linux-kernel - Re: [PATCH v5 11/21] dt-bindings: clock: Add StarFive JH7110 system clock and reset generator

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Date:   Mon, 13 Mar 2023 09:53:01 +0100
From:   Emil Renner Berthing <emil.renner.berthing@...onical.com>
To:     Hal Feng <hal.feng@...rfivetech.com>
Cc:     Conor Dooley <conor@...nel.org>, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-riscv@...ts.infradead.org,
        Stephen Boyd <sboyd@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Palmer Dabbelt <palmer@...belt.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Ben Dooks <ben.dooks@...ive.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Marc Zyngier <maz@...nel.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 11/21] dt-bindings: clock: Add StarFive JH7110 system
 clock and reset generator

On Mon, 13 Mar 2023 at 04:22, Hal Feng <hal.feng@...rfivetech.com> wrote:
> On Sat, 11 Mar 2023 13:11:38 +0000, Conor Dooley wrote:
> > On Sat, Mar 11, 2023 at 05:07:23PM +0800, Hal Feng wrote:
> >> From: Emil Renner Berthing <kernel@...il.dk>
> >>
> >> Add bindings for the system clock and reset generator (SYSCRG) on the
> >> JH7110 RISC-V SoC by StarFive Ltd.
> >>
> >> Signed-off-by: Emil Renner Berthing <kernel@...il.dk>
> >> Signed-off-by: Hal Feng <hal.feng@...rfivetech.com>
> >> ---
> >>  .../clock/starfive,jh7110-syscrg.yaml         | 104 +++++++++
> >>  MAINTAINERS                                   |   8 +-
> >>  .../dt-bindings/clock/starfive,jh7110-crg.h   | 203 ++++++++++++++++++
> >>  .../dt-bindings/reset/starfive,jh7110-crg.h   | 142 ++++++++++++
> >>  4 files changed, 454 insertions(+), 3 deletions(-)
> >>  create mode 100644 Documentation/devicetree/bindings/clock/starfive,jh7110-syscrg.yaml
> >>  create mode 100644 include/dt-bindings/clock/starfive,jh7110-crg.h
> >>  create mode 100644 include/dt-bindings/reset/starfive,jh7110-crg.h
> >>
> >> diff --git a/Documentation/devicetree/bindings/clock/starfive,jh7110-syscrg.yaml b/Documentation/devicetree/bindings/clock/starfive,jh7110-syscrg.yaml
> >> new file mode 100644
> >> index 000000000000..84373ae31644
> >> --- /dev/null
> >> +++ b/Documentation/devicetree/bindings/clock/starfive,jh7110-syscrg.yaml
> >
> >> +  clock-names:
> >> +    oneOf:
> >> +      - items:
> >> +          - const: osc
> >> +          - enum:
> >> +              - gmac1_rmii_refin
> >> +              - gmac1_rgmii_rxin
> >> +          - const: i2stx_bclk_ext
> >> +          - const: i2stx_lrck_ext
> >> +          - const: i2srx_bclk_ext
> >> +          - const: i2srx_lrck_ext
> >> +          - const: tdm_ext
> >> +          - const: mclk_ext
> >> +
> >> +      - items:
> >> +          - const: osc
> >> +          - const: gmac1_rmii_refin
> >> +          - const: gmac1_rgmii_rxin
> >> +          - const: i2stx_bclk_ext
> >> +          - const: i2stx_lrck_ext
> >> +          - const: i2srx_bclk_ext
> >> +          - const: i2srx_lrck_ext
> >> +          - const: tdm_ext
> >> +          - const: mclk_ext
> >
> > Assuming nothing else here is optional,
> > Reviewed-by: Conor Dooley <conor.dooley@...rochip.com>
>
> Yeah, nothing else here is optional. Thanks for your review.

Wait, what kind of optional are we talking about here? Surely all the
i2s and tdm external clocks are optional in the sense that you don't
need them on a board that never does any audio processing.

/Emil

>
> Best regards,
> Hal