linux-kernel - Re: [PATCH] ARM: DTS: imx53: Add support for imx53 HSC/DDC boards from K+P

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Message-ID: <CAOMZO5AexXNEGVoXa9K_GAm+aFLNRQOXOhF_SdKAjV1qmuD2nA@mail.gmail.com>
Date:   Wed, 9 May 2018 22:10:41 -0300
From:   Fabio Estevam <festevam@...il.com>
To:     Lukasz Majewski <lukma@...x.de>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Russell King <linux@...linux.org.uk>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <kernel@...gutronix.de>,
        Fabio Estevam <fabio.estevam@....com>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] ARM: DTS: imx53: Add support for imx53 HSC/DDC boards
 from K+P

Hi Lukasz,

On Wed, May 9, 2018 at 12:34 PM, Lukasz Majewski <lukma@...x.de> wrote:

> +&iomuxc {
> +       imx53-kp-ddc {

No need for keeping this imx53-kp-ddc.

> diff --git a/arch/arm/boot/dts/imx53-kp-hsc.dts b/arch/arm/boot/dts/imx53-kp-hsc.dts
> new file mode 100644
> index 000000000000..fff358395c9d
> --- /dev/null
> +++ b/arch/arm/boot/dts/imx53-kp-hsc.dts
> @@ -0,0 +1,53 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright 2018
> + * Lukasz Majewski, DENX Software Engineering, lukma@...x.de
> + */
> +
> +/dts-v1/;
> +#include "imx53-kp.dtsi"
> +
> +/ {
> +       model = "K+P imx53 HSC";
> +       compatible = "kiebackpeter,imx53-hsc", "fsl,imx53";
> +

No need for this blank line.

> +};
> +
> +&fec {
> +       status = "okay";

We usually put the status in the last line.

> +       gpio_buttons {
> +               compatible = "gpio-keys";
> +               #address-cells = <1>;
> +               #size-cells = <0>;
> +               pinctrl-names = "default";
> +               pinctrl-0 = <&pinctrl_gpiobuttons>;
> +
> +               button@1 {

You pass @1 without a reg property. This triggers a warning when
building with W=1.

You could remove the @1.

Please make sure this patch does not introduce any W=1 dtc warning.

> +&iomuxc {
> +       pinctrl-names = "default";
> +       pinctrl-0 = <&pinctrl_kp_common>;
> +
> +       imx53-kp-common {

No need for this  imx53-kp-common

> +&uart4 {
> +       pinctrl-names = "default";
> +       pinctrl-0 = <&pinctrl_uart4>;
> +

No need for this blank line.