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| author | Manikanta Maddireddy <mmaddireddy@nvidia.com> | 2026-03-25 00:37:44 +0530 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2026-04-08 16:56:34 -0500 |
| commit | 9fa0c242f8d7acf1b124d4462d18f4023573ac1c (patch) | |
| tree | 4fa321e9550d85bf4898f751858fefcca255ec61 /tools/perf/scripts/python/stackcollapse.py | |
| parent | 74dd8efe4d6cead433162147333af989a568aac7 (diff) | |
PCI: tegra194: Disable LTSSM after transition to Detect on surprise link down
After the link reaches a Detect-related LTSSM state, disable LTSSM so it
does not keep toggling between Polling and Detect. Do this by polling for
the Detect state first, then clearing APPL_CTRL_LTSSM_EN in both
tegra_pcie_dw_pme_turnoff() and pex_ep_event_pex_rst_assert().
Fixes: 56e15a238d92 ("PCI: tegra: Add Tegra194 PCIe support")
Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
Signed-off-by: Manikanta Maddireddy <mmaddireddy@nvidia.com>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://patch.msgid.link/20260324190755.1094879-4-mmaddireddy@nvidia.com
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions