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Subject[PATCH 08/13] ASoC: amd: add acp6x pci driver pm ops
Date
Add acp6x pci driver pm ops.

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
---
sound/soc/amd/yc/acp6x.h | 3 +++
sound/soc/amd/yc/pci-acp6x.c | 40 ++++++++++++++++++++++++++++++++++++
2 files changed, 43 insertions(+)

diff --git a/sound/soc/amd/yc/acp6x.h b/sound/soc/amd/yc/acp6x.h
index 3f83de229409..b0d3f6a9d0ce 100644
--- a/sound/soc/amd/yc/acp6x.h
+++ b/sound/soc/amd/yc/acp6x.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/yc/pci-acp6x.c b/sound/soc/amd/yc/pci-acp6x.c
index 86b33f401e12..5f07db987cca 100644
--- a/sound/soc/amd/yc/pci-acp6x.c
+++ b/sound/soc/amd/yc/pci-acp6x.c
@@ -11,6 +11,7 @@
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <sound/pcm_params.h>
+#include <linux/pm_runtime.h>

#include "acp6x.h"

@@ -245,6 +246,11 @@ static int snd_acp6x_probe(struct pci_dev *pci,
dev_err(&pci->dev, "ACP PCI IRQ request failed\n");
goto unregister_devs;
}
+ 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--)
@@ -260,6 +266,35 @@ static int snd_acp6x_probe(struct pci_dev *pci,
return ret;
}

+static int __maybe_unused snd_acp6x_suspend(struct device *dev)
+{
+ struct acp6x_dev_data *adata;
+ int ret;
+
+ adata = dev_get_drvdata(dev);
+ ret = acp6x_deinit(adata->acp6x_base);
+ if (ret)
+ dev_err(dev, "ACP de-init failed\n");
+ return ret;
+}
+
+static int __maybe_unused snd_acp6x_resume(struct device *dev)
+{
+ struct acp6x_dev_data *adata;
+ int ret;
+
+ adata = dev_get_drvdata(dev);
+ ret = acp6x_init(adata->acp6x_base);
+ if (ret)
+ dev_err(dev, "ACP init failed\n");
+ return ret;
+}
+
+static const struct dev_pm_ops acp6x_pm = {
+ SET_RUNTIME_PM_OPS(snd_acp6x_suspend, snd_acp6x_resume, NULL)
+ SET_SYSTEM_SLEEP_PM_OPS(snd_acp6x_suspend, snd_acp6x_resume)
+};
+
static void snd_acp6x_remove(struct pci_dev *pci)
{
struct acp6x_dev_data *adata;
@@ -273,6 +308,8 @@ static void snd_acp6x_remove(struct pci_dev *pci)
ret = acp6x_deinit(adata->acp6x_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);
}
@@ -290,6 +327,9 @@ static struct pci_driver yc_acp6x_driver = {
.id_table = snd_acp6x_ids,
.probe = snd_acp6x_probe,
.remove = snd_acp6x_remove,
+ .driver = {
+ .pm = &acp6x_pm,
+ }
};

module_pci_driver(yc_acp6x_driver);
--
2.25.1
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