crypto: omap-aes - Add suspend/resume support

Add suspend/resume support to the OMAP AES driver.

CC: Dmitry Kasatkin <dmitry.kasatkin@intel.com>
Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c
index c229852..3262139 100644 (file)
--- a/drivers/crypto/omap-aes.c
+++ b/drivers/crypto/omap-aes.c
@@ -891,12 +891,31 @@ static int omap_aes_remove(struct platform_device *pdev)
        return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int omap_aes_suspend(struct device *dev)
+{
+       pm_runtime_put_sync(dev);
+       return 0;
+}
+
+static int omap_aes_resume(struct device *dev)
+{
+       pm_runtime_get_sync(dev);
+       return 0;
+}
+#endif
+
+static const struct dev_pm_ops omap_aes_pm_ops = {
+       SET_SYSTEM_SLEEP_PM_OPS(omap_aes_suspend, omap_aes_resume)
+};
+
 static struct platform_driver omap_aes_driver = {
        .probe  = omap_aes_probe,
        .remove = omap_aes_remove,
        .driver = {
                .name   = "omap-aes",
                .owner  = THIS_MODULE,
+               .pm     = &omap_aes_pm_ops,
        },
 };