1 files changed, 2 insertions, 3 deletions

diff --git a/sound/soc/codecs/wm8978.c b/sound/soc/codecs/wm8978.c
index 41ca4d9ac20c..85d514d63a4c 100644
--- a/sound/soc/codecs/wm8978.c
+++ b/sound/soc/codecs/wm8978.c
@@ -18,7 +18,6 @@
 #include <linux/delay.h>
 #include <linux/pm.h>
 #include <linux/i2c.h>
-#include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
@@ -865,7 +864,7 @@ static int wm8978_set_bias_level(struct snd_soc_codec *codec,
 #define WM8978_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
         SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
 
-static struct snd_soc_dai_ops wm8978_dai_ops = {
+static const struct snd_soc_dai_ops wm8978_dai_ops = {
         .hw_params      = wm8978_hw_params,
         .digital_mute   = wm8978_mute,
         .set_fmt        = wm8978_set_dai_fmt,
@@ -893,7 +892,7 @@ static struct snd_soc_dai_driver wm8978_dai = {
         .ops = &wm8978_dai_ops,
 };
 
-static int wm8978_suspend(struct snd_soc_codec *codec, pm_message_t state)
+static int wm8978_suspend(struct snd_soc_codec *codec)
 {
         wm8978_set_bias_level(codec, SND_SOC_BIAS_OFF);
         /* Also switch PLL off */