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ASoC: amd: ps: add ZSC control register programming sequence

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Add ZSC Control register programming sequence for ACP D0 and D3 state
transitions for ACP6.3 platform. This will allow ACP to enter low power
state when ACP enters D3 state. When ACP enters D0 State, ZSC control
should be disabled.

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://patch.msgid.link/20241203081940.3390281-2-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Vijendar Mukunda 2024-12-03 13:49:40 +05:30 committed by Mark Brown
parent bcbf421d21
commit 25cd677636
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 11 additions and 4 deletions
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15
sound/soc/amd/ps/pci-ps.c
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@ -83,6 +83,7 @@ static int acp63_init(void __iomem *acp_base, struct device *dev)
return ret;
}
acp63_enable_interrupts(acp_base);
writel(0, acp_base + ACP_ZSC_DSP_CTRL);
return 0;
}
@ -97,6 +98,7 @@ static int acp63_deinit(void __iomem *acp_base, struct device *dev)
return ret;
}
writel(0, acp_base + ACP_CONTROL);
writel(1, acp_base + ACP_ZSC_DSP_CTRL);
return 0;
}
@ -655,8 +657,10 @@ static int __maybe_unused snd_acp63_suspend(struct device *dev)
adata = dev_get_drvdata(dev);
if (adata->is_sdw_dev) {
adata->sdw_en_stat = check_acp_sdw_enable_status(adata);
if (adata->sdw_en_stat)
if (adata->sdw_en_stat) {
writel(1, adata->acp63_base + ACP_ZSC_DSP_CTRL);
return 0;
}
}
ret = acp63_deinit(adata->acp63_base, dev);
if (ret)
@ -671,9 +675,10 @@ static int __maybe_unused snd_acp63_runtime_resume(struct device *dev)
int ret;
adata = dev_get_drvdata(dev);
if (adata->sdw_en_stat)
if (adata->sdw_en_stat) {
writel(0, adata->acp63_base + ACP_ZSC_DSP_CTRL);
return 0;
}
ret = acp63_init(adata->acp63_base, dev);
if (ret) {
dev_err(dev, "ACP init failed\n");
@ -691,8 +696,10 @@ static int __maybe_unused snd_acp63_resume(struct device *dev)
int ret;
adata = dev_get_drvdata(dev);
if (adata->sdw_en_stat)
if (adata->sdw_en_stat) {
writel(0, adata->acp63_base + ACP_ZSC_DSP_CTRL);
return 0;
}
ret = acp63_init(adata->acp63_base, dev);
if (ret)