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Subject[PATCH 2/3] ASoC: max98927: Added controls for Envelope tracking
Date
Signed-off-by: Ryan Lee <ryans.lee@maximintegrated.com>
---
Changelog:
Added a control("EnvTrack Headroom") to set different headroom value for envelop tracking function.
Added one more control for envelop tracking function enable/disable("EnvTrack Switch").
Removed writing process to register 0x0087 because it is read only register.

sound/soc/codecs/max98927.c | 19 +++++++++++++++----
sound/soc/codecs/max98927.h | 4 ++++
2 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/sound/soc/codecs/max98927.c b/sound/soc/codecs/max98927.c
index a1d3935..73c7a33 100644
--- a/sound/soc/codecs/max98927.c
+++ b/sound/soc/codecs/max98927.c
@@ -624,6 +624,18 @@ static SOC_ENUM_SINGLE_DECL(max98927_current_limit,
MAX98927_R0042_BOOST_CTRL1, 1,
max98927_current_limit_text);

+static const char * const max98927_env_track_headroom_text[] = {
+ "0.000V", "0.125V", "0.250V", "0.375V", "0.500V", "0.625V",
+ "0.750V", "0.875V", "1.000V", "1.125V", "1.250V", "1.375V",
+ "1.500V", "1.625V", "1.750V", "1.875V", "2.000V", "2.125V",
+ "2.250V", "2.375V", "2.500V", "2.625V", "2.750V", "2.875V",
+ "3.000V", "3.125V", "3.250V", "3.375V", "3.500V"
+};
+
+static SOC_ENUM_SINGLE_DECL(max98927_env_track_headroom,
+ MAX98927_R0082_ENV_TRACK_VOUT_HEADROOM, 0,
+ max98927_env_track_headroom_text);
+
static const struct snd_kcontrol_new max98927_snd_controls[] = {
SOC_SINGLE_TLV("Speaker Volume", MAX98927_R003C_SPK_GAIN,
0, 6, 0,
@@ -641,6 +653,9 @@ static SOC_ENUM_SINGLE_DECL(max98927_current_limit,
MAX98927_AMP_VOL_SEL_SHIFT, 1, 0),
SOC_ENUM("Boost Output Voltage", max98927_boost_voltage),
SOC_ENUM("Current Limit", max98927_current_limit),
+ SOC_SINGLE("EnvTrack Switch", MAX98927_R0086_ENV_TRACK_CTRL,
+ MAX98927_ENV_TRACKER_EN_SHIFT, 1, 0),
+ SOC_ENUM("EnvTrack Headroom", max98927_env_track_headroom),
};

static const struct snd_soc_dapm_route max98927_audio_map[] = {
@@ -744,10 +759,6 @@ static int max98927_probe(struct snd_soc_codec *codec)
regmap_write(max98927->regmap,
MAX98927_R0086_ENV_TRACK_CTRL,
0x01);
- regmap_write(max98927->regmap,
- MAX98927_R0087_ENV_TRACK_BOOST_VOUT_READ,
- 0x10);
-
/* voltage, current slot configuration */
regmap_write(max98927->regmap,
MAX98927_R001E_PCM_TX_CH_SRC_A,
diff --git a/sound/soc/codecs/max98927.h b/sound/soc/codecs/max98927.h
index 9ea8397..98b5f17 100644
--- a/sound/soc/codecs/max98927.h
+++ b/sound/soc/codecs/max98927.h
@@ -250,6 +250,10 @@
#define MAX98927_BROWNOUT_DSP_EN (0x1 << 2)
#define MAX98927_BROWNOUT_DSP_SHIFT (2)

+/* MAX98927_R0086_ENV_TRACK_CTRL */
+#define MAX98927_ENV_TRACKER_EN (0x1 << 0)
+#define MAX98927_ENV_TRACKER_EN_SHIFT (0)
+
/* MAX98927_R0100_SOFT_RESET */
#define MAX98927_SOFT_RESET (0x1 << 0)

--
1.9.1
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