[PATCH] arm64: dts: qcom: sdm845-lg: Fix dark corner in backlight

From: Paul Sajna

Date: Sun Nov 08 2026 - 16:04:38 EST


From: Amir Dahan <system64fumo@xxxxxxx>

Restore qcom,num-strings to the default of 4.

Downstream had qcom,led-strings-list = [00 01 02] set, so for upstream
we assumed qcom,num-strings was 3. [1]

However downstream also overrides qcom,num-strings to 4 in the driver [2].

Therefore, the correct value is 4, and that value is already the
default, so we don't need to set it in sdm845-lg-common at all.

[1]: https://github.com/LineageOS/android_kernel_lge_sdm845/blob/lineage-22.2/arch/arm64/boot/dts/lge/sdm845-judy/sdm845-judyln_lao_com/sdm845-judyln_lao_com-panel.dtsi#L29
[2]: https://github.com/LineageOS/android_kernel_lge_sdm845/blob/lineage-22.2/drivers/leds/leds-qpnp-wled.c#L691

Fixes: c6c66aa3ef33 ("arm64: dts: qcom: sdm845-lg-judyln: Add display panel")

Signed-off-by: Amir Dahan <system64fumo@xxxxxxx>
Signed-off-by: Paul Sajna <sajattack@xxxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/sdm845-lg-common.dtsi | 1 -
1 file changed, 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/sdm845-lg-common.dtsi b/arch/arm64/boot/dts/qcom/sdm845-lg-common.dtsi
index 84f0e1f0bcd3..e1ecd43cba0f 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-lg-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845-lg-common.dtsi
@@ -538,7 +538,6 @@ &pmi8998_wled {
qcom,current-limit-microamp = <20000>;
qcom,ovp-millivolt = <29600>;
qcom,switching-freq = <800>;
- qcom,num-strings = <3>;
qcom,cabc;
status = "okay";
};

---
base-commit: ddfe51b0a0f5dc9e415cc2c8ad8db17532dd426b
change-id: 20261108-fix-judyln-backlight-be385341ce7a

Best regards,
--
Paul Sajna <sajattack@xxxxxxxxxxxxxxxx>