linux-kernel - [PATCH] arm64: dts: qcom: sm8450 fix PIPE clock specification for pcie1

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Message-Id: <20241006-fix-sm8450-pcie1-v1-1-4f227c9082ed@linaro.org>
Date: Sun, 06 Oct 2024 19:47:56 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Neil Armstrong <neil.armstrong@...aro.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, 
 Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Subject: [PATCH] arm64: dts: qcom: sm8450 fix PIPE clock specification for
 pcie1

For historical reasons on SM8450 the second PCIe host (pcie1) also keeps
a reference to the PIPE clock coming from the PHY. Commit e76862840660
("arm64: dts: qcom: sm8450: correct pcie1 phy clocks inputs to gcc") has
updated the PHY to use #clock-cells = <1>, making just <&pcie1_phy>
clock specification invalid. Update corresponding clock entry in the
PCIe1 host node.

 /soc@...cie@...8000: Failed to get clk index: 2 ret: -22
 qcom-pcie 1c08000.pcie: Failed to get clocks
 qcom-pcie 1c08000.pcie: probe with driver qcom-pcie failed with error -22

Fixes: e76862840660 ("arm64: dts: qcom: sm8450: correct pcie1 phy clocks inputs to gcc")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
---
 arch/arm64/boot/dts/qcom/sm8450.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/sm8450.dtsi b/arch/arm64/boot/dts/qcom/sm8450.dtsi
index 9bafb3b350ff..38cb524cc568 100644
--- a/arch/arm64/boot/dts/qcom/sm8450.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8450.dtsi
@@ -1973,7 +1973,7 @@ &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>,
 
 			clocks = <&gcc GCC_PCIE_1_PIPE_CLK>,
 				 <&gcc GCC_PCIE_1_PIPE_CLK_SRC>,
-				 <&pcie1_phy>,
+				 <&pcie1_phy QMP_PCIE_PIPE_CLK>,
 				 <&rpmhcc RPMH_CXO_CLK>,
 				 <&gcc GCC_PCIE_1_AUX_CLK>,
 				 <&gcc GCC_PCIE_1_CFG_AHB_CLK>,

---
base-commit: 58ca61c1a866bfdaa5e19fb19a2416764f847d75
change-id: 20241006-fix-sm8450-pcie1-4be23e8bf156

Best regards,
-- 
Dmitry Baryshkov <dmitry.baryshkov@...aro.org>