ASoC: dapm: Factor out duplicated code in soc_dapm_stream_event()

Commit Message

Lars-Peter Clausen April 29, 2014, 12:51 p.m. UTC

In soc_dapm_stream_event() we have the same code twice, once for the codec_dai
and once for the cpu_dai.  This patch factors the duplicated code out into a
separate function. This will make it easier to modify the implementation (since
there is only one place that needs to be updated) and also easier to add support
for more than two DAIs per DAI link.

Signed-off-by: Lars-Peter Clausen <[e-mail]>
---
 sound/soc/soc-dapm.c | 51 ++++++++++++++++-----------------------------------
 1 file changed, 16 insertions(+), 35 deletions(-)

Comments

Mark Brown April 29, 2014, 4:41 p.m. UTC | #1

On Tue, Apr 29, 2014 at 02:51:22PM +0200, Lars-Peter Clausen wrote:
> In soc_dapm_stream_event() we have the same code twice, once for the codec_dai
> and once for the cpu_dai.  This patch factors the duplicated code out into a
> separate function. This will make it easier to modify the implementation (since
> there is only one place that needs to be updated) and also easier to add support
> for more than two DAIs per DAI link.

Applied, thanks.

Patch

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index a2475e1..1871dfc 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -3446,32 +3446,25 @@  void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card)
 	}
 }
 
-static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream,
+static void soc_dapm_dai_stream_event(struct snd_soc_dai *dai, int stream,
 	int event)
 {
+	struct snd_soc_dapm_widget *w;
 
-	struct snd_soc_dapm_widget *w_cpu, *w_codec;
-	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
-	struct snd_soc_dai *codec_dai = rtd->codec_dai;
-
-	if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
-		w_cpu = cpu_dai->playback_widget;
-		w_codec = codec_dai->playback_widget;
-	} else {
-		w_cpu = cpu_dai->capture_widget;
-		w_codec = codec_dai->capture_widget;
-	}
-
-	if (w_cpu) {
+	if (stream == SNDRV_PCM_STREAM_PLAYBACK)
+		w = dai->playback_widget;
+	else
+		w = dai->capture_widget;
 
-		dapm_mark_dirty(w_cpu, "stream event");
+	if (w) {
+		dapm_mark_dirty(w, "stream event");
 
 		switch (event) {
 		case SND_SOC_DAPM_STREAM_START:
-			w_cpu->active = 1;
+			w->active = 1;
 			break;
 		case SND_SOC_DAPM_STREAM_STOP:
-			w_cpu->active = 0;
+			w->active = 0;
 			break;
 		case SND_SOC_DAPM_STREAM_SUSPEND:
 		case SND_SOC_DAPM_STREAM_RESUME:
@@ -3480,25 +3473,13 @@  static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream,
 			break;
 		}
 	}
+}
 
-	if (w_codec) {
-
-		dapm_mark_dirty(w_codec, "stream event");
-
-		switch (event) {
-		case SND_SOC_DAPM_STREAM_START:
-			w_codec->active = 1;
-			break;
-		case SND_SOC_DAPM_STREAM_STOP:
-			w_codec->active = 0;
-			break;
-		case SND_SOC_DAPM_STREAM_SUSPEND:
-		case SND_SOC_DAPM_STREAM_RESUME:
-		case SND_SOC_DAPM_STREAM_PAUSE_PUSH:
-		case SND_SOC_DAPM_STREAM_PAUSE_RELEASE:
-			break;
-		}
-	}
+static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream,
+	int event)
+{
+	soc_dapm_dai_stream_event(rtd->cpu_dai, stream, event);
+	soc_dapm_dai_stream_event(rtd->codec_dai, stream, event);
 
 	dapm_power_widgets(rtd->card, event);
 }