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| author | Daniel Mack <[email protected]> | 2020-05-21 11:11:51 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2020-05-22 11:06:14 +0200 |
| commit | 2d12fc792cdd43da8502de4a425a98e520b1c302 (patch) | |
| tree | ef4637d6d21417e3400834e4382bd43ab811d6ba /net/switchdev/switchdev.c | |
| parent | 6393ff1c4435acc343b1481f5b834b918cb42b12 (diff) | |
sc16is7xx: Allow sharing the IRQ line
When the interrupt line is shared with other devices, the IRQ must be
level-triggered, as only one device can trigger a falling edge. To support
this, try to acquire the IRQ with IRQF_TRIGGER_LOW|IRQF_SHARED first.
Interrupt controllers that lack support for level-triggers will return an
error, in which case the driver will now retry the acqusition with
IRQF_TRIGGER_FALLING, which was also the default before.
Signed-off-by: Daniel Mack <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'net/switchdev/switchdev.c')
0 files changed, 0 insertions, 0 deletions