49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2023 Loongson Technology Corporation Limited
|
|
*/
|
|
|
|
#include <linux/pci.h>
|
|
|
|
#include <video/nomodeset.h>
|
|
|
|
#include "loongson_module.h"
|
|
|
|
static int loongson_modeset = -1;
|
|
MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
|
|
module_param_named(modeset, loongson_modeset, int, 0400);
|
|
|
|
int loongson_vblank = 1;
|
|
MODULE_PARM_DESC(vblank, "Disable/Enable hw vblank support");
|
|
module_param_named(vblank, loongson_vblank, int, 0400);
|
|
|
|
static int __init loongson_module_init(void)
|
|
{
|
|
struct pci_dev *pdev = NULL;
|
|
|
|
while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, pdev))) {
|
|
/*
|
|
* Multiple video card workaround
|
|
*
|
|
* This integrated video card will always be selected as
|
|
* default boot device by vgaarb subsystem.
|
|
*/
|
|
if (pdev->vendor != PCI_VENDOR_ID_LOONGSON || pdev->device == 0x1a05) {
|
|
pr_info("Discrete graphic card detected, abort\n");
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (!loongson_modeset || video_firmware_drivers_only())
|
|
return -ENODEV;
|
|
|
|
return pci_register_driver(&lsdc_pci_driver);
|
|
}
|
|
module_init(loongson_module_init);
|
|
|
|
static void __exit loongson_module_exit(void)
|
|
{
|
|
pci_unregister_driver(&lsdc_pci_driver);
|
|
}
|
|
module_exit(loongson_module_exit);
|