EEPW论坛

平台：TQ3399
内核：Linux4.4

驱动的添加：
1.添加驱动

2.修改 sound/soc/codec/Kconfig以及Makefile加入驱动编译
sound/soc/codec/Kconfig：
 

sound/soc/codec/Makefile

3.menuconfig中 enable simple card 以及 codec
makemenuconfig
Device Drivers --->
[*] Sound card support --->
[*] Advanced Linux Sound Architecture --->
[*] ALSA for SoC audio support --->
 [*]  ASoC support for Rockchip
[*]   Rockchip I2S Device Driver
  CODEC drivers --->
       [*] Realtek ALC5640 CODEC
   [*] ASoC Simple sound card support

4.在dts中添加节点
rk3399-excavator-sapphire.dtsi