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-rw-r--r--sound/soc/amd/yc/Makefile9
-rw-r--r--sound/soc/amd/yc/acp6x-mach.c417
-rw-r--r--sound/soc/amd/yc/acp6x-pdm-dma.c449
-rw-r--r--sound/soc/amd/yc/acp6x.h107
-rw-r--r--sound/soc/amd/yc/acp6x_chip_offset_byte.h444
-rw-r--r--sound/soc/amd/yc/pci-acp6x.c344
6 files changed, 1770 insertions, 0 deletions
diff --git a/sound/soc/amd/yc/Makefile b/sound/soc/amd/yc/Makefile
new file mode 100644
index 000000000..dc2974440
--- /dev/null
+++ b/sound/soc/amd/yc/Makefile
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0+
+# Yellow Carp platform Support
+snd-pci-acp6x-objs := pci-acp6x.o
+snd-acp6x-pdm-dma-objs := acp6x-pdm-dma.o
+snd-soc-acp6x-mach-objs := acp6x-mach.o
+
+obj-$(CONFIG_SND_SOC_AMD_ACP6x) += snd-pci-acp6x.o
+obj-$(CONFIG_SND_SOC_AMD_ACP6x) += snd-acp6x-pdm-dma.o
+obj-$(CONFIG_SND_SOC_AMD_YC_MACH) += snd-soc-acp6x-mach.o
diff --git a/sound/soc/amd/yc/acp6x-mach.c b/sound/soc/amd/yc/acp6x-mach.c
new file mode 100644
index 000000000..808d00282
--- /dev/null
+++ b/sound/soc/amd/yc/acp6x-mach.c
@@ -0,0 +1,417 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Machine driver for AMD Yellow Carp platform using DMIC
+ *
+ * Copyright 2021 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 <linux/acpi.h>
+
+#include "acp6x.h"
+
+#define DRV_NAME "acp_yc_mach"
+
+SND_SOC_DAILINK_DEF(acp6x_pdm,
+ DAILINK_COMP_ARRAY(COMP_CPU("acp_yc_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_yc_pdm_dma.0")));
+
+static struct snd_soc_dai_link acp6x_dai_pdm[] = {
+ {
+ .name = "acp6x-dmic-capture",
+ .stream_name = "DMIC capture",
+ .capture_only = 1,
+ SND_SOC_DAILINK_REG(acp6x_pdm, dmic_codec, pdm_platform),
+ },
+};
+
+static struct snd_soc_card acp6x_card = {
+ .name = "acp6x",
+ .owner = THIS_MODULE,
+ .dai_link = acp6x_dai_pdm,
+ .num_links = 1,
+};
+
+static const struct dmi_system_id yc_acp_quirk_table[] = {
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Dell G15 5525"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "21D0"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "21D0"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "21D1"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "21D2"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "21D3"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "21D4"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "21D5"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "21CF"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "21CG"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "21CQ"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "21CR"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "21CM"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "21CN"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "21CH"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "21CJ"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "21CK"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "21CL"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "21EF"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "21EM"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "21EN"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "21HY"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "21J5"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "21J6"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "82TL"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "82QF"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "82V2"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "82YM"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "82UG"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "UM5302TA"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "M5402RA"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Alienware"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Alienware m17 R5 AMD"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "TIMI"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Redmi Book Pro 14 2022"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "M6500RC"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "E1504FA"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "TIMI"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Redmi Book Pro 15 2022"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Razer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Blade 14 (2022) - RZ09-0427"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "RB"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Swift SFA16-41"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "IRBIS"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "15NBC1011"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "HP"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "OMEN by HP Gaming Laptop 16z-n000"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "HP"),
+ DMI_MATCH(DMI_BOARD_NAME, "8A42"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "HP"),
+ DMI_MATCH(DMI_BOARD_NAME, "8A43"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "HP"),
+ DMI_MATCH(DMI_BOARD_NAME, "8A22"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "System76"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "pang12"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "System76"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "pang13"),
+ }
+ },
+ {}
+};
+
+static int acp6x_probe(struct platform_device *pdev)
+{
+ const struct dmi_system_id *dmi_id;
+ struct acp6x_pdm *machine = NULL;
+ struct snd_soc_card *card;
+ struct acpi_device *adev;
+ int ret;
+
+ /* check the parent device's firmware node has _DSD or not */
+ adev = ACPI_COMPANION(pdev->dev.parent);
+ if (adev) {
+ const union acpi_object *obj;
+
+ if (!acpi_dev_get_property(adev, "AcpDmicConnected", ACPI_TYPE_INTEGER, &obj) &&
+ obj->integer.value == 1)
+ platform_set_drvdata(pdev, &acp6x_card);
+ }
+
+ /* check for any DMI overrides */
+ dmi_id = dmi_first_match(yc_acp_quirk_table);
+ if (dmi_id)
+ platform_set_drvdata(pdev, dmi_id->driver_data);
+
+ card = platform_get_drvdata(pdev);
+ if (!card)
+ return -ENODEV;
+ dev_info(&pdev->dev, "Enabling ACP DMIC support via %s", dmi_id ? "DMI" : "ACPI");
+ acp6x_card.dev = &pdev->dev;
+
+ snd_soc_card_set_drvdata(card, machine);
+ 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 acp6x_mach_driver = {
+ .driver = {
+ .name = "acp_yc_mach",
+ .pm = &snd_soc_pm_ops,
+ },
+ .probe = acp6x_probe,
+};
+
+module_platform_driver(acp6x_mach_driver);
+
+MODULE_AUTHOR("Vijendar.Mukunda@amd.com");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/sound/soc/amd/yc/acp6x-pdm-dma.c b/sound/soc/amd/yc/acp6x-pdm-dma.c
new file mode 100644
index 000000000..acecd6a4e
--- /dev/null
+++ b/sound/soc/amd/yc/acp6x-pdm-dma.c
@@ -0,0 +1,449 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * AMD ALSA SoC Yellow Carp PDM Driver
+ *
+ * Copyright 2021 Advanced Micro Devices, Inc.
+ */
+
+#include <linux/platform_device.h>
+#include <linux/module.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 "acp6x.h"
+
+#define DRV_NAME "acp_yc_pdm_dma"
+
+static const struct snd_pcm_hardware acp6x_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 acp6x_init_pdm_ring_buffer(u32 physical_addr, u32 buffer_size,
+ u32 watermark_size, void __iomem *acp_base)
+{
+ acp6x_writel(physical_addr, acp_base + ACP_WOV_RX_RINGBUFADDR);
+ acp6x_writel(buffer_size, acp_base + ACP_WOV_RX_RINGBUFSIZE);
+ acp6x_writel(watermark_size, acp_base + ACP_WOV_RX_INTR_WATERMARK_SIZE);
+ acp6x_writel(0x01, acp_base + ACPAXI2AXI_ATU_CTRL);
+}
+
+static void acp6x_enable_pdm_clock(void __iomem *acp_base)
+{
+ u32 pdm_clk_enable, pdm_ctrl;
+
+ pdm_clk_enable = ACP_PDM_CLK_FREQ_MASK;
+ pdm_ctrl = 0x00;
+
+ acp6x_writel(pdm_clk_enable, acp_base + ACP_WOV_CLK_CTRL);
+ pdm_ctrl = acp6x_readl(acp_base + ACP_WOV_MISC_CTRL);
+ pdm_ctrl |= ACP_WOV_MISC_CTRL_MASK;
+ acp6x_writel(pdm_ctrl, acp_base + ACP_WOV_MISC_CTRL);
+}
+
+static void acp6x_enable_pdm_interrupts(void __iomem *acp_base)
+{
+ u32 ext_int_ctrl;
+
+ ext_int_ctrl = acp6x_readl(acp_base + ACP_EXTERNAL_INTR_CNTL);
+ ext_int_ctrl |= PDM_DMA_INTR_MASK;
+ acp6x_writel(ext_int_ctrl, acp_base + ACP_EXTERNAL_INTR_CNTL);
+}
+
+static void acp6x_disable_pdm_interrupts(void __iomem *acp_base)
+{
+ u32 ext_int_ctrl;
+
+ ext_int_ctrl = acp6x_readl(acp_base + ACP_EXTERNAL_INTR_CNTL);
+ ext_int_ctrl &= ~PDM_DMA_INTR_MASK;
+ acp6x_writel(ext_int_ctrl, acp_base + ACP_EXTERNAL_INTR_CNTL);
+}
+
+static bool acp6x_check_pdm_dma_status(void __iomem *acp_base)
+{
+ bool pdm_dma_status;
+ u32 pdm_enable, pdm_dma_enable;
+
+ pdm_dma_status = false;
+ pdm_enable = acp6x_readl(acp_base + ACP_WOV_PDM_ENABLE);
+ pdm_dma_enable = acp6x_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 acp6x_start_pdm_dma(void __iomem *acp_base)
+{
+ u32 pdm_enable;
+ u32 pdm_dma_enable;
+ int timeout;
+
+ pdm_enable = 0x01;
+ pdm_dma_enable = 0x01;
+
+ acp6x_enable_pdm_clock(acp_base);
+ acp6x_writel(pdm_enable, acp_base + ACP_WOV_PDM_ENABLE);
+ acp6x_writel(pdm_dma_enable, acp_base + ACP_WOV_PDM_DMA_ENABLE);
+ timeout = 0;
+ while (++timeout < ACP_COUNTER) {
+ pdm_dma_enable = acp6x_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 acp6x_stop_pdm_dma(void __iomem *acp_base)
+{
+ u32 pdm_enable, pdm_dma_enable;
+ int timeout;
+
+ pdm_enable = 0x00;
+ pdm_dma_enable = 0x00;
+
+ pdm_enable = acp6x_readl(acp_base + ACP_WOV_PDM_ENABLE);
+ pdm_dma_enable = acp6x_readl(acp_base + ACP_WOV_PDM_DMA_ENABLE);
+ if (pdm_dma_enable & 0x01) {
+ pdm_dma_enable = 0x02;
+ acp6x_writel(pdm_dma_enable, acp_base + ACP_WOV_PDM_DMA_ENABLE);
+ timeout = 0;
+ while (++timeout < ACP_COUNTER) {
+ pdm_dma_enable = acp6x_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;
+ acp6x_writel(pdm_enable, acp_base + ACP_WOV_PDM_ENABLE);
+ }
+ acp6x_writel(0x01, acp_base + ACP_WOV_PDM_FIFO_FLUSH);
+ return 0;
+}
+
+static void acp6x_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 */
+ acp6x_writel(ACP_SRAM_PTE_OFFSET | BIT(31), rtd->acp6x_base +
+ ACPAXI2AXI_ATU_BASE_ADDR_GRP_1);
+ acp6x_writel(PAGE_SIZE_4K_ENABLE, rtd->acp6x_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);
+
+ acp6x_writel(low, rtd->acp6x_base + ACP_SCRATCH_REG_0 + val);
+ high |= BIT(31);
+ acp6x_writel(high, rtd->acp6x_base + ACP_SCRATCH_REG_0 + val + 4);
+ val += 8;
+ addr += PAGE_SIZE;
+ }
+}
+
+static int acp6x_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(sizeof(*pdm_data), GFP_KERNEL);
+ if (!pdm_data)
+ return -EINVAL;
+
+ if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
+ runtime->hw = acp6x_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;
+ }
+
+ acp6x_enable_pdm_interrupts(adata->acp6x_base);
+
+ if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
+ adata->capture_stream = substream;
+
+ pdm_data->acp6x_base = adata->acp6x_base;
+ runtime->private_data = pdm_data;
+ return ret;
+}
+
+static int acp6x_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);
+ acp6x_config_dma(rtd, substream->stream);
+ acp6x_init_pdm_ring_buffer(PDM_MEM_WINDOW_START, size,
+ period_bytes, rtd->acp6x_base);
+ return 0;
+}
+
+static u64 acp6x_pdm_get_byte_count(struct pdm_stream_instance *rtd,
+ int direction)
+{
+ union acp_pdm_dma_count byte_count;
+
+ byte_count.bcount.high =
+ acp6x_readl(rtd->acp6x_base + ACP_WOV_RX_LINEARPOSITIONCNTR_HIGH);
+ byte_count.bcount.low =
+ acp6x_readl(rtd->acp6x_base + ACP_WOV_RX_LINEARPOSITIONCNTR_LOW);
+ return byte_count.bytescount;
+}
+
+static snd_pcm_uframes_t acp6x_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 = acp6x_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 acp6x_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 acp6x_pdm_dma_close(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ struct pdm_dev_data *adata = dev_get_drvdata(component->dev);
+
+ acp6x_disable_pdm_interrupts(adata->acp6x_base);
+ adata->capture_stream = NULL;
+ return 0;
+}
+
+static int acp6x_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:
+ acp6x_writel(ch_mask, rtd->acp6x_base + ACP_WOV_PDM_NO_OF_CHANNELS);
+ acp6x_writel(PDM_DECIMATION_FACTOR, rtd->acp6x_base +
+ ACP_WOV_PDM_DECIMATION_FACTOR);
+ rtd->bytescount = acp6x_pdm_get_byte_count(rtd, substream->stream);
+ pdm_status = acp6x_check_pdm_dma_status(rtd->acp6x_base);
+ if (!pdm_status)
+ ret = acp6x_start_pdm_dma(rtd->acp6x_base);
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ pdm_status = acp6x_check_pdm_dma_status(rtd->acp6x_base);
+ if (pdm_status)
+ ret = acp6x_stop_pdm_dma(rtd->acp6x_base);
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+ return ret;
+}
+
+static const struct snd_soc_dai_ops acp6x_pdm_dai_ops = {
+ .trigger = acp6x_pdm_dai_trigger,
+};
+
+static struct snd_soc_dai_driver acp6x_pdm_dai_driver = {
+ .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 = &acp6x_pdm_dai_ops,
+};
+
+static const struct snd_soc_component_driver acp6x_pdm_component = {
+ .name = DRV_NAME,
+ .open = acp6x_pdm_dma_open,
+ .close = acp6x_pdm_dma_close,
+ .hw_params = acp6x_pdm_dma_hw_params,
+ .pointer = acp6x_pdm_dma_pointer,
+ .pcm_construct = acp6x_pdm_dma_new,
+ .legacy_dai_naming = 1,
+};
+
+static int acp6x_pdm_audio_probe(struct platform_device *pdev)
+{
+ struct resource *res;
+ struct pdm_dev_data *adata;
+ int status;
+
+ 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->acp6x_base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
+ if (!adata->acp6x_base)
+ return -ENOMEM;
+
+ adata->capture_stream = NULL;
+
+ dev_set_drvdata(&pdev->dev, adata);
+ status = devm_snd_soc_register_component(&pdev->dev,
+ &acp6x_pdm_component,
+ &acp6x_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_enable(&pdev->dev);
+ pm_runtime_allow(&pdev->dev);
+ return 0;
+}
+
+static int acp6x_pdm_audio_remove(struct platform_device *pdev)
+{
+ pm_runtime_disable(&pdev->dev);
+ return 0;
+}
+
+static int __maybe_unused acp6x_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);
+ acp6x_config_dma(rtd, SNDRV_PCM_STREAM_CAPTURE);
+ acp6x_init_pdm_ring_buffer(PDM_MEM_WINDOW_START, buffer_len,
+ period_bytes, adata->acp6x_base);
+ }
+ acp6x_enable_pdm_interrupts(adata->acp6x_base);
+ return 0;
+}
+
+static int __maybe_unused acp6x_pdm_suspend(struct device *dev)
+{
+ struct pdm_dev_data *adata;
+
+ adata = dev_get_drvdata(dev);
+ acp6x_disable_pdm_interrupts(adata->acp6x_base);
+ return 0;
+}
+
+static int __maybe_unused acp6x_pdm_runtime_resume(struct device *dev)
+{
+ struct pdm_dev_data *adata;
+
+ adata = dev_get_drvdata(dev);
+ acp6x_enable_pdm_interrupts(adata->acp6x_base);
+ return 0;
+}
+
+static const struct dev_pm_ops acp6x_pdm_pm_ops = {
+ SET_RUNTIME_PM_OPS(acp6x_pdm_suspend, acp6x_pdm_runtime_resume, NULL)
+ SET_SYSTEM_SLEEP_PM_OPS(acp6x_pdm_suspend, acp6x_pdm_resume)
+};
+
+static struct platform_driver acp6x_pdm_dma_driver = {
+ .probe = acp6x_pdm_audio_probe,
+ .remove = acp6x_pdm_audio_remove,
+ .driver = {
+ .name = "acp_yc_pdm_dma",
+ .pm = &acp6x_pdm_pm_ops,
+ },
+};
+
+module_platform_driver(acp6x_pdm_dma_driver);
+
+MODULE_AUTHOR("Vijendar.Mukunda@amd.com");
+MODULE_DESCRIPTION("AMD ACP6x YC PDM Driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/sound/soc/amd/yc/acp6x.h b/sound/soc/amd/yc/acp6x.h
new file mode 100644
index 000000000..74b596e68
--- /dev/null
+++ b/sound/soc/amd/yc/acp6x.h
@@ -0,0 +1,107 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * AMD ALSA SoC PDM Driver
+ *
+ * Copyright (C) 2021 Advanced Micro Devices, Inc. All rights reserved.
+ */
+
+#include "acp6x_chip_offset_byte.h"
+
+#define ACP_DEVICE_ID 0x15E2
+#define ACP6x_PHY_BASE_ADDRESS 0x1240000
+#define ACP6x_REG_START 0x1240000
+#define ACP6x_REG_END 0x1250200
+#define ACP6x_DEVS 3
+#define ACP6x_PDM_MODE 1
+
+#define ACP_SOFT_RESET_SOFTRESET_AUDDONE_MASK 0x00010001
+#define ACP_PGFSM_CNTL_POWER_ON_MASK 1
+#define ACP_PGFSM_CNTL_POWER_OFF_MASK 0
+#define ACP_PGFSM_STATUS_MASK 3
+#define ACP_POWERED_ON 0
+#define ACP_POWER_ON_IN_PROGRESS 1
+#define ACP_POWERED_OFF 2
+#define ACP_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_MISC_CTRL_MASK 0x10
+#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
+
+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,
+};
+
+struct pdm_dev_data {
+ u32 pdm_irq;
+ void __iomem *acp6x_base;
+ struct snd_pcm_substream *capture_stream;
+};
+
+struct pdm_stream_instance {
+ u16 num_pages;
+ u16 channels;
+ dma_addr_t dma_addr;
+ u64 bytescount;
+ void __iomem *acp6x_base;
+};
+
+union acp_pdm_dma_count {
+ struct {
+ u32 low;
+ u32 high;
+ } bcount;
+ u64 bytescount;
+};
+
+static inline u32 acp6x_readl(void __iomem *base_addr)
+{
+ return readl(base_addr - ACP6x_PHY_BASE_ADDRESS);
+}
+
+static inline void acp6x_writel(u32 val, void __iomem *base_addr)
+{
+ writel(val, base_addr - ACP6x_PHY_BASE_ADDRESS);
+}
diff --git a/sound/soc/amd/yc/acp6x_chip_offset_byte.h b/sound/soc/amd/yc/acp6x_chip_offset_byte.h
new file mode 100644
index 000000000..f05fb2dfb
--- /dev/null
+++ b/sound/soc/amd/yc/acp6x_chip_offset_byte.h
@@ -0,0 +1,444 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * AMD ACP 6.x Register Documentation
+ *
+ * Copyright 2021 Advanced Micro Devices, Inc.
+ */
+
+#ifndef _acp6x_OFFSET_HEADER
+#define _acp6x_OFFSET_HEADER
+
+/* Registers from ACP_DMA block */
+#define ACP_DMA_CNTL_0 0x1240000
+#define ACP_DMA_CNTL_1 0x1240004
+#define ACP_DMA_CNTL_2 0x1240008
+#define ACP_DMA_CNTL_3 0x124000C
+#define ACP_DMA_CNTL_4 0x1240010
+#define ACP_DMA_CNTL_5 0x1240014
+#define ACP_DMA_CNTL_6 0x1240018
+#define ACP_DMA_CNTL_7 0x124001C
+#define ACP_DMA_DSCR_STRT_IDX_0 0x1240020
+#define ACP_DMA_DSCR_STRT_IDX_1 0x1240024
+#define ACP_DMA_DSCR_STRT_IDX_2 0x1240028
+#define ACP_DMA_DSCR_STRT_IDX_3 0x124002C
+#define ACP_DMA_DSCR_STRT_IDX_4 0x1240030
+#define ACP_DMA_DSCR_STRT_IDX_5 0x1240034
+#define ACP_DMA_DSCR_STRT_IDX_6 0x1240038
+#define ACP_DMA_DSCR_STRT_IDX_7 0x124003C
+#define ACP_DMA_DSCR_CNT_0 0x1240040
+#define ACP_DMA_DSCR_CNT_1 0x1240044
+#define ACP_DMA_DSCR_CNT_2 0x1240048
+#define ACP_DMA_DSCR_CNT_3 0x124004C
+#define ACP_DMA_DSCR_CNT_4 0x1240050
+#define ACP_DMA_DSCR_CNT_5 0x1240054
+#define ACP_DMA_DSCR_CNT_6 0x1240058
+#define ACP_DMA_DSCR_CNT_7 0x124005C
+#define ACP_DMA_PRIO_0 0x1240060
+#define ACP_DMA_PRIO_1 0x1240064
+#define ACP_DMA_PRIO_2 0x1240068
+#define ACP_DMA_PRIO_3 0x124006C
+#define ACP_DMA_PRIO_4 0x1240070
+#define ACP_DMA_PRIO_5 0x1240074
+#define ACP_DMA_PRIO_6 0x1240078
+#define ACP_DMA_PRIO_7 0x124007C
+#define ACP_DMA_CUR_DSCR_0 0x1240080
+#define ACP_DMA_CUR_DSCR_1 0x1240084
+#define ACP_DMA_CUR_DSCR_2 0x1240088
+#define ACP_DMA_CUR_DSCR_3 0x124008C
+#define ACP_DMA_CUR_DSCR_4 0x1240090
+#define ACP_DMA_CUR_DSCR_5 0x1240094
+#define ACP_DMA_CUR_DSCR_6 0x1240098
+#define ACP_DMA_CUR_DSCR_7 0x124009C
+#define ACP_DMA_CUR_TRANS_CNT_0 0x12400A0
+#define ACP_DMA_CUR_TRANS_CNT_1 0x12400A4
+#define ACP_DMA_CUR_TRANS_CNT_2 0x12400A8
+#define ACP_DMA_CUR_TRANS_CNT_3 0x12400AC
+#define ACP_DMA_CUR_TRANS_CNT_4 0x12400B0
+#define ACP_DMA_CUR_TRANS_CNT_5 0x12400B4
+#define ACP_DMA_CUR_TRANS_CNT_6 0x12400B8
+#define ACP_DMA_CUR_TRANS_CNT_7 0x12400BC
+#define ACP_DMA_ERR_STS_0 0x12400C0
+#define ACP_DMA_ERR_STS_1 0x12400C4
+#define ACP_DMA_ERR_STS_2 0x12400C8
+#define ACP_DMA_ERR_STS_3 0x12400CC
+#define ACP_DMA_ERR_STS_4 0x12400D0
+#define ACP_DMA_ERR_STS_5 0x12400D4
+#define ACP_DMA_ERR_STS_6 0x12400D8
+#define ACP_DMA_ERR_STS_7 0x12400DC
+#define ACP_DMA_DESC_BASE_ADDR 0x12400E0
+#define ACP_DMA_DESC_MAX_NUM_DSCR 0x12400E4
+#define ACP_DMA_CH_STS 0x12400E8
+#define ACP_DMA_CH_GROUP 0x12400EC
+#define ACP_DMA_CH_RST_STS 0x12400F0
+
+/* Registers from ACP_AXI2AXIATU block */
+#define ACPAXI2AXI_ATU_PAGE_SIZE_GRP_1 0x1240C00
+#define ACPAXI2AXI_ATU_BASE_ADDR_GRP_1 0x1240C04
+#define ACPAXI2AXI_ATU_PAGE_SIZE_GRP_2 0x1240C08
+#define ACPAXI2AXI_ATU_BASE_ADDR_GRP_2 0x1240C0C
+#define ACPAXI2AXI_ATU_PAGE_SIZE_GRP_3 0x1240C10
+#define ACPAXI2AXI_ATU_BASE_ADDR_GRP_3 0x1240C14
+#define ACPAXI2AXI_ATU_PAGE_SIZE_GRP_4 0x1240C18
+#define ACPAXI2AXI_ATU_BASE_ADDR_GRP_4 0x1240C1C
+#define ACPAXI2AXI_ATU_PAGE_SIZE_GRP_5 0x1240C20
+#define ACPAXI2AXI_ATU_BASE_ADDR_GRP_5 0x1240C24
+#define ACPAXI2AXI_ATU_PAGE_SIZE_GRP_6 0x1240C28
+#define ACPAXI2AXI_ATU_BASE_ADDR_GRP_6 0x1240C2C
+#define ACPAXI2AXI_ATU_PAGE_SIZE_GRP_7 0x1240C30
+#define ACPAXI2AXI_ATU_BASE_ADDR_GRP_7 0x1240C34
+#define ACPAXI2AXI_ATU_PAGE_SIZE_GRP_8 0x1240C38
+#define ACPAXI2AXI_ATU_BASE_ADDR_GRP_8 0x1240C3C
+#define ACPAXI2AXI_ATU_CTRL 0x1240C40
+#define ACPAXI2AXI_ATU_PAGE_SIZE_GRP_9 0x1240C44
+#define ACPAXI2AXI_ATU_BASE_ADDR_GRP_9 0x1240C48
+#define ACPAXI2AXI_ATU_PAGE_SIZE_GRP_10 0x1240C4C
+#define ACPAXI2AXI_ATU_BASE_ADDR_GRP_10 0x1240C50
+#define ACPAXI2AXI_ATU_PAGE_SIZE_GRP_11 0x1240C54
+#define ACPAXI2AXI_ATU_BASE_ADDR_GRP_11 0x1240C58
+#define ACPAXI2AXI_ATU_PAGE_SIZE_GRP_12 0x1240C5C
+#define ACPAXI2AXI_ATU_BASE_ADDR_GRP_12 0x1240C60
+#define ACPAXI2AXI_ATU_PAGE_SIZE_GRP_13 0x1240C64
+#define ACPAXI2AXI_ATU_BASE_ADDR_GRP_13 0x1240C68
+#define ACPAXI2AXI_ATU_PAGE_SIZE_GRP_14 0x1240C6C
+#define ACPAXI2AXI_ATU_BASE_ADDR_GRP_14 0x1240C70
+#define ACPAXI2AXI_ATU_PAGE_SIZE_GRP_15 0x1240C74
+#define ACPAXI2AXI_ATU_BASE_ADDR_GRP_15 0x1240C78
+#define ACPAXI2AXI_ATU_PAGE_SIZE_GRP_16 0x1240C7C
+#define ACPAXI2AXI_ATU_BASE_ADDR_GRP_16 0x1240C80
+
+/* Registers from ACP_CLKRST block */
+#define ACP_SOFT_RESET 0x1241000
+#define ACP_CONTROL 0x1241004
+#define ACP_STATUS 0x1241008
+#define ACP_DYNAMIC_CG_MASTER_CONTROL 0x1241010
+#define ACP_ZSC_DSP_CTRL 0x1241014
+#define ACP_ZSC_STS 0x1241018
+#define ACP_PGFSM_CONTROL 0x1241024
+#define ACP_PGFSM_STATUS 0x1241028
+#define ACP_CLKMUX_SEL 0x124102C
+
+/* Registers from ACP_AON block */
+#define ACP_PME_EN 0x1241400
+#define ACP_DEVICE_STATE 0x1241404
+#define AZ_DEVICE_STATE 0x1241408
+#define ACP_PIN_CONFIG 0x1241440
+#define ACP_PAD_PULLUP_CTRL 0x1241444
+#define ACP_PAD_PULLDOWN_CTRL 0x1241448
+#define ACP_PAD_DRIVE_STRENGTH_CTRL 0x124144C
+#define ACP_PAD_SCHMEN_CTRL 0x1241450
+#define ACP_SW_PAD_KEEPER_EN 0x1241454
+#define ACP_SW_WAKE_EN 0x1241458
+#define ACP_I2S_WAKE_EN 0x124145C
+#define ACP_SW1_WAKE_EN 0x1241460
+
+/* Registers from ACP_P1_MISC block */
+#define ACP_EXTERNAL_INTR_ENB 0x1241A00
+#define ACP_EXTERNAL_INTR_CNTL 0x1241A04
+#define ACP_EXTERNAL_INTR_CNTL1 0x1241A08
+#define ACP_EXTERNAL_INTR_STAT 0x1241A0C
+#define ACP_EXTERNAL_INTR_STAT1 0x1241A10
+#define ACP_ERROR_STATUS 0x1241A4C
+#define ACP_P1_SW_I2S_ERROR_REASON 0x1241A50
+#define ACP_P1_SW_POS_TRACK_I2S_TX_CTRL 0x1241A6C
+#define ACP_P1_SW_I2S_TX_DMA_POS 0x1241A70
+#define ACP_P1_SW_POS_TRACK_I2S_RX_CTRL 0x1241A74
+#define ACP_P1_SW_I2S_RX_DMA_POS 0x1241A78
+#define ACP_P1_DMIC_I2S_GPIO_INTR_CTRL 0x1241A7C
+#define ACP_P1_DMIC_I2S_GPIO_INTR_STATUS 0x1241A80
+#define ACP_SCRATCH_REG_BASE_ADDR 0x1241A84
+#define ACP_P1_SW_POS_TRACK_BT_TX_CTRL 0x1241A88
+#define ACP_P1_SW_BT_TX_DMA_POS 0x1241A8C
+#define ACP_P1_SW_POS_TRACK_HS_TX_CTRL 0x1241A90
+#define ACP_P1_SW_HS_TX_DMA_POS 0x1241A94
+#define ACP_P1_SW_POS_TRACK_BT_RX_CTRL 0x1241A98
+#define ACP_P1_SW_BT_RX_DMA_POS 0x1241A9C
+#define ACP_P1_SW_POS_TRACK_HS_RX_CTRL 0x1241AA0
+#define ACP_P1_SW_HS_RX_DMA_POS 0x1241AA4
+
+/* Registers from ACP_AUDIO_BUFFERS block */
+#define ACP_I2S_RX_RINGBUFADDR 0x1242000
+#define ACP_I2S_RX_RINGBUFSIZE 0x1242004
+#define ACP_I2S_RX_LINKPOSITIONCNTR 0x1242008
+#define ACP_I2S_RX_FIFOADDR 0x124200C
+#define ACP_I2S_RX_FIFOSIZE 0x1242010
+#define ACP_I2S_RX_DMA_SIZE 0x1242014
+#define ACP_I2S_RX_LINEARPOSITIONCNTR_HIGH 0x1242018
+#define ACP_I2S_RX_LINEARPOSITIONCNTR_LOW 0x124201C
+#define ACP_I2S_RX_INTR_WATERMARK_SIZE 0x1242020
+#define ACP_I2S_TX_RINGBUFADDR 0x1242024
+#define ACP_I2S_TX_RINGBUFSIZE 0x1242028
+#define ACP_I2S_TX_LINKPOSITIONCNTR 0x124202C
+#define ACP_I2S_TX_FIFOADDR 0x1242030
+#define ACP_I2S_TX_FIFOSIZE 0x1242034
+#define ACP_I2S_TX_DMA_SIZE 0x1242038
+#define ACP_I2S_TX_LINEARPOSITIONCNTR_HIGH 0x124203C
+#define ACP_I2S_TX_LINEARPOSITIONCNTR_LOW 0x1242040
+#define ACP_I2S_TX_INTR_WATERMARK_SIZE 0x1242044
+#define ACP_BT_RX_RINGBUFADDR 0x1242048
+#define ACP_BT_RX_RINGBUFSIZE 0x124204C
+#define ACP_BT_RX_LINKPOSITIONCNTR 0x1242050
+#define ACP_BT_RX_FIFOADDR 0x1242054
+#define ACP_BT_RX_FIFOSIZE 0x1242058
+#define ACP_BT_RX_DMA_SIZE 0x124205C
+#define ACP_BT_RX_LINEARPOSITIONCNTR_HIGH 0x1242060
+#define ACP_BT_RX_LINEARPOSITIONCNTR_LOW 0x1242064
+#define ACP_BT_RX_INTR_WATERMARK_SIZE 0x1242068
+#define ACP_BT_TX_RINGBUFADDR 0x124206C
+#define ACP_BT_TX_RINGBUFSIZE 0x1242070
+#define ACP_BT_TX_LINKPOSITIONCNTR 0x1242074
+#define ACP_BT_TX_FIFOADDR 0x1242078
+#define ACP_BT_TX_FIFOSIZE 0x124207C
+#define ACP_BT_TX_DMA_SIZE 0x1242080
+#define ACP_BT_TX_LINEARPOSITIONCNTR_HIGH 0x1242084
+#define ACP_BT_TX_LINEARPOSITIONCNTR_LOW 0x1242088
+#define ACP_BT_TX_INTR_WATERMARK_SIZE 0x124208C
+#define ACP_HS_RX_RINGBUFADDR 0x1242090
+#define ACP_HS_RX_RINGBUFSIZE 0x1242094
+#define ACP_HS_RX_LINKPOSITIONCNTR 0x1242098
+#define ACP_HS_RX_FIFOADDR 0x124209C
+#define ACP_HS_RX_FIFOSIZE 0x12420A0
+#define ACP_HS_RX_DMA_SIZE 0x12420A4
+#define ACP_HS_RX_LINEARPOSITIONCNTR_HIGH 0x12420A8
+#define ACP_HS_RX_LINEARPOSITIONCNTR_LOW 0x12420AC
+#define ACP_HS_RX_INTR_WATERMARK_SIZE 0x12420B0
+#define ACP_HS_TX_RINGBUFADDR 0x12420B4
+#define ACP_HS_TX_RINGBUFSIZE 0x12420B8
+#define ACP_HS_TX_LINKPOSITIONCNTR 0x12420BC
+#define ACP_HS_TX_FIFOADDR 0x12420C0
+#define ACP_HS_TX_FIFOSIZE 0x12420C4
+#define ACP_HS_TX_DMA_SIZE 0x12420C8
+#define ACP_HS_TX_LINEARPOSITIONCNTR_HIGH 0x12420CC
+#define ACP_HS_TX_LINEARPOSITIONCNTR_LOW 0x12420D0
+#define ACP_HS_TX_INTR_WATERMARK_SIZE 0x12420D4
+
+/* Registers from ACP_I2S_TDM block */
+#define ACP_I2STDM_IER 0x1242400
+#define ACP_I2STDM_IRER 0x1242404
+#define ACP_I2STDM_RXFRMT 0x1242408
+#define ACP_I2STDM_ITER 0x124240C
+#define ACP_I2STDM_TXFRMT 0x1242410
+#define ACP_I2STDM0_MSTRCLKGEN 0x1242414
+#define ACP_I2STDM1_MSTRCLKGEN 0x1242418
+#define ACP_I2STDM2_MSTRCLKGEN 0x124241C
+#define ACP_I2STDM_REFCLKGEN 0x1242420
+
+/* Registers from ACP_BT_TDM block */
+#define ACP_BTTDM_IER 0x1242800
+#define ACP_BTTDM_IRER 0x1242804
+#define ACP_BTTDM_RXFRMT 0x1242808
+#define ACP_BTTDM_ITER 0x124280C
+#define ACP_BTTDM_TXFRMT 0x1242810
+#define ACP_HSTDM_IER 0x1242814
+#define ACP_HSTDM_IRER 0x1242818
+#define ACP_HSTDM_RXFRMT 0x124281C
+#define ACP_HSTDM_ITER 0x1242820
+#define ACP_HSTDM_TXFRMT 0x1242824
+
+/* Registers from ACP_WOV block */
+#define ACP_WOV_PDM_ENABLE 0x1242C04
+#define ACP_WOV_PDM_DMA_ENABLE 0x1242C08
+#define ACP_WOV_RX_RINGBUFADDR 0x1242C0C
+#define ACP_WOV_RX_RINGBUFSIZE 0x1242C10
+#define ACP_WOV_RX_LINKPOSITIONCNTR 0x1242C14
+#define ACP_WOV_RX_LINEARPOSITIONCNTR_HIGH 0x1242C18
+#define ACP_WOV_RX_LINEARPOSITIONCNTR_LOW 0x1242C1C
+#define ACP_WOV_RX_INTR_WATERMARK_SIZE 0x1242C20
+#define ACP_WOV_PDM_FIFO_FLUSH 0x1242C24
+#define ACP_WOV_PDM_NO_OF_CHANNELS 0x1242C28
+#define ACP_WOV_PDM_DECIMATION_FACTOR 0x1242C2C
+#define ACP_WOV_PDM_VAD_CTRL 0x1242C30
+#define ACP_WOV_WAKE 0x1242C54
+#define ACP_WOV_BUFFER_STATUS 0x1242C58
+#define ACP_WOV_MISC_CTRL 0x1242C5C
+#define ACP_WOV_CLK_CTRL 0x1242C60
+#define ACP_PDM_VAD_DYNAMIC_CLK_GATING_EN 0x1242C64
+#define ACP_WOV_ERROR_STATUS_REGISTER 0x1242C68
+#define ACP_PDM_CLKDIV 0x1242C6C
+
+/* Registers from ACP_P1_AUDIO_BUFFERS block */
+#define ACP_P1_I2S_RX_RINGBUFADDR 0x1243A00
+#define ACP_P1_I2S_RX_RINGBUFSIZE 0x1243A04
+#define ACP_P1_I2S_RX_LINKPOSITIONCNTR 0x1243A08
+#define ACP_P1_I2S_RX_FIFOADDR 0x1243A0C
+#define ACP_P1_I2S_RX_FIFOSIZE 0x1243A10
+#define ACP_P1_I2S_RX_DMA_SIZE 0x1243A14
+#define ACP_P1_I2S_RX_LINEARPOSITIONCNTR_HIGH 0x1243A18
+#define ACP_P1_I2S_RX_LINEARPOSITIONCNTR_LOW 0x1243A1C
+#define ACP_P1_I2S_RX_INTR_WATERMARK_SIZE 0x1243A20
+#define ACP_P1_I2S_TX_RINGBUFADDR 0x1243A24
+#define ACP_P1_I2S_TX_RINGBUFSIZE 0x1243A28
+#define ACP_P1_I2S_TX_LINKPOSITIONCNTR 0x1243A2C
+#define ACP_P1_I2S_TX_FIFOADDR 0x1243A30
+#define ACP_P1_I2S_TX_FIFOSIZE 0x1243A34
+#define ACP_P1_I2S_TX_DMA_SIZE 0x1243A38
+#define ACP_P1_I2S_TX_LINEARPOSITIONCNTR_HIGH 0x1243A3C
+#define ACP_P1_I2S_TX_LINEARPOSITIONCNTR_LOW 0x1243A40
+#define ACP_P1_I2S_TX_INTR_WATERMARK_SIZE 0x1243A44
+#define ACP_P1_BT_RX_RINGBUFADDR 0x1243A48
+#define ACP_P1_BT_RX_RINGBUFSIZE 0x1243A4C
+#define ACP_P1_BT_RX_LINKPOSITIONCNTR 0x1243A50
+#define ACP_P1_BT_RX_FIFOADDR 0x1243A54
+#define ACP_P1_BT_RX_FIFOSIZE 0x1243A58
+#define ACP_P1_BT_RX_DMA_SIZE 0x1243A5C
+#define ACP_P1_BT_RX_LINEARPOSITIONCNTR_HIGH 0x1243A60
+#define ACP_P1_BT_RX_LINEARPOSITIONCNTR_LOW 0x1243A64
+#define ACP_P1_BT_RX_INTR_WATERMARK_SIZE 0x1243A68
+#define ACP_P1_BT_TX_RINGBUFADDR 0x1243A6C
+#define ACP_P1_BT_TX_RINGBUFSIZE 0x1243A70
+#define ACP_P1_BT_TX_LINKPOSITIONCNTR 0x1243A74
+#define ACP_P1_BT_TX_FIFOADDR 0x1243A78
+#define ACP_P1_BT_TX_FIFOSIZE 0x1243A7C
+#define ACP_P1_BT_TX_DMA_SIZE 0x1243A80
+#define ACP_P1_BT_TX_LINEARPOSITIONCNTR_HIGH 0x1243A84
+#define ACP_P1_BT_TX_LINEARPOSITIONCNTR_LOW 0x1243A88
+#define ACP_P1_BT_TX_INTR_WATERMARK_SIZE 0x1243A8C
+#define ACP_P1_HS_RX_RINGBUFADDR 0x1243A90
+#define ACP_P1_HS_RX_RINGBUFSIZE 0x1243A94
+#define ACP_P1_HS_RX_LINKPOSITIONCNTR 0x1243A98
+#define ACP_P1_HS_RX_FIFOADDR 0x1243A9C
+#define ACP_P1_HS_RX_FIFOSIZE 0x1243AA0
+#define ACP_P1_HS_RX_DMA_SIZE 0x1243AA4
+#define ACP_P1_HS_RX_LINEARPOSITIONCNTR_HIGH 0x1243AA8
+#define ACP_P1_HS_RX_LINEARPOSITIONCNTR_LOW 0x1243AAC
+#define ACP_P1_HS_RX_INTR_WATERMARK_SIZE 0x1243AB0
+#define ACP_P1_HS_TX_RINGBUFADDR 0x1243AB4
+#define ACP_P1_HS_TX_RINGBUFSIZE 0x1243AB8
+#define ACP_P1_HS_TX_LINKPOSITIONCNTR 0x1243ABC
+#define ACP_P1_HS_TX_FIFOADDR 0x1243AC0
+#define ACP_P1_HS_TX_FIFOSIZE 0x1243AC4
+#define ACP_P1_HS_TX_DMA_SIZE 0x1243AC8
+#define ACP_P1_HS_TX_LINEARPOSITIONCNTR_HIGH 0x1243ACC
+#define ACP_P1_HS_TX_LINEARPOSITIONCNTR_LOW 0x1243AD0
+#define ACP_P1_HS_TX_INTR_WATERMARK_SIZE 0x1243AD4
+
+/* Registers from ACP_SCRATCH block */
+#define ACP_SCRATCH_REG_0 0x1250000
+#define ACP_SCRATCH_REG_1 0x1250004
+#define ACP_SCRATCH_REG_2 0x1250008
+#define ACP_SCRATCH_REG_3 0x125000C
+#define ACP_SCRATCH_REG_4 0x1250010
+#define ACP_SCRATCH_REG_5 0x1250014
+#define ACP_SCRATCH_REG_6 0x1250018
+#define ACP_SCRATCH_REG_7 0x125001C
+#define ACP_SCRATCH_REG_8 0x1250020
+#define ACP_SCRATCH_REG_9 0x1250024
+#define ACP_SCRATCH_REG_10 0x1250028
+#define ACP_SCRATCH_REG_11 0x125002C
+#define ACP_SCRATCH_REG_12 0x1250030
+#define ACP_SCRATCH_REG_13 0x1250034
+#define ACP_SCRATCH_REG_14 0x1250038
+#define ACP_SCRATCH_REG_15 0x125003C
+#define ACP_SCRATCH_REG_16 0x1250040
+#define ACP_SCRATCH_REG_17 0x1250044
+#define ACP_SCRATCH_REG_18 0x1250048
+#define ACP_SCRATCH_REG_19 0x125004C
+#define ACP_SCRATCH_REG_20 0x1250050
+#define ACP_SCRATCH_REG_21 0x1250054
+#define ACP_SCRATCH_REG_22 0x1250058
+#define ACP_SCRATCH_REG_23 0x125005C
+#define ACP_SCRATCH_REG_24 0x1250060
+#define ACP_SCRATCH_REG_25 0x1250064
+#define ACP_SCRATCH_REG_26 0x1250068
+#define ACP_SCRATCH_REG_27 0x125006C
+#define ACP_SCRATCH_REG_28 0x1250070
+#define ACP_SCRATCH_REG_29 0x1250074
+#define ACP_SCRATCH_REG_30 0x1250078
+#define ACP_SCRATCH_REG_31 0x125007C
+#define ACP_SCRATCH_REG_32 0x1250080
+#define ACP_SCRATCH_REG_33 0x1250084
+#define ACP_SCRATCH_REG_34 0x1250088
+#define ACP_SCRATCH_REG_35 0x125008C
+#define ACP_SCRATCH_REG_36 0x1250090
+#define ACP_SCRATCH_REG_37 0x1250094
+#define ACP_SCRATCH_REG_38 0x1250098
+#define ACP_SCRATCH_REG_39 0x125009C
+#define ACP_SCRATCH_REG_40 0x12500A0
+#define ACP_SCRATCH_REG_41 0x12500A4
+#define ACP_SCRATCH_REG_42 0x12500A8
+#define ACP_SCRATCH_REG_43 0x12500AC
+#define ACP_SCRATCH_REG_44 0x12500B0
+#define ACP_SCRATCH_REG_45 0x12500B4
+#define ACP_SCRATCH_REG_46 0x12500B8
+#define ACP_SCRATCH_REG_47 0x12500BC
+#define ACP_SCRATCH_REG_48 0x12500C0
+#define ACP_SCRATCH_REG_49 0x12500C4
+#define ACP_SCRATCH_REG_50 0x12500C8
+#define ACP_SCRATCH_REG_51 0x12500CC
+#define ACP_SCRATCH_REG_52 0x12500D0
+#define ACP_SCRATCH_REG_53 0x12500D4
+#define ACP_SCRATCH_REG_54 0x12500D8
+#define ACP_SCRATCH_REG_55 0x12500DC
+#define ACP_SCRATCH_REG_56 0x12500E0
+#define ACP_SCRATCH_REG_57 0x12500E4
+#define ACP_SCRATCH_REG_58 0x12500E8
+#define ACP_SCRATCH_REG_59 0x12500EC
+#define ACP_SCRATCH_REG_60 0x12500F0
+#define ACP_SCRATCH_REG_61 0x12500F4
+#define ACP_SCRATCH_REG_62 0x12500F8
+#define ACP_SCRATCH_REG_63 0x12500FC
+#define ACP_SCRATCH_REG_64 0x1250100
+#define ACP_SCRATCH_REG_65 0x1250104
+#define ACP_SCRATCH_REG_66 0x1250108
+#define ACP_SCRATCH_REG_67 0x125010C
+#define ACP_SCRATCH_REG_68 0x1250110
+#define ACP_SCRATCH_REG_69 0x1250114
+#define ACP_SCRATCH_REG_70 0x1250118
+#define ACP_SCRATCH_REG_71 0x125011C
+#define ACP_SCRATCH_REG_72 0x1250120
+#define ACP_SCRATCH_REG_73 0x1250124
+#define ACP_SCRATCH_REG_74 0x1250128
+#define ACP_SCRATCH_REG_75 0x125012C
+#define ACP_SCRATCH_REG_76 0x1250130
+#define ACP_SCRATCH_REG_77 0x1250134
+#define ACP_SCRATCH_REG_78 0x1250138
+#define ACP_SCRATCH_REG_79 0x125013C
+#define ACP_SCRATCH_REG_80 0x1250140
+#define ACP_SCRATCH_REG_81 0x1250144
+#define ACP_SCRATCH_REG_82 0x1250148
+#define ACP_SCRATCH_REG_83 0x125014C
+#define ACP_SCRATCH_REG_84 0x1250150
+#define ACP_SCRATCH_REG_85 0x1250154
+#define ACP_SCRATCH_REG_86 0x1250158
+#define ACP_SCRATCH_REG_87 0x125015C
+#define ACP_SCRATCH_REG_88 0x1250160
+#define ACP_SCRATCH_REG_89 0x1250164
+#define ACP_SCRATCH_REG_90 0x1250168
+#define ACP_SCRATCH_REG_91 0x125016C
+#define ACP_SCRATCH_REG_92 0x1250170
+#define ACP_SCRATCH_REG_93 0x1250174
+#define ACP_SCRATCH_REG_94 0x1250178
+#define ACP_SCRATCH_REG_95 0x125017C
+#define ACP_SCRATCH_REG_96 0x1250180
+#define ACP_SCRATCH_REG_97 0x1250184
+#define ACP_SCRATCH_REG_98 0x1250188
+#define ACP_SCRATCH_REG_99 0x125018C
+#define ACP_SCRATCH_REG_100 0x1250190
+#define ACP_SCRATCH_REG_101 0x1250194
+#define ACP_SCRATCH_REG_102 0x1250198
+#define ACP_SCRATCH_REG_103 0x125019C
+#define ACP_SCRATCH_REG_104 0x12501A0
+#define ACP_SCRATCH_REG_105 0x12501A4
+#define ACP_SCRATCH_REG_106 0x12501A8
+#define ACP_SCRATCH_REG_107 0x12501AC
+#define ACP_SCRATCH_REG_108 0x12501B0
+#define ACP_SCRATCH_REG_109 0x12501B4
+#define ACP_SCRATCH_REG_110 0x12501B8
+#define ACP_SCRATCH_REG_111 0x12501BC
+#define ACP_SCRATCH_REG_112 0x12501C0
+#define ACP_SCRATCH_REG_113 0x12501C4
+#define ACP_SCRATCH_REG_114 0x12501C8
+#define ACP_SCRATCH_REG_115 0x12501CC
+#define ACP_SCRATCH_REG_116 0x12501D0
+#define ACP_SCRATCH_REG_117 0x12501D4
+#define ACP_SCRATCH_REG_118 0x12501D8
+#define ACP_SCRATCH_REG_119 0x12501DC
+#define ACP_SCRATCH_REG_120 0x12501E0
+#define ACP_SCRATCH_REG_121 0x12501E4
+#define ACP_SCRATCH_REG_122 0x12501E8
+#define ACP_SCRATCH_REG_123 0x12501EC
+#define ACP_SCRATCH_REG_124 0x12501F0
+#define ACP_SCRATCH_REG_125 0x12501F4
+#define ACP_SCRATCH_REG_126 0x12501F8
+#define ACP_SCRATCH_REG_127 0x12501FC
+#define ACP_SCRATCH_REG_128 0x1250200
+#endif
diff --git a/sound/soc/amd/yc/pci-acp6x.c b/sound/soc/amd/yc/pci-acp6x.c
new file mode 100644
index 000000000..77c5fa1f7
--- /dev/null
+++ b/sound/soc/amd/yc/pci-acp6x.c
@@ -0,0 +1,344 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * AMD Yellow Carp ACP PCI Driver
+ *
+ * Copyright 2021 Advanced Micro Devices, Inc.
+ */
+
+#include <linux/pci.h>
+#include <linux/module.h>
+#include <linux/io.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <sound/pcm_params.h>
+#include <linux/pm_runtime.h>
+
+#include "acp6x.h"
+
+struct acp6x_dev_data {
+ void __iomem *acp6x_base;
+ struct resource *res;
+ bool acp6x_audio_mode;
+ struct platform_device *pdev[ACP6x_DEVS];
+};
+
+static int acp6x_power_on(void __iomem *acp_base)
+{
+ u32 val;
+ int timeout;
+
+ val = acp6x_readl(acp_base + ACP_PGFSM_STATUS);
+
+ if (!val)
+ return val;
+
+ if ((val & ACP_PGFSM_STATUS_MASK) != ACP_POWER_ON_IN_PROGRESS)
+ acp6x_writel(ACP_PGFSM_CNTL_POWER_ON_MASK, acp_base + ACP_PGFSM_CONTROL);
+ timeout = 0;
+ while (++timeout < 500) {
+ val = acp6x_readl(acp_base + ACP_PGFSM_STATUS);
+ if (!val)
+ return 0;
+ udelay(1);
+ }
+ return -ETIMEDOUT;
+}
+
+static int acp6x_reset(void __iomem *acp_base)
+{
+ u32 val;
+ int timeout;
+
+ acp6x_writel(1, acp_base + ACP_SOFT_RESET);
+ timeout = 0;
+ while (++timeout < 500) {
+ val = acp6x_readl(acp_base + ACP_SOFT_RESET);
+ if (val & ACP_SOFT_RESET_SOFTRESET_AUDDONE_MASK)
+ break;
+ cpu_relax();
+ }
+ acp6x_writel(0, acp_base + ACP_SOFT_RESET);
+ timeout = 0;
+ while (++timeout < 500) {
+ val = acp6x_readl(acp_base + ACP_SOFT_RESET);
+ if (!val)
+ return 0;
+ cpu_relax();
+ }
+ return -ETIMEDOUT;
+}
+
+static void acp6x_enable_interrupts(void __iomem *acp_base)
+{
+ acp6x_writel(0x01, acp_base + ACP_EXTERNAL_INTR_ENB);
+}
+
+static void acp6x_disable_interrupts(void __iomem *acp_base)
+{
+ acp6x_writel(ACP_EXT_INTR_STAT_CLEAR_MASK, acp_base +
+ ACP_EXTERNAL_INTR_STAT);
+ acp6x_writel(0x00, acp_base + ACP_EXTERNAL_INTR_CNTL);
+ acp6x_writel(0x00, acp_base + ACP_EXTERNAL_INTR_ENB);
+}
+
+static int acp6x_init(void __iomem *acp_base)
+{
+ int ret;
+
+ /* power on */
+ ret = acp6x_power_on(acp_base);
+ if (ret) {
+ pr_err("ACP power on failed\n");
+ return ret;
+ }
+ acp6x_writel(0x01, acp_base + ACP_CONTROL);
+ /* Reset */
+ ret = acp6x_reset(acp_base);
+ if (ret) {
+ pr_err("ACP reset failed\n");
+ return ret;
+ }
+ acp6x_writel(0x03, acp_base + ACP_CLKMUX_SEL);
+ acp6x_enable_interrupts(acp_base);
+ return 0;
+}
+
+static int acp6x_deinit(void __iomem *acp_base)
+{
+ int ret;
+
+ acp6x_disable_interrupts(acp_base);
+ /* Reset */
+ ret = acp6x_reset(acp_base);
+ if (ret) {
+ pr_err("ACP reset failed\n");
+ return ret;
+ }
+ acp6x_writel(0x00, acp_base + ACP_CLKMUX_SEL);
+ acp6x_writel(0x00, acp_base + ACP_CONTROL);
+ return 0;
+}
+
+static irqreturn_t acp6x_irq_handler(int irq, void *dev_id)
+{
+ struct acp6x_dev_data *adata;
+ struct pdm_dev_data *yc_pdm_data;
+ u32 val;
+
+ adata = dev_id;
+ if (!adata)
+ return IRQ_NONE;
+
+ val = acp6x_readl(adata->acp6x_base + ACP_EXTERNAL_INTR_STAT);
+ if (val & BIT(PDM_DMA_STAT)) {
+ yc_pdm_data = dev_get_drvdata(&adata->pdev[0]->dev);
+ acp6x_writel(BIT(PDM_DMA_STAT), adata->acp6x_base + ACP_EXTERNAL_INTR_STAT);
+ if (yc_pdm_data->capture_stream)
+ snd_pcm_period_elapsed(yc_pdm_data->capture_stream);
+ return IRQ_HANDLED;
+ }
+ return IRQ_NONE;
+}
+
+static int snd_acp6x_probe(struct pci_dev *pci,
+ const struct pci_device_id *pci_id)
+{
+ struct acp6x_dev_data *adata;
+ struct platform_device_info pdevinfo[ACP6x_DEVS];
+ int index = 0;
+ int val = 0x00;
+ u32 addr;
+ unsigned int irqflags;
+ int ret;
+
+ irqflags = IRQF_SHARED;
+ /* Yellow Carp device check */
+ switch (pci->revision) {
+ case 0x60:
+ case 0x6f:
+ break;
+ default:
+ dev_dbg(&pci->dev, "acp6x 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 ACP3x audio");
+ if (ret < 0) {
+ dev_err(&pci->dev, "pci_request_regions failed\n");
+ goto disable_pci;
+ }
+
+ adata = devm_kzalloc(&pci->dev, sizeof(struct acp6x_dev_data),
+ GFP_KERNEL);
+ if (!adata) {
+ ret = -ENOMEM;
+ goto release_regions;
+ }
+
+ addr = pci_resource_start(pci, 0);
+ adata->acp6x_base = devm_ioremap(&pci->dev, addr,
+ pci_resource_len(pci, 0));
+ if (!adata->acp6x_base) {
+ ret = -ENOMEM;
+ goto release_regions;
+ }
+ pci_set_master(pci);
+ pci_set_drvdata(pci, adata);
+ ret = acp6x_init(adata->acp6x_base);
+ if (ret)
+ goto release_regions;
+ val = acp6x_readl(adata->acp6x_base + ACP_PIN_CONFIG);
+ switch (val) {
+ case ACP_CONFIG_0:
+ case ACP_CONFIG_1:
+ case ACP_CONFIG_2:
+ case ACP_CONFIG_3:
+ case ACP_CONFIG_9:
+ case ACP_CONFIG_15:
+ dev_info(&pci->dev, "Audio Mode %d\n", val);
+ break;
+ default:
+ adata->res = devm_kzalloc(&pci->dev,
+ sizeof(struct resource),
+ GFP_KERNEL);
+ if (!adata->res) {
+ ret = -ENOMEM;
+ goto de_init;
+ }
+
+ adata->res->name = "acp_iomem";
+ adata->res->flags = IORESOURCE_MEM;
+ adata->res->start = addr;
+ adata->res->end = addr + (ACP6x_REG_END - ACP6x_REG_START);
+
+ adata->acp6x_audio_mode = ACP6x_PDM_MODE;
+
+ memset(&pdevinfo, 0, sizeof(pdevinfo));
+ pdevinfo[0].name = "acp_yc_pdm_dma";
+ pdevinfo[0].id = 0;
+ pdevinfo[0].parent = &pci->dev;
+ pdevinfo[0].num_res = 1;
+ pdevinfo[0].res = adata->res;
+
+ pdevinfo[1].name = "dmic-codec";
+ pdevinfo[1].id = 0;
+ pdevinfo[1].parent = &pci->dev;
+
+ pdevinfo[2].name = "acp_yc_mach";
+ pdevinfo[2].id = 0;
+ pdevinfo[2].parent = &pci->dev;
+
+ for (index = 0; index < ACP6x_DEVS; index++) {
+ adata->pdev[index] =
+ platform_device_register_full(&pdevinfo[index]);
+ if (IS_ERR(adata->pdev[index])) {
+ dev_err(&pci->dev, "cannot register %s device\n",
+ pdevinfo[index].name);
+ ret = PTR_ERR(adata->pdev[index]);
+ goto unregister_devs;
+ }
+ }
+ break;
+ }
+ ret = devm_request_irq(&pci->dev, pci->irq, acp6x_irq_handler,
+ irqflags, "ACP_PCI_IRQ", adata);
+ if (ret) {
+ dev_err(&pci->dev, "ACP PCI IRQ request failed\n");
+ goto unregister_devs;
+ }
+ 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;
+unregister_devs:
+ for (--index; index >= 0; index--)
+ platform_device_unregister(adata->pdev[index]);
+de_init:
+ if (acp6x_deinit(adata->acp6x_base))
+ 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 __maybe_unused snd_acp6x_suspend(struct device *dev)
+{
+ struct acp6x_dev_data *adata;
+ int ret;
+
+ adata = dev_get_drvdata(dev);
+ ret = acp6x_deinit(adata->acp6x_base);
+ if (ret)
+ dev_err(dev, "ACP de-init failed\n");
+ return ret;
+}
+
+static int __maybe_unused snd_acp6x_resume(struct device *dev)
+{
+ struct acp6x_dev_data *adata;
+ int ret;
+
+ adata = dev_get_drvdata(dev);
+ ret = acp6x_init(adata->acp6x_base);
+ if (ret)
+ dev_err(dev, "ACP init failed\n");
+ return ret;
+}
+
+static const struct dev_pm_ops acp6x_pm = {
+ SET_RUNTIME_PM_OPS(snd_acp6x_suspend, snd_acp6x_resume, NULL)
+ SET_SYSTEM_SLEEP_PM_OPS(snd_acp6x_suspend, snd_acp6x_resume)
+};
+
+static void snd_acp6x_remove(struct pci_dev *pci)
+{
+ struct acp6x_dev_data *adata;
+ int ret, index;
+
+ adata = pci_get_drvdata(pci);
+ if (adata->acp6x_audio_mode == ACP6x_PDM_MODE) {
+ for (index = 0; index < ACP6x_DEVS; index++)
+ platform_device_unregister(adata->pdev[index]);
+ }
+ ret = acp6x_deinit(adata->acp6x_base);
+ 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_acp6x_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_acp6x_ids);
+
+static struct pci_driver yc_acp6x_driver = {
+ .name = KBUILD_MODNAME,
+ .id_table = snd_acp6x_ids,
+ .probe = snd_acp6x_probe,
+ .remove = snd_acp6x_remove,
+ .driver = {
+ .pm = &acp6x_pm,
+ }
+};
+
+module_pci_driver(yc_acp6x_driver);
+
+MODULE_AUTHOR("Vijendar.Mukunda@amd.com");
+MODULE_DESCRIPTION("AMD ACP Yellow Carp PCI driver");
+MODULE_LICENSE("GPL v2");
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-02 23:54:29 +0000