linux-kernel - Re: [PATCH v4 3/3] dt-bindings: Add INNOLUX P097PFG panel bindings

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Message-ID: <CACvgo51zSBdBZWgsNAg+e0uRnjuFU8sNOXKks6nUf4GQag+SoA@mail.gmail.com>
Date:   Wed, 14 Mar 2018 12:18:27 +0000
From:   Emil Velikov <emil.l.velikov@...il.com>
To:     Lin Huang <hl@...k-chips.com>
Cc:     Thierry Reding <thierry.reding@...il.com>,
        Brian Norris <briannorris@...omium.org>,
        Rob Herring <robh+dt@...nel.org>,
        Sean Paul <seanpaul@...omium.org>,
        David Airlie <airlied@...ux.ie>,
        "Linux-Kernel@...r. Kernel. Org" <linux-kernel@...r.kernel.org>,
        ML dri-devel <dri-devel@...ts.freedesktop.org>
Subject: Re: [PATCH v4 3/3] dt-bindings: Add INNOLUX P097PFG panel bindings

On 14 March 2018 at 09:12, Lin Huang <hl@...k-chips.com> wrote:
> From: huang lin <hl@...k-chips.com>
>
> The Innolux P097PFG panel is 9.7" panel with 1536X2048
> resolution, it reuse P079ZCA panel driver, so improve
> p079ZCA dt-binding to support P097PFG.
>
> Change-Id: I8704914898fe53b734d31fbe646df8aa5fd8b30d
> Signed-off-by: Lin Huang <hl@...k-chips.com>
> ---
> Changes in v2:
> - None
> Changes in v3:
> - None
> Changes in v4:
> - None
>
>  .../devicetree/bindings/display/panel/innolux,p079zca.txt     | 11 +++++++++--
>  1 file changed, 9 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/display/panel/innolux,p079zca.txt b/Documentation/devicetree/bindings/display/panel/innolux,p079zca.txt
> index d0f5516..8cadd8c 100644
> --- a/Documentation/devicetree/bindings/display/panel/innolux,p079zca.txt
> +++ b/Documentation/devicetree/bindings/display/panel/innolux,p079zca.txt
> @@ -1,13 +1,18 @@
>  Innolux P079ZCA 7.85" 768x1024 TFT LCD panel
> +Innolux P097PFG 9.7" 1536x2048 TFT LCD panel
>
>  Required properties:
> -- compatible: should be "innolux,p079zca"
> +- compatible: should be should be one of the following.
> +    -"innolux,p079zca" for Innolux 7.9" P079ZCA 768*1024 panel
> +    -"innolux,p097pfg" for Innolux 9.7" P097PFG 1536*2048 panel
>  - reg: DSI virtual channel of the peripheral
> -- power-supply: phandle of the regulator that provides the supply voltage
>  - enable-gpios: panel enable gpio
>
>  Optional properties:
>  - backlight: phandle of the backlight device attached to the panel
> +- power-supply: phandle of the regulator that provides the supply voltage
> +- avdd-supply: phandle of the regulator that provides positive voltage
> +- avee-supply: phandle of the regulator that provides negative voltage
>
Guess that answers my required/optional question earlier.
Currently the code assumes that all of these are required. And will
crash badly if any are missing.

-Emil