ASoC: amd: add RPL Platform pci driver pm-ops

[linux-2.6-microblaze.git] / sound / soc / amd / rpl / rpl-pci-acp6x.c

diff --git a/sound/soc/amd/rpl/rpl-pci-acp6x.c b/sound/soc/amd/rpl/rpl-pci-acp6x.c
index 71ae90a..a8e548e 100644 (file)
--- a/sound/soc/amd/rpl/rpl-pci-acp6x.c
+++ b/sound/soc/amd/rpl/rpl-pci-acp6x.c
@@ -10,6 +10,7 @@
 #include <linux/io.h>
 #include <linux/delay.h>
 #include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
 
 #include "rpl_acp6x.h"
 
@@ -144,6 +145,11 @@ static int snd_rpl_probe(struct pci_dev *pci,
        ret = rpl_init(adata->acp6x_base);
        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:
        pci_release_regions(pci);
@@ -153,6 +159,35 @@ disable_pci:
        return ret;
 }
 
+static int __maybe_unused snd_rpl_suspend(struct device *dev)
+{
+       struct rpl_dev_data *adata;
+       int ret;
+
+       adata = dev_get_drvdata(dev);
+       ret = rpl_deinit(adata->acp6x_base);
+       if (ret)
+               dev_err(dev, "ACP de-init failed\n");
+       return ret;
+}
+
+static int __maybe_unused snd_rpl_resume(struct device *dev)
+{
+       struct rpl_dev_data *adata;
+       int ret;
+
+       adata = dev_get_drvdata(dev);
+       ret = rpl_init(adata->acp6x_base);
+       if (ret)
+               dev_err(dev, "ACP init failed\n");
+       return ret;
+}
+
+static const struct dev_pm_ops rpl_pm = {
+       SET_RUNTIME_PM_OPS(snd_rpl_suspend, snd_rpl_resume, NULL)
+       SET_SYSTEM_SLEEP_PM_OPS(snd_rpl_suspend, snd_rpl_resume)
+};
+
 static void snd_rpl_remove(struct pci_dev *pci)
 {
        struct rpl_dev_data *adata;
@@ -162,6 +197,8 @@ static void snd_rpl_remove(struct pci_dev *pci)
        ret = rpl_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);
 }
@@ -179,6 +216,9 @@ static struct pci_driver rpl_acp6x_driver  = {
        .id_table = snd_rpl_ids,
        .probe = snd_rpl_probe,
        .remove = snd_rpl_remove,
+       .driver = {
+               .pm = &rpl_pm,
+       }
 };
 
 module_pci_driver(rpl_acp6x_driver);