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Subject[PATCH 08/13] ASoC: amd: add acp6.2 pci driver pm ops
Date
Add acp6.2 pci driver pm ops.

Signed-off-by: Syed Saba Kareem <Syed.SabaKareem@amd.com>
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
---
sound/soc/amd/ps/acp62.h | 3 +++
sound/soc/amd/ps/pci-ps.c | 39 +++++++++++++++++++++++++++++++++++++++
2 files changed, 42 insertions(+)

diff --git a/sound/soc/amd/ps/acp62.h b/sound/soc/amd/ps/acp62.h
index 525e8bd225a2..c5b99e0b81fc 100644
--- a/sound/soc/amd/ps/acp62.h
+++ b/sound/soc/amd/ps/acp62.h
@@ -52,6 +52,9 @@
#define MAX_BUFFER (CAPTURE_MAX_PERIOD_SIZE * CAPTURE_MAX_NUM_PERIODS)
#define MIN_BUFFER MAX_BUFFER

+/* time in ms for runtime suspend delay */
+#define ACP_SUSPEND_DELAY_MS 2000
+
enum acp_config {
ACP_CONFIG_0 = 0,
ACP_CONFIG_1,
diff --git a/sound/soc/amd/ps/pci-ps.c b/sound/soc/amd/ps/pci-ps.c
index 4140fb42a7f7..7e2f68d9fc2c 100644
--- a/sound/soc/amd/ps/pci-ps.c
+++ b/sound/soc/amd/ps/pci-ps.c
@@ -13,6 +13,7 @@
#include <linux/acpi.h>
#include <linux/interrupt.h>
#include <sound/pcm_params.h>
+#include <linux/pm_runtime.h>

#include "acp62.h"

@@ -258,6 +259,10 @@ static int snd_acp62_probe(struct pci_dev *pci,
}
break;
}
+ 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;
unregister_devs:
for (--index; index >= 0; index--)
@@ -273,6 +278,35 @@ static int snd_acp62_probe(struct pci_dev *pci,
return ret;
}

+static int __maybe_unused snd_acp62_suspend(struct device *dev)
+{
+ struct acp62_dev_data *adata;
+ int ret;
+
+ adata = dev_get_drvdata(dev);
+ ret = acp62_deinit(adata->acp62_base);
+ if (ret)
+ dev_err(dev, "ACP de-init failed\n");
+ return ret;
+}
+
+static int __maybe_unused snd_acp62_resume(struct device *dev)
+{
+ struct acp62_dev_data *adata;
+ int ret;
+
+ adata = dev_get_drvdata(dev);
+ ret = acp62_init(adata->acp62_base);
+ if (ret)
+ dev_err(dev, "ACP init failed\n");
+ return ret;
+}
+
+static const struct dev_pm_ops acp62_pm_ops = {
+ SET_RUNTIME_PM_OPS(snd_acp62_suspend, snd_acp62_resume, NULL)
+ SET_SYSTEM_SLEEP_PM_OPS(snd_acp62_suspend, snd_acp62_resume)
+};
+
static void snd_acp62_remove(struct pci_dev *pci)
{
struct acp62_dev_data *adata;
@@ -286,6 +320,8 @@ static void snd_acp62_remove(struct pci_dev *pci)
ret = acp62_deinit(adata->acp62_base);
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);
}
@@ -303,6 +339,9 @@ static struct pci_driver ps_acp62_driver = {
.id_table = snd_acp62_ids,
.probe = snd_acp62_probe,
.remove = snd_acp62_remove,
+ .driver = {
+ .pm = &acp62_pm_ops,
+ }
};

module_pci_driver(ps_acp62_driver);
--
2.25.1
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