From b2acc24c805a42b6ebfe8b8ae09dbf9c994c5604 Mon Sep 17 00:00:00 2001
From: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Date: Thu, 9 Apr 2020 13:44:16 -0500
Subject: [PATCH] ASoC: soc-core: Add dynamic debug logs in soc_dai_link_sanity_check()
Git-commit: b2acc24c805a42b6ebfe8b8ae09dbf9c994c5604
Patch-mainline: v5.8-rc1
References: jsc#SLE-16518

When a platform device is created successfully but the machine driver
probe fails due to errors with missing components during the card bind
stage, no error is propagated or logged. To help flag such problems,
add a dynamic debug log.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Daniel Baluta <daniel.baluta@gmail.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200409184416.15591-5-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 sound/soc/soc-core.c | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 843b8b1c89d4..8b2f6dd2fc8e 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -865,8 +865,12 @@ static int soc_dai_link_sanity_check(struct snd_soc_card *card,
 		 * Defer card registration if codec component is not added to
 		 * component list.
 		 */
-		if (!soc_find_component(codec))
+		if (!soc_find_component(codec)) {
+			dev_dbg(card->dev,
+				"ASoC: codec component %s not found for link %s\n",
+				codec->name, link->name);
 			return -EPROBE_DEFER;
+		}
 	}
 
 	for_each_link_platforms(link, i, platform) {
@@ -886,8 +890,12 @@ static int soc_dai_link_sanity_check(struct snd_soc_card *card,
 		 * Defer card registration if platform component is not added to
 		 * component list.
 		 */
-		if (!soc_find_component(platform))
+		if (!soc_find_component(platform)) {
+			dev_dbg(card->dev,
+				"ASoC: platform component %s not found for link %s\n",
+				platform->name, link->name);
 			return -EPROBE_DEFER;
+		}
 	}
 
 	for_each_link_cpus(link, i, cpu) {
@@ -908,8 +916,12 @@ static int soc_dai_link_sanity_check(struct snd_soc_card *card,
 		 * component list.
 		 */
 		if ((cpu->of_node || cpu->name) &&
-		    !soc_find_component(cpu))
+		    !soc_find_component(cpu)) {
+			dev_dbg(card->dev,
+				"ASoC: cpu component %s not found for link %s\n",
+				cpu->name, link->name);
 			return -EPROBE_DEFER;
+		}
 
 		/*
 		 * At least one of CPU DAI name or CPU device name/node must be
-- 
2.16.4