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, 71 insertions, 28 deletions

diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c
index fc62fb5fc20b..c9122dd6ee8d 100644
--- a/arch/arm/plat-omap/clock.c
+++ b/arch/arm/plat-omap/clock.c
@@ -37,14 +37,16 @@ static struct clk_functions *arch_clock;
 int clk_enable(struct clk *clk)
 {
 	unsigned long flags;
-	int ret = 0;
+	int ret;
 
 	if (clk == NULL || IS_ERR(clk))
 		return -EINVAL;
 
+	if (!arch_clock || !arch_clock->clk_enable)
+		return -EINVAL;
+
 	spin_lock_irqsave(&clockfw_lock, flags);
-	if (arch_clock->clk_enable)
-		ret = arch_clock->clk_enable(clk);
+	ret = arch_clock->clk_enable(clk);
 	spin_unlock_irqrestore(&clockfw_lock, flags);
 
 	return ret;
@@ -58,6 +60,9 @@ void clk_disable(struct clk *clk)
 	if (clk == NULL || IS_ERR(clk))
 		return;
 
+	if (!arch_clock || !arch_clock->clk_disable)
+		return;
+
 	spin_lock_irqsave(&clockfw_lock, flags);
 	if (clk->usecount == 0) {
 		pr_err("Trying disable clock %s with 0 usecount\n",
@@ -66,8 +71,7 @@ void clk_disable(struct clk *clk)
 		goto out;
 	}
 
-	if (arch_clock->clk_disable)
-		arch_clock->clk_disable(clk);
+	arch_clock->clk_disable(clk);
 
 out:
 	spin_unlock_irqrestore(&clockfw_lock, flags);
@@ -77,7 +81,7 @@ EXPORT_SYMBOL(clk_disable);
 unsigned long clk_get_rate(struct clk *clk)
 {
 	unsigned long flags;
-	unsigned long ret = 0;
+	unsigned long ret;
 
 	if (clk == NULL || IS_ERR(clk))
 		return 0;
@@ -97,14 +101,16 @@ EXPORT_SYMBOL(clk_get_rate);
 long clk_round_rate(struct clk *clk, unsigned long rate)
 {
 	unsigned long flags;
-	long ret = 0;
+	long ret;
 
 	if (clk == NULL || IS_ERR(clk))
-		return ret;
+		return 0;
+
+	if (!arch_clock || !arch_clock->clk_round_rate)
+		return 0;
 
 	spin_lock_irqsave(&clockfw_lock, flags);
-	if (arch_clock->clk_round_rate)
-		ret = arch_clock->clk_round_rate(clk, rate);
+	ret = arch_clock->clk_round_rate(clk, rate);
 	spin_unlock_irqrestore(&clockfw_lock, flags);
 
 	return ret;
@@ -119,14 +125,13 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
 	if (clk == NULL || IS_ERR(clk))
 		return ret;
 
+	if (!arch_clock || !arch_clock->clk_set_rate)
+		return ret;
+
 	spin_lock_irqsave(&clockfw_lock, flags);
-	if (arch_clock->clk_set_rate)
-		ret = arch_clock->clk_set_rate(clk, rate);
-	if (ret == 0) {
-		if (clk->recalc)
-			clk->rate = clk->recalc(clk);
+	ret = arch_clock->clk_set_rate(clk, rate);
+	if (ret == 0)
 		propagate_rate(clk);
-	}
 	spin_unlock_irqrestore(&clockfw_lock, flags);
 
 	return ret;
@@ -141,15 +146,14 @@ int clk_set_parent(struct clk *clk, struct clk *parent)
 	if (clk == NULL || IS_ERR(clk) || parent == NULL || IS_ERR(parent))
 		return ret;
 
+	if (!arch_clock || !arch_clock->clk_set_parent)
+		return ret;
+
 	spin_lock_irqsave(&clockfw_lock, flags);
 	if (clk->usecount == 0) {
-		if (arch_clock->clk_set_parent)
-			ret = arch_clock->clk_set_parent(clk, parent);
-		if (ret == 0) {
-			if (clk->recalc)
-				clk->rate = clk->recalc(clk);
+		ret = arch_clock->clk_set_parent(clk, parent);
+		if (ret == 0)
 			propagate_rate(clk);
-		}
 	} else
 		ret = -EBUSY;
 	spin_unlock_irqrestore(&clockfw_lock, flags);
@@ -335,6 +339,38 @@ struct clk *omap_clk_get_by_name(const char *name)
 	return ret;
 }
 
+int omap_clk_enable_autoidle_all(void)
+{
+	struct clk *c;
+	unsigned long flags;
+
+	spin_lock_irqsave(&clockfw_lock, flags);
+
+	list_for_each_entry(c, &clocks, node)
+		if (c->ops->allow_idle)
+			c->ops->allow_idle(c);
+
+	spin_unlock_irqrestore(&clockfw_lock, flags);
+
+	return 0;
+}
+
+int omap_clk_disable_autoidle_all(void)
+{
+	struct clk *c;
+	unsigned long flags;
+
+	spin_lock_irqsave(&clockfw_lock, flags);
+
+	list_for_each_entry(c, &clocks, node)
+		if (c->ops->deny_idle)
+			c->ops->deny_idle(c);
+
+	spin_unlock_irqrestore(&clockfw_lock, flags);
+
+	return 0;
+}
+
 /*
  * Low level helpers
  */
@@ -367,9 +403,11 @@ void clk_init_cpufreq_table(struct cpufreq_frequency_table **table)
 {
 	unsigned long flags;
 
+	if (!arch_clock || !arch_clock->clk_init_cpufreq_table)
+		return;
+
 	spin_lock_irqsave(&clockfw_lock, flags);
-	if (arch_clock->clk_init_cpufreq_table)
-		arch_clock->clk_init_cpufreq_table(table);
+	arch_clock->clk_init_cpufreq_table(table);
 	spin_unlock_irqrestore(&clockfw_lock, flags);
 }
 
@@ -377,9 +415,11 @@ void clk_exit_cpufreq_table(struct cpufreq_frequency_table **table)
 {
 	unsigned long flags;
 
+	if (!arch_clock || !arch_clock->clk_exit_cpufreq_table)
+		return;
+
 	spin_lock_irqsave(&clockfw_lock, flags);
-	if (arch_clock->clk_exit_cpufreq_table)
-		arch_clock->clk_exit_cpufreq_table(table);
+	arch_clock->clk_exit_cpufreq_table(table);
 	spin_unlock_irqrestore(&clockfw_lock, flags);
 }
 #endif
@@ -397,6 +437,9 @@ static int __init clk_disable_unused(void)
 	struct clk *ck;
 	unsigned long flags;
 
+	if (!arch_clock || !arch_clock->clk_disable_unused)
+		return 0;
+
 	pr_info("clock: disabling unused clocks to save power\n");
 	list_for_each_entry(ck, &clocks, node) {
 		if (ck->ops == &clkops_null)
@@ -406,14 +449,14 @@ static int __init clk_disable_unused(void)
 			continue;
 
 		spin_lock_irqsave(&clockfw_lock, flags);
-		if (arch_clock->clk_disable_unused)
-			arch_clock->clk_disable_unused(ck);
+		arch_clock->clk_disable_unused(ck);
 		spin_unlock_irqrestore(&clockfw_lock, flags);
 	}
 
 	return 0;
 }
 late_initcall(clk_disable_unused);
+late_initcall(omap_clk_enable_autoidle_all);
 #endif
 
 int __init clk_init(struct clk_functions * custom_clocks)