From 4b15b03166cc5d28e9912287b1f9b6607c8710ec Mon Sep 17 00:00:00 2001 From: Val Packett Date: Wed, 11 Mar 2026 21:53:37 -0300 Subject: [PATCH] arm64: dts: qcom: x1-dell-thena: remove i2c20 (battery SMBus) and reserve its pins i2c20 is used by the battmgr service on the ADSP to communicate with the SBS interface of the battery. Initializing it from Linux would break the battmgr functionality when booted in EL2. Mark those pins as reserved. Fixes: e7733b42111c ("arm64: dts: qcom: Add support for Dell Inspiron 7441 / Latitude 7455") Reviewed-by: Konrad Dybcio Reviewed-by: Abel Vesa Signed-off-by: Val Packett Link: https://lore.kernel.org/r/20260312005731.12488-2-val@packett.cool Signed-off-by: Bjorn Andersson --- arch/arm64/boot/dts/qcom/x1-dell-thena.dtsi | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/arch/arm64/boot/dts/qcom/x1-dell-thena.dtsi b/arch/arm64/boot/dts/qcom/x1-dell-thena.dtsi index 0d9a324cc6cc..db291730130c 100644 --- a/arch/arm64/boot/dts/qcom/x1-dell-thena.dtsi +++ b/arch/arm64/boot/dts/qcom/x1-dell-thena.dtsi @@ -982,12 +982,6 @@ &i2c8 { status = "okay"; }; -&i2c20 { - clock-frequency = <400000>; - - status = "okay"; -}; - &lpass_tlmm { spkr_01_sd_n_active: spkr-01-sd-n-active-state { pins = "gpio12"; @@ -1308,6 +1302,7 @@ right_tweeter: speaker@0,1 { &tlmm { gpio-reserved-ranges = <44 4>, /* SPI11 (TPM) */ <76 4>, /* SPI19 (TZ Protected) */ + <80 2>, /* I2C20 (Battery SMBus) */ <238 1>; /* UFS Reset */ cam_rgb_default: cam-rgb-default-state {