linux-kernel - Re: [PATCH v2 1/2] dt-bindings: display: panel: Add Raydium RM69380

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Date: Mon, 15 Apr 2024 18:07:03 +0100
From: Conor Dooley <conor@...nel.org>
To: David Wronek <david@...nlining.org>
Cc: Neil Armstrong <neil.armstrong@...aro.org>,
	Jessica Zhang <quic_jesszhan@...cinc.com>,
	Sam Ravnborg <sam@...nborg.org>, David Airlie <airlied@...il.com>,
	Daniel Vetter <daniel@...ll.ch>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Marijn Suijten <marijn.suijten@...ainline.org>,
	Konrad Dybcio <konradybcio@...nel.org>,
	dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, ~postmarketos/upstreaming@...ts.sr.ht,
	phone-devel@...r.kernel.org
Subject: Re: [PATCH v2 1/2] dt-bindings: display: panel: Add Raydium RM69380

On Mon, Apr 15, 2024 at 06:10:41PM +0200, David Wronek wrote:
> Raydium RM69380 is a display driver IC used to drive OLED DSI panels.
> Add a dt-binding for it.
> 
> Signed-off-by: David Wronek <david@...nlining.org>
> ---
>  .../bindings/display/panel/raydium,rm69380.yaml    | 91 ++++++++++++++++++++++
>  1 file changed, 91 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/display/panel/raydium,rm69380.yaml b/Documentation/devicetree/bindings/display/panel/raydium,rm69380.yaml
> new file mode 100644
> index 000000000000..0ac7d033cbe0
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/panel/raydium,rm69380.yaml
> @@ -0,0 +1,91 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/panel/raydium,rm69380.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Raydium RM6380-based DSI display panels
> +
> +maintainers:
> +  - David Wronek <david@...nlining.org>
> +
> +description:
> +  The Raydium RM69380 is a generic DSI panel IC used to control
> +  OLED panels.
> +
> +allOf:
> +  - $ref: panel-common-dual.yaml#
> +
> +properties:
> +  compatible:
> +    items:
> +      - enum:
> +          - lenovo,j716f-edo-rm69380
> +      - const: raydium,rm69380
> +    description: This indicates the panel manufacturer of the panel
> +      that is in turn using the RM69380 panel driver. The compatible
> +      string determines how the RM69380 panel driver shall be configured
> +      to work with the indicated panel. The raydium,rm69380 compatible shall
> +      always be provided as a fallback.
> +
> +  avdd-supply:
> +    description: Analog voltage rail
> +
> +  vddio-supply:
> +    description: I/O voltage rail
> +
> +  reset-gpios:
> +    maxItems: 1
> +    description: phandle of gpio for reset line - This should be active low
> +
> +  ports: true
> +  reg: true

Where is reg defined? I briefly checked the two panel-common bindings
and didn't see it.

Cheers,
Conor.

> +
> +required:
> +  - compatible
> +  - reg
> +  - avdd-supply
> +  - vddio-supply
> +  - reset-gpios
> +  - ports
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/gpio/gpio.h>
> +
> +    dsi {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        panel@0 {
> +            compatible = "lenovo,j716f-edo-rm69380", "raydium,rm69380";
> +            reg = <0>;
> +
> +            avdd-supply = <&panel_avdd_regulator>;
> +            vddio-supply = <&vreg_l14a>;
> +            reset-gpios = <&tlmm 75 GPIO_ACTIVE_LOW>;
> +
> +            ports {
> +                #address-cells = <1>;
> +                #size-cells = <0>;
> +
> +                port@0 {
> +                    reg = <0>;
> +                    panel_in_0: endpoint {
> +                        remote-endpoint = <&mdss_dsi0_out>;
> +                    };
> +                };
> +
> +                port@1 {
> +                    reg = <1>;
> +                    panel_in_1: endpoint {
> +                        remote-endpoint = <&mdss_dsi1_out>;
> +                    };
> +                };
> +            };
> +        };
> +    };
> +
> +...
> 
> -- 
> 2.44.0
> 

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