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Diffstat (limited to 'sound/soc/sof/amd/pci-rn.c')
| -rw-r--r-- | sound/soc/sof/amd/pci-rn.c | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/sound/soc/sof/amd/pci-rn.c b/sound/soc/sof/amd/pci-rn.c new file mode 100644 index 000000000000..392ffbdf6417 --- /dev/null +++ b/sound/soc/sof/amd/pci-rn.c @@ -0,0 +1,165 @@ +// 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 <AjitKumar.Pandey@amd.com> + +/* + * 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" + +#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 = { + .host_bridge_id = HOST_BRIDGE_CZN, +}; + +static const struct sof_dev_desc renoir_desc = { + .machines = snd_soc_acpi_amd_sof_machines, + .resindex_lpe_base = 0, + .resindex_pcicfg_base = -1, + .resindex_imr_base = -1, + .irqindex_host_ipc = -1, + .chip_info = &renoir_chip_info, + .default_fw_path = "amd/sof", + .default_tplg_path = "amd/sof-tplg", + .default_fw_filename = "sof-rn.ri", + .nocodec_tplg_filename = "sof-acp.tplg", + .ops = &sof_renoir_ops, +}; + +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; + + 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); + 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, +}; +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); |