ASoC: Add MediaTek MT6660 Speaker Amp Driver

The MT6660 is a boosted BTL class-D amplifier with V/I sensing.
A built-in DC-DC step-up converter is used to provide efficient
power for class-D amplifier with multi-level class-G operation.
The digital audio interface supports I2S, left-justified,
right-justified, TDM and DSP A/B format for audio in with a data
out used for chip information like voltage sense and current
sense, which are able to be monitored via DATAO through proper

Signed-off-by: Jeff Chang <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>

Author: jeffchang-richtek

sound/soc/codecs/Kconfig

@@ -125,6 +125,7 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_ML26124 if I2C
 	select SND_SOC_MT6351 if MTK_PMIC_WRAP
 	select SND_SOC_MT6358 if MTK_PMIC_WRAP
+	select SND_SOC_MT6660 if I2C
 	select SND_SOC_NAU8540 if I2C
 	select SND_SOC_NAU8810 if I2C
 	select SND_SOC_NAU8822 if I2C
@@ -1573,6 +1574,15 @@ config SND_SOC_MT6358
 	  Enable support for the platform which uses MT6358 as
 	  external codec device.
 
+config SND_SOC_MT6660
+	tristate "Mediatek MT6660 Speaker Amplifier"
+	depends on I2C
+	help
+	  MediaTek MT6660 is a smart power amplifier which contain
+	  speaker protection, multi-band DRC, equalizer functions.
+	  Select N if you don't have MT6660 on board.
+	  Select M to build this as module.
+
 config SND_SOC_NAU8540
        tristate "Nuvoton Technology Corporation NAU85L40 CODEC"
        depends on I2C

sound/soc/codecs/Makefile

@@ -123,6 +123,7 @@ snd-soc-msm8916-analog-objs := msm8916-wcd-analog.o
 snd-soc-msm8916-digital-objs := msm8916-wcd-digital.o
 snd-soc-mt6351-objs := mt6351.o
 snd-soc-mt6358-objs := mt6358.o
+snd-soc-mt6660-objs := mt6660.o
 snd-soc-nau8540-objs := nau8540.o
 snd-soc-nau8810-objs := nau8810.o
 snd-soc-nau8822-objs := nau8822.o
@@ -419,6 +420,7 @@ obj-$(CONFIG_SND_SOC_MSM8916_WCD_ANALOG) +=snd-soc-msm8916-analog.o
 obj-$(CONFIG_SND_SOC_MSM8916_WCD_DIGITAL) +=snd-soc-msm8916-digital.o
 obj-$(CONFIG_SND_SOC_MT6351)	+= snd-soc-mt6351.o
 obj-$(CONFIG_SND_SOC_MT6358)	+= snd-soc-mt6358.o
+obj-$(CONFIG_SND_SOC_MT6660)	+= snd-soc-mt6660.o
 obj-$(CONFIG_SND_SOC_NAU8540)   += snd-soc-nau8540.o
 obj-$(CONFIG_SND_SOC_NAU8810)   += snd-soc-nau8810.o
 obj-$(CONFIG_SND_SOC_NAU8822)   += snd-soc-nau8822.o