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Val Packett 22f885ea74 clk: qcom: gcc-sc8180x: Use retention for PCIe power domains 
[ Upstream commit ccb92c78b4 ]

As the PCIe host controller driver does not yet support dealing with the
loss of state during suspend, use retention for relevant GDSCs.

This fixes the link not surviving upon resume:

    nvme 0002:01:00.0: Unable to change power state from D3cold to D0, device inaccessible
    nvme nvme0: controller is down; will reset: CSTS=0xffffffff, PCI_STATUS read failed (134)
    nvme 0002:01:00.0: Unable to change power state from D3cold to D0, device inaccessible
    nvme nvme0: Disabling device after reset failure: -19

Fixes: 4433594bbe ("clk: qcom: gcc: Add global clock controller driver for SC8180x")
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Val Packett <val@packett.cool>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Link: https://lore.kernel.org/r/20260312112321.370983-5-val@packett.cool
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2026-06-01 17:35:36 +02:00
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README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.