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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 /sound
parent0b1c89944207975dac17a176052b92780642b90b (diff)
downloadlinux-450312b640f9c6caeeaf4bd8d4130f86ea27f456.tar.bz2
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')
-rw-r--r--sound/soc/soc-core.c41
-rw-r--r--sound/soc/soc-dai.c12
2 files changed, 0 insertions, 53 deletions
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index acf6f141fd2d..b0ec3233125a 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -558,16 +558,6 @@ int snd_soc_suspend(struct device *dev)
if (card->suspend_pre)
card->suspend_pre(card);
- for_each_card_rtds(card, rtd) {
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
-
- if (rtd->dai_link->ignore_suspend)
- continue;
-
- if (!cpu_dai->driver->bus_control)
- snd_soc_dai_suspend(cpu_dai);
- }
-
/* close any waiting streams */
snd_soc_flush_all_delayed_work(card);
@@ -639,16 +629,6 @@ int snd_soc_suspend(struct device *dev)
}
}
- for_each_card_rtds(card, rtd) {
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
-
- if (rtd->dai_link->ignore_suspend)
- continue;
-
- if (cpu_dai->driver->bus_control)
- snd_soc_dai_suspend(cpu_dai);
- }
-
if (card->suspend_post)
card->suspend_post(card);
@@ -682,17 +662,6 @@ static void soc_resume_deferred(struct work_struct *work)
if (card->resume_pre)
card->resume_pre(card);
- /* resume control bus DAIs */
- for_each_card_rtds(card, rtd) {
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
-
- if (rtd->dai_link->ignore_suspend)
- continue;
-
- if (cpu_dai->driver->bus_control)
- snd_soc_dai_resume(cpu_dai);
- }
-
for_each_card_components(card, component) {
if (snd_soc_component_is_suspended(component))
snd_soc_component_resume(component);
@@ -726,16 +695,6 @@ static void soc_resume_deferred(struct work_struct *work)
}
}
- for_each_card_rtds(card, rtd) {
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
-
- if (rtd->dai_link->ignore_suspend)
- continue;
-
- if (!cpu_dai->driver->bus_control)
- snd_soc_dai_resume(cpu_dai);
- }
-
if (card->resume_post)
card->resume_post(card);
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)