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- // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
- //
- // This file is provided under a dual BSD/GPLv2 license. When using or
- // redistributing this file, you may do so under either license.
- //
- // Copyright(c) 2021 Advanced Micro Devices, Inc. All rights reserved.
- //
- // Authors: Ajit Kumar Pandey <[email protected]>
- /*
- * PCI interface for Renoir ACP device
- */
- #include <linux/module.h>
- #include <linux/pci.h>
- #include <linux/platform_device.h>
- #include <sound/sof.h>
- #include <sound/soc-acpi.h>
- #include "../ops.h"
- #include "../sof-pci-dev.h"
- #include "../../amd/mach-config.h"
- #include "acp.h"
- #include "acp-dsp-offset.h"
- #define ACP3x_REG_START 0x1240000
- #define ACP3x_REG_END 0x125C000
- static struct platform_device *dmic_dev;
- static struct platform_device *pdev;
- static const struct resource renoir_res[] = {
- {
- .start = 0,
- .end = ACP3x_REG_END - ACP3x_REG_START,
- .name = "acp_mem",
- .flags = IORESOURCE_MEM,
- },
- {
- .start = 0,
- .end = 0,
- .name = "acp_dai_irq",
- .flags = IORESOURCE_IRQ,
- },
- };
- static const struct sof_amd_acp_desc renoir_chip_info = {
- .rev = 3,
- .host_bridge_id = HOST_BRIDGE_CZN,
- .i2s_mode = 0x04,
- .pgfsm_base = ACP3X_PGFSM_BASE,
- .ext_intr_stat = ACP3X_EXT_INTR_STAT,
- .dsp_intr_base = ACP3X_DSP_SW_INTR_BASE,
- .sram_pte_offset = ACP3X_SRAM_PTE_OFFSET,
- .i2s_pin_config_offset = ACP3X_I2S_PIN_CONFIG,
- .hw_semaphore_offset = ACP3X_AXI2DAGB_SEM_0,
- .acp_clkmux_sel = ACP3X_CLKMUX_SEL,
- };
- static const struct sof_dev_desc renoir_desc = {
- .machines = snd_soc_acpi_amd_sof_machines,
- .use_acpi_target_states = true,
- .resindex_lpe_base = 0,
- .resindex_pcicfg_base = -1,
- .resindex_imr_base = -1,
- .irqindex_host_ipc = -1,
- .chip_info = &renoir_chip_info,
- .ipc_supported_mask = BIT(SOF_IPC),
- .ipc_default = SOF_IPC,
- .default_fw_path = {
- [SOF_IPC] = "amd/sof",
- },
- .default_tplg_path = {
- [SOF_IPC] = "amd/sof-tplg",
- },
- .default_fw_filename = {
- [SOF_IPC] = "sof-rn.ri",
- },
- .nocodec_tplg_filename = "sof-acp.tplg",
- .ops = &sof_renoir_ops,
- .ops_init = sof_renoir_ops_init,
- };
- static int acp_pci_rn_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
- {
- struct platform_device_info pdevinfo;
- struct device *dev = &pci->dev;
- const struct resource *res_i2s;
- struct resource *res;
- unsigned int flag, i, addr;
- int ret;
- if (pci->revision != ACP_RN_PCI_ID)
- return -ENODEV;
- flag = snd_amd_acp_find_config(pci);
- if (flag != FLAG_AMD_SOF && flag != FLAG_AMD_SOF_ONLY_DMIC)
- return -ENODEV;
- ret = sof_pci_probe(pci, pci_id);
- if (ret != 0)
- return ret;
- dmic_dev = platform_device_register_data(dev, "dmic-codec", PLATFORM_DEVID_NONE, NULL, 0);
- if (IS_ERR(dmic_dev)) {
- dev_err(dev, "failed to create DMIC device\n");
- sof_pci_remove(pci);
- return PTR_ERR(dmic_dev);
- }
- /* Register platform device only if flag set to FLAG_AMD_SOF_ONLY_DMIC */
- if (flag != FLAG_AMD_SOF_ONLY_DMIC)
- return 0;
- addr = pci_resource_start(pci, 0);
- res = devm_kzalloc(&pci->dev, sizeof(struct resource) * ARRAY_SIZE(renoir_res), GFP_KERNEL);
- if (!res) {
- sof_pci_remove(pci);
- platform_device_unregister(dmic_dev);
- return -ENOMEM;
- }
- res_i2s = renoir_res;
- for (i = 0; i < ARRAY_SIZE(renoir_res); i++, res_i2s++) {
- res[i].name = res_i2s->name;
- res[i].flags = res_i2s->flags;
- res[i].start = addr + res_i2s->start;
- res[i].end = addr + res_i2s->end;
- if (res_i2s->flags == IORESOURCE_IRQ) {
- res[i].start = pci->irq;
- res[i].end = res[i].start;
- }
- }
- memset(&pdevinfo, 0, sizeof(pdevinfo));
- /*
- * We have common PCI driver probe for ACP device but we have to support I2S without SOF
- * for some distributions. Register platform device that will be used to support non dsp
- * ACP's audio ends points on some machines.
- */
- pdevinfo.name = "acp_asoc_renoir";
- pdevinfo.id = 0;
- pdevinfo.parent = &pci->dev;
- pdevinfo.num_res = ARRAY_SIZE(renoir_res);
- pdevinfo.res = &res[0];
- pdev = platform_device_register_full(&pdevinfo);
- if (IS_ERR(pdev)) {
- dev_err(&pci->dev, "cannot register %s device\n", pdevinfo.name);
- sof_pci_remove(pci);
- platform_device_unregister(dmic_dev);
- ret = PTR_ERR(pdev);
- }
- return ret;
- };
- static void acp_pci_rn_remove(struct pci_dev *pci)
- {
- if (dmic_dev)
- platform_device_unregister(dmic_dev);
- if (pdev)
- platform_device_unregister(pdev);
- return sof_pci_remove(pci);
- }
- /* PCI IDs */
- static const struct pci_device_id rn_pci_ids[] = {
- { PCI_DEVICE(PCI_VENDOR_ID_AMD, ACP_PCI_DEV_ID),
- .driver_data = (unsigned long)&renoir_desc},
- { 0, }
- };
- MODULE_DEVICE_TABLE(pci, rn_pci_ids);
- /* pci_driver definition */
- static struct pci_driver snd_sof_pci_amd_rn_driver = {
- .name = KBUILD_MODNAME,
- .id_table = rn_pci_ids,
- .probe = acp_pci_rn_probe,
- .remove = acp_pci_rn_remove,
- .driver = {
- .pm = &sof_pci_pm,
- },
- };
- module_pci_driver(snd_sof_pci_amd_rn_driver);
- MODULE_LICENSE("Dual BSD/GPL");
- MODULE_IMPORT_NS(SND_SOC_SOF_AMD_COMMON);
- MODULE_IMPORT_NS(SND_SOC_SOF_PCI_DEV);
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