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Subject[PATCH 1/2] ASoC: max98090: Add check for CODEC type
Date
CODEC type (MAX98090/MAX98091) can be specified from device-tree file,
it can also be obtained from the CODEC during runtime.

Add an explicit check to figure out if both are matching, else print
a message warning about the same.

Signed-off-by: Tushar Behera <tushar.b@samsung.com>
---
sound/soc/codecs/max98090.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/sound/soc/codecs/max98090.c b/sound/soc/codecs/max98090.c
index ca74f502..1ed06d9 100644
--- a/sound/soc/codecs/max98090.c
+++ b/sound/soc/codecs/max98090.c
@@ -2215,6 +2215,7 @@ static int max98090_probe(struct snd_soc_codec *codec)
{
struct max98090_priv *max98090 = snd_soc_codec_get_drvdata(codec);
struct max98090_cdata *cdata;
+ enum max98090_type devtype;
int ret = 0;

dev_dbg(codec->dev, "max98090_probe\n");
@@ -2250,16 +2251,21 @@ static int max98090_probe(struct snd_soc_codec *codec)
}

if ((ret >= M98090_REVA) && (ret <= M98090_REVA + 0x0f)) {
- max98090->devtype = MAX98090;
+ devtype = MAX98090;
dev_info(codec->dev, "MAX98090 REVID=0x%02x\n", ret);
} else if ((ret >= M98091_REVA) && (ret <= M98091_REVA + 0x0f)) {
- max98090->devtype = MAX98091;
+ devtype = MAX98091;
dev_info(codec->dev, "MAX98091 REVID=0x%02x\n", ret);
} else {
- max98090->devtype = MAX98090;
+ devtype = MAX98090;
dev_err(codec->dev, "Unrecognized revision 0x%02x\n", ret);
}

+ if (max98090->devtype != devtype) {
+ dev_warn(codec->dev, "Mismatch in DT specified CODEC type.\n");
+ max98090->devtype = devtype;
+ }
+
max98090->jack_state = M98090_JACK_STATE_NO_HEADSET;

INIT_DELAYED_WORK(&max98090->jack_work, max98090_jack_work);
--
1.7.9.5


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