linux-kernel - [PATCH v2 7/7] arm64: dts: qcom: msm8953-xiaomi-daisy: fix backlight

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Message-Id: <20260108-pmi8950-wled-v2-7-8687f23147d7@mainlining.org>
Date: Thu, 08 Jan 2026 04:43:25 +0100
From: Barnabás Czémán <barnabas.czeman@...nlining.org>
To: Lee Jones <lee@...nel.org>, Daniel Thompson <danielt@...nel.org>, 
 Jingoo Han <jingoohan1@...il.com>, Pavel Machek <pavel@...nel.org>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Bjorn Andersson <andersson@...nel.org>, 
 Kiran Gunda <quic_kgunda@...cinc.com>, Helge Deller <deller@....de>, 
 Luca Weiss <luca@...aweiss.eu>, Konrad Dybcio <konradybcio@...nel.org>, 
 Eugene Lepshy <fekz115@...il.com>, Gianluca Boiano <morf3089@...il.com>, 
 Alejandro Tafalla <atafalla@...on.com>
Cc: dri-devel@...ts.freedesktop.org, linux-leds@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Daniel Thompson <daniel.thompson@...aro.org>, linux-arm-msm@...r.kernel.org, 
 linux-fbdev@...r.kernel.org, Konrad Dybcio <konrad.dybcio@....qualcomm.com>, 
 Barnabás Czémán <barnabas.czeman@...nlining.org>
Subject: [PATCH v2 7/7] arm64: dts: qcom: msm8953-xiaomi-daisy: fix
 backlight

The backlight on this device is connected via 3 strings. Currently,
the DT claims only two are present, which results in visible stripes
on the display (since every third backlight string remains unconfigured).

Fix the number of strings to avoid that.

Fixes: 38d779c26395 ("arm64: dts: qcom: msm8953: Add device tree for Xiaomi Mi A2 Lite")
Signed-off-by: Barnabás Czémán <barnabas.czeman@...nlining.org>
---
 arch/arm64/boot/dts/qcom/msm8953-xiaomi-daisy.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/msm8953-xiaomi-daisy.dts b/arch/arm64/boot/dts/qcom/msm8953-xiaomi-daisy.dts
index ddd7af616794..59f873a06e4d 100644
--- a/arch/arm64/boot/dts/qcom/msm8953-xiaomi-daisy.dts
+++ b/arch/arm64/boot/dts/qcom/msm8953-xiaomi-daisy.dts
@@ -157,7 +157,7 @@ &pm8953_resin {
 
 &pmi8950_wled {
 	qcom,current-limit-microamp = <20000>;
-	qcom,num-strings = <2>;
+	qcom,num-strings = <3>;
 
 	status = "okay";
 };

-- 
2.52.0