[ALSA] PATCH] Add PM support to PnP drivers

[linux-2.6-omap-h63xx.git] / drivers / pnp / driver.c

diff --git a/drivers/pnp/driver.c b/drivers/pnp/driver.c
index d3ccce706ab4ce9ee20bf45e46112249fcdcf4c3..ea2cb9a8b21d7f40c5dbdeb5d77f19ae52ef1178 100644 (file)
--- a/drivers/pnp/driver.c
+++ b/drivers/pnp/driver.c
@@ -146,10 +146,30 @@ static int pnp_bus_match(struct device *dev, struct device_driver *drv)
        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,
 };