wl12xx_vmmc: fixedregulator@2 {
pinctrl-names = "default";
pinctrl-0 = <&wl12xx_gpio>;
compatible = "regulator-fixed";
regulator-name = "vwl1271";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
gpio = <&gpio0 27 0>;
startup-delay-us = <70000>;
enable-active-high;
};
dmesg log shows:
[ 4.259093] omap_hsmmc 47810000.mmc: unable to get vmmc regulator -517
On Thursday, 27 August 2015 16:25:17 UTC+5:30, Dileep D R wrote:
>
>
> Hi,
>
> Configuring MMC3 for SDIO communiction. I have configured pins as below,
> but still sdio communication is not up.
>
> If clock is not enabled by default how can it be done in device tree,
>
>
>
> mmc3_pins: pinmux_mmc3_pins {
> pinctrl-single,pins = <
> 0x3C (PIN_INPUT_PULLUP | MUX_MODE3) /* mmc2_dat3 */
> 0x38 (PIN_INPUT_PULLUP | MUX_MODE3) /* mmc2_dat2 */
> 0x34 (PIN_INPUT_PULLUP | MUX_MODE3) /* mmc2_dat1 */
> 0x30 (PIN_INPUT_PULLUP | MUX_MODE3) /* mmc2_dat0 */
> 0x8c (PIN_INPUT_PULLUP | MUX_MODE3) /* mmc2_clk */
> 0x88 (PIN_INPUT_PULLUP | MUX_MODE3) /* mmc2_cmd */
> >;
> };
>
> &mmc3 {
> /* these are on the crossbar and are outlined in the
> xbar-event-map element */
> dmas = <&edma 32 &edma 33>;
> dma-names = "tx", "rx";
>
> status = "okay";
> vmmc-supply = <&wl12xx_vmmc>;
> ti,non-removable;
> bus-width = <4>;
> cap-power-off-card;
> pinctrl-names = "default";
> pinctrl-0 = <&mmc3_pins>;
>
> #address-cells = <1>;
> #size-cells = <0>;
> wlcore: wlcore@2 {
> compatible = "ti,wl1271";
> reg = <2>;
> interrupt-parent = <&gpio0>;
> interrupts = <26 0x4>; /* gpio 31 */
> ref-clock-frequency = <38400000>;
> };
> };
>
> &edma {
> ti,edma-xbar-event-map = /bits/ 16 <1 32 2 33>;
> };
>
>
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