Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-linus-1

* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6: (9356 commits)
  [media] rc: update for bitop name changes
  fs: simplify iget & friends
  fs: pull inode->i_lock up out of writeback_single_inode
  fs: rename inode_lock to inode_hash_lock
  fs: move i_wb_list out from under inode_lock
  fs: move i_sb_list out from under inode_lock
  fs: remove inode_lock from iput_final and prune_icache
  fs: Lock the inode LRU list separately
  fs: factor inode disposal
  fs: protect inode->i_state with inode->i_lock
  lib, arch: add filter argument to show_mem and fix private implementations
  SLUB: Write to per cpu data when allocating it
  slub: Fix debugobjects with lockless fastpath
  autofs4: Do not potentially dereference NULL pointer returned by fget() in autofs_dev_ioctl_setpipefd()
  autofs4 - remove autofs4_lock
  autofs4 - fix d_manage() return on rcu-walk
  autofs4 - fix autofs4_expire_indirect() traversal
  autofs4 - fix dentry leak in autofs4_expire_direct()
  autofs4 - reinstate last used update on access
  vfs - check non-mountpoint dentry might block in __follow_mount_rcu()
  ...

NOTE!

This merge commit was created to fix compilation error. The block
tree was merged upstream and removed the 'elv_queue_empty()'
function which the new 'mtdswap' driver is using. So a simple
merge of the mtd tree with upstream does not compile. And the
mtd tree has already be published, so re-basing it is not an option.

To fix this unfortunate situation, I had to merge upstream into the
mtd-2.6.git tree without committing, put the fixup patch on top of
this, and then commit this. The result is that we do not have commits
which do not compile.

In other words, this merge commit "merges" 3 things: the MTD tree, the
upstream tree, and the fixup patch.

1 files changed, 0 insertions, 343 deletions

diff --git a/arch/arm/mach-lh7a40x/ssp-cpld.c b/arch/arm/mach-lh7a40x/ssp-cpld.c
deleted file mode 100644
index 2901d49d1484..000000000000
--- a/arch/arm/mach-lh7a40x/ssp-cpld.c
+++ /dev/null
@@ -1,343 +0,0 @@
-/* arch/arm/mach-lh7a40x/ssp-cpld.c
- *
- *  Copyright (C) 2004,2005 Marc Singer
- *
- *  This program is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU General Public License
- *  version 2 as published by the Free Software Foundation.
- *
- * SSP/SPI driver for the CardEngine CPLD.
- *
- */
-
-/* NOTES
-   -----
-
-   o *** This driver is cribbed from the 7952x implementation.
-	 Some comments may not apply.
-
-   o This driver contains sufficient logic to control either the
-     serial EEPROMs or the audio codec.  It is included in the kernel
-     to support the codec.  The EEPROMs are really the responsibility
-     of the boot loader and should probably be left alone.
-
-   o The code must be augmented to cope with multiple, simultaneous
-     clients.
-     o The audio codec writes to the codec chip whenever playback
-       starts.
-     o The touchscreen driver writes to the ads chip every time it
-       samples.
-     o The audio codec must write 16 bits, but the touch chip writes
-       are 8 bits long.
-     o We need to be able to keep these configurations separate while
-       simultaneously active.
-
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-//#include <linux/sched.h>
-#include <linux/errno.h>
-#include <linux/interrupt.h>
-//#include <linux/ioport.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/spinlock.h>
-#include <linux/io.h>
-
-#include <asm/irq.h>
-#include <mach/hardware.h>
-
-#include <mach/ssp.h>
-
-//#define TALK
-
-#if defined (TALK)
-#define PRINTK(f...)		printk (f)
-#else
-#define PRINTK(f...)		do {} while (0)
-#endif
-
-#if defined (CONFIG_ARCH_LH7A400)
-# define CPLD_SPID		__REGP16(CPLD06_VIRT) /* SPI data */
-# define CPLD_SPIC		__REGP16(CPLD08_VIRT) /* SPI control */
-# define CPLD_SPIC_CS_CODEC	(1<<0)
-# define CPLD_SPIC_CS_TOUCH	(1<<1)
-# define CPLD_SPIC_WRITE	(0<<2)
-# define CPLD_SPIC_READ		(1<<2)
-# define CPLD_SPIC_DONE		(1<<3) /* r/o */
-# define CPLD_SPIC_LOAD		(1<<4)
-# define CPLD_SPIC_START	(1<<4)
-# define CPLD_SPIC_LOADED	(1<<5) /* r/o */
-#endif
-
-#define CPLD_SPI		__REGP16(CPLD0A_VIRT) /* SPI operation */
-#define CPLD_SPI_CS_EEPROM	(1<<3)
-#define CPLD_SPI_SCLK		(1<<2)
-#define CPLD_SPI_TX_SHIFT	(1)
-#define CPLD_SPI_TX		(1<<CPLD_SPI_TX_SHIFT)
-#define CPLD_SPI_RX_SHIFT	(0)
-#define CPLD_SPI_RX		(1<<CPLD_SPI_RX_SHIFT)
-
-/* *** FIXME: these timing values are substantially larger than the
-   *** chip requires. We may implement an nsleep () function. */
-#define T_SKH	1		/* Clock time high (us) */
-#define T_SKL	1		/* Clock time low (us) */
-#define T_CS	1		/* Minimum chip select low time (us)  */
-#define T_CSS	1		/* Minimum chip select setup time (us)  */
-#define T_DIS	1		/* Data setup time (us) */
-
-	 /* EEPROM SPI bits */
-#define P_START		(1<<9)
-#define P_WRITE		(1<<7)
-#define P_READ		(2<<7)
-#define P_ERASE		(3<<7)
-#define P_EWDS		(0<<7)
-#define P_WRAL		(0<<7)
-#define P_ERAL		(0<<7)
-#define P_EWEN		(0<<7)
-#define P_A_EWDS	(0<<5)
-#define P_A_WRAL	(1<<5)
-#define P_A_ERAL	(2<<5)
-#define P_A_EWEN	(3<<5)
-
-struct ssp_configuration {
-	int device;
-	int mode;
-	int speed;
-	int frame_size_write;
-	int frame_size_read;
-};
-
-static struct ssp_configuration ssp_configuration;
-static spinlock_t ssp_lock;
-
-static void enable_cs (void)
-{
-	switch (ssp_configuration.device) {
-	case DEVICE_EEPROM:
-		CPLD_SPI |= CPLD_SPI_CS_EEPROM;
-		break;
-	}
-	udelay (T_CSS);
-}
-
-static void disable_cs (void)
-{
-	switch (ssp_configuration.device) {
-	case DEVICE_EEPROM:
-		CPLD_SPI &= ~CPLD_SPI_CS_EEPROM;
-		break;
-	}
-	udelay (T_CS);
-}
-
-static void pulse_clock (void)
-{
-	CPLD_SPI |=  CPLD_SPI_SCLK;
-	udelay (T_SKH);
-	CPLD_SPI &= ~CPLD_SPI_SCLK;
-	udelay (T_SKL);
-}
-
-
-/* execute_spi_command
-
-   sends an spi command to a device.  It first sends cwrite bits from
-   v.  If cread is greater than zero it will read cread bits
-   (discarding the leading 0 bit) and return them.  If cread is less
-   than zero it will check for completetion status and return 0 on
-   success or -1 on timeout.  If cread is zero it does nothing other
-   than sending the command.
-
-   On the LPD7A400, we can only read or write multiples of 8 bits on
-   the codec and the touch screen device.  Here, we round up.
-
-*/
-
-static int execute_spi_command (int v, int cwrite, int cread)
-{
-	unsigned long l = 0;
-
-#if defined (CONFIG_MACH_LPD7A400)
-	/* The codec and touch devices cannot be bit-banged.  Instead,
-	 * the CPLD provides an eight-bit shift register and a crude
-	 * interface.  */
-	if (   ssp_configuration.device == DEVICE_CODEC
-	    || ssp_configuration.device == DEVICE_TOUCH) {
-		int select = 0;
-
-		PRINTK ("spi(%d %d.%d) 0x%04x",
-			ssp_configuration.device, cwrite, cread,
-			v);
-#if defined (TALK)
-		if (ssp_configuration.device == DEVICE_CODEC)
-			PRINTK (" 0x%03x -> %2d", v & 0x1ff, (v >> 9) & 0x7f);
-#endif
-		PRINTK ("\n");
-
-		if (ssp_configuration.device == DEVICE_CODEC)
-			select = CPLD_SPIC_CS_CODEC;
-		if (ssp_configuration.device == DEVICE_TOUCH)
-			select = CPLD_SPIC_CS_TOUCH;
-		if (cwrite) {
-			for (cwrite = (cwrite + 7)/8; cwrite-- > 0; ) {
-				CPLD_SPID = (v >> (8*cwrite)) & 0xff;
-				CPLD_SPIC = select | CPLD_SPIC_LOAD;
-				while (!(CPLD_SPIC & CPLD_SPIC_LOADED))
-					;
-				CPLD_SPIC = select;
-				while (!(CPLD_SPIC & CPLD_SPIC_DONE))
-					;
-			}
-			v = 0;
-		}
-		if (cread) {
-			mdelay (2);	/* *** FIXME: required by ads7843? */
-			v = 0;
-			for (cread = (cread + 7)/8; cread-- > 0;) {
-				CPLD_SPID = 0;
-				CPLD_SPIC = select | CPLD_SPIC_READ
-					| CPLD_SPIC_START;
-				while (!(CPLD_SPIC & CPLD_SPIC_LOADED))
-					;
-				CPLD_SPIC = select | CPLD_SPIC_READ;
-				while (!(CPLD_SPIC & CPLD_SPIC_DONE))
-					;
-				v = (v << 8) | CPLD_SPID;
-			}
-		}
-		return v;
-	}
-#endif
-
-	PRINTK ("spi(%d) 0x%04x -> 0x%x\r\n", ssp_configuration.device,
-		v & 0x1ff, (v >> 9) & 0x7f);
-
-	enable_cs ();
-
-	v <<= CPLD_SPI_TX_SHIFT; /* Correction for position of SPI_TX bit */
-	while (cwrite--) {
-		CPLD_SPI
-			= (CPLD_SPI & ~CPLD_SPI_TX)
-			| ((v >> cwrite) & CPLD_SPI_TX);
-		udelay (T_DIS);
-		pulse_clock ();
-	}
-
-	if (cread < 0) {
-		int delay = 10;
-		disable_cs ();
-		udelay (1);
-		enable_cs ();
-
-		l = -1;
-		do {
-			if (CPLD_SPI & CPLD_SPI_RX) {
-				l = 0;
-				break;
-			}
-		} while (udelay (1), --delay);
-	}
-	else
-	/* We pulse the clock before the data to skip the leading zero. */
-		while (cread-- > 0) {
-			pulse_clock ();
-			l = (l<<1)
-				| (((CPLD_SPI & CPLD_SPI_RX)
-				    >> CPLD_SPI_RX_SHIFT) & 0x1);
-		}
-
-	disable_cs ();
-	return l;
-}
-
-static int ssp_init (void)
-{
-	spin_lock_init (&ssp_lock);
-	memset (&ssp_configuration, 0, sizeof (ssp_configuration));
-	return 0;
-}
-
-
-/* ssp_chip_select
-
-   drops the chip select line for the CPLD shift-register controlled
-   devices.  It doesn't enable chip
-
-*/
-
-static void ssp_chip_select (int enable)
-{
-#if defined (CONFIG_MACH_LPD7A400)
-	int select;
-
-	if (ssp_configuration.device == DEVICE_CODEC)
-		select = CPLD_SPIC_CS_CODEC;
-	else if (ssp_configuration.device == DEVICE_TOUCH)
-		select = CPLD_SPIC_CS_TOUCH;
-	else
-		return;
-
-	if (enable)
-		CPLD_SPIC = select;
-	else
-		CPLD_SPIC = 0;
-#endif
-}
-
-static void ssp_acquire (void)
-{
-	spin_lock (&ssp_lock);
-}
-
-static void ssp_release (void)
-{
-	ssp_chip_select (0);	/* just in case */
-	spin_unlock (&ssp_lock);
-}
-
-static int ssp_configure (int device, int mode, int speed,
-			   int frame_size_write, int frame_size_read)
-{
-	ssp_configuration.device		= device;
-	ssp_configuration.mode			= mode;
-	ssp_configuration.speed			= speed;
-	ssp_configuration.frame_size_write	= frame_size_write;
-	ssp_configuration.frame_size_read	= frame_size_read;
-
-	return 0;
-}
-
-static int ssp_read (void)
-{
-	return execute_spi_command (0, 0, ssp_configuration.frame_size_read);
-}
-
-static int ssp_write (u16 data)
-{
-	execute_spi_command (data, ssp_configuration.frame_size_write, 0);
-	return 0;
-}
-
-static int ssp_write_read (u16 data)
-{
-	return execute_spi_command (data, ssp_configuration.frame_size_write,
-				    ssp_configuration.frame_size_read);
-}
-
-struct ssp_driver lh7a40x_cpld_ssp_driver = {
-	.init		= ssp_init,
-	.acquire	= ssp_acquire,
-	.release	= ssp_release,
-	.configure	= ssp_configure,
-	.chip_select	= ssp_chip_select,
-	.read		= ssp_read,
-	.write		= ssp_write,
-	.write_read	= ssp_write_read,
-};
-
-
-MODULE_AUTHOR("Marc Singer");
-MODULE_DESCRIPTION("LPD7A40X CPLD SPI driver");
-MODULE_LICENSE("GPL");