linux_dsm_epyc7002/drivers
Lyude Paul 9ac7d53d70 drm/i915: Auto detect DPCD backlight support by default
Turns out we actually already have some companies, such as Lenovo,
shipping machines with AMOLED screens that don't allow controlling the
backlight through the usual PWM interface and only allow controlling it
through the standard EDP DPCD interface. One example of one of these
laptops is the X1 Extreme 2nd Generation.

Since we've got systems that need this turned on by default now to have
backlight controls working out of the box, let's start auto-detecting it
for systems by default based on what the VBT tells us. We do this by
changing the default value for the enable_dpcd_backlight module param
from 0 to -1.

Tested-by: AceLan Kao <acelan.kao@canonical.com>
Tested-by: Perry Yuan <pyuan@redhat.com>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200116211623.53799-6-lyude@redhat.com
2020-01-17 13:41:12 +02:00
..
accessibility
acpi i915 features for v5.6: 2019-12-27 15:25:04 +10:00
amba
android binder: fix incorrect calculation for num_valid 2019-12-14 09:10:47 +01:00
ata
atm
auxdisplay drm-misc-next for v5.6: 2019-12-17 13:57:54 +01:00
base Merge branch 'remove-ksys-mount-dup' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux 2019-12-15 11:36:12 -08:00
bcma
block xen: branch for v5.5-rc2 2019-12-15 12:24:44 -08:00
bluetooth
bus
cdrom
char
clk
clocksource
connector
counter
cpufreq
cpuidle
crypto
dax
dca
devfreq
dio
dma
dma-buf drm-misc-next for v5.6: 2020-01-03 11:43:44 +10:00
edac
eisa
extcon
firewire
firmware
fpga
fsi
gnss
gpio
gpu drm/i915: Auto detect DPCD backlight support by default 2020-01-17 13:41:12 +02:00
greybus
hid drm-misc-next for v5.6: 2019-12-17 13:57:54 +01:00
hsi
hv
hwmon
hwspinlock
hwtracing
i2c
i3c
ide
idle
iio
infiniband Pull request for 5.5-rc2 2019-12-15 14:58:13 -08:00
input
interconnect
iommu
ipack
irqchip
isdn
leds
lightnvm
macintosh
mailbox
mcb
md for-linus-20191212 2019-12-13 14:27:19 -08:00
media drm-misc-next for v5.6: 2019-12-17 13:57:54 +01:00
memory
memstick
message
mfd drm/i915/dsi: Move Crystal Cove PMIC panel GPIO lookup from mfd to the i915 driver 2020-01-03 11:47:00 +01:00
misc drm-misc-next for v5.6: 2019-12-17 13:57:54 +01:00
mmc
mtd
mux
net
nfc
ntb
nubus
nvdimm
nvme for-linus-20191212 2019-12-13 14:27:19 -08:00
nvmem
of
opp
oprofile
parisc
parport
pci
pcmcia
perf
phy
pinctrl pinctrl: Allow modules to use pinctrl_[un]register_mappings 2019-12-30 14:27:17 +01:00
platform
pnp
power
powercap
pps
ps3
ptp
pwm
rapidio
ras
regulator
remoteproc
reset
rpmsg
rtc
s390
sbus
scsi SCSI fixes on 20191214 2019-12-14 12:51:57 -08:00
sfi
sh
siox
slimbus
soc
soundwire
spi
spmi
ssb
staging drm-misc-next for v5.6: 2019-12-17 13:57:54 +01:00
target
tc
tee drm-misc-next for v5.6: 2019-12-17 13:57:54 +01:00
thermal
thunderbolt
tty
uio
usb USB driver fixes for 5.5-rc2 2019-12-14 12:40:39 -08:00
vfio
vhost
video Merge drm/drm-next into drm-misc-next 2020-01-06 10:35:33 +01:00
virt
virtio
visorbus
vlynq
vme
w1
watchdog
xen drm-misc-next for v5.6: 2019-12-17 13:57:54 +01:00
zorro
Kconfig
Makefile