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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
| commit | 76cb841cb886eef6b3bee341a2266c76578724ad (patch) | |
| tree | f5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /Documentation/ABI/testing/sysfs-bus-iio-frequency-adf4350 | |
| parent | Initial commit. (diff) | |
| download | linux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip | |
Adding upstream version 4.19.249.upstream/4.19.249
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/ABI/testing/sysfs-bus-iio-frequency-adf4350')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-iio-frequency-adf4350 | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-frequency-adf4350 b/Documentation/ABI/testing/sysfs-bus-iio-frequency-adf4350 new file mode 100644 index 000000000..1254457a7 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-iio-frequency-adf4350 @@ -0,0 +1,21 @@ +What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency_resolution +KernelVersion: 3.4.0 +Contact: linux-iio@vger.kernel.org +Description: + Stores channel Y frequency resolution/channel spacing in Hz. + The value given directly influences the MODULUS used by + the fractional-N PLL. It is assumed that the algorithm + that is used to compute the various dividers, is able to + generate proper values for multiples of channel spacing. + +What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_refin_frequency +KernelVersion: 3.4.0 +Contact: linux-iio@vger.kernel.org +Description: + Sets channel Y REFin frequency in Hz. In some clock chained + applications, the reference frequency used by the PLL may + change during runtime. This attribute allows the user to + adjust the reference frequency accordingly. + The value written has no effect until out_altvoltageY_frequency + is updated. Consider to use out_altvoltageY_powerdown to power + down the PLL and its RFOut buffers during REFin changes. |