[PATCH v6 4/4] arm64: dts: imx8mq-evk: Enable audio codec wm8952
From: Daniel Baluta <daniel.baluta@nxp.com>
Date: 2019-03-08 12:02:56
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 wm8952. The EVK provides the MCLK to wm8952. Digital interface is SAI2 which includes three signals: SYNC_CLK, BCLK and DACDAT. This patch sets: * SAI2 pinctrl configuration * clock hierarchy * wm8960 codec Then uses simple-card machine driver to connect them into a sound card. Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com> --- arch/arm64/boot/dts/freescale/imx8mq-evk.dts | 46 ++++++++++++++++++++ 1 file changed, 46 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
index 54737bf1772f..09000ee34757 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts@@ -31,6 +31,33 @@ gpio = <&gpio2 19 GPIO_ACTIVE_HIGH>; enable-active-high; }; + + 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>; + }; + }; }; &fec1 {
@@ -52,6 +79,15 @@ }; }; +&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";
@@ -223,6 +259,16 @@ >; }; + 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_i2c1: i2c1grp { fsl,pins = < MX8MQ_IOMUXC_I2C1_SCL_I2C1_SCL 0x4000007f
--
2.17.1
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