linux-kernel - Re: [PATCH v3 1/4] dt-bindings: clk: Add Baikal-T1 CCU PLLs binding

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Date:   Fri, 29 May 2020 11:54:26 -0600
From:   Rob Herring <robh@...nel.org>
To:     Serge Semin <Sergey.Semin@...kalelectronics.ru>
Cc:     Arnd Bergmann <arnd@...db.de>, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mips@...r.kernel.org,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Serge Semin <fancer.lancer@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        devicetree@...r.kernel.org,
        Alexey Malahov <Alexey.Malahov@...kalelectronics.ru>,
        Stephen Boyd <sboyd@...nel.org>
Subject: Re: [PATCH v3 1/4] dt-bindings: clk: Add Baikal-T1 CCU PLLs binding

On Wed, 27 May 2020 01:20:53 +0300, Serge Semin wrote:
> Baikal-T1 Clocks Control Unit is responsible for transformation of a
> signal coming from an external oscillator into clocks of various
> frequencies to propagate them then to the corresponding clocks
> consumers (either individual IP-blocks or clock domains). In order
> to create a set of high-frequency clocks the external signal is
> firstly handled by the embedded into CCU PLLs. So the corresponding
> dts-node is just a normal clock-provider node with standard set of
> properties. Note as being part of the Baikal-T1 System Controller its
> DT node is supposed to be a child the system controller node.
> 
> Signed-off-by: Serge Semin <Sergey.Semin@...kalelectronics.ru>
> Cc: Alexey Malahov <Alexey.Malahov@...kalelectronics.ru>
> Cc: Arnd Bergmann <arnd@...db.de>
> Cc: linux-mips@...r.kernel.org
> 
> ---
> 
> Changelog v2:
> - Rearrange the SoBs.
> - Discard comments in the bindings file header.
> - Add dual GPL/BSD license.
> - Add spaces around the ASCII-graphics in the binding description.
> - Remove reference to Documentation/devicetree/bindings/clock/clock-bindings.txt
>   file.
> - Discard redundant object check against "/schemas/clock/clock.yaml#" schema.
> - Discard redundant descriptions of the "#clock-cells" property.
> - Remove "reg" property since from now the clock DT node is supposed to be
>   a child of the syscon-compatible system controller node.
> - Remove "clock-output-names" property support.
> - Replace "additionalProperties: false" with "unevaluatedProperties: false".
> - Lowercase the nodes name in the examples.
> - Use "clock-controller" node name suffix in the examples.
> - Remove unnecessary comments in the clocks dt-bindings header file.
> 
> Changelog v3:
> - Get the reg property back even though the driver is using the parental
>   syscon regmap.
> - The DT schema will live separately from the system controller, but the
>   corresponding sub-node of the later DT schema will $ref this one.
> ---
>  .../bindings/clock/baikal,bt1-ccu-pll.yaml    | 131 ++++++++++++++++++
>  include/dt-bindings/clock/bt1-ccu.h           |  16 +++
>  2 files changed, 147 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/clock/baikal,bt1-ccu-pll.yaml
>  create mode 100644 include/dt-bindings/clock/bt1-ccu.h
> 

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