]> git.baikalelectronics.ru Git - kernel.git/commit
iio: pressure: dps310: Adjust Timeout Settings
authorLakshmi Yadlapati <lakshmiy@us.ibm.com>
Tue, 29 Aug 2023 18:02:22 +0000 (13:02 -0500)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 19 Oct 2023 21:08:55 +0000 (23:08 +0200)
commitb166ce527540db9b9ef0bf2856e24ef24eab1672
tree30c0f341304f2b96229b427aa5dde4b36aa34255
parente93a7677f0ba13324ada8a5a98d90e9c4f73bca1
iio: pressure: dps310: Adjust Timeout Settings

commit 901a293fd96fb9bab843ba4cc7be3094a5aa7c94 upstream.

The DPS310 sensor chip has been encountering intermittent errors while
reading the sensor device across various system designs. This issue causes
the chip to become "stuck," preventing the indication of "ready" status
for pressure and temperature measurements in the MEAS_CFG register.

To address this issue, this commit fixes the timeout settings to improve
sensor stability:
- After sending a reset command to the chip, the timeout has been extended
  from 2.5 ms to 15 ms, aligning with the DPS310 specification.
- The read timeout value of the MEAS_CFG register has been adjusted from
  20ms to 30ms to match the specification.

Signed-off-by: Lakshmi Yadlapati <lakshmiy@us.ibm.com>
Fixes: 7b4ab4abcea4 ("iio: pressure: dps310: Reset chip after timeout")
Link: https://lore.kernel.org/r/20230829180222.3431926-2-lakshmiy@us.ibm.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/iio/pressure/dps310.c