iio: pressure: mprls0025pa improve driver error resilience
authorPetre Rodan <petre.rodan@subdimension.ro>
Fri, 29 Dec 2023 09:24:33 +0000 (11:24 +0200)
committerJonathan Cameron <Jonathan.Cameron@huawei.com>
Tue, 23 Jan 2024 22:06:53 +0000 (22:06 +0000)
commit0a0fb0e63e5178905e9fdba8195686b4e2de26c4
tree2d3266c0cf7b77e167fd171111034d2da7026383
parent9e65506ca9c7ff716c8441a33417820ad61d3a16
iio: pressure: mprls0025pa improve driver error resilience

Improve driver error resilience by ignoring the measurement if any of
the 3 error flags gets set while interacting with the sensor.
Based on the datasheet, in table 14 on page 14, the status byte
contains:
    bit 5 busy flag - 1 if device is busy
    bit 2 memory integrity/error flag - 1 if integrity test failed
    bit 0 math saturation - 1 if internal math saturation has occurred

Co-developed-by: Andreas Klinger <ak@it-klinger.de>
Signed-off-by: Andreas Klinger <ak@it-klinger.de>
Signed-off-by: Petre Rodan <petre.rodan@subdimension.ro>
Link: https://lore.kernel.org/r/20231229092445.30180-6-petre.rodan@subdimension.ro
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
drivers/iio/pressure/mprls0025pa.c