[PATCH V4 9/9] ASoC: amd: ps: add acp_reset flag check in acp pci driver pm ops.

From: Vijendar Mukunda
Date: Mon Jun 12 2023 - 06:16:26 EST


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@xxxxxxx>
---
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