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how to config gpio on i.MX8M EVK

Question asked by chunfeng ren on Jul 19, 2018
Latest reply on Jul 19, 2018 by Carlos_Musich

we are adding a sdio wifi module in MX8M EVK, and android 8.1 is installed on evk board.

we plan to add two pins (GPIO4_IO12 ,GPIO4_IO13) , GPIO4_IO12 for WL_WAKE and GPIO4_IO13 is for WL_REGON,

 

detailed dtsi is below, could you tell how to config these two pins? that is to say, how to add gpio to &iomuxc?

 

regulators {

  

wlreg_on: fixedregulator@100 {

  

compatible = "regulator-fixed";

regulator-name = "wlreg_on";

regulator-min-microvolt = <5000000>;

regulator-max-microvolt = <5000000>;

gpio = <&gpio4 13 0>;

startup-delay-us = <100>;

enable-active-high;

};

  

};

  

bcmdhd_wlan_0: bcmdhd_wlan@0 {

compatible = "android,bcmdhd_wlan";

bcmdhd_fw = "/vendor/firmware/bcm/fw_bcmdhd.bin";

bcmdhd_nv = "/vendor/firmware/bcm/bcmdhd.cal";

gpios = <&gpio4 12 0>; /* WL_HOST_WAKE */

wlreg_on-supply = <&wlreg_on>;

};

  

thanks

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