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authorKuninori Morimoto <kuninori.morimoto.gx@renesas.com>2020-01-20 10:05:03 +0900
committerMark Brown <broonie@kernel.org>2020-01-21 17:06:41 +0000
commit450312b640f9c6caeeaf4bd8d4130f86ea27f456 (patch)
tree4c745851bd83277a150d728532baa103a705e212 /include/sound
parent0b1c89944207975dac17a176052b92780642b90b (diff)
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 'include/sound')
-rw-r--r--include/sound/soc-dai.h2
1 files changed, 0 insertions, 2 deletions
diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h
index 939c73db6a03..2ccecf3e03d5 100644
--- a/include/sound/soc-dai.h
+++ b/include/sound/soc-dai.h
@@ -286,8 +286,6 @@ struct snd_soc_dai_driver {
/* DAI driver callbacks */
int (*probe)(struct snd_soc_dai *dai);
int (*remove)(struct snd_soc_dai *dai);
- int (*suspend)(struct snd_soc_dai *dai);
- int (*resume)(struct snd_soc_dai *dai);
/* compress dai */
int (*compress_new)(struct snd_soc_pcm_runtime *rtd, int num);
/* Optional Callback used at pcm creation*/