From 6e5099288c946037476abd1488e4c7ab6b818e2b Mon Sep 17 00:00:00 2001
From: Annaliese McDermond <nh6z@nh6z.net>
Date: Wed, 3 Apr 2019 21:01:55 -0700
Subject: [PATCH] ASoC: tlv320aic32x4: Add Playback PowerTune Controls

commit d3e6e374566e1154820a9a3dc82f7eef646fcf95 upstream.

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>
---
 sound/soc/codecs/tlv320aic32x4.c | 9 +++++++++
 sound/soc/codecs/tlv320aic32x4.h | 2 ++
 2 files changed, 11 insertions(+)

--- 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),
--- a/sound/soc/codecs/tlv320aic32x4.h
+++ b/sound/soc/codecs/tlv320aic32x4.h
@@ -78,6 +78,8 @@ int aic32x4_register_clocks(struct devic
 
 #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)
