linux-kernel - Re: [EXT] Re: [PATCH v3 1/2] dt-bindings: display: panel: Add support for Raydium RM67191 panel

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Date:   Fri, 21 Jun 2019 12:46:02 -0300
From:   Fabio Estevam <festevam@...il.com>
To:     Robert Chiras <robert.chiras@....com>
Cc:     dl-linux-imx <linux-imx@....com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "sam@...nborg.org" <sam@...nborg.org>,
        "daniel@...ll.ch" <daniel@...ll.ch>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "thierry.reding@...il.com" <thierry.reding@...il.com>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        "airlied@...ux.ie" <airlied@...ux.ie>
Subject: Re: [EXT] Re: [PATCH v3 1/2] dt-bindings: display: panel: Add support
 for Raydium RM67191 panel

Hi Robert,

On Fri, Jun 21, 2019 at 11:16 AM Robert Chiras <robert.chiras@....com> wrote:

> From what I've seen in the schematics, the power lines on the DSI port
> on all the i.MX8 cores are coming from a PMIC providing power for all
> the peripherals. Since I didn't find a way to cut the power on a single
> peripheral (like DSI, for example) it doesn't make sense for power-
> supply property. For now, at least.

This panel driver is not supposed to only work with i.MX8 NXP reference boards.

The dt-bindings should be as accurate as possible from day one, so
describing the power-supply is important.

Please look at the panel datasheet and describe the required power
supplies accordingly.

Thanks