From: Valentin Raevsky <valentin@xxxxxxxxxxxxxx>
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 <valentin@xxxxxxxxxxxxxx>
[christopher.spinrath@xxxxxxxxxxxxxx: enhanced commit message, ported
to upstream and some cleanup]
Signed-off-by: Christopher Spinrath <christopher.spinrath@xxxxxxxxxxxxxx>
---
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@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
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