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

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Message-Id: <20250913102450.3935943-1-wens@kernel.org>
Date: Sat, 13 Sep 2025 18:24:48 +0800
From: Chen-Yu Tsai <wens@...nel.org>
To: Chen-Yu Tsai <wens@...e.org>,
	Jernej Skrabec <jernej@...nel.org>,
	Samuel Holland <samuel@...lland.org>,
	Andre Przywara <andre.przywara@....com>
Cc: linux-sunxi@...ts.linux.dev,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 1/3] arm64: dts: allwinner: a527: cubie-a5e: Drop external 32.768 KHz crystal

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>
---
 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";
 
-- 
2.39.5