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From:   Vijendar Mukunda <Vijendar.Mukunda@amd.com>
To:     <broonie@kernel.org>
CC:     <alsa-devel@alsa-project.org>,
        <pierre-louis.bossart@linux.intel.com>,
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        <Mastan.Katragadda@amd.com>, <Arungopal.kondaveeti@amd.com>,
        <mario.limonciello@amd.com>,
        Vijendar Mukunda <Vijendar.Mukunda@amd.com>,
        Liam Girdwood <lgirdwood@gmail.com>,
        Jaroslav Kysela <perex@perex.cz>,
        Takashi Iwai <tiwai@suse.com>,
        Syed Saba Kareem <Syed.SabaKareem@amd.com>,
        open list <linux-kernel@vger.kernel.org>
Subject: [PATCH V2 9/9] ASoC: amd: ps: Add SoundWire specific checks in pci driver in pm ops.
Date:   Mon, 22 May 2023 19:01:22 +0530
Message-ID: <20230522133122.166841-10-Vijendar.Mukunda@amd.com>
In-Reply-To: <20230522133122.166841-1-Vijendar.Mukunda@amd.com>
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AMD SoundWire manager supports different power modes.
In case of SoundWire Power off Mode, ACP pci parent driver
should invoke acp de-init and init sequence during suspend/resume
callbacks.

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
---
 sound/soc/amd/ps/pci-ps.c | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/sound/soc/amd/ps/pci-ps.c b/sound/soc/amd/ps/pci-ps.c
index c99ac5d90097..f6d14baf2c2e 100644
--- a/sound/soc/amd/ps/pci-ps.c
+++ b/sound/soc/amd/ps/pci-ps.c
@@ -659,10 +659,15 @@ static int snd_acp63_probe(struct pci_dev *pci,
 static int __maybe_unused snd_acp63_suspend(struct device *dev)
 {
 	struct acp63_dev_data *adata;
-	int ret;
+	int ret = 0;
 
 	adata = dev_get_drvdata(dev);
-	ret = acp63_deinit(adata->acp63_base, dev);
+	if (adata->pdev_mask & ACP63_SDW_DEV_MASK) {
+		if (adata->acp_reset)
+			ret = acp63_deinit(adata->acp63_base, dev);
+	} else {
+		ret = acp63_deinit(adata->acp63_base, dev);
+	}
 	if (ret)
 		dev_err(dev, "ACP de-init failed\n");
 	return ret;
@@ -671,10 +676,15 @@ static int __maybe_unused snd_acp63_suspend(struct device *dev)
 static int __maybe_unused snd_acp63_resume(struct device *dev)
 {
 	struct acp63_dev_data *adata;
-	int ret;
+	int ret = 0;
 
 	adata = dev_get_drvdata(dev);
-	ret = acp63_init(adata->acp63_base, dev);
+	if (adata->pdev_mask & ACP63_SDW_DEV_MASK) {
+		if (adata->acp_reset)
+			ret = acp63_init(adata->acp63_base, dev);
+	} else {
+		ret = acp63_init(adata->acp63_base, dev);
+	}
 	if (ret)
 		dev_err(dev, "ACP init failed\n");
 	return ret;
-- 
2.34.1