linux-kernel - [PATCH v2 3/8] arm64: dts: qcom: x1e80100: add missing PCIe minimum OPP

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Message-ID: <20240722094249.26471-4-johan+linaro@kernel.org>
Date: Mon, 22 Jul 2024 11:42:44 +0200
From: Johan Hovold <johan+linaro@...nel.org>
To: Bjorn Andersson <andersson@...nel.org>,
	Konrad Dybcio <konrad.dybcio@...aro.org>
Cc: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Sibi Sankar <quic_sibis@...cinc.com>,
	Abel Vesa <abel.vesa@...aro.org>,
	Rajendra Nayak <quic_rjendra@...cinc.com>,
	linux-arm-msm@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Johan Hovold <johan+linaro@...nel.org>,
	stable@...r.kernel.org
Subject: [PATCH v2 3/8] arm64: dts: qcom: x1e80100: add missing PCIe minimum OPP

Add the missing PCIe CX performance level votes to avoid relying on
other drivers (e.g. USB) to maintain the nominal performance level
required for Gen3 speeds.

Fixes: 5eb83fc10289 ("arm64: dts: qcom: x1e80100: Add PCIe nodes")
Cc: stable@...r.kernel.org	# 6.9
Signed-off-by: Johan Hovold <johan+linaro@...nel.org>
---
 arch/arm64/boot/dts/qcom/x1e80100.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/x1e80100.dtsi b/arch/arm64/boot/dts/qcom/x1e80100.dtsi
index 07e00f1d1768..2c10532d4f60 100644
--- a/arch/arm64/boot/dts/qcom/x1e80100.dtsi
+++ b/arch/arm64/boot/dts/qcom/x1e80100.dtsi
@@ -2974,6 +2974,7 @@ &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>,
 				      "link_down";
 
 			power-domains = <&gcc GCC_PCIE_6A_GDSC>;
+			required-opps = <&rpmhpd_opp_nom>;
 
 			phys = <&pcie6a_phy>;
 			phy-names = "pciephy";
@@ -3095,6 +3096,7 @@ &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>,
 				      "link_down";
 
 			power-domains = <&gcc GCC_PCIE_4_GDSC>;
+			required-opps = <&rpmhpd_opp_nom>;
 
 			phys = <&pcie4_phy>;
 			phy-names = "pciephy";
-- 
2.44.2