linux-kernel - Re: [PATCH 1/3] arm64: dts: allwinner: a527: cubie-a5e: Drop external 32.768 KHz crystal

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Message-ID: <6190895.lOV4Wx5bFT@jernej-laptop>
Date: Sat, 13 Sep 2025 13:30:10 +0200
From: Jernej Škrabec <jernej.skrabec@...il.com>
To: Chen-Yu Tsai <wens@...e.org>, Jernej Skrabec <jernej@...nel.org>,
 Samuel Holland <samuel@...lland.org>,
 Andre Przywara <andre.przywara@....com>, Chen-Yu Tsai <wens@...nel.org>
Cc: linux-sunxi@...ts.linux.dev, devicetree@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject:
 Re: [PATCH 1/3] arm64: dts: allwinner: a527: cubie-a5e: Drop external 32.768
 KHz crystal

Dne sobota, 13. september 2025 ob 12:24:48 Srednjeevropski poletni čas je Chen-Yu Tsai napisal(a):
> From: Chen-Yu Tsai <wens@...e.org>
> 
> The Radxa Cubie A5E has empty pads for a 32.768 KHz crystal, but it is
> left unpopulated, as per the schematics and seen on board images. A dead
> give away is the RTC's LOSC auto switch register showing the external
> OSC to be abnormal.
> 
> Drop the external crystal from the device tree. It was not referenced
> anyway.
> 
> Fixes: c2520cd032ae ("arm64: dts: allwinner: a523: add Radxa A5E support")
> Signed-off-by: Chen-Yu Tsai <wens@...e.org>

Reviewed-by: Jernej Skrabec <jernej.skrabec@...il.com>

Best regards,
Jernej

> ---
>  arch/arm64/boot/dts/allwinner/sun55i-a527-cubie-a5e.dts | 7 -------
>  1 file changed, 7 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/allwinner/sun55i-a527-cubie-a5e.dts b/arch/arm64/boot/dts/allwinner/sun55i-a527-cubie-a5e.dts
> index 71074b072184..e333bbaf01d3 100644
> --- a/arch/arm64/boot/dts/allwinner/sun55i-a527-cubie-a5e.dts
> +++ b/arch/arm64/boot/dts/allwinner/sun55i-a527-cubie-a5e.dts
> @@ -24,13 +24,6 @@ chosen {
>  		stdout-path = "serial0:115200n8";
>  	};
>  
> -	ext_osc32k: ext-osc32k-clk {
> -		#clock-cells = <0>;
> -		compatible = "fixed-clock";
> -		clock-frequency = <32768>;
> -		clock-output-names = "ext_osc32k";
> -	};
> -
>  	leds {
>  		compatible = "gpio-leds";
>  
>