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Date: Tue, 10 Aug 2021 20:49:52 +0300 From: Sam Protsenko <semen.protsenko@...aro.org> To: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com> Cc: Michael Turquette <mturquette@...libre.com>, Stephen Boyd <sboyd@...nel.org>, Rob Herring <robh+dt@...nel.org>, Sylwester Nawrocki <s.nawrocki@...sung.com>, Tomasz Figa <tomasz.figa@...il.com>, Chanwoo Choi <cw00.choi@...sung.com>, linux-clk <linux-clk@...r.kernel.org>, devicetree <devicetree@...r.kernel.org>, linux-arm Mailing List <linux-arm-kernel@...ts.infradead.org>, Linux Samsung SOC <linux-samsung-soc@...r.kernel.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org> Subject: Re: [PATCH v2 2/8] dt-bindings: clock: samsung: add bindings for Exynos external clock On Tue, 10 Aug 2021 at 12:32, Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com> wrote: > > Document the bindings for Samsung Exynos external to SoC > (oscclk/XXTI/XusbXTI) clock provided on boards. The bindings are > already implemented in most of the Exynos clock drivers and DTS files. > > Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com> > --- Just want to mention that remaining users of such fixed clocks can be converted to regular fixed-rate-clock, and then this binding can be removed along with samsung_clk_of_register_fixed_ext() API? Just a thought. > .../clock/samsung,exynos-ext-clock.yaml | 46 +++++++++++++++++++ > 1 file changed, 46 insertions(+) > create mode 100644 Documentation/devicetree/bindings/clock/samsung,exynos-ext-clock.yaml > > diff --git a/Documentation/devicetree/bindings/clock/samsung,exynos-ext-clock.yaml b/Documentation/devicetree/bindings/clock/samsung,exynos-ext-clock.yaml > new file mode 100644 > index 000000000000..64d027dbe3b2 > --- /dev/null > +++ b/Documentation/devicetree/bindings/clock/samsung,exynos-ext-clock.yaml > @@ -0,0 +1,46 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/clock/samsung,exynos-ext-clock.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Samsung SoC external/osc/XXTI/XusbXTI clock > + > +maintainers: > + - Chanwoo Choi <cw00.choi@...sung.com> > + - Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com> > + - Sylwester Nawrocki <s.nawrocki@...sung.com> > + - Tomasz Figa <tomasz.figa@...il.com> > + > +description: | > + Samsung SoCs require an external clock supplied through XXTI or XusbXTI pins. > + > +properties: > + compatible: > + enum: > + - samsung,clock-xxti > + - samsung,clock-xusbxti > + - samsung,exynos5420-oscclk > + > + "#clock-cells": > + const: 0 > + > + clock-frequency: true > + > + clock-output-names: > + maxItems: 1 > + > +required: > + - compatible > + - clock-frequency > + > +additionalProperties: false > + > +examples: > + - | > + fixed-rate-clocks { > + clock { > + compatible = "samsung,clock-xxti"; > + clock-frequency = <24000000>; > + }; > + }; > -- > 2.30.2 >
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