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| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2020-01-20 04:05:03 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-01-21 20:06:41 +0300 |
| commit | 450312b640f9c6caeeaf4bd8d4130f86ea27f456 (patch) | |
| tree | 4c745851bd83277a150d728532baa103a705e212 /sound/soc/soc-dai.c | |
| parent | 0b1c89944207975dac17a176052b92780642b90b (diff) | |
| download | linux-450312b640f9c6caeeaf4bd8d4130f86ea27f456.tar.xz | |
ASoC: soc-core: remove DAI suspend/resume
Historically, CPU and Codec were implemented different, but now it is
merged as Component.
ALSA SoC is supporting suspend/resume at DAI and Component level.
The method is like below.
1) Suspend/Resume all CPU DAI if bus-control was 0
2) Suspend/Resume all Component
3) Suspend/Resume all CPU DAI if bus-control was 1
Historically 2) was Codec special operation.
Because CPU and Codec were merged into Component,
CPU suspend/resume has 3 chance to suspend(= 1/2/3), but
Codec suspend/resume has 1 chance (= 2).
Here, DAI side suspend/resume is caring bus-control, but no driver
which is supporting suspend/resume is setting bus-control.
This means 3) was never used.
Here, used parameter for suspend/resume component->dev and dai->dev are
same pointer.
For that reason, we can merge DAI and Component suspend/resume.
One note is that we should use 2), because it is caring BIAS level.
This patch removes 1) and 3).
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87r1zvx7i8.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/soc-dai.c')
| -rw-r--r-- | sound/soc/soc-dai.c | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/sound/soc/soc-dai.c b/sound/soc/soc-dai.c index 1c7f63871c1d..51031e330179 100644 --- a/sound/soc/soc-dai.c +++ b/sound/soc/soc-dai.c @@ -354,18 +354,6 @@ snd_pcm_sframes_t snd_soc_dai_delay(struct snd_soc_dai *dai, return delay; } -void snd_soc_dai_suspend(struct snd_soc_dai *dai) -{ - if (dai->driver->suspend) - dai->driver->suspend(dai); -} - -void snd_soc_dai_resume(struct snd_soc_dai *dai) -{ - if (dai->driver->resume) - dai->driver->resume(dai); -} - int snd_soc_dai_probe(struct snd_soc_dai *dai) { if (dai->driver->probe) |