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authorNiklas Cassel <cassel@kernel.org>2026-09-16 15:00:32 +0200
committerNiklas Cassel <cassel@kernel.org>2026-09-16 16:18:00 +0200
commit8d836581f9b1f57ceaa2b47654754ef1260b410b (patch)
tree1dbd4d0dfb99c2e238356cbe947e5b0be3e3a571 /sound/soc/amd/ps
downloadlinux-stable-8d836581f9b1f57ceaa2b47654754ef1260b410b.tar.gz
linux-stable-8d836581f9b1f57ceaa2b47654754ef1260b410b.zip
ata: libata-scsi: fix ata_dsm_trim_pages() kernel-docgrafted
make htmldocs fails with: Documentation/driver-api/libata:604: ./drivers/ata/libata-scsi.c:2301: ERROR: Unexpected indentation. [docutils] The Return: section of ata_dsm_trim_pages() ends its first sentence with a colon and continues with an indented bullet list. reStructuredText requires a blank line before an indented block, so docutils chokes on the list. Simply adding the missing blank line does not work either: Return: is a kernel-doc "special section", which is terminated by the first blank line, so the bullet list would end up in the Description section, detached from the sentence introducing it. Spell the two bounds out as prose instead, so that the Return: section stays self-contained. Documentation-only change. Fixes: e64e6b5dc867 ("ata: libata-scsi: scale DSM TRIM payload by MAX PAGES PER DSM COMMAND") Reported-by: Thomas Huth <thuth@redhat.com> Closes: https://lore.kernel.org/linux-ide/b0a0b8e8-cc4f-4c7b-8bc5-fee0712d405a@redhat.com/ Reviewed-by: Damien Le Moal <dlemoal@kernel.org> Reviewed-by: Thomas Huth <thuth@redhat.com> Link: https://lore.kernel.org/r/20260916130031.29990-2-cassel@kernel.org Signed-off-by: Niklas Cassel <cassel@kernel.org>
Diffstat (limited to 'sound/soc/amd/ps')
-rw-r--r--sound/soc/amd/ps/Makefile11
-rw-r--r--sound/soc/amd/ps/acp63.h448
-rw-r--r--sound/soc/amd/ps/pci-ps.c785
-rw-r--r--sound/soc/amd/ps/ps-common.c493
-rw-r--r--sound/soc/amd/ps/ps-mach.c78
-rw-r--r--sound/soc/amd/ps/ps-pdm-dma.c464
-rw-r--r--sound/soc/amd/ps/ps-sdw-dma.c804
7 files changed, 3083 insertions, 0 deletions
diff --git a/sound/soc/amd/ps/Makefile b/sound/soc/amd/ps/Makefile
new file mode 100644
index 000000000..778ee4726
--- /dev/null
+++ b/sound/soc/amd/ps/Makefile
@@ -0,0 +1,11 @@
+# SPDX-License-Identifier: GPL-2.0-only
+# Pink Sardine platform Support
+snd-pci-ps-y := pci-ps.o ps-common.o
+snd-ps-pdm-dma-y := ps-pdm-dma.o
+snd-soc-ps-mach-y := ps-mach.o
+snd-ps-sdw-dma-y := ps-sdw-dma.o
+
+obj-$(CONFIG_SND_SOC_AMD_PS) += snd-pci-ps.o
+obj-$(CONFIG_SND_SOC_AMD_PS) += snd-ps-pdm-dma.o
+obj-$(CONFIG_SND_SOC_AMD_PS) += snd-ps-sdw-dma.o
+obj-$(CONFIG_SND_SOC_AMD_PS_MACH) += snd-soc-ps-mach.o
diff --git a/sound/soc/amd/ps/acp63.h b/sound/soc/amd/ps/acp63.h
new file mode 100644
index 000000000..62cb6bef1
--- /dev/null
+++ b/sound/soc/amd/ps/acp63.h
@@ -0,0 +1,448 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * AMD Common ACP header file for ACP6.3, ACP7.0 & ACP7.1 platforms
+ *
+ * Copyright (C) 2022, 2023, 2025 Advanced Micro Devices, Inc. All rights reserved.
+ */
+
+#include <linux/soundwire/sdw_amd.h>
+#include <sound/acp63_chip_offset_byte.h>
+
+#define ACP_DEVICE_ID 0x15E2
+#define ACP63_REG_START 0x1240000
+#define ACP63_REG_END 0x125C000
+#define ACP63_PCI_REV 0x63
+#define ACP70_PCI_REV 0x70
+#define ACP71_PCI_REV 0x71
+#define ACP72_PCI_REV 0x72
+
+#define ACP_SOFT_RESET_SOFTRESET_AUDDONE_MASK 0x00010001
+#define ACP63_PGFSM_CNTL_POWER_ON_MASK 1
+#define ACP63_PGFSM_CNTL_POWER_OFF_MASK 0
+#define ACP63_PGFSM_STATUS_MASK 3
+#define ACP63_POWERED_ON 0
+#define ACP63_POWER_ON_IN_PROGRESS 1
+#define ACP63_POWERED_OFF 2
+#define ACP63_POWER_OFF_IN_PROGRESS 3
+
+#define ACP_ERROR_MASK 0x20000000
+#define ACP_EXT_INTR_STAT_CLEAR_MASK 0xFFFFFFFF
+#define PDM_DMA_STAT 0x10
+
+#define PDM_DMA_INTR_MASK 0x10000
+#define ACP_ERROR_STAT 29
+#define PDM_DECIMATION_FACTOR 2
+#define ACP_PDM_CLK_FREQ_MASK 7
+#define ACP_WOV_GAIN_CONTROL GENMASK(4, 3)
+#define ACP_PDM_ENABLE 1
+#define ACP_PDM_DISABLE 0
+#define ACP_PDM_DMA_EN_STATUS 2
+#define TWO_CH 2
+#define DELAY_US 5
+#define ACP_COUNTER 20000
+
+#define ACP_SRAM_PTE_OFFSET 0x03800000
+#define PAGE_SIZE_4K_ENABLE 2
+#define PDM_PTE_OFFSET 0
+#define PDM_MEM_WINDOW_START 0x4000000
+
+#define CAPTURE_MIN_NUM_PERIODS 4
+#define CAPTURE_MAX_NUM_PERIODS 4
+#define CAPTURE_MAX_PERIOD_SIZE 8192
+#define CAPTURE_MIN_PERIOD_SIZE 4096
+
+#define MAX_BUFFER (CAPTURE_MAX_PERIOD_SIZE * CAPTURE_MAX_NUM_PERIODS)
+#define MIN_BUFFER MAX_BUFFER
+
+/* time in ms for runtime suspend delay */
+#define ACP_SUSPEND_DELAY_MS 2000
+
+#define ACP_DMIC_DEV 2
+
+#define ACP63_DMIC_ADDR 2
+#define ACP63_SDW_ADDR 5
+#define AMD_SDW_MAX_MANAGERS 2
+
+/* time in ms for acp timeout */
+#define ACP63_TIMEOUT 500
+
+#define ACP_SDW0_STAT BIT(21)
+#define ACP_SDW1_STAT BIT(2)
+#define ACP_ERROR_IRQ BIT(29)
+
+#define ACP_AUDIO0_TX_THRESHOLD 0x1c
+#define ACP_AUDIO1_TX_THRESHOLD 0x1a
+#define ACP_AUDIO2_TX_THRESHOLD 0x18
+#define ACP_AUDIO0_RX_THRESHOLD 0x1b
+#define ACP_AUDIO1_RX_THRESHOLD 0x19
+#define ACP_AUDIO2_RX_THRESHOLD 0x17
+#define ACP63_P1_AUDIO1_TX_THRESHOLD BIT(6)
+#define ACP63_P1_AUDIO1_RX_THRESHOLD BIT(5)
+#define ACP63_SDW_DMA_IRQ_MASK 0x1F800000
+#define ACP63_P1_SDW_DMA_IRQ_MASK 0x60
+#define ACP63_SDW0_DMA_MAX_STREAMS 6
+#define ACP63_SDW1_DMA_MAX_STREAMS 2
+#define ACP63_P1_AUDIO_TX_THRESHOLD 6
+
+/*
+ * Below entries describes SDW0 instance DMA stream id and DMA irq bit mapping
+ * in ACP_EXTENAL_INTR_CNTL register.
+ * Stream id IRQ Bit
+ * 0 (SDW0_AUDIO0_TX) 28
+ * 1 (SDW0_AUDIO1_TX) 26
+ * 2 (SDW0_AUDIO2_TX) 24
+ * 3 (SDW0_AUDIO0_RX) 27
+ * 4 (SDW0_AUDIO1_RX) 25
+ * 5 (SDW0_AUDIO2_RX) 23
+ */
+#define ACP63_SDW0_DMA_TX_IRQ_MASK(i) (ACP_AUDIO0_TX_THRESHOLD - (2 * (i)))
+#define ACP63_SDW0_DMA_RX_IRQ_MASK(i) (ACP_AUDIO0_RX_THRESHOLD - (2 * ((i) - 3)))
+
+/*
+ * Below entries describes SDW1 instance DMA stream id and DMA irq bit mapping
+ * in ACP_EXTENAL_INTR_CNTL1 register.
+ * Stream id IRQ Bit
+ * 0 (SDW1_AUDIO1_TX) 6
+ * 1 (SDW1_AUDIO1_RX) 5
+ */
+#define ACP63_SDW1_DMA_IRQ_MASK(i) (ACP63_P1_AUDIO_TX_THRESHOLD - (i))
+
+#define ACP_DELAY_US 5
+#define ACP_SDW_RING_BUFF_ADDR_OFFSET (128 * 1024)
+#define SDW0_MEM_WINDOW_START 0x4800000
+#define ACP_SDW_SRAM_PTE_OFFSET 0x03800400
+#define SDW0_PTE_OFFSET 0x400
+#define SDW_FIFO_SIZE 0x100
+#define SDW_DMA_SIZE 0x40
+#define ACP_SDW0_FIFO_OFFSET 0x100
+#define ACP_SDW_PTE_OFFSET 0x100
+#define SDW_FIFO_OFFSET 0x100
+#define SDW_PTE_OFFSET(i) (SDW0_PTE_OFFSET + ((i) * 0x600))
+#define ACP_SDW_FIFO_OFFSET(i) (ACP_SDW0_FIFO_OFFSET + ((i) * 0x500))
+#define SDW_MEM_WINDOW_START(i) (SDW0_MEM_WINDOW_START + ((i) * 0xC0000))
+
+#define SDW_PLAYBACK_MIN_NUM_PERIODS 2
+#define SDW_PLAYBACK_MAX_NUM_PERIODS 8
+#define SDW_PLAYBACK_MAX_PERIOD_SIZE 8192
+#define SDW_PLAYBACK_MIN_PERIOD_SIZE 1024
+#define SDW_CAPTURE_MIN_NUM_PERIODS 2
+#define SDW_CAPTURE_MAX_NUM_PERIODS 8
+#define SDW_CAPTURE_MAX_PERIOD_SIZE 8192
+#define SDW_CAPTURE_MIN_PERIOD_SIZE 1024
+
+#define SDW_MAX_BUFFER (SDW_PLAYBACK_MAX_PERIOD_SIZE * SDW_PLAYBACK_MAX_NUM_PERIODS)
+#define SDW_MIN_BUFFER SDW_MAX_BUFFER
+
+#define ACP_HW_OPS(acp_data, cb) ((acp_data)->hw_ops->cb)
+
+#define ACP70_PGFSM_CNTL_POWER_ON_MASK 0x1F
+#define ACP70_PGFSM_CNTL_POWER_OFF_MASK 0
+#define ACP70_PGFSM_STATUS_MASK 0xFF
+#define ACP70_TIMEOUT 2000
+#define ACP70_SDW_HOST_WAKE_MASK 0x0C00000
+#define ACP70_SDW0_HOST_WAKE_STAT BIT(24)
+#define ACP70_SDW1_HOST_WAKE_STAT BIT(25)
+#define ACP70_SDW0_PME_STAT BIT(26)
+#define ACP70_SDW1_PME_STAT BIT(27)
+
+#define ACP70_SDW0_DMA_MAX_STREAMS 6
+#define ACP70_SDW1_DMA_MAX_STREAMS ACP70_SDW0_DMA_MAX_STREAMS
+#define ACP70_SDW_DMA_IRQ_MASK 0x1F800000
+#define ACP70_P1_SDW_DMA_IRQ_MASK 0x1F8
+
+#define ACP70_P1_AUDIO0_TX_THRESHOLD 0x8
+#define ACP70_P1_AUDIO1_TX_THRESHOLD 0x6
+#define ACP70_P1_AUDIO2_TX_THRESHOLD 0x4
+#define ACP70_P1_AUDIO0_RX_THRESHOLD 0x7
+#define ACP70_P1_AUDIO1_RX_THRESHOLD 0x5
+#define ACP70_P1_AUDIO2_RX_THRESHOLD 0x3
+
+#define ACP70_SDW0_DMA_TX_IRQ_MASK(i) (ACP_AUDIO0_TX_THRESHOLD - (2 * (i)))
+#define ACP70_SDW0_DMA_RX_IRQ_MASK(i) (ACP_AUDIO0_RX_THRESHOLD - (2 * ((i) - 3)))
+
+/*
+ * Below entries describes SDW1 instance DMA stream id and DMA irq bit mapping
+ * in ACP_EXTENAL_INTR_CNTL1 register for ACP70/ACP71 platforms
+ * Stream id IRQ Bit
+ * 0 (SDW1_AUDIO0_TX) 8
+ * 1 (SDW1_AUDIO1_TX) 6
+ * 2 (SDW1_AUDIO2_TX) 4
+ * 3 (SDW1_AUDIO0_RX) 7
+ * 4 (SDW1_AUDIO1_RX) 5
+ * 5 (SDW1_AUDIO2_RX) 3
+ */
+#define ACP70_SDW1_DMA_TX_IRQ_MASK(i) (ACP70_P1_AUDIO0_TX_THRESHOLD - (2 * (i)))
+#define ACP70_SDW1_DMA_RX_IRQ_MASK(i) (ACP70_P1_AUDIO0_RX_THRESHOLD - (2 * ((i) - 3)))
+
+#define ACP70_SW0_AUDIO0_TX_EN ACP_SW0_AUDIO0_TX_EN
+#define ACP70_SW0_AUDIO1_TX_EN ACP_SW0_AUDIO1_TX_EN
+#define ACP70_SW0_AUDIO2_TX_EN ACP_SW0_AUDIO2_TX_EN
+#define ACP70_SW0_AUDIO0_RX_EN ACP_SW0_AUDIO0_RX_EN
+#define ACP70_SW0_AUDIO1_RX_EN ACP_SW0_AUDIO1_RX_EN
+#define ACP70_SW0_AUDIO2_RX_EN ACP_SW0_AUDIO2_RX_EN
+
+#define ACP70_SW1_AUDIO0_TX_EN 0x0003C10
+#define ACP70_SW1_AUDIO1_TX_EN 0x0003C50
+#define ACP70_SW1_AUDIO2_TX_EN 0x0003C6C
+#define ACP70_SW1_AUDIO0_RX_EN 0x0003C88
+#define ACP70_SW1_AUDIO1_RX_EN 0x0003D28
+#define ACP70_SW1_AUDIO2_RX_EN 0x0003D44
+
+enum acp_config {
+ ACP_CONFIG_0 = 0,
+ ACP_CONFIG_1,
+ ACP_CONFIG_2,
+ ACP_CONFIG_3,
+ ACP_CONFIG_4,
+ ACP_CONFIG_5,
+ ACP_CONFIG_6,
+ ACP_CONFIG_7,
+ ACP_CONFIG_8,
+ ACP_CONFIG_9,
+ ACP_CONFIG_10,
+ ACP_CONFIG_11,
+ ACP_CONFIG_12,
+ ACP_CONFIG_13,
+ ACP_CONFIG_14,
+ ACP_CONFIG_15,
+ ACP_CONFIG_16,
+ ACP_CONFIG_17,
+ ACP_CONFIG_18,
+ ACP_CONFIG_19,
+ ACP_CONFIG_20,
+};
+
+enum amd_acp63_sdw0_channel {
+ ACP63_SDW0_AUDIO0_TX = 0,
+ ACP63_SDW0_AUDIO1_TX,
+ ACP63_SDW0_AUDIO2_TX,
+ ACP63_SDW0_AUDIO0_RX,
+ ACP63_SDW0_AUDIO1_RX,
+ ACP63_SDW0_AUDIO2_RX,
+};
+
+enum amd_acp63_sdw1_channel {
+ ACP63_SDW1_AUDIO1_TX,
+ ACP63_SDW1_AUDIO1_RX,
+};
+
+enum amd_acp70_sdw_channel {
+ ACP70_SDW_AUDIO0_TX = 0,
+ ACP70_SDW_AUDIO1_TX,
+ ACP70_SDW_AUDIO2_TX,
+ ACP70_SDW_AUDIO0_RX,
+ ACP70_SDW_AUDIO1_RX,
+ ACP70_SDW_AUDIO2_RX,
+};
+
+struct pdm_stream_instance {
+ u16 num_pages;
+ u16 channels;
+ dma_addr_t dma_addr;
+ u64 bytescount;
+ void __iomem *acp63_base;
+};
+
+struct pdm_dev_data {
+ u32 pdm_irq;
+ void __iomem *acp63_base;
+ struct mutex *acp_lock;
+ struct snd_pcm_substream *capture_stream;
+};
+
+struct sdw_dma_dev_data {
+ void __iomem *acp_base;
+ struct mutex *acp_lock; /* used to protect acp common register access */
+ u32 acp_rev;
+ struct snd_pcm_substream *acp63_sdw0_dma_stream[ACP63_SDW0_DMA_MAX_STREAMS];
+ struct snd_pcm_substream *acp63_sdw1_dma_stream[ACP63_SDW1_DMA_MAX_STREAMS];
+ struct snd_pcm_substream *acp70_sdw0_dma_stream[ACP70_SDW0_DMA_MAX_STREAMS];
+ struct snd_pcm_substream *acp70_sdw1_dma_stream[ACP70_SDW1_DMA_MAX_STREAMS];
+};
+
+struct acp_sdw_dma_stream {
+ u16 num_pages;
+ u16 channels;
+ u32 stream_id;
+ u32 instance;
+ dma_addr_t dma_addr;
+ u64 bytescount;
+};
+
+union acp_sdw_dma_count {
+ struct {
+ u32 low;
+ u32 high;
+ } bcount;
+ u64 bytescount;
+};
+
+struct sdw_dma_ring_buf_reg {
+ u32 reg_dma_size;
+ u32 reg_fifo_addr;
+ u32 reg_fifo_size;
+ u32 reg_ring_buf_size;
+ u32 reg_ring_buf_addr;
+ u32 water_mark_size_reg;
+ u32 pos_low_reg;
+ u32 pos_high_reg;
+};
+
+struct acp63_dev_data;
+
+/**
+ * struct acp_hw_ops - ACP PCI driver platform specific ops
+ * @acp_init: ACP initialization
+ * @acp_deinit: ACP de-initialization
+ * @acp_get_config: function to read the acp pin configuration
+ * @acp_sdw_dma_irq_thread: ACP SoundWire DMA interrupt thread
+ * acp_suspend: ACP system level suspend callback
+ * acp_resume: ACP system level resume callback
+ * acp_suspend_runtime: ACP runtime suspend callback
+ * acp_resume_runtime: ACP runtime resume callback
+ */
+struct acp_hw_ops {
+ int (*acp_init)(void __iomem *acp_base, struct device *dev);
+ int (*acp_deinit)(void __iomem *acp_base, struct device *dev);
+ void (*acp_get_config)(struct pci_dev *pci, struct acp63_dev_data *acp_data);
+ void (*acp_sdw_dma_irq_thread)(struct acp63_dev_data *acp_data);
+ int (*acp_suspend)(struct device *dev);
+ int (*acp_resume)(struct device *dev);
+ int (*acp_suspend_runtime)(struct device *dev);
+ int (*acp_resume_runtime)(struct device *dev);
+};
+
+/**
+ * struct acp63_dev_data - acp pci driver context
+ * @acp63_base: acp mmio base
+ * @res: resource
+ * @hw_ops: ACP pci driver platform-specific ops
+ * @pdm_dev: ACP PDM controller platform device
+ * @dmic_codec: platform device for DMIC Codec
+ * sdw_dma_dev: platform device for SoundWire DMA controller
+ * @mach_dev: platform device for machine driver to support ACP PDM/SoundWire configuration
+ * @acp_lock: used to protect acp common registers
+ * @info: SoundWire AMD information found in ACPI tables
+ * @sdw: SoundWire context for all SoundWire manager instances
+ * @machine: ACPI machines for SoundWire interface
+ * @is_sdw_dev: flag set to true when any SoundWire manager instances are available
+ * @is_pdm_dev: flag set to true when ACP PDM controller exists
+ * @is_pdm_config: flat set to true when PDM configuration is selected from BIOS
+ * @is_sdw_config: flag set to true when SDW configuration is selected from BIOS
+ * @sdw_en_stat: flag set to true when any one of the SoundWire manager instance is enabled
+ * @acp70_sdw0_wake_event: flag set to true when wake irq asserted for SW0 instance
+ * @acp70_sdw1_wake_event: flag set to true when wake irq asserted for SW1 instance
+ * @addr: pci ioremap address
+ * @reg_range: ACP reigister range
+ * @acp_rev: ACP PCI revision id
+ * @acp_sw_pad_keeper_en: store acp SoundWire pad keeper enable register value
+ * @acp_pad_pulldown_ctrl: store acp pad pulldown control register value
+ * @acp63_sdw0-dma_intr_stat: DMA interrupt status array for ACP6.3 platform SoundWire
+ * manager-SW0 instance
+ * @acp63_sdw_dma_intr_stat: DMA interrupt status array for ACP6.3 platform SoundWire
+ * manager-SW1 instance
+ * @acp70_sdw0-dma_intr_stat: DMA interrupt status array for ACP7.0 platform SoundWire
+ * manager-SW0 instance
+ * @acp70_sdw_dma_intr_stat: DMA interrupt status array for ACP7.0 platform SoundWire
+ * manager-SW1 instance
+ */
+
+struct acp63_dev_data {
+ void __iomem *acp63_base;
+ struct resource *res;
+ struct acp_hw_ops *hw_ops;
+ struct platform_device *pdm_dev;
+ struct platform_device *dmic_codec_dev;
+ struct platform_device *sdw_dma_dev;
+ struct platform_device *mach_dev;
+ struct mutex acp_lock; /* protect shared registers */
+ struct sdw_amd_acpi_info info;
+ /* sdw context allocated by SoundWire driver */
+ struct sdw_amd_ctx *sdw;
+ struct snd_soc_acpi_mach *machines;
+ bool is_sdw_dev;
+ bool is_pdm_dev;
+ bool is_pdm_config;
+ bool is_sdw_config;
+ bool sdw_en_stat;
+ bool acp70_sdw0_wake_event;
+ bool acp70_sdw1_wake_event;
+ u32 addr;
+ u32 reg_range;
+ u32 acp_rev;
+ u32 subsystem_vendor;
+ u32 subsystem_device;
+ u32 acp_sw_pad_keeper_en;
+ u32 acp_pad_pulldown_ctrl;
+ u16 acp63_sdw0_dma_intr_stat[ACP63_SDW0_DMA_MAX_STREAMS];
+ u16 acp63_sdw1_dma_intr_stat[ACP63_SDW1_DMA_MAX_STREAMS];
+ u16 acp70_sdw0_dma_intr_stat[ACP70_SDW0_DMA_MAX_STREAMS];
+ u16 acp70_sdw1_dma_intr_stat[ACP70_SDW1_DMA_MAX_STREAMS];
+};
+
+void acp63_hw_init_ops(struct acp_hw_ops *hw_ops);
+void acp70_hw_init_ops(struct acp_hw_ops *hw_ops);
+
+static inline int acp_hw_init(struct acp63_dev_data *adata, struct device *dev)
+{
+ if (adata && adata->hw_ops && adata->hw_ops->acp_init)
+ return ACP_HW_OPS(adata, acp_init)(adata->acp63_base, dev);
+ return -EOPNOTSUPP;
+}
+
+static inline int acp_hw_deinit(struct acp63_dev_data *adata, struct device *dev)
+{
+ if (adata && adata->hw_ops && adata->hw_ops->acp_deinit)
+ return ACP_HW_OPS(adata, acp_deinit)(adata->acp63_base, dev);
+ return -EOPNOTSUPP;
+}
+
+static inline void acp_hw_get_config(struct pci_dev *pci, struct acp63_dev_data *adata)
+{
+ if (adata && adata->hw_ops && adata->hw_ops->acp_get_config)
+ ACP_HW_OPS(adata, acp_get_config)(pci, adata);
+}
+
+static inline void acp_hw_sdw_dma_irq_thread(struct acp63_dev_data *adata)
+{
+ if (adata && adata->hw_ops && adata->hw_ops->acp_sdw_dma_irq_thread)
+ ACP_HW_OPS(adata, acp_sdw_dma_irq_thread)(adata);
+}
+
+static inline int acp_hw_suspend(struct device *dev)
+{
+ struct acp63_dev_data *adata = dev_get_drvdata(dev);
+
+ if (adata && adata->hw_ops && adata->hw_ops->acp_suspend)
+ return ACP_HW_OPS(adata, acp_suspend)(dev);
+ return -EOPNOTSUPP;
+}
+
+static inline int acp_hw_resume(struct device *dev)
+{
+ struct acp63_dev_data *adata = dev_get_drvdata(dev);
+
+ if (adata && adata->hw_ops && adata->hw_ops->acp_resume)
+ return ACP_HW_OPS(adata, acp_resume)(dev);
+ return -EOPNOTSUPP;
+}
+
+static inline int acp_hw_suspend_runtime(struct device *dev)
+{
+ struct acp63_dev_data *adata = dev_get_drvdata(dev);
+
+ if (adata && adata->hw_ops && adata->hw_ops->acp_suspend_runtime)
+ return ACP_HW_OPS(adata, acp_suspend_runtime)(dev);
+ return -EOPNOTSUPP;
+}
+
+static inline int acp_hw_runtime_resume(struct device *dev)
+{
+ struct acp63_dev_data *adata = dev_get_drvdata(dev);
+
+ if (adata && adata->hw_ops && adata->hw_ops->acp_resume_runtime)
+ return ACP_HW_OPS(adata, acp_resume_runtime)(dev);
+ return -EOPNOTSUPP;
+}
+
+int snd_amd_acp_find_config(struct pci_dev *pci);
diff --git a/sound/soc/amd/ps/pci-ps.c b/sound/soc/amd/ps/pci-ps.c
new file mode 100644
index 000000000..729f9aaba
--- /dev/null
+++ b/sound/soc/amd/ps/pci-ps.c
@@ -0,0 +1,785 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * AMD common ACP PCI driver for ACP6.3, ACP7.0 & ACP7.1 platforms.
+ *
+ * Copyright 2022, 2025 Advanced Micro Devices, Inc.
+ */
+
+#include <linux/pci.h>
+#include <linux/bitops.h>
+#include <linux/module.h>
+#include <linux/io.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/acpi.h>
+#include <linux/interrupt.h>
+#include <sound/pcm_params.h>
+#include <linux/pm_runtime.h>
+#include <linux/iopoll.h>
+#include <linux/soundwire/sdw_amd.h>
+#include "../mach-config.h"
+
+#include "acp63.h"
+
+static void handle_acp70_sdw_wake_event(struct acp63_dev_data *adata)
+{
+ struct amd_sdw_manager *amd_manager;
+
+ if (adata->acp70_sdw0_wake_event) {
+ amd_manager = dev_get_drvdata(&adata->sdw->pdev[0]->dev);
+ if (amd_manager)
+ pm_request_resume(amd_manager->dev);
+ adata->acp70_sdw0_wake_event = 0;
+ }
+
+ if (adata->acp70_sdw1_wake_event) {
+ amd_manager = dev_get_drvdata(&adata->sdw->pdev[1]->dev);
+ if (amd_manager)
+ pm_request_resume(amd_manager->dev);
+ adata->acp70_sdw1_wake_event = 0;
+ }
+}
+
+static short int check_and_handle_acp70_sdw_wake_irq(struct acp63_dev_data *adata)
+{
+ u32 ext_intr_stat1;
+ int irq_flag = 0;
+ bool sdw_wake_irq = false;
+
+ ext_intr_stat1 = readl(adata->acp63_base + ACP_EXTERNAL_INTR_STAT1);
+ if (ext_intr_stat1 & ACP70_SDW0_HOST_WAKE_STAT) {
+ writel(ACP70_SDW0_HOST_WAKE_STAT, adata->acp63_base + ACP_EXTERNAL_INTR_STAT1);
+ adata->acp70_sdw0_wake_event = true;
+ sdw_wake_irq = true;
+ }
+
+ if (ext_intr_stat1 & ACP70_SDW1_HOST_WAKE_STAT) {
+ writel(ACP70_SDW1_HOST_WAKE_STAT, adata->acp63_base + ACP_EXTERNAL_INTR_STAT1);
+ adata->acp70_sdw1_wake_event = true;
+ sdw_wake_irq = true;
+ }
+
+ if (ext_intr_stat1 & ACP70_SDW0_PME_STAT) {
+ writel(0, adata->acp63_base + ACP_SW0_WAKE_EN);
+ writel(ACP70_SDW0_PME_STAT, adata->acp63_base + ACP_EXTERNAL_INTR_STAT1);
+ adata->acp70_sdw0_wake_event = true;
+ sdw_wake_irq = true;
+ }
+
+ if (ext_intr_stat1 & ACP70_SDW1_PME_STAT) {
+ writel(0, adata->acp63_base + ACP_SW1_WAKE_EN);
+ writel(ACP70_SDW1_PME_STAT, adata->acp63_base + ACP_EXTERNAL_INTR_STAT1);
+ adata->acp70_sdw1_wake_event = true;
+ sdw_wake_irq = true;
+ }
+
+ if (sdw_wake_irq) {
+ handle_acp70_sdw_wake_event(adata);
+ irq_flag = 1;
+ }
+ return irq_flag;
+}
+
+static short int check_and_handle_sdw_dma_irq(struct acp63_dev_data *adata, u32 ext_intr_stat,
+ u32 ext_intr_stat1)
+{
+ u32 stream_id = 0;
+ u16 sdw_dma_irq_flag = 0;
+ u16 index;
+
+ if (ext_intr_stat & ACP63_SDW_DMA_IRQ_MASK) {
+ for (index = ACP_AUDIO2_RX_THRESHOLD; index <= ACP_AUDIO0_TX_THRESHOLD; index++) {
+ if (ext_intr_stat & BIT(index)) {
+ writel(BIT(index), adata->acp63_base + ACP_EXTERNAL_INTR_STAT);
+ switch (index) {
+ case ACP_AUDIO0_TX_THRESHOLD:
+ stream_id = ACP63_SDW0_AUDIO0_TX;
+ break;
+ case ACP_AUDIO1_TX_THRESHOLD:
+ stream_id = ACP63_SDW0_AUDIO1_TX;
+ break;
+ case ACP_AUDIO2_TX_THRESHOLD:
+ stream_id = ACP63_SDW0_AUDIO2_TX;
+ break;
+ case ACP_AUDIO0_RX_THRESHOLD:
+ stream_id = ACP63_SDW0_AUDIO0_RX;
+ break;
+ case ACP_AUDIO1_RX_THRESHOLD:
+ stream_id = ACP63_SDW0_AUDIO1_RX;
+ break;
+ case ACP_AUDIO2_RX_THRESHOLD:
+ stream_id = ACP63_SDW0_AUDIO2_RX;
+ break;
+ }
+ switch (adata->acp_rev) {
+ case ACP63_PCI_REV:
+ adata->acp63_sdw0_dma_intr_stat[stream_id] = 1;
+ break;
+ case ACP70_PCI_REV:
+ case ACP71_PCI_REV:
+ case ACP72_PCI_REV:
+ adata->acp70_sdw0_dma_intr_stat[stream_id] = 1;
+ break;
+ }
+ sdw_dma_irq_flag = 1;
+ }
+ }
+ }
+ switch (adata->acp_rev) {
+ case ACP63_PCI_REV:
+ if (ext_intr_stat1 & ACP63_P1_AUDIO1_RX_THRESHOLD) {
+ writel(ACP63_P1_AUDIO1_RX_THRESHOLD,
+ adata->acp63_base + ACP_EXTERNAL_INTR_STAT1);
+ adata->acp63_sdw1_dma_intr_stat[ACP63_SDW1_AUDIO1_RX] = 1;
+ sdw_dma_irq_flag = 1;
+ }
+ if (ext_intr_stat1 & ACP63_P1_AUDIO1_TX_THRESHOLD) {
+ writel(ACP63_P1_AUDIO1_TX_THRESHOLD,
+ adata->acp63_base + ACP_EXTERNAL_INTR_STAT1);
+ adata->acp63_sdw1_dma_intr_stat[ACP63_SDW1_AUDIO1_TX] = 1;
+ sdw_dma_irq_flag = 1;
+ }
+ break;
+ case ACP70_PCI_REV:
+ case ACP71_PCI_REV:
+ case ACP72_PCI_REV:
+ if (ext_intr_stat1 & ACP70_P1_SDW_DMA_IRQ_MASK) {
+ for (index = ACP70_P1_AUDIO2_RX_THRESHOLD;
+ index <= ACP70_P1_AUDIO0_TX_THRESHOLD; index++) {
+ if (ext_intr_stat1 & BIT(index)) {
+ writel(BIT(index),
+ adata->acp63_base + ACP_EXTERNAL_INTR_STAT1);
+ switch (index) {
+ case ACP70_P1_AUDIO0_TX_THRESHOLD:
+ stream_id = ACP70_SDW_AUDIO0_TX;
+ break;
+ case ACP70_P1_AUDIO1_TX_THRESHOLD:
+ stream_id = ACP70_SDW_AUDIO1_TX;
+ break;
+ case ACP70_P1_AUDIO2_TX_THRESHOLD:
+ stream_id = ACP70_SDW_AUDIO2_TX;
+ break;
+ case ACP70_P1_AUDIO0_RX_THRESHOLD:
+ stream_id = ACP70_SDW_AUDIO0_RX;
+ break;
+ case ACP70_P1_AUDIO1_RX_THRESHOLD:
+ stream_id = ACP70_SDW_AUDIO1_RX;
+ break;
+ case ACP70_P1_AUDIO2_RX_THRESHOLD:
+ stream_id = ACP70_SDW_AUDIO2_RX;
+ break;
+ }
+
+ adata->acp70_sdw1_dma_intr_stat[stream_id] = 1;
+ sdw_dma_irq_flag = 1;
+ }
+ }
+ }
+ break;
+ }
+ return sdw_dma_irq_flag;
+}
+
+static irqreturn_t acp63_irq_thread(int irq, void *context)
+{
+ struct acp63_dev_data *adata = context;
+
+ acp_hw_sdw_dma_irq_thread(adata);
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t acp63_irq_handler(int irq, void *dev_id)
+{
+ struct acp63_dev_data *adata;
+ struct pdm_dev_data *ps_pdm_data;
+ struct amd_sdw_manager *amd_manager;
+ u32 ext_intr_stat, ext_intr_stat1;
+ u16 irq_flag = 0;
+ u16 wake_irq_flag = 0;
+ u16 sdw_dma_irq_flag = 0;
+
+ adata = dev_id;
+ if (!adata)
+ return IRQ_NONE;
+ /* ACP interrupts will be cleared by reading particular bit and writing
+ * same value to the status register. writing zero's doesn't have any
+ * effect.
+ * Bit by bit checking of IRQ field is implemented.
+ */
+ ext_intr_stat = readl(adata->acp63_base + ACP_EXTERNAL_INTR_STAT);
+ if (ext_intr_stat & ACP_SDW0_STAT) {
+ writel(ACP_SDW0_STAT, adata->acp63_base + ACP_EXTERNAL_INTR_STAT);
+ amd_manager = dev_get_drvdata(&adata->sdw->pdev[0]->dev);
+ if (amd_manager)
+ schedule_work(&amd_manager->amd_sdw_irq_thread);
+ irq_flag = 1;
+ }
+
+ ext_intr_stat1 = readl(adata->acp63_base + ACP_EXTERNAL_INTR_STAT1);
+ if (ext_intr_stat1 & ACP_SDW1_STAT) {
+ writel(ACP_SDW1_STAT, adata->acp63_base + ACP_EXTERNAL_INTR_STAT1);
+ amd_manager = dev_get_drvdata(&adata->sdw->pdev[1]->dev);
+ if (amd_manager)
+ schedule_work(&amd_manager->amd_sdw_irq_thread);
+ irq_flag = 1;
+ }
+
+ if (ext_intr_stat & ACP_ERROR_IRQ) {
+ writel(ACP_ERROR_IRQ, adata->acp63_base + ACP_EXTERNAL_INTR_STAT);
+ /* TODO: Report SoundWire Manager instance errors */
+ writel(0, adata->acp63_base + ACP_SW0_I2S_ERROR_REASON);
+ writel(0, adata->acp63_base + ACP_SW1_I2S_ERROR_REASON);
+ writel(0, adata->acp63_base + ACP_ERROR_STATUS);
+ irq_flag = 1;
+ }
+
+ if (adata->acp_rev >= ACP70_PCI_REV)
+ wake_irq_flag = check_and_handle_acp70_sdw_wake_irq(adata);
+
+ if (ext_intr_stat & BIT(PDM_DMA_STAT)) {
+ ps_pdm_data = dev_get_drvdata(&adata->pdm_dev->dev);
+ writel(BIT(PDM_DMA_STAT), adata->acp63_base + ACP_EXTERNAL_INTR_STAT);
+ if (ps_pdm_data->capture_stream)
+ snd_pcm_period_elapsed(ps_pdm_data->capture_stream);
+ irq_flag = 1;
+ }
+
+ sdw_dma_irq_flag = check_and_handle_sdw_dma_irq(adata, ext_intr_stat, ext_intr_stat1);
+ if (sdw_dma_irq_flag)
+ return IRQ_WAKE_THREAD;
+
+ if (irq_flag || wake_irq_flag)
+ return IRQ_HANDLED;
+ else
+ return IRQ_NONE;
+}
+
+#if IS_ENABLED(CONFIG_SND_SOC_AMD_SOUNDWIRE)
+static int acp_scan_sdw_devices(struct device *dev, u64 addr)
+{
+ struct acpi_device *sdw_dev;
+ struct acp63_dev_data *acp_data;
+
+ acp_data = dev_get_drvdata(dev);
+ if (!addr)
+ return -ENODEV;
+
+ sdw_dev = acpi_find_child_device(ACPI_COMPANION(dev), addr, 0);
+ if (!sdw_dev)
+ return -ENODEV;
+
+ acp_data->info.handle = sdw_dev->handle;
+ acp_data->info.count = AMD_SDW_MAX_MANAGERS;
+ return amd_sdw_scan_controller(&acp_data->info);
+}
+
+static int amd_sdw_probe(struct device *dev)
+{
+ struct acp63_dev_data *acp_data;
+ struct sdw_amd_res sdw_res;
+ int ret;
+
+ acp_data = dev_get_drvdata(dev);
+ memset(&sdw_res, 0, sizeof(sdw_res));
+ sdw_res.addr = acp_data->addr;
+ sdw_res.reg_range = acp_data->reg_range;
+ sdw_res.handle = acp_data->info.handle;
+ sdw_res.parent = dev;
+ sdw_res.dev = dev;
+ sdw_res.acp_lock = &acp_data->acp_lock;
+ sdw_res.count = acp_data->info.count;
+ sdw_res.mmio_base = acp_data->acp63_base;
+ sdw_res.acp_rev = acp_data->acp_rev;
+ sdw_res.link_mask = acp_data->info.link_mask;
+ ret = sdw_amd_probe(&sdw_res, &acp_data->sdw);
+ if (ret)
+ dev_err(dev, "error: SoundWire probe failed\n");
+ return ret;
+}
+
+static int amd_sdw_exit(struct acp63_dev_data *acp_data)
+{
+ if (acp_data->sdw)
+ sdw_amd_exit(acp_data->sdw);
+ acp_data->sdw = NULL;
+
+ return 0;
+}
+
+static struct snd_soc_acpi_mach *acp63_sdw_machine_select(struct device *dev)
+{
+ struct snd_soc_acpi_mach *mach;
+ const struct snd_soc_acpi_link_adr *link;
+ struct acp63_dev_data *acp_data = dev_get_drvdata(dev);
+ int ret, i;
+
+ if (acp_data->info.count) {
+ ret = sdw_amd_get_slave_info(acp_data->sdw);
+ if (ret) {
+ dev_dbg(dev, "failed to read slave information\n");
+ return NULL;
+ }
+ for (mach = acp_data->machines; mach; mach++) {
+ if (!mach->links)
+ break;
+ link = mach->links;
+ for (i = 0; i < acp_data->info.count && link->num_adr; link++, i++) {
+ if (!snd_soc_acpi_sdw_link_slaves_found(dev, link,
+ acp_data->sdw->peripherals))
+ break;
+ }
+ if (i == acp_data->info.count || !link->num_adr)
+ if (!mach->machine_check || mach->machine_check(acp_data->sdw))
+ break;
+ }
+ if (mach && mach->link_mask) {
+ mach->mach_params.links = mach->links;
+ mach->mach_params.link_mask = mach->link_mask;
+ mach->mach_params.subsystem_rev = acp_data->acp_rev;
+ mach->mach_params.subsystem_vendor = acp_data->subsystem_vendor;
+ mach->mach_params.subsystem_device = acp_data->subsystem_device;
+ mach->mach_params.subsystem_id_set = true;
+
+ dev_dbg(dev, "SSID %x%04x\n", mach->mach_params.subsystem_vendor,
+ mach->mach_params.subsystem_device);
+ return mach;
+ }
+ }
+ dev_dbg(dev, "No SoundWire machine driver found\n");
+ return NULL;
+}
+#else
+static int acp_scan_sdw_devices(struct device *dev, u64 addr)
+{
+ return 0;
+}
+
+static int amd_sdw_probe(struct device *dev)
+{
+ return 0;
+}
+
+static int amd_sdw_exit(struct acp63_dev_data *acp_data)
+{
+ return 0;
+}
+
+static struct snd_soc_acpi_mach *acp63_sdw_machine_select(struct device *dev)
+{
+ return NULL;
+}
+#endif
+
+static int acp63_machine_register(struct device *dev)
+{
+ struct snd_soc_acpi_mach *mach;
+ struct acp63_dev_data *adata = dev_get_drvdata(dev);
+ int size;
+
+ if (adata->is_sdw_dev && adata->is_sdw_config) {
+ size = sizeof(*adata->machines);
+ mach = acp63_sdw_machine_select(dev);
+ if (mach) {
+ adata->mach_dev = platform_device_register_data(dev, mach->drv_name,
+ PLATFORM_DEVID_NONE, mach,
+ size);
+ if (IS_ERR(adata->mach_dev)) {
+ dev_err(dev,
+ "cannot register Machine device for SoundWire Interface\n");
+ return PTR_ERR(adata->mach_dev);
+ }
+ }
+
+ } else if (adata->is_pdm_dev && !adata->is_sdw_dev && adata->is_pdm_config) {
+ adata->mach_dev = platform_device_register_data(dev, "acp_ps_mach",
+ PLATFORM_DEVID_NONE, NULL, 0);
+ if (IS_ERR(adata->mach_dev)) {
+ dev_err(dev, "cannot register amd_ps_mach device\n");
+ return PTR_ERR(adata->mach_dev);
+ }
+ }
+ return 0;
+}
+
+static int get_acp63_device_config(struct pci_dev *pci, struct acp63_dev_data *acp_data)
+{
+ struct acpi_device *pdm_dev;
+ const union acpi_object *obj;
+ acpi_handle handle;
+ acpi_integer dmic_status;
+ bool is_dmic_dev = false;
+ bool is_sdw_dev = false;
+ bool wov_en, dmic_en;
+ int ret;
+
+ /* IF WOV entry not found, enable dmic based on acp-audio-device-type entry*/
+ wov_en = true;
+ dmic_en = false;
+
+ acp_hw_get_config(pci, acp_data);
+
+ if (acp_data->is_pdm_config) {
+ pdm_dev = acpi_find_child_device(ACPI_COMPANION(&pci->dev), ACP63_DMIC_ADDR, 0);
+ if (pdm_dev) {
+ /* is_dmic_dev flag will be set when ACP PDM controller device exists */
+ if (!acpi_dev_get_property(pdm_dev, "acp-audio-device-type",
+ ACPI_TYPE_INTEGER, &obj) &&
+ obj->integer.value == ACP_DMIC_DEV)
+ dmic_en = true;
+ }
+
+ handle = ACPI_HANDLE(&pci->dev);
+ ret = acpi_evaluate_integer(handle, "_WOV", NULL, &dmic_status);
+ if (!ACPI_FAILURE(ret))
+ wov_en = dmic_status;
+ }
+
+ if (dmic_en && wov_en)
+ is_dmic_dev = true;
+
+ if (acp_data->is_sdw_config) {
+ ret = acp_scan_sdw_devices(&pci->dev, ACP63_SDW_ADDR);
+ if (!ret && acp_data->info.link_mask)
+ is_sdw_dev = true;
+ }
+
+ acp_data->is_pdm_dev = is_dmic_dev;
+ acp_data->is_sdw_dev = is_sdw_dev;
+ if (!is_dmic_dev && !is_sdw_dev) {
+ dev_dbg(&pci->dev, "No PDM or SoundWire manager devices found\n");
+ return -ENODEV;
+ }
+ return 0;
+}
+
+static void acp63_fill_platform_dev_info(struct platform_device_info *pdevinfo,
+ struct device *parent,
+ struct fwnode_handle *fw_node,
+ char *name, unsigned int id,
+ const struct resource *res,
+ unsigned int num_res,
+ const void *data,
+ size_t size_data)
+{
+ pdevinfo->name = name;
+ pdevinfo->id = id;
+ pdevinfo->parent = parent;
+ pdevinfo->num_res = num_res;
+ pdevinfo->res = res;
+ pdevinfo->data = data;
+ pdevinfo->size_data = size_data;
+ pdevinfo->fwnode = fw_node;
+}
+
+static int create_acp63_platform_devs(struct pci_dev *pci, struct acp63_dev_data *adata, u32 addr)
+{
+ struct platform_device_info pdevinfo;
+ struct device *parent;
+ int ret;
+
+ parent = &pci->dev;
+
+ if (adata->is_sdw_dev || adata->is_pdm_dev) {
+ adata->res = devm_kzalloc(&pci->dev, sizeof(struct resource), GFP_KERNEL);
+ if (!adata->res) {
+ ret = -ENOMEM;
+ goto de_init;
+ }
+ adata->res->flags = IORESOURCE_MEM;
+ adata->res->start = addr;
+ adata->res->end = addr + (ACP63_REG_END - ACP63_REG_START);
+ memset(&pdevinfo, 0, sizeof(pdevinfo));
+ }
+
+ if (adata->is_pdm_dev && adata->is_pdm_config) {
+ acp63_fill_platform_dev_info(&pdevinfo, parent, NULL, "acp_ps_pdm_dma",
+ 0, adata->res, 1, NULL, 0);
+
+ adata->pdm_dev = platform_device_register_full(&pdevinfo);
+ if (IS_ERR(adata->pdm_dev)) {
+ dev_err(&pci->dev,
+ "cannot register %s device\n", pdevinfo.name);
+ ret = PTR_ERR(adata->pdm_dev);
+ goto de_init;
+ }
+ memset(&pdevinfo, 0, sizeof(pdevinfo));
+ acp63_fill_platform_dev_info(&pdevinfo, parent, NULL, "dmic-codec",
+ 0, NULL, 0, NULL, 0);
+ adata->dmic_codec_dev = platform_device_register_full(&pdevinfo);
+ if (IS_ERR(adata->dmic_codec_dev)) {
+ dev_err(&pci->dev,
+ "cannot register %s device\n", pdevinfo.name);
+ ret = PTR_ERR(adata->dmic_codec_dev);
+ goto unregister_pdm_dev;
+ }
+ }
+ if (adata->is_sdw_dev && adata->is_sdw_config) {
+ ret = amd_sdw_probe(&pci->dev);
+ if (ret) {
+ if (adata->is_pdm_dev)
+ goto unregister_dmic_codec_dev;
+ else
+ goto de_init;
+ }
+ memset(&pdevinfo, 0, sizeof(pdevinfo));
+ acp63_fill_platform_dev_info(&pdevinfo, parent, NULL, "amd_ps_sdw_dma",
+ 0, adata->res, 1, NULL, 0);
+
+ adata->sdw_dma_dev = platform_device_register_full(&pdevinfo);
+ if (IS_ERR(adata->sdw_dma_dev)) {
+ dev_err(&pci->dev,
+ "cannot register %s device\n", pdevinfo.name);
+ ret = PTR_ERR(adata->sdw_dma_dev);
+ if (adata->is_pdm_dev)
+ goto unregister_dmic_codec_dev;
+ else
+ goto de_init;
+ }
+ }
+
+ return 0;
+unregister_dmic_codec_dev:
+ platform_device_unregister(adata->dmic_codec_dev);
+unregister_pdm_dev:
+ platform_device_unregister(adata->pdm_dev);
+de_init:
+ if (acp_hw_deinit(adata, &pci->dev))
+ dev_err(&pci->dev, "ACP de-init failed\n");
+ return ret;
+}
+
+static int acp_hw_init_ops(struct acp63_dev_data *adata, struct pci_dev *pci)
+{
+ adata->hw_ops = devm_kzalloc(&pci->dev, sizeof(struct acp_hw_ops),
+ GFP_KERNEL);
+ if (!adata->hw_ops)
+ return -ENOMEM;
+
+ switch (adata->acp_rev) {
+ case ACP63_PCI_REV:
+ acp63_hw_init_ops(adata->hw_ops);
+ break;
+ case ACP70_PCI_REV:
+ case ACP71_PCI_REV:
+ case ACP72_PCI_REV:
+ acp70_hw_init_ops(adata->hw_ops);
+ break;
+ default:
+ dev_err(&pci->dev, "ACP device not found\n");
+ return -ENODEV;
+ }
+ return 0;
+}
+
+static int snd_acp63_probe(struct pci_dev *pci,
+ const struct pci_device_id *pci_id)
+{
+ struct acp63_dev_data *adata;
+ u32 addr;
+ u32 irqflags, flag;
+ int ret;
+
+ irqflags = IRQF_SHARED;
+
+ /* Return if acp config flag is defined */
+ flag = snd_amd_acp_find_config(pci);
+ if (flag)
+ return -ENODEV;
+
+ /* ACP PCI revision id check for ACP6.3, ACP7.0 & ACP7.1 platforms */
+ switch (pci->revision) {
+ case ACP63_PCI_REV:
+ case ACP70_PCI_REV:
+ case ACP71_PCI_REV:
+ case ACP72_PCI_REV:
+ break;
+ default:
+ dev_dbg(&pci->dev, "acp63/acp70/acp71 pci device not found\n");
+ return -ENODEV;
+ }
+ if (pci_enable_device(pci)) {
+ dev_err(&pci->dev, "pci_enable_device failed\n");
+ return -ENODEV;
+ }
+
+ ret = pci_request_regions(pci, "AMD ACP6.3 audio");
+ if (ret < 0) {
+ dev_err(&pci->dev, "pci_request_regions failed\n");
+ goto disable_pci;
+ }
+ adata = devm_kzalloc(&pci->dev, sizeof(struct acp63_dev_data),
+ GFP_KERNEL);
+ if (!adata) {
+ ret = -ENOMEM;
+ goto release_regions;
+ }
+
+ addr = pci_resource_start(pci, 0);
+ adata->acp63_base = devm_ioremap(&pci->dev, addr,
+ pci_resource_len(pci, 0));
+ if (!adata->acp63_base) {
+ ret = -ENOMEM;
+ goto release_regions;
+ }
+ adata->addr = addr;
+ adata->reg_range = ACP63_REG_END - ACP63_REG_START;
+ adata->acp_rev = pci->revision;
+ adata->subsystem_vendor = pci->subsystem_vendor;
+ adata->subsystem_device = pci->subsystem_device;
+
+ pci_set_master(pci);
+ pci_set_drvdata(pci, adata);
+ mutex_init(&adata->acp_lock);
+ ret = acp_hw_init_ops(adata, pci);
+ if (ret) {
+ dev_err(&pci->dev, "ACP hw ops init failed\n");
+ goto release_regions;
+ }
+ ret = acp_hw_init(adata, &pci->dev);
+ if (ret)
+ goto release_regions;
+ ret = devm_request_threaded_irq(&pci->dev, pci->irq, acp63_irq_handler,
+ acp63_irq_thread, irqflags, "ACP_PCI_IRQ", adata);
+ if (ret) {
+ dev_err(&pci->dev, "ACP PCI IRQ request failed\n");
+ goto de_init;
+ }
+ ret = get_acp63_device_config(pci, adata);
+ /* ACP PCI driver probe should be continued even PDM or SoundWire Devices are not found */
+ if (ret) {
+ dev_dbg(&pci->dev, "get acp device config failed:%d\n", ret);
+ goto skip_pdev_creation;
+ }
+ ret = create_acp63_platform_devs(pci, adata, addr);
+ if (ret < 0) {
+ dev_err(&pci->dev, "ACP platform devices creation failed\n");
+ goto de_init;
+ }
+ if (adata->acp_rev >= ACP70_PCI_REV)
+ adata->machines = snd_soc_acpi_amd_acp70_sdw_machines;
+ else
+ adata->machines = snd_soc_acpi_amd_acp63_sdw_machines;
+
+ ret = acp63_machine_register(&pci->dev);
+ if (ret) {
+ dev_err(&pci->dev, "ACP machine register failed\n");
+ goto de_init;
+ }
+skip_pdev_creation:
+ device_set_wakeup_enable(&pci->dev, true);
+ pm_runtime_set_autosuspend_delay(&pci->dev, ACP_SUSPEND_DELAY_MS);
+ pm_runtime_use_autosuspend(&pci->dev);
+ pm_runtime_put_noidle(&pci->dev);
+ pm_runtime_allow(&pci->dev);
+ return 0;
+de_init:
+ if (acp_hw_deinit(adata, &pci->dev))
+ dev_err(&pci->dev, "ACP de-init failed\n");
+release_regions:
+ pci_release_regions(pci);
+disable_pci:
+ pci_disable_device(pci);
+
+ return ret;
+}
+
+static int snd_acp_suspend(struct device *dev)
+{
+ return acp_hw_suspend(dev);
+}
+
+static int snd_acp_runtime_resume(struct device *dev)
+{
+ return acp_hw_runtime_resume(dev);
+}
+
+static void acp_disable_msi_on_resume(struct pci_dev *pdev)
+{
+ u16 control;
+
+ if (!pdev->msi_cap)
+ return;
+
+ pci_read_config_word(pdev, pdev->msi_cap + PCI_MSI_FLAGS, &control);
+ if (control & PCI_MSI_FLAGS_ENABLE) {
+ dev_warn(&pdev->dev,
+ "ACP: MSI unexpectedly enabled after resume (flags=0x%04x), disabling\n",
+ control);
+ control &= ~PCI_MSI_FLAGS_ENABLE;
+ pci_write_config_word(pdev, pdev->msi_cap + PCI_MSI_FLAGS, control);
+ }
+}
+
+static int snd_acp_resume(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+
+ /*
+ * BIOS/firmware may re-enable MSI in PCI config space during
+ * system resume even though this driver only uses legacy INTx
+ * interrupts. If MSI is left enabled with stale address/data
+ * registers, the device will write interrupts to a bogus address
+ * causing IOMMU IO_PAGE_FAULT and interrupt delivery failure.
+ * Explicitly clear the MSI Enable bit before reinitializing
+ * the ACP hardware.
+ */
+ acp_disable_msi_on_resume(pdev);
+ return acp_hw_resume(dev);
+}
+
+static const struct dev_pm_ops acp63_pm_ops = {
+ RUNTIME_PM_OPS(snd_acp_suspend, snd_acp_runtime_resume, NULL)
+ SYSTEM_SLEEP_PM_OPS(snd_acp_suspend, snd_acp_resume)
+};
+
+static void snd_acp63_remove(struct pci_dev *pci)
+{
+ struct acp63_dev_data *adata;
+ int ret;
+
+ adata = pci_get_drvdata(pci);
+ if (adata->sdw) {
+ amd_sdw_exit(adata);
+ platform_device_unregister(adata->sdw_dma_dev);
+ }
+ if (adata->is_pdm_dev) {
+ platform_device_unregister(adata->pdm_dev);
+ platform_device_unregister(adata->dmic_codec_dev);
+ }
+ if (adata->mach_dev)
+ platform_device_unregister(adata->mach_dev);
+ ret = acp_hw_deinit(adata, &pci->dev);
+ if (ret)
+ dev_err(&pci->dev, "ACP de-init failed\n");
+ pm_runtime_forbid(&pci->dev);
+ pm_runtime_get_noresume(&pci->dev);
+ pci_release_regions(pci);
+ pci_disable_device(pci);
+}
+
+static const struct pci_device_id snd_acp63_ids[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_AMD, ACP_DEVICE_ID),
+ .class = PCI_CLASS_MULTIMEDIA_OTHER << 8,
+ .class_mask = 0xffffff },
+ { 0, },
+};
+MODULE_DEVICE_TABLE(pci, snd_acp63_ids);
+
+static struct pci_driver ps_acp63_driver = {
+ .name = KBUILD_MODNAME,
+ .id_table = snd_acp63_ids,
+ .probe = snd_acp63_probe,
+ .remove = snd_acp63_remove,
+ .driver = {
+ .pm = pm_ptr(&acp63_pm_ops),
+ }
+};
+
+module_pci_driver(ps_acp63_driver);
+
+MODULE_AUTHOR("Vijendar.Mukunda@amd.com");
+MODULE_AUTHOR("Syed.SabaKareem@amd.com");
+MODULE_DESCRIPTION("AMD common ACP PCI driver for ACP6.3, ACP7.0 & ACP7.1 platforms");
+MODULE_IMPORT_NS("SOUNDWIRE_AMD_INIT");
+MODULE_IMPORT_NS("SND_AMD_SOUNDWIRE_ACPI");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/amd/ps/ps-common.c b/sound/soc/amd/ps/ps-common.c
new file mode 100644
index 000000000..7b4966b75
--- /dev/null
+++ b/sound/soc/amd/ps/ps-common.c
@@ -0,0 +1,493 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * AMD ACP PCI driver callback routines for ACP6.3, ACP7.0 & ACP7.1
+ * platforms.
+ *
+ * Copyright 2025 Advanced Micro Devices, Inc.
+ * Authors: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
+ */
+
+#include <linux/bitops.h>
+#include <linux/delay.h>
+#include <linux/export.h>
+#include <linux/io.h>
+#include <linux/iopoll.h>
+#include <linux/pci.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <sound/pcm_params.h>
+
+#include "acp63.h"
+
+static int acp63_power_on(void __iomem *acp_base)
+{
+ u32 val;
+
+ val = readl(acp_base + ACP_PGFSM_STATUS);
+
+ if (!val)
+ return val;
+
+ if ((val & ACP63_PGFSM_STATUS_MASK) != ACP63_POWER_ON_IN_PROGRESS)
+ writel(ACP63_PGFSM_CNTL_POWER_ON_MASK, acp_base + ACP_PGFSM_CONTROL);
+
+ return readl_poll_timeout(acp_base + ACP_PGFSM_STATUS, val, !val, DELAY_US, ACP63_TIMEOUT);
+}
+
+static int acp63_reset(void __iomem *acp_base)
+{
+ u32 val;
+ int ret;
+
+ writel(1, acp_base + ACP_SOFT_RESET);
+
+ ret = readl_poll_timeout(acp_base + ACP_SOFT_RESET, val,
+ val & ACP_SOFT_RESET_SOFTRESET_AUDDONE_MASK,
+ DELAY_US, ACP63_TIMEOUT);
+ if (ret)
+ return ret;
+
+ writel(0, acp_base + ACP_SOFT_RESET);
+
+ return readl_poll_timeout(acp_base + ACP_SOFT_RESET, val, !val, DELAY_US, ACP63_TIMEOUT);
+}
+
+static void acp63_enable_interrupts(void __iomem *acp_base)
+{
+ writel(1, acp_base + ACP_EXTERNAL_INTR_ENB);
+ writel(ACP_ERROR_IRQ, acp_base + ACP_EXTERNAL_INTR_CNTL);
+}
+
+static void acp63_disable_interrupts(void __iomem *acp_base)
+{
+ writel(ACP_EXT_INTR_STAT_CLEAR_MASK, acp_base + ACP_EXTERNAL_INTR_STAT);
+ writel(0, acp_base + ACP_EXTERNAL_INTR_CNTL);
+ writel(0, acp_base + ACP_EXTERNAL_INTR_ENB);
+}
+
+static int acp63_init(void __iomem *acp_base, struct device *dev)
+{
+ int ret;
+
+ ret = acp63_power_on(acp_base);
+ if (ret) {
+ dev_err(dev, "ACP power on failed\n");
+ return ret;
+ }
+ writel(0x01, acp_base + ACP_CONTROL);
+ ret = acp63_reset(acp_base);
+ if (ret) {
+ dev_err(dev, "ACP reset failed\n");
+ return ret;
+ }
+ acp63_enable_interrupts(acp_base);
+ writel(0, acp_base + ACP_ZSC_DSP_CTRL);
+ return 0;
+}
+
+static int acp63_deinit(void __iomem *acp_base, struct device *dev)
+{
+ int ret;
+
+ acp63_disable_interrupts(acp_base);
+ ret = acp63_reset(acp_base);
+ if (ret) {
+ dev_err(dev, "ACP reset failed\n");
+ return ret;
+ }
+ writel(0, acp_base + ACP_CONTROL);
+ writel(1, acp_base + ACP_ZSC_DSP_CTRL);
+ return 0;
+}
+
+static void acp63_get_config(struct pci_dev *pci, struct acp63_dev_data *acp_data)
+{
+ u32 config;
+
+ config = readl(acp_data->acp63_base + ACP_PIN_CONFIG);
+ dev_dbg(&pci->dev, "ACP config value: %d\n", config);
+ switch (config) {
+ case ACP_CONFIG_4:
+ case ACP_CONFIG_5:
+ case ACP_CONFIG_10:
+ case ACP_CONFIG_11:
+ acp_data->is_pdm_config = true;
+ break;
+ case ACP_CONFIG_2:
+ case ACP_CONFIG_3:
+ acp_data->is_sdw_config = true;
+ break;
+ case ACP_CONFIG_6:
+ case ACP_CONFIG_7:
+ case ACP_CONFIG_12:
+ case ACP_CONFIG_8:
+ case ACP_CONFIG_13:
+ case ACP_CONFIG_14:
+ acp_data->is_pdm_config = true;
+ acp_data->is_sdw_config = true;
+ break;
+ default:
+ break;
+ }
+}
+
+static bool check_acp_sdw_enable_status(struct acp63_dev_data *adata)
+{
+ u32 sdw0_en, sdw1_en;
+
+ sdw0_en = readl(adata->acp63_base + ACP_SW0_EN);
+ sdw1_en = readl(adata->acp63_base + ACP_SW1_EN);
+ return (sdw0_en || sdw1_en);
+}
+
+static void handle_acp63_sdw_pme_event(struct acp63_dev_data *adata)
+{
+ u32 val;
+
+ val = readl(adata->acp63_base + ACP_SW0_WAKE_EN);
+ if (val && adata->sdw->pdev[0])
+ pm_request_resume(&adata->sdw->pdev[0]->dev);
+
+ val = readl(adata->acp63_base + ACP_SW1_WAKE_EN);
+ if (val && adata->sdw->pdev[1])
+ pm_request_resume(&adata->sdw->pdev[1]->dev);
+}
+
+static int __maybe_unused snd_acp63_suspend(struct device *dev)
+{
+ struct acp63_dev_data *adata;
+ int ret;
+
+ adata = dev_get_drvdata(dev);
+ if (adata->is_sdw_dev) {
+ adata->acp_sw_pad_keeper_en = readl(adata->acp63_base + ACP_SW0_PAD_KEEPER_EN);
+ adata->acp_pad_pulldown_ctrl = readl(adata->acp63_base + ACP_PAD_PULLDOWN_CTRL);
+ adata->sdw_en_stat = check_acp_sdw_enable_status(adata);
+ if (adata->sdw_en_stat) {
+ writel(1, adata->acp63_base + ACP_ZSC_DSP_CTRL);
+ return 0;
+ }
+ }
+ ret = acp_hw_deinit(adata, dev);
+ if (ret)
+ dev_err(dev, "ACP de-init failed\n");
+
+ return ret;
+}
+
+static int __maybe_unused snd_acp63_runtime_resume(struct device *dev)
+{
+ struct acp63_dev_data *adata;
+ int ret;
+
+ adata = dev_get_drvdata(dev);
+ if (adata->sdw_en_stat) {
+ writel(0, adata->acp63_base + ACP_ZSC_DSP_CTRL);
+ return 0;
+ }
+ ret = acp_hw_init(adata, dev);
+ if (ret) {
+ dev_err(dev, "ACP init failed\n");
+ return ret;
+ }
+
+ if (!adata->sdw_en_stat)
+ handle_acp63_sdw_pme_event(adata);
+ return 0;
+}
+
+static int __maybe_unused snd_acp63_resume(struct device *dev)
+{
+ struct acp63_dev_data *adata;
+ u32 acp_sw_pad_keeper_en;
+ int ret;
+
+ adata = dev_get_drvdata(dev);
+ if (adata->sdw_en_stat) {
+ writel(0, adata->acp63_base + ACP_ZSC_DSP_CTRL);
+ return 0;
+ }
+
+ ret = acp_hw_init(adata, dev);
+ if (ret)
+ dev_err(dev, "ACP init failed\n");
+
+ acp_sw_pad_keeper_en = readl(adata->acp63_base + ACP_SW0_PAD_KEEPER_EN);
+ dev_dbg(dev, "ACP_SW0_PAD_KEEPER_EN:0x%x\n", acp_sw_pad_keeper_en);
+ if (!acp_sw_pad_keeper_en) {
+ writel(adata->acp_sw_pad_keeper_en, adata->acp63_base + ACP_SW0_PAD_KEEPER_EN);
+ writel(adata->acp_pad_pulldown_ctrl, adata->acp63_base + ACP_PAD_PULLDOWN_CTRL);
+ }
+ return ret;
+}
+
+static void acp63_sdw_dma_irq_thread(struct acp63_dev_data *adata)
+{
+ struct sdw_dma_dev_data *sdw_data;
+ u32 stream_id;
+
+ sdw_data = dev_get_drvdata(&adata->sdw_dma_dev->dev);
+
+ for (stream_id = 0; stream_id < ACP63_SDW0_DMA_MAX_STREAMS; stream_id++) {
+ if (adata->acp63_sdw0_dma_intr_stat[stream_id]) {
+ if (sdw_data->acp63_sdw0_dma_stream[stream_id])
+ snd_pcm_period_elapsed(sdw_data->acp63_sdw0_dma_stream[stream_id]);
+ adata->acp63_sdw0_dma_intr_stat[stream_id] = 0;
+ }
+ }
+ for (stream_id = 0; stream_id < ACP63_SDW1_DMA_MAX_STREAMS; stream_id++) {
+ if (adata->acp63_sdw1_dma_intr_stat[stream_id]) {
+ if (sdw_data->acp63_sdw1_dma_stream[stream_id])
+ snd_pcm_period_elapsed(sdw_data->acp63_sdw1_dma_stream[stream_id]);
+ adata->acp63_sdw1_dma_intr_stat[stream_id] = 0;
+ }
+ }
+}
+
+void acp63_hw_init_ops(struct acp_hw_ops *hw_ops)
+{
+ hw_ops->acp_init = acp63_init;
+ hw_ops->acp_deinit = acp63_deinit;
+ hw_ops->acp_get_config = acp63_get_config;
+ hw_ops->acp_sdw_dma_irq_thread = acp63_sdw_dma_irq_thread;
+ hw_ops->acp_suspend = snd_acp63_suspend;
+ hw_ops->acp_resume = snd_acp63_resume;
+ hw_ops->acp_suspend_runtime = snd_acp63_suspend;
+ hw_ops->acp_resume_runtime = snd_acp63_runtime_resume;
+}
+
+static int acp70_power_on(void __iomem *acp_base)
+{
+ u32 val = 0;
+
+ val = readl(acp_base + ACP_PGFSM_STATUS);
+
+ if (!val)
+ return 0;
+ if (val & ACP70_PGFSM_STATUS_MASK)
+ writel(ACP70_PGFSM_CNTL_POWER_ON_MASK, acp_base + ACP_PGFSM_CONTROL);
+
+ return readl_poll_timeout(acp_base + ACP_PGFSM_STATUS, val, !val, DELAY_US, ACP70_TIMEOUT);
+}
+
+static int acp70_reset(void __iomem *acp_base)
+{
+ u32 val;
+ int ret;
+
+ writel(1, acp_base + ACP_SOFT_RESET);
+
+ ret = readl_poll_timeout(acp_base + ACP_SOFT_RESET, val,
+ val & ACP_SOFT_RESET_SOFTRESET_AUDDONE_MASK,
+ DELAY_US, ACP70_TIMEOUT);
+ if (ret)
+ return ret;
+
+ writel(0, acp_base + ACP_SOFT_RESET);
+
+ return readl_poll_timeout(acp_base + ACP_SOFT_RESET, val, !val, DELAY_US, ACP70_TIMEOUT);
+}
+
+static void acp70_enable_sdw_host_wake_interrupts(void __iomem *acp_base)
+{
+ u32 ext_intr_cntl1;
+
+ ext_intr_cntl1 = readl(acp_base + ACP_EXTERNAL_INTR_CNTL1);
+ ext_intr_cntl1 |= ACP70_SDW_HOST_WAKE_MASK;
+ writel(ext_intr_cntl1, acp_base + ACP_EXTERNAL_INTR_CNTL1);
+}
+
+static void acp70_enable_interrupts(void __iomem *acp_base)
+{
+ u32 sdw0_wake_en, sdw1_wake_en;
+
+ writel(1, acp_base + ACP_EXTERNAL_INTR_ENB);
+ writel(ACP_ERROR_IRQ, acp_base + ACP_EXTERNAL_INTR_CNTL);
+ sdw0_wake_en = readl(acp_base + ACP_SW0_WAKE_EN);
+ sdw1_wake_en = readl(acp_base + ACP_SW1_WAKE_EN);
+ if (sdw0_wake_en || sdw1_wake_en)
+ acp70_enable_sdw_host_wake_interrupts(acp_base);
+}
+
+static void acp70_disable_interrupts(void __iomem *acp_base)
+{
+ writel(ACP_EXT_INTR_STAT_CLEAR_MASK, acp_base + ACP_EXTERNAL_INTR_STAT);
+ writel(0, acp_base + ACP_EXTERNAL_INTR_CNTL);
+ writel(0, acp_base + ACP_EXTERNAL_INTR_ENB);
+}
+
+static int acp70_init(void __iomem *acp_base, struct device *dev)
+{
+ int ret;
+
+ ret = acp70_power_on(acp_base);
+ if (ret) {
+ dev_err(dev, "ACP power on failed\n");
+ return ret;
+ }
+ writel(0x01, acp_base + ACP_CONTROL);
+ ret = acp70_reset(acp_base);
+ if (ret) {
+ dev_err(dev, "ACP reset failed\n");
+ return ret;
+ }
+ writel(0, acp_base + ACP_ZSC_DSP_CTRL);
+ acp70_enable_interrupts(acp_base);
+ writel(0x1, acp_base + ACP_PME_EN);
+ return 0;
+}
+
+static int acp70_deinit(void __iomem *acp_base, struct device *dev)
+{
+ int ret;
+
+ acp70_disable_interrupts(acp_base);
+ ret = acp70_reset(acp_base);
+ if (ret) {
+ dev_err(dev, "ACP reset failed\n");
+ return ret;
+ }
+ writel(0x01, acp_base + ACP_ZSC_DSP_CTRL);
+ return 0;
+}
+
+static void acp70_get_config(struct pci_dev *pci, struct acp63_dev_data *acp_data)
+{
+ u32 config;
+
+ config = readl(acp_data->acp63_base + ACP_PIN_CONFIG);
+ dev_dbg(&pci->dev, "ACP config value: %d\n", config);
+ switch (config) {
+ case ACP_CONFIG_4:
+ case ACP_CONFIG_5:
+ case ACP_CONFIG_10:
+ case ACP_CONFIG_11:
+ case ACP_CONFIG_20:
+ acp_data->is_pdm_config = true;
+ break;
+ case ACP_CONFIG_2:
+ case ACP_CONFIG_3:
+ case ACP_CONFIG_16:
+ acp_data->is_sdw_config = true;
+ break;
+ case ACP_CONFIG_6:
+ case ACP_CONFIG_7:
+ case ACP_CONFIG_12:
+ case ACP_CONFIG_8:
+ case ACP_CONFIG_13:
+ case ACP_CONFIG_14:
+ case ACP_CONFIG_17:
+ case ACP_CONFIG_18:
+ case ACP_CONFIG_19:
+ acp_data->is_pdm_config = true;
+ acp_data->is_sdw_config = true;
+ break;
+ default:
+ break;
+ }
+}
+
+static void acp70_sdw_dma_irq_thread(struct acp63_dev_data *adata)
+{
+ struct sdw_dma_dev_data *sdw_data;
+ u32 stream_id;
+
+ sdw_data = dev_get_drvdata(&adata->sdw_dma_dev->dev);
+
+ for (stream_id = 0; stream_id < ACP70_SDW0_DMA_MAX_STREAMS; stream_id++) {
+ if (adata->acp70_sdw0_dma_intr_stat[stream_id]) {
+ if (sdw_data->acp70_sdw0_dma_stream[stream_id])
+ snd_pcm_period_elapsed(sdw_data->acp70_sdw0_dma_stream[stream_id]);
+ adata->acp70_sdw0_dma_intr_stat[stream_id] = 0;
+ }
+ }
+ for (stream_id = 0; stream_id < ACP70_SDW1_DMA_MAX_STREAMS; stream_id++) {
+ if (adata->acp70_sdw1_dma_intr_stat[stream_id]) {
+ if (sdw_data->acp70_sdw1_dma_stream[stream_id])
+ snd_pcm_period_elapsed(sdw_data->acp70_sdw1_dma_stream[stream_id]);
+ adata->acp70_sdw1_dma_intr_stat[stream_id] = 0;
+ }
+ }
+}
+
+static int __maybe_unused snd_acp70_suspend(struct device *dev)
+{
+ struct acp63_dev_data *adata;
+ int ret;
+
+ adata = dev_get_drvdata(dev);
+ if (adata->is_sdw_dev) {
+ adata->acp_sw_pad_keeper_en = readl(adata->acp63_base + ACP_SW0_PAD_KEEPER_EN);
+ adata->acp_pad_pulldown_ctrl = readl(adata->acp63_base + ACP_PAD_PULLDOWN_CTRL);
+ adata->sdw_en_stat = check_acp_sdw_enable_status(adata);
+ if (adata->sdw_en_stat) {
+ writel(1, adata->acp63_base + ACP_ZSC_DSP_CTRL);
+ return 0;
+ }
+ }
+ ret = acp_hw_deinit(adata, dev);
+ if (ret)
+ dev_err(dev, "ACP de-init failed\n");
+
+ return ret;
+}
+
+static int __maybe_unused snd_acp70_runtime_resume(struct device *dev)
+{
+ struct acp63_dev_data *adata;
+ int ret;
+
+ adata = dev_get_drvdata(dev);
+
+ if (adata->sdw_en_stat) {
+ writel(0, adata->acp63_base + ACP_ZSC_DSP_CTRL);
+ writel(1, adata->acp63_base + ACP_PME_EN);
+ return 0;
+ }
+
+ ret = acp_hw_init(adata, dev);
+ if (ret) {
+ dev_err(dev, "ACP init failed\n");
+ return ret;
+ }
+ return 0;
+}
+
+static int __maybe_unused snd_acp70_resume(struct device *dev)
+{
+ struct acp63_dev_data *adata;
+ u32 acp_sw_pad_keeper_en;
+ int ret;
+
+ adata = dev_get_drvdata(dev);
+
+ if (adata->sdw_en_stat) {
+ writel(0, adata->acp63_base + ACP_ZSC_DSP_CTRL);
+ writel(1, adata->acp63_base + ACP_PME_EN);
+ return 0;
+ }
+
+ ret = acp_hw_init(adata, dev);
+ if (ret)
+ dev_err(dev, "ACP init failed\n");
+
+ acp_sw_pad_keeper_en = readl(adata->acp63_base + ACP_SW0_PAD_KEEPER_EN);
+ dev_dbg(dev, "ACP_SW0_PAD_KEEPER_EN:0x%x\n", acp_sw_pad_keeper_en);
+ if (!acp_sw_pad_keeper_en) {
+ writel(adata->acp_sw_pad_keeper_en, adata->acp63_base + ACP_SW0_PAD_KEEPER_EN);
+ writel(adata->acp_pad_pulldown_ctrl, adata->acp63_base + ACP_PAD_PULLDOWN_CTRL);
+ }
+ return ret;
+}
+
+void acp70_hw_init_ops(struct acp_hw_ops *hw_ops)
+{
+ hw_ops->acp_init = acp70_init;
+ hw_ops->acp_deinit = acp70_deinit;
+ hw_ops->acp_get_config = acp70_get_config;
+ hw_ops->acp_sdw_dma_irq_thread = acp70_sdw_dma_irq_thread;
+ hw_ops->acp_suspend = snd_acp70_suspend;
+ hw_ops->acp_resume = snd_acp70_resume;
+ hw_ops->acp_suspend_runtime = snd_acp70_suspend;
+ hw_ops->acp_resume_runtime = snd_acp70_runtime_resume;
+}
diff --git a/sound/soc/amd/ps/ps-mach.c b/sound/soc/amd/ps/ps-mach.c
new file mode 100644
index 000000000..3e49c255c
--- /dev/null
+++ b/sound/soc/amd/ps/ps-mach.c
@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Machine driver for AMD Pink Sardine platform using DMIC
+ *
+ * Copyright 2022 Advanced Micro Devices, Inc.
+ */
+
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <linux/module.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <linux/io.h>
+#include <linux/dmi.h>
+
+#include "acp63.h"
+
+#define DRV_NAME "acp_ps_mach"
+
+SND_SOC_DAILINK_DEF(acp63_pdm,
+ DAILINK_COMP_ARRAY(COMP_CPU("acp_ps_pdm_dma.0")));
+
+SND_SOC_DAILINK_DEF(dmic_codec,
+ DAILINK_COMP_ARRAY(COMP_CODEC("dmic-codec.0",
+ "dmic-hifi")));
+
+SND_SOC_DAILINK_DEF(pdm_platform,
+ DAILINK_COMP_ARRAY(COMP_PLATFORM("acp_ps_pdm_dma.0")));
+
+static struct snd_soc_dai_link acp63_dai_pdm[] = {
+ {
+ .name = "acp63-dmic-capture",
+ .stream_name = "DMIC capture",
+ .capture_only = 1,
+ SND_SOC_DAILINK_REG(acp63_pdm, dmic_codec, pdm_platform),
+ },
+};
+
+static struct snd_soc_card acp63_card = {
+ .name = "acp63",
+ .owner = THIS_MODULE,
+ .dai_link = acp63_dai_pdm,
+ .num_links = 1,
+};
+
+static int acp63_probe(struct platform_device *pdev)
+{
+ struct snd_soc_card *card;
+ int ret;
+
+ platform_set_drvdata(pdev, &acp63_card);
+ card = platform_get_drvdata(pdev);
+ acp63_card.dev = &pdev->dev;
+
+ ret = devm_snd_soc_register_card(&pdev->dev, card);
+ if (ret) {
+ return dev_err_probe(&pdev->dev, ret,
+ "snd_soc_register_card(%s) failed\n",
+ card->name);
+ }
+
+ return 0;
+}
+
+static struct platform_driver acp63_mach_driver = {
+ .driver = {
+ .name = "acp_ps_mach",
+ .pm = &snd_soc_pm_ops,
+ },
+ .probe = acp63_probe,
+};
+
+module_platform_driver(acp63_mach_driver);
+
+MODULE_AUTHOR("Syed.SabaKareem@amd.com");
+MODULE_DESCRIPTION("AMD Pink Sardine support for DMIC");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/sound/soc/amd/ps/ps-pdm-dma.c b/sound/soc/amd/ps/ps-pdm-dma.c
new file mode 100644
index 000000000..04c014349
--- /dev/null
+++ b/sound/soc/amd/ps/ps-pdm-dma.c
@@ -0,0 +1,464 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * AMD ALSA SoC common PDM Driver for ACP6.3, ACP7.0 & ACP7.1 platforms.
+ *
+ * Copyright 2022, 2025 Advanced Micro Devices, Inc.
+ */
+
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/bitfield.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dai.h>
+#include <linux/pm_runtime.h>
+
+#include "acp63.h"
+
+#define DRV_NAME "acp_ps_pdm_dma"
+
+static int pdm_gain = 3;
+module_param(pdm_gain, int, 0644);
+MODULE_PARM_DESC(pdm_gain, "Gain control (0-3)");
+
+static const struct snd_pcm_hardware acp63_pdm_hardware_capture = {
+ .info = SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_BLOCK_TRANSFER |
+ SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME,
+ .formats = SNDRV_PCM_FMTBIT_S32_LE,
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_48000,
+ .rate_min = 48000,
+ .rate_max = 48000,
+ .buffer_bytes_max = CAPTURE_MAX_NUM_PERIODS * CAPTURE_MAX_PERIOD_SIZE,
+ .period_bytes_min = CAPTURE_MIN_PERIOD_SIZE,
+ .period_bytes_max = CAPTURE_MAX_PERIOD_SIZE,
+ .periods_min = CAPTURE_MIN_NUM_PERIODS,
+ .periods_max = CAPTURE_MAX_NUM_PERIODS,
+};
+
+static void acp63_init_pdm_ring_buffer(u32 physical_addr, u32 buffer_size,
+ u32 watermark_size, void __iomem *acp_base)
+{
+ writel(physical_addr, acp_base + ACP_WOV_RX_RINGBUFADDR);
+ writel(buffer_size, acp_base + ACP_WOV_RX_RINGBUFSIZE);
+ writel(watermark_size, acp_base + ACP_WOV_RX_INTR_WATERMARK_SIZE);
+ writel(0x01, acp_base + ACPAXI2AXI_ATU_CTRL);
+}
+
+static void acp63_enable_pdm_clock(void __iomem *acp_base)
+{
+ u32 pdm_clk_enable, pdm_ctrl;
+
+ pdm_clk_enable = ACP_PDM_CLK_FREQ_MASK;
+ pdm_ctrl = 0x00;
+
+ writel(pdm_clk_enable, acp_base + ACP_WOV_CLK_CTRL);
+ pdm_ctrl = readl(acp_base + ACP_WOV_MISC_CTRL);
+ pdm_ctrl &= ~ACP_WOV_GAIN_CONTROL;
+ pdm_ctrl |= FIELD_PREP(ACP_WOV_GAIN_CONTROL, clamp(pdm_gain, 0, 3));
+ writel(pdm_ctrl, acp_base + ACP_WOV_MISC_CTRL);
+}
+
+static void acp63_enable_pdm_interrupts(struct pdm_dev_data *adata)
+{
+ u32 ext_int_ctrl;
+
+ mutex_lock(adata->acp_lock);
+ ext_int_ctrl = readl(adata->acp63_base + ACP_EXTERNAL_INTR_CNTL);
+ ext_int_ctrl |= PDM_DMA_INTR_MASK;
+ writel(ext_int_ctrl, adata->acp63_base + ACP_EXTERNAL_INTR_CNTL);
+ mutex_unlock(adata->acp_lock);
+}
+
+static void acp63_disable_pdm_interrupts(struct pdm_dev_data *adata)
+{
+ u32 ext_int_ctrl;
+
+ mutex_lock(adata->acp_lock);
+ ext_int_ctrl = readl(adata->acp63_base + ACP_EXTERNAL_INTR_CNTL);
+ ext_int_ctrl &= ~PDM_DMA_INTR_MASK;
+ writel(ext_int_ctrl, adata->acp63_base + ACP_EXTERNAL_INTR_CNTL);
+ mutex_unlock(adata->acp_lock);
+}
+
+static bool acp63_check_pdm_dma_status(void __iomem *acp_base)
+{
+ bool pdm_dma_status;
+ u32 pdm_enable, pdm_dma_enable;
+
+ pdm_dma_status = false;
+ pdm_enable = readl(acp_base + ACP_WOV_PDM_ENABLE);
+ pdm_dma_enable = readl(acp_base + ACP_WOV_PDM_DMA_ENABLE);
+ if ((pdm_enable & ACP_PDM_ENABLE) && (pdm_dma_enable & ACP_PDM_DMA_EN_STATUS))
+ pdm_dma_status = true;
+
+ return pdm_dma_status;
+}
+
+static int acp63_start_pdm_dma(void __iomem *acp_base)
+{
+ u32 pdm_enable;
+ u32 pdm_dma_enable;
+ int timeout;
+
+ pdm_enable = 0x01;
+ pdm_dma_enable = 0x01;
+
+ acp63_enable_pdm_clock(acp_base);
+ writel(pdm_enable, acp_base + ACP_WOV_PDM_ENABLE);
+ writel(pdm_dma_enable, acp_base + ACP_WOV_PDM_DMA_ENABLE);
+ timeout = 0;
+ while (++timeout < ACP_COUNTER) {
+ pdm_dma_enable = readl(acp_base + ACP_WOV_PDM_DMA_ENABLE);
+ if ((pdm_dma_enable & 0x02) == ACP_PDM_DMA_EN_STATUS)
+ return 0;
+ udelay(DELAY_US);
+ }
+ return -ETIMEDOUT;
+}
+
+static int acp63_stop_pdm_dma(void __iomem *acp_base)
+{
+ u32 pdm_enable, pdm_dma_enable;
+ int timeout;
+
+ pdm_enable = 0x00;
+ pdm_dma_enable = 0x00;
+
+ pdm_enable = readl(acp_base + ACP_WOV_PDM_ENABLE);
+ pdm_dma_enable = readl(acp_base + ACP_WOV_PDM_DMA_ENABLE);
+ if (pdm_dma_enable & 0x01) {
+ pdm_dma_enable = 0x02;
+ writel(pdm_dma_enable, acp_base + ACP_WOV_PDM_DMA_ENABLE);
+ timeout = 0;
+ while (++timeout < ACP_COUNTER) {
+ pdm_dma_enable = readl(acp_base + ACP_WOV_PDM_DMA_ENABLE);
+ if ((pdm_dma_enable & 0x02) == 0x00)
+ break;
+ udelay(DELAY_US);
+ }
+ if (timeout == ACP_COUNTER)
+ return -ETIMEDOUT;
+ }
+ if (pdm_enable == ACP_PDM_ENABLE) {
+ pdm_enable = ACP_PDM_DISABLE;
+ writel(pdm_enable, acp_base + ACP_WOV_PDM_ENABLE);
+ }
+ writel(0x01, acp_base + ACP_WOV_PDM_FIFO_FLUSH);
+ return 0;
+}
+
+static void acp63_config_dma(struct pdm_stream_instance *rtd, int direction)
+{
+ u16 page_idx;
+ u32 low, high, val;
+ dma_addr_t addr;
+
+ addr = rtd->dma_addr;
+ val = PDM_PTE_OFFSET;
+
+ /* Group Enable */
+ writel(ACP_SRAM_PTE_OFFSET | BIT(31), rtd->acp63_base + ACPAXI2AXI_ATU_BASE_ADDR_GRP_1);
+ writel(PAGE_SIZE_4K_ENABLE, rtd->acp63_base + ACPAXI2AXI_ATU_PAGE_SIZE_GRP_1);
+ for (page_idx = 0; page_idx < rtd->num_pages; page_idx++) {
+ /* Load the low address of page int ACP SRAM through SRBM */
+ low = lower_32_bits(addr);
+ high = upper_32_bits(addr);
+
+ writel(low, rtd->acp63_base + ACP_SCRATCH_REG_0 + val);
+ high |= BIT(31);
+ writel(high, rtd->acp63_base + ACP_SCRATCH_REG_0 + val + 4);
+ val += 8;
+ addr += PAGE_SIZE;
+ }
+}
+
+static int acp63_pdm_dma_open(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime;
+ struct pdm_dev_data *adata;
+ struct pdm_stream_instance *pdm_data;
+ int ret;
+
+ runtime = substream->runtime;
+ adata = dev_get_drvdata(component->dev);
+ pdm_data = kzalloc_obj(*pdm_data);
+ if (!pdm_data)
+ return -EINVAL;
+
+ if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
+ runtime->hw = acp63_pdm_hardware_capture;
+
+ ret = snd_pcm_hw_constraint_integer(runtime,
+ SNDRV_PCM_HW_PARAM_PERIODS);
+ if (ret < 0) {
+ dev_err(component->dev, "set integer constraint failed\n");
+ kfree(pdm_data);
+ return ret;
+ }
+
+ acp63_enable_pdm_interrupts(adata);
+
+ if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
+ adata->capture_stream = substream;
+
+ pdm_data->acp63_base = adata->acp63_base;
+ runtime->private_data = pdm_data;
+ return ret;
+}
+
+static int acp63_pdm_dma_hw_params(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct pdm_stream_instance *rtd;
+ size_t size, period_bytes;
+
+ rtd = substream->runtime->private_data;
+ if (!rtd)
+ return -EINVAL;
+ size = params_buffer_bytes(params);
+ period_bytes = params_period_bytes(params);
+ rtd->dma_addr = substream->runtime->dma_addr;
+ rtd->num_pages = (PAGE_ALIGN(size) >> PAGE_SHIFT);
+ acp63_config_dma(rtd, substream->stream);
+ acp63_init_pdm_ring_buffer(PDM_MEM_WINDOW_START, size,
+ period_bytes, rtd->acp63_base);
+ return 0;
+}
+
+static u64 acp63_pdm_get_byte_count(struct pdm_stream_instance *rtd,
+ int direction)
+{
+ u32 high, low;
+ u64 byte_count;
+
+ high = readl(rtd->acp63_base + ACP_WOV_RX_LINEARPOSITIONCNTR_HIGH);
+ byte_count = high;
+ low = readl(rtd->acp63_base + ACP_WOV_RX_LINEARPOSITIONCNTR_LOW);
+ byte_count = (byte_count << 32) | low;
+ return byte_count;
+}
+
+static snd_pcm_uframes_t acp63_pdm_dma_pointer(struct snd_soc_component *comp,
+ struct snd_pcm_substream *stream)
+{
+ struct pdm_stream_instance *rtd;
+ u32 pos, buffersize;
+ u64 bytescount;
+
+ rtd = stream->runtime->private_data;
+ buffersize = frames_to_bytes(stream->runtime,
+ stream->runtime->buffer_size);
+ bytescount = acp63_pdm_get_byte_count(rtd, stream->stream);
+ if (bytescount > rtd->bytescount)
+ bytescount -= rtd->bytescount;
+ pos = do_div(bytescount, buffersize);
+ return bytes_to_frames(stream->runtime, pos);
+}
+
+static int acp63_pdm_dma_new(struct snd_soc_component *component,
+ struct snd_soc_pcm_runtime *rtd)
+{
+ struct device *parent = component->dev->parent;
+
+ snd_pcm_set_managed_buffer_all(rtd->pcm, SNDRV_DMA_TYPE_DEV,
+ parent, MIN_BUFFER, MAX_BUFFER);
+ return 0;
+}
+
+static int acp63_pdm_dma_close(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ struct pdm_dev_data *adata = dev_get_drvdata(component->dev);
+ struct snd_pcm_runtime *runtime = substream->runtime;
+
+ acp63_disable_pdm_interrupts(adata);
+ adata->capture_stream = NULL;
+ kfree(runtime->private_data);
+ return 0;
+}
+
+static int acp63_pdm_dai_trigger(struct snd_pcm_substream *substream,
+ int cmd, struct snd_soc_dai *dai)
+{
+ struct pdm_stream_instance *rtd;
+ int ret;
+ bool pdm_status;
+ unsigned int ch_mask;
+
+ rtd = substream->runtime->private_data;
+ ret = 0;
+ switch (substream->runtime->channels) {
+ case TWO_CH:
+ ch_mask = 0x00;
+ break;
+ default:
+ return -EINVAL;
+ }
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ writel(ch_mask, rtd->acp63_base + ACP_WOV_PDM_NO_OF_CHANNELS);
+ writel(PDM_DECIMATION_FACTOR, rtd->acp63_base + ACP_WOV_PDM_DECIMATION_FACTOR);
+ rtd->bytescount = acp63_pdm_get_byte_count(rtd, substream->stream);
+ pdm_status = acp63_check_pdm_dma_status(rtd->acp63_base);
+ if (!pdm_status)
+ ret = acp63_start_pdm_dma(rtd->acp63_base);
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ pdm_status = acp63_check_pdm_dma_status(rtd->acp63_base);
+ if (pdm_status)
+ ret = acp63_stop_pdm_dma(rtd->acp63_base);
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+ return ret;
+}
+
+static const struct snd_soc_dai_ops acp63_pdm_dai_ops = {
+ .trigger = acp63_pdm_dai_trigger,
+};
+
+static struct snd_soc_dai_driver acp63_pdm_dai_driver = {
+ .name = "acp_ps_pdm_dma.0",
+ .capture = {
+ .rates = SNDRV_PCM_RATE_48000,
+ .formats = SNDRV_PCM_FMTBIT_S32_LE,
+ .channels_min = 2,
+ .channels_max = 2,
+ .rate_min = 48000,
+ .rate_max = 48000,
+ },
+ .ops = &acp63_pdm_dai_ops,
+};
+
+static const struct snd_soc_component_driver acp63_pdm_component = {
+ .name = DRV_NAME,
+ .open = acp63_pdm_dma_open,
+ .close = acp63_pdm_dma_close,
+ .hw_params = acp63_pdm_dma_hw_params,
+ .pointer = acp63_pdm_dma_pointer,
+ .pcm_new = acp63_pdm_dma_new,
+ .use_dai_pcm_id = true,
+};
+
+static int acp63_pdm_audio_probe(struct platform_device *pdev)
+{
+ struct resource *res;
+ struct pdm_dev_data *adata;
+ struct acp63_dev_data *acp_data;
+ struct device *parent;
+ int status;
+
+ parent = pdev->dev.parent;
+ acp_data = dev_get_drvdata(parent);
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "IORESOURCE_MEM FAILED\n");
+ return -ENODEV;
+ }
+
+ adata = devm_kzalloc(&pdev->dev, sizeof(*adata), GFP_KERNEL);
+ if (!adata)
+ return -ENOMEM;
+
+ adata->acp63_base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
+ if (!adata->acp63_base)
+ return -ENOMEM;
+
+ adata->capture_stream = NULL;
+ adata->acp_lock = &acp_data->acp_lock;
+ dev_set_drvdata(&pdev->dev, adata);
+ status = devm_snd_soc_register_component(&pdev->dev,
+ &acp63_pdm_component,
+ &acp63_pdm_dai_driver, 1);
+ if (status) {
+ dev_err(&pdev->dev, "Fail to register acp pdm dai\n");
+
+ return -ENODEV;
+ }
+ pm_runtime_set_autosuspend_delay(&pdev->dev, ACP_SUSPEND_DELAY_MS);
+ pm_runtime_use_autosuspend(&pdev->dev);
+ pm_runtime_mark_last_busy(&pdev->dev);
+ pm_runtime_set_active(&pdev->dev);
+ pm_runtime_enable(&pdev->dev);
+ return 0;
+}
+
+static void acp63_pdm_audio_remove(struct platform_device *pdev)
+{
+ pm_runtime_disable(&pdev->dev);
+}
+
+static int acp63_pdm_resume(struct device *dev)
+{
+ struct pdm_dev_data *adata;
+ struct snd_pcm_runtime *runtime;
+ struct pdm_stream_instance *rtd;
+ u32 period_bytes, buffer_len;
+
+ adata = dev_get_drvdata(dev);
+ if (adata->capture_stream && adata->capture_stream->runtime) {
+ runtime = adata->capture_stream->runtime;
+ rtd = runtime->private_data;
+ period_bytes = frames_to_bytes(runtime, runtime->period_size);
+ buffer_len = frames_to_bytes(runtime, runtime->buffer_size);
+ acp63_config_dma(rtd, SNDRV_PCM_STREAM_CAPTURE);
+ acp63_init_pdm_ring_buffer(PDM_MEM_WINDOW_START, buffer_len,
+ period_bytes, adata->acp63_base);
+ }
+ acp63_enable_pdm_interrupts(adata);
+ return 0;
+}
+
+static int acp63_pdm_suspend(struct device *dev)
+{
+ struct pdm_dev_data *adata;
+
+ adata = dev_get_drvdata(dev);
+ acp63_disable_pdm_interrupts(adata);
+ return 0;
+}
+
+static int acp63_pdm_runtime_resume(struct device *dev)
+{
+ struct pdm_dev_data *adata;
+
+ adata = dev_get_drvdata(dev);
+ acp63_enable_pdm_interrupts(adata);
+ return 0;
+}
+
+static const struct dev_pm_ops acp63_pdm_pm_ops = {
+ RUNTIME_PM_OPS(acp63_pdm_suspend, acp63_pdm_runtime_resume, NULL)
+ SYSTEM_SLEEP_PM_OPS(acp63_pdm_suspend, acp63_pdm_resume)
+};
+
+static struct platform_driver acp63_pdm_dma_driver = {
+ .probe = acp63_pdm_audio_probe,
+ .remove = acp63_pdm_audio_remove,
+ .driver = {
+ .name = "acp_ps_pdm_dma",
+ .pm = pm_ptr(&acp63_pdm_pm_ops),
+ },
+};
+
+module_platform_driver(acp63_pdm_dma_driver);
+
+MODULE_AUTHOR("Syed.SabaKareem@amd.com");
+MODULE_DESCRIPTION("AMD common PDM Driver for ACP6.3, ACP7,0 & ACP7.1 platforms");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/sound/soc/amd/ps/ps-sdw-dma.c b/sound/soc/amd/ps/ps-sdw-dma.c
new file mode 100644
index 000000000..f27ebbd21
--- /dev/null
+++ b/sound/soc/amd/ps/ps-sdw-dma.c
@@ -0,0 +1,804 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * AMD ALSA SoC common SoundWire DMA Driver for ACP6.3, ACP7.0 and ACP7.1
+ * platforms.
+ *
+ * Copyright 2023, 2025 Advanced Micro Devices, Inc.
+ */
+
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dai.h>
+#include <linux/pm_runtime.h>
+#include <linux/soundwire/sdw_amd.h>
+#include "acp63.h"
+
+#define DRV_NAME "amd_ps_sdw_dma"
+
+static struct sdw_dma_ring_buf_reg acp63_sdw0_dma_reg[ACP63_SDW0_DMA_MAX_STREAMS] = {
+ {ACP_AUDIO0_TX_DMA_SIZE, ACP_AUDIO0_TX_FIFOADDR, ACP_AUDIO0_TX_FIFOSIZE,
+ ACP_AUDIO0_TX_RINGBUFSIZE, ACP_AUDIO0_TX_RINGBUFADDR, ACP_AUDIO0_TX_INTR_WATERMARK_SIZE,
+ ACP_AUDIO0_TX_LINEARPOSITIONCNTR_LOW, ACP_AUDIO0_TX_LINEARPOSITIONCNTR_HIGH},
+ {ACP_AUDIO1_TX_DMA_SIZE, ACP_AUDIO1_TX_FIFOADDR, ACP_AUDIO1_TX_FIFOSIZE,
+ ACP_AUDIO1_TX_RINGBUFSIZE, ACP_AUDIO1_TX_RINGBUFADDR, ACP_AUDIO1_TX_INTR_WATERMARK_SIZE,
+ ACP_AUDIO1_TX_LINEARPOSITIONCNTR_LOW, ACP_AUDIO1_TX_LINEARPOSITIONCNTR_HIGH},
+ {ACP_AUDIO2_TX_DMA_SIZE, ACP_AUDIO2_TX_FIFOADDR, ACP_AUDIO2_TX_FIFOSIZE,
+ ACP_AUDIO2_TX_RINGBUFSIZE, ACP_AUDIO2_TX_RINGBUFADDR, ACP_AUDIO2_TX_INTR_WATERMARK_SIZE,
+ ACP_AUDIO2_TX_LINEARPOSITIONCNTR_LOW, ACP_AUDIO2_TX_LINEARPOSITIONCNTR_HIGH},
+ {ACP_AUDIO0_RX_DMA_SIZE, ACP_AUDIO0_RX_FIFOADDR, ACP_AUDIO0_RX_FIFOSIZE,
+ ACP_AUDIO0_RX_RINGBUFSIZE, ACP_AUDIO0_RX_RINGBUFADDR, ACP_AUDIO0_RX_INTR_WATERMARK_SIZE,
+ ACP_AUDIO0_RX_LINEARPOSITIONCNTR_LOW, ACP_AUDIO0_RX_LINEARPOSITIONCNTR_HIGH},
+ {ACP_AUDIO1_RX_DMA_SIZE, ACP_AUDIO1_RX_FIFOADDR, ACP_AUDIO1_RX_FIFOSIZE,
+ ACP_AUDIO1_RX_RINGBUFSIZE, ACP_AUDIO1_RX_RINGBUFADDR, ACP_AUDIO1_RX_INTR_WATERMARK_SIZE,
+ ACP_AUDIO1_RX_LINEARPOSITIONCNTR_LOW, ACP_AUDIO1_RX_LINEARPOSITIONCNTR_HIGH},
+ {ACP_AUDIO2_RX_DMA_SIZE, ACP_AUDIO2_RX_FIFOADDR, ACP_AUDIO2_RX_FIFOSIZE,
+ ACP_AUDIO2_RX_RINGBUFSIZE, ACP_AUDIO2_RX_RINGBUFADDR, ACP_AUDIO2_RX_INTR_WATERMARK_SIZE,
+ ACP_AUDIO2_RX_LINEARPOSITIONCNTR_LOW, ACP_AUDIO2_RX_LINEARPOSITIONCNTR_HIGH}
+};
+
+/*
+ * SDW1 instance supports one TX stream and one RX stream.
+ * For TX/RX streams DMA registers programming for SDW1 instance, it uses ACP_P1_AUDIO1 register
+ * set as per hardware register documentation
+ */
+static struct sdw_dma_ring_buf_reg acp63_sdw1_dma_reg[ACP63_SDW1_DMA_MAX_STREAMS] = {
+ {ACP_P1_AUDIO1_TX_DMA_SIZE, ACP_P1_AUDIO1_TX_FIFOADDR, ACP_P1_AUDIO1_TX_FIFOSIZE,
+ ACP_P1_AUDIO1_TX_RINGBUFSIZE, ACP_P1_AUDIO1_TX_RINGBUFADDR,
+ ACP_P1_AUDIO1_TX_INTR_WATERMARK_SIZE,
+ ACP_P1_AUDIO1_TX_LINEARPOSITIONCNTR_LOW, ACP_P1_AUDIO1_TX_LINEARPOSITIONCNTR_HIGH},
+ {ACP_P1_AUDIO1_RX_DMA_SIZE, ACP_P1_AUDIO1_RX_FIFOADDR, ACP_P1_AUDIO1_RX_FIFOSIZE,
+ ACP_P1_AUDIO1_RX_RINGBUFSIZE, ACP_P1_AUDIO1_RX_RINGBUFADDR,
+ ACP_P1_AUDIO1_RX_INTR_WATERMARK_SIZE,
+ ACP_P1_AUDIO1_RX_LINEARPOSITIONCNTR_LOW, ACP_P1_AUDIO1_RX_LINEARPOSITIONCNTR_HIGH},
+};
+
+static u32 acp63_sdw0_dma_enable_reg[ACP63_SDW0_DMA_MAX_STREAMS] = {
+ ACP_SW0_AUDIO0_TX_EN,
+ ACP_SW0_AUDIO1_TX_EN,
+ ACP_SW0_AUDIO2_TX_EN,
+ ACP_SW0_AUDIO0_RX_EN,
+ ACP_SW0_AUDIO1_RX_EN,
+ ACP_SW0_AUDIO2_RX_EN,
+};
+
+/*
+ * SDW1 instance supports one TX stream and one RX stream.
+ * For TX/RX streams DMA enable register programming for SDW1 instance,
+ * it uses ACP_SW1_AUDIO1_TX_EN and ACP_SW1_AUDIO1_RX_EN registers
+ * as per hardware register documentation.
+ */
+static u32 acp63_sdw1_dma_enable_reg[ACP63_SDW1_DMA_MAX_STREAMS] = {
+ ACP_SW1_AUDIO1_TX_EN,
+ ACP_SW1_AUDIO1_RX_EN,
+};
+
+static struct sdw_dma_ring_buf_reg acp70_sdw0_dma_reg[ACP70_SDW0_DMA_MAX_STREAMS] = {
+ {ACP_AUDIO0_TX_DMA_SIZE, ACP_AUDIO0_TX_FIFOADDR, ACP_AUDIO0_TX_FIFOSIZE,
+ ACP_AUDIO0_TX_RINGBUFSIZE, ACP_AUDIO0_TX_RINGBUFADDR, ACP_AUDIO0_TX_INTR_WATERMARK_SIZE,
+ ACP_AUDIO0_TX_LINEARPOSITIONCNTR_LOW, ACP_AUDIO0_TX_LINEARPOSITIONCNTR_HIGH},
+ {ACP_AUDIO1_TX_DMA_SIZE, ACP_AUDIO1_TX_FIFOADDR, ACP_AUDIO1_TX_FIFOSIZE,
+ ACP_AUDIO1_TX_RINGBUFSIZE, ACP_AUDIO1_TX_RINGBUFADDR, ACP_AUDIO1_TX_INTR_WATERMARK_SIZE,
+ ACP_AUDIO1_TX_LINEARPOSITIONCNTR_LOW, ACP_AUDIO1_TX_LINEARPOSITIONCNTR_HIGH},
+ {ACP_AUDIO2_TX_DMA_SIZE, ACP_AUDIO2_TX_FIFOADDR, ACP_AUDIO2_TX_FIFOSIZE,
+ ACP_AUDIO2_TX_RINGBUFSIZE, ACP_AUDIO2_TX_RINGBUFADDR, ACP_AUDIO2_TX_INTR_WATERMARK_SIZE,
+ ACP_AUDIO2_TX_LINEARPOSITIONCNTR_LOW, ACP_AUDIO2_TX_LINEARPOSITIONCNTR_HIGH},
+ {ACP_AUDIO0_RX_DMA_SIZE, ACP_AUDIO0_RX_FIFOADDR, ACP_AUDIO0_RX_FIFOSIZE,
+ ACP_AUDIO0_RX_RINGBUFSIZE, ACP_AUDIO0_RX_RINGBUFADDR, ACP_AUDIO0_RX_INTR_WATERMARK_SIZE,
+ ACP_AUDIO0_RX_LINEARPOSITIONCNTR_LOW, ACP_AUDIO0_RX_LINEARPOSITIONCNTR_HIGH},
+ {ACP_AUDIO1_RX_DMA_SIZE, ACP_AUDIO1_RX_FIFOADDR, ACP_AUDIO1_RX_FIFOSIZE,
+ ACP_AUDIO1_RX_RINGBUFSIZE, ACP_AUDIO1_RX_RINGBUFADDR, ACP_AUDIO1_RX_INTR_WATERMARK_SIZE,
+ ACP_AUDIO1_RX_LINEARPOSITIONCNTR_LOW, ACP_AUDIO1_RX_LINEARPOSITIONCNTR_HIGH},
+ {ACP_AUDIO2_RX_DMA_SIZE, ACP_AUDIO2_RX_FIFOADDR, ACP_AUDIO2_RX_FIFOSIZE,
+ ACP_AUDIO2_RX_RINGBUFSIZE, ACP_AUDIO2_RX_RINGBUFADDR, ACP_AUDIO2_RX_INTR_WATERMARK_SIZE,
+ ACP_AUDIO2_RX_LINEARPOSITIONCNTR_LOW, ACP_AUDIO2_RX_LINEARPOSITIONCNTR_HIGH}
+};
+
+static struct sdw_dma_ring_buf_reg acp70_sdw1_dma_reg[ACP70_SDW1_DMA_MAX_STREAMS] = {
+ {ACP_P1_AUDIO0_TX_DMA_SIZE, ACP_P1_AUDIO0_TX_FIFOADDR, ACP_P1_AUDIO0_TX_FIFOSIZE,
+ ACP_P1_AUDIO0_TX_RINGBUFSIZE, ACP_P1_AUDIO0_TX_RINGBUFADDR,
+ ACP_P1_AUDIO0_TX_INTR_WATERMARK_SIZE,
+ ACP_P1_AUDIO0_TX_LINEARPOSITIONCNTR_LOW, ACP_P1_AUDIO0_TX_LINEARPOSITIONCNTR_HIGH},
+ {ACP_P1_AUDIO1_TX_DMA_SIZE, ACP_P1_AUDIO1_TX_FIFOADDR, ACP_P1_AUDIO1_TX_FIFOSIZE,
+ ACP_P1_AUDIO1_TX_RINGBUFSIZE, ACP_P1_AUDIO1_TX_RINGBUFADDR,
+ ACP_P1_AUDIO1_TX_INTR_WATERMARK_SIZE,
+ ACP_P1_AUDIO1_TX_LINEARPOSITIONCNTR_LOW, ACP_P1_AUDIO1_TX_LINEARPOSITIONCNTR_HIGH},
+ {ACP_P1_AUDIO2_TX_DMA_SIZE, ACP_P1_AUDIO2_TX_FIFOADDR, ACP_P1_AUDIO2_TX_FIFOSIZE,
+ ACP_P1_AUDIO2_TX_RINGBUFSIZE, ACP_P1_AUDIO2_TX_RINGBUFADDR,
+ ACP_P1_AUDIO2_TX_INTR_WATERMARK_SIZE,
+ ACP_P1_AUDIO2_TX_LINEARPOSITIONCNTR_LOW, ACP_P1_AUDIO2_TX_LINEARPOSITIONCNTR_HIGH},
+ {ACP_P1_AUDIO0_RX_DMA_SIZE, ACP_P1_AUDIO0_RX_FIFOADDR, ACP_P1_AUDIO0_RX_FIFOSIZE,
+ ACP_P1_AUDIO0_RX_RINGBUFSIZE, ACP_P1_AUDIO0_RX_RINGBUFADDR,
+ ACP_P1_AUDIO0_RX_INTR_WATERMARK_SIZE,
+ ACP_P1_AUDIO0_RX_LINEARPOSITIONCNTR_LOW, ACP_P1_AUDIO0_RX_LINEARPOSITIONCNTR_HIGH},
+ {ACP_P1_AUDIO1_RX_DMA_SIZE, ACP_P1_AUDIO1_RX_FIFOADDR, ACP_P1_AUDIO1_RX_FIFOSIZE,
+ ACP_P1_AUDIO1_RX_RINGBUFSIZE, ACP_P1_AUDIO1_RX_RINGBUFADDR,
+ ACP_P1_AUDIO1_RX_INTR_WATERMARK_SIZE,
+ ACP_P1_AUDIO1_RX_LINEARPOSITIONCNTR_LOW, ACP_P1_AUDIO1_RX_LINEARPOSITIONCNTR_HIGH},
+ {ACP_P1_AUDIO2_RX_DMA_SIZE, ACP_P1_AUDIO2_RX_FIFOADDR, ACP_P1_AUDIO2_RX_FIFOSIZE,
+ ACP_P1_AUDIO2_RX_RINGBUFSIZE, ACP_P1_AUDIO2_RX_RINGBUFADDR,
+ ACP_P1_AUDIO2_RX_INTR_WATERMARK_SIZE,
+ ACP_P1_AUDIO2_RX_LINEARPOSITIONCNTR_LOW, ACP_P1_AUDIO2_RX_LINEARPOSITIONCNTR_HIGH}
+};
+
+static u32 acp70_sdw0_dma_enable_reg[ACP70_SDW0_DMA_MAX_STREAMS] = {
+ ACP70_SW0_AUDIO0_TX_EN,
+ ACP70_SW0_AUDIO1_TX_EN,
+ ACP70_SW0_AUDIO2_TX_EN,
+ ACP70_SW0_AUDIO0_RX_EN,
+ ACP70_SW0_AUDIO1_RX_EN,
+ ACP70_SW0_AUDIO2_RX_EN,
+};
+
+static u32 acp70_sdw1_dma_enable_reg[ACP70_SDW1_DMA_MAX_STREAMS] = {
+ ACP70_SW1_AUDIO0_TX_EN,
+ ACP70_SW1_AUDIO1_TX_EN,
+ ACP70_SW1_AUDIO2_TX_EN,
+ ACP70_SW1_AUDIO0_RX_EN,
+ ACP70_SW1_AUDIO1_RX_EN,
+ ACP70_SW1_AUDIO2_RX_EN,
+};
+
+static const struct snd_pcm_hardware acp63_sdw_hardware_playback = {
+ .info = SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_BLOCK_TRANSFER |
+ SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
+ SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE,
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_48000,
+ .rate_min = 48000,
+ .rate_max = 48000,
+ .buffer_bytes_max = SDW_PLAYBACK_MAX_NUM_PERIODS * SDW_PLAYBACK_MAX_PERIOD_SIZE,
+ .period_bytes_min = SDW_PLAYBACK_MIN_PERIOD_SIZE,
+ .period_bytes_max = SDW_PLAYBACK_MAX_PERIOD_SIZE,
+ .periods_min = SDW_PLAYBACK_MIN_NUM_PERIODS,
+ .periods_max = SDW_PLAYBACK_MAX_NUM_PERIODS,
+};
+
+static const struct snd_pcm_hardware acp63_sdw_hardware_capture = {
+ .info = SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_BLOCK_TRANSFER |
+ SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
+ SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE,
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_48000,
+ .rate_min = 48000,
+ .rate_max = 48000,
+ .buffer_bytes_max = SDW_CAPTURE_MAX_NUM_PERIODS * SDW_CAPTURE_MAX_PERIOD_SIZE,
+ .period_bytes_min = SDW_CAPTURE_MIN_PERIOD_SIZE,
+ .period_bytes_max = SDW_CAPTURE_MAX_PERIOD_SIZE,
+ .periods_min = SDW_CAPTURE_MIN_NUM_PERIODS,
+ .periods_max = SDW_CAPTURE_MAX_NUM_PERIODS,
+};
+
+static void acp63_enable_disable_sdw_dma_interrupts(void __iomem *acp_base, u32 irq_mask,
+ u32 irq_mask1, bool enable)
+{
+ u32 ext_intr_cntl, ext_intr_cntl1;
+
+ if (enable) {
+ ext_intr_cntl = readl(acp_base + ACP_EXTERNAL_INTR_CNTL);
+ ext_intr_cntl |= irq_mask;
+ writel(ext_intr_cntl, acp_base + ACP_EXTERNAL_INTR_CNTL);
+ ext_intr_cntl1 = readl(acp_base + ACP_EXTERNAL_INTR_CNTL1);
+ ext_intr_cntl1 |= irq_mask1;
+ writel(ext_intr_cntl1, acp_base + ACP_EXTERNAL_INTR_CNTL1);
+ } else {
+ ext_intr_cntl = readl(acp_base + ACP_EXTERNAL_INTR_CNTL);
+ ext_intr_cntl &= ~irq_mask;
+ writel(ext_intr_cntl, acp_base + ACP_EXTERNAL_INTR_CNTL);
+ ext_intr_cntl1 = readl(acp_base + ACP_EXTERNAL_INTR_CNTL1);
+ ext_intr_cntl1 &= ~irq_mask1;
+ writel(ext_intr_cntl1, acp_base + ACP_EXTERNAL_INTR_CNTL1);
+ }
+}
+
+static void acp63_config_dma(struct acp_sdw_dma_stream *stream, void __iomem *acp_base,
+ u32 stream_id)
+{
+ u16 page_idx;
+ u32 low, high, val;
+ u32 sdw_dma_pte_offset;
+ dma_addr_t addr;
+
+ addr = stream->dma_addr;
+ sdw_dma_pte_offset = SDW_PTE_OFFSET(stream->instance);
+ val = sdw_dma_pte_offset + (stream_id * ACP_SDW_PTE_OFFSET);
+
+ /* Group Enable */
+ writel(ACP_SDW_SRAM_PTE_OFFSET | BIT(31), acp_base + ACPAXI2AXI_ATU_BASE_ADDR_GRP_2);
+ writel(PAGE_SIZE_4K_ENABLE, acp_base + ACPAXI2AXI_ATU_PAGE_SIZE_GRP_2);
+ for (page_idx = 0; page_idx < stream->num_pages; page_idx++) {
+ /* Load the low address of page int ACP SRAM through SRBM */
+ low = lower_32_bits(addr);
+ high = upper_32_bits(addr);
+
+ writel(low, acp_base + ACP_SCRATCH_REG_0 + val);
+ high |= BIT(31);
+ writel(high, acp_base + ACP_SCRATCH_REG_0 + val + 4);
+ val += 8;
+ addr += PAGE_SIZE;
+ }
+ writel(0x1, acp_base + ACPAXI2AXI_ATU_CTRL);
+}
+
+static int acp63_configure_sdw_ringbuffer(void __iomem *acp_base, u32 stream_id, u32 size,
+ u32 manager_instance, u32 acp_rev)
+{
+ u32 reg_dma_size;
+ u32 reg_fifo_addr;
+ u32 reg_fifo_size;
+ u32 reg_ring_buf_size;
+ u32 reg_ring_buf_addr;
+ u32 sdw_fifo_addr;
+ u32 sdw_fifo_offset;
+ u32 sdw_ring_buf_addr;
+ u32 sdw_ring_buf_size;
+ u32 sdw_mem_window_offset;
+
+ switch (acp_rev) {
+ case ACP63_PCI_REV:
+ switch (manager_instance) {
+ case ACP_SDW0:
+ reg_dma_size = acp63_sdw0_dma_reg[stream_id].reg_dma_size;
+ reg_fifo_addr = acp63_sdw0_dma_reg[stream_id].reg_fifo_addr;
+ reg_fifo_size = acp63_sdw0_dma_reg[stream_id].reg_fifo_size;
+ reg_ring_buf_size = acp63_sdw0_dma_reg[stream_id].reg_ring_buf_size;
+ reg_ring_buf_addr = acp63_sdw0_dma_reg[stream_id].reg_ring_buf_addr;
+ break;
+ case ACP_SDW1:
+ reg_dma_size = acp63_sdw1_dma_reg[stream_id].reg_dma_size;
+ reg_fifo_addr = acp63_sdw1_dma_reg[stream_id].reg_fifo_addr;
+ reg_fifo_size = acp63_sdw1_dma_reg[stream_id].reg_fifo_size;
+ reg_ring_buf_size = acp63_sdw1_dma_reg[stream_id].reg_ring_buf_size;
+ reg_ring_buf_addr = acp63_sdw1_dma_reg[stream_id].reg_ring_buf_addr;
+ break;
+ default:
+ return -EINVAL;
+ }
+ break;
+ case ACP70_PCI_REV:
+ case ACP71_PCI_REV:
+ case ACP72_PCI_REV:
+ switch (manager_instance) {
+ case ACP_SDW0:
+ reg_dma_size = acp70_sdw0_dma_reg[stream_id].reg_dma_size;
+ reg_fifo_addr = acp70_sdw0_dma_reg[stream_id].reg_fifo_addr;
+ reg_fifo_size = acp70_sdw0_dma_reg[stream_id].reg_fifo_size;
+ reg_ring_buf_size = acp70_sdw0_dma_reg[stream_id].reg_ring_buf_size;
+ reg_ring_buf_addr = acp70_sdw0_dma_reg[stream_id].reg_ring_buf_addr;
+ break;
+ case ACP_SDW1:
+ reg_dma_size = acp70_sdw1_dma_reg[stream_id].reg_dma_size;
+ reg_fifo_addr = acp70_sdw1_dma_reg[stream_id].reg_fifo_addr;
+ reg_fifo_size = acp70_sdw1_dma_reg[stream_id].reg_fifo_size;
+ reg_ring_buf_size = acp70_sdw1_dma_reg[stream_id].reg_ring_buf_size;
+ reg_ring_buf_addr = acp70_sdw1_dma_reg[stream_id].reg_ring_buf_addr;
+ break;
+ default:
+ return -EINVAL;
+ }
+ break;
+ default:
+ return -EINVAL;
+ }
+ sdw_fifo_offset = ACP_SDW_FIFO_OFFSET(manager_instance);
+ sdw_mem_window_offset = SDW_MEM_WINDOW_START(manager_instance);
+ sdw_fifo_addr = sdw_fifo_offset + (stream_id * SDW_FIFO_OFFSET);
+ sdw_ring_buf_addr = sdw_mem_window_offset + (stream_id * ACP_SDW_RING_BUFF_ADDR_OFFSET);
+ sdw_ring_buf_size = size;
+ writel(sdw_ring_buf_size, acp_base + reg_ring_buf_size);
+ writel(sdw_ring_buf_addr, acp_base + reg_ring_buf_addr);
+ writel(sdw_fifo_addr, acp_base + reg_fifo_addr);
+ writel(SDW_DMA_SIZE, acp_base + reg_dma_size);
+ writel(SDW_FIFO_SIZE, acp_base + reg_fifo_size);
+ return 0;
+}
+
+static int acp63_sdw_dma_open(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime;
+ struct acp_sdw_dma_stream *stream;
+ struct snd_soc_dai *cpu_dai;
+ struct amd_sdw_manager *amd_manager;
+ struct snd_soc_pcm_runtime *prtd = snd_soc_substream_to_rtd(substream);
+ int ret;
+
+ runtime = substream->runtime;
+ cpu_dai = snd_soc_rtd_to_cpu(prtd, 0);
+ amd_manager = snd_soc_dai_get_drvdata(cpu_dai);
+ stream = kzalloc_obj(*stream);
+ if (!stream)
+ return -ENOMEM;
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ runtime->hw = acp63_sdw_hardware_playback;
+ else
+ runtime->hw = acp63_sdw_hardware_capture;
+ ret = snd_pcm_hw_constraint_integer(runtime,
+ SNDRV_PCM_HW_PARAM_PERIODS);
+ if (ret < 0) {
+ dev_err(component->dev, "set integer constraint failed\n");
+ kfree(stream);
+ return ret;
+ }
+
+ stream->stream_id = cpu_dai->id;
+ stream->instance = amd_manager->instance;
+ runtime->private_data = stream;
+ return ret;
+}
+
+static int acp63_sdw_dma_hw_params(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct acp_sdw_dma_stream *stream;
+ struct sdw_dma_dev_data *sdw_data;
+ u32 period_bytes;
+ u32 water_mark_size_reg;
+ u32 irq_mask, ext_intr_ctrl;
+ u64 size;
+ u32 stream_id;
+ u32 acp_ext_intr_cntl_reg;
+ int ret;
+
+ sdw_data = dev_get_drvdata(component->dev);
+ stream = substream->runtime->private_data;
+ if (!stream)
+ return -EINVAL;
+ stream_id = stream->stream_id;
+ switch (sdw_data->acp_rev) {
+ case ACP63_PCI_REV:
+ switch (stream->instance) {
+ case ACP_SDW0:
+ sdw_data->acp63_sdw0_dma_stream[stream_id] = substream;
+ water_mark_size_reg = acp63_sdw0_dma_reg[stream_id].water_mark_size_reg;
+ acp_ext_intr_cntl_reg = ACP_EXTERNAL_INTR_CNTL;
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ irq_mask = BIT(ACP63_SDW0_DMA_TX_IRQ_MASK(stream_id));
+ else
+ irq_mask = BIT(ACP63_SDW0_DMA_RX_IRQ_MASK(stream_id));
+ break;
+ case ACP_SDW1:
+ sdw_data->acp63_sdw1_dma_stream[stream_id] = substream;
+ acp_ext_intr_cntl_reg = ACP_EXTERNAL_INTR_CNTL1;
+ water_mark_size_reg = acp63_sdw1_dma_reg[stream_id].water_mark_size_reg;
+ irq_mask = BIT(ACP63_SDW1_DMA_IRQ_MASK(stream_id));
+ break;
+ default:
+ return -EINVAL;
+ }
+ break;
+ case ACP70_PCI_REV:
+ case ACP71_PCI_REV:
+ case ACP72_PCI_REV:
+ switch (stream->instance) {
+ case ACP_SDW0:
+ sdw_data->acp70_sdw0_dma_stream[stream_id] = substream;
+ water_mark_size_reg = acp70_sdw0_dma_reg[stream_id].water_mark_size_reg;
+ acp_ext_intr_cntl_reg = ACP_EXTERNAL_INTR_CNTL;
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ irq_mask = BIT(ACP70_SDW0_DMA_TX_IRQ_MASK(stream_id));
+ else
+ irq_mask = BIT(ACP70_SDW0_DMA_RX_IRQ_MASK(stream_id));
+ break;
+ case ACP_SDW1:
+ sdw_data->acp70_sdw1_dma_stream[stream_id] = substream;
+ acp_ext_intr_cntl_reg = ACP_EXTERNAL_INTR_CNTL1;
+ water_mark_size_reg = acp70_sdw1_dma_reg[stream_id].water_mark_size_reg;
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ irq_mask = BIT(ACP70_SDW1_DMA_TX_IRQ_MASK(stream_id));
+ else
+ irq_mask = BIT(ACP70_SDW1_DMA_RX_IRQ_MASK(stream_id));
+
+ break;
+ default:
+ return -EINVAL;
+ }
+ break;
+ default:
+ return -EINVAL;
+ }
+ size = params_buffer_bytes(params);
+ period_bytes = params_period_bytes(params);
+ stream->dma_addr = substream->runtime->dma_addr;
+ stream->num_pages = (PAGE_ALIGN(size) >> PAGE_SHIFT);
+ acp63_config_dma(stream, sdw_data->acp_base, stream_id);
+ ret = acp63_configure_sdw_ringbuffer(sdw_data->acp_base, stream_id, size,
+ stream->instance, sdw_data->acp_rev);
+ if (ret) {
+ dev_err(component->dev, "Invalid DMA channel\n");
+ return -EINVAL;
+ }
+ ext_intr_ctrl = readl(sdw_data->acp_base + acp_ext_intr_cntl_reg);
+ ext_intr_ctrl |= irq_mask;
+ writel(ext_intr_ctrl, sdw_data->acp_base + acp_ext_intr_cntl_reg);
+ writel(period_bytes, sdw_data->acp_base + water_mark_size_reg);
+ return 0;
+}
+
+static u64 acp63_sdw_get_byte_count(struct acp_sdw_dma_stream *stream, void __iomem *acp_base,
+ u32 acp_rev)
+{
+ union acp_sdw_dma_count byte_count;
+ u32 pos_low_reg, pos_high_reg;
+
+ byte_count.bytescount = 0;
+ switch (acp_rev) {
+ case ACP63_PCI_REV:
+ switch (stream->instance) {
+ case ACP_SDW0:
+ pos_low_reg = acp63_sdw0_dma_reg[stream->stream_id].pos_low_reg;
+ pos_high_reg = acp63_sdw0_dma_reg[stream->stream_id].pos_high_reg;
+ break;
+ case ACP_SDW1:
+ pos_low_reg = acp63_sdw1_dma_reg[stream->stream_id].pos_low_reg;
+ pos_high_reg = acp63_sdw1_dma_reg[stream->stream_id].pos_high_reg;
+ break;
+ default:
+ goto POINTER_RETURN_BYTES;
+ }
+ break;
+ case ACP70_PCI_REV:
+ case ACP71_PCI_REV:
+ case ACP72_PCI_REV:
+ switch (stream->instance) {
+ case ACP_SDW0:
+ pos_low_reg = acp70_sdw0_dma_reg[stream->stream_id].pos_low_reg;
+ pos_high_reg = acp70_sdw0_dma_reg[stream->stream_id].pos_high_reg;
+ break;
+ case ACP_SDW1:
+ pos_low_reg = acp70_sdw1_dma_reg[stream->stream_id].pos_low_reg;
+ pos_high_reg = acp70_sdw1_dma_reg[stream->stream_id].pos_high_reg;
+ break;
+ default:
+ goto POINTER_RETURN_BYTES;
+ }
+ break;
+ default:
+ goto POINTER_RETURN_BYTES;
+ }
+ if (pos_low_reg) {
+ byte_count.bcount.high = readl(acp_base + pos_high_reg);
+ byte_count.bcount.low = readl(acp_base + pos_low_reg);
+ }
+POINTER_RETURN_BYTES:
+ return byte_count.bytescount;
+}
+
+static snd_pcm_uframes_t acp63_sdw_dma_pointer(struct snd_soc_component *comp,
+ struct snd_pcm_substream *substream)
+{
+ struct sdw_dma_dev_data *sdw_data;
+ struct acp_sdw_dma_stream *stream;
+ u32 pos, buffersize;
+ u64 bytescount;
+
+ sdw_data = dev_get_drvdata(comp->dev);
+ stream = substream->runtime->private_data;
+ buffersize = frames_to_bytes(substream->runtime,
+ substream->runtime->buffer_size);
+ bytescount = acp63_sdw_get_byte_count(stream, sdw_data->acp_base, sdw_data->acp_rev);
+ if (bytescount > stream->bytescount)
+ bytescount -= stream->bytescount;
+ pos = do_div(bytescount, buffersize);
+ return bytes_to_frames(substream->runtime, pos);
+}
+
+static int acp63_sdw_dma_new(struct snd_soc_component *component,
+ struct snd_soc_pcm_runtime *rtd)
+{
+ struct device *parent = component->dev->parent;
+
+ snd_pcm_set_managed_buffer_all(rtd->pcm, SNDRV_DMA_TYPE_DEV,
+ parent, SDW_MIN_BUFFER, SDW_MAX_BUFFER);
+ return 0;
+}
+
+static int acp63_sdw_dma_close(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ struct sdw_dma_dev_data *sdw_data;
+ struct acp_sdw_dma_stream *stream;
+
+ sdw_data = dev_get_drvdata(component->dev);
+ stream = substream->runtime->private_data;
+ if (!stream)
+ return -EINVAL;
+ switch (sdw_data->acp_rev) {
+ case ACP63_PCI_REV:
+ switch (stream->instance) {
+ case ACP_SDW0:
+ sdw_data->acp63_sdw0_dma_stream[stream->stream_id] = NULL;
+ break;
+ case ACP_SDW1:
+ sdw_data->acp63_sdw1_dma_stream[stream->stream_id] = NULL;
+ break;
+ default:
+ return -EINVAL;
+ }
+ break;
+ case ACP70_PCI_REV:
+ case ACP71_PCI_REV:
+ case ACP72_PCI_REV:
+ switch (stream->instance) {
+ case ACP_SDW0:
+ sdw_data->acp70_sdw0_dma_stream[stream->stream_id] = NULL;
+ break;
+ case ACP_SDW1:
+ sdw_data->acp70_sdw1_dma_stream[stream->stream_id] = NULL;
+ break;
+ default:
+ return -EINVAL;
+ }
+ break;
+ default:
+ return -EINVAL;
+ }
+ kfree(stream);
+ return 0;
+}
+
+static int acp63_sdw_dma_enable(struct snd_pcm_substream *substream,
+ void __iomem *acp_base, u32 acp_rev, bool sdw_dma_enable)
+{
+ struct acp_sdw_dma_stream *stream;
+ u32 stream_id;
+ u32 sdw_dma_en_reg;
+ u32 sdw_dma_en_stat_reg;
+ u32 sdw_dma_stat;
+ u32 dma_enable;
+
+ stream = substream->runtime->private_data;
+ stream_id = stream->stream_id;
+ switch (acp_rev) {
+ case ACP63_PCI_REV:
+ switch (stream->instance) {
+ case ACP_SDW0:
+ sdw_dma_en_reg = acp63_sdw0_dma_enable_reg[stream_id];
+ break;
+ case ACP_SDW1:
+ sdw_dma_en_reg = acp63_sdw1_dma_enable_reg[stream_id];
+ break;
+ default:
+ return -EINVAL;
+ }
+ break;
+ case ACP70_PCI_REV:
+ case ACP71_PCI_REV:
+ case ACP72_PCI_REV:
+ switch (stream->instance) {
+ case ACP_SDW0:
+ sdw_dma_en_reg = acp70_sdw0_dma_enable_reg[stream_id];
+ break;
+ case ACP_SDW1:
+ sdw_dma_en_reg = acp70_sdw1_dma_enable_reg[stream_id];
+ break;
+ default:
+ return -EINVAL;
+ }
+ break;
+ default:
+ return -EINVAL;
+ }
+ sdw_dma_en_stat_reg = sdw_dma_en_reg + 4;
+ dma_enable = sdw_dma_enable;
+ writel(dma_enable, acp_base + sdw_dma_en_reg);
+ return readl_poll_timeout(acp_base + sdw_dma_en_stat_reg, sdw_dma_stat,
+ (sdw_dma_stat == dma_enable), ACP_DELAY_US, ACP_COUNTER);
+}
+
+static int acp63_sdw_dma_trigger(struct snd_soc_component *comp,
+ struct snd_pcm_substream *substream,
+ int cmd)
+{
+ struct sdw_dma_dev_data *sdw_data;
+ int ret;
+
+ sdw_data = dev_get_drvdata(comp->dev);
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ ret = acp63_sdw_dma_enable(substream, sdw_data->acp_base, sdw_data->acp_rev, true);
+ break;
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ case SNDRV_PCM_TRIGGER_STOP:
+ ret = acp63_sdw_dma_enable(substream, sdw_data->acp_base, sdw_data->acp_rev, false);
+ break;
+ default:
+ ret = -EINVAL;
+ }
+ if (ret)
+ dev_err(comp->dev, "trigger %d failed: %d", cmd, ret);
+ return ret;
+}
+
+static const struct snd_soc_component_driver acp63_sdw_component = {
+ .name = DRV_NAME,
+ .open = acp63_sdw_dma_open,
+ .close = acp63_sdw_dma_close,
+ .hw_params = acp63_sdw_dma_hw_params,
+ .trigger = acp63_sdw_dma_trigger,
+ .pointer = acp63_sdw_dma_pointer,
+ .pcm_new = acp63_sdw_dma_new,
+ .use_dai_pcm_id = true,
+
+};
+
+static int acp63_sdw_platform_probe(struct platform_device *pdev)
+{
+ struct resource *res;
+ struct sdw_dma_dev_data *sdw_data;
+ struct acp63_dev_data *acp_data;
+ struct device *parent;
+ int status;
+
+ parent = pdev->dev.parent;
+ acp_data = dev_get_drvdata(parent);
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "IORESOURCE_MEM FAILED\n");
+ return -ENODEV;
+ }
+
+ sdw_data = devm_kzalloc(&pdev->dev, sizeof(*sdw_data), GFP_KERNEL);
+ if (!sdw_data)
+ return -ENOMEM;
+
+ sdw_data->acp_base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
+ if (!sdw_data->acp_base)
+ return -ENOMEM;
+
+ sdw_data->acp_lock = &acp_data->acp_lock;
+ sdw_data->acp_rev = acp_data->acp_rev;
+ dev_set_drvdata(&pdev->dev, sdw_data);
+ status = devm_snd_soc_register_component(&pdev->dev,
+ &acp63_sdw_component,
+ NULL, 0);
+ if (status) {
+ dev_err(&pdev->dev, "Fail to register sdw dma component\n");
+ return status;
+ }
+ pm_runtime_set_autosuspend_delay(&pdev->dev, ACP_SUSPEND_DELAY_MS);
+ pm_runtime_use_autosuspend(&pdev->dev);
+ pm_runtime_mark_last_busy(&pdev->dev);
+ pm_runtime_set_active(&pdev->dev);
+ pm_runtime_enable(&pdev->dev);
+ return 0;
+}
+
+static void acp63_sdw_platform_remove(struct platform_device *pdev)
+{
+ pm_runtime_disable(&pdev->dev);
+}
+
+static int acp63_restore_sdw_dma_config(struct sdw_dma_dev_data *sdw_data)
+{
+ struct acp_sdw_dma_stream *stream;
+ struct snd_pcm_substream *substream;
+ struct snd_pcm_runtime *runtime;
+ u32 period_bytes, buf_size, water_mark_size_reg;
+ u32 stream_count, irq_mask, irq_mask1;
+ int index, instance, ret;
+
+ irq_mask = ACP63_SDW_DMA_IRQ_MASK;
+ irq_mask1 = ACP63_P1_SDW_DMA_IRQ_MASK;
+ for (instance = 0; instance < AMD_SDW_MAX_MANAGERS; instance++) {
+ if (instance == ACP_SDW0)
+ stream_count = ACP63_SDW0_DMA_MAX_STREAMS;
+ else
+ stream_count = ACP63_SDW1_DMA_MAX_STREAMS;
+
+ for (index = 0; index < stream_count; index++) {
+ if (instance == ACP_SDW0) {
+ substream = sdw_data->acp63_sdw0_dma_stream[index];
+ water_mark_size_reg = acp63_sdw0_dma_reg[index].water_mark_size_reg;
+ } else {
+ substream = sdw_data->acp63_sdw1_dma_stream[index];
+ water_mark_size_reg = acp63_sdw1_dma_reg[index].water_mark_size_reg;
+ }
+
+ if (substream && substream->runtime) {
+ runtime = substream->runtime;
+ stream = runtime->private_data;
+ period_bytes = frames_to_bytes(runtime, runtime->period_size);
+ buf_size = frames_to_bytes(runtime, runtime->buffer_size);
+ acp63_config_dma(stream, sdw_data->acp_base, index);
+ ret = acp63_configure_sdw_ringbuffer(sdw_data->acp_base, index,
+ buf_size, instance,
+ ACP63_PCI_REV);
+ if (ret)
+ return ret;
+ writel(period_bytes, sdw_data->acp_base + water_mark_size_reg);
+ }
+ }
+ }
+ acp63_enable_disable_sdw_dma_interrupts(sdw_data->acp_base, irq_mask, irq_mask1, true);
+ return 0;
+}
+
+static int acp70_restore_sdw_dma_config(struct sdw_dma_dev_data *sdw_data)
+{
+ struct acp_sdw_dma_stream *stream;
+ struct snd_pcm_substream *substream;
+ struct snd_pcm_runtime *runtime;
+ u32 period_bytes, buf_size, water_mark_size_reg;
+ u32 stream_count, irq_mask, irq_mask1;
+ int index, instance, ret;
+
+ irq_mask = ACP70_SDW_DMA_IRQ_MASK;
+ irq_mask1 = ACP70_P1_SDW_DMA_IRQ_MASK;
+ stream_count = ACP70_SDW0_DMA_MAX_STREAMS;
+ for (instance = 0; instance < AMD_SDW_MAX_MANAGERS; instance++) {
+ for (index = 0; index < stream_count; index++) {
+ if (instance == ACP_SDW0) {
+ substream = sdw_data->acp70_sdw0_dma_stream[index];
+ water_mark_size_reg = acp70_sdw0_dma_reg[index].water_mark_size_reg;
+ } else {
+ substream = sdw_data->acp70_sdw1_dma_stream[index];
+ water_mark_size_reg = acp70_sdw1_dma_reg[index].water_mark_size_reg;
+ }
+
+ if (substream && substream->runtime) {
+ runtime = substream->runtime;
+ stream = runtime->private_data;
+ period_bytes = frames_to_bytes(runtime, runtime->period_size);
+ buf_size = frames_to_bytes(runtime, runtime->buffer_size);
+ acp63_config_dma(stream, sdw_data->acp_base, index);
+ ret = acp63_configure_sdw_ringbuffer(sdw_data->acp_base, index,
+ buf_size, instance,
+ sdw_data->acp_rev);
+ if (ret)
+ return ret;
+ writel(period_bytes, sdw_data->acp_base + water_mark_size_reg);
+ }
+ }
+ }
+ acp63_enable_disable_sdw_dma_interrupts(sdw_data->acp_base, irq_mask, irq_mask1, true);
+ return 0;
+}
+
+static int acp63_sdw_pcm_resume(struct device *dev)
+{
+ struct sdw_dma_dev_data *sdw_data;
+
+ sdw_data = dev_get_drvdata(dev);
+ if (sdw_data->acp_rev == ACP63_PCI_REV)
+ return acp63_restore_sdw_dma_config(sdw_data);
+ else
+ return acp70_restore_sdw_dma_config(sdw_data);
+}
+
+static const struct dev_pm_ops acp63_pm_ops = {
+ SYSTEM_SLEEP_PM_OPS(NULL, acp63_sdw_pcm_resume)
+};
+
+static struct platform_driver acp63_sdw_dma_driver = {
+ .probe = acp63_sdw_platform_probe,
+ .remove = acp63_sdw_platform_remove,
+ .driver = {
+ .name = "amd_ps_sdw_dma",
+ .pm = pm_ptr(&acp63_pm_ops),
+ },
+};
+
+module_platform_driver(acp63_sdw_dma_driver);
+
+MODULE_AUTHOR("Vijendar.Mukunda@amd.com");
+MODULE_DESCRIPTION("AMD common SDW DMA Driver for ACP6.3, ACP7.0 & ACP7.1 platforms");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRV_NAME);