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path: root/drivers/acpi/video_detect.c
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* ACPI: video: convert to acpi_get_pci_devAlexander Chiang2009-06-17
| | | | | | | | | | Now that acpi_get_pci_dev is available, let's use it instead of acpi_get_physical_pci_device() Cc: Thomas Renninger <trenn@suse.de> Signed-off-by: Alex Chiang <achiang@hp.com> Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI video: add a warning message if _BQC is not foundZhang Rui2009-03-27
| | | | | | | | ACPI backlight control w/o _BQC support is kinda firmware bug. Add a warning if _BQC is not implemented. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: ec.c, pci_link.c, video_detec.c: staticRoel Kluin2008-12-30
| | | | | | | Sparse asked whether these could be static. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
* Merge branch 'video' into releaseLen Brown2008-11-11
| | | | | | | Conflicts: Documentation/kernel-parameters.txt Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI video: if no ACPI backlight support, use vendor driversThomas Renninger2008-11-07
If an ACPI graphics device supports backlight brightness functions (cmp. with latest ACPI spec Appendix B), let the ACPI video driver control backlight and switch backlight control off in vendor specific ACPI drivers (asus_acpi, thinkpad_acpi, eeepc, fujitsu_laptop, msi_laptop, sony_laptop, acer-wmi). Currently it is possible to load above drivers and let both poke on the brightness HW registers, the video and vendor specific ACPI drivers -> bad. This patch provides the basic support to check for BIOS capabilities before driver loading time. Driver specific modifications are in separate follow up patches. "acpi_backlight=vendor" Prever vendor driver over ACPI driver for backlight. "acpi_backlight=video" (default) Prever ACPI driver over vendor driver for backlight. Signed-off-by: Thomas Renninger <trenn@suse.de> Acked-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>