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Clock changes for v2024.04

This pull has the usual fixes and new (clock-adjacent) drivers. It also has some
cleanups for the clock API; in particular removing the unused rfree callback.

CI: https://source.denx.de/u-boot/custodians/u-boot-clk/-/pipelines/19486

clock changes for u-boot/master

This has some clock fixes which should go in before the release. It's a bit
late in the cycle, but most of these have tests to go along with them.

Signed-off-by: Sean Anderson <seanga2@gmail.com>

clock patches for u-boot/next

The main thing in here is Igor's conversion of soc_clk_dump to a clk_ops
member. There's also a write-protect feature for nuvoton clocks.

Signed-off-by: Sean Anderson <seanga2@gmail.com>

Clock changes for 2024.01-rc2

This contains several fixes for the clock core.

Clock changes for 2023.04-rc1

This contains various fixes and small features. I've included a reset patch as
well since it was in the same series as a clock patch.

Clock patches for 2023.04

This adds support for USB clocks on SAM9X60, as well as various fixes for
nuvoton, imx8mn, and clock core.

Clock patches for 2023.01

This contains various fixes (some long overdue) for the next release.

Clock patches for u-boot/next

This is mostly cleanups/consolidations. clk_free is made to return void, and the
CCF wrappers present in almost every CCF clock are consolidated. I would
particularly like to have the latter upstream, since there are at least two
series adding support for new CCF drivers (imx8mq and imxrt1170) which can
benefit from these commits.

I had to fix up the last commit since I missed an include for at91.

CI: https://source.denx.de/u-boot/custodians/u-boot-clk/-/pipelines/11521

Clock patches for v2022.04-rc2

This has an assortment of cleanups and the occasional bugfix. Also present
is the addition of the clock subsystem documentation to HTML docs.

CI: https://source.denx.de/u-boot/custodians/u-boot-clk/-/pipelines/11075

Clock patches for v2022.01-rc3

This adds better logging support for many CCF drivers, and clarifies some
documentation regarding clk_get_rate.

- Add I2C clocks for i.MX6Q CCF driver
- Fix check in clk_set_default_parents()
- Managed API to get clock from device tree
- Fixes for core clock code (including sandbox regression tests)

Changes (Common Clock Framework):

- Add enable counter to CCF (including sandbox tests)

- Expose CCF entry to all SoC

- Add iMX8MM CCF driver

- Add composite clock support for iMX8M