github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-04 20:46:48 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

arm64: dts: imx8mq-evk: Enable audio codec wm8524

Browse Source 
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>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Daniel Baluta 2019-03-19 17:48:41 +00:00 committed by Shawn Guo
parent 8c61538dc9
commit c6578d9876
1 changed files with 48 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

48
arch/arm64/boot/dts/freescale/imx8mq-evk.dts
View File

@ -43,6 +43,35 @@ buck2_reg: regulator-buck2 {
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 @@ ethphy0: ethernet-phy@0 {
};
};
&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 @@ MX8MQ_IOMUXC_SD2_RESET_B_GPIO2_IO19 0x41
>;
};
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