kernel/drivers/iio, branch master

Merge tag 'i3c/fixes-for-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux

2026-03-14T23:25:10Z

Pull i3c fixes from Alexandre Belloni: "This introduces the I3C_OR_I2C symbol which is not a fix per se but is affecting multiple subsystems so it is included to ease synchronization. Apart from that, Adrian is mostly fixing the mipi-i3c-hci driver DMA handling, and I took the opportunity to add two fixes for the dw-i3c driver. Subsystem: - simplify combined i3c/i2c dependencies Drivers: - dw: handle 2C properly, fix possible race condition - mipi-i3c-hci: many DMA related fixes" * tag 'i3c/fixes-for-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: i3c: dw-i3c-master: Set SIR_REJECT in DAT on device attach and reattach i3c: master: dw-i3c: Fix missing of_node for virtual I2C adapter i3c: mipi-i3c-hci: Fallback to software reset when bus disable fails i3c: mipi-i3c-hci: Fix handling of shared IRQs during early initialization i3c: mipi-i3c-hci: Fix race in DMA error handling in interrupt context i3c: mipi-i3c-hci: Consolidate common xfer processing logic i3c: mipi-i3c-hci: Restart DMA ring correctly after dequeue abort i3c: mipi-i3c-hci: Add missing TID field to no-op command descriptor i3c: mipi-i3c-hci: Correct RING_CTRL_ABORT handling in DMA dequeue i3c: mipi-i3c-hci: Fix race between DMA ring dequeue and interrupt handler i3c: mipi-i3c-hci: Fix race in DMA ring dequeue i3c: mipi-i3c-hci: Fix race in DMA ring enqueue for parallel xfers i3c: mipi-i3c-hci: Consolidate spinlocks i3c: mipi-i3c-hci: Factor out DMA mapping from queuing path i3c: mipi-i3c-hci: Fix Hot-Join NACK i3c: mipi-i3c-hci: Use ETIMEDOUT instead of ETIME for timeout errors i3c: simplify combined i3c/i2c dependencies

i3c: simplify combined i3c/i2c dependencies

2026-02-27T15:33:07Z

All combined i2c/i3c drivers appear to suffer from the same link time problem when CONFIG_I3C is set to 'm': arm-linux-gnueabi-ld: drivers/iio/magnetometer/mmc5633.o: in function `mmc5633_i3c_driver_init': mmc5633.c:(.init.text+0x30): undefined reference to `i3c_driver_register_with_owner' This was previously fixed every time by marking individual drivers as 'depends on I2C; depends on I3C || !I3C', but this gets tedious and is somewhat confusing. Add a Kconfig symbol 'I3C_OR_I2C' to help replace those dependencies, and use this in all the existing drivers that had already fixed it as well as the new mmc5633 driver. Reviewed-by: Jonathan Cameron Signed-off-by: Arnd Bergmann Acked-by: Guenter Roeck Acked-by: Jonathan Cameron Link: https://patch.msgid.link/20260204164216.544409-1-arnd@kernel.org Signed-off-by: Alexandre Belloni

iio: imu: adis: Fix NULL pointer dereference in adis_init

2026-02-23T08:24:39Z

The adis_init() function dereferences adis->ops to check if the individual function pointers (write, read, reset) are NULL, but does not first check if adis->ops itself is NULL. Drivers like adis16480, adis16490, adis16545 and others do not set custom ops and rely on adis_init() assigning the defaults. Since struct adis is zero-initialized by devm_iio_device_alloc(), adis->ops is NULL when adis_init() is called, causing a NULL pointer dereference: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 pc : adis_init+0xc0/0x118 Call trace: adis_init+0xc0/0x118 adis16480_probe+0xe0/0x670 Fix this by checking if adis->ops is NULL before dereferencing it, falling through to assign the default ops in that case. Fixes: 3b29bcee8f6f ("iio: imu: adis: Add custom ops struct") Signed-off-by: Radu Sabau Reviewed-by: Andy Shevchenko Reviewed-by: Antoniu Miclaus Cc: Signed-off-by: Jonathan Cameron

iio: imu: inv_icm45600: fix regulator put warning when probe fails

2026-02-23T08:24:39Z

When the driver probe fails we encounter a regulator put warning because vddio regulator is not stopped before release. The issue comes from pm_runtime not already setup when core probe fails and the vddio regulator disable callback is called. Fix the issue by setting pm_runtime active early before vddio regulator resource cleanup. This requires to cut pm_runtime set_active and enable in 2 function calls. Fixes: 7ff021a3faca ("iio: imu: inv_icm45600: add new inv_icm45600 driver") Signed-off-by: Jean-Baptiste Maneyrol Cc: stable@vger.kernel.org Signed-off-by: Jonathan Cameron

iio: buffer: Fix wait_queue not being removed

2026-02-23T08:24:39Z

In the edge case where the IIO device is unregistered while we're buffering, we were directly returning an error without removing the wait queue. Instead, set 'ret' and break out of the loop. Fixes: 9eeee3b0bf19 ("iio: Add output buffer support") Signed-off-by: Nuno Sá Reviewed-by: David Lechner Cc: Signed-off-by: Jonathan Cameron

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

2026-02-23T08:24:39Z

The return value of pm_runtime_get_sync() is not checked, allowing the driver to access hardware that may fail to resume. The device usage count is also unconditionally incremented. Use pm_runtime_resume_and_get() which propagates errors and avoids incrementing the usage count on failure. In preenable, add pm_runtime_put_autosuspend() on set_8khz_samplerate() failure since postdisable does not run when preenable fails. Fixes: 3904b28efb2c ("iio: gyro: Add driver for the MPU-3050 gyroscope") Reviewed-by: Linus Walleij Signed-off-by: Antoniu Miclaus Cc: Signed-off-by: Jonathan Cameron

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

2026-02-23T08:24:38Z

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

iio: adc: ad7768-1: Fix ERR_PTR dereference in ad7768_fill_scale_tbl

2026-02-23T08:24:38Z

The function iio_get_current_scan_type() can return an error pointer, the return value scan_type is not checked for this and immediately dereferenced which can cause a kernel panic. Add check for IS_ERR() and propagate the error back. Fixes: ff085189cb17 ("iio: adc: ad7768-1: add support for ADAQ776x-1 ADC Family") Reported-by: kernel test robot Reported-by: Dan Carpenter Closes: https://lore.kernel.org/r/202602051234.5gArzLyZ-lkp@intel.com/ Signed-off-by: Ethan Tidmore Reviewed-by: Andy Shevchenko Signed-off-by: Jonathan Cameron

iio: chemical: sps30_serial: fix buffer size in sps30_serial_read_meas()

2026-02-23T08:24:38Z

sizeof(num) evaluates to sizeof(size_t) which is 8 bytes on 64-bit, but the buffer elements are only 4 bytes. The same function already uses sizeof(*meas) on line 312, making the mismatch evident. Use sizeof(*meas) consistently. Fixes: b2e171f5a5c6 ("iio: sps30: add support for serial interface") Signed-off-by: Antoniu Miclaus Acked-by: Tomasz Duszynski Reviewed-by: Andy Shevchenko Cc: Signed-off-by: Jonathan Cameron

iio: chemical: sps30_i2c: fix buffer size in sps30_i2c_read_meas()

2026-02-23T08:24:38Z

sizeof(num) evaluates to sizeof(size_t) (8 bytes on 64-bit) instead of the intended __be32 element size (4 bytes). Use sizeof(*meas) to correctly match the buffer element type. Fixes: 8f3f13085278 ("iio: sps30: separate core and interface specific code") Signed-off-by: Antoniu Miclaus Acked-by: Tomasz Duszynski Reviewed-by: Andy Shevchenko Cc: Signed-off-by: Jonathan Cameron