linux-kernel - Re: [PATCH 2/3] dt-bindings: display: Add bindings for EBBG FT8719

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Message-ID: <2ab35af2-b067-4243-35ed-a592a7046374@linaro.org>
Date:   Sat, 7 May 2022 17:32:58 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Joel Selvaraj <jo@...amily.in>,
        Thierry Reding <thierry.reding@...il.com>,
        Sam Ravnborg <sam@...nborg.org>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Stanislav Jakubek <stano.jakubek@...il.com>,
        Corentin Labbe <clabbe@...libre.com>,
        Oleksij Rempel <linux@...pel-privat.de>,
        Linus Walleij <linus.walleij@...aro.org>,
        Hao Fang <fanghao11@...wei.com>
Cc:     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 2/3] dt-bindings: display: Add bindings for EBBG FT8719

On 06/05/2022 14:17, Joel Selvaraj wrote:
> Add bindings for the EBBG FT8719 6.18" 2246x1080 DSI video mode panel,
> which can be found on some Xiaomi Poco F1 phones. The backlight is
> managed through the QCOM WLED driver.
> 
> Signed-off-by: Joel Selvaraj <jo@...amily.in>
> ---
>  .../bindings/display/panel/ebbg,ft8719.yaml   | 78 +++++++++++++++++++
>  1 file changed, 78 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/panel/ebbg,ft8719.yaml
> 
> diff --git a/Documentation/devicetree/bindings/display/panel/ebbg,ft8719.yaml b/Documentation/devicetree/bindings/display/panel/ebbg,ft8719.yaml
> new file mode 100644
> index 000000000000..fac6c9692c55
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/panel/ebbg,ft8719.yaml
> @@ -0,0 +1,78 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/panel/ebbg,ft8719.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: EBBG FT8719 MIPI-DSI LCD panel
> +
> +maintainers:
> +  - Joel Selvaraj <jo@...amily.in>
> +
> +description: |
> +  The FT8719 panel from EBBG is a FHD+ LCD display panel with a resolution
> +  of 1080x2246. It is a video mode DSI panel. The backlight is managed
> +  through the QCOM WLED driver.
> +
> +allOf:
> +  - $ref: panel-common.yaml#
> +
> +properties:
> +  compatible:
> +    const: ebbg,ft8719
> +
> +  reg:
> +    description: DSI virtual channel of the peripheral

maxItems

> +
> +  reset-gpios:
> +    description: phandle of gpio for reset line

Skip description - it's obvious.

> +
> +  vddio-supply:
> +    description: phandle of the Power IC supply regulator

s/phandle of//

> +
> +  vddpos-supply:
> +    description: phandle of the positive boost supply regulator
> +
> +  vddneg-supply:
> +    description: phandle of the negative boost supply regulator
> +
> +  backlight: true
> +  port: true

Both should not be needed - they come from panel-common.yaml. They might
stay in list

> +
> +required:
> +  - compatible
> +  - reg
> +  - vddio-supply
> +  - vddpos-supply
> +  - vddneg-supply
> +  - reset-gpios
> +  - port
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |+

No need for +

> +    #include <dt-bindings/gpio/gpio.h>
> +    dsi0 {

Just dsi



Best regards,
Krzysztof