* Javier Martinez Canillas <javier@xxxxxxxxxxxx> [150918 10:39]:
> Hello Tony,
>
> [snip]
>
> >
> > + vmmcsdio_fixed: fixedregulator-mmcsdio {
> > + compatible = "regulator-fixed";
> > + regulator-name = "vmmcsdio_fixed";
> > + regulator-min-microvolt = <1800000>;
> > + regulator-max-microvolt = <1800000>;
> > + gpio = <&gpio5 12 GPIO_ACTIVE_HIGH>; /* gpio140 WLAN_EN */
>
> I know that other OMAP boards use a fake fixed regulator to toggle the
> WiFi enable pin but now the MMC subsystem has proper support for power
> sequence providers so that should be used instead. For simple uses
> like this, Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt
> should be enough.
Hmm OK great, I'll take a look. Looks like that might also provide a
nice solution for handling the 32k clock from palmas to the wl12xx.
In the wl12xx case it's a real regulator on wl12xx though, not a fake.
It gets the power directly from VBAT and generates it's own clocks..
Of course nobody knows what the chip is actually doing with the GPIO
pin, it's probably just a hint to some wl12xx internal state machine.
Regards,
Tony
--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
