diff options
| author | Masahiro Honda <[email protected]> | 2023-05-18 20:08:16 +0900 |
|---|---|---|
| committer | Jonathan Cameron <[email protected]> | 2023-05-20 16:34:52 +0100 |
| commit | 626d312028bec44209d0ecd5beaa9b1aa8945f7d (patch) | |
| tree | e8b487ed2c285feda1a27d4864fa1d1bf869d147 /lib/mpi/mpiutil.c | |
| parent | 55720d242052e860b9fde445e302e0425722e7f1 (diff) | |
iio: adc: ad_sigma_delta: Fix IRQ issue by setting IRQ_DISABLE_UNLAZY flag
The Sigma-Delta ADCs supported by this driver can use SDO as an interrupt
line to indicate the completion of a conversion. However, some devices
cannot properly detect the completion of a conversion by an interrupt.
This is for the reason mentioned in the following commit.
commit e9849777d0e2 ("genirq: Add flag to force mask in
disable_irq[_nosync]()")
A read operation is performed by an extra interrupt before the completion
of a conversion. At this time, the value read from the ADC data register
is the same as the previous conversion result. This patch fixes the issue
by setting IRQ_DISABLE_UNLAZY flag.
Fixes: 0c6ef985a1fd ("iio: adc: ad7791: fix IRQ flags")
Fixes: 1a913270e57a ("iio: adc: ad7793: Fix IRQ flag")
Fixes: e081102f3077 ("iio: adc: ad7780: Fix IRQ flag")
Fixes: 89a86da5cb8e ("iio: adc: ad7192: Add IRQ flag")
Fixes: 79ef91493f54 ("iio: adc: ad7124: Set IRQ type to falling")
Signed-off-by: Masahiro Honda <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Cc: <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>
Diffstat (limited to 'lib/mpi/mpiutil.c')
0 files changed, 0 insertions, 0 deletions