[26.04_linux-nvidia-bos] N1x audio: MediaTek mt8901 SoundWire/ASoC/SOF stack

arch/arm64/configs/defconfig

@@ -1112,6 +1112,7 @@ CONFIG_SND_SOC_SOF_OF=m
 CONFIG_SND_SOC_SOF_MTK_TOPLEVEL=y
 CONFIG_SND_SOC_SOF_MT8186=m
 CONFIG_SND_SOC_SOF_MT8195=m
+CONFIG_SND_SOC_SOF_MT8901=m
 CONFIG_SND_SUN8I_CODEC=m
 CONFIG_SND_SUN8I_CODEC_ANALOG=m
 CONFIG_SND_SUN50I_CODEC_ANALOG=m

debian.nvidia-bos/config/annotations

@@ -279,6 +279,27 @@ CONFIG_SENSORS_SPD5118                          note<'Enable SPD5118 temperature
 CONFIG_SFC_CXL                                  policy<{'amd64': 'n', 'arm64': 'n'}>
 CONFIG_SFC_CXL                                  note<'Solarflare SFC9100-family CXL Type-2 device support; not needed for NVIDIA platforms'>
 
+CONFIG_SND_SOC_MT8901                           policy<{'arm64': 'm'}>
+CONFIG_SND_SOC_MT8901                           note<'MediaTek MT8901 AFE platform driver (N1x audio).'>
+
+CONFIG_SND_SOC_MT8901_LEGACY_SDW_MACH           policy<{'arm64': 'm'}>
+CONFIG_SND_SOC_MT8901_LEGACY_SDW_MACH           note<'MT8901 SoundWire machine driver (N1x audio).'>
+
+CONFIG_SND_SOC_MTK_SDCA                         policy<{'arm64': 'm'}>
+CONFIG_SND_SOC_MTK_SDCA                         note<'SDCA support for codecs on the MediaTek SoundWire master (N1x audio).'>
+
+CONFIG_SND_SOC_SDCA                             policy<{'amd64': 'm', 'arm64': 'm'}>
+CONFIG_SND_SOC_SDCA                             note<'SDCA framework, selected by SND_SOC_MTK_SDCA; the SDCA_* and SDW_UTILS lines below are its derived symbols.'>
+
+CONFIG_SND_SOC_SOF_MT8901                       policy<{'arm64': 'm'}>
+CONFIG_SND_SOC_SOF_MT8901                       note<'MediaTek MT8901 ACPI ADSP power-management driver (N1x audio).'>
+
+CONFIG_SOUNDWIRE_MTK                            policy<{'arm64': 'm'}>
+CONFIG_SOUNDWIRE_MTK                            note<'MediaTek SoundWire manager (N1x audio).'>
+
+CONFIG_SOUNDWIRE_MTK_MT8901_CLK                 policy<{'arm64': 'y'}>
+CONFIG_SOUNDWIRE_MTK_MT8901_CLK                 note<'MT8901 SoundWire clock/power control; selected by the machine driver.'>
+
 CONFIG_SPI_TEGRA210_QUAD                        policy<{'arm64': 'y'}>
 CONFIG_SPI_TEGRA210_QUAD                        note<'Ensures the TPM is available before the IMA driver initializes'>
 
@@ -306,7 +327,6 @@ CONFIG_VFIO_CXL_CORE                            note<'Enable VFIO CXL core for C
 CONFIG_VFIO_IOMMU_TYPE1                         policy<{'amd64': 'm', 'arm64': '-'}>
 CONFIG_VFIO_IOMMU_TYPE1                         note<'LP: #2095028'>
 
-
 # ---- Annotations without notes ----
 
 CONFIG_ARCH_HAS_CPU_RESCTRL                     policy<{'amd64': 'y', 'arm64': 'y'}>
@@ -317,3 +337,9 @@ CONFIG_MTD_NAND_CORE                            policy<{'amd64': 'm', 'arm64': '
 CONFIG_PROC_CPU_RESCTRL                         policy<{'amd64': 'y', 'arm64': 'y'}>
 CONFIG_RESCTRL_IOMMU                            policy<{'arm64': 'y'}>
 CONFIG_RESCTRL_RMID_DEPENDS_ON_CLOSID           policy<{'arm64': 'y'}>
+CONFIG_SND_SOC_SDCA_CLASS                       policy<{'amd64': 'm', 'arm64': 'n'}>
+CONFIG_SND_SOC_SDCA_FDL                         policy<{'amd64': 'y', 'arm64': 'y'}>
+CONFIG_SND_SOC_SDCA_HID                         policy<{'amd64': 'y', 'arm64': 'y'}>
+CONFIG_SND_SOC_SDCA_IRQ                         policy<{'amd64': 'y', 'arm64': 'y'}>
+CONFIG_SND_SOC_SDW_UTILS                        policy<{'amd64': 'm', 'arm64': 'm'}>
+CONFIG_SND_SOC_TAS2783_SDW                      policy<{'amd64': 'm', 'arm64': 'n'}>

drivers/soundwire/Kconfig

@@ -57,6 +57,28 @@ config SOUNDWIRE_QCOM
 	  enable this config option to get the SoundWire support for that
 	  device
 
+config SOUNDWIRE_MTK
+	tristate "MediaTek SoundWire Master driver"
+	select SOUNDWIRE_GENERIC_ALLOCATION
+	depends on SND_SOC && ACPI
+	depends on PINCTRL_MTK_PARIS
+	select SND_SOC_ACPI
+	help
+	  SoundWire MediaTek Master driver.
+	  If you have an MediaTek platform which has a SoundWire Master then
+	  enable this config option to get the SoundWire support for that
+	  device.
+
+config SOUNDWIRE_MTK_MT8901_CLK
+	bool "MediaTek MT8901 clock control for SoundWire"
+	depends on SOUNDWIRE_MTK
+	depends on MTK_POWER_WRAP
+	help
+	  This enables the MT8901 clock and power control for the MediaTek
+	  SoundWire Master driver.
+	  This symbol is normally selected automatically by the MT8901
+	  SoundWire machine driver and does not need to be chosen directly.
+
 config SOUNDWIRE_GENERIC_ALLOCATION
 	tristate
 

drivers/soundwire/Makefile

@@ -36,3 +36,6 @@ obj-$(CONFIG_SOUNDWIRE_INTEL) += soundwire-intel.o
 #Qualcomm driver
 soundwire-qcom-y :=	qcom.o
 obj-$(CONFIG_SOUNDWIRE_QCOM) += soundwire-qcom.o
+
+#MediaTek driver
+obj-$(CONFIG_SOUNDWIRE_MTK) += mediatek/

drivers/soundwire/mediatek/Makefile

@@ -0,0 +1,11 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Makefile for MediaTek SoundWire driver
+#
+
+# for the soundwire core's internal bus.h (sdw_clear_slave_status)
+ccflags-y := -I$(srctree)/drivers/soundwire
+
+soundwire-mtk-y := mtk-sdw.o mtk-sdw-top.o mtk-sdw-core.o mtk-sdw-mach.o mtk-sdw-chipglue.o
+soundwire-mtk-$(CONFIG_SOUNDWIRE_MTK_MT8901_CLK) += mt8901-afe-clk.o
+obj-$(CONFIG_SOUNDWIRE_MTK) += soundwire-mtk.o