arm64: dts: qcom: sc8280xp-crd: limit pcie4 link speed

Limit the WiFi PCIe link speed to Gen2 speed (500 MB/s), which is the
speed that Windows uses.

Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20240223152124.20042-7-johan+linaro@kernel.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts b/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
index ffc4406422ae2f82c9636e0fb521f34a1d28c1eb..41215567b3aed7d4211a8a4c5ab94042d205b422 100644 (file)
--- a/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
+++ b/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
@@ -563,6 +563,8 @@
 };
 
 &pcie4 {
+       max-link-speed = <2>;
+
        perst-gpios = <&tlmm 141 GPIO_ACTIVE_LOW>;
        wake-gpios = <&tlmm 139 GPIO_ACTIVE_LOW>;