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[ Upstream commit 8427bbc224863e14d905c87920d4005cb3e88ac3 ] The NVMe device in question drops off the PCIe bus after system suspend. I've tried several approaches to workaround this issue, but none of them works: - NVME_QUIRK_DELAY_BEFORE_CHK_RDY - NVME_QUIRK_NO_DEEPEST_PS - Disable APST before controller shutdown - Delay between controller shutdown and system suspend - Explicitly set power state to 0 before controller shutdown Fortunately it's a desktop, so disable APST won't hurt the battery. Also, change the quirk function name to reflect it's for vendor combination quirks. BugLink: https://bugs.launchpad.net/bugs/1705748 Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.