linux/drivers
Bruno Prémont 20cde69402 x86, ia64: Move EFI_FB vga_default_device() initialization to pci_vga_fixup()
Commit b4aa016305 ("efifb: Implement vga_default_device() (v2)") added
efifb vga_default_device() so EFI systems that do not load shadow VBIOS or
setup VGA get proper value for boot_vga PCI sysfs attribute on the
corresponding PCI device.

Xorg doesn't detect devices when boot_vga=0, e.g., on some EFI systems such
as MacBookAir2,1.  Xorg detects the GPU and finds the DRI device but then
bails out with "no devices detected".

Note: When vga_default_device() is set boot_vga PCI sysfs attribute
reflects its state.  When unset this attribute is 1 whenever
IORESOURCE_ROM_SHADOW flag is set.

With introduction of sysfb/simplefb/simpledrm efifb is getting obsolete
while having native drivers for the GPU also makes selecting sysfb/efifb
optional.

Remove the efifb implementation of vga_default_device() and initialize
vgaarb's vga_default_device() with the PCI GPU that matches boot
screen_info in pci_fixup_video().

[bhelgaas: remove unused "dev" in efifb_setup()]
Fixes: b4aa016305 ("efifb: Implement vga_default_device() (v2)")
Tested-by: Anibal Francisco Martinez Cortina <linuxkid.zeuz@gmail.com>
Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Matthew Garrett <matthew.garrett@nebula.com>
CC: stable@vger.kernel.org	# v3.5+
2014-07-10 16:48:48 -06:00
..
accessibility
acpi
amba
ata
atm
auxdisplay
base
bcma
block
bluetooth
bus
cdrom
char
clk
clocksource
connector
cpufreq
cpuidle
crypto
dca
devfreq
dio
dma
edac
eisa
extcon
firewire
firmware
fmc
gpio
gpu
hid
hsi
hv
hwmon
hwspinlock
i2c
ide
idle
iio
infiniband
input
iommu
ipack
irqchip
isdn
leds
lguest
macintosh
mailbox
mcb
md
media
memory
memstick
message
mfd
misc
mmc
mtd
net
nfc
ntb
nubus
of
oprofile
parisc
parport
pci
pcmcia
phy
pinctrl
platform
pnp
power
powercap
pps
ps3
ptp
pwm
rapidio
regulator
remoteproc
reset
rpmsg
rtc
s390
sbus
scsi
sfi
sh
sn
soc
spi
spmi
ssb
staging
target
tc
thermal
tty
uio
usb
uwb
vfio
vhost
video x86, ia64: Move EFI_FB vga_default_device() initialization to pci_vga_fixup() 2014-07-10 16:48:48 -06:00
virt
virtio
vlynq
vme
w1
watchdog
xen
zorro
Kconfig
Makefile