ASoC: twl6040: Enable automatic power for phoenix 1.1

Phoenix 1.1 supports automatic power on sequence, a
verification is added to use it with new revision of
the chip.

Signed-off-by: Margarita Olaya Cabrera <magi.olaya@ti.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>

diff --git a/sound/soc/codecs/twl6040.c b/sound/soc/codecs/twl6040.c
index 5081e81..c543504 100644 (file)
--- a/sound/soc/codecs/twl6040.c
+++ b/sound/soc/codecs/twl6040.c
@@ -1108,6 +1108,7 @@ static int twl6040_probe(struct snd_soc_codec *codec)
        struct twl6040_data *priv;
        int audpwron, naudint;
        int ret = 0;
+       u8 icrev;
 
        priv = kzalloc(sizeof(struct twl6040_data), GFP_KERNEL);
        if (priv == NULL)
@@ -1116,13 +1117,17 @@ static int twl6040_probe(struct snd_soc_codec *codec)
 
        priv->codec = codec;
 
-       if (twl_codec) {
+       twl_i2c_read_u8(TWL_MODULE_AUDIO_VOICE, &icrev, TWL6040_REG_ASICREV);
+
+       if (twl_codec && (icrev > 0))
                audpwron = twl_codec->audpwron_gpio;
-               naudint = twl_codec->naudint_irq;
-       } else {
+       else
                audpwron = -EINVAL;
+
+       if (twl_codec)
+               naudint = twl_codec->naudint_irq;
+       else
                naudint = 0;
-       }
 
        priv->audpwron = audpwron;
        priv->naudint = naudint;