[SRU][O][PATCH 01/18] arm64: dts: qcom: sc8280xp-crd: disable PCIe perst pull downs

Juerg Haefliger juerg.haefliger at canonical.com
Tue Nov 26 08:49:56 UTC 2024


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

BugLink: https://bugs.launchpad.net/bugs/2089237

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

Signed-off-by: Johan Hovold <johan+linaro at kernel.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio at linaro.org>
Link: https://lore.kernel.org/r/20240719132522.9176-2-johan+linaro@kernel.org
Signed-off-by: Bjorn Andersson <andersson at kernel.org>
(cherry picked from commit 7313361396d1db9c4d5a485ec5cf904792f5bd62)
Signed-off-by: Juerg Haefliger <juerg.haefliger at canonical.com>
---
 arch/arm64/boot/dts/qcom/sc8280xp-crd.dts | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts b/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
index b98b2f7752b5..421d4ecf79fe 100644
--- a/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
+++ b/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
@@ -848,7 +848,7 @@ perst-n-pins {
 			pins = "gpio143";
 			function = "gpio";
 			drive-strength = <2>;
-			bias-pull-down;
+			bias-disable;
 		};
 
 		wake-n-pins {
@@ -871,7 +871,7 @@ perst-n-pins {
 			pins = "gpio151";
 			function = "gpio";
 			drive-strength = <2>;
-			bias-pull-down;
+			bias-disable;
 		};
 
 		wake-n-pins {
@@ -894,7 +894,7 @@ perst-n-pins {
 			pins = "gpio141";
 			function = "gpio";
 			drive-strength = <2>;
-			bias-pull-down;
+			bias-disable;
 		};
 
 		wake-n-pins {
-- 
2.43.0




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