ACPI: Add support for exposing BGRT data

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ACPI 5.0 adds the BGRT, a table that contains a pointer to the firmware
boot splash and associated metadata. This simple driver exposes it via
/sys/firmware/acpi in order to allow bootsplash applications to draw their
splash around the firmware image and reduce the number of jarring graphical
transitions during boot.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Len Brown <len.brown@intel.com>

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Matthew Garrett 2012-01-31 13:19:20 -05:00 • committed by Len Brown

parent f2d4753fbd

commit d1ff4b1cdb

4 changed files with 205 additions and 0 deletions

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20

Documentation/ABI/testing/sysfs-firmware-acpi

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9

drivers/acpi/Kconfig

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1

drivers/acpi/Makefile

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175

drivers/acpi/bgrt.c

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