sh: clkfwk: Handle clk_get_sys() returning an ERR_PTR.

clk_get() needs to also perform an IS_ERR() check to see whether
clk_get_sys() failed or not.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

sh: clkfwk: Wire up clk_get_sys() support.

This stubs in clk_get_sys() from the ARM clkdev implementation.
Tentatively conver the clk_get() lookup code to use this, and once the
rest of the in-tree

sh: clkfwk: Wire up clk_get_sys() support.

This stubs in clk_get_sys() from the ARM clkdev implementation.
Tentatively conver the clk_get() lookup code to use this, and once the
rest of the in-tree users are happy with this, it can replace the
fallback lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

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sh: clkfwk: Kill off clk_recalc_rate().

The only user for this is the SH-Mobile r_clk, which is now added as a
root clock and can be kicked via propagate_rate() as usual. Given that,
there is no lon

sh: clkfwk: Kill off clk_recalc_rate().

The only user for this is the SH-Mobile r_clk, which is now added as a
root clock and can be kicked via propagate_rate() as usual. Given that,
there is no longer any need for the special clk_recalc_rate(), so we kill
it off.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

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sh: clkfwk: Improve the generic clk_set_parent() implementation.

This causes the generic clk_set_parent() implementation to be a bit more
intelligent. A clk_reparent() is added to move the clock ove

sh: clkfwk: Improve the generic clk_set_parent() implementation.

This causes the generic clk_set_parent() implementation to be a bit more
intelligent. A clk_reparent() is added to move the clock over to the new
parent's sibling list, which then allows the generic rate propagation
code to succeed. This also becomes a nop if the new and old parents are
unchanged.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

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sh: clkfwk: Fix up the clk_enable() error path.

There are a couple of instances where a clk_enable() can fail, which the
SH-Mobile code presently handles, but doesn't get reported all the way
back u

sh: clkfwk: Fix up the clk_enable() error path.

There are a couple of instances where a clk_enable() can fail, which the
SH-Mobile code presently handles, but doesn't get reported all the way
back up. This fixes up the return type so the errors make it all the way
down to the drivers.

Additionally, we now also error out properly if the parent enable fails.
Prep work for aggressively turning off unused clocks on boot.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

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sh: clkfwk: Consolidate the ALWAYS_ENABLED / NEEDS_INIT mess.

There is no real distinction here in behaviour, either a clock needs to
be enabled on initialiation or not. The ALWAYS_ENABLED flag was

sh: clkfwk: Consolidate the ALWAYS_ENABLED / NEEDS_INIT mess.

There is no real distinction here in behaviour, either a clock needs to
be enabled on initialiation or not. The ALWAYS_ENABLED flag was always
intended to only apply to clocks that were physically always on and could
simply not be disabled at all from software. Unfortunately over time this
was abused and the meaning became a bit blurry.

So, we kill off both of all of those paths now, as well as the newer
NEEDS_INIT flag, and consolidate on a CLK_ENABLE_ON_INIT. Clocks that
need to be enabled on initialization can set this, and it will purposely
enable them and bump the refcount up.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

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sh: clkfwk: refactor rate propagation.

This resyncs the rate propagation strategy with the scheme used by the
OMAP clock framework. Child clocks are tracked on a list under each
parent and propagati

sh: clkfwk: refactor rate propagation.

This resyncs the rate propagation strategy with the scheme used by the
OMAP clock framework. Child clocks are tracked on a list under each
parent and propagation happens there specifically rather than constantly
iterating over the global clock list.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

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sh: clkfwk: Add a followparent_recalc() helper.

This adds a followparent_recalc() helper for clocks that just follow the
parent's rate. Switch over the few CPUs that use this scheme for some of
thei

sh: clkfwk: Add a followparent_recalc() helper.

This adds a followparent_recalc() helper for clocks that just follow the
parent's rate. Switch over the few CPUs that use this scheme for some of
their clocks.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

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sh: clkfwk: Make recalc return an unsigned long.

This is prep work for cleaning up some of the rate propagation bits.
Trivial conversion.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Merge commit 'v2.6.30-rc5' into next

sh: clock framework update, fix count and kill off kref

This patch updates the clock framework use count code.
With this patch the enable() and disable() callbacks
only get called when counting from

sh: clock framework update, fix count and kill off kref

This patch updates the clock framework use count code.
With this patch the enable() and disable() callbacks
only get called when counting from and to zero.
While at it the kref stuff gets replaced with an int.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

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sh: call clock framework init() callback once

Make sure that clk->ops->init() only gets called once in
the case of CLK_ALWAYS_ENABLED. Without this patch the
init() callback may be called multiple t

sh: call clock framework init() callback once

Make sure that clk->ops->init() only gets called once in
the case of CLK_ALWAYS_ENABLED. Without this patch the
init() callback may be called multiple times.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

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Merge branch 'fix/pcm-jiffies-check' into fix/asoc

Merge branch 'linus' into x86/mm

Merge reason: refresh the topic: there's been 290 non-merges commits upstream
to arch/x86 alone.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

Merge branch 'for-2.6.30' into for-2.6.31

Merge commit 'v2.6.30-rc1' into sched/urgent

Merge reason: update to latest upstream to queue up fix

Signed-off-by: Ingo Molnar <mingo@elte.hu>

Merge branch 'linus' into tracing/core

Merge reason: update to upstream tracing facilities

Signed-off-by: Ingo Molnar <mingo@elte.hu>

Merge branch 'linus' into tracing/hw-branch-tracing

Merge reason: update to latest tracing and ptrace APIs

Signed-off-by: Ingo Molnar <mingo@elte.hu>

Merge branch 'linus' into core/softlockup

Conflicts:
kernel/sysctl.c

Merge branch 'linus' into perfcounters/core-v2

Merge reason: we have gathered quite a few conflicts, need to merge upstream

Conflicts:
arch/powerpc/kernel/Makefile
arch/x86/ia32/ia32entry.S
arch

Merge branch 'linus' into perfcounters/core-v2

Merge reason: we have gathered quite a few conflicts, need to merge upstream

Conflicts:
arch/powerpc/kernel/Makefile
arch/x86/ia32/ia32entry.S
arch/x86/include/asm/hardirq.h
arch/x86/include/asm/unistd_32.h
arch/x86/include/asm/unistd_64.h
arch/x86/kernel/cpu/common.c
arch/x86/kernel/irq.c
arch/x86/kernel/syscall_table_32.S
arch/x86/mm/iomap_32.c
include/linux/sched.h
kernel/Makefile

Signed-off-by: Ingo Molnar <mingo@elte.hu>

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Merge branch 'linus' into irq/threaded

Conflicts:
include/linux/irq.h
kernel/irq/handle.c

Merge branch 'linus' into release

Conflicts:
arch/x86/kernel/cpu/cpufreq/longhaul.c

Signed-off-by: Len Brown <len.brown@intel.com>

Merge branch 'linus' into x86/urgent

Merge needed to go past commit 7ca43e756 (mm: use debug_kmap_atomic)
and fix it.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

Merge branch 'linus' into locking-for-linus

Conflicts:
lib/Kconfig.debug

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