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/*
* AMD ALSA SoC PCM Driver
*
* Copyright 2016 Advanced Micro Devices, Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*/
#include <linux/pci.h>
#include <linux/module.h>
#include <linux/io.h>
#include "acp3x.h"
struct acp3x_dev_data {
void __iomem *acp3x_base;
};
static int snd_acp3x_probe(struct pci_dev *pci,
const struct pci_device_id *pci_id)
{
int ret;
u32 addr;
struct acp3x_dev_data *adata;
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 acp3x_dev_data),
GFP_KERNEL);
if (!adata) {
ret = -ENOMEM;
goto release_regions;
}
addr = pci_resource_start(pci, 0);
adata->acp3x_base = ioremap(addr, pci_resource_len(pci, 0));
if (!adata->acp3x_base) {
ret = -ENOMEM;
goto release_regions;
}
pci_set_master(pci);
pci_set_drvdata(pci, adata);
return 0;
release_regions:
pci_release_regions(pci);
disable_pci:
pci_disable_device(pci);
return ret;
}
static void snd_acp3x_remove(struct pci_dev *pci)
{
struct acp3x_dev_data *adata = pci_get_drvdata(pci);
iounmap(adata->acp3x_base);
pci_release_regions(pci);
pci_disable_device(pci);
}
static const struct pci_device_id snd_acp3x_ids[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, 0x15e2),
.class = PCI_CLASS_MULTIMEDIA_OTHER << 8,
.class_mask = 0xffffff },
{ 0, },
};
MODULE_DEVICE_TABLE(pci, snd_acp3x_ids);
static struct pci_driver acp3x_driver = {
.name = KBUILD_MODNAME,
.id_table = snd_acp3x_ids,
.probe = snd_acp3x_probe,
.remove = snd_acp3x_remove,
};
module_pci_driver(acp3x_driver);
MODULE_AUTHOR("Maruthi.Bayyavarapu@amd.com");
MODULE_DESCRIPTION("AMD ACP3x PCI driver");
MODULE_LICENSE("GPL v2");
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