[PATCH 10/12] ASoC: amd: add vangogh pci driver pm ops

From: Vijendar Mukunda
Date: Wed Jul 07 2021 - 01:42:12 EST


Add Vangogh acp pci driver pm ops.

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@xxxxxxx>
---
sound/soc/amd/vangogh/pci-acp5x.c | 45 +++++++++++++++++++++++++++++++
1 file changed, 45 insertions(+)

diff --git a/sound/soc/amd/vangogh/pci-acp5x.c b/sound/soc/amd/vangogh/pci-acp5x.c
index 2779423f7cd3..c95e2212188f 100644
--- a/sound/soc/amd/vangogh/pci-acp5x.c
+++ b/sound/soc/amd/vangogh/pci-acp5x.c
@@ -10,6 +10,7 @@
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
+#include <linux/pm_runtime.h>

#include "acp5x.h"

@@ -255,6 +256,10 @@ static int snd_acp5x_probe(struct pci_dev *pci,
default:
dev_info(&pci->dev, "ACP audio mode : %d\n", val);
}
+ pm_runtime_set_autosuspend_delay(&pci->dev, 2000);
+ pm_runtime_use_autosuspend(&pci->dev);
+ pm_runtime_put_noidle(&pci->dev);
+ pm_runtime_allow(&pci->dev);
return 0;

unregister_devs:
@@ -272,6 +277,41 @@ static int snd_acp5x_probe(struct pci_dev *pci,
return ret;
}

+static int snd_acp5x_suspend(struct device *dev)
+{
+ int ret;
+ struct acp5x_dev_data *adata;
+
+ adata = dev_get_drvdata(dev);
+ ret = acp5x_deinit(adata->acp5x_base);
+ if (ret)
+ dev_err(dev, "ACP de-init failed\n");
+ else
+ dev_dbg(dev, "ACP de-initialized\n");
+
+ return ret;
+}
+
+static int snd_acp5x_resume(struct device *dev)
+{
+ int ret;
+ struct acp5x_dev_data *adata;
+
+ adata = dev_get_drvdata(dev);
+ ret = acp5x_init(adata->acp5x_base);
+ if (ret) {
+ dev_err(dev, "ACP init failed\n");
+ return ret;
+ }
+ return 0;
+}
+
+static const struct dev_pm_ops acp5x_pm = {
+ .runtime_suspend = snd_acp5x_suspend,
+ .runtime_resume = snd_acp5x_resume,
+ .resume = snd_acp5x_resume,
+};
+
static void snd_acp5x_remove(struct pci_dev *pci)
{
struct acp5x_dev_data *adata;
@@ -285,6 +325,8 @@ static void snd_acp5x_remove(struct pci_dev *pci)
ret = acp5x_deinit(adata->acp5x_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);
}
@@ -302,6 +344,9 @@ static struct pci_driver acp5x_driver = {
.id_table = snd_acp5x_ids,
.probe = snd_acp5x_probe,
.remove = snd_acp5x_remove,
+ .driver = {
+ .pm = &acp5x_pm,
+ }
};

module_pci_driver(acp5x_driver);
--
2.17.1