[PATCH 2/8] dt-bindings: clock: sun55i-a523-ccu: Add A523 MCU CCU clock controller

Rob Herring (Arm) robh at kernel.org
Mon Sep 1 14:31:24 PDT 2025


On Sun, 31 Aug 2025 01:08:55 +0800, Chen-Yu Tsai wrote:
> From: Chen-Yu Tsai <wens at csie.org>
> 
> There are four clock controllers in the A523 SoC. The existing binding
> already covers two of them that are critical for basic operation. The
> remaining ones are the MCU clock controller and CPU PLL clock
> controller.
> 
> Add a description for the MCU CCU. This unit controls and provides
> clocks to the MCU (RISC-V) subsystem and peripherals meant to operate
> under low power conditions.
> 
> Signed-off-by: Chen-Yu Tsai <wens at csie.org>
> ---
>  .../clock/allwinner,sun55i-a523-ccu.yaml      | 35 +++++++++++-
>  .../dt-bindings/clock/sun55i-a523-mcu-ccu.h   | 54 +++++++++++++++++++
>  .../dt-bindings/reset/sun55i-a523-mcu-ccu.h   | 30 +++++++++++
>  3 files changed, 117 insertions(+), 2 deletions(-)
>  create mode 100644 include/dt-bindings/clock/sun55i-a523-mcu-ccu.h
>  create mode 100644 include/dt-bindings/reset/sun55i-a523-mcu-ccu.h
> 

Reviewed-by: Rob Herring (Arm) <robh at kernel.org>




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