[PATCH 1/4] arm64: dts: marvell: samsung-coreprimevelte: Increase touchscreen voltage

From: Duje Mihanović

Date: Thu Apr 09 2026 - 17:19:49 EST


From: Duje Mihanović <duje@xxxxxxxxxxxxxxxxx>

The old 1.9V setting was found to be insufficient in certain
environments (in my case cold ones), causing the touchscreen to register
ghost touches and mostly ignore actual touches. Increase the voltage to
2.5V to correct the issue.

Fixes: ec958b5b18c8 ("arm64: dts: samsung,coreprimevelte: add touchscreen")
Signed-off-by: Duje Mihanović <duje@xxxxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/marvell/mmp/pxa1908-samsung-coreprimevelte.dts | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/marvell/mmp/pxa1908-samsung-coreprimevelte.dts b/arch/arm64/boot/dts/marvell/mmp/pxa1908-samsung-coreprimevelte.dts
index b2ce5edd9c6a..bb0a99399624 100644
--- a/arch/arm64/boot/dts/marvell/mmp/pxa1908-samsung-coreprimevelte.dts
+++ b/arch/arm64/boot/dts/marvell/mmp/pxa1908-samsung-coreprimevelte.dts
@@ -460,7 +460,7 @@ pmic@30 {

regulators {
ldo2: ldo2 {
- regulator-min-microvolt = <1900000>;
+ regulator-min-microvolt = <2500000>;
regulator-max-microvolt = <3100000>;
};


--
2.53.0