linux-kernel - [PATCH v1 2/6] arm64: dts: librem5-devkit: Add speaker amplifier

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Date:   Sun, 21 Feb 2021 12:07:07 +0100
From:   Guido Günther <agx@...xcpu.org>
To:     Rob Herring <robh+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Guido Günther <agx@...xcpu.org>,
        Martin Kepplinger <martink@...teo.de>,
        "Angus Ainslie (Purism)" <angus@...ea.ca>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Li Yang <leoyang.li@....com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Michael Walle <michael@...le.cc>,
        Max Krummenacher <max.oss.09@...il.com>,
        Nishanth Menon <nm@...com>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v1 2/6] arm64: dts: librem5-devkit: Add speaker amplifier

Wire up the amplifier that drives the builtin speaker.

Signed-off-by: Guido Günther <agx@...xcpu.org>
---
 .../dts/freescale/imx8mq-librem5-devkit.dts   | 21 +++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
index 0c0b12c90363..d01bed5eb9e0 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
@@ -165,19 +165,21 @@ wwan_codec: sound-wwan-codec {
 
 	sound {
 		compatible = "simple-audio-card";
+		simple-audio-card,aux-devs = <&speaker_amp>;
 		simple-audio-card,name = "Librem 5 Devkit";
 		simple-audio-card,format = "i2s";
 		simple-audio-card,widgets =
 			"Microphone", "Microphone Jack",
 			"Headphone", "Headphone Jack",
-			"Speaker", "Speaker Ext",
+			"Speaker", "Builtin Speaker",
 			"Line", "Line In Jack";
 		simple-audio-card,routing =
 			"MIC_IN", "Microphone Jack",
 			"Microphone Jack", "Mic Bias",
 			"LINE_IN", "Line In Jack",
 			"Headphone Jack", "HP_OUT",
-			"Speaker Ext", "LINE_OUT";
+			"Builtin Speaker", "Speaker Amp OUTR",
+			"Speaker Amp INR", "LINE_OUT";
 
 		simple-audio-card,cpu {
 			sound-dai = <&sai2>;
@@ -207,6 +209,15 @@ telephony_link_master: simple-audio-card,codec {
 		};
 	};
 
+	speaker_amp: speaker-amp {
+		compatible = "simple-audio-amplifier";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_spkamp>;
+		VCC-supply = <&reg_3v3_p>;
+		sound-name-prefix = "Speaker Amp";
+		enable-gpios = <&gpio5 3 GPIO_ACTIVE_HIGH>;
+	};
+
 	vibrator {
 		compatible = "gpio-vibrator";
 		pinctrl-names = "default";
@@ -641,6 +652,12 @@ MX8MQ_IOMUXC_SAI5_RXFS_GPIO3_IO19	0x8  /* IMU_INT */
 		>;
 	};
 
+	pinctrl_spkamp: spkamp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_SPDIF_TX_GPIO5_IO3		0x81  /* MUTE */
+		>;
+	};
+
 	pinctrl_pmic: pmicgrp {
 		fsl,pins = <
 			MX8MQ_IOMUXC_GPIO1_IO03_GPIO1_IO3	0x80  /* PMIC intr */
-- 
2.30.0