[PATCH v2] ASoC: nau8822: add spk boost and spk btl options

[Benjamin Marty]

These two options are required to use the Speaker output on this codec
to its full potential, when wiring up the Speaker in an BTL configuration.

The Speaker Boost flag is explained in the Datasheet on page 80.
The Speaker BTL flag is explained in the Datasheet on page 78.

Signed-off-by: Benjamin Marty <info at benjaminmarty.ch>
---
 sound/soc/codecs/nau8822.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/sound/soc/codecs/nau8822.c b/sound/soc/codecs/nau8822.c
index 1aef281a9972..812b8254f9a0 100644
--- a/sound/soc/codecs/nau8822.c
+++ b/sound/soc/codecs/nau8822.c
@@ -379,6 +379,12 @@ static const struct snd_kcontrol_new nau8822_snd_controls[] = {
 		NAU8822_REG_DAC_CONTROL, 5, 1, 0),
 	SOC_SINGLE("ADC 128x Oversampling Switch",
 		NAU8822_REG_ADC_CONTROL, 5, 1, 0),
+
+	SOC_SINGLE("Speaker Gain Boost Control",
+		NAU8822_REG_OUTPUT_CONTROL, 2, 1, 0),
+
+	SOC_SINGLE("Speaker BTL Configuration",
+		NAU8822_REG_RIGHT_SPEAKER_CONTROL, 4, 1, 0),
 };
 
 /* LMAIN and RMAIN Mixer */
-- 
2.38.0