Revision 8e37395c3a5dceff62a5010ebbbc107f4145935c authored by Linus Torvalds on 20 October 2021, 16:13:22 UTC, committed by Linus Torvalds on 20 October 2021, 16:13:22 UTC
Pull sound fixes from Takashi Iwai: "Again it became bigger than wished, unfortunately, as this contains quite a few ASoC fixes that came up a bit late. It also includes yet more HD- and USB-audio quirks: I decided to merge them now, as those are for stable, and we'll need them sooner or later. Although the volumes are a bit high, all changes are device-specific (and reasonably small) fixes, so it should be safe for the late rc" * tag 'sound-5.15-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: usb-audio: Fix microphone sound on Jieli webcam. ALSA: hda/realtek: Fixes HP Spectre x360 15-eb1xxx speakers ALSA: usb-audio: Provide quirk for Sennheiser GSP670 Headset ALSA: hda/realtek: Add quirk for Clevo PC50HS ALSA: usb-audio: add Schiit Hel device to quirk table ASoC: wm8960: Fix clock configuration on slave mode ASoC: cs42l42: Ensure 0dB full scale volume is used for headsets ASoC: soc-core: fix null-ptr-deref in snd_soc_del_component_unlocked() ASoC: codec: wcd938x: Add irq config support ASoC: DAPM: Fix missing kctl change notifications ASoC: Intel: bytcht_es8316: Utilize dev_err_probe() to avoid log saturation ASoC: Intel: bytcht_es8316: Switch to use gpiod_get_optional() ASoC: Intel: bytcht_es8316: Use temporary variable for struct device ASoC: Intel: bytcht_es8316: Get platform data via dev_get_platdata() ASoC: wcd938x: Fix jack detection issue ASoC: nau8824: Fix headphone vs headset, button-press detection no longer working ASoC: cs4341: Add SPI device ID table ASoC: pcm179x: Add missing entries SPI to device ID table ASoC: fsl_xcvr: Fix channel swap issue with ARC ASoC: pcm512x: Mend accesses to the I2S_1 and I2S_2 registers
max31790.rst
Kernel driver max31790
======================
Supported chips:
* Maxim MAX31790
Prefix: 'max31790'
Addresses scanned: -
Datasheet: https://pdfserv.maximintegrated.com/en/ds/MAX31790.pdf
Author: Il Han <corone.il.han@gmail.com>
Description
-----------
This driver implements support for the Maxim MAX31790 chip.
The MAX31790 controls the speeds of up to six fans using six independent
PWM outputs. The desired fan speeds (or PWM duty cycles) are written
through the I2C interface. The outputs drive "4-wire" fans directly,
or can be used to modulate the fan's power terminals using an external
pass transistor.
Tachometer inputs monitor fan tachometer logic outputs for precise (+/-1%)
monitoring and control of fan RPM as well as detection of fan failure.
Six pins are dedicated tachometer inputs. Any of the six PWM outputs can
also be configured to serve as tachometer inputs.
Sysfs entries
-------------
================== === =======================================================
fan[1-12]_input RO fan tachometer speed in RPM
fan[1-12]_fault RO fan experienced fault
fan[1-6]_target RW desired fan speed in RPM
pwm[1-6]_enable RW regulator mode, 0=disabled (duty cycle=0%), 1=manual mode, 2=rpm mode
pwm[1-6] RW read: current pwm duty cycle,
write: target pwm duty cycle (0-255)
================== === =======================================================
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