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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>,
        <Basavaraj.Hiregoudar@amd.com>, <Sunil-kumar.Dommati@amd.com>,
        <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 V4 9/9] ASoC: amd: ps: add acp_reset flag check in acp pci driver pm ops.
Date:   Mon, 12 Jun 2023 15:29:03 +0530
Message-ID: <20230612095903.2113464-10-Vijendar.Mukunda@amd.com>
In-Reply-To: <20230612095903.2113464-1-Vijendar.Mukunda@amd.com>
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AMD SoundWire manager supports different power modes.
acp_reset flag will be set to false only when SoundWire manager power
mode is selected as ClockStop Mode. For rest of the combinations
(ACP PDM + SDW), acp_reset flag will be set to true.
When acp_reset flag is set, acp de-init and acp init sequence should
be invoked during suspend/resume callbacks.

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
---
 sound/soc/amd/ps/pci-ps.c | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/sound/soc/amd/ps/pci-ps.c b/sound/soc/amd/ps/pci-ps.c
index ff734a90951b..5b46dc8573f8 100644
--- a/sound/soc/amd/ps/pci-ps.c
+++ b/sound/soc/amd/ps/pci-ps.c
@@ -669,24 +669,28 @@ 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 (ret)
-		dev_err(dev, "ACP de-init failed\n");
+	if (adata->acp_reset) {
+		ret = acp63_deinit(adata->acp63_base, dev);
+		if (ret)
+			dev_err(dev, "ACP de-init failed\n");
+	}
 	return ret;
 }
 
 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 (ret)
-		dev_err(dev, "ACP init failed\n");
+	if (adata->acp_reset) {
+		ret = acp63_init(adata->acp63_base, dev);
+		if (ret)
+			dev_err(dev, "ACP init failed\n");
+	}
 	return ret;
 }
 
-- 
2.34.1