clk: ti: Drop legacy compatibility clocks for dra7

We no longer have users for the compatibility clocks and we can drop them.
These are old duplicate clocks for what we using.

Depends-on: 31aa7056b

clk: ti: Drop legacy compatibility clocks for dra7

We no longer have users for the compatibility clocks and we can drop them.
These are old duplicate clocks for what we using.

Depends-on: 31aa7056bbec ("ARM: dts: Don't use legacy clock defines for dra7 clkctrl")
Depends-on: 9206a3af4fc0 ("clk: ti: Move dra7 clock devices out of the legacy section")
Cc: [email protected]
Cc: Rob Herring <[email protected]>
Signed-off-by: Tony Lindgren <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Acked-by: Rob Herring <[email protected]>
Signed-off-by: Stephen Boyd <[email protected]>

show more ...

clk: ti: Drop legacy compatibility clocks for am4

We no longer have users for the compatibility clocks and we can drop them.
These are old duplicate clocks for what we using.

Cc: [email protected]

clk: ti: Drop legacy compatibility clocks for am4

We no longer have users for the compatibility clocks and we can drop them.
These are old duplicate clocks for what we using.

Cc: [email protected]
Cc: Rob Herring <[email protected]>
Signed-off-by: Tony Lindgren <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Acked-by: Rob Herring <[email protected]>
Signed-off-by: Stephen Boyd <[email protected]>

show more ...

clk: ti: Drop legacy compatibility clocks for am3

We no longer have users for the compatibility clocks and we can drop them.
These are old duplicate clocks for what we using.

Cc: [email protected]

clk: ti: Drop legacy compatibility clocks for am3

We no longer have users for the compatibility clocks and we can drop them.
These are old duplicate clocks for what we using.

Cc: [email protected]
Cc: Rob Herring <[email protected]>
Signed-off-by: Tony Lindgren <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Acked-by: Rob Herring <[email protected]>
Signed-off-by: Stephen Boyd <[email protected]>

show more ...

clk: ti: dra7xx: rename existing clkctrl data as compat data

Rename the existing clkctrl data in preparation of upcoming clkdm
based split for it. Once the DT data has transitioned also, the
compat

clk: ti: dra7xx: rename existing clkctrl data as compat data

Rename the existing clkctrl data in preparation of upcoming clkdm
based split for it. Once the DT data has transitioned also, the
compat data can be removed.

Signed-off-by: Tero Kristo <[email protected]>
Tested-by: Tony Lindgren <[email protected]>

show more ...

clk: ti: am43xx: rename existing clkctrl data as compat data

Rename the existing clkctrl data in preparation of upcoming clkdm
based split for it. Once the DT data has transitioned also, the
compat

clk: ti: am43xx: rename existing clkctrl data as compat data

Rename the existing clkctrl data in preparation of upcoming clkdm
based split for it. Once the DT data has transitioned also, the
compat data can be removed.

Signed-off-by: Tero Kristo <[email protected]>
Tested-by: Tony Lindgren <[email protected]>

show more ...

clk: ti: am33xx: rename existing clkctrl data as compat data

Rename the existing clkctrl data in preparation of upcoming clkdm
based split for it. Once the DT data has transitioned also, the
compat

clk: ti: am33xx: rename existing clkctrl data as compat data

Rename the existing clkctrl data in preparation of upcoming clkdm
based split for it. Once the DT data has transitioned also, the
compat data can be removed.

Signed-off-by: Tero Kristo <[email protected]>
Tested-by: Tony Lindgren <[email protected]>

show more ...

clk: ti: Drop legacy clk-3xxx-legacy code

We have now had omap3 booting in device tree only mode for a while
and all this code is unused.

Acked-by: Tero Kristo <[email protected]>
Signed-off-by: Tony

clk: ti: Drop legacy clk-3xxx-legacy code

We have now had omap3 booting in device tree only mode for a while
and all this code is unused.

Acked-by: Tero Kristo <[email protected]>
Signed-off-by: Tony Lindgren <[email protected]>

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License cleanup: add SPDX GPL-2.0 license identifier to files with no license

Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.

By default all files without license information are under the default
license of the kernel, which is GPL version 2.

Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.

How this work was done:

Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,

Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.

The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.

The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.

Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if <5
lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

- when both scanners couldn't find any license traces, file was
considered to have no license information in it, and the top level
COPYING file license applied.

For non */uapi/* files that summary was:

SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 11139

and resulted in the first patch in this series.

If that file was a */uapi/* path one, it was "GPL-2.0 WITH
Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was:

SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 WITH Linux-syscall-note 930

and resulted in the second patch in this series.

- if a file had some form of licensing information in it, and was one
of the */uapi/* ones, it was denoted with the Linux-syscall-note if
any GPL family license was found in the file or had no licensing in
it (per prior point). Results summary:

SPDX license identifier # files
---------------------------------------------------|------
GPL-2.0 WITH Linux-syscall-note 270
GPL-2.0+ WITH Linux-syscall-note 169
((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21
((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17
LGPL-2.1+ WITH Linux-syscall-note 15
GPL-1.0+ WITH Linux-syscall-note 14
((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5
LGPL-2.0+ WITH Linux-syscall-note 4
LGPL-2.1 WITH Linux-syscall-note 3
((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3
((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1

and that resulted in the third patch in this series.

- when the two scanners agreed on the detected license(s), that became
the concluded license(s).

- when there was disagreement between the two scanners (one detected a
license but the other didn't, or they both detected different
licenses) a manual inspection of the file occurred.

- In most cases a manual inspection of the information in the file
resulted in a clear resolution of the license that should apply (and
which scanner probably needed to revisit its heuristics).

- When it was not immediately clear, the license identifier was
confirmed with lawyers working with the Linux Foundation.

- If there was any question as to the appropriate license identifier,
the file was flagged for further research and to be revisited later
in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights. The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
- a full scancode scan run, collecting the matched texts, detected
license ids and scores
- reviewing anything where there was a license detected (about 500+
files) to ensure that the applied SPDX license was correct
- reviewing anything where there was no detection but the patch license
was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
SPDX license was correct

This produced a worksheet with 20 files needing minor correction. This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg. Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected. This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.) Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <[email protected]>
Reviewed-by: Philippe Ombredanne <[email protected]>
Reviewed-by: Thomas Gleixner <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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clk: ti: add support for clkctrl clocks

Previously, hwmod core has been used for controlling the hwmod level
clocks directly. This has certain drawbacks, like being unable to share
the clocks for mu

clk: ti: add support for clkctrl clocks

Previously, hwmod core has been used for controlling the hwmod level
clocks directly. This has certain drawbacks, like being unable to share
the clocks for multiple users, missing usecounting and generally being
totally incompatible with the common clock framework.

This patch adds support for clkctrl clocks for addressing the above
issues. These support the modulemode handling, which will replace the
direct hwmod clkctrl linkage. Any optional clocks are also supported,
gate, mux and divider.

Signed-off-by: Tero Kristo <[email protected]>
Acked-by: Tony Lindgren <[email protected]>

show more ...

clk: ti: Allow COMPILE_TEST to build selected drivers

The arch independent drivers can be build testeed with
COMPILE_TEST. Let's allow that for drivers/clk/ti.

Signed-off-by: Tony Lindgren <tony@at

clk: ti: Allow COMPILE_TEST to build selected drivers

The arch independent drivers can be build testeed with
COMPILE_TEST. Let's allow that for drivers/clk/ti.

Signed-off-by: Tony Lindgren <[email protected]>
Signed-off-by: Michael Turquette <[email protected]>

show more ...

clk: ti: Add support for dm814x ADPLL

On dm814x we have 13 ADPLLs with 3 to 4 outputs on each. The
ADPLLs have several dividers and muxes controlled by a shared
control register for each PLL.

Note

clk: ti: Add support for dm814x ADPLL

On dm814x we have 13 ADPLLs with 3 to 4 outputs on each. The
ADPLLs have several dividers and muxes controlled by a shared
control register for each PLL.

Note that for the clocks to work as device drivers for booting on
dm814x, this patch depends on "ARM: OMAP2+: Change core_initcall
levels to postcore_initcall" that has already been merged.

Also note that this patch does not implement clk_set_rate for the
PLL, that will be posted later on when available.

Cc: Stephen Boyd <[email protected]>
Acked-by: Tero Kristo <[email protected]>
Signed-off-by: Tony Lindgren <[email protected]>
Signed-off-by: Michael Turquette <[email protected]>

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ARM: OMAP2+: Add support for initializing dm814x clocks

Let's add a minimal clocks for dm814x to get it booted. This is
mostly a placeholder and relies on the PLLs being on from the
bootloader.

Not

ARM: OMAP2+: Add support for initializing dm814x clocks

Let's add a minimal clocks for dm814x to get it booted. This is
mostly a placeholder and relies on the PLLs being on from the
bootloader.

Note that the divider clocks work the same way as on dm816x and
am335x.

Cc: Matthijs van Duin <[email protected]>
Cc: Mike Turquette <[email protected]>
Cc: Paul Walmsley <[email protected]>
Cc: Stephen Boyd <[email protected]>
Cc: Tero Kristo <[email protected]>
Acked-by: Stephen Boyd <[email protected]>
Signed-off-by: Tony Lindgren <[email protected]>

show more ...

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 <[email protected]>

show more ...

clk: ti: dpll: move omap3 DPLL functionality to clock driver

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 func

clk: ti: dpll: move omap3 DPLL functionality to clock driver

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: Tero Kristo <[email protected]>

show more ...

clk: ti: move interface clock implementation under drivers/clk

With the legacy clock support gone, the OMAP interface clock implementation
can be moved under the clock driver. Some temporary header

clk: ti: move interface clock implementation under drivers/clk

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: Tero Kristo <[email protected]>

show more ...

clk: ti: move OMAP4+ DPLL implementation under drivers/clk

With the legacy clock support gone, the OMAP4 specific DPLL implementations
can be moved under the clock driver. Change some of the functio

clk: ti: move OMAP4+ DPLL implementation under drivers/clk

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: Tero Kristo <[email protected]>

show more ...

clk: ti: move generic OMAP DPLL implementation under drivers/clk

With the legacy clock data now gone, we can start moving OMAP clock
type implementations under clock driver. Start this with moving t

clk: ti: move generic OMAP DPLL implementation under drivers/clk

With the legacy clock data now gone, we can start moving OMAP clock
type implementations under clock driver. Start this with moving the
generic OMAP DPLL clock type under TI clock driver.

Signed-off-by: Tero Kristo <[email protected]>

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clk: omap: compile legacy omap3 clocks conditionally

The 'ARM: OMAP3: legacy clock data move under clk driver' patch series
causes build errors when CONFIG_OMAP3 is not set:

drivers/clk/ti/dpll.c:

clk: omap: compile legacy omap3 clocks conditionally

The 'ARM: OMAP3: legacy clock data move under clk driver' patch series
causes build errors when CONFIG_OMAP3 is not set:

drivers/clk/ti/dpll.c: In function 'ti_clk_register_dpll':
drivers/clk/ti/dpll.c:199:31: error: 'omap3_dpll_ck_ops' undeclared (first use in this function)
const struct clk_ops *ops = &omap3_dpll_ck_ops;
^
drivers/clk/ti/dpll.c:199:31: note: each undeclared identifier is reported only once for each function it appears in
drivers/clk/ti/dpll.c:259:10: error: 'omap3_dpll_per_ck_ops' undeclared (first use in this function)
ops = &omap3_dpll_per_ck_ops;
^

drivers/built-in.o: In function `ti_clk_register_gate':
drivers/clk/ti/gate.c:179: undefined reference to `clkhwops_omap3430es2_dss_usbhost_wait'
drivers/clk/ti/gate.c:179: undefined reference to `clkhwops_am35xx_ipss_module_wait'
-in.o: In function `ti_clk_register_interface':
drivers/clk/ti/interface.c:100: undefined reference to `clkhwops_omap3430es2_iclk_hsotgusb_wait'
drivers/clk/ti/interface.c:100: undefined reference to `clkhwops_omap3430es2_iclk_dss_usbhost_wait'
drivers/clk/ti/interface.c:100: undefined reference to `clkhwops_omap3430es2_iclk_ssi_wait'
drivers/clk/ti/interface.c:100: undefined reference to `clkhwops_am35xx_ipss_wait'
drivers/built-in.o: In function `ti_clk_register_composite':
:(.text+0x3da768): undefined reference to `ti_clk_build_component_gate'

In order to fix that problem, this patch makes the omap3 legacy code
compiled only when both CONFIG_OMAP3 and CONFIG_ATAGS are set.

Signed-off-by: Arnd Bergmann <[email protected]>
Acked-by: Tony Lindgren <[email protected]>
Signed-off-by: Michael Turquette <[email protected]>

show more ...

clk: ti: add omap3 legacy clock data

Introduces omap3 legacy clock data under clock driver. The clock data
is also in new format, which makes it possible to get rid of the
clk-private.h header. This

clk: ti: add omap3 legacy clock data

Introduces omap3 legacy clock data under clock driver. The clock data
is also in new format, which makes it possible to get rid of the
clk-private.h header. This patch also introduces SoC specific init
functions that shall be called from the low level init.

The data format used in this file has two possible evolution paths;
it can either be removed completely once no longer needed, or it will
be possible to retain the format and modify the TI clock driver to be
a loadable module at some point. The actual path to be followed
will be decided later.

Signed-off-by: Tero Kristo <[email protected]>
Acked-by: Tony Lindgren <[email protected]>
Signed-off-by: Michael Turquette <[email protected]>

show more ...

clk: ti: Initialize clocks for dm816x

The clocks on ti81xx are not compatible with omap3. On dm816x
the clock source is a FAPLL (Flying Adder PLL), and on dm814x
there seems to be an APLL (All Digit

clk: ti: Initialize clocks for dm816x

The clocks on ti81xx are not compatible with omap3. On dm816x
the clock source is a FAPLL (Flying Adder PLL), and on dm814x
there seems to be an APLL (All Digital PLL).

Let's fix up things for dm816x in preparation for adding the
FAPLL support. As we already have a dummy ti81xx_dt_clk_init()
in place, let's use that for now to avoid adding a dependency
to the omap patches.

Later on if somebody adds dm814x support we can split the
ti81xx_dt_clk_init() clock init function as needed.

Cc: Brian Hutchinson <[email protected]>
Cc: Paul Walmsley <[email protected]>
Cc: Tero Kristo <[email protected]>
Signed-off-by: Tony Lindgren <[email protected]>
Signed-off-by: Michael Turquette <[email protected]>

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clk: ti: Add support for FAPLL on dm816x

On dm816x the clocks are sourced from a FAPLL (Flying Adder PLL)
that does not seem to be used on the other omap variants.

There are four instances of the F

clk: ti: Add support for FAPLL on dm816x

On dm816x the clocks are sourced from a FAPLL (Flying Adder PLL)
that does not seem to be used on the other omap variants.

There are four instances of the FAPLL on dm816x that each have three
to seven child synthesizers.

I've set up the FAPLL as a single fapll.c driver. Later on we could
potentially have the PLL code generic. To do that, we would have to
consider the following:

1. Setting the PLL to bypass mode also sets the child synthesizers
into bypass mode. As the bypass rate can also be generated by
the PLL in regular mode, there's no way for the child synthesizers
to detect the bypass mode based on the parent clock rate.

2. The PLL registers control the power for each of the child
syntheriser.

Note that the clocks are currently still missing the set_rate
implementation so things are still running based on the bootloader
values. That's OK for now as most of the outputs have dividers and
those can be set using the existing TI component clock code.

I have verified that the extclk rates are correct for a few clocks,
so adding the set_rate support should be fairly trivial later on.

This code is partially based on the TI81XX-LINUX-PSP-04.04.00.02
patches published at:

http://downloads.ti.com/dsps/dsps_public_sw/psp/LinuxPSP/TI81XX_04_04/04_04_00_02/index_FDS.html

Cc: Brian Hutchinson <[email protected]>
Cc: Paul Walmsley <[email protected]>
Cc: Tero Kristo <[email protected]>
Signed-off-by: Tony Lindgren <[email protected]>
Signed-off-by: Michael Turquette <[email protected]>

show more ...

CLK: TI: Driver for DRA7 ATL (Audio Tracking Logic)

Audio Tracking Logic is designed to be used by HD Radio applications to
synchronize the audio output clocks to the baseband clock. ATL can be also

CLK: TI: Driver for DRA7 ATL (Audio Tracking Logic)

Audio Tracking Logic is designed to be used by HD Radio applications to
synchronize the audio output clocks to the baseband clock. ATL can be also
used to track errors between two reference clocks (BWS, AWS) and generate a modulated
clock output which averages to some desired frequency.
In essence ATL is generating a clock to be used by an audio codec and also
to be used by the SoC as MCLK.

To be able to integrate the ATL provided clocks to the clock tree we need
two types of DT binding:
- DT clock nodes to represent the ATL clocks towards the CCF
- binding for the ATL IP itself which is going to handle the hw
configuration

The reason for this type of setup is that ATL itself is a separate device
in the SoC, it has it's own address space and clock domain. Other IPs can
use the ATL generated clock as their functional clock (McASPs for example)
and external components like audio codecs can also use the very same clock
as their MCLK.

The ATL IP in DRA7 contains 4 ATL instences.

Signed-off-by: Peter Ujfalusi <[email protected]>
Signed-off-by: Tero Kristo <[email protected]>

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CLK: TI: OMAP2: add clock init support

Adds support for registering the alias clocks, boot time clock-enable list
and disabling autoidle of clocks.

Signed-off-by: Tero Kristo <[email protected]>

CLK: TI: add am43xx clock init file

clk-43xx.c now contains the clock init functionality for am43xx, including
DT clock registration and adding of static clkdev entries.

Signed-off-by: Tero Kristo

CLK: TI: add am43xx clock init file

clk-43xx.c now contains the clock init functionality for am43xx, including
DT clock registration and adding of static clkdev entries.

Signed-off-by: Tero Kristo <[email protected]>
Tested-by: Nishanth Menon <[email protected]>
Acked-by: Tony Lindgren <[email protected]>
Signed-off-by: Mike Turquette <[email protected]>

show more ...

CLK: TI: add omap3 clock init file

clk-3xxx.c now contains the clock init functionality for omap3, including
DT clock registration and adding of static clkdev entries.

Signed-off-by: Tero Kristo <t

CLK: TI: add omap3 clock init file

clk-3xxx.c now contains the clock init functionality for omap3, including
DT clock registration and adding of static clkdev entries.

Signed-off-by: Tero Kristo <[email protected]>
Tested-by: Nishanth Menon <[email protected]>
Acked-by: Tony Lindgren <[email protected]>
Signed-off-by: Mike Turquette <[email protected]>

show more ...