On Mon, Feb 21, 2022 at 09:52:44AM +0800, Chun-Jie Chen wrote: > This patch adds the new binding documentation for system clock > and functional clock on Mediatek MT8186. > > Signed-off-by: Chun-Jie Chen <chun-jie.chen@xxxxxxxxxxxx> > --- > .../arm/mediatek/mediatek,mt8186-clock.yaml | 56 +++ > .../mediatek/mediatek,mt8186-sys-clock.yaml | 54 +++ > include/dt-bindings/clock/mt8186-clk.h | 445 ++++++++++++++++++ > 3 files changed, 555 insertions(+) > create mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8186-clock.yaml > create mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8186-sys-clock.yaml > create mode 100644 include/dt-bindings/clock/mt8186-clk.h > > diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8186-clock.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8186-clock.yaml > new file mode 100644 > index 000000000000..373e8a100da3 > --- /dev/null > +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8186-clock.yaml > @@ -0,0 +1,56 @@ > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: "http://devicetree.org/schemas/arm/mediatek/mediatek,mt8186-clock.yaml#"; > +$schema: "http://devicetree.org/meta-schemas/core.yaml#"; > + > +title: Mediatek Functional Clock Controller for MT8186 > + > +maintainers: > + - Chun-Jie Chen <chun-jie.chen@xxxxxxxxxxxx> > + > +description: You need a '|' to preserve the formatting. > + The clock architecture in Mediatek like below > + PLLs --> > + dividers --> > + muxes > + --> > + clock gate > + > + The devices provide clock gate control in different IP blocks. > + > +properties: > + compatible: > + items: > + - enum: > + - mediatek,mt8186-imp_iic_wrap > + - mediatek,mt8186-mfgsys > + - mediatek,mt8186-wpesys > + - mediatek,mt8186-imgsys1 > + - mediatek,mt8186-imgsys2 > + - mediatek,mt8186-vdecsys > + - mediatek,mt8186-vencsys > + - mediatek,mt8186-camsys > + - mediatek,mt8186-camsys_rawa > + - mediatek,mt8186-camsys_rawb > + - mediatek,mt8186-mdpsys > + - mediatek,mt8186-ipesys > + reg: > + maxItems: 1 > + > + '#clock-cells': > + const: 1 > + > +required: > + - compatible > + - reg > + > +additionalProperties: false > + > +examples: > + - | > + imp_iic_wrap: clock-controller@11017000 { > + compatible = "mediatek,mt8186-imp_iic_wrap"; > + reg = <0x11017000 0x1000>; > + #clock-cells = <1>; > + }; > diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8186-sys-clock.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8186-sys-clock.yaml > new file mode 100644 > index 000000000000..4c071dd66b76 > --- /dev/null > +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8186-sys-clock.yaml > @@ -0,0 +1,54 @@ > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: "http://devicetree.org/schemas/arm/mediatek/mediatek,mt8186-sys-clock.yaml#"; > +$schema: "http://devicetree.org/meta-schemas/core.yaml#"; > + > +title: Mediatek System Clock Controller for MT8186 > + > +maintainers: > + - Chun-Jie Chen <chun-jie.chen@xxxxxxxxxxxx> > + > +description: And here. With that, Reviewed-by: Rob Herring <robh@xxxxxxxxxx> > + The clock architecture in Mediatek like below > + PLLs --> > + dividers --> > + muxes > + --> > + clock gate > + > + The apmixedsys provides most of PLLs which generated from SoC 26m. > + The topckgen provides dividers and muxes which provide the clock source to other IP blocks. > + The infracfg_ao provides clock gate in peripheral and infrastructure IP blocks. > + The mcusys provides mux control to select the clock source in AP MCU. > + The device nodes also provide the system control capacity for configuration.
