[v2] Input: support for STM FTS5

[PATCH WIP v2 11/11] arm64: dts: qcom: sdm845-google: Add STM FTS touchscreen support

Posted by David Heidelberg via B4 Relay 3 weeks, 1 day ago

From: Petr Hodina <petr.hodina@protonmail.com>

Basic touchscreen connected to second i2c bus.

Signed-off-by: Petr Hodina <petr.hodina@protonmail.com>
Co-developed-by: David Heidelberg <david@ixit.cz>
Signed-off-by: David Heidelberg <david@ixit.cz>
---
 arch/arm64/boot/dts/qcom/sdm845-google-blueline.dts | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/sdm845-google-blueline.dts b/arch/arm64/boot/dts/qcom/sdm845-google-blueline.dts
index fa89be500fb85..48d7e7f83c285 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-google-blueline.dts
+++ b/arch/arm64/boot/dts/qcom/sdm845-google-blueline.dts
@@ -26,7 +26,25 @@ &i2c2 {
 
 	status = "okay";
 
-	/* ST,FTS @ 49 */
+	touchscreen@49 {
+		compatible = "st,stmfts5";
+		reg = <0x49>;
+
+		pinctrl-0 = <&touchscreen_pins &touchscreen_reset>;
+		pinctrl-names = "default";
+
+		interrupt-parent = <&tlmm>;
+		interrupts = <125 IRQ_TYPE_LEVEL_LOW>;
+
+		switch-gpios = <&tlmm 136 GPIO_ACTIVE_HIGH>;
+		reset-gpios = <&tlmm 99 GPIO_ACTIVE_LOW>;
+
+		avdd-supply = <&vreg_l14a_1p8>;
+		vdd-supply = <&vreg_l19a_3p3>;
+
+		touchscreen-size-x = <1080>;
+		touchscreen-size-y = <2160>;
+	};
 };
 
 &mdss_dsi0 {

-- 
2.53.0

Re: [PATCH WIP v2 11/11] arm64: dts: qcom: sdm845-google: Add STM FTS touchscreen support

Posted by Konrad Dybcio 2 weeks, 5 days ago

On 3/15/26 7:52 PM, David Heidelberg via B4 Relay wrote:
> From: Petr Hodina <petr.hodina@protonmail.com>
> 
> Basic touchscreen connected to second i2c bus.
> 
> Signed-off-by: Petr Hodina <petr.hodina@protonmail.com>
> Co-developed-by: David Heidelberg <david@ixit.cz>
> Signed-off-by: David Heidelberg <david@ixit.cz>
> ---
>  arch/arm64/boot/dts/qcom/sdm845-google-blueline.dts | 20 +++++++++++++++++++-
>  1 file changed, 19 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sdm845-google-blueline.dts b/arch/arm64/boot/dts/qcom/sdm845-google-blueline.dts
> index fa89be500fb85..48d7e7f83c285 100644
> --- a/arch/arm64/boot/dts/qcom/sdm845-google-blueline.dts
> +++ b/arch/arm64/boot/dts/qcom/sdm845-google-blueline.dts
> @@ -26,7 +26,25 @@ &i2c2 {
>  
>  	status = "okay";
>  
> -	/* ST,FTS @ 49 */
> +	touchscreen@49 {
> +		compatible = "st,stmfts5";
> +		reg = <0x49>;
> +
> +		pinctrl-0 = <&touchscreen_pins &touchscreen_reset>;

s/touchscreen_pins/touchscreen_irq_n?

also: <&foo>, <&bar> (this produces the exact same compilation output
but making them separate makes more ""semantic"" sense)

> +		pinctrl-names = "default";
> +
> +		interrupt-parent = <&tlmm>;
> +		interrupts = <125 IRQ_TYPE_LEVEL_LOW>;

interrupts-extended = <&tlmm 125 IRQ...>

Konrad