linux-kernel - Re: [PATCH 5/5] ARM: dts: Add LEGO MINDSTORTMS EV3 dts

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Message-ID: <aa18572c-2c9d-ee24-dcd2-8627ab7a9b83@lechnology.com>
Date:   Mon, 24 Oct 2016 21:56:50 -0500
From:   David Lechner <david@...hnology.com>
To:     Sekhar Nori <nsekhar@...com>, Kevin Hilman <khilman@...nel.org>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Russell King <linux@...linux.org.uk>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 5/5] ARM: dts: Add LEGO MINDSTORTMS EV3 dts

On 10/24/2016 10:50 AM, David Lechner wrote:
> On 10/24/2016 06:58 AM, Sekhar Nori wrote:
>> On Saturday 22 October 2016 12:06 AM, David Lechner wrote:
>>> +};
>>> +
>>> +&spi1 {
>>> +    status = "okay";
>>> +    pinctrl-names = "default";
>>> +    pinctrl-0 = <&spi1_pins>, <&spi1_cs0_pin>;
>>> +
>>> +    /* TODO: LCD Display goes here */
>>
>> Add this node when you actually have display working.
>
> What if we set this up as a spidev node instead? This way the display
> could be used from userspace without a driver.
>

To answer my own question, it seems that specifying "spidev" in 
devicetree is frowned upon since it does not "describe the hardware".