From: Gray Huang <gray.huang@wesion.com>
Date: Wed, 29 Apr 2026 06:37:07 +0000 (+0800)
Subject: arm64: dts: rockchip: Add HYM8563 RTC for Khadas Edge 2L
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e477eff6303b3c5cb9bdbe5f6568ce1ef74b5f66;p=thirdparty%2Fkernel%2Flinux.git

arm64: dts: rockchip: Add HYM8563 RTC for Khadas Edge 2L

The Khadas Edge 2L uses an on-board HYM8563 RTC connected to
I2C2. Enable it and expose its 32.768kHz clock output so later
board-level patches can reference it as the LPO clock source for
the AP6275P wireless module.

Mark the RTC as a wakeup source as well.

Signed-off-by: Gray Huang <gray.huang@wesion.com>
Link: https://patch.msgid.link/20260429063712.2150938-3-gray.huang@wesion.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---

diff --git a/arch/arm64/boot/dts/rockchip/rk3576-khadas-edge-2l.dts b/arch/arm64/boot/dts/rockchip/rk3576-khadas-edge-2l.dts
index c39c7f90b6fba..cf846b24a24a8 100644
--- a/arch/arm64/boot/dts/rockchip/rk3576-khadas-edge-2l.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3576-khadas-edge-2l.dts
@@ -470,6 +470,18 @@
 	};
 };
 
+&i2c2 {
+	status = "okay";
+
+	hym8563: rtc@51 {
+		compatible = "haoyu,hym8563";
+		reg = <0x51>;
+		#clock-cells = <0>;
+		clock-output-names = "hym8563";
+		wakeup-source;
+	};
+};
+
 &sdhci {
 	bus-width = <8>;
 	no-sdio;