Other Parts Discussed in Thread: WL1837, , WL1835, WL1837MOD, AM3352, TPS65910, TLV320AIC3106, TMP275
Tool/software: Linux
Hello,
We are trying to bring up the WL1837 interfaced with the AM3357 based custom board. we have followed the every instruction provided in the wiki page 
.
I found that our WLAN_EN pin is not high, even after enabling it in DTS it is not going high. Is there any other thing that we need to look over. Below are the snippets of our DTS file.
wlan_en_reg: fixedregulator@2 {
compatible = "regulator-fixed";
regulator-name = "wlan-en-regulator";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
startup-delay-us = <70000>;
/* WLAN_EN GPIO for this board - Bank1, pin16 */
gpio = <&gpio1 16 GPIO_ACTIVE_HIGH>;
enable-active-high;
};
/* wl12xx/wl18xx card enable/irq GPIOs. */
wlan_pins_default: pinmux_wlan_pins_default {
pinctrl-single,pins = <
0x40 (PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* gpmc_a0.gpio1_16 */
0x19C (PIN_INPUT | MUX_MODE7) /* mcasp0_ahclkr.gpio3_17 */
0x1AC (PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* mcasp0_ahclkx.gpio3_21 */
>;
};
wlan_pins_sleep: pinmux_wlan_pins_sleep {
pinctrl-single,pins = <
0x40 (PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* gpmc_a0.gpio1_16 */
0x19C (PIN_INPUT | MUX_MODE7) /* mcasp0_ahclkr.gpio3_17 */
0x1AC (PIN_OUTPUT_PULLUP | MUX_MODE7) /* mcasp0_ahclkx.gpio3_21 */
>;
};
&mmc3{
status = "okay";
vmmc-supply = <&wlan_en_reg>;
bus-width = <4>;
pinctrl-names = "default", "sleep";
pinctrl-0 = <&mmc3_pins_default &wlan_pins_default>;
pinctrl-1 = <&mmc3_pins_sleep &wlan_pins_sleep>;
ti,non-removable;
ti,needs-special-hs-handling;
cap-power-off-card;
keep-power-in-suspend;
#address-cells = <1>;
#size-cells = <0>;
wlcore: wlcore@0 {
compatible = "ti,wl1835";
reg = <2>;
interrupt-parent = <&gpio3>;
interrupts = <17 IRQ_TYPE_EDGE_RISING>;
};
};
&edma {
ti,edma-xbar-event-map = <1 12
2 13>;
};
Now our question is how can we enable WLAN_EN by software?
Regards,
Sachin
