kernel/drivers/iio/accel/mc3230.c, branch linux-6.18.y

iio: accel: Drop unnecessary -ENOMEM messages

2025-08-25T11:28:10Z

The drivers do not require their own error messages for error -ENOMEM, memory allocation failures. So remove the dev_err() messages from the probe(). Signed-off-by: Dixit Parmar Link: https://patch.msgid.link/20250822-enomam_logs-v1-1-db87f2974552@gmail.com Signed-off-by: Jonathan Cameron

iio: accel: mc3230: add mc3510c support

2025-02-03T19:15:38Z

This change integrates mc3510c support into the mc3230 driver. MC3510C uses the same registers as MC3230, but a different value scale. Tested on Huawei MediaPad T3 10 (huawei-agassi) Signed-off-by: Vasiliy Doylov Link: https://patch.msgid.link/20250116-mainlining-mc3510c-v4-5-a41308b85ec2@gmail.com Signed-off-by: Jonathan Cameron

iio: accel: mc3230: add multiple devices support

2025-02-03T19:15:38Z

Refactor code to support multiple generations of MCUBE devices by defining name, chip id and product code in mc3230_chip_info struct. Signed-off-by: Vasiliy Doylov Link: https://patch.msgid.link/20250116-mainlining-mc3510c-v4-4-a41308b85ec2@gmail.com Signed-off-by: Jonathan Cameron

iio: accel: mc3230: add OF match table

2025-02-03T19:15:38Z

This will make the driver auto loaded via device-tree. Signed-off-by: Vasiliy Doylov Link: https://patch.msgid.link/20250116-mainlining-mc3510c-v4-3-a41308b85ec2@gmail.com Signed-off-by: Jonathan Cameron

iio: accel: mc3230: add mount matrix support

2025-02-03T19:15:38Z

This patch allows to read a mount-matrix device tree property and report to user-space or in-kernel iio clients. Signed-off-by: Vasiliy Doylov Link: https://patch.msgid.link/20250116-mainlining-mc3510c-v4-2-a41308b85ec2@gmail.com Signed-off-by: Jonathan Cameron

iio: Drop explicit initialization of struct i2c_device_id::driver_data to 0

2024-05-27T08:48:57Z

These drivers don't use the driver_data member of struct i2c_device_id, so don't explicitly initialize this member. This prepares putting driver_data in an anonymous union which requires either no initialization or named designators. But it's also a nice cleanup on its own. While add it, also remove commas after the sentinel entries. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/20240508072928.2135858-2-u.kleine-koenig@pengutronix.de Signed-off-by: Jonathan Cameron

iio: Switch i2c drivers back to use .probe()

2023-05-21T17:54:53Z

After commit b8a1a4cd5a98 ("i2c: Provide a temporary .probe_new() call-back type"), all drivers being converted to .probe_new() and then 03c835f498b5 ("i2c: Switch .probe() to not take an id parameter") convert back to (the new) .probe() to be able to eventually drop .probe_new() from struct i2c_driver. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/20230515205048.19561-1-u.kleine-koenig@pengutronix.de Signed-off-by: Jonathan Cameron

iio: accel: mc3230: Convert to i2c's .probe_new()

2022-11-23T19:44:02Z

The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/20221023132302.911644-13-u.kleine-koenig@pengutronix.de Signed-off-by: Jonathan Cameron

i2c: Make remove callback return void

2022-08-16T10:46:26Z

The value returned by an i2c driver's remove function is mostly ignored. (Only an error message is printed if the value is non-zero that the error is ignored.) So change the prototype of the remove function to return no value. This way driver authors are not tempted to assume that passing an error to the upper layer is a good idea. All drivers are adapted accordingly. There is no intended change of behaviour, all callbacks were prepared to return 0 before. Reviewed-by: Peter Senna Tschudin Reviewed-by: Jeremy Kerr Reviewed-by: Benjamin Mugnier Reviewed-by: Javier Martinez Canillas Reviewed-by: Crt Mori Reviewed-by: Heikki Krogerus Acked-by: Greg Kroah-Hartman Acked-by: Marek Behún # for leds-turris-omnia Acked-by: Andy Shevchenko Reviewed-by: Petr Machata # for mlxsw Reviewed-by: Maximilian Luz # for surface3_power Acked-by: Srinivas Pandruvada # for bmc150-accel-i2c + kxcjk-1013 Reviewed-by: Hans Verkuil # for media/* + staging/media/* Acked-by: Miguel Ojeda # for auxdisplay/ht16k33 + auxdisplay/lcd2s Reviewed-by: Luca Ceresoli # for versaclock5 Reviewed-by: Ajay Gupta # for ucsi_ccg Acked-by: Jonathan Cameron # for iio Acked-by: Peter Rosin # for i2c-mux-*, max9860 Acked-by: Adrien Grassein # for lontium-lt8912b Reviewed-by: Jean Delvare # for hwmon, i2c-core and i2c/muxes Acked-by: Corey Minyard # for IPMI Reviewed-by: Vladimir Oltean Acked-by: Dmitry Torokhov Acked-by: Sebastian Reichel # for drivers/power Acked-by: Krzysztof Hałasa Signed-off-by: Uwe Kleine-König Signed-off-by: Wolfram Sang

iio:accel:mc3230: Remove duplicated error reporting in .remove()

2022-06-11T13:35:25Z

Returning an error value in an i2c remove callback results in an error message being emitted by the i2c core, but otherwise it doesn't make a difference. The device goes away anyhow and the devm cleanups are called. As mc3230_set_opcon() already emits an error message on failure and the additional error message by the i2c core doesn't add any useful information, change the return value to zero to suppress this message. This patch is a preparation for making i2c remove callbacks return void. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/20220430081607.15078-2-u.kleine-koenig@pengutronix.de Signed-off-by: Jonathan Cameron