linux-kernel - [PATCH 1/2] ARM: dts: imx6dl-yapp43: Enable pwm-beeper on boards with speaker

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Message-ID: <20251105152555.1992513-1-michal.vokac@ysoft.com>
Date: Wed,  5 Nov 2025 16:25:53 +0100
From: Michal Vokáč <michal.vokac@...ft.com>
To: Shawn Guo <shawnguo@...nel.org>
Cc: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	devicetree@...r.kernel.org,
	imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Michal Vokáč <michal.vokac@...ft.com>
Subject: [PATCH 1/2] ARM: dts: imx6dl-yapp43: Enable pwm-beeper on boards with speaker

Lynx, Pegasus and Pegasus+ boards have a speaker connected to the PWM3.
Enable a pwm-beeper on these boards so the system can produce simple
sounds.

Signed-off-by: Michal Vokáč <michal.vokac@...ft.com>
---
 .../boot/dts/nxp/imx/imx6dl-yapp4-lynx.dts    |  8 ++++++++
 .../dts/nxp/imx/imx6dl-yapp43-common.dtsi     | 19 +++++++++++++++++++
 .../boot/dts/nxp/imx/imx6q-yapp4-pegasus.dts  |  8 ++++++++
 .../dts/nxp/imx/imx6qp-yapp4-pegasus-plus.dts |  8 ++++++++
 4 files changed, 43 insertions(+)

diff --git a/arch/arm/boot/dts/nxp/imx/imx6dl-yapp4-lynx.dts b/arch/arm/boot/dts/nxp/imx/imx6dl-yapp4-lynx.dts
index 5c2cd517589b..0a6b668428a3 100644
--- a/arch/arm/boot/dts/nxp/imx/imx6dl-yapp4-lynx.dts
+++ b/arch/arm/boot/dts/nxp/imx/imx6dl-yapp4-lynx.dts
@@ -21,6 +21,10 @@ &backlight {
 	status = "okay";
 };
 
+&beeper {
+	status = "okay";
+};
+
 &lcd_display {
 	status = "okay";
 };
@@ -37,6 +41,10 @@ &pwm1 {
 	status = "okay";
 };
 
+&pwm3 {
+	status = "okay";
+};
+
 &reg_usb_h1_vbus {
 	status = "okay";
 };
diff --git a/arch/arm/boot/dts/nxp/imx/imx6dl-yapp43-common.dtsi b/arch/arm/boot/dts/nxp/imx/imx6dl-yapp43-common.dtsi
index 2f42c56c21f6..6f9bd163ffbe 100644
--- a/arch/arm/boot/dts/nxp/imx/imx6dl-yapp43-common.dtsi
+++ b/arch/arm/boot/dts/nxp/imx/imx6dl-yapp43-common.dtsi
@@ -26,6 +26,12 @@ backlight: backlight {
 		status = "disabled";
 	};
 
+	beeper: beeper {
+		compatible = "pwm-beeper";
+		pwms = <&pwm3 0 500000 0>;
+		status = "disabled";
+	};
+
 	gpio_keys: gpio-keys {
 		compatible = "gpio-keys";
 		pinctrl-names = "default";
@@ -466,6 +472,13 @@ MX6QDL_PAD_GPIO_9__PWM1_OUT	0x8
 		>;
 	};
 
+	pinctrl_sound: soundgrp {
+		fsl,pins = <
+			MX6QDL_PAD_SD1_DAT0__GPIO1_IO16	0x1b0b0
+			MX6QDL_PAD_SD1_DAT1__PWM3_OUT	0x8
+		>;
+	};
+
 	pinctrl_touch: touchgrp {
 		fsl,pins = <
 			MX6QDL_PAD_GPIO_19__GPIO4_IO05	0x1b098
@@ -551,6 +564,12 @@ &pwm1 {
 	status = "disabled";
 };
 
+&pwm3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_sound>;
+	status = "disabled";
+};
+
 &uart1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_uart1>;
diff --git a/arch/arm/boot/dts/nxp/imx/imx6q-yapp4-pegasus.dts b/arch/arm/boot/dts/nxp/imx/imx6q-yapp4-pegasus.dts
index ec6651ba4ba2..7332f2718982 100644
--- a/arch/arm/boot/dts/nxp/imx/imx6q-yapp4-pegasus.dts
+++ b/arch/arm/boot/dts/nxp/imx/imx6q-yapp4-pegasus.dts
@@ -17,6 +17,10 @@ memory@...00000 {
 	};
 };
 
+&beeper {
+	status = "okay";
+};
+
 &gpio_oled {
 	status = "okay";
 };
@@ -37,6 +41,10 @@ &oled_1309 {
 	status = "okay";
 };
 
+&pwm3 {
+	status = "okay";
+};
+
 &reg_pu {
 	regulator-always-on;
 };
diff --git a/arch/arm/boot/dts/nxp/imx/imx6qp-yapp4-pegasus-plus.dts b/arch/arm/boot/dts/nxp/imx/imx6qp-yapp4-pegasus-plus.dts
index 4a961a33bf2d..770a85e0561c 100644
--- a/arch/arm/boot/dts/nxp/imx/imx6qp-yapp4-pegasus-plus.dts
+++ b/arch/arm/boot/dts/nxp/imx/imx6qp-yapp4-pegasus-plus.dts
@@ -17,6 +17,10 @@ memory@...00000 {
 	};
 };
 
+&beeper {
+	status = "okay";
+};
+
 &gpio_oled {
 	status = "okay";
 };
@@ -37,6 +41,10 @@ &oled_1309 {
 	status = "okay";
 };
 
+&pwm3 {
+	status = "okay";
+};
+
 &reg_pu {
 	regulator-always-on;
 };
-- 
2.43.0