Re: [PATCH v5 1/4] dt-bindings: display: mediatek: dsi: Convert dsi_dtbinding to .yaml

[Rex-BC Chen]

On Tue, 2022-05-03 at 13:01 -0500, Rob Herring wrote:
> On Thu, Apr 28, 2022 at 09:37:50PM +0800, Rex-BC Chen wrote:
> > From: Xinlei Lee <xinlei.lee@xxxxxxxxxxxx>
> > 
> > Convert mediatek,dsi.txt to mediatek,dsi.yaml format
> > 
> > Signed-off-by: Xinlei Lee <xinlei.lee@xxxxxxxxxxxx>
> > Signed-off-by: Rex-BC Chen <rex-bc.chen@xxxxxxxxxxxx>
> > ---
> >  .../display/mediatek/mediatek,dsi.txt         |  62 ---------
> >  .../display/mediatek/mediatek,dsi.yaml        | 122
> > ++++++++++++++++++
> >  2 files changed, 122 insertions(+), 62 deletions(-)
> >  delete mode 100644
> > Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.txt
> >  create mode 100644
> > Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.yam
> > l
> > 
> > diff --git
> > a/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.t
> > xt
> > b/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.t
> > xt
> > deleted file mode 100644
> > index 36b01458f45c..000000000000
> > ---
> > a/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.t
> > xt
> > +++ /dev/null
> > @@ -1,62 +0,0 @@
> > -Mediatek DSI Device
> > -===================
> > -
> > -The Mediatek DSI function block is a sink of the display subsystem
> > and can
> > -drive up to 4-lane MIPI DSI output. Two DSIs can be synchronized
> > for dual-
> > -channel output.
> > -
> > -Required properties:
> > -- compatible: "mediatek,<chip>-dsi"
> > -- the supported chips are mt2701, mt7623, mt8167, mt8173 and
> > mt8183.
> > -- reg: Physical base address and length of the controller's
> > registers
> > -- interrupts: The interrupt signal from the function block.
> > -- clocks: device clocks
> > -  See Documentation/devicetree/bindings/clock/clock-bindings.txt
> > for details.
> > -- clock-names: must contain "engine", "digital", and "hs"
> > -- phys: phandle link to the MIPI D-PHY controller.
> > -- phy-names: must contain "dphy"
> > -- port: Output port node with endpoint definitions as described in
> > -  Documentation/devicetree/bindings/graph.txt. This port should be
> > connected
> > -  to the input port of an attached DSI panel or DSI-to-eDP encoder
> > chip.
> > -
> > -Optional properties:
> > -- resets: list of phandle + reset specifier pair, as described in
> > [1].
> > -
> > -[1] Documentation/devicetree/bindings/reset/reset.txt
> > -
> > -MIPI TX Configuration Module
> > -============================
> > -
> > -See phy/mediatek,dsi-phy.yaml
> > -
> > -Example:
> > -
> > -mipi_tx0: mipi-dphy@10215000 {
> > -	compatible = "mediatek,mt8173-mipi-tx";
> > -	reg = <0 0x10215000 0 0x1000>;
> > -	clocks = <&clk26m>;
> > -	clock-output-names = "mipi_tx0_pll";
> > -	#clock-cells = <0>;
> > -	#phy-cells = <0>;
> > -	drive-strength-microamp = <4600>;
> > -	nvmem-cells= <&mipi_tx_calibration>;
> > -	nvmem-cell-names = "calibration-data";
> > -};
> > -
> > -dsi0: dsi@1401b000 {
> > -	compatible = "mediatek,mt8173-dsi";
> > -	reg = <0 0x1401b000 0 0x1000>;
> > -	interrupts = <GIC_SPI 192 IRQ_TYPE_LEVEL_LOW>;
> > -	clocks = <&mmsys MM_DSI0_ENGINE>, <&mmsys MM_DSI0_DIGITAL>,
> > -		 <&mipi_tx0>;
> > -	clock-names = "engine", "digital", "hs";
> > -	resets = <&mmsys MT8173_MMSYS_SW0_RST_B_DISP_DSI0>;
> > -	phys = <&mipi_tx0>;
> > -	phy-names = "dphy";
> > -
> > -	port {
> > -		dsi0_out: endpoint {
> > -			remote-endpoint = <&panel_in>;
> > -		};
> > -	};
> > -};
> > diff --git
> > a/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.y
> > aml
> > b/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.y
> > aml
> > new file mode 100644
> > index 000000000000..2ca9229ef69e
> > --- /dev/null
> > +++
> > b/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.y
> > aml
> > @@ -0,0 +1,122 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: 
> > https://urldefense.com/v3/__http://devicetree.org/schemas/display/mediatek/mediatek,dsi.yaml*__;Iw!!CTRNKA9wMg0ARbw!w60__6oza0dggkQt6zWF-ZnYUKobclO7i3x9kiS1CETGQlCVcifs6UfqytY8vunKIJlM$
> >  
> > +$schema: 
> > https://urldefense.com/v3/__http://devicetree.org/meta-schemas/core.yaml*__;Iw!!CTRNKA9wMg0ARbw!w60__6oza0dggkQt6zWF-ZnYUKobclO7i3x9kiS1CETGQlCVcifs6UfqytY8vns85I56$
> >  
> > +
> > +title: MediaTek DSI Controller Device Tree Bindings
> > +
> > +maintainers:
> > +  - Chun-Kuang Hu <chunkuang.hu@xxxxxxxxxx>
> > +  - Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
> > +  - Jitao Shi <jitao.shi@xxxxxxxxxxxx>
> > +  - Xinlei Lee <xinlei.lee@xxxxxxxxxxxx>
> > +
> > +description: |
> > +  The MediaTek DSI function block is a sink of the display
> > subsystem and can
> > +  drive up to 4-lane MIPI DSI output. Two DSIs can be synchronized
> > for dual-
> > +  channel output.
> > +
> > +allOf:
> > +  - $ref: /schemas/display/dsi-controller.yaml#
> > +
> > +properties:
> > +  compatible:
> > +    enum:
> > +      - mediatek,mt2701-dsi
> > +      - mediatek,mt7623-dsi
> > +      - mediatek,mt8167-dsi
> > +      - mediatek,mt8173-dsi
> > +      - mediatek,mt8183-dsi
> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  interrupts:
> > +    maxItems: 1
> > +
> > +  power-domains:
> > +    maxItems: 1
> > +
> > +  clocks:
> > +    items:
> > +      - description: Engine Clock
> > +      - description: Digital Clock
> > +      - description: HS Clock
> > +
> > +  clock-names:
> > +    items:
> > +      - const: engine
> > +      - const: digital
> > +      - const: hs
> > +
> > +  resets:
> > +    maxItems: 1
> > +
> > +  phys:
> > +    maxItems: 1
> > +
> > +  phy-names:
> > +    items:
> > +      - const: dphy
> > +
> > +  port:
> > +    $ref: /schemas/graph.yaml#/properties/port
> > +    description:
> > +      Output port node. This port should be connected to the input
> > +      port of an attached DSI panel or DSI-to-eDP encoder chip.
> > +
> > +
> 
> 1 blank line
> 
> > +  "#address-cells":
> > +    const: 2
> > +
> > +  "#size-cells":
> > +    const: 2
> 
> Did you try adding these? Because they are wrong and will contradict 
> dsi-controller.yaml.
> 

Hello Rob,

Sorry, I response something wrong in previous letter.
We could have sub nodes in mediatek dsi.
But we do not need to define this:
  "#address-cells":
    const: 2

  "#size-cells":
    const: 2

I will drop them. Thanks!

BRs,
Rex

> Rob