2024-02-12 16:54:44

by Johan Hovold

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Subject: [PATCH 03/10] 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: [email protected] # 6.2
Signed-off-by: Johan Hovold <[email protected]>
---
arch/arm64/boot/dts/qcom/sc8280xp.dtsi | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc8280xp.dtsi b/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
index ae41b3051819..36382b1bd965 100644
--- a/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
@@ -1780,6 +1780,7 @@ pcie4: pcie@1c00000 {
reset-names = "pci";

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

phys = <&pcie4_phy>;
phy-names = "pciephy";
@@ -1878,6 +1879,7 @@ pcie3b: pcie@1c08000 {
reset-names = "pci";

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

phys = <&pcie3b_phy>;
phy-names = "pciephy";
@@ -1976,6 +1978,7 @@ pcie3a: pcie@1c10000 {
reset-names = "pci";

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

phys = <&pcie3a_phy>;
phy-names = "pciephy";
@@ -2077,6 +2080,7 @@ pcie2b: pcie@1c18000 {
reset-names = "pci";

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

phys = <&pcie2b_phy>;
phy-names = "pciephy";
@@ -2175,6 +2179,7 @@ pcie2a: pcie@1c20000 {
reset-names = "pci";

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

phys = <&pcie2a_phy>;
phy-names = "pciephy";
--
2.43.0