linux-kernel - [PATCH 0/2] PCI: qcom: Enable ASPM on host bridge and devices

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Date:   Wed,  9 Aug 2023 13:48:38 +0530
From:   Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To:     lpieralisi@...nel.org, kw@...ux.com, bhelgaas@...gle.com
Cc:     robh@...nel.org, gustavo.pimentel@...opsys.com,
        jingoohan1@...il.com, andersson@...nel.org,
        linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Subject: [PATCH 0/2] PCI: qcom: Enable ASPM on host bridge and devices

Hi,

This series enables ASPM by default on the host bridge and devices of selected
Qcom platforms.

The motivation behind enabling ASPM in the controller driver is provided in the
commit message of patch 2/2.

This series has been tested on SC8280-CRD and Lenovo Thinkpad X13s laptop
and it helped save ~0.6W of power during runtime.

- Mani

Manivannan Sadhasivam (2):
  PCI: dwc: Add host_post_init() callback
  PCI: qcom: Enable ASPM for platforms supporting 1.9.0 ops

 .../pci/controller/dwc/pcie-designware-host.c |  3 ++
 drivers/pci/controller/dwc/pcie-designware.h  |  1 +
 drivers/pci/controller/dwc/pcie-qcom.c        | 28 +++++++++++++++++++
 3 files changed, 32 insertions(+)

-- 
2.25.1