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>

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",

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__ */