pin
+- * @gpio_clk: The GPIO number of the CLOCK pin
+- * @gpio_cs: The GPIO number of the CHIPSELECT pin
+- * @cs_activelow: If true, the chip is considered selected if @gpio_cs is low.
+- */
+-struct gpiommc_pins {
+-	unsigned int gpio_di;
+-	unsigned int gpio_do;
+-	unsigned int gpio_clk;
+-	unsigned int gpio_cs;
+-	bool cs_activelow;
+-};
+-
+-/**
+- * struct gpiommc_platform_data - Platform data for a MMC-over-SPI-GPIO device.
+- *
+- * @name: The unique name string of the device.
+- * @pins: The hardware pin assignments.
+- * @mode: The hardware mode. This is either SPI_MODE_0,
+- *        SPI_MODE_1, SPI_MODE_2 or SPI_MODE_3. See the SPI documentation.
+- * @no_spi_delay: Do not use delays in the lowlevel SPI bitbanging code.
+- *                This is not standards compliant, but may be required for some
+- *                embedded machines to gain reasonable speed.
+- * @max_bus_speed: The maximum speed of the SPI bus, in Hertz.
+- */
+-struct gpiommc_platform_data {
+-	char name[GPIOMMC_MAX_NAMELEN + 1];
+-	struct gpiommc_pins pins;
+-	u8 mode;
+-	bool no_spi_delay;
+-	unsigned int max_bus_speed;
+-};
+-
+-/**
+- * GPIOMMC_PLATDEV_NAME - The platform device name string.
+- *
+- * The name string that has to be used for platform_device_alloc
+- * when allocating a gpiommc device.
+- */
+-#define GPIOMMC_PLATDEV_NAME	"gpiommc"
+-
+-/**
+- * gpiommc_next_id - Get another platform device ID number.
+- *
+- * This returns the next platform device ID number that has to be used
+- * for platform_device_alloc. The ID is opaque and should not be used for
+- * anything else.
+- */
+-int gpiommc_next_id(void);
+-
+-#endif /* LINUX_GPIOMMC_H_ */
+Index: linux-2.6.26/include/linux/spi/spi_gpio.h
+===================================================================
+--- linux-2.6.26.orig/include/linux/spi/spi_gpio.h	2008-12-12 21:55:07.000000000 +0100
++++ /dev/null	1970-01-01 00:00:00.000000000 +0000
+@@ -1,73 +0,0 @@
+-/*
+- * spi_gpio interface to platform code
+- *
+- * Copyright (c) 2008 Piotr Skamruk
+- * Copyright (c) 2008 Michael Buesch
+- *
+- * 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.
+- */
+-#ifndef _LINUX_SPI_SPI_GPIO
+-#define _LINUX_SPI_SPI_GPIO
+-
+-#include <linux/types.h>
+-#include <linux/spi/spi.h>
+-
+-
+-/**
+- * struct spi_gpio_platform_data - Data definitions for a SPI-GPIO device.
+- *
+- * This structure holds information about a GPIO-based SPI device.
+- *
+- * @pin_clk: The GPIO pin number of the CLOCK pin.
+- *
+- * @pin_miso: The GPIO pin number of the MISO pin.
+- *
+- * @pin_mosi: The GPIO pin number of the MOSI pin.
+- *
+- * @pin_cs: The GPIO pin number of the CHIPSELECT pin.
+- *
+- * @cs_activelow: If true, the chip is selected when the CS line is low.
+- *
+- * @no_spi_delay: If true, no delay is done in the lowlevel bitbanging.
+- *                Note that doing no delay is not standards compliant,
+- *                but it might be needed to speed up transfers on some
+- *                slow embedded machines.
+- *
+- * @boardinfo_setup: This callback is called after the
+- *                   SPI master device was registered, but before the
+- *                   device is registered.
+- * @boardinfo_setup_data: Data argument passed to boardinfo_setup().
+- */
+-struct spi_gpio_platform_data {
+-	unsigned int pin_clk;
+-	unsigned int pin_miso;
+-	unsigned int pin_mosi;
+-	unsigned int pin_cs;
+-	bool cs_activelow;
+-	bool no_spi_delay;
+-	int (*boardinfo_setup)(struct spi_board_info *bi,
+-			       struct spi_master *master,
+-			       void *data);
+-	void *boardinfo_setup_data;
+-};
+-
+-/**
+- * SPI_GPIO_PLATDEV_NAME - The platform device name string.
+- *
+- * The name string that has to be used for platform_device_alloc
+- * when allocating a spi-gpio device.
+- */
+-#define SPI_GPIO_PLATDEV_NAME	"spi-gpio"
+-
+-/**
+- * spi_gpio_next_id - Get another platform device ID number.
+- *
+- * This returns the next platform device ID number that has to be used
+- * for platform_device_alloc. The ID is opaque and should not be used for
+- * anything else.
+- */
+-int spi_gpio_next_id(void);
+-
+-#endif /* _LINUX_SPI_SPI_GPIO */
+Index: linux-2.6.26/MAINTAINERS
+===================================================================
+--- linux-2.6.26.orig/MAINTAINERS	2008-12-12 21:55:07.000000000 +0100
++++ linux-2.6.26/MAINTAINERS	2008-12-12 21:55:25.000000000 +0100
+@@ -1818,11 +1818,6 @@ L:	gigaset307x-common@lists.sourceforge.
+ W:	http://gigaset307x.sourceforge.net/
+ S:	Maintained
+ 
+-GPIOMMC DRIVER
+-P:	Michael Buesch
+-M:	mb@bu3sch.de
+-S:	Maintained
+-
+ HARDWARE MONITORING
+ P:	Mark M. Hoffman
+ M:	mhoffman@lightlink.com
+@@ -3800,11 +3795,6 @@ L:	cbe-oss-dev@ozlabs.org
+ W:	http://www.ibm.com/developerworks/power/cell/
+ S:	Supported
+ 
+-SPI GPIO MASTER DRIVER
+-P:	Michael Buesch
+-M:	mb@bu3sch.de
+-S:	Maintained
+-
+ STABLE BRANCH:
+ P:	Greg Kroah-Hartman
+ M:	greg@kroah.com