[PATCH v3 2/2] arm64: dts: qcom: x1-dell-thena: remove i2c20 (battery SMBus) and reserve its pins

[Val Packett <val@packett.cool>]

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 <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Val Packett <val@packett.cool>
---
v3: Pull R-b.. and restore series versioning :)
v2: https://lore.kernel.org/all/20260210175001.7691-2-val@packett.cool/
v1: doesn't exist. oops, at v1 this wasn't a series, just the PCIe GPIO patch
---
 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 fcf2845beb3c..255728970c1d 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 {
-- 
2.52.0