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>
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 @@
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);