linux-kernel - [PATCH v5 2/9] ASoC: soc-core: Allow searching dai driver name in snd_soc_find

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Message-Id: <20170822075729.8438-3-jeffy.chen@rock-chips.com>
Date:   Tue, 22 Aug 2017 15:57:21 +0800
From:   Jeffy Chen <jeffy.chen@...k-chips.com>
To:     linux-kernel@...r.kernel.org, dgreid@...omium.org, heiko@...ech.de
Cc:     briannorris@...omium.org, mengdong.lin@...ux.intel.com,
        mka@...omium.org, lars@...afoo.de, dianders@...omium.org,
        Jeffy Chen <jeffy.chen@...k-chips.com>,
        Jaroslav Kysela <perex@...ex.cz>, alsa-devel@...a-project.org,
        Mark Brown <broonie@...nel.org>, Takashi Iwai <tiwai@...e.com>,
        Liam Girdwood <lgirdwood@...il.com>
Subject: [PATCH v5 2/9] ASoC: soc-core: Allow searching dai driver name in snd_soc_find_dai

Currently we are searching dai name in snd_soc_find_dai, which could
either be dai driver name or component device name(for legacy naming).

Allow searching dai driver name in snd_soc_find_dai too, so that we can
use dai driver name to find legacy naming dais.

Signed-off-by: Jeffy Chen <jeffy.chen@...k-chips.com>
---

Changes in v5:
Allow searching for dai driver name in snd_soc_find_dai, instead of
hacking non-zero device id to avoid legay dai naming.

Changes in v4: None
Changes in v3: None
Changes in v2: None

 sound/soc/soc-core.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 004daaa82102..77e7e2a11af0 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -950,7 +950,7 @@ static struct snd_soc_component *soc_find_component(
 /**
  * snd_soc_find_dai - Find a registered DAI
  *
- * @dlc: name of the DAI and optional component info to match
+ * @dlc: name of the DAI or the DAI driver and optional component info to match
  *
  * This function will search all registered components and their DAIs to
  * find the DAI of the same name. The component's of_node and name
@@ -978,7 +978,8 @@ struct snd_soc_dai *snd_soc_find_dai(
 		if (dlc->name && strcmp(component->name, dlc->name))
 			continue;
 		list_for_each_entry(dai, &component->dai_list, list) {
-			if (dlc->dai_name && strcmp(dai->name, dlc->dai_name))
+			if (dlc->dai_name && strcmp(dai->name, dlc->dai_name)
+			    && strcmp(dai->driver->name, dlc->dai_name))
 				continue;
 
 			return dai;
-- 
2.11.0