Hi Takingrain
Here’s the patch for to enable the reference rt5639
And you need to reference to below link to add "gpio-to-sfio like below.
gpio-to-sfio = <
TEGRA_GPIO(B, 0) /* 8 H1 I2S0_LRCLK/SFSYNC */
TEGRA_GPIO(B, 1) /* 9 G1 I2S0_SDIN */
TEGRA_GPIO(B, 2) /* 10 H2 I2S0_SDOUT */
TEGRA_GPIO(B, 3) /* 11 G2 I2S0_CLK/SRCLK */
TEGRA_GPIO(BB, 0) /* 216 F1 AUDIO_MCLK */
>;
https://devtalk.nvidia.com/default/topic/1006883
c676f2c5.diff.zip (1.09 KB)