[imx8qm-mek] how i use i2c1(dma)?

[hihanna]

Hello

I'm testing for i2c of imx8qm-mek board.

I want to test i2c1(dma), it's pin number AY52, AV52. 

I tried catch signal from wm8690's i2c pin ,

but I can't get signal anything.

&i2c1 {

  #address-cells = <1>;

 #size-cells = <0>;

 clock-frequency = <100000>;

 pinctrl-names = "default";

 pinctrl-0 = <&pinctrl_i2c1>;

 status = "okay";

 wm8960: wm8960@1a {

   compatible = "wlf,wm8960";

   reg = <0x1a>;

  };

};

pinctrl_i2c1: i2c1grp {
    fsl,pins = <
       IMX8QM_GPT0_CLK_DMA_I2C1_SCL 0x0600004c
       IMX8QM_GPT0_CAPTURE_DMA_I2C1_SDA 0x0600004c
    >;
};

I set dts file as above.

Please get help.

[joanxie]

pls refer to the dts file and check if your settings are correct or not

"https://github.com/nxp-imx/linux-imx/blob/lf-6.1.y/arch/arm64/boot/dts/freescale/imx8qm-mek.dts"

[hihanna]

Thanks for reply.

I have find the way for using lpi2c1 (connected on GPT pin).