From 7307d33a280b300f69c00580be9fa210f8587039 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Mon, 20 Jan 2020 10:03:43 +0900
Subject: [PATCH] ASoC: bcm: cygnus-ssp: move .suspend/.resume to component
Git-commit: 7307d33a280b300f69c00580be9fa210f8587039
Patch-mainline: v5.6-rc1
References: jsc#SLE-16518

There is no big difference at implementation for .suspend/.resume
between DAI driver and Component driver.
But because some driver is using DAI version, thus ALSA SoC needs
to keep supporting it, hence, framework becoming verbose.
If we can switch all DAI driver .suspend/.resume to Component driver,
we can remove verbose code from ALSA SoC.

Driver is getting its private data via dai->dev.
But dai->dev and component->dev are same dev, thus, we can convert
these. For same reason, we can convert dai->active to
component->active if necessary.

This patch moves DAI driver .suspend/.resume to Component driver

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87blqzym4w.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 sound/soc/bcm/cygnus-ssp.c | 39 +++++++++++++++++++++++++++++++++------
 1 file changed, 33 insertions(+), 6 deletions(-)

diff --git a/sound/soc/bcm/cygnus-ssp.c b/sound/soc/bcm/cygnus-ssp.c
index 2f9357d7da96..257f5048061e 100644
--- a/sound/soc/bcm/cygnus-ssp.c
+++ b/sound/soc/bcm/cygnus-ssp.c
@@ -1052,10 +1052,13 @@ static int cygnus_set_dai_tdm_slot(struct snd_soc_dai *cpu_dai,
 }
 
 #ifdef CONFIG_PM_SLEEP
-static int cygnus_ssp_suspend(struct snd_soc_dai *cpu_dai)
+static int __cygnus_ssp_suspend(struct snd_soc_dai *cpu_dai)
 {
 	struct cygnus_aio_port *aio = cygnus_dai_get_portinfo(cpu_dai);
 
+	if (!cpu_dai->active)
+		return 0;
+
 	if (!aio->is_slave) {
 		u32 val;
 
@@ -1078,11 +1081,25 @@ static int cygnus_ssp_suspend(struct snd_soc_dai *cpu_dai)
 	return 0;
 }
 
-static int cygnus_ssp_resume(struct snd_soc_dai *cpu_dai)
+static int cygnus_ssp_suspend(struct snd_soc_component *component)
+{
+	struct snd_soc_dai *dai;
+	int ret = 0;
+
+	for_each_component_dais(component, dai)
+		ret |= __cygnus_ssp_suspend(dai);
+
+	return ret;
+}
+
+static int __cygnus_ssp_resume(struct snd_soc_dai *cpu_dai)
 {
 	struct cygnus_aio_port *aio = cygnus_dai_get_portinfo(cpu_dai);
 	int error;
 
+	if (!cpu_dai->active)
+		return 0;
+
 	if (!aio->is_slave) {
 		if (aio->clk_trace.cap_clk_en) {
 			error = clk_prepare_enable(aio->cygaud->
@@ -1109,6 +1126,18 @@ static int cygnus_ssp_resume(struct snd_soc_dai *cpu_dai)
 
 	return 0;
 }
+
+static int cygnus_ssp_resume(struct snd_soc_component *component)
+{
+	struct snd_soc_dai *dai;
+	int ret = 0;
+
+	for_each_component_dais(component, dai)
+		ret |= __cygnus_ssp_resume(dai);
+
+	return ret;
+}
+
 #else
 #define cygnus_ssp_suspend NULL
 #define cygnus_ssp_resume  NULL
@@ -1149,8 +1178,6 @@ static const struct snd_soc_dai_ops cygnus_spdif_dai_ops = {
 				SNDRV_PCM_FMTBIT_S32_LE, \
 	}, \
 	.ops = &cygnus_ssp_dai_ops, \
-	.suspend = cygnus_ssp_suspend, \
-	.resume = cygnus_ssp_resume, \
 }
 
 static const struct snd_soc_dai_driver cygnus_ssp_dai_info[] = {
@@ -1169,14 +1196,14 @@ static const struct snd_soc_dai_driver cygnus_spdif_dai_info = {
 			SNDRV_PCM_FMTBIT_S32_LE,
 	},
 	.ops = &cygnus_spdif_dai_ops,
-	.suspend = cygnus_ssp_suspend,
-	.resume = cygnus_ssp_resume,
 };
 
 static struct snd_soc_dai_driver cygnus_ssp_dai[CYGNUS_MAX_PORTS];
 
 static const struct snd_soc_component_driver cygnus_ssp_component = {
 	.name		= "cygnus-audio",
+	.suspend	= cygnus_ssp_suspend,
+	.resume		= cygnus_ssp_resume,
 };
 
 /*
-- 
2.16.4