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: 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>

diff --git a/arch/arm64/boot/dts/qcom/sc8280xp.dtsi b/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
index daaf054efca3656c2e72a0eec2e4445a977118ae..f42fc469af73b2f812353060a6f94e4b9a17f5e9 100644 (file)
--- a/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
@@ -1774,6 +1774,7 @@
                        reset-names = "pci";
 
                        power-domains = <&gcc PCIE_4_GDSC>;
+                       required-opps = <&rpmhpd_opp_nom>;
 
                        phys = <&pcie4_phy>;
                        phy-names = "pciephy";
@@ -1872,6 +1873,7 @@
                        reset-names = "pci";
 
                        power-domains = <&gcc PCIE_3B_GDSC>;
+                       required-opps = <&rpmhpd_opp_nom>;
 
                        phys = <&pcie3b_phy>;
                        phy-names = "pciephy";
@@ -1970,6 +1972,7 @@
                        reset-names = "pci";
 
                        power-domains = <&gcc PCIE_3A_GDSC>;
+                       required-opps = <&rpmhpd_opp_nom>;
 
                        phys = <&pcie3a_phy>;
                        phy-names = "pciephy";
@@ -2071,6 +2074,7 @@
                        reset-names = "pci";
 
                        power-domains = <&gcc PCIE_2B_GDSC>;
+                       required-opps = <&rpmhpd_opp_nom>;
 
                        phys = <&pcie2b_phy>;
                        phy-names = "pciephy";
@@ -2169,6 +2173,7 @@
                        reset-names = "pci";
 
                        power-domains = <&gcc PCIE_2A_GDSC>;
+                       required-opps = <&rpmhpd_opp_nom>;
 
                        phys = <&pcie2a_phy>;
                        phy-names = "pciephy";