1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) 2 // 3 // This file is provided under a dual BSD/GPLv2 license. When using or 4 // redistributing this file, you may do so under either license. 5 // 6 // Copyright(c) 2021 Advanced Micro Devices, Inc. All rights reserved. 7 // 8 // Authors: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com> 9 10 /* 11 * PCI interface for Renoir ACP device 12 */ 13 14 #include <linux/module.h> 15 #include <linux/pci.h> 16 #include <linux/platform_device.h> 17 #include <sound/sof.h> 18 #include <sound/soc-acpi.h> 19 20 #include "../ops.h" 21 #include "../sof-pci-dev.h" 22 #include "../../amd/mach-config.h" 23 #include "acp.h" 24 25 #define ACP3x_REG_START 0x1240000 26 #define ACP3x_REG_END 0x125C000 27 28 static struct platform_device *dmic_dev; 29 static struct platform_device *pdev; 30 31 static const struct resource renoir_res[] = { 32 { 33 .start = 0, 34 .end = ACP3x_REG_END - ACP3x_REG_START, 35 .name = "acp_mem", 36 .flags = IORESOURCE_MEM, 37 }, 38 { 39 .start = 0, 40 .end = 0, 41 .name = "acp_dai_irq", 42 .flags = IORESOURCE_IRQ, 43 }, 44 }; 45 46 static const struct sof_amd_acp_desc renoir_chip_info = { 47 .host_bridge_id = HOST_BRIDGE_CZN, 48 }; 49 50 static const struct sof_dev_desc renoir_desc = { 51 .machines = snd_soc_acpi_amd_sof_machines, 52 .use_acpi_target_states = true, 53 .resindex_lpe_base = 0, 54 .resindex_pcicfg_base = -1, 55 .resindex_imr_base = -1, 56 .irqindex_host_ipc = -1, 57 .chip_info = &renoir_chip_info, 58 .ipc_supported_mask = BIT(SOF_IPC), 59 .ipc_default = SOF_IPC, 60 .default_fw_path = { 61 [SOF_IPC] = "amd/sof", 62 }, 63 .default_tplg_path = { 64 [SOF_IPC] = "amd/sof-tplg", 65 }, 66 .default_fw_filename = { 67 [SOF_IPC] = "sof-rn.ri", 68 }, 69 .nocodec_tplg_filename = "sof-acp.tplg", 70 .ops = &sof_renoir_ops, 71 }; 72 73 static int acp_pci_rn_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) 74 { 75 struct platform_device_info pdevinfo; 76 struct device *dev = &pci->dev; 77 const struct resource *res_i2s; 78 struct resource *res; 79 unsigned int flag, i, addr; 80 int ret; 81 82 flag = snd_amd_acp_find_config(pci); 83 if (flag != FLAG_AMD_SOF && flag != FLAG_AMD_SOF_ONLY_DMIC) 84 return -ENODEV; 85 86 ret = sof_pci_probe(pci, pci_id); 87 if (ret != 0) 88 return ret; 89 90 dmic_dev = platform_device_register_data(dev, "dmic-codec", PLATFORM_DEVID_NONE, NULL, 0); 91 if (IS_ERR(dmic_dev)) { 92 dev_err(dev, "failed to create DMIC device\n"); 93 sof_pci_remove(pci); 94 return PTR_ERR(dmic_dev); 95 } 96 97 /* Register platform device only if flag set to FLAG_AMD_SOF_ONLY_DMIC */ 98 if (flag != FLAG_AMD_SOF_ONLY_DMIC) 99 return 0; 100 101 addr = pci_resource_start(pci, 0); 102 res = devm_kzalloc(&pci->dev, sizeof(struct resource) * ARRAY_SIZE(renoir_res), GFP_KERNEL); 103 if (!res) { 104 sof_pci_remove(pci); 105 platform_device_unregister(dmic_dev); 106 return -ENOMEM; 107 } 108 109 res_i2s = renoir_res; 110 for (i = 0; i < ARRAY_SIZE(renoir_res); i++, res_i2s++) { 111 res[i].name = res_i2s->name; 112 res[i].flags = res_i2s->flags; 113 res[i].start = addr + res_i2s->start; 114 res[i].end = addr + res_i2s->end; 115 if (res_i2s->flags == IORESOURCE_IRQ) { 116 res[i].start = pci->irq; 117 res[i].end = res[i].start; 118 } 119 } 120 121 memset(&pdevinfo, 0, sizeof(pdevinfo)); 122 123 /* 124 * We have common PCI driver probe for ACP device but we have to support I2S without SOF 125 * for some distributions. Register platform device that will be used to support non dsp 126 * ACP's audio ends points on some machines. 127 */ 128 129 pdevinfo.name = "acp_asoc_renoir"; 130 pdevinfo.id = 0; 131 pdevinfo.parent = &pci->dev; 132 pdevinfo.num_res = ARRAY_SIZE(renoir_res); 133 pdevinfo.res = &res[0]; 134 135 pdev = platform_device_register_full(&pdevinfo); 136 if (IS_ERR(pdev)) { 137 dev_err(&pci->dev, "cannot register %s device\n", pdevinfo.name); 138 sof_pci_remove(pci); 139 platform_device_unregister(dmic_dev); 140 ret = PTR_ERR(pdev); 141 } 142 143 return ret; 144 }; 145 146 static void acp_pci_rn_remove(struct pci_dev *pci) 147 { 148 if (dmic_dev) 149 platform_device_unregister(dmic_dev); 150 if (pdev) 151 platform_device_unregister(pdev); 152 153 return sof_pci_remove(pci); 154 } 155 156 /* PCI IDs */ 157 static const struct pci_device_id rn_pci_ids[] = { 158 { PCI_DEVICE(PCI_VENDOR_ID_AMD, ACP_PCI_DEV_ID), 159 .driver_data = (unsigned long)&renoir_desc}, 160 { 0, } 161 }; 162 MODULE_DEVICE_TABLE(pci, rn_pci_ids); 163 164 /* pci_driver definition */ 165 static struct pci_driver snd_sof_pci_amd_rn_driver = { 166 .name = KBUILD_MODNAME, 167 .id_table = rn_pci_ids, 168 .probe = acp_pci_rn_probe, 169 .remove = acp_pci_rn_remove, 170 .driver = { 171 .pm = &sof_pci_pm, 172 }, 173 }; 174 module_pci_driver(snd_sof_pci_amd_rn_driver); 175 176 MODULE_LICENSE("Dual BSD/GPL"); 177 MODULE_IMPORT_NS(SND_SOC_SOF_AMD_COMMON); 178 MODULE_IMPORT_NS(SND_SOC_SOF_PCI_DEV); 179