[PATCH v2 0/6] Device-tree improvements for Lenovo Flex/Yoga 5G laptop

[PATCH v2 0/6] Device-tree improvements for Lenovo Flex/Yoga 5G laptop

[Anton Bambura]

This improves device-tree of Lenovo Flex/Yoga 5G laptop with these changes:
- fix GPU firmware path (make it use device-specific firmware directory);
- set names for i2c hid nodes (so it is clear which node corresponds to
which device);
- add touchscreen support;
- fix touchpad issue when it gets stuck on right or middle click;
- allow UFS regulators load/mode setting;
- move some pinctrl properties to appropriate nodes.
---
Changes in v2:
- fix the description for touchpad i2c patch;
- move touchscreen reset gpio pinctrl to appropriate node;
- add a patch splitting and moving some other pinctrl stuff, so it is in
correct nodes as well;
- change touchscreen interrupt from edge falling to active low, because
edge falling is apparently against i2c hid specification, and ACPI uses
active low as well.

---
Anton Bambura (6):
  arm64: dts: qcom: sc8180x-lenovo-flex-5g: fix GPU firmware path
  arm64: dts: qcom: sc8180x-lenovo-flex-5g: set names for i2c hid nodes
  arm64: dts: qcom: sc8180x-lenovo-flex-5g: move pinctrl to appropriate
    nodes
  arm64: dts: qcom: sc8180x-lenovo-flex-5g: enable touchscreen
  arm64: dts: qcom: sc8180x-lenovo-flex-5g: set touchpad i2c frequency
    to 1 MHz
  arm64: dts: qcom: sc8180x-lenovo-flex-5g: Allow UFS regulators
    load/mode setting

 .../boot/dts/qcom/sc8180x-lenovo-flex-5g.dts  | 85 +++++++++++++++----
 1 file changed, 68 insertions(+), 17 deletions(-)

-- 
2.42.0

[PATCH v2 1/6] arm64: dts: qcom: sc8180x-lenovo-flex-5g: fix GPU firmware path

[Anton Bambura]

Fix GPU firmware path so it uses model-specific directory.

Signed-off-by: Anton Bambura <jenneron@postmarketos.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts b/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
index 0c22f3efec20..49b740c54674 100644
--- a/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
+++ b/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
@@ -350,7 +350,7 @@ &gpu {
 
 	zap-shader {
 		memory-region = <&gpu_mem>;
-		firmware-name = "qcom/sc8180x/qcdxkmsuc8180.mbn";
+		firmware-name = "qcom/sc8180x/LENOVO/82AK/qcdxkmsuc8180.mbn";
 	};
 };
 
-- 
2.42.0

Re: [PATCH v2 1/6] arm64: dts: qcom: sc8180x-lenovo-flex-5g: fix GPU firmware path

[Manivannan Sadhasivam]

On Sat, Feb 03, 2024 at 09:11:55PM +0200, Anton Bambura wrote:
> Fix GPU firmware path so it uses model-specific directory.
> 
> Signed-off-by: Anton Bambura <jenneron@postmarketos.org>
> Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> ---
>  arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts b/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
> index 0c22f3efec20..49b740c54674 100644
> --- a/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
> +++ b/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
> @@ -350,7 +350,7 @@ &gpu {
>  
>  	zap-shader {
>  		memory-region = <&gpu_mem>;
> -		firmware-name = "qcom/sc8180x/qcdxkmsuc8180.mbn";
> +		firmware-name = "qcom/sc8180x/LENOVO/82AK/qcdxkmsuc8180.mbn";

Where is the firmware located for this device? I couldn't find it in
linux-firmware [1].

- Mani

[1] https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/qcom

>  	};
>  };
>  
> -- 
> 2.42.0
> 
> 

-- 
மணிவண்ணன் சதாசிவம்

Re: [PATCH v2 1/6] arm64: dts: qcom: sc8180x-lenovo-flex-5g: fix GPU firmware path

[jenneron]

February 13, 2024 at 7:14 PM, "Manivannan Sadhasivam" <manivannan.sadhasivam@linaro.org> wrote:



> 
> On Sat, Feb 03, 2024 at 09:11:55PM +0200, Anton Bambura wrote:
> 
> > 
> > Fix GPU firmware path so it uses model-specific directory.
> > 
> >  
> > 
> >  Signed-off-by: Anton Bambura <jenneron@postmarketos.org>
> > 
> >  Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> > 
> >  ---
> > 
> >  arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts | 2 +-
> > 
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> >  
> > 
> >  diff --git a/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts b/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
> > 
> >  index 0c22f3efec20..49b740c54674 100644
> > 
> >  --- a/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
> > 
> >  +++ b/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
> > 
> >  @@ -350,7 +350,7 @@ &gpu {
> > 
> >  
> > 
> >  zap-shader {
> > 
> >  memory-region = <&gpu_mem>;
> > 
> >  - firmware-name = "qcom/sc8180x/qcdxkmsuc8180.mbn";
> > 
> >  + firmware-name = "qcom/sc8180x/LENOVO/82AK/qcdxkmsuc8180.mbn";
> > 
> 
> Where is the firmware located for this device? I couldn't find it in

NHLOS partition on the storage. I also maintain a package in postmarketOS

> 
> linux-firmware [1].
> 
> - Mani
> 
> [1] https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/qcom
> 
> > 
> > };
> > 
> >  };
> > 
> >  
> > 
> >  -- 
> > 
> >  2.42.0
> > 
> 
> -- 
> 
> மணிவண்ணன் சதாசிவம்
>

Re: [PATCH v2 1/6] arm64: dts: qcom: sc8180x-lenovo-flex-5g: fix GPU firmware path

[Manivannan Sadhasivam]

On Tue, Feb 13, 2024 at 05:33:42PM +0000, jenneron@postmarketos.org wrote:
> February 13, 2024 at 7:14 PM, "Manivannan Sadhasivam" <manivannan.sadhasivam@linaro.org> wrote:
> 
> 
> 
> > 
> > On Sat, Feb 03, 2024 at 09:11:55PM +0200, Anton Bambura wrote:
> > 
> > > 
> > > Fix GPU firmware path so it uses model-specific directory.
> > > 
> > >  
> > > 
> > >  Signed-off-by: Anton Bambura <jenneron@postmarketos.org>
> > > 
> > >  Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> > > 
> > >  ---
> > > 
> > >  arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts | 2 +-
> > > 
> > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > > 
> > >  
> > > 
> > >  diff --git a/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts b/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
> > > 
> > >  index 0c22f3efec20..49b740c54674 100644
> > > 
> > >  --- a/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
> > > 
> > >  +++ b/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
> > > 
> > >  @@ -350,7 +350,7 @@ &gpu {
> > > 
> > >  
> > > 
> > >  zap-shader {
> > > 
> > >  memory-region = <&gpu_mem>;
> > > 
> > >  - firmware-name = "qcom/sc8180x/qcdxkmsuc8180.mbn";
> > > 
> > >  + firmware-name = "qcom/sc8180x/LENOVO/82AK/qcdxkmsuc8180.mbn";
> > > 
> > 
> > Where is the firmware located for this device? I couldn't find it in
> 
> NHLOS partition on the storage. I also maintain a package in postmarketOS
> 

Could you point me to the package?

- Mani

-- 
மணிவண்ணன் சதாசிவம்

Re: [PATCH v2 1/6] arm64: dts: qcom: sc8180x-lenovo-flex-5g: fix GPU firmware path

[jenneron]

February 13, 2024 at 7:51 PM, "Manivannan Sadhasivam" <manivannan.sadhasivam@linaro.org> wrote:



> 
> On Tue, Feb 13, 2024 at 05:33:42PM +0000, jenneron@postmarketos.org wrote:
> 
> > 
> > February 13, 2024 at 7:14 PM, "Manivannan Sadhasivam" <manivannan.sadhasivam@linaro.org> wrote:
> > 
> >  
> > 
> >  
> > 
> >  
> > 
> >  
> > 
> >  On Sat, Feb 03, 2024 at 09:11:55PM +0200, Anton Bambura wrote:
> > 
> >  
> > 
> >  > 
> > 
> >  > Fix GPU firmware path so it uses model-specific directory.
> > 
> >  > 
> > 
> >  > 
> > 
> >  > 
> > 
> >  > Signed-off-by: Anton Bambura <jenneron@postmarketos.org>
> > 
> >  > 
> > 
> >  > Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> > 
> >  > 
> > 
> >  > ---
> > 
> >  > 
> > 
> >  > arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts | 2 +-
> > 
> >  > 
> > 
> >  > 1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> >  > 
> > 
> >  > 
> > 
> >  > 
> > 
> >  > diff --git a/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts b/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
> > 
> >  > 
> > 
> >  > index 0c22f3efec20..49b740c54674 100644
> > 
> >  > 
> > 
> >  > --- a/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
> > 
> >  > 
> > 
> >  > +++ b/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
> > 
> >  > 
> > 
> >  > @@ -350,7 +350,7 @@ &gpu {
> > 
> >  > 
> > 
> >  > 
> > 
> >  > 
> > 
> >  > zap-shader {
> > 
> >  > 
> > 
> >  > memory-region = <&gpu_mem>;
> > 
> >  > 
> > 
> >  > - firmware-name = "qcom/sc8180x/qcdxkmsuc8180.mbn";
> > 
> >  > 
> > 
> >  > + firmware-name = "qcom/sc8180x/LENOVO/82AK/qcdxkmsuc8180.mbn";
> > 
> >  > 
> > 
> >  
> > 
> >  Where is the firmware located for this device? I couldn't find it in
> > 
> >  
> > 
> >  NHLOS partition on the storage. I also maintain a package in postmarketOS
> > 
> 
> Could you point me to the package?

https://gitlab.com/jenneron/firmware-lenovo-yoga-5g
https://gitlab.com/postmarketOS/pmaports/-/blob/master/device/testing/firmware-lenovo-yoga-5g/APKBUILD

> 
> - Mani
> 
> -- 
> 
> மணிவண்ணன் சதாசிவம்
>

[PATCH v2 2/6] arm64: dts: qcom: sc8180x-lenovo-flex-5g: set names for i2c hid nodes

[Anton Bambura]

Set names, so they correspond to devices connected to these interfaces.

Signed-off-by: Anton Bambura <jenneron@postmarketos.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts b/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
index 49b740c54674..af61acf58d68 100644
--- a/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
+++ b/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
@@ -362,7 +362,7 @@ &i2c1 {
 
 	status = "okay";
 
-	hid@10 {
+	touchscreen@10 {
 		compatible = "hid-over-i2c";
 		reg = <0x10>;
 		hid-descr-addr = <0x1>;
@@ -379,7 +379,7 @@ &i2c7 {
 
 	status = "okay";
 
-	hid@5 {
+	keyboard@5 {
 		compatible = "hid-over-i2c";
 		reg = <0x5>;
 		hid-descr-addr = <0x20>;
@@ -387,7 +387,7 @@ hid@5 {
 		interrupts-extended = <&tlmm 37 IRQ_TYPE_LEVEL_LOW>;
 	};
 
-	hid@2c {
+	touchpad@2c {
 		compatible = "hid-over-i2c";
 		reg = <0x2c>;
 		hid-descr-addr = <0x20>;
-- 
2.42.0

[PATCH v2 3/6] arm64: dts: qcom: sc8180x-lenovo-flex-5g: move pinctrl to appropriate nodes

[Anton Bambura]

Split keyboard and touchpad pinctrl nodes since they are for different
devices and move keyboard, touchpad and touchscreen pinctrl references to
appropriate nodes.

Signed-off-by: Anton Bambura <jenneron@postmarketos.org>
---
 .../boot/dts/qcom/sc8180x-lenovo-flex-5g.dts  | 41 +++++++++++++------
 1 file changed, 29 insertions(+), 12 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts b/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
index af61acf58d68..6ae6cb030b70 100644
--- a/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
+++ b/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
@@ -357,7 +357,7 @@ zap-shader {
 &i2c1 {
 	clock-frequency = <100000>;
 
-	pinctrl-0 = <&i2c1_active>, <&i2c1_hid_active>;
+	pinctrl-0 = <&i2c1_active>;
 	pinctrl-names = "default";
 
 	status = "okay";
@@ -368,13 +368,16 @@ touchscreen@10 {
 		hid-descr-addr = <0x1>;
 
 		interrupts-extended = <&tlmm 122 IRQ_TYPE_LEVEL_LOW>;
+
+		pinctrl-0 = <&ts_int_default>;
+		pinctrl-names = "default";
 	};
 };
 
 &i2c7 {
 	clock-frequency = <100000>;
 
-	pinctrl-0 = <&i2c7_active>, <&i2c7_hid_active>;
+	pinctrl-0 = <&i2c7_active>;
 	pinctrl-names = "default";
 
 	status = "okay";
@@ -385,6 +388,9 @@ keyboard@5 {
 		hid-descr-addr = <0x20>;
 
 		interrupts-extended = <&tlmm 37 IRQ_TYPE_LEVEL_LOW>;
+
+		pinctrl-0 = <&kb_int_default>;
+		pinctrl-names = "default";
 	};
 
 	touchpad@2c {
@@ -393,6 +399,9 @@ touchpad@2c {
 		hid-descr-addr = <0x20>;
 
 		interrupts-extended = <&tlmm 24 IRQ_TYPE_LEVEL_LOW>;
+
+		pinctrl-0 = <&tp_int_default>;
+		pinctrl-names = "default";
 	};
 };
 
@@ -669,14 +678,6 @@ i2c1_active: i2c1-active-state {
 		drive-strength = <2>;
 	};
 
-	i2c1_hid_active: i2c1-hid-active-state {
-		pins = "gpio122";
-		function = "gpio";
-
-		bias-pull-up;
-		drive-strength = <2>;
-	};
-
 	i2c7_active: i2c7-active-state {
 		pins = "gpio98", "gpio99";
 		function = "qup7";
@@ -685,8 +686,8 @@ i2c7_active: i2c7-active-state {
 		drive-strength = <2>;
 	};
 
-	i2c7_hid_active: i2c7-hid-active-state {
-		pins = "gpio37", "gpio24";
+	kb_int_default: kb-int-default-state {
+		pins = "gpio37";
 		function = "gpio";
 
 		bias-pull-up;
@@ -718,6 +719,22 @@ wake-n-pins {
 		};
 	};
 
+	tp_int_default: tp-int-default-state {
+		pins = "gpio24";
+		function = "gpio";
+
+		bias-pull-up;
+		drive-strength = <2>;
+	};
+
+	ts_int_default: ts-int-default-state {
+		pins = "gpio122";
+		function = "gpio";
+
+		bias-pull-up;
+		drive-strength = <2>;
+	};
+
 	usbprim_sbu_default: usbprim-sbu-state {
 		oe-n-pins {
 			pins = "gpio152";
-- 
2.42.0

Re: [PATCH v2 3/6] arm64: dts: qcom: sc8180x-lenovo-flex-5g: move pinctrl to appropriate nodes

[Konrad Dybcio]

On 3.02.2024 20:11, Anton Bambura wrote:
> Split keyboard and touchpad pinctrl nodes since they are for different
> devices and move keyboard, touchpad and touchscreen pinctrl references to
> appropriate nodes.
> 
> Signed-off-by: Anton Bambura <jenneron@postmarketos.org>
> ---

Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>

Konrad

[PATCH v2 4/6] arm64: dts: qcom: sc8180x-lenovo-flex-5g: enable touchscreen

[Anton Bambura]

Set regulators, reset gpio and delays according to ACPI tables.

Signed-off-by: Anton Bambura <jenneron@postmarketos.org>
---
 .../boot/dts/qcom/sc8180x-lenovo-flex-5g.dts  | 30 ++++++++++++++++++-
 1 file changed, 29 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts b/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
index 6ae6cb030b70..5bf6285f905f 100644
--- a/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
+++ b/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
@@ -271,6 +271,12 @@ vreg_l3c_1p2: ldo3 {
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
 		};
 
+		vreg_l4c_3p3: ldo4 {
+			regulator-min-microvolt = <3296000>;
+			regulator-max-microvolt = <3304000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
 		vreg_l10c_3p3: ldo10 {
 			regulator-min-microvolt = <3000000>;
 			regulator-max-microvolt = <3312000>;
@@ -337,6 +343,12 @@ vreg_l10e_2p9: ldo10 {
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
 		};
 
+		vreg_l12e_1p8: ldo12 {
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <1800000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
 		vreg_l16e_3p0: ldo16 {
 			regulator-min-microvolt = <3072000>;
 			regulator-max-microvolt = <3072000>;
@@ -365,11 +377,19 @@ &i2c1 {
 	touchscreen@10 {
 		compatible = "hid-over-i2c";
 		reg = <0x10>;
+
 		hid-descr-addr = <0x1>;
+		reset-gpios = <&tlmm 54 GPIO_ACTIVE_LOW>;
+
+		vdd-supply = <&vreg_l4c_3p3>;
+		vddl-supply = <&vreg_l12e_1p8>;
+
+		post-power-on-delay-ms = <3>;
+		post-reset-deassert-delay-ms = <200>;
 
 		interrupts-extended = <&tlmm 122 IRQ_TYPE_LEVEL_LOW>;
 
-		pinctrl-0 = <&ts_int_default>;
+		pinctrl-0 = <&ts_int_default>, <&ts_reset_default>;
 		pinctrl-names = "default";
 	};
 };
@@ -735,6 +755,14 @@ ts_int_default: ts-int-default-state {
 		drive-strength = <2>;
 	};
 
+	ts_reset_default: ts-reset-default-state {
+		pins = "gpio54";
+		function = "gpio";
+
+		bias-disable;
+		drive-strength = <16>;
+	};
+
 	usbprim_sbu_default: usbprim-sbu-state {
 		oe-n-pins {
 			pins = "gpio152";
-- 
2.42.0

Re: [PATCH v2 4/6] arm64: dts: qcom: sc8180x-lenovo-flex-5g: enable touchscreen

[Konrad Dybcio]

On 3.02.2024 20:11, Anton Bambura wrote:
> Set regulators, reset gpio and delays according to ACPI tables.
> 
> Signed-off-by: Anton Bambura <jenneron@postmarketos.org>
> ---

Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>

Konrad

Re: [PATCH v2 4/6] arm64: dts: qcom: sc8180x-lenovo-flex-5g: enable touchscreen

[Bjorn Andersson]

On Sat, Feb 03, 2024 at 09:11:58PM +0200, Anton Bambura wrote:
> Set regulators, reset gpio and delays according to ACPI tables.
> 
> Signed-off-by: Anton Bambura <jenneron@postmarketos.org>
> ---
>  .../boot/dts/qcom/sc8180x-lenovo-flex-5g.dts  | 30 ++++++++++++++++++-
>  1 file changed, 29 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts b/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
> index 6ae6cb030b70..5bf6285f905f 100644
> --- a/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
> +++ b/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
> @@ -271,6 +271,12 @@ vreg_l3c_1p2: ldo3 {
>  			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
>  		};
>  
> +		vreg_l4c_3p3: ldo4 {
> +			regulator-min-microvolt = <3296000>;
> +			regulator-max-microvolt = <3304000>;
> +			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +		};
> +
>  		vreg_l10c_3p3: ldo10 {
>  			regulator-min-microvolt = <3000000>;
>  			regulator-max-microvolt = <3312000>;
> @@ -337,6 +343,12 @@ vreg_l10e_2p9: ldo10 {
>  			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
>  		};
>  
> +		vreg_l12e_1p8: ldo12 {
> +			regulator-min-microvolt = <1800000>;
> +			regulator-max-microvolt = <1800000>;
> +			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> +		};
> +
>  		vreg_l16e_3p0: ldo16 {
>  			regulator-min-microvolt = <3072000>;
>  			regulator-max-microvolt = <3072000>;
> @@ -365,11 +377,19 @@ &i2c1 {
>  	touchscreen@10 {
>  		compatible = "hid-over-i2c";
>  		reg = <0x10>;
> +
>  		hid-descr-addr = <0x1>;
> +		reset-gpios = <&tlmm 54 GPIO_ACTIVE_LOW>;
> +
> +		vdd-supply = <&vreg_l4c_3p3>;
> +		vddl-supply = <&vreg_l12e_1p8>;
> +
> +		post-power-on-delay-ms = <3>;
> +		post-reset-deassert-delay-ms = <200>;

As I ran into with the X13s, post-reset-deassert-delay-ms is not an
accepted property for hid-over-i2c. I think the desired path forward is
to extend elan,ekth6915.yaml and i2c-hid-of-elan.c and hard code these
values there instead.

But I suspect you, like me, are unaware of the actual name of the
device? Perhaps it's acceptable to make something up based on the
reported product id?

Regards,
Bjorn

>  
>  		interrupts-extended = <&tlmm 122 IRQ_TYPE_LEVEL_LOW>;
>  
> -		pinctrl-0 = <&ts_int_default>;
> +		pinctrl-0 = <&ts_int_default>, <&ts_reset_default>;
>  		pinctrl-names = "default";
>  	};
>  };
> @@ -735,6 +755,14 @@ ts_int_default: ts-int-default-state {
>  		drive-strength = <2>;
>  	};
>  
> +	ts_reset_default: ts-reset-default-state {
> +		pins = "gpio54";
> +		function = "gpio";
> +
> +		bias-disable;
> +		drive-strength = <16>;
> +	};
> +
>  	usbprim_sbu_default: usbprim-sbu-state {
>  		oe-n-pins {
>  			pins = "gpio152";
> -- 
> 2.42.0
> 

Re: [PATCH v2 4/6] arm64: dts: qcom: sc8180x-lenovo-flex-5g: enable touchscreen

[Anton Bambura]

March 18, 2024 at 4:43 AM, "Bjorn Andersson" <andersson@kernel.org> wrote:



> 
> On Sat, Feb 03, 2024 at 09:11:58PM +0200, Anton Bambura wrote:
> 
> > 
> > Set regulators, reset gpio and delays according to ACPI tables.
> > 
> >  
> > 
> >  Signed-off-by: Anton Bambura <jenneron@postmarketos.org>
> > 
> >  ---
> > 
> >  .../boot/dts/qcom/sc8180x-lenovo-flex-5g.dts | 30 ++++++++++++++++++-
> > 
> >  1 file changed, 29 insertions(+), 1 deletion(-)
> > 
> >  
> > 
> >  diff --git a/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts b/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
> > 
> >  index 6ae6cb030b70..5bf6285f905f 100644
> > 
> >  --- a/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
> > 
> >  +++ b/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
> > 
> >  @@ -271,6 +271,12 @@ vreg_l3c_1p2: ldo3 {
> > 
> >  regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> > 
> >  };
> > 
> >  
> > 
> >  + vreg_l4c_3p3: ldo4 {
> > 
> >  + regulator-min-microvolt = <3296000>;
> > 
> >  + regulator-max-microvolt = <3304000>;
> > 
> >  + regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> > 
> >  + };
> > 
> >  +
> > 
> >  vreg_l10c_3p3: ldo10 {
> > 
> >  regulator-min-microvolt = <3000000>;
> > 
> >  regulator-max-microvolt = <3312000>;
> > 
> >  @@ -337,6 +343,12 @@ vreg_l10e_2p9: ldo10 {
> > 
> >  regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> > 
> >  };
> > 
> >  
> > 
> >  + vreg_l12e_1p8: ldo12 {
> > 
> >  + regulator-min-microvolt = <1800000>;
> > 
> >  + regulator-max-microvolt = <1800000>;
> > 
> >  + regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> > 
> >  + };
> > 
> >  +
> > 
> >  vreg_l16e_3p0: ldo16 {
> > 
> >  regulator-min-microvolt = <3072000>;
> > 
> >  regulator-max-microvolt = <3072000>;
> > 
> >  @@ -365,11 +377,19 @@ &i2c1 {
> > 
> >  touchscreen@10 {
> > 
> >  compatible = "hid-over-i2c";
> > 
> >  reg = <0x10>;
> > 
> >  +
> > 
> >  hid-descr-addr = <0x1>;
> > 
> >  + reset-gpios = <&tlmm 54 GPIO_ACTIVE_LOW>;
> > 
> >  +
> > 
> >  + vdd-supply = <&vreg_l4c_3p3>;
> > 
> >  + vddl-supply = <&vreg_l12e_1p8>;
> > 
> >  +
> > 
> >  + post-power-on-delay-ms = <3>;
> > 
> >  + post-reset-deassert-delay-ms = <200>;
> > 
> 
> As I ran into with the X13s, post-reset-deassert-delay-ms is not an
> 
> accepted property for hid-over-i2c. I think the desired path forward is
> 
> to extend elan,ekth6915.yaml and i2c-hid-of-elan.c and hard code these
> 
> values there instead.
> 
> But I suspect you, like me, are unaware of the actual name of the
> 
> device? Perhaps it's acceptable to make something up based on the
> 
> reported product id?

Indeed, I don't know the actual IC. evtest reports this:

Input device ID: bus 0x18 vendor 0x4f3 product 0x2a7d version 0x100
Input device name: "hid-over-i2c 04F3:2A7D"

> 
> Regards,
> 
> Bjorn
> 
> > 
> > interrupts-extended = <&tlmm 122 IRQ_TYPE_LEVEL_LOW>;
> > 
> >  
> > 
> >  - pinctrl-0 = <&ts_int_default>;
> > 
> >  + pinctrl-0 = <&ts_int_default>, <&ts_reset_default>;
> > 
> >  pinctrl-names = "default";
> > 
> >  };
> > 
> >  };
> > 
> >  @@ -735,6 +755,14 @@ ts_int_default: ts-int-default-state {
> > 
> >  drive-strength = <2>;
> > 
> >  };
> > 
> >  
> > 
> >  + ts_reset_default: ts-reset-default-state {
> > 
> >  + pins = "gpio54";
> > 
> >  + function = "gpio";
> > 
> >  +
> > 
> >  + bias-disable;
> > 
> >  + drive-strength = <16>;
> > 
> >  + };
> > 
> >  +
> > 
> >  usbprim_sbu_default: usbprim-sbu-state {
> > 
> >  oe-n-pins {
> > 
> >  pins = "gpio152";
> > 
> >  -- 
> > 
> >  2.42.0
> >
>

[PATCH v2 5/6] arm64: dts: qcom: sc8180x-lenovo-flex-5g: set touchpad i2c frequency to 1 MHz

[Anton Bambura]

This solves the issue when touchpad gets stuck on right or middle
click. This also makes touchpad working smoother.

Signed-off-by: Anton Bambura <jenneron@postmarketos.org>
---
 arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts b/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
index 5bf6285f905f..0bfc655e9a31 100644
--- a/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
+++ b/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
@@ -395,7 +395,7 @@ touchscreen@10 {
 };
 
 &i2c7 {
-	clock-frequency = <100000>;
+	clock-frequency = <1000000>;
 
 	pinctrl-0 = <&i2c7_active>;
 	pinctrl-names = "default";
-- 
2.42.0

Re: [PATCH v2 5/6] arm64: dts: qcom: sc8180x-lenovo-flex-5g: set touchpad i2c frequency to 1 MHz

[Konrad Dybcio]

On 3.02.2024 20:11, Anton Bambura wrote:
> This solves the issue when touchpad gets stuck on right or middle
> click. This also makes touchpad working smoother.
> 
> Signed-off-by: Anton Bambura <jenneron@postmarketos.org>
> ---

Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>

Konrad

[PATCH v2 6/6] arm64: dts: qcom: sc8180x-lenovo-flex-5g: Allow UFS regulators load/mode setting

[Anton Bambura]

The UFS driver expects to be able to set load (and by extension, mode)
on the supplied regulators. Add the necessary properties to make that
possible.

Based on https://lore.kernel.org/r/20231214-topic-sc8180_fixes-v1-6-421904863006@linaro.org

Signed-off-by: Anton Bambura <jenneron@postmarketos.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts b/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
index 0bfc655e9a31..a41958f9ef2b 100644
--- a/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
+++ b/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
@@ -335,12 +335,18 @@ vreg_l7e_1p8: ldo7 {
 			regulator-min-microvolt = <1800000>;
 			regulator-max-microvolt = <1800000>;
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+			regulator-allowed-modes = <RPMH_REGULATOR_MODE_LPM
+						   RPMH_REGULATOR_MODE_HPM>;
+			regulator-allow-set-load;
 		};
 
 		vreg_l10e_2p9: ldo10 {
 			regulator-min-microvolt = <2904000>;
 			regulator-max-microvolt = <2904000>;
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+			regulator-allowed-modes = <RPMH_REGULATOR_MODE_LPM
+						   RPMH_REGULATOR_MODE_HPM>;
+			regulator-allow-set-load;
 		};
 
 		vreg_l12e_1p8: ldo12 {
-- 
2.42.0

Re: (subset) [PATCH v2 0/6] Device-tree improvements for Lenovo Flex/Yoga 5G laptop

[Bjorn Andersson]

On Sat, 03 Feb 2024 21:11:54 +0200, Anton Bambura wrote:
> This improves device-tree of Lenovo Flex/Yoga 5G laptop with these changes:
> - fix GPU firmware path (make it use device-specific firmware directory);
> - set names for i2c hid nodes (so it is clear which node corresponds to
> which device);
> - add touchscreen support;
> - fix touchpad issue when it gets stuck on right or middle click;
> - allow UFS regulators load/mode setting;
> - move some pinctrl properties to appropriate nodes.
> 
> [...]

Applied, thanks!

[1/6] arm64: dts: qcom: sc8180x-lenovo-flex-5g: fix GPU firmware path
      commit: 4aa609a922e3ce387d18d8e7327d3912f0a85653
[2/6] arm64: dts: qcom: sc8180x-lenovo-flex-5g: set names for i2c hid nodes
      commit: 8c28575a4aba092feb5a5ca0b446eb8a0fa39396
[3/6] arm64: dts: qcom: sc8180x-lenovo-flex-5g: move pinctrl to appropriate nodes
      commit: 0d76ffe33e5eb5b0a7bd09e4fa8a72f7f4cfbc0d
[5/6] arm64: dts: qcom: sc8180x-lenovo-flex-5g: set touchpad i2c frequency to 1 MHz
      commit: 46c2f36e76a018c269d236ec1a1cca03fe5bb47b
[6/6] arm64: dts: qcom: sc8180x-lenovo-flex-5g: Allow UFS regulators load/mode setting
      commit: 42ee55cb2e27d8bf3d26b8c4199727df029a5878

Best regards,
-- 
Bjorn Andersson <andersson@kernel.org>