linux-kernel - Re: [PATCH v3 2/5] dt-bindings: clock: document exynos7870 clock driver CMU bindings

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250219-competent-bullfinch-of-justice-09cbfb@krzk-bin>
Date: Wed, 19 Feb 2025 09:05:55 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Kaustabh Chakraborty <kauschluss@...root.org>
Cc: Sylwester Nawrocki <s.nawrocki@...sung.com>, 
	Chanwoo Choi <cw00.choi@...sung.com>, Alim Akhtar <alim.akhtar@...sung.com>, 
	Michael Turquette <mturquette@...libre.com>, Stephen Boyd <sboyd@...nel.org>, Rob Herring <robh@...nel.org>, 
	Conor Dooley <conor+dt@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
	linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org, linux-clk@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v3 2/5] dt-bindings: clock: document exynos7870 clock
 driver CMU bindings

On Wed, Feb 19, 2025 at 12:20:29AM +0530, Kaustabh Chakraborty wrote:
> +  Exynos7870 clock controller is comprised of several CMU units, generating
> +  clocks for different domains. Those CMU units are modeled as separate device
> +  tree nodes, and might depend on each other. The root clock in that root tree
> +  is an external clock: OSCCLK (26 MHz). This external clock must be defined
> +  as a fixed-rate clock in dts.
> +
> +  Each clock is assigned an identifier and client nodes can use this identifier
> +  to specify the clock which they consume. All clocks available for usage
> +  in clock consumer nodes are defined as preprocessor macros in
> +  'dt-bindings/clock/exynos7870.h' header.

Full path and drop quotes


> +
> +properties:
> +  compatible:
> +    enum:
> +      - samsung,exynos7870-cmu-mif
> +      - samsung,exynos7870-cmu-dispaud
> +      - samsung,exynos7870-cmu-fsys
> +      - samsung,exynos7870-cmu-g3d
> +      - samsung,exynos7870-cmu-isp
> +      - samsung,exynos7870-cmu-mfcmscl
> +      - samsung,exynos7870-cmu-peri
> +
> +  clocks:
> +    minItems: 1
> +    maxItems: 10
> +
> +  clock-names:
> +    minItems: 1
> +    maxItems: 10
> +
> +  "#clock-cells":
> +    const: 1
> +
> +  reg:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - "#clock-cells"

This goes after clock-names, to keep the same order. No need to repeat
old mistakes.

> +  - clocks
> +  - clock-names
> +  - reg
> +
> +allOf:
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: samsung,exynos7870-cmu-mif
> +    then:
> +      properties:
> +        clocks:
> +          items:
> +            - description: External reference clock (26 MHz)
> +
> +        clock-names:
> +          items:
> +            - const: oscclk
> +
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: samsung,exynos7870-cmu-dispaud
> +    then:
> +      properties:
> +        clocks:
> +          items:
> +            - description: External reference clock (26 MHz)
> +            - description: CMU_DISPAUD bus clock (from CMU_MIF)
> +            - description: DECON external clock (from CMU_MIF)
> +            - description: DECON vertical clock (from CMU_MIF)
> +
> +        clock-names:
> +          items:
> +            - const: oscclk
> +            - const: bus
> +            - const: decon_eclk
> +            - const: decon_vclk
> +
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: samsung,exynos7870-cmu-fsys
> +    then:
> +      properties:
> +        clocks:
> +          items:
> +            - description: External reference clock (26 MHz)
> +            - description: CMU_FSYS bus clock (from CMU_MIF)
> +            - description: USB20DRD clock (from CMU_MIF)
> +
> +        clock-names:
> +          items:
> +            - const: oscclk
> +            - const: bus
> +            - const: usb20drd_refclk

Drop _refclk suffix

Best regards,
Krzysztof