6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Johan Hovold johan+linaro@kernel.org
commit 8b8ec83a1d7d3b6605d9163d2e306971295a4ce8 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@vger.kernel.org # 6.2 Reviewed-by: Konrad Dybcio konrad.dybcio@linaro.org Reviewed-by: Manivannan Sadhasivam manivannan.sadhasivam@linaro.org Signed-off-by: Johan Hovold johan+linaro@kernel.org Link: https://lore.kernel.org/r/20240306095651.4551-5-johan+linaro@kernel.org Signed-off-by: Bjorn Andersson andersson@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- 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 @@ -1773,6 +1773,7 @@ reset-names = "pci";
power-domains = <&gcc PCIE_4_GDSC>; + required-opps = <&rpmhpd_opp_nom>;
phys = <&pcie4_phy>; phy-names = "pciephy"; @@ -1871,6 +1872,7 @@ reset-names = "pci";
power-domains = <&gcc PCIE_3B_GDSC>; + required-opps = <&rpmhpd_opp_nom>;
phys = <&pcie3b_phy>; phy-names = "pciephy"; @@ -1969,6 +1971,7 @@ reset-names = "pci";
power-domains = <&gcc PCIE_3A_GDSC>; + required-opps = <&rpmhpd_opp_nom>;
phys = <&pcie3a_phy>; phy-names = "pciephy"; @@ -2070,6 +2073,7 @@ reset-names = "pci";
power-domains = <&gcc PCIE_2B_GDSC>; + required-opps = <&rpmhpd_opp_nom>;
phys = <&pcie2b_phy>; phy-names = "pciephy"; @@ -2168,6 +2172,7 @@ reset-names = "pci";
power-domains = <&gcc PCIE_2A_GDSC>; + required-opps = <&rpmhpd_opp_nom>;
phys = <&pcie2a_phy>; phy-names = "pciephy";