linux-kernel - Re: [PATCH RESEND 1/7] dt-bindings: soc: spacemit: define spacemit,k1-ccu resets

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Message-ID: <20250321204230.GA3902727-robh@kernel.org>
Date: Fri, 21 Mar 2025 15:42:30 -0500
From: Rob Herring <robh@...nel.org>
To: Alex Elder <elder@...cstar.com>
Cc: krzk+dt@...nel.org, conor+dt@...nel.org, p.zabel@...gutronix.de,
	mturquette@...libre.com, sboyd@...nel.org, dlan@...too.org,
	heylenay@....org, guodong@...cstar.com, paul.walmsley@...ive.com,
	palmer@...belt.com, aou@...s.berkeley.edu, spacemit@...ts.linux.dev,
	devicetree@...r.kernel.org, linux-clk@...r.kernel.org,
	linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH RESEND 1/7] dt-bindings: soc: spacemit: define
 spacemit,k1-ccu resets

On Fri, Mar 21, 2025 at 10:18:24AM -0500, Alex Elder wrote:
> There are additional SpacemiT syscon CCUs whose registers control both
> clocks and resets:  RCPU, RCPU2, and APBC2. Unlike those defined
> previously, these will initially support only resets.  They do not
> incorporate power domain functionality.
> 
> Define the index values for resets associated with all SpacemiT K1
> syscon nodes, including those with clocks already defined, as well as
> the new ones (without clocks).
> 
> Signed-off-by: Alex Elder <elder@...cstar.com>
> ---
>  .../soc/spacemit/spacemit,k1-syscon.yaml      |  13 +-
>  include/dt-bindings/clock/spacemit,k1-ccu.h   | 134 ++++++++++++++++++
>  2 files changed, 143 insertions(+), 4 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/soc/spacemit/spacemit,k1-syscon.yaml b/Documentation/devicetree/bindings/soc/spacemit/spacemit,k1-syscon.yaml
> index 07a6728e6f864..333c28e075b6c 100644
> --- a/Documentation/devicetree/bindings/soc/spacemit/spacemit,k1-syscon.yaml
> +++ b/Documentation/devicetree/bindings/soc/spacemit/spacemit,k1-syscon.yaml
> @@ -19,6 +19,9 @@ properties:
>        - spacemit,k1-syscon-apbc
>        - spacemit,k1-syscon-apmu
>        - spacemit,k1-syscon-mpmu
> +      - spacemit,k1-syscon-rcpu
> +      - spacemit,k1-syscon-rcpu2
> +      - spacemit,k1-syscon-apbc2
>  
>    reg:
>      maxItems: 1
> @@ -57,13 +60,15 @@ allOf:
>        properties:
>          compatible:
>            contains:
> -            const: spacemit,k1-syscon-apbc
> +            enum:
> +              - spacemit,k1-syscon-apmu
> +              - spacemit,k1-syscon-mpmu
>      then:
> -      properties:
> -        "#power-domain-cells": false
> -    else:
>        required:
>          - "#power-domain-cells"
> +    else:
> +      properties:
> +        "#power-domain-cells": false
>  
>  additionalProperties: false
>  
> diff --git a/include/dt-bindings/clock/spacemit,k1-ccu.h b/include/dt-bindings/clock/spacemit,k1-ccu.h
> index 4a0c7163257e3..a1e1b1fe714ce 100644
> --- a/include/dt-bindings/clock/spacemit,k1-ccu.h
> +++ b/include/dt-bindings/clock/spacemit,k1-ccu.h
> @@ -78,6 +78,9 @@
>  #define CLK_APB			31
>  #define CLK_WDT_BUS		32
>  
> +/*	MPMU resets	*/
> +#define RST_WDT			0
> +
>  /*	APBC clocks	*/
>  #define CLK_UART0		0
>  #define CLK_UART2		1
> @@ -109,6 +112,7 @@
>  #define CLK_PWM17		27
>  #define CLK_PWM18		28
>  #define CLK_PWM19		29
> +

Stray change?

Otherwise,

Reviewed-by: Rob Herring (Arm) <robh@...nel.org>