ASoC: es8328: Fix deemphasis values
authorJohn Keeping <john@metanate.com>
Wed, 9 Dec 2015 11:38:13 +0000 (11:38 +0000)
committerMark Brown <broonie@kernel.org>
Wed, 9 Dec 2015 20:42:19 +0000 (20:42 +0000)
This is using completely the wrong mask and value when updating the
register.  Since the correct values are already defined in the header,
switch to using a table with explicit constants rather than shifting the
array index.

Signed-off-by: John Keeping <john@metanate.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
sound/soc/codecs/es8328.c
sound/soc/codecs/es8328.h

index 969e337dc17c131413e43f666edd5b299fc11544..c4c64e21963ece5a952664fae6afbe15b0d39fdf 100644 (file)
@@ -85,7 +85,15 @@ static const DECLARE_TLV_DB_SCALE(pga_tlv, 0, 300, 0);
 static const DECLARE_TLV_DB_SCALE(bypass_tlv, -1500, 300, 0);
 static const DECLARE_TLV_DB_SCALE(mic_tlv, 0, 300, 0);
 
-static const int deemph_settings[] = { 0, 32000, 44100, 48000 };
+static const struct {
+       int rate;
+       unsigned int val;
+} deemph_settings[] = {
+       { 0,     ES8328_DACCONTROL6_DEEMPH_OFF },
+       { 32000, ES8328_DACCONTROL6_DEEMPH_32k },
+       { 44100, ES8328_DACCONTROL6_DEEMPH_44_1k },
+       { 48000, ES8328_DACCONTROL6_DEEMPH_48k },
+};
 
 static int es8328_set_deemph(struct snd_soc_codec *codec)
 {
@@ -97,21 +105,22 @@ static int es8328_set_deemph(struct snd_soc_codec *codec)
         * rate.
         */
        if (es8328->deemph) {
-               best = 1;
-               for (i = 2; i < ARRAY_SIZE(deemph_settings); i++) {
-                       if (abs(deemph_settings[i] - es8328->playback_fs) <
-                           abs(deemph_settings[best] - es8328->playback_fs))
+               best = 0;
+               for (i = 1; i < ARRAY_SIZE(deemph_settings); i++) {
+                       if (abs(deemph_settings[i].rate - es8328->playback_fs) <
+                           abs(deemph_settings[best].rate - es8328->playback_fs))
                                best = i;
                }
 
-               val = best << 1;
+               val = deemph_settings[best].val;
        } else {
-               val = 0;
+               val = ES8328_DACCONTROL6_DEEMPH_OFF;
        }
 
        dev_dbg(codec->dev, "Set deemphasis %d\n", val);
 
-       return snd_soc_update_bits(codec, ES8328_DACCONTROL6, 0x6, val);
+       return snd_soc_update_bits(codec, ES8328_DACCONTROL6,
+                       ES8328_DACCONTROL6_DEEMPH_MASK, val);
 }
 
 static int es8328_get_deemph(struct snd_kcontrol *kcontrol,
index cb36afe10c0ecdf0b51183bea6eb8446e01271d3..156c748c89c7e55d86421b27522b22f9b16d6f76 100644 (file)
@@ -153,6 +153,7 @@ int es8328_probe(struct device *dev, struct regmap *regmap);
 #define ES8328_DACCONTROL6_CLICKFREE (1 << 3)
 #define ES8328_DACCONTROL6_DAC_INVR (1 << 4)
 #define ES8328_DACCONTROL6_DAC_INVL (1 << 5)
+#define ES8328_DACCONTROL6_DEEMPH_MASK (3 << 6)
 #define ES8328_DACCONTROL6_DEEMPH_OFF (0 << 6)
 #define ES8328_DACCONTROL6_DEEMPH_32k (1 << 6)
 #define ES8328_DACCONTROL6_DEEMPH_44_1k (2 << 6)