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ASoC: amd: acp7x: add system and runtime PM ops

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Add ACP7.x PM callbacks and hook up system sleep and runtime PM ops for
the PCI driver.

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Link: https://patch.msgid.link/20260507181251.20594-6-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Vijendar Mukunda 2026-05-07 23:41:33 +05:30 committed by Mark Brown
parent 533308171b
commit 07d56a83ba
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GPG Key ID: 24D68B725D5487D0
3 changed files with 77 additions and 0 deletions
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43
sound/soc/amd/acp7x/acp7x-common.c
View File

@ -75,8 +75,51 @@ static int acp7x_deinit(void __iomem *acp_base, struct device *dev)
return 0;
}
static int __maybe_unused snd_acp7x_suspend(struct device *dev)
{
struct acp7x_dev_data *adata;
int ret;
adata = dev_get_drvdata(dev);
ret = acp_hw_deinit(adata, dev);
if (ret)
dev_err(dev, "ACP de-init failed\n");
return ret;
}
static int __maybe_unused snd_acp7x_runtime_resume(struct device *dev)
{
struct acp7x_dev_data *adata;
int ret;
adata = dev_get_drvdata(dev);
ret = acp_hw_init(adata, dev);
if (ret) {
dev_err(dev, "ACP init failed\n");
return ret;
}
return 0;
}
static int __maybe_unused snd_acp7x_resume(struct device *dev)
{
struct acp7x_dev_data *adata;
int ret;
adata = dev_get_drvdata(dev);
ret = acp_hw_init(adata, dev);
if (ret)
dev_err(dev, "ACP init failed\n");
return ret;
}
void acp7x_hw_init_ops(struct acp_hw_ops *hw_ops)
{
hw_ops->acp_init = acp7x_init;
hw_ops->acp_deinit = acp7x_deinit;
hw_ops->acp_suspend = snd_acp7x_suspend;
hw_ops->acp_resume = snd_acp7x_resume;
hw_ops->acp_suspend_runtime = snd_acp7x_suspend;
hw_ops->acp_resume_runtime = snd_acp7x_runtime_resume;
}

3
sound/soc/amd/acp7x/acp7x.h
View File

@ -33,6 +33,9 @@
#define ACP7X_PGFSM_CNTL_POWER_ON_MASK 7
#define ACP7X_PGFSM_STATUS_MASK 0x3F
/* time in ms for runtime suspend delay */
#define ACP_SUSPEND_DELAY_MS 2000
struct acp_hw_ops {
int (*acp_init)(void __iomem *acp_base, struct device *dev);
int (*acp_deinit)(void __iomem *acp_base, struct device *dev);

31
sound/soc/amd/acp7x/pci-acp7x.c
View File

@ -11,6 +11,7 @@
#include <linux/io.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/pm_runtime.h>
#include <linux/slab.h>
#include <linux/types.h>
@ -92,6 +93,11 @@ static int snd_acp7x_probe(struct pci_dev *pci,
ret = acp_hw_init(adata, &pci->dev);
if (ret)
goto release_regions;
pm_runtime_set_autosuspend_delay(&pci->dev, ACP_SUSPEND_DELAY_MS);
pm_runtime_use_autosuspend(&pci->dev);
pm_runtime_put_noidle(&pci->dev);
pm_runtime_allow(&pci->dev);
return 0;
release_regions:
@ -102,6 +108,26 @@ static int snd_acp7x_probe(struct pci_dev *pci,
return ret;
}
static int __maybe_unused snd_acp_suspend(struct device *dev)
{
return acp_hw_suspend(dev);
}
static int __maybe_unused snd_acp_runtime_resume(struct device *dev)
{
return acp_hw_runtime_resume(dev);
}
static int __maybe_unused snd_acp_resume(struct device *dev)
{
return acp_hw_resume(dev);
}
static const struct dev_pm_ops acp7x_pm_ops = {
SET_RUNTIME_PM_OPS(snd_acp_suspend, snd_acp_runtime_resume, NULL)
SET_SYSTEM_SLEEP_PM_OPS(snd_acp_suspend, snd_acp_resume)
};
static void snd_acp7x_remove(struct pci_dev *pci)
{
struct acp7x_dev_data *adata;
@ -111,6 +137,8 @@ static void snd_acp7x_remove(struct pci_dev *pci)
ret = acp_hw_deinit(adata, &pci->dev);
if (ret)
dev_err(&pci->dev, "ACP de-init failed\n");
pm_runtime_forbid(&pci->dev);
pm_runtime_get_noresume(&pci->dev);
pci_release_regions(pci);
pci_disable_device(pci);
}
@ -128,6 +156,9 @@ static struct pci_driver acp7x_pci_driver = {
.id_table = snd_acp7x_ids,
.probe = snd_acp7x_probe,
.remove = snd_acp7x_remove,
.driver = {
.pm = &acp7x_pm_ops,
}
};
module_pci_driver(acp7x_pci_driver);