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| author | Fei Shao <fshao@chromium.org> | 2025-12-17 13:10:47 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-01-17 18:35:32 +0300 |
| commit | 6fcfcf792ce8a46c95317ea0099aff5290dda9a6 (patch) | |
| tree | f9f217b9d8ecf7bfabcca32c17e046ba81bdfb79 /tools/perf/scripts/python/stackcollapse.py | |
| parent | 6db8e186c977763542f1c813011bdcad691a73b8 (diff) | |
| download | linux-6fcfcf792ce8a46c95317ea0099aff5290dda9a6.tar.xz | |
spi: mt65xx: Use IRQF_ONESHOT with threaded IRQ
[ Upstream commit 8c04b77f87e6e321ae6acd28ce1de5553916153f ]
This driver is migrated to use threaded IRQ since commit 5972eb05ca32
("spi: spi-mt65xx: Use threaded interrupt for non-SPIMEM transfer"), and
we almost always want to disable the interrupt line to avoid excess
interrupts while the threaded handler is processing SPI transfer.
Use IRQF_ONESHOT for that purpose.
In practice, we see MediaTek devices show SPI transfer timeout errors
when communicating with ChromeOS EC in certain scenarios, and with
IRQF_ONESHOT, the issue goes away.
Signed-off-by: Fei Shao <fshao@chromium.org>
Link: https://patch.msgid.link/20251217101131.1975131-1-fshao@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions