ASoC: Tegra: Suspend/resume support

ASoC machine drivers that are their own platform_driver (as opposed to
those using the soc-audio platform_driver) need to explicitly set up
power-management operation callbacks.

To avoid cut/paste, snd_soc_pm_ops also needs to be exported.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/soc-core.c

@@ -2060,6 +2060,7 @@ const struct dev_pm_ops snd_soc_pm_ops = {
 	.resume = snd_soc_resume,
 	.poweroff = snd_soc_poweroff,
 };
+EXPORT_SYMBOL_GPL(snd_soc_pm_ops);
 
 /* ASoC platform driver */
 static struct platform_driver soc_driver = {

sound/soc/tegra/harmony.c

@@ -370,6 +370,7 @@ static struct platform_driver tegra_snd_harmony_driver = {
 	.driver = {
 		.name = DRV_NAME,
 		.owner = THIS_MODULE,
+		.pm = &snd_soc_pm_ops,
 	},
 	.probe = tegra_snd_harmony_probe,
 	.remove = __devexit_p(tegra_snd_harmony_remove),