From: Johan Hovold <johan+linaro@xxxxxxxxxx>
commit 2b621971554a94094cf489314dc1c2b65401965c upstream.
Add the missing PCIe CX performance level votes to avoid relying on
other drivers (e.g. USB or UFS) to maintain the nominal performance
level required for Gen3 speeds.
Fixes: 813e83157001 ("arm64: dts: qcom: sc8280xp/sa8540p: add PCIe2-4 nodes")
Cc: stable@xxxxxxxxxxxxxxx # 6.2
Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20240306095651.4551-5-johan+linaro@xxxxxxxxxx
Signed-off-by: Bjorn Andersson <andersson@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/sc8280xp.dtsi | 5 +++++
1 file changed, 5 insertions(+)
--- a/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
@@ -1799,6 +1799,7 @@
assigned-clock-rates = <100000000>;
power-domains = <&gcc PCIE_4_GDSC>;
+ required-opps = <&rpmhpd_opp_nom>;
resets = <&gcc GCC_PCIE_4_PHY_BCR>;
reset-names = "phy";
@@ -1898,6 +1899,7 @@
assigned-clock-rates = <100000000>;
power-domains = <&gcc PCIE_3B_GDSC>;
+ required-opps = <&rpmhpd_opp_nom>;
resets = <&gcc GCC_PCIE_3B_PHY_BCR>;
reset-names = "phy";
@@ -1998,6 +2000,7 @@
assigned-clock-rates = <100000000>;
power-domains = <&gcc PCIE_3A_GDSC>;
+ required-opps = <&rpmhpd_opp_nom>;
resets = <&gcc GCC_PCIE_3A_PHY_BCR>;
reset-names = "phy";
@@ -2099,6 +2102,7 @@
assigned-clock-rates = <100000000>;
power-domains = <&gcc PCIE_2B_GDSC>;
+ required-opps = <&rpmhpd_opp_nom>;
resets = <&gcc GCC_PCIE_2B_PHY_BCR>;
reset-names = "phy";
@@ -2199,6 +2203,7 @@
assigned-clock-rates = <100000000>;
power-domains = <&gcc PCIE_2A_GDSC>;
+ required-opps = <&rpmhpd_opp_nom>;
resets = <&gcc GCC_PCIE_2A_PHY_BCR>;
reset-names = "phy";
Patches currently in stable-queue which might be from johan+linaro@xxxxxxxxxx are
queue-6.9/arm64-dts-qcom-sc8280xp-add-missing-pcie-minimum-opp.patch
queue-6.9/arm64-dts-qcom-qcs404-fix-bluetooth-device-address.patch
