linux-kernel - [PATCH 6/6] ARM: dts: stm32: add RTC LSCO support on stm32mp135f-dk

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Message-ID: <20220504130617.331290-5-valentin.caron@foss.st.com>
Date:   Wed, 4 May 2022 15:06:17 +0200
From:   Valentin Caron <valentin.caron@...s.st.com>
To:     Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>
CC:     Gabriel Fernandez <gabriel.fernandez@...s.st.com>,
        Amelie Delaunay <amelie.delaunay@...s.st.com>,
        Valentin Caron <valentin.caron@...s.st.com>,
        <linux-rtc@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH 6/6] ARM: dts: stm32: add RTC LSCO support on stm32mp135f-dk

From: Gabriel Fernandez <gabriel.fernandez@...s.st.com>

Add LSCO support on stm32mp135f-dk board. LSCO output is mapped on
RTC_OUT2_RMP (PI1), directly routed on LPO_IN pin of Wifi/Bluetooth
module.

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@...s.st.com>
Signed-off-by: Valentin Caron <valentin.caron@...s.st.com>
---
 arch/arm/boot/dts/stm32mp13-pinctrl.dtsi | 6 ++++++
 arch/arm/boot/dts/stm32mp135f-dk.dts     | 4 ++++
 2 files changed, 10 insertions(+)

diff --git a/arch/arm/boot/dts/stm32mp13-pinctrl.dtsi b/arch/arm/boot/dts/stm32mp13-pinctrl.dtsi
index d2472cd8f1d0..0aaafd529404 100644
--- a/arch/arm/boot/dts/stm32mp13-pinctrl.dtsi
+++ b/arch/arm/boot/dts/stm32mp13-pinctrl.dtsi
@@ -6,6 +6,12 @@
 #include <dt-bindings/pinctrl/stm32-pinfunc.h>
 
 &pinctrl {
+	rtc_out2_rmp_pins_a: rtc-out2-rmp-pins-0 {
+		pins {
+			pinmux = <STM32_PINMUX('I', 1, ANALOG)>; /* RTC_OUT2_RMP */
+		};
+	};
+
 	sdmmc1_b4_pins_a: sdmmc1-b4-0 {
 		pins {
 			pinmux = <STM32_PINMUX('C', 8, AF12)>, /* SDMMC1_D0 */
diff --git a/arch/arm/boot/dts/stm32mp135f-dk.dts b/arch/arm/boot/dts/stm32mp135f-dk.dts
index 09d6226d598f..de9fd89fce5c 100644
--- a/arch/arm/boot/dts/stm32mp135f-dk.dts
+++ b/arch/arm/boot/dts/stm32mp135f-dk.dts
@@ -12,6 +12,7 @@
 #include "stm32mp135.dtsi"
 #include "stm32mp13xf.dtsi"
 #include "stm32mp13-pinctrl.dtsi"
+#include <dt-bindings/rtc/rtc-stm32.h>
 
 / {
 	model = "STMicroelectronics STM32MP135F-DK Discovery Board";
@@ -63,6 +64,9 @@ &iwdg2 {
 };
 
 &rtc {
+	st,lsco = <RTC_OUT2_RMP>;
+	pinctrl-0 = <&rtc_out2_rmp_pins_a>;
+	pinctrl-names = "default";
 	status = "okay";
 };
 
-- 
2.25.1