Fix: ASoC add component to set_bias_level events in linux 6.9-rc1
See upstream commit:
commit
6ef46a69ec32fe1cf56de67742fcd01af4bf48af
Author: Luca Ceresoli <luca.ceresoli@bootlin.com>
Date: Wed Mar 6 10:30:00 2024 +0100
ASoC: trace: add component to set_bias_level trace events
The snd_soc_bias_level_start and snd_soc_bias_level_done trace events
currently look like:
aplay-229 [000] 1250.140778: snd_soc_bias_level_start: card=vscn-2046 val=1
aplay-229 [000] 1250.140784: snd_soc_bias_level_done: card=vscn-2046 val=1
aplay-229 [000] 1250.140786: snd_soc_bias_level_start: card=vscn-2046 val=2
aplay-229 [000] 1250.140788: snd_soc_bias_level_done: card=vscn-2046 val=2
kworker/u8:1-21 [000] 1250.140871: snd_soc_bias_level_start: card=vscn-2046 val=1
kworker/u8:0-11 [000] 1250.140951: snd_soc_bias_level_start: card=vscn-2046 val=1
kworker/u8:0-11 [000] 1250.140956: snd_soc_bias_level_done: card=vscn-2046 val=1
kworker/u8:0-11 [000] 1250.140959: snd_soc_bias_level_start: card=vscn-2046 val=2
kworker/u8:0-11 [000] 1250.140961: snd_soc_bias_level_done: card=vscn-2046 val=2
kworker/u8:1-21 [000] 1250.167219: snd_soc_bias_level_done: card=vscn-2046 val=1
kworker/u8:1-21 [000] 1250.167222: snd_soc_bias_level_start: card=vscn-2046 val=2
kworker/u8:1-21 [000] 1250.167232: snd_soc_bias_level_done: card=vscn-2046 val=2
kworker/u8:0-11 [000] 1250.167440: snd_soc_bias_level_start: card=vscn-2046 val=3
kworker/u8:0-11 [000] 1250.167444: snd_soc_bias_level_done: card=vscn-2046 val=3
kworker/u8:1-21 [000] 1250.167497: snd_soc_bias_level_start: card=vscn-2046 val=3
kworker/u8:1-21 [000] 1250.167506: snd_soc_bias_level_done: card=vscn-2046 val=3
There are clearly multiple calls, one per component, but they cannot be
discriminated from each other.
Change the ftrace events to also print the component name, to make it clear
which part of the code is involved. This requires changing the passed value
from a struct snd_soc_card, where the DAPM context is not kwown, to a
struct snd_soc_dapm_context where it is obviously known but the a card
pointer is also available.
With this change, the resulting trace becomes:
aplay-247 [000] 1436.357332: snd_soc_bias_level_start: card=vscn-2046 component=(none) val=1
aplay-247 [000] 1436.357338: snd_soc_bias_level_done: card=vscn-2046 component=(none) val=1
aplay-247 [000] 1436.357340: snd_soc_bias_level_start: card=vscn-2046 component=(none) val=2
aplay-247 [000] 1436.357343: snd_soc_bias_level_done: card=vscn-2046 component=(none) val=2
kworker/u8:4-215 [000] 1436.357437: snd_soc_bias_level_start: card=vscn-2046 component=
ff560000.codec val=1
kworker/u8:5-231 [000] 1436.357518: snd_soc_bias_level_start: card=vscn-2046 component=
ff320000.i2s val=1
kworker/u8:5-231 [000] 1436.357523: snd_soc_bias_level_done: card=vscn-2046 component=
ff320000.i2s val=1
kworker/u8:5-231 [000] 1436.357526: snd_soc_bias_level_start: card=vscn-2046 component=
ff320000.i2s val=2
kworker/u8:5-231 [000] 1436.357528: snd_soc_bias_level_done: card=vscn-2046 component=
ff320000.i2s val=2
kworker/u8:4-215 [000] 1436.383217: snd_soc_bias_level_done: card=vscn-2046 component=
ff560000.codec val=1
kworker/u8:4-215 [000] 1436.383221: snd_soc_bias_level_start: card=vscn-2046 component=
ff560000.codec val=2
kworker/u8:4-215 [000] 1436.383231: snd_soc_bias_level_done: card=vscn-2046 component=
ff560000.codec val=2
kworker/u8:5-231 [000] 1436.383468: snd_soc_bias_level_start: card=vscn-2046 component=
ff320000.i2s val=3
kworker/u8:5-231 [000] 1436.383472: snd_soc_bias_level_done: card=vscn-2046 component=
ff320000.i2s val=3
kworker/u8:4-215 [000] 1436.383503: snd_soc_bias_level_start: card=vscn-2046 component=
ff560000.codec val=3
kworker/u8:4-215 [000] 1436.383513: snd_soc_bias_level_done: card=vscn-2046 component=
ff560000.codec val=3
Change-Id: I959f1680c002acdf29828b968d3975247f5433d8
Signed-off-by: Kienan Stewart <kstewart@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>