linux-kernel - [PATCH] arm64: versal-net: Update rtc calibration value

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Message-ID: <20250710061309.25601-1-harini.t@amd.com>
Date: Thu, 10 Jul 2025 11:43:09 +0530
From: Harini T <harini.t@....com>
To: <robh@...nel.org>, <krzk+dt@...nel.org>, <conor+dt@...nel.org>,
	<michal.simek@....com>
CC: <devicetree@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <git@....com>, Harini T <harini.t@....com>
Subject: [PATCH] arm64: versal-net: Update rtc calibration value

As per the design specification
"The 16-bit Seconds Calibration Value represents the number of
Oscillator Ticks that are required to measure the largest time period
that is less than or equal to 1 second.
For an oscillator that is 32.768kHz, this value will be 0x7FFF."

Signed-off-by: Harini T <harini.t@....com>
---
 arch/arm64/boot/dts/xilinx/versal-net.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/xilinx/versal-net.dtsi b/arch/arm64/boot/dts/xilinx/versal-net.dtsi
index fc9f49e57385..c037a7819967 100644
--- a/arch/arm64/boot/dts/xilinx/versal-net.dtsi
+++ b/arch/arm64/boot/dts/xilinx/versal-net.dtsi
@@ -556,7 +556,7 @@
 			reg = <0 0xf12a0000 0 0x100>;
 			interrupts = <0 200 4>, <0 201 4>;
 			interrupt-names = "alarm", "sec";
-			calibration = <0x8000>;
+			calibration = <0x7FFF>;
 		};
 
 		sdhci0: mmc@...40000 {
-- 
2.17.1