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| author | Manikanta Maddireddy <[email protected]> | 2019-06-18 18:02:05 +0000 |
|---|---|---|
| committer | Lorenzo Pieralisi <[email protected]> | 2019-07-05 12:57:58 +0000 |
| commit | dbdcc22c845be72d0b930a82ca20df8c92c677b9 (patch) | |
| tree | 3698bf8de13b58c9eb9c8339d349ffe571c7928b /tools/perf/scripts/python/event_analyzing_sample.py | |
| parent | PCI: Add DT binding for "reset-gpios" property (diff) | |
| download | kernel-dbdcc22c845be72d0b930a82ca20df8c92c677b9.tar.gz kernel-dbdcc22c845be72d0b930a82ca20df8c92c677b9.zip | |
PCI: tegra: Add support for GPIO based PERST#
Tegra PCIe has fixed per port SFIO line to signal PERST#, which can be
controlled by AFI port register. However, if a platform routes a
different GPIO to the PCIe slot, then port register cannot control it.
Add support for GPIO based PERST# signal for such platforms. GPIO number
comes from per port PCIe device tree node. PCIe driver probe doesn't
fail if per port "reset-gpios" property is not populated, so platforms
that require this workaround must make sure that the DT property is not
missed in the corresponding device tree.
Link: https://lore.kernel.org/linux-pci/[email protected]/
Signed-off-by: Manikanta Maddireddy <[email protected]>
[[email protected]: squashed in fix in Link]
Signed-off-by: Lorenzo Pieralisi <[email protected]>
Acked-by: Thierry Reding <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/event_analyzing_sample.py')
0 files changed, 0 insertions, 0 deletions