linux-kernel - [PATCH 0/3] SC8280XP preparatory PCIe fixes

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Date: Wed, 27 Dec 2023 23:28:25 +0100
From: Konrad Dybcio <konrad.dybcio@...aro.org>
To: Bjorn Andersson <andersson@...nel.org>, 
 Rob Herring <robh+dt@...nel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, 
 Conor Dooley <conor+dt@...nel.org>, Johan Hovold <johan+linaro@...nel.org>
Cc: Marijn Suijten <marijn.suijten@...ainline.org>, 
 linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, 
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>, 
 Konrad Dybcio <konrad.dybcio@...ainline.org>, 
 Konrad Dybcio <konrad.dybcio@...aro.org>
Subject: [PATCH 0/3] SC8280XP preparatory PCIe fixes

Just a couple of minor fixes in preparation for PCIe shutdown (and by
extension CX, AOSD and DDR power collapse - anybody here a fan of
suspend?).

If you want to test this on your machine, you're gonna need:

- https://lore.kernel.org/all/20231227-topic-pmdomain_sync_cleanup-v1-1-5f36769d538b@linaro.org/
- https://lore.kernel.org/all/20231227-topic-psci_fw_sus-v1-0-6910add70bf3@linaro.org/
- https://lore.kernel.org/all/20231227-topic-8280_pcie-v1-0-095491baf9e4@linaro.org/
- All PCIe devices that require fw must be fully booted (so that they can be suspended)
- You must not have any dangling resource votes (not the case on 8280-crd)

Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
Konrad Dybcio (3):
      arm64: dts: qcom: sc8280xp: Fix PCIe PHY power-domains
      arm64: dts: qcom: sc8280xp: Correct USB PHY power domains
      arm64: dts: qcom: sc8280xp-crd: Add PCIe CLKREQ# sleep state

 arch/arm64/boot/dts/qcom/sc8280xp-crd.dts | 78 ++++++++++++++++++++-----------
 arch/arm64/boot/dts/qcom/sc8280xp.dtsi    | 18 +++----
 2 files changed, 60 insertions(+), 36 deletions(-)
---
base-commit: 39676dfe52331dba909c617f213fdb21015c8d10
change-id: 20231227-topic-8280_pcie_dts-4d3a94efe6e7

Best regards,
-- 
Konrad Dybcio <konrad.dybcio@...aro.org>