From: Lorenzo Bianconi <lorenzo@kernel.org>
To: jic23@kernel.org
Cc: lorenzo.bianconi@redhat.com, linux-iio@vger.kernel.org,
mario.tesi@st.com, devicetree@vger.kernel.org
Subject: [PATCH v2 0/2] add the capability to disable st_lsm6dsx sensor-hub
Date: Sat, 13 Nov 2021 16:23:13 +0100 [thread overview]
Message-ID: <cover.1636816719.git.lorenzo@kernel.org> (raw)
Introduce the capability to disable sensorhub through a device-tree property
since since there are some configurations where users want to
explicitly disable sensor-hub auto-probing at bootstrap.
A typical configuration is when the sensorhub clock/data lines are connected
to a pull-up resistor since no slave sensors are connected to the i2c master.
If SDO/SA0 line is connected to the same pull-up resistor, when the driver
tries to probe slave devices connected on sensor-hub, it will force SDO/SA0
line to low, modifying the device i2c address.
Changes since v1:
- rename disable-shub property in disable-sensor-hub
- improve commit log
Lorenzo Bianconi (2):
iio: imu: st_lsm6dsx: add dts property to disable sensor-hub
Documentation: dt: iio: st_lsm6dsx: add disable-sensor-hub property
Documentation/devicetree/bindings/iio/imu/st,lsm6dsx.yaml | 7 +++++++
drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c | 4 +++-
2 files changed, 10 insertions(+), 1 deletion(-)
--
2.31.1
next reply other threads:[~2021-11-13 15:23 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-13 15:23 Lorenzo Bianconi [this message]
2021-11-13 15:23 ` [PATCH v2 1/2] iio: imu: st_lsm6dsx: add dts property to disable sensor-hub Lorenzo Bianconi
2021-11-13 15:23 ` [PATCH v2 2/2] Documentation: dt: iio: st_lsm6dsx: add disable-sensor-hub property Lorenzo Bianconi
2021-11-29 21:26 ` Rob Herring
2021-12-04 15:12 ` Jonathan Cameron
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