diff mbox series

[v2,11/12] arm64: dts: qcom: sc8280xp-x13s: disable ASPM L0s for NVMe and modem

Message ID 20240223152124.20042-12-johan+linaro@kernel.org
State New
Headers show
Series arm64: dts: qcom: sc8280xp: PCIe fixes and GICv3 ITS enable | expand

Commit Message

Johan Hovold Feb. 23, 2024, 3:21 p.m. UTC 
There are indications that ASPM L0s is not working very well on this
machine so disable it also for the NVMe and modem controllers for now.

Note that this is done as a precaution based on problems with the Wi-Fi
on the X13s as well as the NVMe, modem and Wi-Fi on the sc8280xp-crd
reference design (the NVMe controller on my X13s does not support L0 and
the machine lacks a modem).

Fixes: 9f4f3dfad8cf ("PCI: qcom: Enable ASPM for platforms supporting 1.9.0 ops")
Cc: stable@vger.kernel.org      # 6.7
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
---
 arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox series

Patch

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 70824294108e..06fc88d5d025 100644
--- a/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
+++ b/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
@@ -730,6 +730,8 @@  keyboard@68 {
 };
 
 &pcie2a {
+	aspm-no-l0s;
+
 	perst-gpios = <&tlmm 143 GPIO_ACTIVE_LOW>;
 	wake-gpios = <&tlmm 145 GPIO_ACTIVE_LOW>;
 
@@ -749,6 +751,8 @@  &pcie2a_phy {
 };
 
 &pcie3a {
+	aspm-no-l0s;
+
 	perst-gpios = <&tlmm 151 GPIO_ACTIVE_LOW>;
 	wake-gpios = <&tlmm 148 GPIO_ACTIVE_LOW>;