[PATCH v7 4/4] arm64: dts: imx8mq-evk: Enable audio codec wm8524
From: Daniel Baluta <daniel.baluta@nxp.com>
Date: 2019-03-19 17:48:54
Also in:
linux-devicetree, lkml
Subsystem:
arm/freescale imx / mxc arm architecture, the rest · Maintainers:
Frank Li, Sascha Hauer, Linus Torvalds
The main Audio DAC used on the EVK board is wm8524
The EVK provides the MCLK to wm8524.
Digital interface is SAI2 which includes three signals:
SYNC_CLK, BCLK and DACDAT.
This patch sets:
* SAI2 pinctrl configuration
* clock hierarchy
* wm8524 codec
Then uses simple-card machine driver to connect them
into a sound card.
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
---
arch/arm64/boot/dts/freescale/imx8mq-evk.dts | 48 ++++++++++++++++++++
1 file changed, 48 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
index afea110b70a3..304c28034ddf 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts@@ -43,6 +43,35 @@ states = <1000000 0x0 900000 0x1>; }; + + wm8524: audio-codec { + #sound-dai-cells = <0>; + compatible = "wlf,wm8524"; + wlf,mute-gpios = <&gpio1 8 GPIO_ACTIVE_LOW>; + }; + + sound-wm8524 { + compatible = "simple-audio-card"; + simple-audio-card,name = "wm8524-audio"; + simple-audio-card,format = "i2s"; + simple-audio-card,frame-master = <&cpudai>; + simple-audio-card,bitclock-master = <&cpudai>; + simple-audio-card,widgets = + "Line", "Left Line Out Jack", + "Line", "Right Line Out Jack"; + simple-audio-card,routing = + "Left Line Out Jack", "LINEVOUTL", + "Right Line Out Jack", "LINEVOUTR"; + + cpudai: simple-audio-card,cpu { + sound-dai = <&sai2>; + }; + + link_codec: simple-audio-card,codec { + sound-dai = <&wm8524>; + clocks = <&clk IMX8MQ_CLK_SAI2_ROOT>; + }; + }; }; &A53_0 {
@@ -80,6 +109,15 @@ }; }; +&sai2 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_sai2>; + assigned-clocks = <&clk IMX8MQ_CLK_SAI2>; + assigned-clock-parents = <&clk IMX8MQ_AUDIO_PLL1_OUT>; + assigned-clock-rates = <24576000>; + status = "okay"; +}; + &i2c1 { clock-frequency = <100000>; pinctrl-names = "default";
@@ -283,6 +321,16 @@ >; }; + pinctrl_sai2: sai2grp { + fsl,pins = < + MX8MQ_IOMUXC_SAI2_TXFS_SAI2_TX_SYNC 0xd6 + MX8MQ_IOMUXC_SAI2_TXC_SAI2_TX_BCLK 0xd6 + MX8MQ_IOMUXC_SAI2_MCLK_SAI2_MCLK 0xd6 + MX8MQ_IOMUXC_SAI2_TXD0_SAI2_TX_DATA0 0xd6 + MX8MQ_IOMUXC_GPIO1_IO08_GPIO1_IO8 0xd6 + >; + }; + pinctrl_uart1: uart1grp { fsl,pins = < MX8MQ_IOMUXC_UART1_RXD_UART1_DCE_RX 0x49
--
2.17.1
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