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ASoC: doc: ReSTize pops_clicks.txt 

A simple conversion from a plain text file.
The file name was changed from "pops_clicks" to "pops-clicks" to align
with others.

Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2016-11-10 22:23:58 +01:00
parent d9641c9d63
commit c9746eeafc
2 changed files with 10 additions and 6 deletions
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1
Documentation/sound/soc/index.rst
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@ -13,3 +13,4 @@ The documentation is spilt into the following sections:-
dapm dapm
platform platform
machine machine
pops-clicks

15
Documentation/sound/alsa/soc/pops_clicks.txt → Documentation/sound/soc/pops-clicks.rst
View File

@ -1,3 +1,4 @@
=====================
Audio Pops and Clicks Audio Pops and Clicks
===================== =====================
@ -20,10 +21,11 @@ currently, however future audio codec hardware will have better pop and click
suppression. Pops can be reduced within playback by powering the audio suppression. Pops can be reduced within playback by powering the audio
components in a specific order. This order is different for startup and components in a specific order. This order is different for startup and
shutdown and follows some basic rules:- shutdown and follows some basic rules:-
::
Startup Order :- DAC --> Mixers --> Output PGA --> Digital Unmute Startup Order :- DAC --> Mixers --> Output PGA --> Digital Unmute
Shutdown Order :- Digital Mute --> Output PGA --> Mixers --> DAC Shutdown Order :- Digital Mute --> Output PGA --> Mixers --> DAC
This assumes that the codec PCM output path from the DAC is via a mixer and then This assumes that the codec PCM output path from the DAC is via a mixer and then
a PGA (programmable gain amplifier) before being output to the speakers. a PGA (programmable gain amplifier) before being output to the speakers.
@ -36,10 +38,11 @@ Capture artifacts are somewhat easier to get rid as we can delay activating the
ADC until all the pops have occurred. This follows similar power rules to ADC until all the pops have occurred. This follows similar power rules to
playback in that components are powered in a sequence depending upon stream playback in that components are powered in a sequence depending upon stream
startup or shutdown. startup or shutdown.
::
Startup Order - Input PGA --> Mixers --> ADC Startup Order - Input PGA --> Mixers --> ADC
Shutdown Order - ADC --> Mixers --> Input PGA Shutdown Order - ADC --> Mixers --> Input PGA
Zipper Noise Zipper Noise