ASoC: Pass dai_link as argument to platform suspend and resume

Passing pointer to relevant dai_link provides easier reach to the
ASoC tree in suspend/resume of snd_soc_platform. It also provides
direct access to the dai at the other end of the dai_link.
Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

include/sound/soc.h

@@ -212,6 +212,7 @@ struct snd_soc_dai_mode;
 struct snd_soc_pcm_runtime;
 struct snd_soc_dai;
 struct snd_soc_platform;
+struct snd_soc_dai_link;
 struct snd_soc_codec;
 struct soc_enum;
 struct snd_soc_ac97_ops;
@@ -461,8 +462,8 @@ struct snd_soc_platform {
 
 	int (*probe)(struct platform_device *pdev);
 	int (*remove)(struct platform_device *pdev);
-	int (*suspend)(struct snd_soc_dai *dai);
-	int (*resume)(struct snd_soc_dai *dai);
+	int (*suspend)(struct snd_soc_dai_link *dai_link);
+	int (*resume)(struct snd_soc_dai_link *dai_link);
 
 	/* pcm creation and destruction */
 	int (*pcm_new)(struct snd_card *, struct snd_soc_dai *,

sound/soc/atmel/atmel-pcm.c

@@ -415,8 +415,9 @@ static void atmel_pcm_free_dma_buffers(struct snd_pcm *pcm)
 }
 
 #ifdef CONFIG_PM
-static int atmel_pcm_suspend(struct snd_soc_dai *dai)
+static int atmel_pcm_suspend(struct snd_soc_dai_link *dai_link)
 {
+	struct snd_soc_dai *dai = dai_link->cpu_dai;
 	struct snd_pcm_runtime *runtime = dai->runtime;
 	struct atmel_runtime_data *prtd;
 	struct atmel_pcm_dma_params *params;
@@ -439,8 +440,9 @@ static int atmel_pcm_suspend(struct snd_soc_dai *dai)
 	return 0;
 }
 
-static int atmel_pcm_resume(struct snd_soc_dai *dai)
+static int atmel_pcm_resume(struct snd_soc_dai_link *dai_link)
 {
+	struct snd_soc_dai *dai = dai_link->cpu_dai;
 	struct snd_pcm_runtime *runtime = dai->runtime;
 	struct atmel_runtime_data *prtd;
 	struct atmel_pcm_dma_params *params;

sound/soc/soc-core.c

@@ -854,7 +854,7 @@ static int soc_suspend(struct device *dev)
 		if (cpu_dai->suspend && !cpu_dai->ac97_control)
 			cpu_dai->suspend(cpu_dai);
 		if (platform->suspend)
-			platform->suspend(cpu_dai);
+			platform->suspend(&card->dai_link[i]);
 	}
 
 	/* close any waiting streams and save state */
@@ -943,7 +943,7 @@ static void soc_resume_deferred(struct work_struct *work)
 		if (cpu_dai->resume && !cpu_dai->ac97_control)
 			cpu_dai->resume(cpu_dai);
 		if (platform->resume)
-			platform->resume(cpu_dai);
+			platform->resume(&card->dai_link[i]);
 	}
 
 	if (card->resume_post)