Add support for Amlogic S4 PWM and related device nodes.

Signed-off-by: Kelvin Zhang <kelvin.zhang@amlogic.com>
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Changes in v5:
- Add devm_add_action_or_reset for free clk when unloading.
- Replace the underscores of node name with dashes.
- Link to v4: https://lore.kernel.org/r/20240424-s4-pwm-v4-0-ee22effd40d0@amlogic.com

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Junyi Zhao (2):
      pwm: meson: Add support for Amlogic S4 PWM
      arm64: dts: amlogic: Add Amlogic S4 PWM

 arch/arm64/boot/dts/amlogic/meson-s4.dtsi | 207 ++++++++++++++++++++++++++++++
 drivers/pwm/pwm-meson.c                   |  53 ++++++++
 2 files changed, 260 insertions(+)
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base-commit: 124cfbcd6d185d4f50be02d5f5afe61578916773
change-id: 20240424-s4-pwm-2d709986caee

Best regards,
-- 
Kelvin Zhang <kelvin.zhang@amlogic.com>