diff mbox series

arm64: dts: x1e80100-crd: describe HID supplies

Message ID 20241015122427.15995-1-johan+linaro@kernel.org (mailing list archive)
State New
Headers show
Series arm64: dts: x1e80100-crd: describe HID supplies | expand

Commit Message

Johan Hovold Oct. 15, 2024, 12:24 p.m. UTC
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@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
---
 arch/arm64/boot/dts/qcom/x1e80100-crd.dts | 34 +++++++++++++++++++++++
 1 file changed, 34 insertions(+)

Comments

Dmitry Baryshkov Oct. 15, 2024, 1:24 p.m. UTC | #1
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@linaro.org>
> Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
> ---
>  arch/arm64/boot/dts/qcom/x1e80100-crd.dts | 34 +++++++++++++++++++++++
>  1 file changed, 34 insertions(+)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Abel Vesa Oct. 15, 2024, 1:41 p.m. UTC | #2
On 24-10-15 14:24:27, 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@linaro.org>
> Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
> ---
>  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;
>  	};
>  

[...]

>  
> +&pm8550ve_8_gpios {
> +	misc_3p3_reg_en: misc-3p3-reg-en-state {
> +		pins = "gpio6";
> +		function = "normal";
> +		bias-disable;

Maybe output-enable and input-disable are needed. Can you please check?

Otherwise, LGTM:

Reviewed-by: Abel Vesa <abel.vesa@linaro.org>

> +	};
> +};
> +
>  &pmc8380_3_gpios {
>  	edp_bl_en: edp-bl-en-state {
>  		pins = "gpio4";
> -- 
> 2.45.2
>
Stephan Gerhold Oct. 15, 2024, 2:57 p.m. UTC | #3
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@linaro.org>
> Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
> ---
>  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
Stephan Gerhold Oct. 16, 2024, 4:43 p.m. UTC | #4
On Tue, Oct 15, 2024 at 04:41:13PM +0300, Abel Vesa wrote:
> On 24-10-15 14:24:27, 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@linaro.org>
> > Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
> > ---
> >  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;
> >  	};
> >  
> 
> [...]
> 
> >  
> > +&pm8550ve_8_gpios {
> > +	misc_3p3_reg_en: misc-3p3-reg-en-state {
> > +		pins = "gpio6";
> > +		function = "normal";
> > +		bias-disable;
> 
> Maybe output-enable and input-disable are needed. Can you please check?
> 

FWIW, there is a reason behind explicitly describing the intended
direction of the pin for PMIC GPIOs with properties like "output-enable"
or "input-disable": On QC platforms, PMIC GPIOs can be either in "input"
mode, "output" mode, or "input+output" mode. If you don't specify
exactly what you want, then the pinctrl-spmi-gpio driver will only add
to the existing configuration.

For the configuration above this means:

 1. If GPIO6 is disabled or in "output" mode during boot, the resulting
    mode will be "output".

 2. If GPIO6 is in "input" mode during boot, the resulting mode will be
    "input+output".

I don't know if "input+output" mode has any negative impact compared to
pure "output" mode. We usually want to have the pins in a consistent
state though (i.e. independent of the boot up state).

Thanks,
Stephan
diff mbox series

Patch

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;
+	};
+};
+
 &pmc8380_3_gpios {
 	edp_bl_en: edp-bl-en-state {
 		pins = "gpio4";