>From cd5bc5c3d4f7c614a706152d248466bc72b03f99 Mon Sep 17 00:00:00 2001 From: Lee, Chun-Yi Date: Wed, 25 Aug 2010 16:28:04 +0800 Subject: [PATCH] Add Intel Poulsbo Stub Driver Currently, there have no 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. Signed-off-by: Lee, Chun-Yi --- drivers/gpu/Makefile | 2 +- drivers/gpu/stub/Kconfig | 13 +++++++++ drivers/gpu/stub/Makefile | 1 + drivers/gpu/stub/poulsbo.c | 64 ++++++++++++++++++++++++++++++++++++++++++++ drivers/video/Kconfig | 2 + 5 files changed, 81 insertions(+), 1 deletions(-) create mode 100644 drivers/gpu/stub/Kconfig create mode 100644 drivers/gpu/stub/Makefile create mode 100644 drivers/gpu/stub/poulsbo.c diff --git a/drivers/gpu/Makefile b/drivers/gpu/Makefile index 30879df..cc92778 100644 --- a/drivers/gpu/Makefile +++ b/drivers/gpu/Makefile @@ -1 +1 @@ -obj-y += drm/ vga/ +obj-y += drm/ vga/ stub/ diff --git a/drivers/gpu/stub/Kconfig b/drivers/gpu/stub/Kconfig new file mode 100644 index 0000000..c564140 --- /dev/null +++ b/drivers/gpu/stub/Kconfig @@ -0,0 +1,13 @@ +config STUB_POULSBO + tristate "Intel Poulsbo Stub Driver" + default m + # Poulsbo stub depends on ACPI_VIDEO when ACPI is enabled + # but for select to work, need to select ACPI_VIDEO's dependencies, ick + select ACPI_VIDEO if ACPI + help + Choose this option if you have a system that has Intel Poulsbo + integrated graphics. If M is selected, the module will be called + Poulsbo. This driver is a stub driver for Poulsbo that will call + poulsbo.ko to enable the acpi backlight control sysfs entry file + because there have no poulsbo native driver can support intel + opregion. diff --git a/drivers/gpu/stub/Makefile b/drivers/gpu/stub/Makefile new file mode 100644 index 0000000..cd940cc --- /dev/null +++ b/drivers/gpu/stub/Makefile @@ -0,0 +1 @@ +obj-$(CONFIG_STUB_POULSBO) += poulsbo.o diff --git a/drivers/gpu/stub/poulsbo.c b/drivers/gpu/stub/poulsbo.c new file mode 100644 index 0000000..e18dc24 --- /dev/null +++ b/drivers/gpu/stub/poulsbo.c @@ -0,0 +1,64 @@ +/* + * Intel Poulsbo Stub driver + * + * Copyright (C) 2010 Novell + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + */ + +#include +#include +#include + +#define DRIVER_NAME "poulsbo" + +enum { + CHIP_PSB_8108 = 0, + CHIP_PSB_8109 = 1, +}; + +static struct pci_device_id pciidlist[] = { + {0x8086, 0x8108, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PSB_8108}, \ + {0x8086, 0x8109, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PSB_8109}, \ + {0, 0, 0} +}; + +static int poulsbo_probe(struct pci_dev *pdev, const struct pci_device_id *id) +{ + return acpi_video_register(); +} + +static void poulsbo_remove(struct pci_dev *pdev) +{ + acpi_video_unregister(); +} + +static struct pci_driver poulsbo_driver = { + .name = DRIVER_NAME, + .id_table = pciidlist, + .probe = poulsbo_probe, + .remove = poulsbo_remove, +}; + +static int __init poulsbo_init(void) +{ + return pci_register_driver(&poulsbo_driver); +} + +static void __exit poulsbo_exit(void) +{ + pci_unregister_driver(&poulsbo_driver); +} + +module_init(poulsbo_init); +module_exit(poulsbo_exit); + +MODULE_AUTHOR("Lee, Chun-Yi "); +MODULE_DESCRIPTION("Poulsbo Stub Driver"); +MODULE_LICENSE("GPL"); + +MODULE_ALIAS("pci:v00008086d00008108sv*sd*bc*sc*i*"); +MODULE_ALIAS("pci:v00008086d00008109sv*sd*bc*sc*i*"); diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig index 8b31fdf..8807ae5 100644 --- a/drivers/video/Kconfig +++ b/drivers/video/Kconfig @@ -17,6 +17,8 @@ source "drivers/gpu/vga/Kconfig" source "drivers/gpu/drm/Kconfig" +source "drivers/gpu/stub/Kconfig" + config VGASTATE tristate default n -- 1.6.0.2