linux-kernel - [PATCH] arm64: dts: qcom: sdm845-shift-axolotl: fix touchscreen properties

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Message-Id: <20250919-shift-axolotl-fix-touchscreen-dts-v1-1-60e26ad4e038@joelselvaraj.com>
Date: Fri, 19 Sep 2025 04:02:29 -0500
From: Joel Selvaraj via B4 Relay <devnull+foss.joelselvaraj.com@...nel.org>
To: Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Joel Selvaraj <foss@...lselvaraj.com>
Subject: [PATCH] arm64: dts: qcom: sdm845-shift-axolotl: fix touchscreen
 properties

From: Joel Selvaraj <foss@...lselvaraj.com>

The touchscreen properties previously upstreamed was based on downstream
touchscreen driver. We ended up adapting upstream edt_ft5x06 driver to
support the FocalTech FT5452 touchscreen controller used in this device.
Update the touchscreen properties to match with the upstream edt_ft5x06
driver. Also, as mentioned, the touchscreen controller used in this
device is ft5452 and not fts8719. Fix it.

Signed-off-by: Joel Selvaraj <foss@...lselvaraj.com>
---
 arch/arm64/boot/dts/qcom/sdm845-shift-axolotl.dts | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sdm845-shift-axolotl.dts b/arch/arm64/boot/dts/qcom/sdm845-shift-axolotl.dts
index 89260fce6513937224f76a94e1833a5a8d59faa4..d4062844234e33b0d501bcb7d0b6d5386c822937 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-shift-axolotl.dts
+++ b/arch/arm64/boot/dts/qcom/sdm845-shift-axolotl.dts
@@ -434,20 +434,19 @@ &i2c5 {
 	status = "okay";
 
 	touchscreen@38 {
-		compatible = "focaltech,fts8719";
+		compatible = "focaltech,ft5452";
 		reg = <0x38>;
-		wakeup-source;
-		interrupt-parent = <&tlmm>;
-		interrupts = <125 IRQ_TYPE_EDGE_FALLING>;
-		vdd-supply = <&vreg_l28a_3p0>;
-		vcc-i2c-supply = <&vreg_l14a_1p88>;
 
-		pinctrl-names = "default", "suspend";
+		interrupts-extended = <&tlmm 125 IRQ_TYPE_EDGE_FALLING>;
+		reset-gpios = <&tlmm 99 GPIO_ACTIVE_LOW>;
+
+		vcc-supply = <&vreg_l28a_3p0>;
+		iovcc-supply = <&vreg_l14a_1p88>;
+
 		pinctrl-0 = <&ts_int_active &ts_reset_active>;
 		pinctrl-1 = <&ts_int_suspend &ts_reset_suspend>;
+		pinctrl-names = "default", "suspend";
 
-		reset-gpio = <&tlmm 99 GPIO_ACTIVE_HIGH>;
-		irq-gpio = <&tlmm 125 GPIO_TRANSITORY>;
 		touchscreen-size-x = <1080>;
 		touchscreen-size-y = <2160>;
 	};

---
base-commit: 8f7f8b1b3f4c613dd886f53f768f82816b41eaa3
change-id: 20250919-shift-axolotl-fix-touchscreen-dts-afa274c233de

Best regards,
-- 
Joel Selvaraj <foss@...lselvaraj.com>