ASoC: Intel: Skylake: Add pm ops for broxton-rt298 machine

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/intel/boards/bxt_rt298.c b/sound/soc/intel/boards/bxt_rt298.c
index 8b95650..253d7bf 100644
--- a/sound/soc/intel/boards/bxt_rt298.c
+++ b/sound/soc/intel/boards/bxt_rt298.c
@@ -458,6 +458,7 @@
 	.probe = broxton_audio_probe,
 	.driver = {
 		.name = "bxt_alc298s_i2s",
+		.pm = &snd_soc_pm_ops,
 	},
 };
 module_platform_driver(broxton_audio)