This patch enables clocks to be specified from Device Tree via phandles
to the "prcc-kernel-clock" node.
Acked-by: NMike Turquette <mturquette@linaro.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

This patch enables clocks to be specified from Device Tree via phandles
to the "prcc-periph-clock" node.
Acked-by: NMike Turquette <mturquette@linaro.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

This patch enables clocks to be specified from Device Tree via phandles
to the "prcmu-clock" node.
Acked-by: NMike Turquette <mturquette@linaro.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

PRCC (peripheral and kernel) clocks are specified using a property tuple
<&phandle base bit>, where 'base' is the peripheral (1, 2, 3, 5 or 6),
and bit is read-in value into that peripheral stipulated by the hardware
specification.
Acked-by: NMike Turquette <mturquette@linaro.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

The functional components will be added on a per-clock basis.
Acked-by: NMike Turquette <mturquette@linaro.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

Here we're using the old clock initialisation function as a template.
It's necessary to remove all of the clk_register_clkdev() calls as
they don't make sense when booting with Device Tree.

Cc: Mike Turquette <mturquette@linaro.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

There is no mention of the PRCMU_BML8580CLK in any of the Design
Specifications for the chips supported in Mainline. In fact, where it
is incorrectly used in the u8540 clock definition driver it would
have the side effect of using the incorrect clock management address
([PRCM_BML8580CLK_MGT] 0x108 instead of the correct value 0x04C).
Acked-by: NMike Turquette <mturquette@linaro.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

First clocks definition version of PRCMU and PRCC clocks for u8540 platform
Signed-off-by: NPhilippe Begnic <philippe.begnic@st.com>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

Align on u8500 version, pass clock base address in clk_init functions
for u8540 and u9540.
Signed-off-by: NLinus Walleij <linus.walleij@stericsson.com>
Signed-off-by: NPhilippe Begnic <philippe.begnic@st.com>
Reviewed-by: NUlf Hansson <ulf.hansson@linaro.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

Fix clk_reg_sysctrl() to set main clock registers of new struct
clk_sysctrl even if the registered clock has no parents.

This fixes an issue where "ulpclk" was registered with all clk->reg_*
fields uninitialized, causing a -EINVAL error from clk_prepare().
Signed-off-by: NFabio Baltieri <fabio.baltieri@linaro.org>
Acked-by: NUlf Hansson <ulf.hansson@linaro.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

First Ethernet device has a ".0" appended onto the device name. It
appears that we need this in order to obtain the correct clock.

Without this fix Ethernet does not function on Ux500 devices, which is a
regression.

Cc: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>
[mturquette@linaro.org: improved changelog]

Change soc-audio related clk_register_clkdev() device names to reflect
the ones actually used in current snd-soc-mop500 and ab8500-codec
drivers.

Cc: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: NFabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

As reported by Rob Herring[1] there were some mismatched types between
drivers/clk/ux500/clk.h and the corresponding function definitions:

drivers/clk/ux500/clk-prcc.c:145:13: error: conflicting types for 'clk_reg_prcc_pclk'
drivers/clk/ux500/clk-prcc.c:155:13: error: conflicting types for 'clk_reg_prcc_kclk'

[1] http://article.gmane.org/gmane.linux.ports.arm.kernel/232246Signed-off-by: NMike Turquette <mturquette@linaro.org>
Cc: Rob Herring <robherring2@gmail.com>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Linus Walleij <linus.walleij@linaro.org>

The patch setups the first version of the clock tree for ab850x, which
is used by u8500 platforms. Mainly sysctrl clocks are used.
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
Tested-by: NFabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

The abx500 sysctrl clocks are using the ab8500 sysctrl driver to
modify the clock hardware. Sysctrl clocks are represented by a
ab8500 sysctrl register and with a corresponding bitmask.

The sysctrl clocks are slow path clocks, which means clk_prepare
and clk_unprepare will be used to gate|ungate these clocks.
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

This removes <mach/hardware.h> and <mach/db8500-regs.h>
from the Ux500, merging them into the local include
"db8500-regs.h" in mach-ux500. There is some impact
outside the ux500 machine, but most of it is dealt with
in earlier patches.

Contains portions of a clean-up patch from Arnd Bergmann.

Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: NMike Turquette <mturquette@linaro.org>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

The ux500 clock driver was including <mach/db8500-regs.h>
which will not work when building for multiplatform support
since <mach/*> is going away.

Pass the base adresses in the init call instead.

Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Mike Turquette <mturquette@linaro.org>
Acked-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NUlf Hansson <ulf.hansson@linaro.org>
Acked-by: NMike Turquette <mturquette@linaro.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

In clk_reg_prcmu(), clk->hw.init field is assigned with a
reference local to clk_reg_prcmu() function.

This patch replaces references to clk->hw.init with calls
to __clk_get_name when called after clock registration.

This patch applies on top of v3.9-rc4.
Signed-off-by: NMaxime Coquelin <maxime.coquelin@st.com>
Acked-by: NUlf Hansson <ulf.hansson@linaro.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>
[mturquette@linaro.org: resolved trivial merge issues]

To be able to gate unused prcmu clocks from the clk_disable_unused sequence,
clk-prcmu now implements the is_prepared callback.
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

In the case of some of the ux500 platforms, an Ethernet chip is
placed on an extended bus which is traditionally used as a NAND
flash chip placeholder. The p3_pclk0 clock is used to control it,
so we are required to provide and easy way to access it from the
SMSC911x driver. We do this using an alias provided by this patch.
Acked-by: NMike Turquette <mturquette@linaro.org>
Acked-by: NUlf Hansson <ulf.hansson@linaro.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

The FMSC clock is traditionally used for NAND flash devices when
used on the ux500 series platforms. This patch makes it searchable
during a clock-name search.
Acked-by: NMike Turquette <mturquette@linaro.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

CONFIG_HOTPLUG is going away as an option.  As a result, the __dev*
markings need to be removed.

This change removes the use of __devinit, __devexit_p, __devinitdata,
__devinitconst, and __devexit from these drivers.

Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.

Cc: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This fixes a bit error in the U8500 clock implementation: the
unused p2_pclk12 registered at bit 12 in periphereral group 6
was defined as using bit 11 rather than bit 12.

When walking over and disabling the unused clocks in the tree
at late init time, p2_pclk12 was disabled, by effectively
clearing the but for p2_pclk11 instead of bit 12 as it should
have, thus disabling gpio block 6 and 7.
Reported-by: NLee Jones <lee.jones@linaro.org>
Acked-by: NUlf Hansson <ulf.hansson@linaro.org>
Cc: Philippe Begnic <philippe.begnic@st.com>
Cc: stable@kernel.org
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

The abx500 clock driver is a platform driver which will be initialized
during arch init. The platform device shall be added from the ab-core
driver as a mfd child device to maintain correct boot sequence.

Depending on what ab version we use, different clock definitions will
be added.
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
Reviewed-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
Acked-by: NMike Turquette <mturquette@ti.com>
Signed-off-by: NLinus Walleij <linus.walleij@stericsson.com>

At the same time the prcc bit for the kclk is corrected to
bit 8 instead of 3.
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Acked-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Acked-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Acked-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Acked-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Acked-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

At the same time the prcc bit for the kclk is corrected to
bit 8 instead of 3.
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Acked-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Acked-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Acked-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Acked-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Acked-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

The new armss clk is a prcmu_scalable_rate clk which represents
the ARMSS clk. This then makes it possible to convert the smp_twd
clk to a fixed factor clock type, using a fixed divider of 2 and
with the armss clk as parent.
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

The prcmu_scalable_rate clock can change rate but is not gateable.
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

The ux500 clock driver file named u8500_clk.c does not compile
if it loose implicit dependencies to <mach/db8500-regs.h>
(I have no clue what files will include this) which manifests
itself as I'm experimenting with SPARSE_IRQ so make the
dependency explicit.

Cc: Mike Turquette <mturquette@linaro.org>
Acked-by: NUlf Hansson <ulf.hansson@linaro.org>
Acked-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>