Commit 8b8ec83a authored Mar 06, 2024 by Johan Hovold Committed by Bjorn Andersson Apr 12, 2024

arm64: dts: qcom: sc8280xp: add missing PCIe minimum OPP



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: 813e8315 ("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>

parent cb939b9b

arch/arm64/boot/dts/qcom/sc8280xp.dtsi

+5 −0

Original line number	Diff line number	Diff line
		@@ -1774,6 +1774,7 @@ pcie4: pcie@1c00000 {
		reset-names = "pci";

		power-domains = <&gcc PCIE_4_GDSC>;
		required-opps = <&rpmhpd_opp_nom>;

		phys = <&pcie4_phy>;
		phy-names = "pciephy";
		@@ -1872,6 +1873,7 @@ pcie3b: pcie@1c08000 {
		reset-names = "pci";

		power-domains = <&gcc PCIE_3B_GDSC>;
		required-opps = <&rpmhpd_opp_nom>;

		phys = <&pcie3b_phy>;
		phy-names = "pciephy";
		@@ -1970,6 +1972,7 @@ pcie3a: pcie@1c10000 {
		reset-names = "pci";

		power-domains = <&gcc PCIE_3A_GDSC>;
		required-opps = <&rpmhpd_opp_nom>;

		phys = <&pcie3a_phy>;
		phy-names = "pciephy";
		@@ -2071,6 +2074,7 @@ pcie2b: pcie@1c18000 {
		reset-names = "pci";

		power-domains = <&gcc PCIE_2B_GDSC>;
		required-opps = <&rpmhpd_opp_nom>;

		phys = <&pcie2b_phy>;
		phy-names = "pciephy";
		@@ -2169,6 +2173,7 @@ pcie2a: pcie@1c20000 {
		reset-names = "pci";

		power-domains = <&gcc PCIE_2A_GDSC>;
		required-opps = <&rpmhpd_opp_nom>;

		phys = <&pcie2a_phy>;
		phy-names = "pciephy";