topic GPIO_0 at imx6dl in i.MX Processors

GPIO_0 at imx6dl

bordonkuo — Thu, 22 Dec 2016 02:45:31 GMT

Dear all

I want to carete the 24MHz from ping GPIO_0 based on imx6dl.

I modify the pinmux setting

MX6QDL_PAD_GPIO_0__CCM_CLKO1 0x1b0b0

And I use the mclk 24 MHze for wm8960

    codec: wm8960@1a {
       compatible = "wlf,wm8960";
       reg = <0x1a>;
       clocks = <&clks IMX6QDL_CLK_CKO>;
       clock-names = "mclk";
       mclk = <24000000>;
       mclk_source = <0>;

wlf,shared-lrclk;
};

But it always cannot get the 24MHz, and show the error message "ASoC: HiFi startup failed: -16".

Re: GPIO_0 at imx6dl

weidong_sun — Thu, 22 Dec 2016 05:03:00 GMT

Hello bordon,

Open arch/arm/boot/dts/imx6qdl-sabresd.dtsi, you will find GPIO_0 has been multiplexed as MX6QDL_PAD_GPIO_0__CCM_CLKO1 0x130b0

So you don't need to modify it's IOMUX, use it directly,please! 24MHz clock should be no problem.

Best regards,

Weidong

Re: GPIO_0 at imx6dl

bordonkuo — Thu, 22 Dec 2016 06:13:47 GMT

Dear Wigros

Yes, I modify it and the value change 0x130b0. But I cannot see the 24MHz clock on GPIO_0 pin.

Do I miss something ?

Thanks