linux-kernel - Re: [PATCH v6 4/5] ARM: dts: da850-lcdk: add the vga-bridge node

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Date:   Tue, 13 Dec 2016 11:18:45 +0100
From:   Bartosz Golaszewski <bgolaszewski@...libre.com>
To:     Tomi Valkeinen <tomi.valkeinen@...com>
Cc:     Jyri Sarha <jsarha@...com>, David Airlie <airlied@...ux.ie>,
        Kevin Hilman <khilman@...libre.com>,
        Michael Turquette <mturquette@...libre.com>,
        Sekhar Nori <nsekhar@...com>, Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>,
        Mark Rutland <mark.rutland@....com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Peter Ujfalusi <peter.ujfalusi@...com>,
        Russell King <linux@...linux.org.uk>,
        LKML <linux-kernel@...r.kernel.org>,
        arm-soc <linux-arm-kernel@...ts.infradead.org>,
        linux-drm <dri-devel@...ts.freedesktop.org>,
        linux-devicetree <devicetree@...r.kernel.org>
Subject: Re: [PATCH v6 4/5] ARM: dts: da850-lcdk: add the vga-bridge node

2016-12-13 9:46 GMT+01:00 Tomi Valkeinen <tomi.valkeinen@...com>:
> Hi,
>
> On 12/12/16 15:05, Bartosz Golaszewski wrote:
>
>> +&lcdc {
>> +     status = "okay";
>> +     pinctrl-names = "default";
>> +     pinctrl-0 = <&lcd_pins>;
>> +
>> +     ports {
>> +             #address-cells = <1>;
>> +             #size-cells = <0>;
>> +
>> +             lcdc_out: port@1 {
>> +                     #address-cells = <1>;
>> +                     #size-cells = <0>;
>> +                     reg = <1>;
>> +
>> +                     lcdc_out_vga: endpoint {
>> +                             reg = <0>;
>> +                             remote-endpoint = <&vga_bridge_in>;
>> +                     };
>> +             };
>> +     };
>> +};
>>
>
> This is not correct. LCDC has just one output, so port@1 doesn't make
> sense. It's port@0. But with just one port, you can leave "ports" away.
> And you don't need the port's label for anything, if I'm not mistaken. So:
>
> &lcdc {
>         status = "okay";
>         pinctrl-names = "default";
>         pinctrl-0 = <&lcd_pins>;
>
>         port {
>                 lcdc_out_vga: endpoint {
>                         remote-endpoint = <&vga_bridge_in>;
>                 };
>         };
> };
>
>  Tomi
>

Right, fixed in v7.

Thanks,
Bartosz