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authorKees Cook <kees+treewide@kernel.org>2026-09-02 15:31:14 -0700
committerKees Cook <kees@kernel.org>2026-09-04 21:37:00 -0700
commit3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d (patch)
treec65086f9bdcd48c6360fb7cb4598bca084da1f32 /sound/soc/amd/ps
downloadlinux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.tar.gz
linux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.zip
treewide: refresh kmalloc_obj() conversionsgrafted
This is another run of the Coccinelle script for converting kmalloc() family of allocations to kmalloc_obj() via the existing rules in scripts/coccinelle/api/kmalloc_objs.cocci This catches both the set of kmalloc() uses added since the first kmalloc_obj() conversions in v7.0 and adds a large group missed in the first pass due to Coccinelle not interacting well with the cleanup.h scoped_...() family of macros[1]. I worked around this with spatch's "--macro-file" argument to a file with all the scoped_...() macros mapped to Coccinelle's YACFE_ITERATOR[2] as that was the closest viable control flow indicator I could find. Build tested allmodconfig on x86, arm64, arm, loongarch, mips, powerpc, riscv, and s390 with no new warnings. Link: https://lore.kernel.org/lkml/202609021314.8A9C0B8@keescook/ [1] Link: https://github.com/coccinelle/coccinelle/blob/master/standard.h [2] Signed-off-by: Kees Cook <kees+treewide@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);