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| author | Sergio Paracuellos <sergio.paracuellos@gmail.com> | 2021-08-23 19:08:03 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-08-26 12:06:37 +0200 |
| commit | 7d761b084b3c785e1fbbe707fbdf7baba905c6ad (patch) | |
| tree | 92b7ed446ceeebd6bf880a718610406e17b5087f /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | a69bbd2f77a6e26b2b1c3d7fcc5c715169dc01c5 (diff) | |
staging: mt7621-pci: fix hang when nothing is connected to pcie ports
When nothing is connected to pcie ports, each port is set to reset state.
When this occurs, next access result in a hang on boot as follows:
mt7621-pci 1e140000.pcie: pcie0 no card, disable it (RST & CLK)
mt7621-pci 1e140000.pcie: pcie1 no card, disable it (RST & CLK)
mt7621-pci 1e140000.pcie: pcie2 no card, disable it (RST & CLK)
[ HANGS HERE ]
Fix this just detecting 'nothing is connected state' to avoid next accesses
to pcie port related configuration registers.
Fixes: b99cc3a2b6b6 ("staging: mt7621-pci: avoid custom 'map_irq' function")
Cc: stable <stable@vger.kernel.org>
Reported-by: DENG Qingfang <dqfext@gmail.com>
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20210823170803.2108-1-sergio.paracuellos@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions