ASoC: mchp-i2s-mcc: add driver for I2SC Multi-Channel Controller (b87d37d0) · Commits · 戴 / test

The Inter-IC Sound Controller (I2SMCC) provides a 5-wire, bidirectional, synchronous, digital audio link to external audio devices: I2SMCC_DIN, I2SMCC_DOUT, I2SMCC_WS, I2SMCC_CK, and I2SMCC_MCK pins. The I2SMCC complies with the Inter-IC Sound (I2S) bus specification and supports a Time Division Multiplexed (TDM) interface with external multi-channel audio codecs. The I2SMCC consists of a receiver, a transmitter and a common clock generator that can be enabled separately to provide Master, Slave or Controller modes with receiver and/or transmitter active. DMA Controller channels, separate for the receiver and for the transmitter, allow a continuous high bit rate data transfer without processor intervention to the following: - Audio CODECs in Master, Slave, or Controller mode - Stereo DAC or ADC through a dedicated I2S serial interface - Multi-channel or multiple stereo DACs or ADCs, using the TDM format This IP is embedded in Microchip's new sam9x60 SoC. Signed-off-by:

Codrin Ciubotariu <codrin.ciubotariu@microchip.com> Signed-off-by:

Mark Brown <broonie@kernel.org>

sound/soc/atmel/Kconfig

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Original line number	Diff line number	Diff line
		@@ -109,4 +109,18 @@ config SND_SOC_MIKROE_PROTO
		using I2C over SDA (MPU Data Input) and SCL (MPU Clock Input) pins.
		Both playback and capture are supported.

		config SND_MCHP_SOC_I2S_MCC
		tristate "Microchip ASoC driver for boards using I2S MCC"
		depends on OF && (ARCH_AT91 \|\| COMPILE_TEST)
		select SND_SOC_GENERIC_DMAENGINE_PCM
		select REGMAP_MMIO
		help
		Say Y or M if you want to add support for I2S Multi-Channel ASoC
		driver on the following Microchip platforms:
		- sam9x60

		The I2SMCC complies with the Inter-IC Sound (I2S) bus specification
		and supports a Time Division Multiplexed (TDM) interface with
		external multi-channel audio codecs.

		endif

sound/soc/atmel/Makefile

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Original line number	Diff line number	Diff line
		@@ -4,11 +4,13 @@ snd-soc-atmel-pcm-pdc-objs := atmel-pcm-pdc.o
		snd-soc-atmel-pcm-dma-objs := atmel-pcm-dma.o
		snd-soc-atmel_ssc_dai-objs := atmel_ssc_dai.o
		snd-soc-atmel-i2s-objs := atmel-i2s.o
		snd-soc-mchp-i2s-mcc-objs := mchp-i2s-mcc.o

		obj-$(CONFIG_SND_ATMEL_SOC_PDC) += snd-soc-atmel-pcm-pdc.o
		obj-$(CONFIG_SND_ATMEL_SOC_DMA) += snd-soc-atmel-pcm-dma.o
		obj-$(CONFIG_SND_ATMEL_SOC_SSC) += snd-soc-atmel_ssc_dai.o
		obj-$(CONFIG_SND_ATMEL_SOC_I2S) += snd-soc-atmel-i2s.o
		obj-$(CONFIG_SND_MCHP_SOC_I2S_MCC) += snd-soc-mchp-i2s-mcc.o

		# AT91 Machine Support
		snd-soc-sam9g20-wm8731-objs := sam9g20_wm8731.o

sound/soc/atmel/mchp-i2s-mcc.c

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