linux-kernel - Re: [PATCH v2 4/8] dt-bindings: gnss: add u-blox binding

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Date:   Wed, 30 May 2018 22:58:05 -0500
From:   Rob Herring <robh@...nel.org>
To:     Johan Hovold <johan@...nel.org>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Mark Rutland <mark.rutland@....com>,
        Andreas Kemnade <andreas@...nade.info>,
        Arnd Bergmann <arnd@...db.de>,
        "H . Nikolaus Schaller" <hns@...delico.com>,
        Pavel Machek <pavel@....cz>,
        Marcel Holtmann <marcel@...tmann.org>,
        Sebastian Reichel <sebastian.reichel@...labora.co.uk>,
        Tony Lindgren <tony@...mide.com>, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org
Subject: Re: [PATCH v2 4/8] dt-bindings: gnss: add u-blox binding

On Wed, May 30, 2018 at 12:32:38PM +0200, Johan Hovold wrote:
> Add binding for u-blox GNSS receivers.
> 
> Note that the u-blox product names encodes form factor (e.g. "neo"),
> chipset (e.g. "8") and variant (e.g. "q"), but that only formfactor and
> chipset is used for the compatible strings (for now).
> 
> Signed-off-by: Johan Hovold <johan@...nel.org>
> ---
>  .../devicetree/bindings/gnss/u-blox.txt       | 44 +++++++++++++++++++
>  .../devicetree/bindings/vendor-prefixes.txt   |  1 +
>  2 files changed, 45 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/gnss/u-blox.txt
> 
> diff --git a/Documentation/devicetree/bindings/gnss/u-blox.txt b/Documentation/devicetree/bindings/gnss/u-blox.txt
> new file mode 100644
> index 000000000000..caef9ace0b0c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/gnss/u-blox.txt
> @@ -0,0 +1,44 @@
> +u-blox GNSS Receiver DT binding
> +
> +The u-blox GNSS receivers can use UART, DDC (I2C), SPI and USB interfaces.
> +
> +Please see Documentation/devicetree/bindings/gnss/gnss.txt for generic
> +properties.
> +
> +Required properties:
> +
> +- compatible 	: Must be one of

mixture of space and tab here.

> +
> +			"u-blox,neo-8"
> +			"u-blox,neo-m8"
> +
> +- vcc-supply	: Main voltage regulator
> +
> +Required properties (DDC):
> +- reg		: DDC (I2C) slave address
> +
> +Required properties (SPI):
> +- reg		: SPI chip select address
> +
> +Required properties (USB):
> +- reg		: Number of the USB hub port or the USB host-controller port
> +                  to which this device is attached
> +
> +Optional properties:
> +
> +- timepulse-gpios	: Time pulse GPIO
> +- u-blox,extint-gpios	: External interrupt GPIO

This should be interrupts property instead of a gpio.

> +- v-bckp-supply	: Backup voltage regulator
> +
> +Example:
> +
> +serial@...4 {
> +	compatible = "ns16550a";
> +
> +	gnss {
> +		compatible = "u-blox,neo-8";
> +
> +		v-bckp-supply = <&gnss_v_bckp_reg>;
> +		vcc-supply = <&gnss_vcc_reg>;
> +	};
> +};
> diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
> index b5f978a4cac6..2128dfdf73f1 100644
> --- a/Documentation/devicetree/bindings/vendor-prefixes.txt
> +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
> @@ -374,6 +374,7 @@ tronsmart	Tronsmart
>  truly	Truly Semiconductors Limited
>  tsd	Theobroma Systems Design und Consulting GmbH
>  tyan	Tyan Computer Corporation
> +u-blox	u-blox
>  ucrobotics	uCRobotics
>  ubnt	Ubiquiti Networks
>  udoo	Udoo
> -- 
> 2.17.0
>