[O][PATCH 01/21] UBUNTU: SAUCE: arm64: dts: qcom: sc8280xp-x13s: disable PCIe perst pull downs

Juerg Haefliger juerg.haefliger at canonical.com
Tue Sep 3 08:39:50 UTC 2024


From: Johan Hovold <johan+linaro at kernel.org>

Disable the PCIe perst pull-down resistors to save some power.

Signed-off-by: Johan Hovold <johan+linaro at kernel.org>
(cherry picked from commit a59e55237c477c7003f06c0297a80510434b3fe6 linux-next)
Signed-off-by: Juerg Haefliger <juerg.haefliger at canonical.com>
---
 arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts b/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
index b27143f81867..a24e64e6eaf4 100644
--- a/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
+++ b/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
@@ -1509,7 +1509,7 @@ perst-n-pins {
 			pins = "gpio143";
 			function = "gpio";
 			drive-strength = <2>;
-			bias-pull-down;
+			bias-disable;
 		};
 
 		wake-n-pins {
@@ -1532,7 +1532,7 @@ perst-n-pins {
 			pins = "gpio151";
 			function = "gpio";
 			drive-strength = <2>;
-			bias-pull-down;
+			bias-disable;
 		};
 
 		wake-n-pins {
@@ -1555,7 +1555,7 @@ perst-n-pins {
 			pins = "gpio141";
 			function = "gpio";
 			drive-strength = <2>;
-			bias-pull-down;
+			bias-disable;
 		};
 
 		wake-n-pins {
-- 
2.43.0




More information about the kernel-team mailing list