[ALSA] PATCH] Add PM support to PnP drivers
Add suspend/resume callback to pnp_driver and pnp_card_driver.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/drivers/pnp/driver.c b/drivers/pnp/driver.c
index d3ccce7..ea2cb9a 100644
--- a/drivers/pnp/driver.c
+++ b/drivers/pnp/driver.c
@@ -146,10 +146,30 @@
return 1;
}
+static int pnp_bus_suspend(struct device *dev, pm_message_t state)
+{
+ struct pnp_dev * pnp_dev = to_pnp_dev(dev);
+ struct pnp_driver * pnp_drv = pnp_dev->driver;
+
+ if (pnp_drv && pnp_drv->suspend)
+ return pnp_drv->suspend(pnp_dev, state);
+ return 0;
+}
+
+static void pnp_bus_resume(struct device *dev)
+{
+ struct pnp_dev * pnp_dev = to_pnp_dev(dev);
+ struct pnp_driver * pnp_drv = pnp_dev->driver;
+
+ if (pnp_drv && pnp_drv->resume)
+ pnp_drv->resume(pnp_dev);
+}
struct bus_type pnp_bus_type = {
.name = "pnp",
.match = pnp_bus_match,
+ .suspend = pnp_bus_suspend,
+ .resume = pnp_bus_resume,
};