From c2cd821603c216a6a7242b2b4c1a093051e26aaf Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Mon, 17 Feb 2020 17:27:48 +0900
Subject: [PATCH] ASoC: soc-pcm: use dai_get_widget() at dpcm_end_walk_at_be()
Git-commit: c2cd821603c216a6a7242b2b4c1a093051e26aaf
Patch-mainline: v5.7-rc1
References: jsc#SLE-16518

dpcm_end_walk_at_be() has very duplicate code.

	dpcm_end_walk_at_be() {
		...
		if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
(1)			/* code for Playback */
		} else  {
(2)			/* code for Capture */
		}
	}

The difference between Playback (1) and Capture (2) code is pointer only
(= "playback_widget" or "caputre_widget").
OTOH, now we already has dai_get_widget() for it.
This means we can merge (1) and (2).
This patch do it and remove duplicated code.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/87eeutboul.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 sound/soc/soc-pcm.c | 37 ++++++++++++++++---------------------
 1 file changed, 16 insertions(+), 21 deletions(-)

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index b708db972310..7d4419ae63f6 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -1297,34 +1297,29 @@ static bool dpcm_end_walk_at_be(struct snd_soc_dapm_widget *widget,
 {
 	struct snd_soc_card *card = widget->dapm->card;
 	struct snd_soc_pcm_runtime *rtd;
+	struct snd_soc_dapm_widget *w;
 	struct snd_soc_dai *dai;
+	int stream;
 	int i;
 
-	if (dir == SND_SOC_DAPM_DIR_OUT) {
-		for_each_card_rtds(card, rtd) {
-			if (!rtd->dai_link->no_pcm)
-				continue;
+	/* adjust dir to stream */
+	if (dir == SND_SOC_DAPM_DIR_OUT)
+		stream = SNDRV_PCM_STREAM_PLAYBACK;
+	else
+		stream = SNDRV_PCM_STREAM_CAPTURE;
 
-			if (rtd->cpu_dai->playback_widget == widget)
-				return true;
+	for_each_card_rtds(card, rtd) {
+		if (!rtd->dai_link->no_pcm)
+			continue;
 
-			for_each_rtd_codec_dai(rtd, i, dai) {
-				if (dai->playback_widget == widget)
-					return true;
-			}
-		}
-	} else { /* SND_SOC_DAPM_DIR_IN */
-		for_each_card_rtds(card, rtd) {
-			if (!rtd->dai_link->no_pcm)
-				continue;
+		w = dai_get_widget(rtd->cpu_dai, stream);
+		if (w == widget)
+			return true;
 
-			if (rtd->cpu_dai->capture_widget == widget)
+		for_each_rtd_codec_dai(rtd, i, dai) {
+			w = dai_get_widget(dai, stream);
+			if (w == widget)
 				return true;
-
-			for_each_rtd_codec_dai(rtd, i, dai) {
-				if (dai->capture_widget == widget)
-					return true;
-			}
 		}
 	}
 
-- 
2.16.4