kernel/drivers/iio/gyro/mpu3050-i2c.c, branch linux-rolling-stable

iio: gyro: mpu3050-i2c: fix pm_runtime error handling

2026-03-19T15:15:30Z

commit 91f950b4cbb1aa9ea4eb3999f1463e8044b717fb upstream. The return value of pm_runtime_get_sync() is not checked, and the function always returns success. This allows I2C mux operations to proceed even when the device fails to resume. Use pm_runtime_resume_and_get() and propagate its return value to properly handle resume failures. Fixes: 3904b28efb2c ("iio: gyro: Add driver for the MPU-3050 gyroscope") Signed-off-by: Antoniu Miclaus Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman

iio: gyro: Remove redundant pm_runtime_mark_last_busy() calls

2025-08-25T15:04:47Z

pm_runtime_put_autosuspend(), pm_runtime_put_sync_autosuspend(), pm_runtime_autosuspend() and pm_request_autosuspend() now include a call to pm_runtime_mark_last_busy(). Remove the now-reduntant explicit call to pm_runtime_mark_last_busy(). Signed-off-by: Sakari Ailus Reviewed-by: Linus Walleij Reviewed-by: Rui Miguel Silva Link: https://patch.msgid.link/20250825135401.1765847-7-sakari.ailus@linux.intel.com Signed-off-by: Jonathan Cameron

iio: normalize array sentinel style

2025-04-22T18:10:04Z

Use `\t(\{ ?\},|\{\}|\{\s*/\*.*\*/\s*\},?)$` regex to find and replace the array sentinel in all IIO drivers to the same style. For some time, we've been trying to consistently use `{ }` (no trailing comma, no comment, one space between braces) for array sentinels in the IIO subsystem. Still nearly 50% of existing code uses a different style. To save reviewers from having to request this trivial change as frequently, let's normalize the style in all existing IIO drivers. At least when code is copy/pasted to new drivers, the style will be consistent. Signed-off-by: David Lechner Reviewed-by: Andy Shevchenko Link: https://patch.msgid.link/20250411-iio-sentinel-normalization-v1-1-d293de3e3d93@baylibre.com Signed-off-by: Jonathan Cameron

i2c: mux: Remove class argument from i2c_mux_add_adapter()

2024-05-13T14:13:19Z

99a741aa7a2d ("i2c: mux: gpio: remove support for class-based device instantiation") removed the last call to i2c_mux_add_adapter() with a non-null class argument. Therefore the class argument can be removed. Note: Class-based device instantiation is a legacy mechanism which shouldn't be used in new code, so we can rule out that this argument may be needed again in the future. Signed-off-by: Heiner Kallweit Reviewed-by: Thomas Zimmermann Acked-by: Peter Rosin Reviewed-by: Laurent Pinchart Acked-by: Jonathan Cameron Acked-by: Rob Herring (Arm) Signed-off-by: Wolfram Sang

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: gyro: mpu3050-i2c: Convert to i2c's .probe_new()

2022-11-23T20:01:41Z

.probe_new() doesn't get the i2c_device_id * parameter, so determine that explicitly in the probe function. Signed-off-by: Uwe Kleine-König Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20221118224540.619276-96-uwe@kleine-koenig.org 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: gyro: mpu3050: Use pm_ptr() and DEFINE_RUNTIME_DEV_PM_OPS()

2022-06-14T10:53:10Z

Using this approach as opposed to CONFIG_PM guards allows the compiler to remove the unused code instead of doing it manually. Signed-off-by: Jonathan Cameron Cc: Linus Walleij Reviewed-by: Linus Walleij Link: https://lore.kernel.org/r/20220220175149.503495-3-jic23@kernel.org

iio: gyro: mpu3050: Make mpu3050_common_remove() return void

2022-05-01T18:01:13Z

This function (up to now) returns zero unconditionally, so there isn't any benefit of returning a value. Make it return void to be able to see at a glance that the return value of mpu3050_i2c_remove is always zero. This patch is a preparation for making i2c remove callbacks return void. Signed-off-by: Uwe Kleine-König Reviewed-by: Linus Walleij Link: https://lore.kernel.org/r/20220425191735.59032-1-u.kleine-koenig@pengutronix.de Signed-off-by: Jonathan Cameron

iio: gyro: mpu3050: Use vsprintf extension %pe for symbolic error name

2020-04-19T15:56:16Z

Utilize %pe format specifier from vsprintf while printing error logs with dev_err(). Discards the use of unnecessary explicit casting and prints symbolic error name which might prove to be convenient during debugging. Signed-off-by: Nishant Malpani Signed-off-by: Jonathan Cameron