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| author |   Thomas Gleixner <tglx@linutronix.de> | 2019-07-28 22:22:40 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2019-07-28 22:22:40 +0200 |
| commit | 7a30bdd99f37352b188575b27924c407c6ddff9e (patch) | |
| tree | 10ea40ab1b5211e75c33eaddb3a6b393ad6ee7ad /Documentation/ABI/testing/sysfs-bus-iio-frequency-adf4371 | |
| parent | x86/speculation/swapgs: Exclude ATOMs from speculation through SWAPGS (diff) | |
| parent | Linux 5.3-rc2 (diff) | |
| download | linux-dev-7a30bdd99f37352b188575b27924c407c6ddff9e.tar.xz linux-dev-7a30bdd99f37352b188575b27924c407c6ddff9e.zip | |
Merge branch master from git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Pick up the spectre documentation so the Grand Schemozzle can be added.
Diffstat (limited to 'Documentation/ABI/testing/sysfs-bus-iio-frequency-adf4371')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-iio-frequency-adf4371 | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-frequency-adf4371 b/Documentation/ABI/testing/sysfs-bus-iio-frequency-adf4371 new file mode 100644 index 000000000000..302de64cb424 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-iio-frequency-adf4371 @@ -0,0 +1,44 @@ +What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency +KernelVersion: +Contact: linux-iio@vger.kernel.org +Description: + Stores the PLL frequency in Hz for channel Y. + Reading returns the actual frequency in Hz. + The ADF4371 has an integrated VCO with fundamendal output + frequency ranging from 4000000000 Hz 8000000000 Hz. + + out_altvoltage0_frequency: + A divide by 1, 2, 4, 8, 16, 32 or circuit generates + frequencies from 62500000 Hz to 8000000000 Hz. + out_altvoltage1_frequency: + This channel duplicates the channel 0 frequency + out_altvoltage2_frequency: + A frequency doubler generates frequencies from + 8000000000 Hz to 16000000000 Hz. + out_altvoltage3_frequency: + A frequency quadrupler generates frequencies from + 16000000000 Hz to 32000000000 Hz. + + Note: writes to one of the channels will affect the frequency of + all the other channels, since it involves changing the VCO + fundamental output frequency. + +What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_name +KernelVersion: +Contact: linux-iio@vger.kernel.org +Description: + Reading returns the datasheet name for channel Y: + + out_altvoltage0_name: RF8x + out_altvoltage1_name: RFAUX8x + out_altvoltage2_name: RF16x + out_altvoltage3_name: RF32x + +What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown +KernelVersion: +Contact: linux-iio@vger.kernel.org +Description: + This attribute allows the user to power down the PLL and it's + RFOut buffers. + Writing 1 causes the specified channel to power down. + Clearing returns to normal operation. |