On 24-10-15 16:57:18, Stephan Gerhold wrote:
> On Tue, Oct 15, 2024 at 02:24:27PM +0200, Johan Hovold wrote:
> > Add the missing HID supplies to avoid relying on other consumers to keep
> > them on.
> >
> > This also avoids the following warnings on boot:
> >
> > i2c_hid_of 0-0010: supply vdd not found, using dummy regulator
> > i2c_hid_of 0-0010: supply vddl not found, using dummy regulator
> > i2c_hid_of 1-0015: supply vdd not found, using dummy regulator
> > i2c_hid_of 1-0015: supply vddl not found, using dummy regulator
> > i2c_hid_of 1-003a: supply vdd not found, using dummy regulator
> > i2c_hid_of 1-003a: supply vddl not found, using dummy regulator
> >
> > Note that VREG_MISC_3P3 is also used for things like the fingerprint
> > reader which are not yet fully described so mark the regulator as always
> > on for now.
> >
> > Fixes: d7e03cce0400 ("arm64: dts: qcom: x1e80100-crd: Enable more support")
> > Cc: Abel Vesa <abel.vesa@xxxxxxxxxx>
> > Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
> > ---
> > arch/arm64/boot/dts/qcom/x1e80100-crd.dts | 34 +++++++++++++++++++++++
> > 1 file changed, 34 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/qcom/x1e80100-crd.dts b/arch/arm64/boot/dts/qcom/x1e80100-crd.dts
> > index 10b28d870f08..4ab7078f76e0 100644
> > --- a/arch/arm64/boot/dts/qcom/x1e80100-crd.dts
> > +++ b/arch/arm64/boot/dts/qcom/x1e80100-crd.dts
> > @@ -288,6 +288,23 @@ vreg_edp_3p3: regulator-edp-3p3 {
> > regulator-boot-on;
> > };
> >
> > + vreg_misc_3p3: regulator-misc-3p3 {
> > + compatible = "regulator-fixed";
> > +
> > + regulator-name = "VREG_MISC_3P3";
> > + regulator-min-microvolt = <3300000>;
> > + regulator-max-microvolt = <3300000>;
> > +
> > + gpio = <&pm8550ve_8_gpios 6 GPIO_ACTIVE_HIGH>;
> > + enable-active-high;
> > +
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&misc_3p3_reg_en>;
> > +
> > + regulator-boot-on;
> > + regulator-always-on;
> > + };
> > +
> > vreg_nvme: regulator-nvme {
> > compatible = "regulator-fixed";
> >
> > @@ -689,6 +706,9 @@ touchpad@15 {
> > hid-descr-addr = <0x1>;
> > interrupts-extended = <&tlmm 3 IRQ_TYPE_LEVEL_LOW>;
> >
> > + vdd-supply = <&vreg_misc_3p3>;
> > + vddl-supply = <&vreg_l12b_1p2>;
> > +
> > pinctrl-0 = <&tpad_default>;
> > pinctrl-names = "default";
> >
> > @@ -702,6 +722,9 @@ keyboard@3a {
> > hid-descr-addr = <0x1>;
> > interrupts-extended = <&tlmm 67 IRQ_TYPE_LEVEL_LOW>;
> >
> > + vdd-supply = <&vreg_misc_3p3>;
> > + vddl-supply = <&vreg_l12b_1p2>;
> > +
> > pinctrl-0 = <&kybd_default>;
> > pinctrl-names = "default";
> >
> > @@ -721,6 +744,9 @@ touchscreen@10 {
> > hid-descr-addr = <0x1>;
> > interrupts-extended = <&tlmm 51 IRQ_TYPE_LEVEL_LOW>;
> >
> > + vdd-supply = <&vreg_misc_3p3>;
> > + vddl-supply = <&vreg_l15b_1p8>;
> > +
> > pinctrl-0 = <&ts0_default>;
> > pinctrl-names = "default";
> > };
> > @@ -854,6 +880,14 @@ &pcie6a_phy {
> > status = "okay";
> > };
> >
> > +&pm8550ve_8_gpios {
> > + misc_3p3_reg_en: misc-3p3-reg-en-state {
> > + pins = "gpio6";
> > + function = "normal";
> > + bias-disable;
>
> Can we add a "power-source" here? PMIC GPIOs can be either ~3.7V
> (VPH_PWR) or 1.8V, depending on which power-source is selected. Without
> that, we rely on the firmware to set the voltage level for the GPIO
> during boot.
AFAIU, the power-source here should be 0, which selects VPH_PWR which is
3.3V. In that case I think we can avoid explicitly setting it.
>
> I'm not sure which one would be suitable here. I guess we can just
> replicate what the firmware configures during boot.
>
> Thanks,
> Stephan
