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Michael Hennerich 06d81ce319 iio: frequency: adf4350: Fix prescaler usage. ... commit 33d7ecbf69 upstream. The ADF4350/1 features a programmable dual-modulus prescaler of 4/5 or 8/9. When set to 4/5, the maximum RF frequency allowed is 3 GHz. Therefore, when operating the ADF4351 above 3 GHz, this must be set to 8/9. In this context not the RF output frequency is meant - it's the VCO frequency. Therefore move the prescaler selection after we derived the VCO frequency from the desired RF output frequency. This BUG may have caused PLL lock instabilities when operating the VCO at the very high range close to 4.4 GHz. Fixes: e31166f0fd ("iio: frequency: New driver for Analog Devices ADF4350/ADF4351 Wideband Synthesizers") Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Nuno Sá <nuno.sa@analog.com> Reviewed-by: Andy Shevchenko <andy@kernel.org> Link: https://patch.msgid.link/20250829-adf4350-fix-v2-1-0bf543ba797d@analog.com Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		History 2025-10-19 16:21:45 +02:00
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ad9523.c	iio: frequency: ad9523: convert rest of driver to device managed functions	2020-08-22 10:53:14 +01:00
adf4350.c	iio: frequency: adf4350: Fix prescaler usage.	2025-10-19 16:21:45 +02:00
adf4371.c	iio: remove explicit IIO device parent assignment	2020-06-14 11:49:59 +01:00
Kconfig	Second set of IIO device support, features, cleanups and minor fixes for 5.3.	2019-07-01 10:58:13 +02:00
Makefile	Second set of IIO device support, features, cleanups and minor fixes for 5.3.	2019-07-01 10:58:13 +02:00