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

iio: frequency: adf4350: replace TODO with NOTE in adf4350_set_freq()

2026-03-25T20:20:16+00:00

Replace the TODO comment in adf4350_set_freq() with a NOTE explaining
that a constant-time approach using fls_long() was attempted but deemed
more complex without meaningful benefit for initialization code.

Signed-off-by: Neel Bullywon 
Reviewed-by: Andy Shevchenko 
Signed-off-by: Jonathan Cameron

Merge tag 'v7.0-rc4' into togreg

2026-03-22T12:20:42+00:00

Linux 7.0-rc4

Required for the ds4422 series which is build upon;
5187e03b817c ("iio: dac: ds4424: reject -128 RAW value")

iio: frequency: ad9523: use dev_err_probe

2026-03-21T21:12:24+00:00

Use dev_err_probe() instead of dev_err() in the probe path to ensure
proper handling of deferred probing and to simplify error handling.

Signed-off-by: Antoniu Miclaus 
Reviewed-by: Andy Shevchenko 
Signed-off-by: Jonathan Cameron

iio: frequency: ad9523: add dev variable

2026-03-21T21:12:24+00:00

Introduce a local struct device variable in ad9523_probe() to simplify
subsequent conversions and improve code readability.

Split pdata declaration and assignment since the result is validated
immediately after.

No functional change.

Signed-off-by: Antoniu Miclaus 
Reviewed-by: Andy Shevchenko 
Signed-off-by: Jonathan Cameron

iio: frequency: admv4420: use dev_err_probe

2026-03-21T21:12:24+00:00

Use dev_err_probe() instead of dev_err() in the probe path to ensure
proper handling of deferred probing and to simplify error handling.

Also fix the format specifier for vco_freq_hz from %lld to %llu since
it is u64 (unsigned), and add missing newline to the error message.

Reviewed-by: Andy Shevchenko 
Signed-off-by: Antoniu Miclaus 
Signed-off-by: Jonathan Cameron

iio: frequency: admv4420: add dev variable

2026-03-21T21:12:23+00:00

Introduce a local struct device variable in admv4420_probe() to
simplify subsequent conversions and improve code readability.

No functional change.

Reviewed-by: Andy Shevchenko 
Signed-off-by: Antoniu Miclaus 
Signed-off-by: Jonathan Cameron

iio: frequency: admv1013: fix NULL pointer dereference on str

2026-03-14T12:10:21+00:00

When device_property_read_string() fails, str is left uninitialized
but the code falls through to strcmp(str, ...), dereferencing a garbage
pointer. Replace manual read/strcmp with
device_property_match_property_string() and consolidate the SE mode
enums into a single sequential enum, mapping to hardware register
values via a switch consistent with other bitfields in the driver.

Several cleanup patches have been applied to this driver recently so
this will need a manual backport.

Fixes: da35a7b526d9 ("iio: frequency: admv1013: add support for ADMV1013")
Reviewed-by: Nuno Sá 
Signed-off-by: Antoniu Miclaus 
Reviewed-by: Andy Shevchenko 
Cc: 
Signed-off-by: Jonathan Cameron

iio: frequency: admv4420: return proper error code from admv4420_calc_parameters()

2026-03-03T21:18:24+00:00

Return -EINVAL instead of -1 when no valid PLL parameters solution is
found. Using standard kernel error codes ensures consistency and proper
error propagation through the call chain.

Signed-off-by: Antoniu Miclaus 
Signed-off-by: Jonathan Cameron

iio: frequency: ad9523: use octal permissions

2026-02-28T12:15:19+00:00

The driver currently defines device attributes using symbolic permission
flags (S_IRUGO and S_IWUSR). Update these to use octal permissions (0444
and 0200) to resolve checkpatch warnings.

Signed-off-by: Bhargav Joshi 
Reviewed-by: Andy Shevchenko 
Signed-off-by: Jonathan Cameron

iio: frequency: ad9523: fix multi-line dereferences

2026-02-28T12:15:19+00:00

Platform data pointer dereferences for pll1_charge_pump_current_nA and
pll2_charge_pump_current_nA were split across multiple lines. Bring the
dereference chains onto a single line.

This resolves the following checkpatch.pl warnings:
WARNING: Avoid multiple line dereference - prefer 'pdata->pll1_charge_pump_current_nA'
WARNING: Avoid multiple line dereference - prefer 'pdata->pll2_charge_pump_current_nA'

Signed-off-by: Bhargav Joshi 
Reviewed-by: Andy Shevchenko 
Signed-off-by: Jonathan Cameron