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authorVidya Sagar <vidyas@nvidia.com>2020-12-03 16:34:51 +0300
committerLorenzo Pieralisi <lorenzo.pieralisi@arm.com>2020-12-07 19:43:52 +0300
commitcf68e3b7a6b75d8f0e68c80fb353cde1878ef682 (patch)
treeb3f4731b47d1a8138e11f494b30a094a937032d6 /sound/Kconfig
parent3d710af75bcdea2e9cb8cdb2f7663cef7b133f5e (diff)
downloadlinux-cf68e3b7a6b75d8f0e68c80fb353cde1878ef682.tar.xz
PCI: tegra: Disable LTSSM during L2 entry
PCIe cards like Marvell SATA controller and some of the Samsung NVMe drives don't support taking the link to L2 state. When the link doesn't go to L2 state, Tegra194 requires the LTSSM to be disabled to allow PHY to start the next link up process cleanly during suspend/resume sequence. Failing to disable LTSSM results in the PCIe link not coming up in the next resume cycle. Link: https://lore.kernel.org/r/20201203133451.17716-6-vidyas@nvidia.com Tested-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Vidya Sagar <vidyas@nvidia.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Thierry Reding <treding@nvidia.com>
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