[PATCH] ARM: dts: imx6q-cm-fx6: add analog audio support
From: christopher.spinrath at rwth-aachen.de <hidden>
Date: 2017-02-07 20:31:43
Also in:
linux-devicetree
Subsystem:
the rest · Maintainer:
Linus Torvalds
From: Valentin Raevsky <redacted> The cm-fx6 module has an onboard Wolfson wm8731 codec which is muxed to the ssi2 controller. Unlike most (all?) supported i.MX6 board/codec combinations the wm8731 is operated in slave mode and the clock setup is static. Add support for it. Signed-off-by: Valentin Raevsky <redacted> [christopher.spinrath at rwth-aachen.de: enhanced commit message, ported to upstream and some cleanup] Signed-off-by: Christopher Spinrath <redacted> --- arch/arm/boot/dts/imx6q-cm-fx6.dts | 83 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 83 insertions(+)
diff --git a/arch/arm/boot/dts/imx6q-cm-fx6.dts b/arch/arm/boot/dts/imx6q-cm-fx6.dts
index d8a5789..8a85862 100644
--- a/arch/arm/boot/dts/imx6q-cm-fx6.dts
+++ b/arch/arm/boot/dts/imx6q-cm-fx6.dts@@ -43,6 +43,7 @@ /dts-v1/; #include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/sound/fsl-imx-audmux.h> #include "imx6q.dtsi" / {
@@ -90,6 +91,34 @@ enable-active-high; }; + sound-analog { + compatible = "simple-audio-card"; + simple-audio-card,name = "On-board analog audio"; + simple-audio-card,widgets = + "Headphone", "Headphone Jack", + "Line", "Line Out", + "Microphone", "Mic Jack", + "Line", "Line In"; + simple-audio-card,routing = + "Headphone Jack", "RHPOUT", + "Headphone Jack", "LHPOUT", + "MICIN", "Mic Bias", + "Mic Bias", "Mic Jack"; + simple-audio-card,format = "i2s"; + simple-audio-card,bitclock-master = <&sound_master>; + simple-audio-card,frame-master = <&sound_master>; + simple-audio-card,bitclock-inversion; + + sound_master: simple-audio-card,cpu { + sound-dai = <&ssi2>; + system-clock-frequency = <2822400>; + }; + + simple-audio-card,codec { + sound-dai = <&wm8731>; + }; + }; + sound-spdif { compatible = "fsl,imx-audio-spdif"; model = "imx-spdif";
@@ -99,6 +128,36 @@ }; }; +&audmux { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_audmux>; + status = "okay"; + + ssi2 { + fsl,audmux-port = <1>; + fsl,port-config = < + (IMX_AUDMUX_V2_PTCR_RCLKDIR | + IMX_AUDMUX_V2_PTCR_RCSEL(3 | 0x8) | + IMX_AUDMUX_V2_PTCR_TCLKDIR | + IMX_AUDMUX_V2_PTCR_TCSEL(3)) + IMX_AUDMUX_V2_PDCR_RXDSEL(3) + >; + }; + + pins5 { + fsl,audmux-port = <3>; + fsl,port-config = < + (IMX_AUDMUX_V2_PTCR_TFSDIR | + IMX_AUDMUX_V2_PTCR_TFSEL(1) | + IMX_AUDMUX_V2_PTCR_RCLKDIR | + IMX_AUDMUX_V2_PTCR_RCSEL(1 | 0x8) | + IMX_AUDMUX_V2_PTCR_TCLKDIR | + IMX_AUDMUX_V2_PTCR_TCSEL(1)) + IMX_AUDMUX_V2_PDCR_RXDSEL(1) + >; + }; +}; + &cpu0 { /* * Although the imx6q fuse indicates that 1.2GHz operation is possible,
@@ -160,9 +219,25 @@ reg = <0x50>; pagesize = <16>; }; + + wm8731: codec at 1a { + #sound-dai-cells = <0>; + compatible = "wlf,wm8731"; + reg = <0x1a>; + }; }; &iomuxc { + pinctrl_audmux: audmuxgrp { + fsl,pins = < + MX6QDL_PAD_SD2_CMD__AUD4_RXC 0x17059 + MX6QDL_PAD_SD2_DAT0__AUD4_RXD 0x17059 + MX6QDL_PAD_SD2_DAT3__AUD4_TXC 0x17059 + MX6QDL_PAD_SD2_DAT2__AUD4_TXD 0x17059 + MX6QDL_PAD_SD2_DAT1__AUD4_TXFS 0x17059 + >; + }; + pinctrl_ecspi1: ecspi1grp { fsl,pins = < MX6QDL_PAD_EIM_D16__ECSPI1_SCLK 0x100b1
@@ -279,6 +354,14 @@ status = "okay"; }; +&ssi2 { + assigned-clocks = <&clks IMX6QDL_CLK_SSI2_SEL>, + <&clks IMX6QDL_CLK_PLL4_AUDIO_DIV>; + assigned-clock-parents = <&clks IMX6QDL_CLK_PLL4_AUDIO_DIV>; + assigned-clock-rates = <0>, <786432000>; + status = "okay"; +}; + &uart4 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_uart4>;
--
2.10.2