ipq806x: update target to v3.18

Patches in the ipq806x/patches folder were out of tree in v3.14. The
newest patch at the time was from June, so we can safely assume that
either the patches have been merged, or they have been rejected for
a good reason. If patches are seen missing, we'll cherry-pick them
on a per-needed basis.

This new kernel have been tested on AP148, which seems to works fine.

Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>

SVN-Revision: 44386

1 files changed, 0 insertions, 146 deletions

diff --git a/target/linux/ipq806x/patches/0126-clk-Add-safe-switch-hook.patch b/target/linux/ipq806x/patches/0126-clk-Add-safe-switch-hook.patch
deleted file mode 100644
index a78319ff52..0000000000
--- a/target/linux/ipq806x/patches/0126-clk-Add-safe-switch-hook.patch
+++ /dev/null
@@ -1,146 +0,0 @@
-From b7b3ceec506179d59e46e3a8ea8b370872cc7fcb Mon Sep 17 00:00:00 2001
-From: Stephen Boyd <sboyd@codeaurora.org>
-Date: Mon, 31 Mar 2014 16:52:29 -0700
-Subject: [PATCH 126/182] clk: Add safe switch hook
-
-Sometimes clocks can't accept their parent source turning off
-while the source is reprogrammed to a different rate. Most
-notably CPU clocks require a way to switch away from the current
-PLL they're running on, reprogram that PLL to a new rate, and
-then switch back to the PLL with the new rate once they're done.
-Add a hook that drivers can implement allowing them to return a
-'safe parent' that they can switch their parent to while the
-upstream source is reprogrammed to support this.
-
-Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
----
- drivers/clk/clk.c            |   53 ++++++++++++++++++++++++++++++++++++------
- include/linux/clk-private.h  |    2 ++
- include/linux/clk-provider.h |    1 +
- 3 files changed, 49 insertions(+), 7 deletions(-)
-
---- a/drivers/clk/clk.c
-+++ b/drivers/clk/clk.c
-@@ -1356,6 +1356,7 @@ static void clk_calc_subtree(struct clk
- 			     struct clk *new_parent, u8 p_index)
- {
- 	struct clk *child;
-+	struct clk *parent;
- 
- 	clk->new_rate = new_rate;
- 	clk->new_parent = new_parent;
-@@ -1365,6 +1366,17 @@ static void clk_calc_subtree(struct clk
- 	if (new_parent && new_parent != clk->parent)
- 		new_parent->new_child = clk;
- 
-+	if (clk->ops->get_safe_parent) {
-+		parent = clk->ops->get_safe_parent(clk->hw);
-+		if (parent) {
-+			p_index = clk_fetch_parent_index(clk, parent);
-+			clk->safe_parent_index = p_index;
-+			clk->safe_parent = parent;
-+		}
-+	} else {
-+		clk->safe_parent = NULL;
-+	}
-+
- 	hlist_for_each_entry(child, &clk->children, child_node) {
- 		if (child->ops->recalc_rate)
- 			child->new_rate = child->ops->recalc_rate(child->hw, new_rate);
-@@ -1450,14 +1462,42 @@ out:
- static struct clk *clk_propagate_rate_change(struct clk *clk, unsigned long event)
- {
- 	struct clk *child, *tmp_clk, *fail_clk = NULL;
-+	struct clk *old_parent;
- 	int ret = NOTIFY_DONE;
- 
--	if (clk->rate == clk->new_rate)
-+	if (clk->rate == clk->new_rate && event != POST_RATE_CHANGE)
- 		return NULL;
- 
-+	switch (event) {
-+	case PRE_RATE_CHANGE:
-+		if (clk->safe_parent)
-+			clk->ops->set_parent(clk->hw, clk->safe_parent_index);
-+		break;
-+	case POST_RATE_CHANGE:
-+		if (clk->safe_parent) {
-+			old_parent = __clk_set_parent_before(clk,
-+							     clk->new_parent);
-+			if (clk->ops->set_rate_and_parent) {
-+				clk->ops->set_rate_and_parent(clk->hw,
-+						clk->new_rate,
-+						clk->new_parent ?
-+						clk->new_parent->rate : 0,
-+						clk->new_parent_index);
-+			} else if (clk->ops->set_parent) {
-+				clk->ops->set_parent(clk->hw,
-+						clk->new_parent_index);
-+			}
-+			__clk_set_parent_after(clk, clk->new_parent,
-+					       old_parent);
-+		}
-+		break;
-+	}
-+
- 	if (clk->notifier_count) {
--		ret = __clk_notify(clk, event, clk->rate, clk->new_rate);
--		if (ret & NOTIFY_STOP_MASK)
-+		if (event != POST_RATE_CHANGE)
-+			ret = __clk_notify(clk, event, clk->rate,
-+					   clk->new_rate);
-+		if (ret & NOTIFY_STOP_MASK && event != POST_RATE_CHANGE)
- 			fail_clk = clk;
- 	}
- 
-@@ -1500,7 +1540,8 @@ static void clk_change_rate(struct clk *
- 	else if (clk->parent)
- 		best_parent_rate = clk->parent->rate;
- 
--	if (clk->new_parent && clk->new_parent != clk->parent) {
-+	if (clk->new_parent && clk->new_parent != clk->parent &&
-+			!clk->safe_parent) {
- 		old_parent = __clk_set_parent_before(clk, clk->new_parent);
- 
- 		if (clk->ops->set_rate_and_parent) {
-@@ -1523,9 +1564,6 @@ static void clk_change_rate(struct clk *
- 	else
- 		clk->rate = best_parent_rate;
- 
--	if (clk->notifier_count && old_rate != clk->rate)
--		__clk_notify(clk, POST_RATE_CHANGE, old_rate, clk->rate);
--
- 	/*
- 	 * Use safe iteration, as change_rate can actually swap parents
- 	 * for certain clock types.
-@@ -1603,6 +1641,7 @@ int clk_set_rate(struct clk *clk, unsign
- 	/* change the rates */
- 	clk_change_rate(top);
- 
-+	clk_propagate_rate_change(top, POST_RATE_CHANGE);
- out:
- 	clk_prepare_unlock();
- 
---- a/include/linux/clk-private.h
-+++ b/include/linux/clk-private.h
-@@ -38,8 +38,10 @@ struct clk {
- 	struct clk		**parents;
- 	u8			num_parents;
- 	u8			new_parent_index;
-+	u8			safe_parent_index;
- 	unsigned long		rate;
- 	unsigned long		new_rate;
-+	struct clk		*safe_parent;
- 	struct clk		*new_parent;
- 	struct clk		*new_child;
- 	unsigned long		flags;
---- a/include/linux/clk-provider.h
-+++ b/include/linux/clk-provider.h
-@@ -157,6 +157,7 @@ struct clk_ops {
- 					struct clk **best_parent_clk);
- 	int		(*set_parent)(struct clk_hw *hw, u8 index);
- 	u8		(*get_parent)(struct clk_hw *hw);
-+	struct clk	*(*get_safe_parent)(struct clk_hw *hw);
- 	int		(*set_rate)(struct clk_hw *hw, unsigned long,
- 				    unsigned long);
- 	int		(*set_rate_and_parent)(struct clk_hw *hw,