Duje Mihanović
93cc790a9d
Add a patch increasing the touchscreen voltage to fix some newly-discovered touchscreen issues. Signed-off-by: Duje Mihanović <duje@dujemihanovic.xyz> Part-of: <https://gitlab.postmarketos.org/postmarketOS/pmaports/-/merge_requests/7577>
36 lines
1.3 KiB
Diff
36 lines
1.3 KiB
Diff
From 17d3495e47c0dcb33c47ad54379421b62d34fb84 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Duje=20Mihanovi=C4=87?= <duje@dujemihanovic.xyz>
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Date: Sun, 14 Dec 2025 13:13:11 +0100
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Subject: [PATCH 09/13] arm64: dts: marvell: samsung-coreprimevelte: Increase
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touchscreen voltage
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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The old 1.9V setting was found to be insufficient in certain
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environments (in my case cold ones), causing the touchscreen to register
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ghost touches and mostly ignore actual touches. Increase the voltage to
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2.5V to correct the issue.
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Signed-off-by: Duje Mihanović <duje@dujemihanovic.xyz>
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---
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.../boot/dts/marvell/mmp/pxa1908-samsung-coreprimevelte.dts | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/arch/arm64/boot/dts/marvell/mmp/pxa1908-samsung-coreprimevelte.dts b/arch/arm64/boot/dts/marvell/mmp/pxa1908-samsung-coreprimevelte.dts
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index faeea5001364..fd16760f1072 100644
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--- a/arch/arm64/boot/dts/marvell/mmp/pxa1908-samsung-coreprimevelte.dts
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+++ b/arch/arm64/boot/dts/marvell/mmp/pxa1908-samsung-coreprimevelte.dts
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@@ -461,7 +461,7 @@ pmic@30 {
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regulators {
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ldo2: ldo2 {
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- regulator-min-microvolt = <1900000>;
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+ regulator-min-microvolt = <2500000>;
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regulator-max-microvolt = <3100000>;
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};
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--
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2.52.0
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