[PATCH 1/4] arm64: dts: marvell: samsung-coreprimevelte: Increase touchscreen voltage
Duje Mihanović
dujemihanovic32 at gmail.com
Thu Apr 9 14:17:24 PDT 2026
From: Duje Mihanović <duje at dujemihanovic.xyz>
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 at dujemihanovic.xyz>
---
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 at 30 {
regulators {
ldo2: ldo2 {
- regulator-min-microvolt = <1900000>;
+ regulator-min-microvolt = <2500000>;
regulator-max-microvolt = <3100000>;
};
--
2.53.0
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