Merge branch 'akpm'

* akpm: (182 commits) fbdev: bf54x-lq043fb: use kzalloc over kmalloc/memset fbdev: *bfin*: fix __dev{init,exit} markings fbdev: *bfin*: drop unnecessary calls to memset fbdev: bfin-t350mcqb-fb: drop unused local variables fbdev: blackfin has __raw I/O accessors, so use them in fb.h fbdev: s1d13xxxfb: add accelerated bitblt functions tcx: use standard fields for framebuffer physical address and length fbdev: add support for handoff from firmware to hw framebuffers intelfb: fix a bug when changing video timing fbdev: use framebuffer_release() for freeing fb_info structures radeon: P2G2CLK_ALWAYS_ONb tested twice, should 2nd be P2G2CLK_DAC_ALWAYS_ONb? s3c-fb: CPUFREQ frequency scaling support s3c-fb: fix resource releasing on error during probing carminefb: fix possible access beyond end of carmine_modedb[] acornfb: remove fb_mmap function mb862xxfb: use CONFIG_OF instead of CONFIG_PPC_OF mb862xxfb: restrict compliation of platform driver to PPC Samsung SoC Framebuffer driver: add Alpha Channel support atmel-lcdc: fix pixclock upper bound detection offb: use framebuffer_alloc() to allocate fb_info struct ... Manually fix up conflicts due to kmemcheck in mm/slab.c
author: Linus Torvalds <torvalds@linux-foundation.org> 2009-06-16 19:50:13 -0700
committer: Linus Torvalds <torvalds@linux-foundation.org> 2009-06-16 19:50:13 -0700
commit: 517d08699b250021303f9a7cf0d758b6dc0748ed (patch)
tree: 5e5b0134c3fffb78fe9d8b1641a64ff28fdd7bbc /drivers
parent: 8eeee4e2f04fc551f50c9d9847da2d73d7d33728 (diff)
parent: a34601c5d84134055782ee031d58d82f5440e918 (diff)
download: linux-517d08699b250021303f9a7cf0d758b6dc0748ed.tar.bz2
49 files changed, 1596 insertions, 335 deletions
diff --git a/drivers/Kconfig b/drivers/Kconfig
index 00cf9553f740..a442c8f29fc1 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -104,6 +104,8 @@ source "drivers/auxdisplay/Kconfig"
 
 source "drivers/uio/Kconfig"
 
+source "drivers/vlynq/Kconfig"
+
 source "drivers/xen/Kconfig"
 
 source "drivers/staging/Kconfig"
diff --git a/drivers/Makefile b/drivers/Makefile
index 9e7d4e56c85b..00b44f4ccf03 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -105,6 +105,7 @@ obj-$(CONFIG_PPC_PS3)		+= ps3/
 obj-$(CONFIG_OF)		+= of/
 obj-$(CONFIG_SSB)		+= ssb/
 obj-$(CONFIG_VIRTIO)		+= virtio/
+obj-$(CONFIG_VLYNQ)		+= vlynq/
 obj-$(CONFIG_STAGING)		+= staging/
 obj-y				+= platform/
 obj-y				+= ieee802154/
diff --git a/drivers/base/node.c b/drivers/base/node.c
index 40b809742a1c..91d4087b4039 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -72,10 +72,8 @@ static ssize_t node_read_meminfo(struct sys_device * dev,
 		       "Node %d Inactive(anon): %8lu kB\n"
 		       "Node %d Active(file):   %8lu kB\n"
 		       "Node %d Inactive(file): %8lu kB\n"
-#ifdef CONFIG_UNEVICTABLE_LRU
 		       "Node %d Unevictable:    %8lu kB\n"
 		       "Node %d Mlocked:        %8lu kB\n"
-#endif
 #ifdef CONFIG_HIGHMEM
 		       "Node %d HighTotal:      %8lu kB\n"
 		       "Node %d HighFree:       %8lu kB\n"
@@ -105,10 +103,8 @@ static ssize_t node_read_meminfo(struct sys_device * dev,
 		       nid, K(node_page_state(nid, NR_INACTIVE_ANON)),
 		       nid, K(node_page_state(nid, NR_ACTIVE_FILE)),
 		       nid, K(node_page_state(nid, NR_INACTIVE_FILE)),
-#ifdef CONFIG_UNEVICTABLE_LRU
 		       nid, K(node_page_state(nid, NR_UNEVICTABLE)),
 		       nid, K(node_page_state(nid, NR_MLOCK)),
-#endif
 #ifdef CONFIG_HIGHMEM
 		       nid, K(i.totalhigh),
 		       nid, K(i.freehigh),
diff --git a/drivers/char/vt.c b/drivers/char/vt.c
index c796a86ab7f3..d9113b4c76e3 100644
--- a/drivers/char/vt.c
+++ b/drivers/char/vt.c
@@ -171,8 +171,9 @@ int do_poke_blanked_console;
 int console_blanked;
 
 static int vesa_blank_mode; /* 0:none 1:suspendV 2:suspendH 3:powerdown */
-static int blankinterval = 10*60*HZ;
 static int vesa_off_interval;
+static int blankinterval = 10*60;
+core_param(consoleblank, blankinterval, int, 0444);
 
 static DECLARE_WORK(console_work, console_callback);
 
@@ -1485,7 +1486,7 @@ static void setterm_command(struct vc_data *vc)
 			update_attr(vc);
 			break;
 		case 9:	/* set blanking interval */
-			blankinterval = ((vc->vc_par[1] < 60) ? vc->vc_par[1] : 60) * 60 * HZ;
+			blankinterval = ((vc->vc_par[1] < 60) ? vc->vc_par[1] : 60) * 60;
 			poke_blanked_console();
 			break;
 		case 10: /* set bell frequency in Hz */
@@ -2871,7 +2872,7 @@ static int __init con_init(void)
 
 	if (blankinterval) {
 		blank_state = blank_normal_wait;
-		mod_timer(&console_timer, jiffies + blankinterval);
+		mod_timer(&console_timer, jiffies + (blankinterval * HZ));
 	}
 
 	for (currcons = 0; currcons < MIN_NR_CONSOLES; currcons++) {
@@ -3677,7 +3678,7 @@ void do_unblank_screen(int leaving_gfx)
 		return; /* but leave console_blanked != 0 */
 
 	if (blankinterval) {
-		mod_timer(&console_timer, jiffies + blankinterval);
+		mod_timer(&console_timer, jiffies + (blankinterval * HZ));
 		blank_state = blank_normal_wait;
 	}
 
@@ -3711,7 +3712,7 @@ void unblank_screen(void)
 static void blank_screen_t(unsigned long dummy)
 {
 	if (unlikely(!keventd_up())) {
-		mod_timer(&console_timer, jiffies + blankinterval);
+		mod_timer(&console_timer, jiffies + (blankinterval * HZ));
 		return;
 	}
 	blank_timer_expired = 1;
@@ -3741,7 +3742,7 @@ void poke_blanked_console(void)
 	if (console_blanked)
 		unblank_screen();
 	else if (blankinterval) {
-		mod_timer(&console_timer, jiffies + blankinterval);
+		mod_timer(&console_timer, jiffies + (blankinterval * HZ));
 		blank_state = blank_normal_wait;
 	}
 }
diff --git a/drivers/clocksource/acpi_pm.c b/drivers/clocksource/acpi_pm.c
index 40bd8c61c7d7..72a633a6ec98 100644
--- a/drivers/clocksource/acpi_pm.c
+++ b/drivers/clocksource/acpi_pm.c
@@ -18,6 +18,7 @@
 
 #include <linux/acpi_pmtmr.h>
 #include <linux/clocksource.h>
+#include <linux/timex.h>
 #include <linux/errno.h>
 #include <linux/init.h>
 #include <linux/pci.h>
diff --git a/drivers/eisa/eisa.ids b/drivers/eisa/eisa.ids
index ed69837d8b74..6cbb7a514436 100644
--- a/drivers/eisa/eisa.ids
+++ b/drivers/eisa/eisa.ids
@@ -1140,6 +1140,11 @@ NON0301 "c't Universale Graphic Adapter"
 NON0401 "c't Universal Ethernet Adapter"
 NON0501 "c't Universal 16-Bit Sound Adapter"
 NON0601 "c't Universal 8-Bit Adapter"
+NPI0120 "Network Peripherals NP-EISA-1 FDDI Interface"
+NPI0221 "Network Peripherals NP-EISA-2 FDDI Interface"
+NPI0223 "Network Peripherals NP-EISA-2E Enhanced FDDI Interface"
+NPI0301 "Network Peripherals NP-EISA-3 FDDI Interface"
+NPI0303 "Network Peripherals NP-EISA-3E Enhanced FDDI Interface"
 NSS0011 "Newport Systems Solutions WNIC Adapter"
 NVL0701 "Novell NE3200 Bus Master Ethernet"
 NVL0702 "Novell NE3200T Bus Master Ethernet"
diff --git a/drivers/firmware/memmap.c b/drivers/firmware/memmap.c
index 05aa2d406ac6..d5ea8a68d338 100644
--- a/drivers/firmware/memmap.c
+++ b/drivers/firmware/memmap.c
@@ -31,8 +31,12 @@
  * information is necessary as for the resource tree.
  */
 struct firmware_map_entry {
-	resource_size_t		start;	/* start of the memory range */
-	resource_size_t		end;	/* end of the memory range (incl.) */
+	/*
+	 * start and end must be u64 rather than resource_size_t, because e820
+	 * resources can lie at addresses above 4G.
+	 */
+	u64			start;	/* start of the memory range */
+	u64			end;	/* end of the memory range (incl.) */
 	const char		*type;	/* type of the memory range */
 	struct list_head	list;	/* entry for the linked list */
 	struct kobject		kobj;   /* kobject for each entry */
@@ -101,7 +105,7 @@ static LIST_HEAD(map_entries);
  * Common implementation of firmware_map_add() and firmware_map_add_early()
  * which expects a pre-allocated struct firmware_map_entry.
  **/
-static int firmware_map_add_entry(resource_size_t start, resource_size_t end,
+static int firmware_map_add_entry(u64 start, u64 end,
 				  const char *type,
 				  struct firmware_map_entry *entry)
 {
@@ -132,8 +136,7 @@ static int firmware_map_add_entry(resource_size_t start, resource_size_t end,
  *
  * Returns 0 on success, or -ENOMEM if no memory could be allocated.
  **/
-int firmware_map_add(resource_size_t start, resource_size_t end,
-		     const char *type)
+int firmware_map_add(u64 start, u64 end, const char *type)
 {
 	struct firmware_map_entry *entry;
 
@@ -157,8 +160,7 @@ int firmware_map_add(resource_size_t start, resource_size_t end,
  *
  * Returns 0 on success, or -ENOMEM if no memory could be allocated.
  **/
-int __init firmware_map_add_early(resource_size_t start, resource_size_t end,
-				  const char *type)
+int __init firmware_map_add_early(u64 start, u64 end, const char *type)
 {
 	struct firmware_map_entry *entry;
 
diff --git a/drivers/gpu/drm/i915/intel_fb.c b/drivers/gpu/drm/i915/intel_fb.c
index 0ecf6b76a401..8e28e5993df5 100644
--- a/drivers/gpu/drm/i915/intel_fb.c
+++ b/drivers/gpu/drm/i915/intel_fb.c
@@ -504,6 +504,14 @@ static int intelfb_create(struct drm_device *dev, uint32_t fb_width,
 	info->fbops = &intelfb_ops;
 
 	info->fix.line_length = fb->pitch;
+
+	/* setup aperture base/size for vesafb takeover */
+	info->aperture_base = dev->mode_config.fb_base;
+	if (IS_I9XX(dev))
+		info->aperture_size = pci_resource_len(dev->pdev, 2);
+	else
+		info->aperture_size = pci_resource_len(dev->pdev, 0);
+
 	info->fix.smem_start = dev->mode_config.fb_base + obj_priv->gtt_offset;
 	info->fix.smem_len = size;
 
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index f8090e137fef..2d5016691d40 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -950,6 +950,7 @@ config SENSORS_HDAPS
 config SENSORS_LIS3LV02D
 	tristate "STMicroeletronics LIS3LV02Dx three-axis digital accelerometer"
 	depends on ACPI && INPUT
+	select INPUT_POLLDEV
 	select NEW_LEDS
 	select LEDS_CLASS
 	default n
@@ -977,6 +978,7 @@ config SENSORS_LIS3LV02D
 config SENSORS_LIS3_SPI
 	tristate "STMicroeletronics LIS3LV02Dx three-axis digital accelerometer (SPI)"
 	depends on !ACPI && SPI_MASTER && INPUT
+	select INPUT_POLLDEV
 	default n
 	help
 	  This driver provides support for the LIS3LV02Dx accelerometer connected
diff --git a/drivers/hwmon/hp_accel.c b/drivers/hwmon/hp_accel.c
index abca7e9f953b..6679854c85b0 100644
--- a/drivers/hwmon/hp_accel.c
+++ b/drivers/hwmon/hp_accel.c
@@ -27,9 +27,6 @@
 #include <linux/types.h>
 #include <linux/platform_device.h>
 #include <linux/interrupt.h>
-#include <linux/input.h>
-#include <linux/kthread.h>
-#include <linux/semaphore.h>
 #include <linux/delay.h>
 #include <linux/wait.h>
 #include <linux/poll.h>
@@ -161,6 +158,7 @@ static struct axis_conversion lis3lv02d_axis_normal = {1, 2, 3};
 static struct axis_conversion lis3lv02d_axis_y_inverted = {1, -2, 3};
 static struct axis_conversion lis3lv02d_axis_x_inverted = {-1, 2, 3};
 static struct axis_conversion lis3lv02d_axis_z_inverted = {1, 2, -3};
+static struct axis_conversion lis3lv02d_axis_xy_swap = {2, 1, 3};
 static struct axis_conversion lis3lv02d_axis_xy_rotated_left = {-2, 1, 3};
 static struct axis_conversion lis3lv02d_axis_xy_rotated_left_usd = {-2, 1, -3};
 static struct axis_conversion lis3lv02d_axis_xy_swap_inverted = {-2, -1, 3};
@@ -194,13 +192,16 @@ static struct dmi_system_id lis3lv02d_dmi_ids[] = {
 	AXIS_DMI_MATCH("NX9420", "HP Compaq nx9420", x_inverted),
 	AXIS_DMI_MATCH("NW9440", "HP Compaq nw9440", x_inverted),
 	AXIS_DMI_MATCH("NC2510", "HP Compaq 2510", y_inverted),
+	AXIS_DMI_MATCH("NC2710", "HP Compaq 2710", xy_swap),
 	AXIS_DMI_MATCH("NC8510", "HP Compaq 8510", xy_swap_inverted),
 	AXIS_DMI_MATCH("HP2133", "HP 2133", xy_rotated_left),
 	AXIS_DMI_MATCH("HP2140", "HP 2140", xy_swap_inverted),
 	AXIS_DMI_MATCH("NC653x", "HP Compaq 653", xy_rotated_left_usd),
 	AXIS_DMI_MATCH("NC673x", "HP Compaq 673", xy_rotated_left_usd),
 	AXIS_DMI_MATCH("NC651xx", "HP Compaq 651", xy_rotated_right),
-	AXIS_DMI_MATCH("NC671xx", "HP Compaq 671", xy_swap_yz_inverted),
+	AXIS_DMI_MATCH("NC6710x", "HP Compaq 6710", xy_swap_yz_inverted),
+	AXIS_DMI_MATCH("NC6715x", "HP Compaq 6715", y_inverted),
+	AXIS_DMI_MATCH("NC693xx", "HP EliteBook 693", xy_rotated_right),
 	/* Intel-based HP Pavilion dv5 */
 	AXIS_DMI_MATCH2("HPDV5_I",
 			PRODUCT_NAME, "HP Pavilion dv5",
@@ -216,7 +217,6 @@ static struct dmi_system_id lis3lv02d_dmi_ids[] = {
 	{ NULL, }
 /* Laptop models without axis info (yet):
  * "NC6910" "HP Compaq 6910"
- * HP Compaq 8710x Notebook PC / Mobile Workstation
  * "NC2400" "HP Compaq nc2400"
  * "NX74x0" "HP Compaq nx74"
  * "NX6325" "HP Compaq nx6325"
@@ -324,7 +324,7 @@ static int lis3lv02d_remove(struct acpi_device *device, int type)
 	flush_work(&hpled_led.work);
 	led_classdev_unregister(&hpled_led.led_classdev);
 
-	return lis3lv02d_remove_fs();
+	return lis3lv02d_remove_fs(&lis3_dev);
 }
 
 
@@ -338,13 +338,7 @@ static int lis3lv02d_suspend(struct acpi_device *device, pm_message_t state)
 
 static int lis3lv02d_resume(struct acpi_device *device)
 {
-	/* put back the device in the right state (ACPI might turn it on) */
-	mutex_lock(&lis3_dev.lock);
-	if (lis3_dev.usage > 0)
-		lis3lv02d_poweron(&lis3_dev);
-	else
-		lis3lv02d_poweroff(&lis3_dev);
-	mutex_unlock(&lis3_dev.lock);
+	lis3lv02d_poweron(&lis3_dev);
 	return 0;
 }
 #else
diff --git a/drivers/hwmon/lis3lv02d.c b/drivers/hwmon/lis3lv02d.c
index 778eb7795983..271338bdb6be 100644
--- a/drivers/hwmon/lis3lv02d.c
+++ b/drivers/hwmon/lis3lv02d.c
@@ -27,9 +27,7 @@
 #include <linux/types.h>
 #include <linux/platform_device.h>
 #include <linux/interrupt.h>
-#include <linux/input.h>
-#include <linux/kthread.h>
-#include <linux/semaphore.h>
+#include <linux/input-polldev.h>
 #include <linux/delay.h>
 #include <linux/wait.h>
 #include <linux/poll.h>
@@ -105,56 +103,39 @@ static void lis3lv02d_get_xyz(struct lis3lv02d *lis3, int *x, int *y, int *z)
 {
 	int position[3];
 
-	position[0] = lis3_dev.read_data(lis3, OUTX);
-	position[1] = lis3_dev.read_data(lis3, OUTY);
-	position[2] = lis3_dev.read_data(lis3, OUTZ);
+	position[0] = lis3->read_data(lis3, OUTX);
+	position[1] = lis3->read_data(lis3, OUTY);
+	position[2] = lis3->read_data(lis3, OUTZ);
 
-	*x = lis3lv02d_get_axis(lis3_dev.ac.x, position);
-	*y = lis3lv02d_get_axis(lis3_dev.ac.y, position);
-	*z = lis3lv02d_get_axis(lis3_dev.ac.z, position);
+	*x = lis3lv02d_get_axis(lis3->ac.x, position);
+	*y = lis3lv02d_get_axis(lis3->ac.y, position);
+	*z = lis3lv02d_get_axis(lis3->ac.z, position);
 }
 
 void lis3lv02d_poweroff(struct lis3lv02d *lis3)
 {
-	lis3_dev.is_on = 0;
+	/* disable X,Y,Z axis and power down */
+	lis3->write(lis3, CTRL_REG1, 0x00);
 }
 EXPORT_SYMBOL_GPL(lis3lv02d_poweroff);
 
 void lis3lv02d_poweron(struct lis3lv02d *lis3)
 {
-	lis3_dev.is_on = 1;
-	lis3_dev.init(lis3);
-}
-EXPORT_SYMBOL_GPL(lis3lv02d_poweron);
+	u8 reg;
 
-/*
- * To be called before starting to use the device. It makes sure that the
- * device will always be on until a call to lis3lv02d_decrease_use(). Not to be
- * used from interrupt context.
- */
-static void lis3lv02d_increase_use(struct lis3lv02d *dev)
-{
-	mutex_lock(&dev->lock);
-	dev->usage++;
-	if (dev->usage == 1) {
-		if (!dev->is_on)
-			lis3lv02d_poweron(dev);
-	}
-	mutex_unlock(&dev->lock);
-}
+	lis3->init(lis3);
 
-/*
- * To be called whenever a usage of the device is stopped.
- * It will make sure to turn off the device when there is not usage.
- */
-static void lis3lv02d_decrease_use(struct lis3lv02d *dev)
-{
-	mutex_lock(&dev->lock);
-	dev->usage--;
-	if (dev->usage == 0)
-		lis3lv02d_poweroff(dev);
-	mutex_unlock(&dev->lock);
+	/*
+	 * Common configuration
+	 * BDU: LSB and MSB values are not updated until both have been read.
+	 *      So the value read will always be correct.
+	 */
+	lis3->read(lis3, CTRL_REG2, &reg);
+	reg |= CTRL2_BDU;
+	lis3->write(lis3, CTRL_REG2, reg);
 }
+EXPORT_SYMBOL_GPL(lis3lv02d_poweron);
+
 
 static irqreturn_t lis302dl_interrupt(int irq, void *dummy)
 {
@@ -198,15 +179,12 @@ static int lis3lv02d_misc_open(struct inode *inode, struct file *file)
 		printk(KERN_ERR DRIVER_NAME ": IRQ%d allocation failed\n", lis3_dev.irq);
 		return -EBUSY;
 	}
-	lis3lv02d_increase_use(&lis3_dev);
-	printk("lis3: registered interrupt %d\n", lis3_dev.irq);
 	return 0;
 }
 
 static int lis3lv02d_misc_release(struct inode *inode, struct file *file)
 {
 	fasync_helper(-1, file, 0, &lis3_dev.async_queue);
-	lis3lv02d_decrease_use(&lis3_dev);
 	free_irq(lis3_dev.irq, &lis3_dev);
 	clear_bit(0, &lis3_dev.misc_opened); /* release the device */
 	return 0;
@@ -290,46 +268,16 @@ static struct miscdevice lis3lv02d_misc_device = {
 	.fops    = &lis3lv02d_misc_fops,
 };
 
-/**
- * lis3lv02d_joystick_kthread - Kthread polling function
- * @data: unused - here to conform to threadfn prototype
- */
-static int lis3lv02d_joystick_kthread(void *data)
+static void lis3lv02d_joystick_poll(struct input_polled_dev *pidev)
 {
 	int x, y, z;
 
-	while (!kthread_should_stop()) {
-		lis3lv02d_get_xyz(&lis3_dev, &x, &y, &z);
-		input_report_abs(lis3_dev.idev, ABS_X, x - lis3_dev.xcalib);
-		input_report_abs(lis3_dev.idev, ABS_Y, y - lis3_dev.ycalib);
-		input_report_abs(lis3_dev.idev, ABS_Z, z - lis3_dev.zcalib);
-
-		input_sync(lis3_dev.idev);
-
-		try_to_freeze();
-		msleep_interruptible(MDPS_POLL_INTERVAL);
-	}
-
-	return 0;
-}
-
-static int lis3lv02d_joystick_open(struct input_dev *input)
-{
-	lis3lv02d_increase_use(&lis3_dev);
-	lis3_dev.kthread = kthread_run(lis3lv02d_joystick_kthread, NULL, "klis3lv02d");
-	if (IS_ERR(lis3_dev.kthread)) {
-		lis3lv02d_decrease_use(&lis3_dev);
-		return PTR_ERR(lis3_dev.kthread);
-	}
-
-	return 0;
+	lis3lv02d_get_xyz(&lis3_dev, &x, &y, &z);
+	input_report_abs(pidev->input, ABS_X, x - lis3_dev.xcalib);
+	input_report_abs(pidev->input, ABS_Y, y - lis3_dev.ycalib);
+	input_report_abs(pidev->input, ABS_Z, z - lis3_dev.zcalib);
 }
 
-static void lis3lv02d_joystick_close(struct input_dev *input)
-{
-	kthread_stop(lis3_dev.kthread);
-	lis3lv02d_decrease_use(&lis3_dev);
-}
 
 static inline void lis3lv02d_calibrate_joystick(void)
 {
@@ -339,33 +287,36 @@ static inline void lis3lv02d_calibrate_joystick(void)
 
 int lis3lv02d_joystick_enable(void)
 {
+	struct input_dev *input_dev;
 	int err;
 
 	if (lis3_dev.idev)
 		return -EINVAL;
 
-	lis3_dev.idev = input_allocate_device();
+	lis3_dev.idev = input_allocate_polled_device();
 	if (!lis3_dev.idev)
 		return -ENOMEM;
 
+	lis3_dev.idev->poll = lis3lv02d_joystick_poll;
+	lis3_dev.idev->poll_interval = MDPS_POLL_INTERVAL;
+	input_dev = lis3_dev.idev->input;
+
 	lis3lv02d_calibrate_joystick();
 
-	lis3_dev.idev->name       = "ST LIS3LV02DL Accelerometer";
-	lis3_dev.idev->phys       = DRIVER_NAME "/input0";
-	lis3_dev.idev->id.bustype = BUS_HOST;
-	lis3_dev.idev->id.vendor  = 0;
-	lis3_dev.idev->dev.parent = &lis3_dev.pdev->dev;
-	lis3_dev.idev->open       = lis3lv02d_joystick_open;
-	lis3_dev.idev->close      = lis3lv02d_joystick_close;
+	input_dev->name       = "ST LIS3LV02DL Accelerometer";
+	input_dev->phys       = DRIVER_NAME "/input0";
+	input_dev->id.bustype = BUS_HOST;
+	input_dev->id.vendor  = 0;
+	input_dev->dev.parent = &lis3_dev.pdev->dev;
 
-	set_bit(EV_ABS, lis3_dev.idev->evbit);
-	input_set_abs_params(lis3_dev.idev, ABS_X, -lis3_dev.mdps_max_val, lis3_dev.mdps_max_val, 3, 3);
-	input_set_abs_params(lis3_dev.idev, ABS_Y, -lis3_dev.mdps_max_val, lis3_dev.mdps_max_val, 3, 3);
-	input_set_abs_params(lis3_dev.idev, ABS_Z, -lis3_dev.mdps_max_val, lis3_dev.mdps_max_val, 3, 3);
+	set_bit(EV_ABS, input_dev->evbit);
+	input_set_abs_params(input_dev, ABS_X, -lis3_dev.mdps_max_val, lis3_dev.mdps_max_val, 3, 3);
+	input_set_abs_params(input_dev, ABS_Y, -lis3_dev.mdps_max_val, lis3_dev.mdps_max_val, 3, 3);
+	input_set_abs_params(input_dev, ABS_Z, -lis3_dev.mdps_max_val, lis3_dev.mdps_max_val, 3, 3);
 
-	err = input_register_device(lis3_dev.idev);
+	err = input_register_polled_device(lis3_dev.idev);
 	if (err) {
-		input_free_device(lis3_dev.idev);
+		input_free_polled_device(lis3_dev.idev);
 		lis3_dev.idev = NULL;
 	}
 
@@ -378,8 +329,9 @@ void lis3lv02d_joystick_disable(void)
 	if (!lis3_dev.idev)
 		return;
 
-	misc_deregister(&lis3lv02d_misc_device);
-	input_unregister_device(lis3_dev.idev);
+	if (lis3_dev.irq)
+		misc_deregister(&lis3lv02d_misc_device);
+	input_unregister_polled_device(lis3_dev.idev);
 	lis3_dev.idev = NULL;
 }
 EXPORT_SYMBOL_GPL(lis3lv02d_joystick_disable);
@@ -390,9 +342,7 @@ static ssize_t lis3lv02d_position_show(struct device *dev,
 {
 	int x, y, z;
 
-	lis3lv02d_increase_use(&lis3_dev);
 	lis3lv02d_get_xyz(&lis3_dev, &x, &y, &z);
-	lis3lv02d_decrease_use(&lis3_dev);
 	return sprintf(buf, "(%d,%d,%d)\n", x, y, z);
 }
 
@@ -406,9 +356,7 @@ static ssize_t lis3lv02d_calibrate_store(struct device *dev,
 				struct device_attribute *attr,
 				const char *buf, size_t count)
 {
-	lis3lv02d_increase_use(&lis3_dev);
 	lis3lv02d_calibrate_joystick();
-	lis3lv02d_decrease_use(&lis3_dev);
 	return count;
 }
 
@@ -420,9 +368,7 @@ static ssize_t lis3lv02d_rate_show(struct device *dev,
 	u8 ctrl;
 	int val;
 
-	lis3lv02d_increase_use(&lis3_dev);
 	lis3_dev.read(&lis3_dev, CTRL_REG1, &ctrl);
-	lis3lv02d_decrease_use(&lis3_dev);
 	val = (ctrl & (CTRL1_DF0 | CTRL1_DF1)) >> 4;
 	return sprintf(buf, "%d\n", lis3lv02dl_df_val[val]);
 }
@@ -446,17 +392,17 @@ static struct attribute_group lis3lv02d_attribute_group = {
 
 static int lis3lv02d_add_fs(struct lis3lv02d *lis3)
 {
-	lis3_dev.pdev = platform_device_register_simple(DRIVER_NAME, -1, NULL, 0);
-	if (IS_ERR(lis3_dev.pdev))
-		return PTR_ERR(lis3_dev.pdev);
+	lis3->pdev = platform_device_register_simple(DRIVER_NAME, -1, NULL, 0);
+	if (IS_ERR(lis3->pdev))
+		return PTR_ERR(lis3->pdev);
 
-	return sysfs_create_group(&lis3_dev.pdev->dev.kobj, &lis3lv02d_attribute_group);
+	return sysfs_create_group(&lis3->pdev->dev.kobj, &lis3lv02d_attribute_group);
 }
 
-int lis3lv02d_remove_fs(void)
+int lis3lv02d_remove_fs(struct lis3lv02d *lis3)
 {
-	sysfs_remove_group(&lis3_dev.pdev->dev.kobj, &lis3lv02d_attribute_group);
-	platform_device_unregister(lis3_dev.pdev);
+	sysfs_remove_group(&lis3->pdev->dev.kobj, &lis3lv02d_attribute_group);
+	platform_device_unregister(lis3->pdev);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(lis3lv02d_remove_fs);
@@ -482,18 +428,35 @@ int lis3lv02d_init_device(struct lis3lv02d *dev)
 		break;
 	default:
 		printk(KERN_ERR DRIVER_NAME
-			": unknown sensor type 0x%X\n", lis3_dev.whoami);
+			": unknown sensor type 0x%X\n", dev->whoami);
 		return -EINVAL;
 	}
 
-	mutex_init(&dev->lock);
 	lis3lv02d_add_fs(dev);
-	lis3lv02d_increase_use(dev);
+	lis3lv02d_poweron(dev);
 
 	if (lis3lv02d_joystick_enable())
 		printk(KERN_ERR DRIVER_NAME ": joystick initialization failed\n");
 
-	printk("lis3_init_device: irq %d\n", dev->irq);
+	/* passing in platform specific data is purely optional and only
+	 * used by the SPI transport layer at the moment */
+	if (dev->pdata) {
+		struct lis3lv02d_platform_data *p = dev->pdata;
+
+		if (p->click_flags && (dev->whoami == LIS_SINGLE_ID)) {
+			dev->write(dev, CLICK_CFG, p->click_flags);
+			dev->write(dev, CLICK_TIMELIMIT, p->click_time_limit);
+			dev->write(dev, CLICK_LATENCY, p->click_latency);
+			dev->write(dev, CLICK_WINDOW, p->click_window);
+			dev->write(dev, CLICK_THSZ, p->click_thresh_z & 0xf);
+			dev->write(dev, CLICK_THSY_X,
+					(p->click_thresh_x & 0xf) |
+					(p->click_thresh_y << 4));
+		}
+
+		if (p->irq_cfg)
+			dev->write(dev, CTRL_REG3, p->irq_cfg);
+	}
 
 	/* bail if we did not get an IRQ from the bus layer */
 	if (!dev->irq) {
@@ -502,11 +465,9 @@ int lis3lv02d_init_device(struct lis3lv02d *dev)
 		goto out;
 	}
 
-	printk("lis3: registering device\n");
 	if (misc_register(&lis3lv02d_misc_device))
 		printk(KERN_ERR DRIVER_NAME ": misc_register failed\n");
 out:
-	lis3lv02d_decrease_use(dev);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(lis3lv02d_init_device);
diff --git a/drivers/hwmon/lis3lv02d.h b/drivers/hwmon/lis3lv02d.h
index 745ec96806d4..e320e2f511f1 100644
--- a/drivers/hwmon/lis3lv02d.h
+++ b/drivers/hwmon/lis3lv02d.h
@@ -18,6 +18,8 @@
  *  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/platform_device.h>
+#include <linux/input-polldev.h>
 
 /*
  * The actual chip is STMicroelectronics LIS3LV02DL or LIS3LV02DQ that seems to
@@ -27,12 +29,14 @@
  * They can also be connected via I²C.
  */
 
+#include <linux/lis3lv02d.h>
+
 /* 2-byte registers */
 #define LIS_DOUBLE_ID	0x3A /* LIS3LV02D[LQ] */
 /* 1-byte registers */
 #define LIS_SINGLE_ID	0x3B /* LIS[32]02DL and others */
 
-enum lis3lv02d_reg {
+enum lis3_reg {
 	WHO_AM_I	= 0x0F,
 	OFFSET_X	= 0x16,
 	OFFSET_Y	= 0x17,
@@ -60,6 +64,19 @@ enum lis3lv02d_reg {
 	FF_WU_THS_L	= 0x34,
 	FF_WU_THS_H	= 0x35,
 	FF_WU_DURATION	= 0x36,
+};
+
+enum lis302d_reg {
+	CLICK_CFG	= 0x38,
+	CLICK_SRC	= 0x39,
+	CLICK_THSY_X	= 0x3B,
+	CLICK_THSZ	= 0x3C,
+	CLICK_TIMELIMIT	= 0x3D,
+	CLICK_LATENCY	= 0x3E,
+	CLICK_WINDOW	= 0x3F,
+};
+
+enum lis3lv02d_reg {
 	DD_CFG		= 0x38,
 	DD_SRC		= 0x39,
 	DD_ACK		= 0x3A,
@@ -169,22 +186,20 @@ struct lis3lv02d {
 	s16 (*read_data) (struct lis3lv02d *lis3, int reg);
 	int			mdps_max_val;
 
-	struct input_dev	*idev;     /* input device */
-	struct task_struct	*kthread;  /* kthread for input */
-	struct mutex            lock;
+	struct input_polled_dev	*idev;     /* input device */
 	struct platform_device	*pdev;     /* platform device */
 	atomic_t		count;     /* interrupt count after last read */
 	int			xcalib;    /* calibrated null value for x */
 	int			ycalib;    /* calibrated null value for y */
 	int			zcalib;    /* calibrated null value for z */
-	unsigned char		is_on;     /* whether the device is on or off */
-	unsigned char		usage;     /* usage counter */
 	struct axis_conversion	ac;        /* hw -> logical axis */
 
 	u32			irq;       /* IRQ number */
 	struct fasync_struct	*async_queue; /* queue for the misc device */
 	wait_queue_head_t	misc_wait; /* Wait queue for the misc device */
 	unsigned long		misc_opened; /* bit0: whether the device is open */
+
+	struct lis3lv02d_platform_data *pdata;	/* for passing board config */
 };
 
 int lis3lv02d_init_device(struct lis3lv02d *lis3);
@@ -192,6 +207,6 @@ int lis3lv02d_joystick_enable(void);
 void lis3lv02d_joystick_disable(void);
 void lis3lv02d_poweroff(struct lis3lv02d *lis3);
 void lis3lv02d_poweron(struct lis3lv02d *lis3);
-int lis3lv02d_remove_fs(void);
+int lis3lv02d_remove_fs(struct lis3lv02d *lis3);
 
 extern struct lis3lv02d lis3_dev;
diff --git a/drivers/hwmon/lis3lv02d_spi.c b/drivers/hwmon/lis3lv02d_spi.c
index 07ae74b0e191..3827ff04485f 100644
--- a/drivers/hwmon/lis3lv02d_spi.c
+++ b/drivers/hwmon/lis3lv02d_spi.c
@@ -72,6 +72,7 @@ static int __devinit lis302dl_spi_probe(struct spi_device *spi)
 	lis3_dev.write = lis3_spi_write;
 	lis3_dev.irq = spi->irq;
 	lis3_dev.ac = lis3lv02d_axis_normal;
+	lis3_dev.pdata = spi->dev.platform_data;
 	spi_set_drvdata(spi, &lis3_dev);
 
 	ret = lis3lv02d_init_device(&lis3_dev);
diff --git a/drivers/input/joystick/analog.c b/drivers/input/joystick/analog.c
index 356b3a25efa2..1c0b529c06aa 100644
--- a/drivers/input/joystick/analog.c
+++ b/drivers/input/joystick/analog.c
@@ -35,7 +35,7 @@
 #include <linux/input.h>
 #include <linux/gameport.h>
 #include <linux/jiffies.h>
-#include <asm/timex.h>
+#include <linux/timex.h>
 
 #define DRIVER_DESC	"Analog joystick and gamepad driver"
 
diff --git a/drivers/input/misc/pcspkr.c b/drivers/input/misc/pcspkr.c
index d6a30cee7bc7..6d67af5387ad 100644
--- a/drivers/input/misc/pcspkr.c
+++ b/drivers/input/misc/pcspkr.c
@@ -17,6 +17,7 @@
 #include <linux/init.h>
 #include <linux/input.h>
 #include <linux/platform_device.h>
+#include <linux/timex.h>
 #include <asm/io.h>
 
 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
diff --git a/drivers/media/video/videobuf-dma-contig.c b/drivers/media/video/videobuf-dma-contig.c
index 6109fb5f34e2..0c29a019bc89 100644
--- a/drivers/media/video/videobuf-dma-contig.c
+++ b/drivers/media/video/videobuf-dma-contig.c
@@ -17,6 +17,7 @@
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/mm.h>
+#include <linux/pagemap.h>
 #include <linux/dma-mapping.h>
 #include <media/videobuf-dma-contig.h>
 
@@ -25,6 +26,7 @@ struct videobuf_dma_contig_memory {
 	void *vaddr;
 	dma_addr_t dma_handle;
 	unsigned long size;
+	int is_userptr;
 };
 
 #define MAGIC_DC_MEM 0x0733ac61
@@ -108,6 +110,82 @@ static struct vm_operations_struct videobuf_vm_ops = {
 	.close    = videobuf_vm_close,
 };
 
+/**
+ * videobuf_dma_contig_user_put() - reset pointer to user space buffer
+ * @mem: per-buffer private videobuf-dma-contig data
+ *
+ * This function resets the user space pointer
+ */
+static void videobuf_dma_contig_user_put(struct videobuf_dma_contig_memory *mem)
+{
+	mem->is_userptr = 0;
+	mem->dma_handle = 0;
+	mem->size = 0;
+}
+
+/**
+ * videobuf_dma_contig_user_get() - setup user space memory pointer
+ * @mem: per-buffer private videobuf-dma-contig data
+ * @vb: video buffer to map
+ *
+ * This function validates and sets up a pointer to user space memory.
+ * Only physically contiguous pfn-mapped memory is accepted.
+ *
+ * Returns 0 if successful.
+ */
+static int videobuf_dma_contig_user_get(struct videobuf_dma_contig_memory *mem,
+					struct videobuf_buffer *vb)
+{
+	struct mm_struct *mm = current->mm;
+	struct vm_area_struct *vma;
+	unsigned long prev_pfn, this_pfn;
+	unsigned long pages_done, user_address;
+	int ret;
+
+	mem->size = PAGE_ALIGN(vb->size);
+	mem->is_userptr = 0;
+	ret = -EINVAL;
+
+	down_read(&mm->mmap_sem);
+
+	vma = find_vma(mm, vb->baddr);
+	if (!vma)
+		goto out_up;
+
+	if ((vb->baddr + mem->size) > vma->vm_end)
+		goto out_up;
+
+	pages_done = 0;
+	prev_pfn = 0; /* kill warning */
+	user_address = vb->baddr;
+
+	while (pages_done < (mem->size >> PAGE_SHIFT)) {
+		ret = follow_pfn(vma, user_address, &this_pfn);
+		if (ret)
+			break;
+
+		if (pages_done == 0)
+			mem->dma_handle = this_pfn << PAGE_SHIFT;
+		else if (this_pfn != (prev_pfn + 1))
+			ret = -EFAULT;
+
+		if (ret)
+			break;
+
+		prev_pfn = this_pfn;
+		user_address += PAGE_SIZE;
+		pages_done++;
+	}
+
+	if (!ret)
+		mem->is_userptr = 1;
+
+ out_up:
+	up_read(&current->mm->mmap_sem);
+
+	return ret;
+}
+
 static void *__videobuf_alloc(size_t size)
 {
 	struct videobuf_dma_contig_memory *mem;
@@ -154,12 +232,11 @@ static int __videobuf_iolock(struct videobuf_queue *q,
 	case V4L2_MEMORY_USERPTR:
 		dev_dbg(q->dev, "%s memory method USERPTR\n", __func__);
 
-		/* The only USERPTR currently supported is the one needed for
-		   read() method.
-		 */
+		/* handle pointer from user space */
 		if (vb->baddr)
-			return -EINVAL;
+			return videobuf_dma_contig_user_get(mem, vb);
 
+		/* allocate memory for the read() method */
 		mem->size = PAGE_ALIGN(vb->size);
 		mem->vaddr = dma_alloc_coherent(q->dev, mem->size,
 						&mem->dma_handle, GFP_KERNEL);
@@ -400,7 +477,7 @@ void videobuf_dma_contig_free(struct videobuf_queue *q,
 	   So, it should free memory only if the memory were allocated for
 	   read() operation.
 	 */
-	if ((buf->memory != V4L2_MEMORY_USERPTR) || buf->baddr)
+	if (buf->memory != V4L2_MEMORY_USERPTR)
 		return;
 
 	if (!mem)
@@ -408,6 +485,13 @@ void videobuf_dma_contig_free(struct videobuf_queue *q,
 
 	MAGIC_CHECK(mem->magic, MAGIC_DC_MEM);
 
+	/* handle user space pointer case */
+	if (buf->baddr) {
+		videobuf_dma_contig_user_put(mem);
+		return;
+	}
+
+	/* read() method */
 	dma_free_coherent(q->dev, mem->size, mem->vaddr, mem->dma_handle);
 	mem->vaddr = NULL;
 }
diff --git a/drivers/misc/sgi-gru/grufile.c b/drivers/misc/sgi-gru/grufile.c
index bbefe77c67a9..3ce2920e2bf3 100644
--- a/drivers/misc/sgi-gru/grufile.c
+++ b/drivers/misc/sgi-gru/grufile.c
@@ -302,7 +302,7 @@ static int gru_init_tables(unsigned long gru_base_paddr, void *gru_base_vaddr)
 		pnode = uv_node_to_pnode(nid);
 		if (bid < 0 || gru_base[bid])
 			continue;
-		page = alloc_pages_node(nid, GFP_KERNEL, order);
+		page = alloc_pages_exact_node(nid, GFP_KERNEL, order);
 		if (!page)
 			goto fail;
 		gru_base[bid] = page_address(page);
diff --git a/drivers/misc/sgi-xp/xpc_uv.c b/drivers/misc/sgi-xp/xpc_uv.c
index 9172fcdee4e2..c76677afda1b 100644
--- a/drivers/misc/sgi-xp/xpc_uv.c
+++ b/drivers/misc/sgi-xp/xpc_uv.c
@@ -232,7 +232,7 @@ xpc_create_gru_mq_uv(unsigned int mq_size, int cpu, char *irq_name,
 	mq->mmr_blade = uv_cpu_to_blade_id(cpu);
 
 	nid = cpu_to_node(cpu);
-	page = alloc_pages_node(nid, GFP_KERNEL | __GFP_ZERO | GFP_THISNODE,
+	page = alloc_pages_exact_node(nid, GFP_KERNEL | __GFP_ZERO | GFP_THISNODE,
 				pg_order);
 	if (page == NULL) {
 		dev_err(xpc_part, "xpc_create_gru_mq_uv() failed to alloc %d "
diff --git a/drivers/pcmcia/pcmcia_ioctl.c b/drivers/pcmcia/pcmcia_ioctl.c
index 1703b20cad5d..6095f8daecd7 100644
--- a/drivers/pcmcia/pcmcia_ioctl.c
+++ b/drivers/pcmcia/pcmcia_ioctl.c
@@ -915,12 +915,9 @@ static int ds_ioctl(struct inode * inode, struct file * file,
 		err = -EPERM;
 		goto free_out;
 	} else {
-		static int printed = 0;
-		if (!printed) {
-			printk(KERN_WARNING "2.6. kernels use pcmciamtd instead of memory_cs.c and do not require special\n");
-			printk(KERN_WARNING "MTD handling any more.\n");
-			printed++;
-		}
+			printk_once(KERN_WARNING
+				"2.6. kernels use pcmciamtd instead of memory_cs.c and do not require special\n");
+			printk_once(KERN_WARNING "MTD handling any more.\n");
 	}
 	err = -EINVAL;
 	goto free_out;
diff --git a/drivers/spi/spi_mpc83xx.c b/drivers/spi/spi_mpc83xx.c
index f4573a96af24..a32ccb44065e 100644
--- a/drivers/spi/spi_mpc83xx.c
+++ b/drivers/spi/spi_mpc83xx.c
@@ -711,12 +711,12 @@ static int of_mpc83xx_spi_get_chipselects(struct device *dev)
 		return 0;
 	}
 
-	pinfo->gpios = kmalloc(ngpios * sizeof(pinfo->gpios), GFP_KERNEL);
+	pinfo->gpios = kmalloc(ngpios * sizeof(*pinfo->gpios), GFP_KERNEL);
 	if (!pinfo->gpios)
 		return -ENOMEM;
-	memset(pinfo->gpios, -1, ngpios * sizeof(pinfo->gpios));
+	memset(pinfo->gpios, -1, ngpios * sizeof(*pinfo->gpios));
 
-	pinfo->alow_flags = kzalloc(ngpios * sizeof(pinfo->alow_flags),
+	pinfo->alow_flags = kzalloc(ngpios * sizeof(*pinfo->alow_flags),
 				    GFP_KERNEL);
 	if (!pinfo->alow_flags) {
 		ret = -ENOMEM;
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 2b5a691064b7..932ffdbf86d9 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -2104,6 +2104,7 @@ config FB_MB862XX_LIME
 	bool "Lime GDC"
 	depends on FB_MB862XX
 	depends on OF && !FB_MB862XX_PCI_GDC
+	depends on PPC
 	select FB_FOREIGN_ENDIAN
 	select FB_LITTLE_ENDIAN
 	---help---
diff --git a/drivers/video/acornfb.c b/drivers/video/acornfb.c
index 6995fe1e86d4..0bcc59eb37fa 100644
--- a/drivers/video/acornfb.c
+++ b/drivers/video/acornfb.c
@@ -859,43 +859,6 @@ acornfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
 	return 0;
 }
 
-/*
- * Note that we are entered with the kernel locked.
- */
-static int
-acornfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
-{
-	unsigned long off, start;
-	u32 len;
-
-	off = vma->vm_pgoff << PAGE_SHIFT;
-
-	start = info->fix.smem_start;
-	len = PAGE_ALIGN(start & ~PAGE_MASK) + info->fix.smem_len;
-	start &= PAGE_MASK;
-	if ((vma->vm_end - vma->vm_start + off) > len)
-		return -EINVAL;
-	off += start;
-	vma->vm_pgoff = off >> PAGE_SHIFT;
-
-	/* This is an IO map - tell maydump to skip this VMA */
-	vma->vm_flags |= VM_IO;
-
-	vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
-
-	/*
-	 * Don't alter the page protection flags; we want to keep the area
-	 * cached for better performance.  This does mean that we may miss
-	 * some updates to the screen occasionally, but process switches
-	 * should cause the caches and buffers to be flushed often enough.
-	 */
-	if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT,
-				vma->vm_end - vma->vm_start,
-				vma->vm_page_prot))
-		return -EAGAIN;
-	return 0;
-}
-
 static struct fb_ops acornfb_ops = {
 	.owner		= THIS_MODULE,
 	.fb_check_var	= acornfb_check_var,
@@ -905,7 +868,6 @@ static struct fb_ops acornfb_ops = {
 	.fb_fillrect	= cfb_fillrect,
 	.fb_copyarea	= cfb_copyarea,
 	.fb_imageblit	= cfb_imageblit,
-	.fb_mmap	= acornfb_mmap,
 };
 
 /*
diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c
index 2fb63f6ea2f1..5afd64482f55 100644
--- a/drivers/video/atmel_lcdfb.c
+++ b/drivers/video/atmel_lcdfb.c
@@ -345,7 +345,7 @@ static int atmel_lcdfb_check_var(struct fb_var_screeninfo *var,
 	dev_dbg(dev, "  bpp:        %u\n", var->bits_per_pixel);
 	dev_dbg(dev, "  clk:        %lu KHz\n", clk_value_khz);
 
-	if ((PICOS2KHZ(var->pixclock) * var->bits_per_pixel / 8) > clk_value_khz) {
+	if (PICOS2KHZ(var->pixclock) > clk_value_khz) {
 		dev_err(dev, "%lu KHz pixel clock is too fast\n", PICOS2KHZ(var->pixclock));
 		return -EINVAL;
 	}
diff --git a/drivers/video/aty/radeon_pm.c b/drivers/video/aty/radeon_pm.c
index 97a1f095f327..515cf1978d19 100644
--- a/drivers/video/aty/radeon_pm.c
+++ b/drivers/video/aty/radeon_pm.c
@@ -213,7 +213,6 @@ static void radeon_pm_disable_dynamic_mode(struct radeonfb_info *rinfo)
 			 PIXCLKS_CNTL__R300_PIXCLK_TRANS_ALWAYS_ONb	|
 			 PIXCLKS_CNTL__R300_PIXCLK_TVO_ALWAYS_ONb	|
 			 PIXCLKS_CNTL__R300_P2G2CLK_ALWAYS_ONb		|
-			 PIXCLKS_CNTL__R300_P2G2CLK_ALWAYS_ONb		|
 			 PIXCLKS_CNTL__R300_DISP_DAC_PIXCLK_DAC2_BLANK_OFF);
                 OUTPLL(pllPIXCLKS_CNTL, tmp);
 
@@ -395,7 +394,7 @@ static void radeon_pm_enable_dynamic_mode(struct radeonfb_info *rinfo)
 			PIXCLKS_CNTL__R300_PIXCLK_TRANS_ALWAYS_ONb      |
 			PIXCLKS_CNTL__R300_PIXCLK_TVO_ALWAYS_ONb        |
 			PIXCLKS_CNTL__R300_P2G2CLK_ALWAYS_ONb           |
-			PIXCLKS_CNTL__R300_P2G2CLK_ALWAYS_ONb);
+			PIXCLKS_CNTL__R300_P2G2CLK_DAC_ALWAYS_ONb);
 		OUTPLL(pllPIXCLKS_CNTL, tmp);
 
 		tmp = INPLL(pllMCLK_MISC);
diff --git a/drivers/video/bf54x-lq043fb.c b/drivers/video/bf54x-lq043fb.c
index 37e60b1d2ed9..e49ae5edcc00 100644
--- a/drivers/video/bf54x-lq043fb.c
+++ b/drivers/video/bf54x-lq043fb.c
@@ -323,7 +323,6 @@ static int bfin_bf54x_fb_release(struct fb_info *info, int user)
 		bfin_write_EPPI0_CONTROL(0);
 		SSYNC();
 		disable_dma(CH_EPPI0);
-		memset(fbi->fb_buffer, 0, info->fix.smem_len);
 	}
 
 	spin_unlock(&fbi->lock);
@@ -530,7 +529,7 @@ static irqreturn_t bfin_bf54x_irq_error(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static int __init bfin_bf54x_probe(struct platform_device *pdev)
+static int __devinit bfin_bf54x_probe(struct platform_device *pdev)
 {
 	struct bfin_bf54xfb_info *info;
 	struct fb_info *fbinfo;
@@ -626,14 +625,12 @@ static int __init bfin_bf54x_probe(struct platform_device *pdev)
 		goto out3;
 	}
 
-	memset(info->fb_buffer, 0, fbinfo->fix.smem_len);
-
 	fbinfo->screen_base = (void *)info->fb_buffer;
 	fbinfo->fix.smem_start = (int)info->fb_buffer;
 
 	fbinfo->fbops = &bfin_bf54x_fb_ops;
 
-	fbinfo->pseudo_palette = kmalloc(sizeof(u32) * 16, GFP_KERNEL);
+	fbinfo->pseudo_palette = kzalloc(sizeof(u32) * 16, GFP_KERNEL);
 	if (!fbinfo->pseudo_palette) {
 		printk(KERN_ERR DRIVER_NAME
 		       "Fail to allocate pseudo_palette\n");
@@ -642,8 +639,6 @@ static int __init bfin_bf54x_probe(struct platform_device *pdev)
 		goto out4;
 	}
 
-	memset(fbinfo->pseudo_palette, 0, sizeof(u32) * 16);
-
 	if (fb_alloc_cmap(&fbinfo->cmap, BFIN_LCD_NBR_PALETTE_ENTRIES, 0)
 	    < 0) {
 		printk(KERN_ERR DRIVER_NAME
@@ -712,7 +707,7 @@ out1:
 	return ret;
 }
 
-static int bfin_bf54x_remove(struct platform_device *pdev)
+static int __devexit bfin_bf54x_remove(struct platform_device *pdev)
 {
 
 	struct fb_info *fbinfo = platform_get_drvdata(pdev);
@@ -781,7 +776,7 @@ static int bfin_bf54x_resume(struct platform_device *pdev)
 
 static struct platform_driver bfin_bf54x_driver = {
 	.probe = bfin_bf54x_probe,
-	.remove = bfin_bf54x_remove,
+	.remove = __devexit_p(bfin_bf54x_remove),
 	.suspend = bfin_bf54x_suspend,
 	.resume = bfin_bf54x_resume,
 	.driver = {
@@ -790,7 +785,7 @@ static struct platform_driver bfin_bf54x_driver = {
 		   },
 };
 
-static int __devinit bfin_bf54x_driver_init(void)
+static int __init bfin_bf54x_driver_init(void)
 {
 	return platform_driver_register(&bfin_bf54x_driver);
 }
diff --git a/drivers/video/bfin-t350mcqb-fb.c b/drivers/video/bfin-t350mcqb-fb.c
index 90cfddabf1f7..5cc36cfbf07b 100644
--- a/drivers/video/bfin-t350mcqb-fb.c
+++ b/drivers/video/bfin-t350mcqb-fb.c
@@ -242,7 +242,6 @@ static int bfin_t350mcqb_fb_release(struct fb_info *info, int user)
 		SSYNC();
 		disable_dma(CH_PPI);
 		bfin_t350mcqb_stop_timers();
-		memset(fbi->fb_buffer, 0, info->fix.smem_len);
 	}
 
 	spin_unlock(&fbi->lock);
@@ -527,8 +526,6 @@ static int __devinit bfin_t350mcqb_probe(struct platform_device *pdev)
 		goto out3;
 	}
 
-	memset(info->fb_buffer, 0, fbinfo->fix.smem_len);
-
 	fbinfo->screen_base = (void *)info->fb_buffer + ACTIVE_VIDEO_MEM_OFFSET;
 	fbinfo->fix.smem_start = (int)info->fb_buffer + ACTIVE_VIDEO_MEM_OFFSET;
 
@@ -602,7 +599,7 @@ out1:
 	return ret;
 }
 
-static int bfin_t350mcqb_remove(struct platform_device *pdev)
+static int __devexit bfin_t350mcqb_remove(struct platform_device *pdev)
 {
 
 	struct fb_info *fbinfo = platform_get_drvdata(pdev);
@@ -637,9 +634,6 @@ static int bfin_t350mcqb_remove(struct platform_device *pdev)
 #ifdef CONFIG_PM
 static int bfin_t350mcqb_suspend(struct platform_device *pdev, pm_message_t state)
 {
-	struct fb_info *fbinfo = platform_get_drvdata(pdev);
-	struct bfin_t350mcqbfb_info *info = fbinfo->par;
-
 	bfin_t350mcqb_disable_ppi();
 	disable_dma(CH_PPI);
 	bfin_write_PPI_STATUS(0xFFFF);
@@ -649,9 +643,6 @@ static int bfin_t350mcqb_suspend(struct platform_device *pdev, pm_message_t stat
 
 static int bfin_t350mcqb_resume(struct platform_device *pdev)
 {
-	struct fb_info *fbinfo = platform_get_drvdata(pdev);
-	struct bfin_t350mcqbfb_info *info = fbinfo->par;
-
 	enable_dma(CH_PPI);
 	bfin_t350mcqb_enable_ppi();
 
@@ -664,7 +655,7 @@ static int bfin_t350mcqb_resume(struct platform_device *pdev)
 
 static struct platform_driver bfin_t350mcqb_driver = {
 	.probe = bfin_t350mcqb_probe,
-	.remove = bfin_t350mcqb_remove,
+	.remove = __devexit_p(bfin_t350mcqb_remove),
 	.suspend = bfin_t350mcqb_suspend,
 	.resume = bfin_t350mcqb_resume,
 	.driver = {
@@ -673,7 +664,7 @@ static struct platform_driver bfin_t350mcqb_driver = {
 		   },
 };
 
-static int __devinit bfin_t350mcqb_driver_init(void)
+static int __init bfin_t350mcqb_driver_init(void)
 {
 	return platform_driver_register(&bfin_t350mcqb_driver);
 }
diff --git a/drivers/video/carminefb.c b/drivers/video/carminefb.c
index c7ff3c1a266a..0c02f8ec4bf3 100644
--- a/drivers/video/carminefb.c
+++ b/drivers/video/carminefb.c
@@ -562,7 +562,7 @@ static int __devinit alloc_carmine_fb(void __iomem *regs, void __iomem *smem_bas
 	if (ret < 0)
 		goto err_free_fb;
 
-	if (fb_mode > ARRAY_SIZE(carmine_modedb))
+	if (fb_mode >= ARRAY_SIZE(carmine_modedb))
 		fb_mode = CARMINEFB_DEFAULT_VIDEO_MODE;
 
 	par->cur_mode = par->new_mode = ~0;
diff --git a/drivers/video/chipsfb.c b/drivers/video/chipsfb.c
index 777389c40988..57b9d276497e 100644
--- a/drivers/video/chipsfb.c
+++ b/drivers/video/chipsfb.c
@@ -414,7 +414,6 @@ chipsfb_pci_init(struct pci_dev *dp, const struct pci_device_id *ent)
 	}
 
 	pci_set_drvdata(dp, p);
-	p->device = &dp->dev;
 
 	init_chips(p, addr);
 
diff --git a/drivers/video/efifb.c b/drivers/video/efifb.c
index 8dea2bc92705..eb12182b2059 100644
--- a/drivers/video/efifb.c
+++ b/drivers/video/efifb.c
@@ -280,6 +280,9 @@ static int __init efifb_probe(struct platform_device *dev)
 	info->pseudo_palette = info->par;
 	info->par = NULL;
 
+	info->aperture_base = efifb_fix.smem_start;
+	info->aperture_size = size_total;
+
 	info->screen_base = ioremap(efifb_fix.smem_start, efifb_fix.smem_len);
 	if (!info->screen_base) {
 		printk(KERN_ERR "efifb: abort, cannot ioremap video memory "
@@ -337,7 +340,7 @@ static int __init efifb_probe(struct platform_device *dev)
 	info->fbops = &efifb_ops;
 	info->var = efifb_defined;
 	info->fix = efifb_fix;
-	info->flags = FBINFO_FLAG_DEFAULT;
+	info->flags = FBINFO_FLAG_DEFAULT | FBINFO_MISC_FIRMWARE;
 
 	if ((err = fb_alloc_cmap(&info->cmap, 256, 0)) < 0) {
 		printk(KERN_ERR "efifb: cannot allocate colormap\n");
diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
index d412a1ddc12f..f8a09bf8d0cd 100644
--- a/drivers/video/fbmem.c
+++ b/drivers/video/fbmem.c
@@ -1462,6 +1462,16 @@ static int fb_check_foreignness(struct fb_info *fi)
 	return 0;
 }
 
+static bool fb_do_apertures_overlap(struct fb_info *gen, struct fb_info *hw)
+{
+	/* is the generic aperture base the same as the HW one */
+	if (gen->aperture_base == hw->aperture_base)
+		return true;
+	/* is the generic aperture base inside the hw base->hw base+size */
+	if (gen->aperture_base > hw->aperture_base && gen->aperture_base <= hw->aperture_base + hw->aperture_size)
+		return true;
+	return false;
+}
 /**
  *	register_framebuffer - registers a frame buffer device
  *	@fb_info: frame buffer info structure
@@ -1485,6 +1495,23 @@ register_framebuffer(struct fb_info *fb_info)
 	if (fb_check_foreignness(fb_info))
 		return -ENOSYS;
 
+	/* check all firmware fbs and kick off if the base addr overlaps */
+	for (i = 0 ; i < FB_MAX; i++) {
+		if (!registered_fb[i])
+			continue;
+
+		if (registered_fb[i]->flags & FBINFO_MISC_FIRMWARE) {
+			if (fb_do_apertures_overlap(registered_fb[i], fb_info)) {
+				printk(KERN_ERR "fb: conflicting fb hw usage "
+				       "%s vs %s - removing generic driver\n",
+				       fb_info->fix.id,
+				       registered_fb[i]->fix.id);
+				unregister_framebuffer(registered_fb[i]);
+				break;
+			}
+		}
+	}
+
 	num_registered_fb++;
 	for (i = 0 ; i < FB_MAX; i++)
 		if (!registered_fb[i])
@@ -1586,6 +1613,10 @@ unregister_framebuffer(struct fb_info *fb_info)
 	device_destroy(fb_class, MKDEV(FB_MAJOR, i));
 	event.info = fb_info;
 	fb_notifier_call_chain(FB_EVENT_FB_UNREGISTERED, &event);
+
+	/* this may free fb info */
+	if (fb_info->fbops->fb_destroy)
+		fb_info->fbops->fb_destroy(fb_info);
 done:
 	return ret;
 }
diff --git a/drivers/video/igafb.c b/drivers/video/igafb.c
index 3a81060137a2..15d200109446 100644
--- a/drivers/video/igafb.c
+++ b/drivers/video/igafb.c
@@ -395,17 +395,16 @@ int __init igafb_init(void)
 	/* We leak a reference here but as it cannot be unloaded this is
 	   fine. If you write unload code remember to free it in unload */
 	
-	size = sizeof(struct fb_info) + sizeof(struct iga_par) + sizeof(u32)*16;
+	size = sizeof(struct iga_par) + sizeof(u32)*16;
 
-        info = kzalloc(size, GFP_ATOMIC);
+	info = framebuffer_alloc(size, &pdev->dev);
         if (!info) {
                 printk("igafb_init: can't alloc fb_info\n");
 		 pci_dev_put(pdev);
                 return -ENOMEM;
         }
 
-	par = (struct iga_par *) (info + 1);
-	
+	par = info->par;
 
 	if ((addr = pdev->resource[0].start) == 0) {
                 printk("igafb_init: no memory start\n");
@@ -526,7 +525,6 @@ int __init igafb_init(void)
 	info->var = default_var;
 	info->fix = igafb_fix;
 	info->pseudo_palette = (void *)(par + 1);
-	info->device = &pdev->dev;
 
 	if (!iga_init(info, par)) {
 		iounmap((void *)par->io_base);
diff --git a/drivers/video/intelfb/intelfbdrv.c b/drivers/video/intelfb/intelfbdrv.c
index ace14fe02fc4..0cafd642fbc0 100644
--- a/drivers/video/intelfb/intelfbdrv.c
+++ b/drivers/video/intelfb/intelfbdrv.c
@@ -1365,6 +1365,11 @@ static int intelfb_set_par(struct fb_info *info)
 	DBG_MSG("intelfb_set_par (%dx%d-%d)\n", info->var.xres,
 		info->var.yres, info->var.bits_per_pixel);
 
+	/*
+	 * Disable VCO prior to timing register change.
+	 */
+	OUTREG(DPLL_A, INREG(DPLL_A) & ~DPLL_VCO_ENABLE);
+
 	intelfb_blank(FB_BLANK_POWERDOWN, info);
 
 	if (ACCEL(dinfo, info))
diff --git a/drivers/video/logo/Makefile b/drivers/video/logo/Makefile
index b91251d1fe41..3b437813584c 100644
--- a/drivers/video/logo/Makefile
+++ b/drivers/video/logo/Makefile
@@ -37,22 +37,24 @@ extra-y += $(call logo-cfiles,_clut224,ppm)
 # Gray 256
 extra-y += $(call logo-cfiles,_gray256,pgm)
 
+pnmtologo := scripts/pnmtologo
+
 # Create commands like "pnmtologo -t mono -n logo_mac_mono -o ..."
 quiet_cmd_logo = LOGO    $@
-	cmd_logo = scripts/pnmtologo \
+	cmd_logo = $(pnmtologo) \
 			-t $(patsubst $*_%,%,$(notdir $(basename $<))) \
 			-n $(notdir $(basename $<)) -o $@ $<
 
-$(obj)/%_mono.c: $(src)/%_mono.pbm FORCE
+$(obj)/%_mono.c: $(src)/%_mono.pbm $(pnmtologo) FORCE
 	$(call if_changed,logo)
 
-$(obj)/%_vga16.c: $(src)/%_vga16.ppm FORCE
+$(obj)/%_vga16.c: $(src)/%_vga16.ppm $(pnmtologo) FORCE
 	$(call if_changed,logo)
 
-$(obj)/%_clut224.c: $(src)/%_clut224.ppm FORCE
+$(obj)/%_clut224.c: $(src)/%_clut224.ppm $(pnmtologo) FORCE
 	$(call if_changed,logo)
 
-$(obj)/%_gray256.c: $(src)/%_gray256.pgm FORCE
+$(obj)/%_gray256.c: $(src)/%_gray256.pgm $(pnmtologo) FORCE
 	$(call if_changed,logo)
 
 # Files generated that shall be removed upon make clean
diff --git a/drivers/video/logo/logo.c b/drivers/video/logo/logo.c
index 2e85a2b52d05..ea7a8ccc830c 100644
--- a/drivers/video/logo/logo.c
+++ b/drivers/video/logo/logo.c
@@ -21,21 +21,6 @@
 #include <asm/bootinfo.h>
 #endif
 
-extern const struct linux_logo logo_linux_mono;
-extern const struct linux_logo logo_linux_vga16;
-extern const struct linux_logo logo_linux_clut224;
-extern const struct linux_logo logo_blackfin_vga16;
-extern const struct linux_logo logo_blackfin_clut224;
-extern const struct linux_logo logo_dec_clut224;
-extern const struct linux_logo logo_mac_clut224;
-extern const struct linux_logo logo_parisc_clut224;
-extern const struct linux_logo logo_sgi_clut224;
-extern const struct linux_logo logo_sun_clut224;
-extern const struct linux_logo logo_superh_mono;
-extern const struct linux_logo logo_superh_vga16;
-extern const struct linux_logo logo_superh_clut224;
-extern const struct linux_logo logo_m32r_clut224;
-
 static int nologo;
 module_param(nologo, bool, 0);
 MODULE_PARM_DESC(nologo, "Disables startup logo");
diff --git a/drivers/video/mb862xx/mb862xxfb.c b/drivers/video/mb862xx/mb862xxfb.c
index fb64234a3825..a28e3cfbbf70 100644
--- a/drivers/video/mb862xx/mb862xxfb.c
+++ b/drivers/video/mb862xx/mb862xxfb.c
@@ -19,7 +19,7 @@
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/pci.h>
-#if defined(CONFIG_PPC_OF)
+#if defined(CONFIG_OF)
 #include <linux/of_platform.h>
 #endif
 #include "mb862xxfb.h"
diff --git a/drivers/video/modedb.c b/drivers/video/modedb.c
index 16186240c5f2..34e4e7995169 100644
--- a/drivers/video/modedb.c
+++ b/drivers/video/modedb.c
@@ -264,6 +264,14 @@ static const struct fb_videomode modedb[] = {
 	/* 1280x800, 60 Hz, 47.403 kHz hsync, WXGA 16:10 aspect ratio */
 	NULL, 60, 1280, 800, 12048, 200, 64, 24, 1, 136, 3,
 	0, FB_VMODE_NONINTERLACED
+    }, {
+       /* 720x576i @ 50 Hz, 15.625 kHz hsync (PAL RGB) */
+       NULL, 50, 720, 576, 74074, 64, 16, 39, 5, 64, 5,
+       0, FB_VMODE_INTERLACED
+    }, {
+       /* 800x520i @ 50 Hz, 15.625 kHz hsync (PAL RGB) */
+       NULL, 50, 800, 520, 58823, 144, 64, 72, 28, 80, 5,
+       0, FB_VMODE_INTERLACED
     },
 };
 
diff --git a/drivers/video/offb.c b/drivers/video/offb.c
index e1d9eeb1aeaf..4d8c54c23dd7 100644
--- a/drivers/video/offb.c
+++ b/drivers/video/offb.c
@@ -378,7 +378,6 @@ static void __init offb_init_fb(const char *name, const char *full_name,
 	struct fb_fix_screeninfo *fix;
 	struct fb_var_screeninfo *var;
 	struct fb_info *info;
-	int size;
 
 	if (!request_mem_region(res_start, res_size, "offb"))
 		return;
@@ -393,15 +392,12 @@ static void __init offb_init_fb(const char *name, const char *full_name,
 		return;
 	}
 
-	size = sizeof(struct fb_info) + sizeof(u32) * 16;
-
-	info = kmalloc(size, GFP_ATOMIC);
+	info = framebuffer_alloc(sizeof(u32) * 16, NULL);
 	
 	if (info == 0) {
 		release_mem_region(res_start, res_size);
 		return;
 	}
-	memset(info, 0, size);
 
 	fix = &info->fix;
 	var = &info->var;
@@ -497,7 +493,7 @@ static void __init offb_init_fb(const char *name, const char *full_name,
 		iounmap(par->cmap_adr);
 		par->cmap_adr = NULL;
 		iounmap(info->screen_base);
-		kfree(info);
+		framebuffer_release(info);
 		release_mem_region(res_start, res_size);
 		return;
 	}
diff --git a/drivers/video/pm2fb.c b/drivers/video/pm2fb.c
index c6dd924976a4..36436ee6c1a4 100644
--- a/drivers/video/pm2fb.c
+++ b/drivers/video/pm2fb.c
@@ -1748,7 +1748,7 @@ static void __devexit pm2fb_remove(struct pci_dev *pdev)
 	pci_set_drvdata(pdev, NULL);
 	fb_dealloc_cmap(&info->cmap);
 	kfree(info->pixmap.addr);
-	kfree(info);
+	framebuffer_release(info);
 }
 
 static struct pci_device_id pm2fb_id_table[] = {
diff --git a/drivers/video/s1d13xxxfb.c b/drivers/video/s1d13xxxfb.c
index 0726aecf3b7e..0deb0a8867b7 100644
--- a/drivers/video/s1d13xxxfb.c
+++ b/drivers/video/s1d13xxxfb.c
@@ -2,6 +2,7 @@
  *
  * (c) 2004 Simtec Electronics
  * (c) 2005 Thibaut VARENE <varenet@parisc-linux.org>
+ * (c) 2009 Kristoffer Ericson <kristoffer.ericson@gmail.com>
  *
  * Driver for Epson S1D13xxx series framebuffer chips
  *
@@ -10,18 +11,10 @@
  *  linux/drivers/video/epson1355fb.c
  *  linux/drivers/video/epson/s1d13xxxfb.c (2.4 driver by Epson)
  *
- * Note, currently only tested on S1D13806 with 16bit CRT.
- * As such, this driver might still contain some hardcoded bits relating to
- * S1D13806.
- * Making it work on other S1D13XXX chips should merely be a matter of adding
- * a few switch()s, some missing glue here and there maybe, and split header
- * files.
- *
  * TODO: - handle dual screen display (CRT and LCD at the same time).
  *	 - check_var(), mode change, etc.
- *	 - PM untested.
- *	 - Accelerated interfaces.
- *	 - Probably not SMP safe :)
+ *	 - probably not SMP safe :)
+ *       - support all bitblt operations on all cards
  *
  * 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
@@ -31,19 +24,24 @@
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/delay.h>
-
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/mm.h>
 #include <linux/mman.h>
 #include <linux/fb.h>
+#include <linux/spinlock_types.h>
+#include <linux/spinlock.h>
 
 #include <asm/io.h>
 
 #include <video/s1d13xxxfb.h>
 
-#define PFX "s1d13xxxfb: "
+#define PFX	"s1d13xxxfb: "
+#define BLIT	"s1d13xxxfb_bitblt: "
 
+/*
+ * set this to enable debugging on general functions
+ */
 #if 0
 #define dbg(fmt, args...) do { printk(KERN_INFO fmt, ## args); } while(0)
 #else
@@ -51,7 +49,21 @@
 #endif
 
 /*
- * List of card production ids
+ * set this to enable debugging on 2D acceleration
+ */
+#if 0
+#define dbg_blit(fmt, args...) do { printk(KERN_INFO BLIT fmt, ## args); } while (0)
+#else
+#define dbg_blit(fmt, args...) do { } while (0)
+#endif
+
+/*
+ * we make sure only one bitblt operation is running
+ */
+static DEFINE_SPINLOCK(s1d13xxxfb_bitblt_lock);
+
+/*
+ * list of card production ids
  */
 static const int s1d13xxxfb_prod_ids[] = {
 	S1D13505_PROD_ID,
@@ -69,7 +81,7 @@ static const char *s1d13xxxfb_prod_names[] = {
 };
 
 /*
- * Here we define the default struct fb_fix_screeninfo
+ * here we define the default struct fb_fix_screeninfo
  */
 static struct fb_fix_screeninfo __devinitdata s1d13xxxfb_fix = {
 	.id		= S1D_FBID,
@@ -145,8 +157,10 @@ crt_enable(struct s1d13xxxfb_par *par, int enable)
 	s1d13xxxfb_writereg(par, S1DREG_COM_DISP_MODE, mode);
 }
 
-/* framebuffer control routines */
 
+/*************************************************************
+ framebuffer control functions
+ *************************************************************/
 static inline void
 s1d13xxxfb_setup_pseudocolour(struct fb_info *info)
 {
@@ -242,13 +256,13 @@ s1d13xxxfb_set_par(struct fb_info *info)
 }
 
 /**
- *  	s1d13xxxfb_setcolreg - sets a color register.
- *      @regno: Which register in the CLUT we are programming
- *      @red: The red value which can be up to 16 bits wide
+ *	s1d13xxxfb_setcolreg - sets a color register.
+ *	@regno: Which register in the CLUT we are programming
+ *	@red: The red value which can be up to 16 bits wide
  *	@green: The green value which can be up to 16 bits wide
  *	@blue:  The blue value which can be up to 16 bits wide.
  *	@transp: If supported the alpha value which can be up to 16 bits wide.
- *      @info: frame buffer info structure
+ *	@info: frame buffer info structure
  *
  *	Returns negative errno on error, or zero on success.
  */
@@ -351,15 +365,15 @@ s1d13xxxfb_blank(int blank_mode, struct fb_info *info)
 }
 
 /**
- *      s1d13xxxfb_pan_display - Pans the display.
- *      @var: frame buffer variable screen structure
- *      @info: frame buffer structure that represents a single frame buffer
+ *	s1d13xxxfb_pan_display - Pans the display.
+ *	@var: frame buffer variable screen structure
+ *	@info: frame buffer structure that represents a single frame buffer
  *
  *	Pan (or wrap, depending on the `vmode' field) the display using the
- *  	`yoffset' field of the `var' structure (`xoffset'  not yet supported).
- *  	If the values don't fit, return -EINVAL.
+ *	`yoffset' field of the `var' structure (`xoffset'  not yet supported).
+ *	If the values don't fit, return -EINVAL.
  *
- *      Returns negative errno on error, or zero on success.
+ *	Returns negative errno on error, or zero on success.
  */
 static int
 s1d13xxxfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
@@ -390,8 +404,259 @@ s1d13xxxfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
 	return 0;
 }
 
-/* framebuffer information structures */
+/************************************************************
+ functions to handle bitblt acceleration
+ ************************************************************/
+
+/**
+ *	bltbit_wait_bitset - waits for change in register value
+ *	@info : framebuffer structure
+ *	@bit  : value expected in register
+ *	@timeout : ...
+ *
+ *	waits until value changes INTO bit
+ */
+static u8
+bltbit_wait_bitset(struct fb_info *info, u8 bit, int timeout)
+{
+	while (!(s1d13xxxfb_readreg(info->par, S1DREG_BBLT_CTL0) & bit)) {
+		udelay(10);
+		if (!--timeout) {
+			dbg_blit("wait_bitset timeout\n");
+			break;
+		}
+	}
+
+	return timeout;
+}
+
+/**
+ *	bltbit_wait_bitclear - waits for change in register value
+ *	@info : frambuffer structure
+ *	@bit  : value currently in register
+ *	@timeout : ...
+ *
+ *	waits until value changes FROM bit
+ *
+ */
+static u8
+bltbit_wait_bitclear(struct fb_info *info, u8 bit, int timeout)
+{
+	while (s1d13xxxfb_readreg(info->par, S1DREG_BBLT_CTL0) & bit) {
+		udelay(10);
+		if (!--timeout) {
+			dbg_blit("wait_bitclear timeout\n");
+			break;
+		}
+	}
+
+	return timeout;
+}
+
+/**
+ *	bltbit_fifo_status - checks the current status of the fifo
+ *	@info : framebuffer structure
+ *
+ *	returns number of free words in buffer
+ */
+static u8
+bltbit_fifo_status(struct fb_info *info)
+{
+	u8 status;
 
+	status = s1d13xxxfb_readreg(info->par, S1DREG_BBLT_CTL0);
+
+	/* its empty so room for 16 words */
+	if (status & BBLT_FIFO_EMPTY)
+		return 16;
+
+	/* its full so we dont want to add */
+	if (status & BBLT_FIFO_FULL)
+		return 0;
+
+	/* its atleast half full but we can add one atleast */
+	if (status & BBLT_FIFO_NOT_FULL)
+		return 1;
+
+	return 0;
+}
+
+/*
+ *	s1d13xxxfb_bitblt_copyarea - accelerated copyarea function
+ *	@info : framebuffer structure
+ *	@area : fb_copyarea structure
+ *
+ *	supports (atleast) S1D13506
+ *
+ */
+static void
+s1d13xxxfb_bitblt_copyarea(struct fb_info *info, const struct fb_copyarea *area)
+{
+	u32 dst, src;
+	u32 stride;
+	u16 reverse = 0;
+	u16 sx = area->sx, sy = area->sy;
+	u16 dx = area->dx, dy = area->dy;
+	u16 width = area->width, height = area->height;
+	u16 bpp;
+
+	spin_lock(&s1d13xxxfb_bitblt_lock);
+
+	/* bytes per xres line */
+	bpp = (info->var.bits_per_pixel >> 3);
+	stride = bpp * info->var.xres;
+
+	/* reverse, calculate the last pixel in rectangle */
+	if ((dy > sy) || ((dy == sy) && (dx >= sx))) {
+		dst = (((dy + height - 1) * stride) + (bpp * (dx + width - 1)));
+		src = (((sy + height - 1) * stride) + (bpp * (sx + width - 1)));
+		reverse = 1;
+	/* not reverse, calculate the first pixel in rectangle */
+	} else { /* (y * xres) + (bpp * x) */
+		dst = (dy * stride) + (bpp * dx);
+		src = (sy * stride) + (bpp * sx);
+	}
+
+	/* set source adress */
+	s1d13xxxfb_writereg(info->par, S1DREG_BBLT_SRC_START0, (src & 0xff));
+	s1d13xxxfb_writereg(info->par, S1DREG_BBLT_SRC_START1, (src >> 8) & 0x00ff);
+	s1d13xxxfb_writereg(info->par, S1DREG_BBLT_SRC_START2, (src >> 16) & 0x00ff);
+
+	/* set destination adress */
+	s1d13xxxfb_writereg(info->par, S1DREG_BBLT_DST_START0, (dst & 0xff));
+	s1d13xxxfb_writereg(info->par, S1DREG_BBLT_DST_START1, (dst >> 8) & 0x00ff);
+	s1d13xxxfb_writereg(info->par, S1DREG_BBLT_DST_START2, (dst >> 16) & 0x00ff);
+
+	/* program height and width */
+	s1d13xxxfb_writereg(info->par, S1DREG_BBLT_WIDTH0, (width & 0xff) - 1);
+	s1d13xxxfb_writereg(info->par, S1DREG_BBLT_WIDTH1, (width >> 8));
+
+	s1d13xxxfb_writereg(info->par, S1DREG_BBLT_HEIGHT0, (height & 0xff) - 1);
+	s1d13xxxfb_writereg(info->par, S1DREG_BBLT_HEIGHT1, (height >> 8));
+
+	/* negative direction ROP */
+	if (reverse == 1) {
+		dbg_blit("(copyarea) negative rop\n");
+		s1d13xxxfb_writereg(info->par, S1DREG_BBLT_OP, 0x03);
+	} else /* positive direction ROP */ {
+		s1d13xxxfb_writereg(info->par, S1DREG_BBLT_OP, 0x02);
+		dbg_blit("(copyarea) positive rop\n");
+	}
+
+	/* set for rectangel mode and not linear */
+	s1d13xxxfb_writereg(info->par, S1DREG_BBLT_CTL0, 0x0);
+
+	/* setup the bpp 1 = 16bpp, 0 = 8bpp*/
+	s1d13xxxfb_writereg(info->par, S1DREG_BBLT_CTL1, (bpp >> 1));
+
+	/* set words per xres */
+	s1d13xxxfb_writereg(info->par, S1DREG_BBLT_MEM_OFF0, (stride >> 1) & 0xff);
+	s1d13xxxfb_writereg(info->par, S1DREG_BBLT_MEM_OFF1, (stride >> 9));
+
+	dbg_blit("(copyarea) dx=%d, dy=%d\n", dx, dy);
+	dbg_blit("(copyarea) sx=%d, sy=%d\n", sx, sy);
+	dbg_blit("(copyarea) width=%d, height=%d\n", width - 1, height - 1);
+	dbg_blit("(copyarea) stride=%d\n", stride);
+	dbg_blit("(copyarea) bpp=%d=0x0%d, mem_offset1=%d, mem_offset2=%d\n", bpp, (bpp >> 1),
+		(stride >> 1) & 0xff, stride >> 9);
+
+	s1d13xxxfb_writereg(info->par, S1DREG_BBLT_CC_EXP, 0x0c);
+
+	/* initialize the engine */
+	s1d13xxxfb_writereg(info->par, S1DREG_BBLT_CTL0, 0x80);
+
+	/* wait to complete */
+	bltbit_wait_bitclear(info, 0x80, 8000);
+
+	spin_unlock(&s1d13xxxfb_bitblt_lock);
+}
+
+/**
+ *
+ *	s1d13xxxfb_bitblt_solidfill - accelerated solidfill function
+ *	@info : framebuffer structure
+ *	@rect : fb_fillrect structure
+ *
+ *	supports (atleast 13506)
+ *
+ **/
+static void
+s1d13xxxfb_bitblt_solidfill(struct fb_info *info, const struct fb_fillrect *rect)
+{
+	u32 screen_stride, dest;
+	u32 fg;
+	u16 bpp = (info->var.bits_per_pixel >> 3);
+
+	/* grab spinlock */
+	spin_lock(&s1d13xxxfb_bitblt_lock);
+
+	/* bytes per x width */
+	screen_stride = (bpp * info->var.xres);
+
+	/* bytes to starting point */
+	dest = ((rect->dy * screen_stride) + (bpp * rect->dx));
+
+	dbg_blit("(solidfill) dx=%d, dy=%d, stride=%d, dest=%d\n"
+		 "(solidfill) : rect_width=%d, rect_height=%d\n",
+				rect->dx, rect->dy, screen_stride, dest,
+				rect->width - 1, rect->height - 1);
+
+	dbg_blit("(solidfill) : xres=%d, yres=%d, bpp=%d\n",
+				info->var.xres, info->var.yres,
+				info->var.bits_per_pixel);
+	dbg_blit("(solidfill) : rop=%d\n", rect->rop);
+
+	/* We split the destination into the three registers */
+	s1d13xxxfb_writereg(info->par, S1DREG_BBLT_DST_START0, (dest & 0x00ff));
+	s1d13xxxfb_writereg(info->par, S1DREG_BBLT_DST_START1, ((dest >> 8) & 0x00ff));
+	s1d13xxxfb_writereg(info->par, S1DREG_BBLT_DST_START2, ((dest >> 16) & 0x00ff));
+
+	/* give information regarding rectangel width */
+	s1d13xxxfb_writereg(info->par, S1DREG_BBLT_WIDTH0, ((rect->width) & 0x00ff) - 1);
+	s1d13xxxfb_writereg(info->par, S1DREG_BBLT_WIDTH1, (rect->width >> 8));
+
+	/* give information regarding rectangel height */
+	s1d13xxxfb_writereg(info->par, S1DREG_BBLT_HEIGHT0, ((rect->height) & 0x00ff) - 1);
+	s1d13xxxfb_writereg(info->par, S1DREG_BBLT_HEIGHT1, (rect->height >> 8));
+
+	if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
+		info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
+		fg = ((u32 *)info->pseudo_palette)[rect->color];
+		dbg_blit("(solidfill) truecolor/directcolor\n");
+		dbg_blit("(solidfill) pseudo_palette[%d] = %d\n", rect->color, fg);
+	} else {
+		fg = rect->color;
+		dbg_blit("(solidfill) color = %d\n", rect->color);
+	}
+
+	/* set foreground color */
+	s1d13xxxfb_writereg(info->par, S1DREG_BBLT_FGC0, (fg & 0xff));
+	s1d13xxxfb_writereg(info->par, S1DREG_BBLT_FGC1, (fg >> 8) & 0xff);
+
+	/* set rectangual region of memory (rectangle and not linear) */
+	s1d13xxxfb_writereg(info->par, S1DREG_BBLT_CTL0, 0x0);
+
+	/* set operation mode SOLID_FILL */
+	s1d13xxxfb_writereg(info->par, S1DREG_BBLT_OP, BBLT_SOLID_FILL);
+
+	/* set bits per pixel (1 = 16bpp, 0 = 8bpp) */
+	s1d13xxxfb_writereg(info->par, S1DREG_BBLT_CTL1, (info->var.bits_per_pixel >> 4));
+
+	/* set the memory offset for the bblt in word sizes */
+	s1d13xxxfb_writereg(info->par, S1DREG_BBLT_MEM_OFF0, (screen_stride >> 1) & 0x00ff);
+	s1d13xxxfb_writereg(info->par, S1DREG_BBLT_MEM_OFF1, (screen_stride >> 9));
+
+	/* and away we go.... */
+	s1d13xxxfb_writereg(info->par, S1DREG_BBLT_CTL0, 0x80);
+
+	/* wait until its done */
+	bltbit_wait_bitclear(info, 0x80, 8000);
+
+	/* let others play */
+	spin_unlock(&s1d13xxxfb_bitblt_lock);
+}
+
+/* framebuffer information structures */
 static struct fb_ops s1d13xxxfb_fbops = {
 	.owner		= THIS_MODULE,
 	.fb_set_par	= s1d13xxxfb_set_par,
@@ -400,7 +665,7 @@ static struct fb_ops s1d13xxxfb_fbops = {
 
 	.fb_pan_display	= s1d13xxxfb_pan_display,
 
-	/* to be replaced by any acceleration we can */
+	/* gets replaced at chip detection time */
 	.fb_fillrect	= cfb_fillrect,
 	.fb_copyarea	= cfb_copyarea,
 	.fb_imageblit	= cfb_imageblit,
@@ -412,9 +677,9 @@ static int s1d13xxxfb_width_tab[2][4] __devinitdata = {
 };
 
 /**
- *      s1d13xxxfb_fetch_hw_state - Configure the framebuffer according to
+ *	s1d13xxxfb_fetch_hw_state - Configure the framebuffer according to
  *	hardware setup.
- *      @info: frame buffer structure
+ *	@info: frame buffer structure
  *
  *	We setup the framebuffer structures according to the current
  *	hardware setup. On some machines, the BIOS will have filled
@@ -569,7 +834,6 @@ s1d13xxxfb_probe(struct platform_device *pdev)
 	if (pdata && pdata->platform_init_video)
 		pdata->platform_init_video();
 
-
 	if (pdev->num_resources != 2) {
 		dev_err(&pdev->dev, "invalid num_resources: %i\n",
 		       pdev->num_resources);
@@ -655,16 +919,27 @@ s1d13xxxfb_probe(struct platform_device *pdev)
 
 	info->fix = s1d13xxxfb_fix;
 	info->fix.mmio_start = pdev->resource[1].start;
-	info->fix.mmio_len = pdev->resource[1].end - pdev->resource[1].start +1;
+	info->fix.mmio_len = pdev->resource[1].end - pdev->resource[1].start + 1;
 	info->fix.smem_start = pdev->resource[0].start;
-	info->fix.smem_len = pdev->resource[0].end - pdev->resource[0].start +1;
+	info->fix.smem_len = pdev->resource[0].end - pdev->resource[0].start + 1;
 
 	printk(KERN_INFO PFX "regs mapped at 0x%p, fb %d KiB mapped at 0x%p\n",
 	       default_par->regs, info->fix.smem_len / 1024, info->screen_base);
 
 	info->par = default_par;
-	info->fbops = &s1d13xxxfb_fbops;
 	info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
+	info->fbops = &s1d13xxxfb_fbops;
+
+	switch(prod_id) {
+	case S1D13506_PROD_ID:	/* activate acceleration */
+		s1d13xxxfb_fbops.fb_fillrect = s1d13xxxfb_bitblt_solidfill;
+		s1d13xxxfb_fbops.fb_copyarea = s1d13xxxfb_bitblt_copyarea;
+		info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN |
+			FBINFO_HWACCEL_FILLRECT | FBINFO_HWACCEL_COPYAREA;
+		break;
+	default:
+		break;
+	}
 
 	/* perform "manual" chip initialization, if needed */
 	if (pdata && pdata->initregs)
diff --git a/drivers/video/s3c-fb.c b/drivers/video/s3c-fb.c
index d3a568e6b169..43680e545427 100644
--- a/drivers/video/s3c-fb.c
+++ b/drivers/video/s3c-fb.c
@@ -358,9 +358,16 @@ static int s3c_fb_set_par(struct fb_info *info)
 	writel(data, regs + VIDOSD_B(win_no));
 
 	data = var->xres * var->yres;
+
+	u32 osdc_data = 0;
+
+	osdc_data = VIDISD14C_ALPHA1_R(0xf) |
+		VIDISD14C_ALPHA1_G(0xf) |
+		VIDISD14C_ALPHA1_B(0xf);
+
 	if (s3c_fb_has_osd_d(win_no)) {
 		writel(data, regs + VIDOSD_D(win_no));
-		writel(0, regs + VIDOSD_C(win_no));
+		writel(osdc_data, regs + VIDOSD_C(win_no));
 	} else
 		writel(data, regs + VIDOSD_C(win_no));
 
@@ -409,8 +416,12 @@ static int s3c_fb_set_par(struct fb_info *info)
 				data |= WINCON1_BPPMODE_19BPP_A1666;
 			else
 				data |= WINCON1_BPPMODE_18BPP_666;
-		} else if (var->transp.length != 0)
-			data |= WINCON1_BPPMODE_25BPP_A1888;
+		} else if (var->transp.length == 1)
+			data |= WINCON1_BPPMODE_25BPP_A1888
+				| WINCON1_BLD_PIX;
+		else if (var->transp.length == 4)
+			data |= WINCON1_BPPMODE_28BPP_A4888
+				| WINCON1_BLD_PIX | WINCON1_ALPHA_SEL;
 		else
 			data |= WINCON0_BPPMODE_24BPP_888;
 
@@ -418,6 +429,20 @@ static int s3c_fb_set_par(struct fb_info *info)
 		break;
 	}
 
+	/* It has no color key control register for window0 */
+	if (win_no > 0) {
+		u32 keycon0_data = 0, keycon1_data = 0;
+
+		keycon0_data = ~(WxKEYCON0_KEYBL_EN |
+				WxKEYCON0_KEYEN_F |
+				WxKEYCON0_DIRCON) | WxKEYCON0_COMPKEY(0);
+
+		keycon1_data = WxKEYCON1_COLVAL(0xffffff);
+
+		writel(keycon0_data, regs + WxKEYCONy(win_no-1, 0));
+		writel(keycon1_data, regs + WxKEYCONy(win_no-1, 1));
+	}
+
 	writel(data, regs + WINCON(win_no));
 	writel(0x0, regs + WINxMAP(win_no));
 
@@ -700,9 +725,12 @@ static void s3c_fb_free_memory(struct s3c_fb *sfb, struct s3c_fb_win *win)
  */
 static void s3c_fb_release_win(struct s3c_fb *sfb, struct s3c_fb_win *win)
 {
-	fb_dealloc_cmap(&win->fbinfo->cmap);
-	unregister_framebuffer(win->fbinfo);
-	s3c_fb_free_memory(sfb, win);
+	if (win->fbinfo) {
+		unregister_framebuffer(win->fbinfo);
+		fb_dealloc_cmap(&win->fbinfo->cmap);
+		s3c_fb_free_memory(sfb, win);
+		framebuffer_release(win->fbinfo);
+	}
 }
 
 /**
@@ -753,7 +781,7 @@ static int __devinit s3c_fb_probe_win(struct s3c_fb *sfb, unsigned int win_no,
 	ret = s3c_fb_alloc_memory(sfb, win);
 	if (ret) {
 		dev_err(sfb->dev, "failed to allocate display memory\n");
-		goto err_framebuffer;
+		return ret;
 	}
 
 	/* setup the r/b/g positions for the window's palette */
@@ -776,7 +804,7 @@ static int __devinit s3c_fb_probe_win(struct s3c_fb *sfb, unsigned int win_no,
 	ret = s3c_fb_check_var(&fbinfo->var, fbinfo);
 	if (ret < 0) {
 		dev_err(sfb->dev, "check_var failed on initial video params\n");
-		goto err_alloc_mem;
+		return ret;
 	}
 
 	/* create initial colour map */
@@ -796,20 +824,13 @@ static int __devinit s3c_fb_probe_win(struct s3c_fb *sfb, unsigned int win_no,
 	ret = register_framebuffer(fbinfo);
 	if (ret < 0) {
 		dev_err(sfb->dev, "failed to register framebuffer\n");
-		goto err_alloc_mem;
+		return ret;
 	}
 
 	*res = win;
 	dev_info(sfb->dev, "window %d: fb %s\n", win_no, fbinfo->fix.id);
 
 	return 0;
-
-err_alloc_mem:
-	s3c_fb_free_memory(sfb, win);
-
-err_framebuffer:
-	unregister_framebuffer(fbinfo);
-	return ret;
 }
 
 /**
diff --git a/drivers/video/s3c2410fb.c b/drivers/video/s3c2410fb.c
index b0b4513ba537..7da0027e2409 100644
--- a/drivers/video/s3c2410fb.c
+++ b/drivers/video/s3c2410fb.c
@@ -24,6 +24,7 @@
 #include <linux/interrupt.h>
 #include <linux/platform_device.h>
 #include <linux/clk.h>
+#include <linux/cpufreq.h>
 
 #include <asm/io.h>
 #include <asm/div64.h>
@@ -89,7 +90,7 @@ static void s3c2410fb_set_lcdaddr(struct fb_info *info)
 static unsigned int s3c2410fb_calc_pixclk(struct s3c2410fb_info *fbi,
 					  unsigned long pixclk)
 {
-	unsigned long clk = clk_get_rate(fbi->clk);
+	unsigned long clk = fbi->clk_rate;
 	unsigned long long div;
 
 	/* pixclk is in picoseconds, our clock is in Hz
@@ -758,6 +759,57 @@ static irqreturn_t s3c2410fb_irq(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
+#ifdef CONFIG_CPU_FREQ
+
+static int s3c2410fb_cpufreq_transition(struct notifier_block *nb,
+					unsigned long val, void *data)
+{
+	struct cpufreq_freqs *freqs = data;
+	struct s3c2410fb_info *info;
+	struct fb_info *fbinfo;
+	long delta_f;
+
+	info = container_of(nb, struct s3c2410fb_info, freq_transition);
+	fbinfo = platform_get_drvdata(to_platform_device(info->dev));
+
+	/* work out change, <0 for speed-up */
+	delta_f = info->clk_rate - clk_get_rate(info->clk);
+
+	if ((val == CPUFREQ_POSTCHANGE && delta_f > 0) ||
+	    (val == CPUFREQ_PRECHANGE && delta_f < 0)) {
+		info->clk_rate = clk_get_rate(info->clk);
+		s3c2410fb_activate_var(fbinfo);
+	}
+
+	return 0;
+}
+
+static inline int s3c2410fb_cpufreq_register(struct s3c2410fb_info *info)
+{
+	info->freq_transition.notifier_call = s3c2410fb_cpufreq_transition;
+
+	return cpufreq_register_notifier(&info->freq_transition,
+					 CPUFREQ_TRANSITION_NOTIFIER);
+}
+
+static inline void s3c2410fb_cpufreq_deregister(struct s3c2410fb_info *info)
+{
+	cpufreq_unregister_notifier(&info->freq_transition,
+				    CPUFREQ_TRANSITION_NOTIFIER);
+}
+
+#else
+static inline int s3c2410fb_cpufreq_register(struct s3c2410fb_info *info)
+{
+	return 0;
+}
+
+static inline void s3c2410fb_cpufreq_deregister(struct s3c2410fb_info *info)
+{
+}
+#endif
+
+
 static char driver_name[] = "s3c2410fb";
 
 static int __init s3c24xxfb_probe(struct platform_device *pdev,
@@ -875,6 +927,8 @@ static int __init s3c24xxfb_probe(struct platform_device *pdev,
 
 	msleep(1);
 
+	info->clk_rate = clk_get_rate(info->clk);
+
 	/* find maximum required memory size for display */
 	for (i = 0; i < mach_info->num_displays; i++) {
 		unsigned long smem_len = mach_info->displays[i].xres;
@@ -904,11 +958,17 @@ static int __init s3c24xxfb_probe(struct platform_device *pdev,
 
 	s3c2410fb_check_var(&fbinfo->var, fbinfo);
 
+	ret = s3c2410fb_cpufreq_register(info);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "Failed to register cpufreq\n");
+		goto free_video_memory;
+	}
+
 	ret = register_framebuffer(fbinfo);
 	if (ret < 0) {
 		printk(KERN_ERR "Failed to register framebuffer device: %d\n",
 			ret);
-		goto free_video_memory;
+		goto free_cpufreq;
 	}
 
 	/* create device files */
@@ -922,6 +982,8 @@ static int __init s3c24xxfb_probe(struct platform_device *pdev,
 
 	return 0;
 
+ free_cpufreq:
+	s3c2410fb_cpufreq_deregister(info);
 free_video_memory:
 	s3c2410fb_unmap_video_memory(fbinfo);
 release_clock:
@@ -961,6 +1023,7 @@ static int s3c2410fb_remove(struct platform_device *pdev)
 	int irq;
 
 	unregister_framebuffer(fbinfo);
+	s3c2410fb_cpufreq_deregister(info);
 
 	s3c2410fb_lcd_enable(info, 0);
 	msleep(1);
diff --git a/drivers/video/s3c2410fb.h b/drivers/video/s3c2410fb.h
index 9a6ba3e9d1b8..47a17bd23011 100644
--- a/drivers/video/s3c2410fb.h
+++ b/drivers/video/s3c2410fb.h
@@ -29,8 +29,13 @@ struct s3c2410fb_info {
 	enum s3c_drv_type	drv_type;
 	struct s3c2410fb_hw	regs;
 
+	unsigned long		clk_rate;
 	unsigned int		palette_ready;
 
+#ifdef CONFIG_CPU_FREQ
+	struct notifier_block	freq_transition;
+#endif
+
 	/* keep these registers in case we need to re-write palette */
 	u32			palette_buffer[256];
 	u32			pseudo_pal[16];
diff --git a/drivers/video/sis/sis_main.c b/drivers/video/sis/sis_main.c
index 7e17ee95a97a..7072d19080d5 100644
--- a/drivers/video/sis/sis_main.c
+++ b/drivers/video/sis/sis_main.c
@@ -5928,7 +5928,7 @@ sisfb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 		if(pci_enable_device(pdev)) {
 			if(ivideo->nbridge) pci_dev_put(ivideo->nbridge);
 			pci_set_drvdata(pdev, NULL);
-			kfree(sis_fb_info);
+			framebuffer_release(sis_fb_info);
 			return -EIO;
 		}
 	}
@@ -6134,7 +6134,7 @@ error_3:	vfree(ivideo->bios_abase);
 		pci_set_drvdata(pdev, NULL);
 		if(!ivideo->sisvga_enabled)
 			pci_disable_device(pdev);
-		kfree(sis_fb_info);
+		framebuffer_release(sis_fb_info);
 		return ret;
 	}
 
diff --git a/drivers/video/stifb.c b/drivers/video/stifb.c
index eabaad765aeb..eec9dcb7f599 100644
--- a/drivers/video/stifb.c
+++ b/drivers/video/stifb.c
@@ -1380,7 +1380,7 @@ stifb_cleanup(void)
 				if (info->screen_base)
 					iounmap(info->screen_base);
 		        fb_dealloc_cmap(&info->cmap);
-		        kfree(info); 
+		        framebuffer_release(info);
 		}
 		sti->info = NULL;
 	}
diff --git a/drivers/video/tcx.c b/drivers/video/tcx.c
index 643afbfe8277..45b883598bf0 100644
--- a/drivers/video/tcx.c
+++ b/drivers/video/tcx.c
@@ -116,17 +116,16 @@ struct tcx_par {
 	u32			flags;
 #define TCX_FLAG_BLANKED	0x00000001
 
-	unsigned long		physbase;
 	unsigned long		which_io;
-	unsigned long		fbsize;
 
 	struct sbus_mmap_map	mmap_map[TCX_MMAP_ENTRIES];
 	int			lowdepth;
 };
 
 /* Reset control plane so that WID is 8-bit plane. */
-static void __tcx_set_control_plane(struct tcx_par *par)
+static void __tcx_set_control_plane(struct fb_info *info)
 {
+	struct tcx_par *par = info->par;
 	u32 __iomem *p, *pend;
 
 	if (par->lowdepth)
@@ -135,7 +134,7 @@ static void __tcx_set_control_plane(struct tcx_par *par)
 	p = par->cplane;
 	if (p == NULL)
 		return;
-	for (pend = p + par->fbsize; p < pend; p++) {
+	for (pend = p + info->fix.smem_len; p < pend; p++) {
 		u32 tmp = sbus_readl(p);
 
 		tmp &= 0xffffff;
@@ -149,7 +148,7 @@ static void tcx_reset(struct fb_info *info)
 	unsigned long flags;
 
 	spin_lock_irqsave(&par->lock, flags);
-	__tcx_set_control_plane(par);
+	__tcx_set_control_plane(info);
 	spin_unlock_irqrestore(&par->lock, flags);
 }
 
@@ -304,7 +303,7 @@ static int tcx_mmap(struct fb_info *info, struct vm_area_struct *vma)
 	struct tcx_par *par = (struct tcx_par *)info->par;
 
 	return sbusfb_mmap_helper(par->mmap_map,
-				  par->physbase, par->fbsize,
+				  info->fix.smem_start, info->fix.smem_len,
 				  par->which_io, vma);
 }
 
@@ -316,7 +315,7 @@ static int tcx_ioctl(struct fb_info *info, unsigned int cmd,
 	return sbusfb_ioctl_helper(cmd, arg, info,
 				   FBTYPE_TCXCOLOR,
 				   (par->lowdepth ? 8 : 24),
-				   par->fbsize);
+				   info->fix.smem_len);
 }
 
 /*
@@ -358,10 +357,10 @@ static void tcx_unmap_regs(struct of_device *op, struct fb_info *info,
 			   par->bt, sizeof(struct bt_regs));
 	if (par->cplane)
 		of_iounmap(&op->resource[4],
-			   par->cplane, par->fbsize * sizeof(u32));
+			   par->cplane, info->fix.smem_len * sizeof(u32));
 	if (info->screen_base)
 		of_iounmap(&op->resource[0],
-			   info->screen_base, par->fbsize);
+			   info->screen_base, info->fix.smem_len);
 }
 
 static int __devinit tcx_probe(struct of_device *op,
@@ -391,7 +390,7 @@ static int __devinit tcx_probe(struct of_device *op,
 
 	linebytes = of_getintprop_default(dp, "linebytes",
 					  info->var.xres);
-	par->fbsize = PAGE_ALIGN(linebytes * info->var.yres);
+	info->fix.smem_len = PAGE_ALIGN(linebytes * info->var.yres);
 
 	par->tec = of_ioremap(&op->resource[7], 0,
 				  sizeof(struct tcx_tec), "tcx tec");
@@ -400,7 +399,7 @@ static int __devinit tcx_probe(struct of_device *op,
 	par->bt = of_ioremap(&op->resource[8], 0,
 				 sizeof(struct bt_regs), "tcx dac");
 	info->screen_base = of_ioremap(&op->resource[0], 0,
-					   par->fbsize, "tcx ram");
+					   info->fix.smem_len, "tcx ram");
 	if (!par->tec || !par->thc ||
 	    !par->bt || !info->screen_base)
 		goto out_unmap_regs;
@@ -408,7 +407,7 @@ static int __devinit tcx_probe(struct of_device *op,
 	memcpy(&par->mmap_map, &__tcx_mmap_map, sizeof(par->mmap_map));
 	if (!par->lowdepth) {
 		par->cplane = of_ioremap(&op->resource[4], 0,
-					     par->fbsize * sizeof(u32),
+					     info->fix.smem_len * sizeof(u32),
 					     "tcx cplane");
 		if (!par->cplane)
 			goto out_unmap_regs;
@@ -419,7 +418,7 @@ static int __devinit tcx_probe(struct of_device *op,
 		par->mmap_map[6].size = SBUS_MMAP_EMPTY;
 	}
 
-	par->physbase = op->resource[0].start;
+	info->fix.smem_start = op->resource[0].start;
 	par->which_io = op->resource[0].flags & IORESOURCE_BITS;
 
 	for (i = 0; i < TCX_MMAP_ENTRIES; i++) {
@@ -473,7 +472,7 @@ static int __devinit tcx_probe(struct of_device *op,
 	printk(KERN_INFO "%s: TCX at %lx:%lx, %s\n",
 	       dp->full_name,
 	       par->which_io,
-	       par->physbase,
+	       info->fix.smem_start,
 	       par->lowdepth ? "8-bit only" : "24-bit depth");
 
 	return 0;
diff --git a/drivers/video/vesafb.c b/drivers/video/vesafb.c
index d6856f43d241..bd37ee1f6a25 100644
--- a/drivers/video/vesafb.c
+++ b/drivers/video/vesafb.c
@@ -174,8 +174,17 @@ static int vesafb_setcolreg(unsigned regno, unsigned red, unsigned green,
 	return err;
 }
 
+static void vesafb_destroy(struct fb_info *info)
+{
+	if (info->screen_base)
+		iounmap(info->screen_base);
+	release_mem_region(info->aperture_base, info->aperture_size);
+	framebuffer_release(info);
+}
+
 static struct fb_ops vesafb_ops = {
 	.owner		= THIS_MODULE,
+	.fb_destroy     = vesafb_destroy,
 	.fb_setcolreg	= vesafb_setcolreg,
 	.fb_pan_display	= vesafb_pan_display,
 	.fb_fillrect	= cfb_fillrect,
@@ -286,6 +295,10 @@ static int __init vesafb_probe(struct platform_device *dev)
 	info->pseudo_palette = info->par;
 	info->par = NULL;
 
+	/* set vesafb aperture size for generic probing */
+	info->aperture_base = screen_info.lfb_base;
+	info->aperture_size = size_total;
+
 	info->screen_base = ioremap(vesafb_fix.smem_start, vesafb_fix.smem_len);
 	if (!info->screen_base) {
 		printk(KERN_ERR
@@ -437,7 +450,7 @@ static int __init vesafb_probe(struct platform_device *dev)
 	info->fbops = &vesafb_ops;
 	info->var = vesafb_defined;
 	info->fix = vesafb_fix;
-	info->flags = FBINFO_FLAG_DEFAULT |
+	info->flags = FBINFO_FLAG_DEFAULT | FBINFO_MISC_FIRMWARE |
 		(ypan ? FBINFO_HWACCEL_YPAN : 0);
 
 	if (!ypan)
diff --git a/drivers/vlynq/Kconfig b/drivers/vlynq/Kconfig
new file mode 100644
index 000000000000..f6542211db48
--- /dev/null
+++ b/drivers/vlynq/Kconfig
@@ -0,0 +1,20 @@
+menu "TI VLYNQ"
+
+config VLYNQ
+	bool "TI VLYNQ bus support"
+	depends on AR7 && EXPERIMENTAL
+	help
+	  Support for Texas Instruments(R) VLYNQ bus.
+	  The VLYNQ bus is a high-speed, serial and packetized
+	  data bus which allows external peripherals of a SoC
+	  to appear into the system's main memory.
+
+	  If unsure, say N
+
+config VLYNQ_DEBUG
+	bool "VLYNQ bus debug"
+	depends on VLYNQ && KERNEL_DEBUG
+	help
+	  Turn on VLYNQ bus debugging.
+
+endmenu
diff --git a/drivers/vlynq/Makefile b/drivers/vlynq/Makefile
new file mode 100644
index 000000000000..b3f61149b599
--- /dev/null
+++ b/drivers/vlynq/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for kernel vlynq drivers
+#
+
+obj-$(CONFIG_VLYNQ) += vlynq.o
diff --git a/drivers/vlynq/vlynq.c b/drivers/vlynq/vlynq.c
new file mode 100644
index 000000000000..7335433b067b
--- /dev/null
+++ b/drivers/vlynq/vlynq.c
@@ -0,0 +1,814 @@
+/*
+ * Copyright (C) 2006, 2007 Eugene Konev <ejka@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Parts of the VLYNQ specification can be found here:
+ * http://www.ti.com/litv/pdf/sprue36a
+ */
+
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+
+#include <linux/vlynq.h>
+
+#define VLYNQ_CTRL_PM_ENABLE		0x80000000
+#define VLYNQ_CTRL_CLOCK_INT		0x00008000
+#define VLYNQ_CTRL_CLOCK_DIV(x)		(((x) & 7) << 16)
+#define VLYNQ_CTRL_INT_LOCAL		0x00004000
+#define VLYNQ_CTRL_INT_ENABLE		0x00002000
+#define VLYNQ_CTRL_INT_VECTOR(x)	(((x) & 0x1f) << 8)
+#define VLYNQ_CTRL_INT2CFG		0x00000080
+#define VLYNQ_CTRL_RESET		0x00000001
+
+#define VLYNQ_CTRL_CLOCK_MASK          (0x7 << 16)
+
+#define VLYNQ_INT_OFFSET		0x00000014
+#define VLYNQ_REMOTE_OFFSET		0x00000080
+
+#define VLYNQ_STATUS_LINK		0x00000001
+#define VLYNQ_STATUS_LERROR		0x00000080
+#define VLYNQ_STATUS_RERROR		0x00000100
+
+#define VINT_ENABLE			0x00000100
+#define VINT_TYPE_EDGE			0x00000080
+#define VINT_LEVEL_LOW			0x00000040
+#define VINT_VECTOR(x)			((x) & 0x1f)
+#define VINT_OFFSET(irq)		(8 * ((irq) % 4))
+
+#define VLYNQ_AUTONEGO_V2		0x00010000
+
+struct vlynq_regs {
+	u32 revision;
+	u32 control;
+	u32 status;
+	u32 int_prio;
+	u32 int_status;
+	u32 int_pending;
+	u32 int_ptr;
+	u32 tx_offset;
+	struct vlynq_mapping rx_mapping[4];
+	u32 chip;
+	u32 autonego;
+	u32 unused[6];
+	u32 int_device[8];
+};
+
+#ifdef VLYNQ_DEBUG
+static void vlynq_dump_regs(struct vlynq_device *dev)
+{
+	int i;
+
+	printk(KERN_DEBUG "VLYNQ local=%p remote=%p\n",
+			dev->local, dev->remote);
+	for (i = 0; i < 32; i++) {
+		printk(KERN_DEBUG "VLYNQ: local %d: %08x\n",
+			i + 1, ((u32 *)dev->local)[i]);
+		printk(KERN_DEBUG "VLYNQ: remote %d: %08x\n",
+			i + 1, ((u32 *)dev->remote)[i]);
+	}
+}
+
+static void vlynq_dump_mem(u32 *base, int count)
+{
+	int i;
+
+	for (i = 0; i < (count + 3) / 4; i++) {
+		if (i % 4 == 0)
+			printk(KERN_DEBUG "\nMEM[0x%04x]:", i * 4);
+		printk(KERN_DEBUG " 0x%08x", *(base + i));
+	}
+	printk(KERN_DEBUG "\n");
+}
+#endif
+
+/* Check the VLYNQ link status with a given device */
+static int vlynq_linked(struct vlynq_device *dev)
+{
+	int i;
+
+	for (i = 0; i < 100; i++)
+		if (readl(&dev->local->status) & VLYNQ_STATUS_LINK)
+			return 1;
+		else
+			cpu_relax();
+
+	return 0;
+}
+
+static void vlynq_reset(struct vlynq_device *dev)
+{
+	writel(readl(&dev->local->control) | VLYNQ_CTRL_RESET,
+			&dev->local->control);
+
+	/* Wait for the devices to finish resetting */
+	msleep(5);
+
+	/* Remove reset bit */
+	writel(readl(&dev->local->control) & ~VLYNQ_CTRL_RESET,
+			&dev->local->control);
+
+	/* Give some time for the devices to settle */
+	msleep(5);
+}
+
+static void vlynq_irq_unmask(unsigned int irq)
+{
+	u32 val;
+	struct vlynq_device *dev = get_irq_chip_data(irq);
+	int virq;
+
+	BUG_ON(!dev);
+	virq = irq - dev->irq_start;
+	val = readl(&dev->remote->int_device[virq >> 2]);
+	val |= (VINT_ENABLE | virq) << VINT_OFFSET(virq);
+	writel(val, &dev->remote->int_device[virq >> 2]);
+}
+
+static void vlynq_irq_mask(unsigned int irq)
+{
+	u32 val;
+	struct vlynq_device *dev = get_irq_chip_data(irq);
+	int virq;
+
+	BUG_ON(!dev);
+	virq = irq - dev->irq_start;
+	val = readl(&dev->remote->int_device[virq >> 2]);
+	val &= ~(VINT_ENABLE << VINT_OFFSET(virq));
+	writel(val, &dev->remote->int_device[virq >> 2]);
+}
+
+static int vlynq_irq_type(unsigned int irq, unsigned int flow_type)
+{
+	u32 val;
+	struct vlynq_device *dev = get_irq_chip_data(irq);
+	int virq;
+
+	BUG_ON(!dev);
+	virq = irq - dev->irq_start;
+	val = readl(&dev->remote->int_device[virq >> 2]);
+	switch (flow_type & IRQ_TYPE_SENSE_MASK) {
+	case IRQ_TYPE_EDGE_RISING:
+	case IRQ_TYPE_EDGE_FALLING:
+	case IRQ_TYPE_EDGE_BOTH:
+		val |= VINT_TYPE_EDGE << VINT_OFFSET(virq);
+		val &= ~(VINT_LEVEL_LOW << VINT_OFFSET(virq));
+		break;
+	case IRQ_TYPE_LEVEL_HIGH:
+		val &= ~(VINT_TYPE_EDGE << VINT_OFFSET(virq));
+		val &= ~(VINT_LEVEL_LOW << VINT_OFFSET(virq));
+		break;
+	case IRQ_TYPE_LEVEL_LOW:
+		val &= ~(VINT_TYPE_EDGE << VINT_OFFSET(virq));
+		val |= VINT_LEVEL_LOW << VINT_OFFSET(virq);
+		break;
+	default:
+		return -EINVAL;
+	}
+	writel(val, &dev->remote->int_device[virq >> 2]);
+	return 0;
+}
+
+static void vlynq_local_ack(unsigned int irq)
+{
+	struct vlynq_device *dev = get_irq_chip_data(irq);
+
+	u32 status = readl(&dev->local->status);
+
+	pr_debug("%s: local status: 0x%08x\n",
+		       dev_name(&dev->dev), status);
+	writel(status, &dev->local->status);
+}
+
+static void vlynq_remote_ack(unsigned int irq)
+{
+	struct vlynq_device *dev = get_irq_chip_data(irq);
+
+	u32 status = readl(&dev->remote->status);
+
+	pr_debug("%s: remote status: 0x%08x\n",
+		       dev_name(&dev->dev), status);
+	writel(status, &dev->remote->status);
+}
+
+static irqreturn_t vlynq_irq(int irq, void *dev_id)
+{
+	struct vlynq_device *dev = dev_id;
+	u32 status;
+	int virq = 0;
+
+	status = readl(&dev->local->int_status);
+	writel(status, &dev->local->int_status);
+
+	if (unlikely(!status))
+		spurious_interrupt();
+
+	while (status) {
+		if (status & 1)
+			do_IRQ(dev->irq_start + virq);
+		status >>= 1;
+		virq++;
+	}
+
+	return IRQ_HANDLED;
+}
+
+static struct irq_chip vlynq_irq_chip = {
+	.name = "vlynq",
+	.unmask = vlynq_irq_unmask,
+	.mask = vlynq_irq_mask,
+	.set_type = vlynq_irq_type,
+};
+
+static struct irq_chip vlynq_local_chip = {
+	.name = "vlynq local error",
+	.unmask = vlynq_irq_unmask,
+	.mask = vlynq_irq_mask,
+	.ack = vlynq_local_ack,
+};
+
+static struct irq_chip vlynq_remote_chip = {
+	.name = "vlynq local error",
+	.unmask = vlynq_irq_unmask,
+	.mask = vlynq_irq_mask,
+	.ack = vlynq_remote_ack,
+};
+
+static int vlynq_setup_irq(struct vlynq_device *dev)
+{
+	u32 val;
+	int i, virq;
+
+	if (dev->local_irq == dev->remote_irq) {
+		printk(KERN_ERR
+		       "%s: local vlynq irq should be different from remote\n",
+		       dev_name(&dev->dev));
+		return -EINVAL;
+	}
+
+	/* Clear local and remote error bits */
+	writel(readl(&dev->local->status), &dev->local->status);
+	writel(readl(&dev->remote->status), &dev->remote->status);
+
+	/* Now setup interrupts */
+	val = VLYNQ_CTRL_INT_VECTOR(dev->local_irq);
+	val |= VLYNQ_CTRL_INT_ENABLE | VLYNQ_CTRL_INT_LOCAL |
+		VLYNQ_CTRL_INT2CFG;
+	val |= readl(&dev->local->control);
+	writel(VLYNQ_INT_OFFSET, &dev->local->int_ptr);
+	writel(val, &dev->local->control);
+
+	val = VLYNQ_CTRL_INT_VECTOR(dev->remote_irq);
+	val |= VLYNQ_CTRL_INT_ENABLE;
+	val |= readl(&dev->remote->control);
+	writel(VLYNQ_INT_OFFSET, &dev->remote->int_ptr);
+	writel(val, &dev->remote->int_ptr);
+	writel(val, &dev->remote->control);
+
+	for (i = dev->irq_start; i <= dev->irq_end; i++) {
+		virq = i - dev->irq_start;
+		if (virq == dev->local_irq) {
+			set_irq_chip_and_handler(i, &vlynq_local_chip,
+						 handle_level_irq);
+			set_irq_chip_data(i, dev);
+		} else if (virq == dev->remote_irq) {
+			set_irq_chip_and_handler(i, &vlynq_remote_chip,
+						 handle_level_irq);
+			set_irq_chip_data(i, dev);
+		} else {
+			set_irq_chip_and_handler(i, &vlynq_irq_chip,
+						 handle_simple_irq);
+			set_irq_chip_data(i, dev);
+			writel(0, &dev->remote->int_device[virq >> 2]);
+		}
+	}
+
+	if (request_irq(dev->irq, vlynq_irq, IRQF_SHARED, "vlynq", dev)) {
+		printk(KERN_ERR "%s: request_irq failed\n",
+					dev_name(&dev->dev));
+		return -EAGAIN;
+	}
+
+	return 0;
+}
+
+static void vlynq_device_release(struct device *dev)
+{
+	struct vlynq_device *vdev = to_vlynq_device(dev);
+	kfree(vdev);
+}
+
+static int vlynq_device_match(struct device *dev,
+			      struct device_driver *drv)
+{
+	struct vlynq_device *vdev = to_vlynq_device(dev);
+	struct vlynq_driver *vdrv = to_vlynq_driver(drv);
+	struct vlynq_device_id *ids = vdrv->id_table;
+
+	while (ids->id) {
+		if (ids->id == vdev->dev_id) {
+			vdev->divisor = ids->divisor;
+			vlynq_set_drvdata(vdev, ids);
+			printk(KERN_INFO "Driver found for VLYNQ "
+				"device: %08x\n", vdev->dev_id);
+			return 1;
+		}
+		printk(KERN_DEBUG "Not using the %08x VLYNQ device's driver"
+			" for VLYNQ device: %08x\n", ids->id, vdev->dev_id);
+		ids++;
+	}
+	return 0;
+}
+
+static int vlynq_device_probe(struct device *dev)
+{
+	struct vlynq_device *vdev = to_vlynq_device(dev);
+	struct vlynq_driver *drv = to_vlynq_driver(dev->driver);
+	struct vlynq_device_id *id = vlynq_get_drvdata(vdev);
+	int result = -ENODEV;
+
+	if (drv->probe)
+		result = drv->probe(vdev, id);
+	if (result)
+		put_device(dev);
+	return result;
+}
+
+static int vlynq_device_remove(struct device *dev)
+{
+	struct vlynq_driver *drv = to_vlynq_driver(dev->driver);
+
+	if (drv->remove)
+		drv->remove(to_vlynq_device(dev));
+
+	return 0;
+}
+
+int __vlynq_register_driver(struct vlynq_driver *driver, struct module *owner)
+{
+	driver->driver.name = driver->name;
+	driver->driver.bus = &vlynq_bus_type;
+	return driver_register(&driver->driver);
+}
+EXPORT_SYMBOL(__vlynq_register_driver);
+
+void vlynq_unregister_driver(struct vlynq_driver *driver)
+{
+	driver_unregister(&driver->driver);
+}
+EXPORT_SYMBOL(vlynq_unregister_driver);
+
+/*
+ * A VLYNQ remote device can clock the VLYNQ bus master
+ * using a dedicated clock line. In that case, both the
+ * remove device and the bus master should have the same
+ * serial clock dividers configured. Iterate through the
+ * 8 possible dividers until we actually link with the
+ * device.
+ */
+static int __vlynq_try_remote(struct vlynq_device *dev)
+{
+	int i;
+
+	vlynq_reset(dev);
+	for (i = dev->dev_id ? vlynq_rdiv2 : vlynq_rdiv8; dev->dev_id ?
+			i <= vlynq_rdiv8 : i >= vlynq_rdiv2;
+		dev->dev_id ? i++ : i--) {
+
+		if (!vlynq_linked(dev))
+			break;
+
+		writel((readl(&dev->remote->control) &
+				~VLYNQ_CTRL_CLOCK_MASK) |
+				VLYNQ_CTRL_CLOCK_INT |
+				VLYNQ_CTRL_CLOCK_DIV(i - vlynq_rdiv1),
+				&dev->remote->control);
+		writel((readl(&dev->local->control)
+				& ~(VLYNQ_CTRL_CLOCK_INT |
+				VLYNQ_CTRL_CLOCK_MASK)) |
+				VLYNQ_CTRL_CLOCK_DIV(i - vlynq_rdiv1),
+				&dev->local->control);
+
+		if (vlynq_linked(dev)) {
+			printk(KERN_DEBUG
+				"%s: using remote clock divisor %d\n",
+				dev_name(&dev->dev), i - vlynq_rdiv1 + 1);
+			dev->divisor = i;
+			return 0;
+		} else {
+			vlynq_reset(dev);
+		}
+	}
+
+	return -ENODEV;
+}
+
+/*
+ * A VLYNQ remote device can be clocked by the VLYNQ bus
+ * master using a dedicated clock line. In that case, only
+ * the bus master configures the serial clock divider.
+ * Iterate through the 8 possible dividers until we
+ * actually get a link with the device.
+ */
+static int __vlynq_try_local(struct vlynq_device *dev)
+{
+	int i;
+
+	vlynq_reset(dev);
+
+	for (i = dev->dev_id ? vlynq_ldiv2 : vlynq_ldiv8; dev->dev_id ?
+			i <= vlynq_ldiv8 : i >= vlynq_ldiv2;
+		dev->dev_id ? i++ : i--) {
+
+		writel((readl(&dev->local->control) &
+				~VLYNQ_CTRL_CLOCK_MASK) |
+				VLYNQ_CTRL_CLOCK_INT |
+				VLYNQ_CTRL_CLOCK_DIV(i - vlynq_ldiv1),
+				&dev->local->control);
+
+		if (vlynq_linked(dev)) {
+			printk(KERN_DEBUG
+				"%s: using local clock divisor %d\n",
+				dev_name(&dev->dev), i - vlynq_ldiv1 + 1);
+			dev->divisor = i;
+			return 0;
+		} else {
+			vlynq_reset(dev);
+		}
+	}
+
+	return -ENODEV;
+}
+
+/*
+ * When using external clocking method, serial clock
+ * is supplied by an external oscillator, therefore we
+ * should mask the local clock bit in the clock control
+ * register for both the bus master and the remote device.
+ */
+static int __vlynq_try_external(struct vlynq_device *dev)
+{
+	vlynq_reset(dev);
+	if (!vlynq_linked(dev))
+		return -ENODEV;
+
+	writel((readl(&dev->remote->control) &
+			~VLYNQ_CTRL_CLOCK_INT),
+			&dev->remote->control);
+
+	writel((readl(&dev->local->control) &
+			~VLYNQ_CTRL_CLOCK_INT),
+			&dev->local->control);
+
+	if (vlynq_linked(dev)) {
+		printk(KERN_DEBUG "%s: using external clock\n",
+			dev_name(&dev->dev));
+			dev->divisor = vlynq_div_external;
+		return 0;
+	}
+
+	return -ENODEV;
+}
+
+static int __vlynq_enable_device(struct vlynq_device *dev)
+{
+	int result;
+	struct plat_vlynq_ops *ops = dev->dev.platform_data;
+
+	result = ops->on(dev);
+	if (result)
+		return result;
+
+	switch (dev->divisor) {
+	case vlynq_div_external:
+	case vlynq_div_auto:
+		/* When the device is brought from reset it should have clock
+		 * generation negotiated by hardware.
+		 * Check which device is generating clocks and perform setup
+		 * accordingly */
+		if (vlynq_linked(dev) && readl(&dev->remote->control) &
+		   VLYNQ_CTRL_CLOCK_INT) {
+			if (!__vlynq_try_remote(dev) ||
+				!__vlynq_try_local(dev)  ||
+				!__vlynq_try_external(dev))
+				return 0;
+		} else {
+			if (!__vlynq_try_external(dev) ||
+				!__vlynq_try_local(dev)    ||
+				!__vlynq_try_remote(dev))
+				return 0;
+		}
+		break;
+	case vlynq_ldiv1:
+	case vlynq_ldiv2:
+	case vlynq_ldiv3:
+	case vlynq_ldiv4:
+	case vlynq_ldiv5:
+	case vlynq_ldiv6:
+	case vlynq_ldiv7:
+	case vlynq_ldiv8:
+		writel(VLYNQ_CTRL_CLOCK_INT |
+			VLYNQ_CTRL_CLOCK_DIV(dev->divisor -
+			vlynq_ldiv1), &dev->local->control);
+		writel(0, &dev->remote->control);
+		if (vlynq_linked(dev)) {
+			printk(KERN_DEBUG
+				"%s: using local clock divisor %d\n",
+				dev_name(&dev->dev),
+				dev->divisor - vlynq_ldiv1 + 1);
+			return 0;
+		}
+		break;
+	case vlynq_rdiv1:
+	case vlynq_rdiv2:
+	case vlynq_rdiv3:
+	case vlynq_rdiv4:
+	case vlynq_rdiv5:
+	case vlynq_rdiv6:
+	case vlynq_rdiv7:
+	case vlynq_rdiv8:
+		writel(0, &dev->local->control);
+		writel(VLYNQ_CTRL_CLOCK_INT |
+			VLYNQ_CTRL_CLOCK_DIV(dev->divisor -
+			vlynq_rdiv1), &dev->remote->control);
+		if (vlynq_linked(dev)) {
+			printk(KERN_DEBUG
+				"%s: using remote clock divisor %d\n",
+				dev_name(&dev->dev),
+				dev->divisor - vlynq_rdiv1 + 1);
+			return 0;
+		}
+		break;
+	}
+
+	ops->off(dev);
+	return -ENODEV;
+}
+
+int vlynq_enable_device(struct vlynq_device *dev)
+{
+	struct plat_vlynq_ops *ops = dev->dev.platform_data;
+	int result = -ENODEV;
+
+	result = __vlynq_enable_device(dev);
+	if (result)
+		return result;
+
+	result = vlynq_setup_irq(dev);
+	if (result)
+		ops->off(dev);
+
+	dev->enabled = !result;
+	return result;
+}
+EXPORT_SYMBOL(vlynq_enable_device);
+
+
+void vlynq_disable_device(struct vlynq_device *dev)
+{
+	struct plat_vlynq_ops *ops = dev->dev.platform_data;
+
+	dev->enabled = 0;
+	free_irq(dev->irq, dev);
+	ops->off(dev);
+}
+EXPORT_SYMBOL(vlynq_disable_device);
+
+int vlynq_set_local_mapping(struct vlynq_device *dev, u32 tx_offset,
+			    struct vlynq_mapping *mapping)
+{
+	int i;
+
+	if (!dev->enabled)
+		return -ENXIO;
+
+	writel(tx_offset, &dev->local->tx_offset);
+	for (i = 0; i < 4; i++) {
+		writel(mapping[i].offset, &dev->local->rx_mapping[i].offset);
+		writel(mapping[i].size, &dev->local->rx_mapping[i].size);
+	}
+	return 0;
+}
+EXPORT_SYMBOL(vlynq_set_local_mapping);
+
+int vlynq_set_remote_mapping(struct vlynq_device *dev, u32 tx_offset,
+			     struct vlynq_mapping *mapping)
+{
+	int i;
+
+	if (!dev->enabled)
+		return -ENXIO;
+
+	writel(tx_offset, &dev->remote->tx_offset);
+	for (i = 0; i < 4; i++) {
+		writel(mapping[i].offset, &dev->remote->rx_mapping[i].offset);
+		writel(mapping[i].size, &dev->remote->rx_mapping[i].size);
+	}
+	return 0;
+}
+EXPORT_SYMBOL(vlynq_set_remote_mapping);
+
+int vlynq_set_local_irq(struct vlynq_device *dev, int virq)
+{
+	int irq = dev->irq_start + virq;
+	if (dev->enabled)
+		return -EBUSY;
+
+	if ((irq < dev->irq_start) || (irq > dev->irq_end))
+		return -EINVAL;
+
+	if (virq == dev->remote_irq)
+		return -EINVAL;
+
+	dev->local_irq = virq;
+
+	return 0;
+}
+EXPORT_SYMBOL(vlynq_set_local_irq);
+
+int vlynq_set_remote_irq(struct vlynq_device *dev, int virq)
+{
+	int irq = dev->irq_start + virq;
+	if (dev->enabled)
+		return -EBUSY;
+
+	if ((irq < dev->irq_start) || (irq > dev->irq_end))
+		return -EINVAL;
+
+	if (virq == dev->local_irq)
+		return -EINVAL;
+
+	dev->remote_irq = virq;
+
+	return 0;
+}
+EXPORT_SYMBOL(vlynq_set_remote_irq);
+
+static int vlynq_probe(struct platform_device *pdev)
+{
+	struct vlynq_device *dev;
+	struct resource *regs_res, *mem_res, *irq_res;
+	int len, result;
+
+	regs_res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs");
+	if (!regs_res)
+		return -ENODEV;
+
+	mem_res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mem");
+	if (!mem_res)
+		return -ENODEV;
+
+	irq_res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "devirq");
+	if (!irq_res)
+		return -ENODEV;
+
+	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+	if (!dev) {
+		printk(KERN_ERR
+		       "vlynq: failed to allocate device structure\n");
+		return -ENOMEM;
+	}
+
+	dev->id = pdev->id;
+	dev->dev.bus = &vlynq_bus_type;
+	dev->dev.parent = &pdev->dev;
+	dev_set_name(&dev->dev, "vlynq%d", dev->id);
+	dev->dev.platform_data = pdev->dev.platform_data;
+	dev->dev.release = vlynq_device_release;
+
+	dev->regs_start = regs_res->start;
+	dev->regs_end = regs_res->end;
+	dev->mem_start = mem_res->start;
+	dev->mem_end = mem_res->end;
+
+	len = regs_res->end - regs_res->start;
+	if (!request_mem_region(regs_res->start, len, dev_name(&dev->dev))) {
+		printk(KERN_ERR "%s: Can't request vlynq registers\n",
+		       dev_name(&dev->dev));
+		result = -ENXIO;
+		goto fail_request;
+	}
+
+	dev->local = ioremap(regs_res->start, len);
+	if (!dev->local) {
+		printk(KERN_ERR "%s: Can't remap vlynq registers\n",
+		       dev_name(&dev->dev));
+		result = -ENXIO;
+		goto fail_remap;
+	}
+
+	dev->remote = (struct vlynq_regs *)((void *)dev->local +
+					    VLYNQ_REMOTE_OFFSET);
+
+	dev->irq = platform_get_irq_byname(pdev, "irq");
+	dev->irq_start = irq_res->start;
+	dev->irq_end = irq_res->end;
+	dev->local_irq = dev->irq_end - dev->irq_start;
+	dev->remote_irq = dev->local_irq - 1;
+
+	if (device_register(&dev->dev))
+		goto fail_register;
+	platform_set_drvdata(pdev, dev);
+
+	printk(KERN_INFO "%s: regs 0x%p, irq %d, mem 0x%p\n",
+	       dev_name(&dev->dev), (void *)dev->regs_start, dev->irq,
+	       (void *)dev->mem_start);
+
+	dev->dev_id = 0;
+	dev->divisor = vlynq_div_auto;
+	result = __vlynq_enable_device(dev);
+	if (result == 0) {
+		dev->dev_id = readl(&dev->remote->chip);
+		((struct plat_vlynq_ops *)(dev->dev.platform_data))->off(dev);
+	}
+	if (dev->dev_id)
+		printk(KERN_INFO "Found a VLYNQ device: %08x\n", dev->dev_id);
+
+	return 0;
+
+fail_register:
+	iounmap(dev->local);
+fail_remap:
+fail_request:
+	release_mem_region(regs_res->start, len);
+	kfree(dev);
+	return result;
+}
+
+static int vlynq_remove(struct platform_device *pdev)
+{
+	struct vlynq_device *dev = platform_get_drvdata(pdev);
+
+	device_unregister(&dev->dev);
+	iounmap(dev->local);
+	release_mem_region(dev->regs_start, dev->regs_end - dev->regs_start);
+
+	kfree(dev);
+
+	return 0;
+}
+
+static struct platform_driver vlynq_platform_driver = {
+	.driver.name = "vlynq",
+	.probe = vlynq_probe,
+	.remove = __devexit_p(vlynq_remove),
+};
+
+struct bus_type vlynq_bus_type = {
+	.name = "vlynq",
+	.match = vlynq_device_match,
+	.probe = vlynq_device_probe,
+	.remove = vlynq_device_remove,
+};
+EXPORT_SYMBOL(vlynq_bus_type);
+
+static int __devinit vlynq_init(void)
+{
+	int res = 0;
+
+	res = bus_register(&vlynq_bus_type);
+	if (res)
+		goto fail_bus;
+
+	res = platform_driver_register(&vlynq_platform_driver);
+	if (res)
+		goto fail_platform;
+
+	return 0;
+
+fail_platform:
+	bus_unregister(&vlynq_bus_type);
+fail_bus:
+	return res;
+}
+
+static void __devexit vlynq_exit(void)
+{
+	platform_driver_unregister(&vlynq_platform_driver);
+	bus_unregister(&vlynq_bus_type);
+}
+
+module_init(vlynq_init);
+module_exit(vlynq_exit);
author	Linus Torvalds <torvalds@linux-foundation.org>	2009-06-16 19:50:13 -0700
committer	Linus Torvalds <torvalds@linux-foundation.org>	2009-06-16 19:50:13 -0700
commit	517d08699b250021303f9a7cf0d758b6dc0748ed (patch)
tree	5e5b0134c3fffb78fe9d8b1641a64ff28fdd7bbc /drivers
parent	8eeee4e2f04fc551f50c9d9847da2d73d7d33728 (diff)
parent	a34601c5d84134055782ee031d58d82f5440e918 (diff)
download	linux-517d08699b250021303f9a7cf0d758b6dc0748ed.tar.bz2