With most of the clock code under clock driver already, the low-level
register access code, and the init code for the same, is no longer
needed outside the clock driver. Thus, these can be moved under clock
driver also.
Signed-off-by: NTero Kristo <t-kristo@ti.com>

As most of the clock driver code has migrated, these are no longer used
for anything. Thus remove these APIs completely.
Signed-off-by: NTero Kristo <t-kristo@ti.com>

We should avoid exporting data from drivers, instead use an API for
registering the clock low level operations.
Signed-off-by: NTero Kristo <t-kristo@ti.com>

Cleanup the mess in clock.h by removing all definitions that are no longer
used for anything.
Signed-off-by: NTero Kristo <t-kristo@ti.com>

With the legacy clock data gone, this is no longer needed under platform,
so move it under the clock driver itself. Remove the exported clock driver
APIs as well, as these are not needed outside clock driver anymore.
Signed-off-by: NTero Kristo <t-kristo@ti.com>

clkdm_control is used to determine, whether clocks should trigger a
clockdomain transition when they are enabled/disabled. Keep this
functionality intact, but replace this with a clk_features flag
which can be initialized during boot if needed.
Signed-off-by: NTero Kristo <t-kristo@ti.com>

With the legacy clock support gone, OMAP3 generic DPLL code can now be
moved over to the clock driver also. A few un-unused clkoutx2 functions
are also removed at the same time.
Signed-off-by: NTero Kristo <t-kristo@ti.com>

The legacy support is wrong and dangerous, as it doesn't take any
OPPs into account and does not scale voltages. Switching mpurate should
be handled through cpufreq.
Signed-off-by: NTero Kristo <t-kristo@ti.com>

This is no longer needed in platform directory, as the legacy clock data
is gone, so move it under TI clock driver. Some static functions are
renamed also.
Signed-off-by: NTero Kristo <t-kristo@ti.com>

This only contains clksel tables that were used with the legacy clock data.
Now that legacy clock data is completely gone, this file can be removed
also.
Signed-off-by: NTero Kristo <t-kristo@ti.com>

The clksel clock type is no longer used for anything, it is rather
replaced with common clock divider code. Thus, remove the dead code
from kernel.
Signed-off-by: NTero Kristo <t-kristo@ti.com>

With the legacy clock support gone, the OMAP interface clock implementation
can be moved under the clock driver. Some temporary header file tweaks are
also needed to make this change work properly.
Signed-off-by: NTero Kristo <t-kristo@ti.com>

With the legacy clock support gone, the OMAP4 specific DPLL implementations
can be moved under the clock driver. Change some of the function prototypes
to be static at the same time, and remove some exports from the global TI
clock driver header.
Signed-off-by: NTero Kristo <t-kristo@ti.com>

As most of the clock driver support code is going to be moved under
drivers/clk/ti, an API for setting / getting the SoC specific clock
features is needed. This patch provides this API and changes the
existing code to use it.
Signed-off-by: NTero Kristo <t-kristo@ti.com>

Some of the TI clock providers will be converted to use syscon, thus
low-level regmap support is needed for the clock drivers also. This
patch adds this support, which can be enabled for individual drivers
in later patches.
Signed-off-by: NTero Kristo <t-kristo@ti.com>

Splits the clock provider init out of the PRM driver and moves it to
clock driver. This is needed so that once the PRCM drivers are separated,
they can logically just access the clock driver not needing to go through
common PRM code. This would be wrong in the case of control module for
example.
Signed-off-by: NTero Kristo <t-kristo@ti.com>

Remove omap_clocks_register and dummy_ck. The former is not used anymore
now that the statically defined clk stuctures are replaced with proper
descriptors and registered with the framework.

The dummy clock in arch/arm/mach-omap2 is made redundant by the OMAP3+
clock data that migrated to drivers/clk.

An additional benefit to this clean-up is removing the references to
clk-private.h which will be removed.

Cc: Paul Walmsley <paul@pwsan.com>
Cc: Tero Kristo <t-kristo@ti.com>
Acked-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NMichael Turquette <mturquette@linaro.org>

Moves clock state to struct clk_core, but takes care to change as little API as
possible.

struct clk_hw still has a pointer to a struct clk, which is the
implementation's per-user clk instance, for backwards compatibility.

The struct clk that clk_get_parent() returns isn't owned by the caller, but by
the clock implementation, so the former shouldn't call clk_put() on it.

Because some boards in mach-omap2 still register clocks statically, their clock
registration had to be updated to take into account that the clock information
is stored in struct clk_core now.
Signed-off-by: NTomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: NStephen Boyd <sboyd@codeaurora.org>
Tested-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NMichael Turquette <mturquette@linaro.org>
[mturquette@linaro.org: adapted clk_has_parent to struct clk_core
                        applied OMAP3+ DPLL fix from Tero & Tony]

Remove the function omap4_dpllmx_gatectrl_read() that is not used anywhere.

This was partially found by using a static code analysis program called cppcheck.
Signed-off-by: NRickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Signed-off-by: NTony Lindgren <tony@atomide.com>

DPLL4 can't be reprogrammed on OMAP3430 ES1.0 due to hardware limitation.
Currently, the code does runtime omap_rev() check to see the chip it is
being executed on, instead, change this to use clk_features flags.
This avoids need for runtime omap_rev() checks.
Signed-off-by: NTero Kristo <t-kristo@ti.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

Remove unused function prototype that was left by commit 149c09d3
("ARM: AM33xx: remove old clock data and link in new clock init code")
which removed the definition.
Signed-off-by: NJohan Hovold <johan@kernel.org>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Helps to get rid of some runtime cpu_is_x checks. This also allows eventual
migration of the code under clock driver.
Signed-off-by: NTero Kristo <t-kristo@ti.com>
Reviewed-by: NMike Turquette <mturquette@linaro.org>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

Currently DPLL code uses runtime cpu_is_343x checks to see if the DPLL
has freqsel fields in its control register or not. Instead, add a new
flag to the clk_features.flags and use this during runtime. Allows
eventual move of the DPLL code under clock driver.
Signed-off-by: NTero Kristo <t-kristo@ti.com>
Reviewed-by: NMike Turquette <mturquette@linaro.org>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

OMAP2 DPLL code for checking whether DPLL is in bypass mode now uses
clk_features data provided during boot. This avoids the need to use
cpu_is_X type checks runtime, and allows us to eventually move the
clock code under the clock driver.
Signed-off-by: NTero Kristo <t-kristo@ti.com>
Reviewed-by: NMike Turquette <mturquette@linaro.org>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

These are SoC specific and get their init values based on the SoC type.
Previously the values were hard coded within the DPLL clock code, but
having them inside the clock features avoids runtime cpu_is_X type checks.
Signed-off-by: NTero Kristo <t-kristo@ti.com>
Reviewed-by: NMike Turquette <mturquette@linaro.org>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

This shall be used to replace the cpu type checks around the clock code.
Actual bit values will be introduced in patches later.
Signed-off-by: NTero Kristo <t-kristo@ti.com>
Reviewed-by: NMike Turquette <mturquette@linaro.org>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

This clock type declaration is no longer used as all omap4+ SoC clock
data has been moved to DT, thus remove it.
Signed-off-by: NTero Kristo <t-kristo@ti.com>
Reviewed-by: NMike Turquette <mturquette@linaro.org>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

Cleans up the code a bit and is useful for clock data DT conversion.
Signed-off-by: NTero Kristo <t-kristo@ti.com>

OMAP2430 I2CHS modules require specific hardware ops to be used, so added
a new compatible string for this.
Signed-off-by: NTero Kristo <t-kristo@ti.com>

This patch adds support for omap2 type aplls, which have gating and
autoidle functionality.
Signed-off-by: NTero Kristo <t-kristo@ti.com>

OMAP2 has slightly different DPLL compared to later OMAP generations.
This patch adds support for the ti,omap2-dpll-core-clock and also adds
the bindings documentation.
Signed-off-by: NTero Kristo <t-kristo@ti.com>

Using indexed memmaps is required for isolating the actual memory access
from the clock code. Now, the driver providing the support for the clock IP
block provides the low level routines for reading/writing clock registers
also.
Signed-off-by: NTero Kristo <t-kristo@ti.com>
Acked-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

OMAP3 has interface clocks in addition to functional clocks, which
require special handling for the autoidle and idle status register
offsets mainly.
Signed-off-by: NTero Kristo <t-kristo@ti.com>
Acked-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

clk-33xx.c now contains the clock init functionality for am33xx, including
DT clock registration and adding of static clkdev entries.

This patch also moves the omap2_clk_enable_init_clocks declaration to
the driver include, as this is needed by the am33xx clock init code.
Signed-off-by: NTero Kristo <t-kristo@ti.com>
Tested-by: NNishanth Menon <nm@ti.com>
Acked-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

clk-44xx.c now contains the clock init functionality for omap4, including
DT clock registration and adding of static clkdev entries.
Signed-off-by: NTero Kristo <t-kristo@ti.com>
Tested-by: NNishanth Menon <nm@ti.com>
Acked-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

This is a multipurpose clock node, which contains support for multiple
sub-clocks. Uses basic composite clock type to implement the actual
functionality, and TI specific gate, mux and divider clocks.
Signed-off-by: NTero Kristo <t-kristo@ti.com>
Acked-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

The OMAP clock driver now supports DPLL clock type. This patch also
adds support for DT DPLL nodes.
Signed-off-by: NTero Kristo <t-kristo@ti.com>
Acked-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

Some drivers require direct access to the autoidle functionality of the
interface clocks. Added clock APIs for these, so that the drivers do not
need to access CM registers directly.
Signed-off-by: NTero Kristo <t-kristo@ti.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

The patch removes all the CK_* which were used to identify the family of
processors for which the individual clocks belonged to. Instead now separate
lists are created based on the family of processors.

Boot Tested on: OMAP4430, OMAP4460, Beagle-board, AM33X boards, OMAP2 boards.
Signed-off-by: NJ Keerthy <j-keerthy@ti.com>
Tested-by: NVaibhav Bedia <vaibhav.bedia@ti.com>
Tested-by: NJon Hunter <jon-hunter@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
[paul@pwsan.com: changed omap_clock_register_links() to omap_clocks_register();
 updated to apply]
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

DEFINE_STRUCT_CLK does not have the capability to set flags, define
DEFINE_STRUCT_CLK_FLAGS to handle flags. This is needed to add
SET_RATE_PARENT flag in statically defined lcd clock in am335x.
Signed-off-by: NAfzal Mohammed <afzal@ti.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>