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.
I'm not sure which one would be suitable here. I guess we can just
replicate what the firmware configures during boot.
Thanks,
Stephan
