topic Re: [imx8qm-mek] how i use i2c1(dma)? in i.MX Processors

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

hihanna — Fri, 21 Jul 2023 05:13:50 GMT

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 — Sun, 23 Jul 2023 04:37:51 GMT

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

hihanna — Mon, 28 Aug 2023 04:52:00 GMT

Thanks for reply.

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