ASoC: twl6040: Function to fetch the TRIM values

Provide API to fetch the TRIM values (for machine drivers)

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

2 files changed, 22 insertions, 0 deletions

diff --git a/sound/soc/codecs/twl6040.c b/sound/soc/codecs/twl6040.c
index 7226ae788f2d..0a8728ef1131 100644
--- a/sound/soc/codecs/twl6040.c
+++ b/sound/soc/codecs/twl6040.c
@@ -1072,6 +1072,15 @@ int twl6040_get_clk_id(struct snd_soc_codec *codec)
 }
 EXPORT_SYMBOL_GPL(twl6040_get_clk_id);
 
+int twl6040_get_trim_value(struct snd_soc_codec *codec, enum twl6040_trim trim)
+{
+        if (unlikely(trim >= TWL6040_TRIM_INVAL))
+                return -EINVAL;
+
+        return twl6040_read_reg_cache(codec, TWL6040_REG_TRIM1 + trim);
+}
+EXPORT_SYMBOL_GPL(twl6040_get_trim_value);
+
 static const struct snd_kcontrol_new twl6040_snd_controls[] = {
         /* Capture gains */
         SOC_DOUBLE_TLV("Capture Preamplifier Volume",
diff --git a/sound/soc/codecs/twl6040.h b/sound/soc/codecs/twl6040.h
index d8de67869dd9..a83277bdb851 100644
--- a/sound/soc/codecs/twl6040.h
+++ b/sound/soc/codecs/twl6040.h
@@ -22,8 +22,21 @@
 #ifndef __TWL6040_H__
 #define __TWL6040_H__
 
+enum twl6040_trim {
+        TWL6040_TRIM_TRIM1 = 0,
+        TWL6040_TRIM_TRIM2,
+        TWL6040_TRIM_TRIM3,
+        TWL6040_TRIM_HSOTRIM,
+        TWL6040_TRIM_HFOTRIM,
+        TWL6040_TRIM_INVAL,
+};
+
+#define TWL6040_HSF_TRIM_LEFT(x)        (x & 0x0f)
+#define TWL6040_HSF_TRIM_RIGHT(x)       ((x >> 4) & 0x0f)
+
 void twl6040_hs_jack_detect(struct snd_soc_codec *codec,
                             struct snd_soc_jack *jack, int report);
 int twl6040_get_clk_id(struct snd_soc_codec *codec);
+int twl6040_get_trim_value(struct snd_soc_codec *codec, enum twl6040_trim trim);
 
 #endif /* End of __TWL6040_H__ */