| commit | 3d15aacbb802af72b4ff0c3ba576536cdb3bace0 | |
| author | Andrew Bresticker <abrestic@chromium.org> | |
| Mon, 20 May 2013 05:58:07 +0000 (19 22:58 -0700) | ||
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | |
| Mon, 20 May 2013 12:58:49 +0000 (20 13:58 +0100) | ||
| tree | 63871d0c27cfffcd6b4bba7a242913d8a846655e | treesnapshot (tar.gz zip) |
| parent | f722406faae2d073cc1d01063d1123c35425939e | commitdiff |
ASoC: max98090: request IRQF_ONESHOT interrupt
request_threaded_irq() rejects calls which both do not specify a handler
(indicating that the primary IRQ handler should be used) and do not set
IRQF_ONESHOT because the combination is unsafe with level-triggered
interrupts. It is safe in this case, though, since max98090 IRQs are
edge-triggered and the interrupts aren't ACK'ed until the codec's IRQ
status register is read. Because of this, an IRQF_ONESHOT interrupt
doesn't really make a difference, but request one anyway in order to make
request_threaded_irq() happy.
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
request_threaded_irq() rejects calls which both do not specify a handler
(indicating that the primary IRQ handler should be used) and do not set
IRQF_ONESHOT because the combination is unsafe with level-triggered
interrupts. It is safe in this case, though, since max98090 IRQs are
edge-triggered and the interrupts aren't ACK'ed until the codec's IRQ
status register is read. Because of this, an IRQF_ONESHOT interrupt
doesn't really make a difference, but request one anyway in order to make
request_threaded_irq() happy.
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| sound/soc/codecs/max98090.c | diffblobblamehistory |