linux-kernel - Re: [PATCH v3 4/4] arm64: dts: meson-axg: add support for JetHub D1

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Message-ID: <83730df2-5104-bfff-949e-4499e0c2612a@baylibre.com>
Date:   Tue, 7 Sep 2021 09:09:08 +0200
From:   Neil Armstrong <narmstrong@...libre.com>
To:     Vyacheslav <adeep@...ina.in>, Kevin Hilman <khilman@...libre.com>
Cc:     linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 4/4] arm64: dts: meson-axg: add support for JetHub D1

Hi,

On 06/09/2021 17:07, Vyacheslav wrote:
> 06.09.2021 15:26, Neil Armstrong пишет:
>> On 04/09/2021 16:27, Vyacheslav Bocharov wrote:
>>> JetHome Jethub D1 (http://jethome.ru/jethub-d1) is a home automation
>>> controller with the following features:
>>>
>>> +
>>> +&spicc1 {
>>> +	status = "okay";
>>> +};
>> Why enabling it without pinctrl properties ?
> 
> spiccwas planned for use during the development of the device, but in fact it is not currently used. Pins exist on expand pad.
> 
> Its better to add pinctrl as below or leave spicc1 disabled?

As you want, if the HW is present and functional, usually it's enabled in the DT.

Neil

> 
> diff --git a/arch/arm64/boot/dts/amlogic/meson-axg-jethome-jethub-j100.dts b/arch/arm64/boot/dts/amlogic/meson-axg-jethome-jethub-j100.dts
> index bc10f3357c09..ecffc90d9884 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-axg-jethome-jethub-j100.dts
> +++ b/arch/arm64/boot/dts/amlogic/meson-axg-jethome-jethub-j100.dts
> @@ -313,6 +313,8 @@ &usb {
>  
>  &spicc1 {
>         status = "okay";
> +       pinctrl-0 = <&spi1_x_pins>, <&spi1_ss0_x_pins>;
> +       pinctrl-names = "default";
>  };
>  
>  &gpio {
> 
> 
> --
> 
> Vyacheslav
>