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Subject: Re: [PATCH 6/8] arm64: dts: meson: disable vrtc for VIM3L boards
 meson-khadas-vim3
To:     Artem Lapkin <email2tema@gmail.com>
Cc:     khilman@baylibre.com, robh+dt@kernel.org, jbrunet@baylibre.com,
        martin.blumenstingl@googlemail.com, devicetree@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org,
        linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org,
        art@khadas.com, nick@khadas.com, gouwa@khadas.com
References: <20200925033017.1790973-1-art@khadas.com>
 <20200925033017.1790973-7-art@khadas.com>
From:   Neil Armstrong <narmstrong@baylibre.com>
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Organization: Baylibre
Message-ID: <0b81b4e6-57e7-3191-b7e5-3ec5e69b20ac@baylibre.com>
Date:   Fri, 25 Sep 2020 09:44:32 +0200
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In-Reply-To: <20200925033017.1790973-7-art@khadas.com>
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Hi,

On 25/09/2020 05:30, Artem Lapkin wrote:
> vrtc not used for meson-khadas-vim3
> 
> Signed-off-by: Artem Lapkin <art@khadas.com>
> ---
>  arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi b/arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi
> index 3111bf35c0f..81bb88a76d5 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi
> @@ -284,6 +284,10 @@ &pwm_ef {
>          pinctrl-names = "default";
>  };
>  
> +&vrtc {
> +	status = "disabled";
> +};
> +
>  &saradc {
>  	status = "okay";
>  	vref-supply = <&vddao_1v8>;
> 

The VRTC is one of the default suspend wake-up sources, so why would you disable it ?

If it collides with the real RTC, add aliases to move the vrtc in rtc1 and set the real RTC as rtc0.

 »       aliases·{
+»       »       rtc0·=·&rtc0;
+»       »       rtc1·=·&vrtc;
 »       };

Neil