https://github.com/torvalds/linux
Revision 3b5c78a35cf7511c15e09a9b0ffab290a42d9bcf authored by Adam Jackson on 13 December 2011, 23:41:00 UTC, committed by Keith Packard on 16 December 2011, 16:49:59 UTC
Some active adaptors (VGA usually) only have two lanes at 2.7GHz.
That's a maximum pixel clock of 144MHz at 8bpc, but 192MHz at 6bpc.

Fixes Asus UX31 panel being black at startup due to no valid modes since
dc22ee6fc18ce0f15424e753e8473c306ece95c1.

v2: Rebased to current code, resulting in the fix applying to EDP panels as
    well.  Also changed from spatio-temporal to just spatial dithering on
    pre-ironlake, to be conssitent (and less visual flicker)

Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Tested-by: Eric Anholt <eric@anholt.net>
Tested-by: Dirk Hohndel <hohndel@infradead.org>
Signed-off-by: Keith Packard <keithp@keithp.com>
1 parent f45b555
History
Tip revision: 3b5c78a35cf7511c15e09a9b0ffab290a42d9bcf authored by Adam Jackson on 13 December 2011, 23:41:00 UTC
drm/i915/dp: Dither down to 6bpc if it makes the mode fit
Tip revision: 3b5c78a
File Mode Size
ABI
DocBook
PCI
RCU
accounting
acpi
aoe
arm
auxdisplay
blackfin
block
blockdev
cdrom
cgroups
connector
console
cpu-freq
cpuidle
cris
crypto
development-process
device-mapper
devicetree
driver-model
dvb
early-userspace
fault-injection
fb
filesystems
firmware_class
frv
hid
hwmon
i2c
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ide
infiniband
input
ioctl
isdn
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kbuild
kdump
ko_KR
laptops
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m68k
make
mips
misc-devices
mmc
mn10300
mtd
namespaces
netlabel
networking
nfc
parisc
pcmcia
power
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pps
prctl
pti
ptp
rapidio
s390
scheduler
scsi
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serial
sh
sound
sparc
spi
sysctl
target
telephony
thermal
timers
trace
usb
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vm
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watchdog
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zh_CN
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BUG-HUNTING -rw-r--r-- 8.1 KB
Changes -rw-r--r-- 11.7 KB
CodingStyle -rw-r--r-- 29.0 KB
DMA-API-HOWTO.txt -rw-r--r-- 28.0 KB
DMA-API.txt -rw-r--r-- 26.7 KB
DMA-ISA-LPC.txt -rw-r--r-- 5.2 KB
DMA-attributes.txt -rw-r--r-- 1.3 KB
HOWTO -rw-r--r-- 27.2 KB
IPMI.txt -rw-r--r-- 28.5 KB
IRQ-affinity.txt -rw-r--r-- 2.5 KB
IRQ.txt -rw-r--r-- 962 bytes
Intel-IOMMU.txt -rw-r--r-- 3.8 KB
Makefile -rw-r--r-- 160 bytes
ManagementStyle -rw-r--r-- 12.9 KB
SAK.txt -rw-r--r-- 2.8 KB
SM501.txt -rw-r--r-- 2.8 KB
SecurityBugs -rw-r--r-- 1.8 KB
SubmitChecklist -rw-r--r-- 4.4 KB
SubmittingDrivers -rw-r--r-- 6.3 KB
SubmittingPatches -rw-r--r-- 28.5 KB
VGA-softcursor.txt -rw-r--r-- 2.0 KB
applying-patches.txt -rw-r--r-- 19.5 KB
atomic_ops.txt -rw-r--r-- 19.0 KB
bad_memory.txt -rw-r--r-- 1.1 KB
basic_profiling.txt -rw-r--r-- 1.7 KB
binfmt_misc.txt -rw-r--r-- 5.9 KB
braille-console.txt -rw-r--r-- 1.4 KB
bt8xxgpio.txt -rw-r--r-- 4.3 KB
btmrvl.txt -rw-r--r-- 2.9 KB
bus-virt-phys-mapping.txt -rw-r--r-- 7.9 KB
cachetlb.txt -rw-r--r-- 17.1 KB
circular-buffers.txt -rw-r--r-- 7.6 KB
coccinelle.txt -rw-r--r-- 7.9 KB
cpu-hotplug.txt -rw-r--r-- 14.6 KB
cpu-load.txt -rw-r--r-- 3.0 KB
cputopology.txt -rw-r--r-- 3.8 KB
dcdbas.txt -rw-r--r-- 3.6 KB
debugging-modules.txt -rw-r--r-- 954 bytes
debugging-via-ohci1394.txt -rw-r--r-- 7.4 KB
dell_rbu.txt -rw-r--r-- 4.9 KB
devices.txt -rw-r--r-- 115.8 KB
dmaengine.txt -rw-r--r-- 7.1 KB
dontdiff -rw-r--r-- 2.5 KB
dynamic-debug-howto.txt -rw-r--r-- 9.5 KB
edac.txt -rw-r--r-- 26.9 KB
eisa.txt -rw-r--r-- 7.1 KB
email-clients.txt -rw-r--r-- 8.6 KB
feature-removal-schedule.txt -rw-r--r-- 19.9 KB
flexible-arrays.txt -rw-r--r-- 5.5 KB
futex-requeue-pi.txt -rw-r--r-- 5.0 KB
gcov.txt -rw-r--r-- 7.5 KB
gpio.txt -rw-r--r-- 30.4 KB
highuid.txt -rw-r--r-- 2.4 KB
hw_random.txt -rw-r--r-- 3.5 KB
hwspinlock.txt -rw-r--r-- 12.1 KB
init.txt -rw-r--r-- 2.5 KB
initrd.txt -rw-r--r-- 14.1 KB
intel_txt.txt -rw-r--r-- 10.2 KB
io-mapping.txt -rw-r--r-- 3.2 KB
io_ordering.txt -rw-r--r-- 1.9 KB
iostats.txt -rw-r--r-- 7.9 KB
irqflags-tracing.txt -rw-r--r-- 2.6 KB
isapnp.txt -rw-r--r-- 433 bytes
java.txt -rw-r--r-- 10.7 KB
kernel-doc-nano-HOWTO.txt -rw-r--r-- 11.4 KB
kernel-docs.txt -rw-r--r-- 33.1 KB
kernel-parameters.txt -rw-r--r-- 96.5 KB
kmemcheck.txt -rw-r--r-- 29.8 KB
kmemleak.txt -rw-r--r-- 7.7 KB
kobject.txt -rw-r--r-- 17.6 KB
kprobes.txt -rw-r--r-- 29.5 KB
kref.txt -rw-r--r-- 6.1 KB
ldm.txt -rw-r--r-- 3.8 KB
local_ops.txt -rw-r--r-- 6.1 KB
lockdep-design.txt -rw-r--r-- 8.8 KB
lockstat.txt -rw-r--r-- 10.7 KB
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magic-number.txt -rw-r--r-- 9.7 KB
mca.txt -rw-r--r-- 11.3 KB
md.txt -rw-r--r-- 24.9 KB
media-framework.txt -rw-r--r-- 13.9 KB
memory-barriers.txt -rw-r--r-- 82.3 KB
memory-hotplug.txt -rw-r--r-- 15.0 KB
memory.txt -rw-r--r-- 1.2 KB
mono.txt -rw-r--r-- 2.5 KB
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nmi_watchdog.txt -rw-r--r-- 4.2 KB
nommu-mmap.txt -rw-r--r-- 12.7 KB
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padata.txt -rw-r--r-- 7.3 KB
parport-lowlevel.txt -rw-r--r-- 32.2 KB
parport.txt -rw-r--r-- 8.8 KB
pi-futex.txt -rw-r--r-- 5.7 KB
pinctrl.txt -rw-r--r-- 30.6 KB
pnp.txt -rw-r--r-- 6.8 KB
preempt-locking.txt -rw-r--r-- 5.2 KB
printk-formats.txt -rw-r--r-- 4.9 KB
prio_tree.txt -rw-r--r-- 5.2 KB
ramoops.txt -rw-r--r-- 2.3 KB
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robust-futex-ABI.txt -rw-r--r-- 8.7 KB
robust-futexes.txt -rw-r--r-- 9.4 KB
rt-mutex-design.txt -rw-r--r-- 32.8 KB
rt-mutex.txt -rw-r--r-- 3.5 KB
rtc.txt -rw-r--r-- 15.5 KB
serial-console.txt -rw-r--r-- 4.0 KB
sgi-ioc4.txt -rw-r--r-- 2.0 KB
sgi-visws.txt -rw-r--r-- 678 bytes
sparse.txt -rw-r--r-- 3.0 KB
spinlocks.txt -rw-r--r-- 6.5 KB
stable_api_nonsense.txt -rw-r--r-- 9.2 KB
stable_kernel_rules.txt -rw-r--r-- 3.6 KB
svga.txt -rw-r--r-- 14.1 KB
sysfs-rules.txt -rw-r--r-- 8.1 KB
sysrq.txt -rw-r--r-- 11.6 KB
unaligned-memory-access.txt -rw-r--r-- 10.0 KB
unicode.txt -rw-r--r-- 6.5 KB
unshare.txt -rw-r--r-- 13.1 KB
vgaarbiter.txt -rw-r--r-- 8.1 KB
video-output.txt -rw-r--r-- 1.1 KB
volatile-considered-harmful.txt -rw-r--r-- 5.6 KB
workqueue.txt -rw-r--r-- 15.6 KB
xz.txt -rw-r--r-- 5.7 KB
zorro.txt -rw-r--r-- 2.8 KB

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