[PATCH v2 06/16] arm64: dts: qcom: x1e80100-yoga-slim7x: Mark the EC reset gpio as reserved

From: Abel Vesa

Date: Tue Sep 01 2026 - 04:13:51 EST


GPIO 65 from TLMM is used by the embedded controller as its reset line.

On some devices, toggling the embedded controller reset line makes the
device not power up at all, unless the battery is unplugged.

So reserve it in order to prevent Linux from requesting or
reconfiguring it.

Fixes: 45247fe17db2 ("arm64: dts: qcom: x1e80100: add Lenovo Thinkpad Yoga slim 7x devicetree")
Signed-off-by: Abel Vesa <abel.vesa@xxxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/x1e80100-lenovo-yoga-slim7x.dts | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/qcom/x1e80100-lenovo-yoga-slim7x.dts b/arch/arm64/boot/dts/qcom/x1e80100-lenovo-yoga-slim7x.dts
index 9eb2dfd99f20..3e4ab58d2f6f 100644
--- a/arch/arm64/boot/dts/qcom/x1e80100-lenovo-yoga-slim7x.dts
+++ b/arch/arm64/boot/dts/qcom/x1e80100-lenovo-yoga-slim7x.dts
@@ -1350,6 +1350,7 @@ right_tweeter: speaker@0,1 {
&tlmm {
gpio-reserved-ranges = <34 2>, /* Unused */
<44 4>, /* SPI (TPM) */
+ <65 1>, /* EC reset */
<238 1>; /* UFS Reset */

edp_reg_en: edp-reg-en-state {

--
2.54.0