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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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e26fd1199e
Currently, there have no GMA500(Poulsbo) native video driver to support intel opregion. So, use this stub driver to enable the acpi backlight control sysfs entry files by requrest acpi_video_register. [airlied: fix warnings] Signed-off-by: Lee, Chun-Yi <jlee@novell.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
65 lines
1.3 KiB
C
65 lines
1.3 KiB
C
/*
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* Intel Poulsbo Stub driver
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*
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* Copyright (C) 2010 Novell <jlee@novell.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*
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*/
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#include <linux/module.h>
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#include <linux/pci.h>
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#include <linux/acpi.h>
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#include <acpi/video.h>
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#define DRIVER_NAME "poulsbo"
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enum {
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CHIP_PSB_8108 = 0,
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CHIP_PSB_8109 = 1,
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};
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static DEFINE_PCI_DEVICE_TABLE(pciidlist) = {
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{0x8086, 0x8108, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PSB_8108}, \
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{0x8086, 0x8109, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PSB_8109}, \
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{0, 0, 0}
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};
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static int poulsbo_probe(struct pci_dev *pdev, const struct pci_device_id *id)
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{
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return acpi_video_register();
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}
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static void poulsbo_remove(struct pci_dev *pdev)
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{
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acpi_video_unregister();
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}
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static struct pci_driver poulsbo_driver = {
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.name = DRIVER_NAME,
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.id_table = pciidlist,
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.probe = poulsbo_probe,
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.remove = poulsbo_remove,
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};
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static int __init poulsbo_init(void)
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{
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return pci_register_driver(&poulsbo_driver);
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}
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static void __exit poulsbo_exit(void)
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{
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pci_unregister_driver(&poulsbo_driver);
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}
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module_init(poulsbo_init);
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module_exit(poulsbo_exit);
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MODULE_AUTHOR("Lee, Chun-Yi <jlee@novell.com>");
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MODULE_DESCRIPTION("Poulsbo Stub Driver");
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MODULE_LICENSE("GPL");
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MODULE_DEVICE_TABLE(pci, pciidlist);
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