From e595b3252f4a53fc52227ca7a8b94199f9f319a9 Mon Sep 17 00:00:00 2001
From: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Date: Mon, 4 Oct 2010 16:28:59 +0100
Subject: [PATCH] ASoC: WM8804: Retrieve the device revision and print it

Be verbose and print out the device revision.

Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 sound/soc/codecs/wm8804.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/sound/soc/codecs/wm8804.c b/sound/soc/codecs/wm8804.c
index 2657f5c7ff08..642b07ceddfa 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);