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Date:   Thu, 7 Apr 2022 18:20:41 +0200
From:   Valentin Caron <valentin.caron@...s.st.com>
To:     Alexandre Torgue <alexandre.torgue@...s.st.com>
CC:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Erwan Le Ray <erwan.leray@...s.st.com>,
        <devicetree@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH 1/2] ARM: dts: stm32: add RTC node on stm32mp131

Add RTC node with compatible, clock, and interrupt properties
on stm32mp131.

Add clk_rtc_k fixed clock for RTC.

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@...s.st.com>
Signed-off-by: Valentin Caron <valentin.caron@...s.st.com>
---
 arch/arm/boot/dts/stm32mp131.dtsi | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/arch/arm/boot/dts/stm32mp131.dtsi b/arch/arm/boot/dts/stm32mp131.dtsi
index 1708c79b5254..9b1c87edd613 100644
--- a/arch/arm/boot/dts/stm32mp131.dtsi
+++ b/arch/arm/boot/dts/stm32mp131.dtsi
@@ -75,6 +75,12 @@ clk_pll4_r: clk-pll4_r {
 			compatible = "fixed-clock";
 			clock-frequency = <99000000>;
 		};
+
+		clk_rtc_k: clk-rtc-k {
+			#clock-cells = <0>;
+			compatible = "fixed-clock";
+			clock-frequency = <32768>;
+		};
 	};
 
 	intc: interrupt-controller@...21000 {
@@ -218,6 +224,15 @@ iwdg2: watchdog@...02000 {
 			status = "disabled";
 		};
 
+		rtc: rtc@...04000 {
+			compatible = "st,stm32mp1-rtc";
+			reg = <0x5c004000 0x400>;
+			interrupts-extended = <&exti 19 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clk_pclk4>, <&clk_rtc_k>;
+			clock-names = "pclk", "rtc_ck";
+			status = "disabled";
+		};
+
 		bsec: efuse@...05000 {
 			compatible = "st,stm32mp15-bsec";
 			reg = <0x5c005000 0x400>;
-- 
2.25.1

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