In a low-memory 2D VM, fbdev can take up a large percentage of
available memory, making them unavailable for other DRM clients.

Since we do not take fbdev into account when filtering modes,
we end up claiming to support more modes than we actually do.

As a result, users get a black screen when setting a mode too
large for current available memory.  In a low-memory VM
configuration, users can get a black screen for a mode as low
as 1024x768.

The current mode filtering mechanism keys off of
SVGA_REG_SUGGESTED_GBOBJECT_MEM_SIZE_KB, i.e. the maximum amount
of surface memory we have.  Since this value is a performance
suggestion, not a hard limit, and since there should not be much
of a performance impact for a 2D VM, rather than filtering out
more modes, we will just allow ourselves to exceed the SVGA's
performance suggestion.

Also changed assumed bpp to 32 from 16 to make sure we can
actually support all the modes listed.
Signed-off-by: Sinclair Yeh <syeh@vmware.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Cc: <stable@vger.kernel.org>

Discovered by static code analysis tool.  If for some reason communication
with the host fails more than preset number of retries, return an error
instead of return garbage.
Signed-off-by: Sinclair Yeh <syeh@vmware.com>
Reviewed-by: Charmaine Lee <charmainel@vmware.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>

Atomic updates may acquire more state than initially locked through
drm_modeset_lock_crtc, running with heavy stress can cause a
WARN_ON(crtc->acquire_ctx) in drm_modeset_lock_crtc:

[  601.491296] ------------[ cut here ]------------
[  601.491366] WARNING: CPU: 0 PID: 2411 at
drivers/gpu/drm/drm_modeset_lock.c:191 drm_modeset_lock_crtc+0xeb/0xf0 [drm]
[  601.491369] Modules linked in: drm i915 drm_kms_helper
[  601.491414] CPU: 0 PID: 2411 Comm: kms_cursor_lega Tainted: G     U 4.7.0-rc4-patser+ #4798
[  601.491417] Hardware name: Intel Corporation Skylake Client
[  601.491420]  0000000000000000 ffff88044d153c98 ffffffff812ead28 0000000000000000
[  601.491425]  0000000000000000 ffff88044d153cd8 ffffffff810868e6 000000bf58058030
[  601.491431]  ffff880088b415e8 ffff880458058030 ffff88008a271548 ffff88008a271568
[  601.491436] Call Trace:
[  601.491443]  [<ffffffff812ead28>] dump_stack+0x4d/0x65
[  601.491447]  [<ffffffff810868e6>] __warn+0xc6/0xe0
[  601.491452]  [<ffffffff81086968>] warn_slowpath_null+0x18/0x20
[  601.491472]  [<ffffffffc00d4ffb>] drm_modeset_lock_crtc+0xeb/0xf0 [drm]
[  601.491491]  [<ffffffffc00c5526>] drm_mode_cursor_common+0x66/0x180 [drm]
[  601.491509]  [<ffffffffc00c91cc>] drm_mode_cursor_ioctl+0x3c/0x40 [drm]
[  601.491524]  [<ffffffffc00bc94d>] drm_ioctl+0x14d/0x530 [drm]
[  601.491540]  [<ffffffffc00c9190>] ? drm_mode_setcrtc+0x520/0x520 [drm]
[  601.491545]  [<ffffffff81176aeb>] ? handle_mm_fault+0x106b/0x1430
[  601.491550]  [<ffffffff81108441>] ? stop_one_cpu+0x61/0x70
[  601.491556]  [<ffffffff811bb71d>] do_vfs_ioctl+0x8d/0x570
[  601.491560]  [<ffffffff81290d7e>] ? security_file_ioctl+0x3e/0x60
[  601.491565]  [<ffffffff811bbc74>] SyS_ioctl+0x74/0x80
[  601.491571]  [<ffffffff810e321c>] ? posix_get_monotonic_raw+0xc/0x10
[  601.491576]  [<ffffffff8175b11b>] entry_SYSCALL_64_fastpath+0x13/0x8f
[  601.491581] ---[ end trace 56f3d3d85f000d00 ]---

For good measure, test mode_config.acquire_ctx too, although this should
never happen.

Testcase: kms_cursor_legacy
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>

A bit bigger than I would normally like, but most of the large changes are
for polaris support and since polaris went upstream in 4.7, I'd like
to get the fixes in so it's in good shape when the hw becomes available.
The major changes only touch the polaris code so there is little chance
for regressions on other asics.  The rest are just the usual collection
of bug fixes.

* 'drm-fixes-4.7' of git://people.freedesktop.org/~agd5f/linux:
  drm/amd/powerplay: enable clock stretch feature for polaris
  drm/amdgpu/gfx8: update golden setting for polaris10
  drm/amd/powerplay: enable avfs feature for polaris
  drm/amdgpu/atombios: add avfs struct for Polaris10/11
  drm/amd/powerplay: add avfs related define for polaris
  drm/amd/powrplay: enable stutter_mode for polaris.
  drm/amd/powerplay: disable UVD SMU handshake for MCLK.
  drm/amd/powerplay: initialize variables which were missed.
  drm/amd/powerplay: enable PowerContainment feature for polaris10/11.
  drm/amd/powerplay: need to notify system bios pcie device ready
  drm/amd/powerplay: fix bug that function parameter was incorect.
  drm/amd/powerplay: fix logic error.
  drm/amdgpu: initialize amdgpu_cgs_acpi_eval_object result value
  drm/amdgpu: precedence bug in amdgpu_device_init()
  drm/amdgpu: fix num_rbs exposed to userspace (v2)
  drm/amdgpu: missing bounds check in amdgpu_set_pp_force_state()

Merge branch 'exynos-drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-fixes

Since HW trigger mode was suppoted we have faced with a issue
that Display panel didn't work correctly when trigger mode was changed
in booting time.
For this, we keep trigger mode with SW trigger mode in default mode
like we did before.

However, we will need to consider PSR(Panel Self Reflash) mode to resolve
this issue fundamentally later.

* 'exynos-drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
  drm/exynos: use logical AND in exynos_drm_plane_check_size()
  drm/exynos: remove superfluous inclusions of fbdev header
  drm/exynos: g2d: drop the _REG postfix from the stride defines
  drm/exynos: don't use HW trigger for Exynos5420/5422/5800
  drm/exynos: fimd: don't set .has_hw_trigger in s3c6400 driver data
  drm/exynos: dp: Fix NULL pointer dereference due uninitialized connector

Two bug fixes for the atmel-hlcdc driver.

* tag 'drm-atmel-hlcdc-fixes/for-4.7-rc5' of github.com:bbrezillon/linux-at91:
  drm: atmel-hlcdc: Fix OF graph parsing
  drm: atmel-hlcdc: actually disable scaling when no scaling is required

Merge tag 'sunxi-drm-fixes-for-4.7' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into drm-fixes

Allwinner sun4i DRM driver fixes

A bunch of fixes that address:
  - Compilation errors in various corner cases
  - Move to helpers
  - Fix the pixel clock computation
  - Fix our panel probe

* tag 'sunxi-drm-fixes-for-4.7' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
  drm: sun4i: do cleanup if RGB output init fails
  drm/sun4i: Convert to connector register helpers
  drm/sun4i: remove simplefb at probe
  drm/sun4i: rgb: panel is an error pointer
  drm/sun4i: defer only if we didn't find our panel
  drm/sun4i: rgb: Validate the clock rate
  drm/sun4i: request exact rates to our parents
  drm: sun4i: fix probe error handling
  drm: sun4i: print DMA address correctly
  drm/sun4i: add COMMON_CLK dependency

 Hi Dave, just a couple of display fixes, both stable stuff. Maybe we'll
be able to enable fbc by default one day.

* tag 'drm-intel-fixes-2016-06-22' of git://anongit.freedesktop.org/drm-intel:
  drm/i915/fbc: Disable on HSW by default for now
  drm/i915: Revert DisplayPort fast link training feature

* 'linux-4.7' of git://github.com/skeggsb/linux:
  drm/nouveau: fix for disabled fbdev emulation

Hello,

after this commit:

commit f045f459
Author: Ben Skeggs <bskeggs@redhat.com>
Date:   Thu Jun 2 12:23:31 2016 +1000
    drm/nouveau/fbcon: fix out-of-bounds memory accesses

kernel started to oops when loading nouveau module when using GTX 780 Ti
video adapter. This patch fixes the problem.

Bug report: https://bugzilla.kernel.org/show_bug.cgi?id=120591Signed-off-by: Dmitrii Tcvetkov <demfloro@demfloro.ru>
Suggested-by: Ilia Mirkin <imirkin@alum.mit.edu>
Fixes: f045f459 ("nouveau_fbcon_init()")
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Cc: stable@vger.kernel.org

>From https://bugs.freedesktop.org/show_bug.cgi?id=96461 :

This was kind of a difficult bug to track down. If you're using a
Haswell system running GNOME and you have fbc completely enabled and
working, playing videos can result in video artifacts. Steps to
reproduce:

- Run GNOME
- Ensure FBC is enabled and active
- Download a movie, I used the ogg version of Big Buck Bunny for this
- Run `gst-launch-1.0 filesrc location='some_movie.ogg' ! decodebin !
  glimagesink` in a terminal
- Watch for about over a minute, you'll see small horizontal lines go
  down the screen.

For the time being, disable FBC for Haswell by default.

Stefan Richter reported kernel freezes (no video artifacts) when fbc
is on.  (E3-1245 v3 with HD P4600; openbox and some KDE and LXDE
applications, thread begins at https://lkml.org/lkml/2016/4/26/813).
We also got reports from Steven Honeyman on openbox+roxterm.

v2 (From Paulo):
  - Add extra information to the commit message
  - Add Fixes tag
  - Rebase

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96461
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96464
Fixes: a98ee793 ("drm/i915/fbc: enable FBC by default on HSW and BDW")
Cc: stable@vger.kernel.org
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Lyude <cpaul@redhat.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1465487895-7401-1-git-send-email-cpaul@redhat.com
(cherry picked from commit c7f7e2fe)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

It has been found out that in some HW combination the DisplayPort
fast link training feature caused screen flickering. Let's revert
this feature for now until we can ensure that the feature works for
all platforms.

This is a manual revert of commits 5fa836a9 ("drm/i915: DP link
training optimization") and 4e96c977 ("drm/i915: eDP link training
optimization").

Fixes: 5fa836a9 ("drm/i915: DP link training optimization")
Fixes: 4e96c977 ("drm/i915: eDP link training optimization")
Cc: <stable@vger.kernel.org> # v4.2+

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=91393Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1466410226-19543-1-git-send-email-mika.kahola@intel.com
(cherry picked from commit 91df09d9)

Power saving feature which reduces the amount of
voltage needed for specific engine clocks.
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

avfs feature is for voltage control based on
gpu system clock on polaris10
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

To minimize the dram power expenditure during static -screen
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

sync up with internal programming recommendations.
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Missing pcie dpm settings.
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

before request performance state.
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

Wrong value passed to acpi_pcie_perf_request.
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

the error lead powerplay can't get display info in DGPU case.
store_cc6_data just implement in APU.
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

atmel_hlcdc_create_outputs() iterates over OF graph nodes and releases
the node (using of_node_put()) after each iteration, which is wrong
since for_each_endpoint_of_node() is already taking care of that.

Move the of_node_put() call in the error path.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reviewed-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Fixes: 17a8e03e ("drm: atmel-hlcdc: rework the output code to support drm bridges")

The driver is only enabling scaling, but never disabling it, thus, if you
enable the scaling feature once it stays enabled forever.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reported-by: Alex Vazquez <avazquez.dev@gmail.com>
Reviewed-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Fixes: 1a396789 ("drm: add Atmel HLCDC Display Controller support")
Cc: <stable@vger.kernel.org>

amdgpu_cgs_acpi_eval_object() returned the value of variable "result"
without initializing it first.

This bug has been found by compiling the kernel with clang.  The
compiler complained:

    drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c:972:14: error: variable
    'result' is used uninitialized whenever 'for' loop exits because its
    condition is false [-Werror,-Wsometimes-uninitialized]
            for (i = 0; i < count; i++) {
                        ^~~~~~~~~
    drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c:1011:9: note: uninitialized
    use occurs here
            return result;
                   ^~~~~~
    drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c:972:14: note: remove the
    condition if it is always true
            for (i = 0; i < count; i++) {
                        ^~~~~~~~~
    drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c:864:12: note: initialize the
    variable 'result' to silence this warning
            int result;
                      ^
                       = 0

Fixes: 3f1d35a0 ("drm/amdgpu: implement new cgs interface for acpi
function")
Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Cc: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

! has higher precedence than bitwise & so we need to add parenthesis
for this to work as intended.

Fixes: 048765ad ('amdgpu: fix asic initialization for virtualized environments (v2)')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Pull UDF fixes and a reiserfs fix from Jan Kara:
 "A couple of udf fixes (most notably a bug in parsing UDF partitions
  which led to inability to mount recent Windows installation media) and
  a reiserfs fix for handling kstrdup failure"

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  reiserfs: check kstrdup failure
  udf: Use correct partition reference number for metadata
  udf: Use IS_ERR when loading metadata mirror file entry
  udf: Don't BUG on missing metadata partition descriptor

Pull dmaengine fixes from Vinod Koul:
 "Some fixes has piled up, so time to send them upstream.

  These fixes include:
   - at_xdmac fixes for residue and other stuff
   - update MAINTAINERS for dma dt bindings
   - mv_xor fix for incorrect offset"

* tag 'dmaengine-fix-4.7-rc4' of git://git.infradead.org/users/vkoul/slave-dma:
  dmaengine: mv_xor: Fix incorrect offset in dma_map_page()
  dmaengine: at_xdmac: double FIFO flush needed to compute residue
  dmaengine: at_xdmac: fix residue corruption
  dmaengine: at_xdmac: align descriptors on 64 bits
  MAINTAINERS: Add file patterns for dma device tree bindings

Pull ARM SoC fixes from Olof Johansson:
 "Another batch of fixes for ARM SoC platforms.  Most are smaller fixes.

  Two areas that are worth pointing out are:

   - OMAP had a handful of changes to voltage specs that caused a bit of
     churn, most of volume of change in this branch is due to this.

   - There are a couple of _rcuidle fixes from Paul that touch common
     code and came in through the OMAP tree since they were the ones who
     saw the problems.

 The rest is smaller changes across a handful of platforms"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (36 commits)
  ARM: dts: STi: stih407-family: Disable reserved-memory co-processor nodes
  ARM: dts: am437x-sk-evm: Reduce i2c0 bus speed for tps65218
  ARM: OMAP2+: timer: add probe for clocksources
  ARM: OMAP1: fix ams-delta FIQ handler to work with sparse IRQ
  memory: omap-gpmc: Fix omap gpmc EXTRADELAY timing
  arm: Use _rcuidle for smp_cross_call() tracepoints
  MAINTAINERS: Add myself as reviewer of ARM FSL/NXP
  ARM: OMAP: DRA7: powerdomain data: Remove unused pwrsts_mem_ret
  ARM: OMAP: DRA7: powerdomain data: Remove unused pwrsts_logic_ret
  ARM: OMAP: DRA7: powerdomain data: Set L3init and L4per to ON
  ARM: imx6ul: Fix Micrel PHY mask
  ARM: OMAP2+: Select OMAP_INTERCONNECT for SOC_AM43XX
  ARM: dts: DRA74x: fix DSS PLL2 addresses
  ARM: OMAP2: Enable Errata 430973 for OMAP3
  ARM: dts: socfpga: Add missing PHY phandle
  ARM: dts: exynos: Fix port nodes names for Exynos5420 Peach Pit board
  ARM: dts: exynos: Fix port nodes names for Exynos5250 Snow board
  ARM: dts: sun6i: yones-toptech-bs1078-v2: Drop constraints on dc1sw regulator
  ARM: dts: sun6i: primo81: Drop constraints on dc1sw regulator
  ARM: dts: sunxi: Add OLinuXino Lime2 eMMC to the Makefile
  ...

OMAP-GPMC: Fixes for for v4.7-rc cycle:

- Fix omap gpmc EXTRADELAY timing. The DT provided timings
were wrongly used causing devices requiring extra delay timing
to fail.

* tag 'gpmc-omap-fixes-for-v4.7' of https://github.com/rogerq/linux:
  memory: omap-gpmc: Fix omap gpmc EXTRADELAY timing
  + Linux 4.7-rc3
Signed-off-by: Olof Johansson <olof@lixom.net>

Merge tag 'omap-for-v4.7/fixes-powedomain' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Fixes for omaps for v4.7-rc cycle:

- Fix dra7 for hardware issues limiting L4Per and L3init power domains
  to on state. Without this the devices may not work correctly after
  some time of use because of asymmetric aging. And related to this,
  let's also remove the unusable states.

- Always select omap interconnect for am43x as otherwise the am43x
  only configurations will not boot properly. This can happen easily
  for any product kernels that leave out other SoCs to save memory.

- Fix DSS PLL2 addresses that have gone unused for now

- Select erratum 430973 for omap3, this is now safe to do and can
  save quite a bit of debugging time for people who may have left
  it out.

* tag 'omap-for-v4.7/fixes-powedomain' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP: DRA7: powerdomain data: Remove unused pwrsts_mem_ret
  ARM: OMAP: DRA7: powerdomain data: Remove unused pwrsts_logic_ret
  ARM: OMAP: DRA7: powerdomain data: Set L3init and L4per to ON
  ARM: OMAP2+: Select OMAP_INTERCONNECT for SOC_AM43XX
  ARM: dts: DRA74x: fix DSS PLL2 addresses
  ARM: OMAP2: Enable Errata 430973 for OMAP3
  + Linux 4.7-rc2
Signed-off-by: Olof Johansson <olof@lixom.net>

The current bitwise AND should result in the same assembler
but this is what the code is actually supposed to do.
Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

Neither of these files issue any fbdev related calls.
Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

This makes the defines consistent with the rest.
Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

Commit a6f75aa1 ("drm/exynos: fimd: add HW trigger support") added
hardware trigger support to the FIMD controller driver. But this broke
the display in at least the Exynos5800 Peach Pi Chromebook.

So until the issue is fixed, avoid using HW trigger for the Exynos5420
based boards and use SW trigger as it was before the mentioned commit.
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

The field value is only checked in fimd_setup_trigger() if .trg_type is
I80_HW_TRG so there's no point in setting this field for the s3c6400 if
is never going to be used since .trg_type is not set.
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

Commit 3424e3a4 ("drm: bridge: analogix/dp: split exynos dp driver to
bridge directory") split the Exynos DP core driver into a core driver and
a bridge driver for the Analogix chip since that is also used by Rockchip.

But the change introduced a regression causing a NULL pointer dereference
when trying to access an uninitialized connector in the driver .get_modes:

Fix this by instead of having a connector struct for both the Exynos and
Analogix drivers, just use the connector initialized in the bridge driver.

Fixes: 3424e3a4 ("drm: bridge: analogix/dp: split exynos dp driver to bridge directory")
Reported-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Yakir Yang <ykk@rock-chips.com>
Tested-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>