On wto, 2014-10-28 at 09:52 +0100, Krzysztof Kozlowski wrote:
> On pon, 2014-10-27 at 21:03 +0100, Javier Martinez Canillas wrote:
> > Hello Krzysztof,
> >
> > On 10/27/2014 04:03 PM, Krzysztof Kozlowski wrote:
> > > @@ -85,6 +91,9 @@ struct max77686_data {
> > > struct max77686_regulator_data *regulators;
> > > int num_regulators;
> > >
> > > + /* Array of size num_regulators with GPIOs for external control. */
> > > + int *ext_control_gpio;
> > > +
> >
> > The integer-based GPIO API is deprecated in favor of the descriptor-based
> > GPIO
> > interface (Documentation/gpio/consumer.txt). Could you please use the later?
>
> Sure, I can. Please have in mind that regulator core still accepts old
> GPIO so I will have to use desc_to_gpio(). That should work... and
> should be future-ready.
It seems I was too hasty... I think usage of the new gpiod API implies
completely different bindings.
The gpiod_get() gets GPIO from a device level, not from given sub-node
pointer. This means that you cannot have DTS like this:
ldo21_reg: ldo21 {
regulator-compatible = "LDO21";
regulator-name = "VTF_2.8V";
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
ec-gpio = <&gpy2 0 0>;
};
ldo22_reg: ldo22 {
regulator-compatible = "LDO22";
regulator-name = "VMEM_VDD_2.8V";
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
ec-gpio = <&gpk0 2 0>;
};
I could put GPIOs in device node:
max77686_pmic@09 {
compatible = "maxim,max77686";
interrupt-parent = <&gpx0>;
interrupts = <7 0>;
reg = <0x09>;
#clock-cells = <1>;
ldo21-gpio = <&gpy2 0 0>;
ldo22-gpio = <&gpk0 2 0>;
ldo21_reg: ldo21 {
regulator-compatible = "LDO21";
regulator-name = "VTF_2.8V";
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
};
ldo22_reg: ldo22 {
regulator-compatible = "LDO22";
regulator-name = "VMEM_VDD_2.8V";
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
};
This would work but I don't like it. The properties of a regulator are
above the node configuring that regulator.
Any ideas?
Best regards,
Krzysztof
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