linux_dsm_epyc7002/include
Lyude Paul 17f5d57915 drm/i915: Force DPCD backlight mode on X1 Extreme 2nd Gen 4K AMOLED panel
The X1 Extreme is one of the systems that lies about which backlight
interface that it uses in its VBIOS as PWM backlight controls don't work
at all on this machine. It's possible that this panel could be one of
the infamous ones that can switch between PWM mode and DPCD backlight
control mode, but we haven't gotten any more details on this from Lenovo
just yet. For the time being though, making sure the backlight 'just
works' is a bit more important.

So, add a quirk to force DPCD backlight controls on for these systems
based on EDID (since this panel doesn't appear to fill in the device ID).
Hopefully in the future we'll figure out a better way of probing this.

Changes since v2:
* The bugzilla URL is deprecated, bug reporting happens on gitlab now.
  Update the messages we print to reflect this
* Also, take the opportunity to move FDO_BUG_URL out of i915_utils.c and
  into i915_utils.h so that other places which print things that aren't
  traditional errors but are worth filing bugs about, can actually use
  it.

Signed-off-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200303215320.93491-1-lyude@redhat.com
2020-03-03 20:34:32 -05:00
..
acpi ACPICA: Introduce acpi_any_gpe_status_set() 2020-02-11 23:26:15 +01:00
asm-generic Microblaze patches for 5.6-rc1 2020-02-04 11:58:07 +00:00
clocksource
crypto
drm drm/i915: Force DPCD backlight mode on X1 Extreme 2nd Gen 4K AMOLED panel 2020-03-03 20:34:32 -05:00
dt-bindings ARM: SoC: late updates 2020-02-08 14:17:27 -08:00
keys
kunit
kvm
linux Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2020-02-15 12:51:22 -08:00
math-emu
media
misc
net Just a few fixes: 2020-02-14 07:16:08 -08:00
pcmcia
ras
rdma RDMA/core: Make the entire API tree static 2020-01-30 16:28:52 -04:00
scsi
soc ARM: SoC-related driver updates 2020-02-08 14:04:19 -08:00
sound ARM: Device-tree updates 2020-02-08 13:58:44 -08:00
target
trace ARM: SoC-related driver updates 2020-02-08 14:04:19 -08:00
uapi drm/i915: Allow userspace to specify ringsize on construction 2020-02-25 19:23:19 +00:00
vdso
video
xen xen: branch for v5.6-rc1 2020-02-05 17:44:14 +00:00