On 21/02/2022 04:29, Qin Jian wrote: > Add documentation to describe Sunplus SP7021 clock driver bindings. > > Reviewed-by: Stephen Boyd <sboyd@xxxxxxxxxx> > Reviewed-by: Rob Herring <robh@xxxxxxxxxx> > Signed-off-by: Qin Jian <qinjian@xxxxxxxxxxx> > --- > .../bindings/clock/sunplus,sp7021-clkc.yaml | 52 ++++++++ > MAINTAINERS | 2 + > include/dt-bindings/clock/sp-sp7021.h | 112 ++++++++++++++++++ > 3 files changed, 166 insertions(+) > create mode 100644 Documentation/devicetree/bindings/clock/sunplus,sp7021-clkc.yaml > create mode 100644 include/dt-bindings/clock/sp-sp7021.h > > diff --git a/Documentation/devicetree/bindings/clock/sunplus,sp7021-clkc.yaml b/Documentation/devicetree/bindings/clock/sunplus,sp7021-clkc.yaml > new file mode 100644 > index 000000000..e6d098cf4 > --- /dev/null > +++ b/Documentation/devicetree/bindings/clock/sunplus,sp7021-clkc.yaml > @@ -0,0 +1,52 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +# Copyright (C) Sunplus Co., Ltd. 2021 > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/clock/sunplus,sp7021-clkc.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Sunplus SP7021 SoC Clock Controller Binding > + > +maintainers: > + - Qin Jian <qinjian@xxxxxxxxxxx> > + > +properties: > + compatible: > + const: sunplus,sp7021-clkc > + > + "#clock-cells": > + const: 1 > + > + reg: > + maxItems: 1 > + > + clocks: > + items: > + - description: External oscillator clock > + - description: System clock > + > + clock-names: > + items: > + - const: extclk > + - const: pllsys > + > +required: > + - compatible > + - "#clock-cells" > + - reg > + - clocks > + - clock-names > + > +additionalProperties: false > + > +examples: > + - | > + clkc: clock-controller@9c000000 { > + compatible = "sunplus,sp7021-clkc"; > + #clock-cells = <1>; > + reg = <0x9c000000 0x280>; > + clocks = <&extclk>, <&clkc PLL_SYS>; Except the warning pointed out by Rob's bot, it looks like you feed this clock-controller with a clock from itself. Is there a point to express it in DTS at all? > + clock-names = "extclk", "pllsys"; > + }; Best regards, Krzysztof