[alsa-devel] [PATCH] ASoC: WM8804: Retrieve the device revision and print it

[Dimitris Papastamos]

Be verbose and print out the device revision.

Signed-off-by: Dimitris Papastamos <dp at opensource.wolfsonmicro.com>
---
 sound/soc/codecs/wm8804.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/sound/soc/codecs/wm8804.c b/sound/soc/codecs/wm8804.c
index 2657f5c..642b07c 100644
--- a/sound/soc/codecs/wm8804.c
+++ b/sound/soc/codecs/wm8804.c
@@ -643,6 +643,14 @@ static int wm8804_probe(struct snd_soc_codec *codec)
 		goto err_reg_enable;
 	}
 
+	ret = snd_soc_read(codec, WM8804_DEVREV);
+	if (ret < 0) {
+		dev_err(codec->dev, "Failed to read device revision: %d\n",
+			ret);
+		goto err_reg_enable;
+	}
+	dev_info(codec->dev, "revision %c\n", ret + 'A');
+
 	ret = wm8804_reset(codec);
 	if (ret < 0) {
 		dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
-- 
1.7.3.1