On 25/10/2023 12:39, Keith Zhao wrote: > StarFive SoCs JH7110 display system: A nit, subject: drop second/last, redundant "yamls for". The "dt-bindings" prefix is already stating that these are bindings, so format is fixed. > lcd-controller bases verisilicon dc8200 IP, > and hdmi bases Innosilicon IP. Add bindings for them. Please make it a proper sentences, with proper wrapping. > > also update MAINTAINERS for dt-bindings Not a sentence, but also not really needed. > > about this patch, I tested the dtbs_check and dt_binding_check > with the result pass. > Based on the feedback of the previous version, the corresponding arrangement is made Not relevant, so not really suitable for commit msg. > > Signed-off-by: Keith Zhao <keith.zhao@xxxxxxxxxxxxxxxx> > --- > .../starfive/starfive,display-subsystem.yaml | 41 +++++++ > .../starfive/starfive,jh7110-dc8200.yaml | 109 ++++++++++++++++++ > .../starfive/starfive,jh7110-inno-hdmi.yaml | 85 ++++++++++++++ > MAINTAINERS | 7 ++ > 4 files changed, 242 insertions(+) > create mode 100644 Documentation/devicetree/bindings/display/starfive/starfive,display-subsystem.yaml > create mode 100644 Documentation/devicetree/bindings/display/starfive/starfive,jh7110-dc8200.yaml > create mode 100644 Documentation/devicetree/bindings/display/starfive/starfive,jh7110-inno-hdmi.yaml > > diff --git a/Documentation/devicetree/bindings/display/starfive/starfive,display-subsystem.yaml b/Documentation/devicetree/bindings/display/starfive/starfive,display-subsystem.yaml > new file mode 100644 > index 000000000..f45b97b08 > --- /dev/null > +++ b/Documentation/devicetree/bindings/display/starfive/starfive,display-subsystem.yaml > @@ -0,0 +1,41 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/display/starfive/starfive,display-subsystem.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Starfive DRM master device What is DRM in hardware? I know Digital Rights Management, but then subsystem seems wrong. If you mean Linux DRM, then Linux is not a hardware, so drop all Linuxisms and describe hardware. > + > +maintainers: > + - Keith Zhao <keith.zhao@xxxxxxxxxxxxxxxx> > + - ShengYang Chen <shengyang.chen@xxxxxxxxxxxxxxxx> > + > +description: > + The Starfive DRM master device is a virtual device needed to list all Virtual device? Then not suitable for bindings, sorry. > + display controller or other display interface nodes that comprise the > + graphics subsystem. > + > +properties: > + compatible: > + const: starfive,display-subsystem > + > + ports: > + $ref: /schemas/types.yaml#/definitions/phandle-array No, ports is not phandle-array. ports is object, always. > + description: > + Should contain a list of phandles pointing to display interface ports > + of display controller devices. Display controller definitions as defined > + in Documentation/devicetree/bindings/display/starfive/ > + starfive,jh7110-dc8200.yaml Use standard graph ports, not some own, custom property. Anyway, entire binding should be dropped. You do not need it even. > + > +required: > + - compatible > + - ports > + > +additionalProperties: false > + > +examples: > + - | > + display-subsystem { > + compatible = "starfive,display-subsystem"; > + ports = <&dc_out>; > + }; > diff --git a/Documentation/devicetree/bindings/display/starfive/starfive,jh7110-dc8200.yaml b/Documentation/devicetree/bindings/display/starfive/starfive,jh7110-dc8200.yaml > new file mode 100644 > index 000000000..87051cddf > --- /dev/null > +++ b/Documentation/devicetree/bindings/display/starfive/starfive,jh7110-dc8200.yaml > @@ -0,0 +1,109 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/display/starfive/starfive,jh7110-dc8200.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: StarFive display controller > + > +description: > + The StarFive SoC uses the display controller based on Verisilicon IP > + to transfer the image data from a video memory buffer to an external > + LCD interface. > + > +maintainers: > + - Keith Zhao <keith.zhao@xxxxxxxxxxxxxxxx> > + > +properties: > + compatible: > + const: starfive,jh7110-dc8200 > + > + reg: > + minItems: 1 > + items: > + - description: > + host interface In one line. - description: host interface > + - description: > + display physical base address and length. Drop redundant parts: base address and length. Everything in reg for MMIO would have it... > + > + interrupts: > + items: > + - description: The interrupt will be generated when DC finish one frame > + > + clocks: > + items: > + - description: Clock for display system noc bus. > + - description: Pixel clock for display channel 0. > + - description: Pixel clock for display channel 1. > + - description: Core clock for display controller. > + - description: Clock for axi bus to access ddr. > + - description: Clock for ahb bus to R/W the phy regs. > + - description: External HDMI pixel clock. > + - description: Parent clock for pixel clock > + > + clock-names: > + items: > + - const: noc_bus > + - const: channel0 > + - const: channel1 > + - const: dc_core > + - const: axi_core > + - const: ahb > + - const: hdmi_tx > + - const: dc_parent > + > + resets: > + items: > + - description: Reset for axi bus. > + - description: Reset for ahb bus. > + - description: Core reset of display controller. > + > + reset-names: > + items: > + - const: axi > + - const: ahb > + - const: core > + > + port: > + $ref: /schemas/graph.yaml#/properties/port > + > +required: > + - compatible > + - reg > + - interrupts > + - clocks > + - clock-names > + - resets > + - reset-names > + - port > + > +additionalProperties: false > + > +examples: > + - | > + dc8200: lcd-controller@29400000 { > + compatible = "starfive,jh7110-dc8200"; > + reg = <0x29400000 0x100>, <0x29400800 0x2000>; > + interrupts = <95>; > + clocks = <&syscrg 60>, > + <&voutcrg 7>, > + <&voutcrg 8>, > + <&voutcrg 4>, > + <&voutcrg 5>, > + <&voutcrg 6>, > + <&hdmitx0_pixelclk>, > + <&voutcrg 1>; > + clock-names = "noc_bus", "channel0", "channel1", > + "dc_core", "axi_core", "ahb", > + "hdmi_tx","dc_parent"; > + resets = <&voutcrg 0>, <&voutcrg 1>, <&voutcrg 2>; > + reset-names = "axi", "ahb", "core"; > + dc_out: port { > + #address-cells = <1>; > + #size-cells = <0>; > + dc_out_hdmi: endpoint@0 { > + reg = <0>; > + remote-endpoint = <&hdmi_in_dc>; > + }; > + }; > + }; > diff --git a/Documentation/devicetree/bindings/display/starfive/starfive,jh7110-inno-hdmi.yaml b/Documentation/devicetree/bindings/display/starfive/starfive,jh7110-inno-hdmi.yaml > new file mode 100644 > index 000000000..f6c473a10 > --- /dev/null > +++ b/Documentation/devicetree/bindings/display/starfive/starfive,jh7110-inno-hdmi.yaml > @@ -0,0 +1,85 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/display/starfive/starfive,jh7110-inno-hdmi.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Starfive JH7110 HDMI controller > + > +description: > + The StarFive JH7110 SoC uses the HDMI signal transmiter based on innosilicon IP > + to generate HDMI signal from its input and transmit the signal to the screen. > + > +maintainers: > + - Keith Zhao <keith.zhao@xxxxxxxxxxxxxxxx> > + > +properties: > + compatible: > + const: "starfive,jh7110-inno-hdmi" It does not look like you tested the bindings, at least after quick look. Please run `make dt_binding_check` (see Documentation/devicetree/bindings/writing-schema.rst for instructions). Maybe you need to update your dtschema and yamllint. Best regards, Krzysztof
