ASoC: tlv320aic32x4: Add Playback PowerTune Controls

PowerTune controls the power level of the chip.  On playback this
indirectly controls things like the gain of the various output
amplifiers.  This can allow for the decrease of output levels
from the codec.  This adds controls for those power levels to
the driver.

Signed-off-by: Annaliese McDermond <nh6z@nh6z.net>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/codecs/tlv320aic32x4.c b/sound/soc/codecs/tlv320aic32x4.c
index 77df2cb..6edee05 100644 (file)
--- a/sound/soc/codecs/tlv320aic32x4.c
+++ b/sound/soc/codecs/tlv320aic32x4.c
@@ -248,9 +248,18 @@ static const char * const lo_cm_text[] = {
 
 static SOC_ENUM_SINGLE_DECL(lo_cm_enum, AIC32X4_CMMODE, 3, lo_cm_text);
 
+static const char * const ptm_text[] = {
+       "P3", "P2", "P1",
+};
+
+static SOC_ENUM_SINGLE_DECL(l_ptm_enum, AIC32X4_LPLAYBACK, 2, ptm_text);
+static SOC_ENUM_SINGLE_DECL(r_ptm_enum, AIC32X4_RPLAYBACK, 2, ptm_text);
+
 static const struct snd_kcontrol_new aic32x4_snd_controls[] = {
        SOC_DOUBLE_R_S_TLV("PCM Playback Volume", AIC32X4_LDACVOL,
                        AIC32X4_RDACVOL, 0, -0x7f, 0x30, 7, 0, tlv_pcm),
+       SOC_ENUM("DAC Left Playback PowerTune Switch", l_ptm_enum),
+       SOC_ENUM("DAC Right Playback PowerTune Switch", r_ptm_enum),
        SOC_DOUBLE_R_S_TLV("HP Driver Gain Volume", AIC32X4_HPLGAIN,
                        AIC32X4_HPRGAIN, 0, -0x6, 0x1d, 5, 0,
                        tlv_driver_gain),

diff --git a/sound/soc/codecs/tlv320aic32x4.h b/sound/soc/codecs/tlv320aic32x4.h
index 88205bc..4073421 100644 (file)
--- a/sound/soc/codecs/tlv320aic32x4.h
+++ b/sound/soc/codecs/tlv320aic32x4.h
@@ -78,6 +78,8 @@ int aic32x4_register_clocks(struct device *dev, const char *mclk_name);
 
 #define AIC32X4_PWRCFG         AIC32X4_REG(1, 1)
 #define AIC32X4_LDOCTL         AIC32X4_REG(1, 2)
+#define AIC32X4_LPLAYBACK      AIC32X4_REG(1, 3)
+#define AIC32X4_RPLAYBACK      AIC32X4_REG(1, 4)
 #define AIC32X4_OUTPWRCTL      AIC32X4_REG(1, 9)
 #define AIC32X4_CMMODE         AIC32X4_REG(1, 10)
 #define AIC32X4_HPLROUTE       AIC32X4_REG(1, 12)