ASoC: amd: add vangogh pci driver pm ops

Add Vangogh acp pci driver pm ops.

Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://lore.kernel.org/r/20210721180430.11571-11-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/amd/vangogh/pci-acp5x.c b/sound/soc/amd/vangogh/pci-acp5x.c
index 25b42a37ad3a4aa35093a2537b0ac31f37cddb28..a57b762d9f2e1789315507a437f80759cd36bb48 100644 (file)
--- 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"
 
@@ -226,6 +227,10 @@ 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:
@@ -242,6 +247,41 @@ disable_pci:
        return ret;
 }
 
+static int __maybe_unused 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 __maybe_unused 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 = {
+       SET_RUNTIME_PM_OPS(snd_acp5x_suspend,
+                          snd_acp5x_resume, NULL)
+       SET_SYSTEM_SLEEP_PM_OPS(snd_acp5x_suspend, snd_acp5x_resume)
+};
+
 static void snd_acp5x_remove(struct pci_dev *pci)
 {
        struct acp5x_dev_data *adata;
@@ -255,6 +295,8 @@ 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);
 }
@@ -272,6 +314,9 @@ 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);