kernel/git/stable/linux.git/drivers/iio/frequency, branch master

Merge tag 'v7.2-rc2' into togreg

2026-07-06T15:59:47+00:00

Linux 7.2-rc2 Done to resolve conflicts with header reorg around mod_devicetable.h and provide a base for other inflight series that touch the includes.

Replace by more specific (c files)

2026-07-03T05:38:17+00:00

Replace the #include of by the more specific where applicable. For most cases the include can be dropped completely, only a few drivers need one or two headers added. Acked-by: Danilo Krummrich Acked-by: Takashi Sakamoto Acked-by: Bjorn Helgaas Link: https://patch.msgid.link/1a3f2007c5c5dcf555c09a4035ce3ae8ef1b6c49.1782808461.git.u.kleine-koenig@baylibre.com Signed-off-by: Uwe Kleine-König (The Capable Hub)

iio: Initialize spi_device_id arrays using member names

2026-06-29T23:15:56+00:00

While being less compact, using named initializers allows to more easily see which members of the structs are assigned which value without having to lookup the declaration of the struct. And it's also more robust against changes to the struct definition. The mentioned robustness is relevant for a planned change to struct spi_device_id that replaces .driver_data by an anonymous union. This patch doesn't modify the compiled arrays, only their representation in source form benefits. The former was confirmed with x86 and arm64 builds. Signed-off-by: Uwe Kleine-König (The Capable Hub) Acked-by: Linus Walleij Reviewed-by: Nuno Sá Signed-off-by: Jonathan Cameron

iio: Drop unused assignment of spi_device_id driver data

2026-06-29T23:15:56+00:00

The drivers explicitly set the .driver_data member of struct spi_device_id to zero without relying on that value. Drop these unused assignments. While touching these arrays unify spacing and use named initializers for .name. This patch doesn't modify the compiled arrays, only their representation in source form benefits. The former was confirmed with x86 and arm64 builds. Signed-off-by: Uwe Kleine-König (The Capable Hub) Reviewed-by: Nuno Sá Signed-off-by: Jonathan Cameron

iio: frequency: ad9523: Simplify driver a bit

2026-06-29T23:15:56+00:00

spi driver data is only set but never used, so the assignment can be dropped. Also the spi id_table's .driver_data is unused and can be dropped. While touching the spi id_table modify it to use a named initializer. Signed-off-by: Uwe Kleine-König (The Capable Hub) Reviewed-by: Nuno Sá Signed-off-by: Jonathan Cameron

iio: frequency: adf41513: features on frequency change

2026-06-29T23:15:52+00:00

Set Bleed current when PFD frequency changes (bleed enabled when in fractional mode). Set lock detector window size, handling bias and precision. Add phase resync support, setting clock dividers when PFD frequency changes. Signed-off-by: Rodrigo Alencar Signed-off-by: Jonathan Cameron

iio: frequency: adf41513: handle LE synchronization feature

2026-06-29T23:15:52+00:00

When LE sync is enabled, it must be set after powering up and it must be disabled when powering down. It is recommended when using the PLL as a frequency synthesizer, where reference signal will always be present while the device is being configured. Signed-off-by: Rodrigo Alencar Signed-off-by: Jonathan Cameron

iio: frequency: adf41513: driver implementation

2026-06-29T23:15:52+00:00

The driver is based on existing PLL drivers in the IIO subsystem and implements the following key features: - Integer-N and fractional-N (fixed/variable modulus) synthesis modes; - High-resolution frequency calculations using microhertz (µHz) precision to handle sub-Hz resolution across multi-GHz frequency ranges; - IIO debugfs interface for direct register access; - FW property parsing from devicetree including charge pump settings and reference path configuration; - Power management support with suspend/resume callbacks; - Lock detect GPIO monitoring. Signed-off-by: Rodrigo Alencar Signed-off-by: Jonathan Cameron

iio: frequency: adf4377: replace mutex_lock/unlock with guard(mutex)()

2026-06-29T18:05:37+00:00

Replace manual mutex_lock()/mutex_unlock() calls with guard(mutex)() from cleanup.h. Using guard(mutex)() from cleanup.h allows the compiler to enforce lock release on every exit path, eliminating the error-prone manual lock/unlock pattern and the goto-based exit labels that existed in adf4377_get_freq() and adf4377_set_freq(). This reduces the chance of lock imbalance bugs. Signed-off-by: Eduardo Guedes Co-developed-by: Lucca Ciriac Signed-off-by: Lucca Ciriac Reviewed-by: Andy Shevchenko Signed-off-by: Jonathan Cameron

iio: frequency: adrf6780: replace usleep_range() with fsleep()

2026-05-31T09:59:38+00:00

The ADRF6780 datasheet (Rev. D, page 23, ADC section) says: "Wait approximately 200 us for the ADC to be ready." fsleep(200) expands to the same usleep_range(200, 250). Use the flexible sleep helper, which picks the right primitive for the given microsecond delay. Replace the generic "Recommended delay for the ADC to be ready" comment with the datasheet reference so the "why" of the wait is visible at the call site. No functional change. Signed-off-by: Stepan Ionichev Reviewed-by: Andy Shevchenko Reviewed-by: Joshua Crofts Signed-off-by: Jonathan Cameron