[PATCH 0/3] Add T7 PWM core clock support

[Ronald Claveau via B4 Relay <devnull+linux-kernel-dev.aliel.fr@kernel.org>]

The PWM controllers on the Amlogic T7 SoC have a system clock that
controls access to the controller, in addition to the two input
clocks of channels A and B.

It is currently not described in the device tree, so it is neither
referenced nor enabled by the driver.

This series adds support for it:

  - patch 1 extends the binding with a third "core" clock for
    amlogic,t7-pwm, and makes clocks/clock-names required for it;
  - patch 2 makes the driver get and enable the optional "core"
    clock, leaving other SoCs unaffected;
  - patch 3 describes the system clock (CLKID_SYS_PWM_*) in the T7
    device tree for all the PWM controllers.

`dt_binding_check DT_SCHEMA_FILES=pwm-amlogic.yaml` test is ok

  CHKDT   ./Documentation/devicetree/bindings
warning: python package 'yamllint' not installed, skipping
  STYLE   ./Documentation/devicetree/bindings
  DTEX    Documentation/devicetree/bindings/pwm/pwm-amlogic.example.dts
  DTC [C] Documentation/devicetree/bindings/pwm/pwm-amlogic.example.dtb

Signed-off-by: Ronald Claveau <linux-kernel-dev@aliel.fr>
---
Ronald Claveau (3):
      dt-bindings: pwm: amlogic: Add core clock for T7
      pwm: meson: Add optional core clock for S4 PWM
      arm64: dts: amlogic: t7: Add core clock to PWM controller nodes

 .../devicetree/bindings/pwm/pwm-amlogic.yaml       | 37 +++++++++++++++++++---
 arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi        | 28 ++++++++++++----
 drivers/pwm/pwm-meson.c                            |  5 +++
 3 files changed, 59 insertions(+), 11 deletions(-)
---
base-commit: a8c591ed6b672915e0be57843f943a2a723aff40
change-id: 20260924-add-t7-sys-pwm-clk-f0eff81bee21

Best regards,
-- 
Ronald Claveau <linux-kernel-dev@aliel.fr>