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[PATCHv3,3/3] ASoC: core: Fix check before setting default I/O up try regmap

Message ID 1393814199-9937-4-git-send-email-Li.Xiubo@freescale.com
State Not Applicable
Headers show

Commit Message

Xiubo Li March 3, 2014, 2:36 a.m. UTC 
Since the CODEC driver could specify its own I/O(read and write)
while registering the CODEC for some reason, maybe the MFDs is
used, etc.

So just do check it, if they are not specified by CODEC driver
then try to set up the default regmap I/O if regmap is used.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
---
 sound/soc/soc-core.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)
diff mbox

Patch

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 6880fad..a14155b 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1137,9 +1137,15 @@  static int soc_probe_codec(struct snd_soc_card *card,
 
 	codec->dapm.idle_bias_off = driver->idle_bias_off;
 
-	/* Set the default I/O up try regmap */
-	if (dev_get_regmap(codec->dev, NULL))
-		snd_soc_codec_set_cache_io(codec, NULL);
+	if (!codec->write && dev_get_regmap(codec->dev, NULL)) {
+		/* Set the default I/O up try regmap */
+		ret = snd_soc_codec_set_cache_io(codec, NULL);
+		if (ret < 0) {
+			dev_err(codec->dev,
+				"Failed to set cache I/O: %d\n", ret);
+			goto err_probe;
+		}
+	}
 
 	if (driver->probe) {
 		ret = driver->probe(codec);