ARM: omap2: simplify clock2xxx header

Only one of the functions in clock2xxx.h is used in a file
other than the one it is declared in, so remove the extra
declarations, and make the symbols static.

ARM: omap2: simplify clock2xxx header

Only one of the functions in clock2xxx.h is used in a file
other than the one it is declared in, so remove the extra
declarations, and make the symbols static.

Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

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treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

Based on 2 normalized pattern(s):

this program is free software you can redistribute it and or modify
it under the terms of th

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

Based on 2 normalized pattern(s):

this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation

this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation #

extracted by the scancode license scanner the SPDX license identifier

GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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clk: ti: dra7: disable the RNG and TIMER12 clkctrl clocks on HS devices

RNG and TIMER12 are reserved for secure side usage only on HS devices,
so disable their clkctrl clocks on HS SoCs also.

Signe

clk: ti: dra7: disable the RNG and TIMER12 clkctrl clocks on HS devices

RNG and TIMER12 are reserved for secure side usage only on HS devices,
so disable their clkctrl clocks on HS SoCs also.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Tested-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

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clk: ti: convert to use proper register definition for all accesses

Currently, TI clock driver uses an encapsulated struct that is cast into
a void pointer to store all register addresses. This can

clk: ti: convert to use proper register definition for all accesses

Currently, TI clock driver uses an encapsulated struct that is cast into
a void pointer to store all register addresses. This can be considered
as rather nasty hackery, and prevents from expanding the register
address field also. Instead, replace all the code to use proper struct
in place for this, which contains all the previously used data.

This patch is rather large as it is touching multiple files, but this
can't be split up as we need to avoid any boot breakage.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>

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clk: ti: move omap2_init_clk_clkdm under TI clock driver

This is not needed outside the driver, so move it inside it and remove
the prototype from the public header also.

Signed-off-by: Tero Kristo

clk: ti: move omap2_init_clk_clkdm under TI clock driver

This is not needed outside the driver, so move it inside it and remove
the prototype from the public header also.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>

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clk: ti: add clkdm_lookup to the exported functions

This will be needed to move some additional clockdomain functionality
under clock driver.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by:

clk: ti: add clkdm_lookup to the exported functions

This will be needed to move some additional clockdomain functionality
under clock driver.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>

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ARM: OMAP: clock: Remove unused mpurate cmdline option

The 'mpurate' option, historically used for specifying an initial
MPU rate at boot, no longer has any effect due to the supporting
code being r

ARM: OMAP: clock: Remove unused mpurate cmdline option

The 'mpurate' option, historically used for specifying an initial
MPU rate at boot, no longer has any effect due to the supporting
code being removed as it was 'wrong and dangerous' [1].

This patch removes the remaining dead code associated with the
__setup macros to avoid confusion and reduce bloat.

[1] https://patchwork.kernel.org/patch/5954631/

Signed-off-by: Andrew Murray <amurray@embedded-bits.co.uk>
Acked-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Tony Lindgren <tony@atomide.com>

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clk: ti: omap5+: dpll: implement errata i810

Errata i810 states that DPLL controller can get stuck while transitioning
to a power saving state, while its M/N ratio is being re-programmed.

As a work

clk: ti: omap5+: dpll: implement errata i810

Errata i810 states that DPLL controller can get stuck while transitioning
to a power saving state, while its M/N ratio is being re-programmed.

As a workaround, before re-programming the M/N ratio, SW has to ensure
the DPLL cannot start an idle state transition. SW can disable DPLL
idling by setting the DPLL AUTO_DPLL_MODE=0 or keeping a clock request
active by setting a dependent clock domain in SW_WKUP.

This errata impacts OMAP5 and DRA7 chips, so enable the errata for these.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

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ARM: OMAP2+: Include clk.h

These files use the consumer API, so include clk.h explicitly.

Acked-by: Tero Kristo <t-kristo@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Stephen Boyd <s

ARM: OMAP2+: Include clk.h

These files use the consumer API, so include clk.h explicitly.

Acked-by: Tero Kristo <t-kristo@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

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clk: ti: move low-level access and init code under clock driver

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 long

clk: ti: move low-level access and init code under clock driver

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: Tero Kristo <t-kristo@ti.com>

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ARM: OMAP2+: clock: remove legacy omap2_clk_readl/writel APIs

As most of the clock driver code has migrated, these are no longer used
for anything. Thus remove these APIs completely.

Signed-off-by:

ARM: OMAP2+: clock: remove legacy omap2_clk_readl/writel APIs

As most of the clock driver code has migrated, these are no longer used
for anything. Thus remove these APIs completely.

Signed-off-by: Tero Kristo <t-kristo@ti.com>

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clk: ti: remove exported ll_ops struct, instead add an API for registration

We should avoid exporting data from drivers, instead use an API for
registering the clock low level operations.

Signed-of

clk: ti: remove exported ll_ops struct, instead add an API for registration

We should avoid exporting data from drivers, instead use an API for
registering the clock low level operations.

Signed-off-by: Tero Kristo <t-kristo@ti.com>

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clk: ti: clkdm: move clkdm gate clock support code to clock driver

With the legacy clock data gone, this is no longer needed under platform,
so move it under the clock driver itself. Remove the expo

clk: ti: clkdm: move clkdm gate clock support code to clock driver

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: Tero Kristo <t-kristo@ti.com>

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clk: ti: dflt: move support for default gate clock to clock driver

With the legacy support gone, OMAP2+ default gate clock can be moved
under clock driver. Create a new file for the purpose, and cle

clk: ti: dflt: move support for default gate clock to clock driver

With the legacy support gone, OMAP2+ default gate clock can be moved
under clock driver. Create a new file for the purpose, and clean-up
the header exports a bit as some clock APIs are no longer needed
outside clock driver itself.

Signed-off-by: Tero Kristo <t-kristo@ti.com>

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ARM: OMAP2+: clock: remove clkdm_control static boolean from code

clkdm_control is used to determine, whether clocks should trigger a
clockdomain transition when they are enabled/disabled. Keep this

ARM: OMAP2+: clock: remove clkdm_control static boolean from code

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: Tero Kristo <t-kristo@ti.com>

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ARM: OMAP2+: clock: add support for specific CM ops to ti_clk_ll_ops

Clock driver requires access to some CM API functions once the code
is being moved under the clock driver from the platform direc

ARM: OMAP2+: clock: add support for specific CM ops to ti_clk_ll_ops

Clock driver requires access to some CM API functions once the code
is being moved under the clock driver from the platform directory.
Gate type clock requires access to cm_wait_module_ready and
cm_split_idlest_reg functions, which are both used for waiting until
the module being clocked has been successfully activated. These CM
APIs are now exported through the ti_clk_ll_ops struct.

Signed-off-by: Tero Kristo <t-kristo@ti.com>

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ARM: OMAP2+: clock: add support for clkdm ops to the low level clk ops

Clock driver requires access to certain clockdomain handling ops once
the code is being moved over under clock driver. Example

ARM: OMAP2+: clock: add support for clkdm ops to the low level clk ops

Clock driver requires access to certain clockdomain handling ops once
the code is being moved over under clock driver. Example of this is
clk_enable / clk_disable under omap3 DPLL code. The required clkdm
APIs are now exported through the ti_clk_ll_ops struct.

Signed-off-by: Tero Kristo <t-kristo@ti.com>

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ARM: OMAP2+: clock: remove support for legacy mpurate command line param

The legacy support is wrong and dangerous, as it doesn't take any
OPPs into account and does not scale voltages. Switching mp

ARM: OMAP2+: clock: remove support for legacy mpurate command line param

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: Tero Kristo <t-kristo@ti.com>

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clk: ti: move omap2_clk_enable_init_clocks under clock driver

This is no longer used outside clock driver, so move it under the driver
and remove the export for it from the global header file.

Sign

clk: ti: move omap2_clk_enable_init_clocks under clock driver

This is no longer used outside clock driver, so move it under the driver
and remove the export for it from the global header file.

Signed-off-by: Tero Kristo <t-kristo@ti.com>

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clk: ti: autoidle: move generic autoidle handling code to clock driver

This is no longer needed in platform directory, as the legacy clock data
is gone, so move it under TI clock driver. Some static

clk: ti: autoidle: move generic autoidle handling code to clock driver

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: Tero Kristo <t-kristo@ti.com>

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ARM: OMAP2+: clock: export driver API to setup/get clock features

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 cl

ARM: OMAP2+: clock: export driver API to setup/get clock features

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: Tero Kristo <t-kristo@ti.com>

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ARM: OMAP2+: clock: add low-level support for regmap

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 ad

ARM: OMAP2+: clock: add low-level support for regmap

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: Tero Kristo <t-kristo@ti.com>

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ARM: OMAP2+: clock: move clock provider infrastructure to clock driver

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

ARM: OMAP2+: clock: move clock provider infrastructure to clock driver

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: Tero Kristo <t-kristo@ti.com>

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arm: omap2+ remove dead clock code

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 reg

arm: omap2+ remove dead clock code

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: Tony Lindgren <tony@atomide.com>
Signed-off-by: Michael Turquette <mturquette@linaro.org>

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ARM: OMAP2+: Fix error handling for omap2_clk_enable_init_clocks

We need to check if we got the clock before trying to do anything
with it. Otherwise we will get something like this:

Unable to hand

ARM: OMAP2+: Fix error handling for omap2_clk_enable_init_clocks

We need to check if we got the clock before trying to do anything
with it. Otherwise we will get something like this:

Unable to handle kernel paging request at virtual address fffffffe
...
[<c04bef78>] (clk_prepare) from [<c00338a4>] (omap2_clk_enable_init_clocks+0x50/0x8)
[<c00338a4>] (omap2_clk_enable_init_clocks) from [<c0876838>] (dm816x_dt_clk_init+0)
...

Let's add check for the clock and WARN if the init clock was not
found.

Cc: Brian Hutchinson <b.hutchman@gmail.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Tero Kristo <t-kristo@ti.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

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