Mario Kleiner
564d8a2cf3
drm/radeon: Fix eDP for single-display iMac10,1 (v2) ...
The late 2009, 27 inch Apple iMac10,1 has an
internal eDP display and an external Mini-
Displayport output, driven by a DCE-3.2, RV730
Radeon Mobility HD-4670.
The machine worked fine in a dual-display setup
with eDP panel + externally connected HDMI
or DVI-D digital display sink, connected via
MiniDP to DVI or HDMI adapter.
However, booting the machine single-display with
only eDP panel results in a completely black
display - even backlight powering off, as soon as
the radeon modesetting driver loads.
This patch fixes the single dispay eDP case by
assigning encoders based on dig->linkb, similar
to DCE-4+. While this should not be generally
necessary (Alex: "...atom on normal boards
should be able to handle any mapping."), Apple
seems to use some special routing here.
One remaining problem not solved by this patch
is that an external Minidisplayport->DP sink
does still not work on iMac10,1, whereas external
DVI and HDMI sinks continue to work.
The problem affects at least all tested kernels
since Linux 3.13 - didn't test earlier kernels, so
backporting to stable probably makes sense.
v2: With the original patch from 2016, Alex was worried it
will break other DCE3.2 systems. Use dmi_match() to
apply this special encoder assignment only for the
Apple iMac 10,1 from late 2009.
Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Michel Dänzer <michel.daenzer@amd.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-07-07 11:11:28 -04:00
ACPI / scan: Fix enumeration for special SPI and I2C devices
2017-06-21 23:14:55 +02:00
libata: fix error checking in in ata_parse_force_one()
2017-05-31 14:26:26 -04:00
Merge branches 'intel_pstate' and 'pm-sleep'
2017-06-09 01:25:16 +02:00
Merge branch 'stable/for-jens-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen into for-linus
2017-06-20 07:09:27 -06:00
bus: SIMPLE_PM_BUS does not depend on ARCH_RENESAS
2017-06-17 08:03:08 -04:00
Fix some locking and gcc optimization issues from the most recent
2017-06-23 17:33:46 -07:00
Allwinner clock fixes for 4.12
2017-06-14 16:48:03 -07:00
clocksource: Explicitly include linux/clocksource.h when needed
2017-06-13 17:57:16 +02:00
Merge branches 'pm-cpufreq', 'pm-cpuidle' and 'pm-devfreq'
2017-06-15 01:51:33 +02:00
Merge branches 'pm-cpufreq', 'pm-cpuidle' and 'pm-devfreq'
2017-06-15 01:51:33 +02:00
device-dax: fix 'dax' device filesystem inode destruction crash
2017-06-09 08:50:49 -07:00
PM / devfreq: exynos-ppmu: Staticize event list
2017-06-12 10:12:07 +09:00
dmaengine: pl330: fix warning in pl330_remove
2017-06-02 11:49:44 +05:30
dma-buf/sync-file: Defer creation of sync_file->name
2017-05-24 13:08:29 -03:00
Merge branch 'dmi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
2017-06-16 17:13:06 +09:00
gpio: mvebu: change compatible string for PWM support
2017-06-20 13:42:20 +02:00
drm/radeon: Fix eDP for single-display iMac10,1 (v2)
2017-07-07 11:11:28 -04:00
Merge branch 'for-4.12/upstream-fixes' into for-linus
2017-06-20 10:52:46 +02:00
hsi: Fix build regression due to netdev destructor fix.
2017-06-08 10:16:05 -04:00
hwmon: (aspeed-pwm-tacho) make fan/pwm names start with index 1
2017-06-03 03:55:43 -07:00
i2c: imx: Use correct function to write to register
2017-06-22 10:52:02 +02:00
iio: buffer-dmaengine: Add missing header buffer_impl.h
2017-06-13 20:56:05 +01:00
Fixes #2 for 4.12-rc
2017-06-16 17:38:23 +09:00
Input: synaptics-rmi4 - only read the F54 query registers which are used
2017-06-23 00:08:48 -07:00
iommu/of: Ignore all errors except EPROBE_DEFER
2017-05-30 11:31:32 +02:00
irqchip/mips-gic: Mark count and compare accessors notrace
2017-06-20 21:41:58 +02:00
mISDN: Fix a sleep-in-atomic bug
2017-06-01 14:49:47 -04:00
LED fixes for 4.12-rc6
2017-06-18 08:51:35 +09:00
dm io: fix duplicate bio completion due to missing ref count
2017-06-21 12:04:50 -04:00
Linux 4.12-rc7
2017-06-27 08:28:30 +10:00
Merge tag 'at91-4.12-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux into fixes
2017-06-01 17:07:31 -07:00
mfd: arizona: Fix typo using hard-coded register
2017-06-06 10:17:42 +01:00
Char/Misc driver fixes for 4.12-rc5
2017-06-11 11:29:15 -07:00
mmc: meson-gx: work around broken SDIO with certain WiFi chips
2017-06-12 08:58:16 +02:00
wireless-drivers fixes for 4.12
2017-06-20 15:41:56 -04:00
ntb: no sleep in ntb_async_tx_submit
2017-06-19 14:24:41 -04:00
nvme: relax APST default max latency to 100ms
2017-06-07 11:08:55 +02:00
iommu/of: Ignore all errors except EPROBE_DEFER
2017-05-30 11:31:32 +02:00
PCI: endpoint: Select CRC32 to fix test build error
2017-06-12 15:46:13 -05:00
drivers/perf: arm_pmu_acpi: avoid perf IRQ init when guest PMU is off
2017-05-30 12:40:03 +01:00
phy: qualcomm: phy-qcom-qmp: fix application of sizeof to pointer
2017-06-01 15:03:41 +05:30
pinctrl: stm32: Fix bad function call
2017-06-09 10:51:54 +02:00
platform-drivers-x86 for v4.12-2
2017-06-16 17:30:44 +09:00
reset: hi6220: Set module license so that it can be loaded
2017-05-24 10:53:41 +02:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-06-15 18:09:47 +09:00
SCSI fixes on 20170622
2017-06-23 12:25:37 -07:00
Staging/IIO fixes for 4.12-rc6
2017-06-18 08:36:30 +09:00
iscsi-target: Reject immediate data underflow larger than SCSI transfer length
2017-06-08 22:25:29 -07:00
thermal: broadcom: ns-thermal: default on iProc SoCs
2017-05-23 20:09:34 -07:00
Revert "tty: fix port buffer locking"
2017-06-04 10:23:25 +02:00
USB fixes for 4.12-rc6
2017-06-18 08:39:54 +09:00
Linux 4.12-rc7
2017-06-27 08:28:30 +10:00
virtio_balloon: disable VIOMMU support
2017-06-18 23:13:35 +03:00
xen: fix for 4.12 rc5
2017-06-09 09:59:51 -07:00
564d8a2cf3