The PCI core calls pm_runtime_forbid() on device probe in pci_pm_init(),
making this the default state when radeon is loaded.
radeon_driver_load_kms() therefore calls pm_runtime_allow(), but there's
no pm_runtime_forbid() in radeon_driver_unload_kms() to balance it. Add
it so that we leave the device in the same state that we found it.

This isn't a bug, it's just good housekeeping. When radeon is first
loaded with runpm=1, then unloaded and loaded again with runpm=0,
pm_runtime_forbid() will be called from radeon_pmops_runtime_idle() or
radeon_pmops_runtime_suspend(), so the behaviour is correct. If there
ever is a third party driver for AMD cards, this commit avoids that it
has to clean up behind radeon.

Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: NLukas Wunner <lukas@wunner.de>
Acked-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/25a3e20b786fd66b10f40fa24c61dd36c33270da.1465392124.git.lukas@wunner.de

radeon_device_init() returns an error if either of the two calls to
radeon_init() fail. One level up in the call stack,
radeon_driver_load_kms() will then skip runtime pm initialization and
call radeon_driver_unload_kms(), which acquires a runtime pm ref that
is leaked.

Balance by releasing a runtime pm ref in the error path of
radeon_device_init().

Fixes: 10ebc0bc ("drm/radeon: add runtime PM support (v2)")
Cc: Dave Airlie <airlied@redhat.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: NLukas Wunner <lukas@wunner.de>
Acked-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/fa5bb977c1fe00474acedae5b03232dbf0b49410.1465392124.git.lukas@wunner.de

radeon_driver_load_kms() calls pm_runtime_put_autosuspend() if
radeon_is_px(dev), but radeon_driver_unload_kms() calls
pm_runtime_get_sync() unconditionally. We therefore leak a runtime pm
ref whenever radeon is unloaded on a non-PX machine or if runpm=0. The
GPU will subsequently never runtime suspend after loading radeon again.

Fix by taking the runtime pm ref under the same condition that it was
released on driver load.

Fixes: 10ebc0bc ("drm/radeon: add runtime PM support (v2)")
Cc: Dave Airlie <airlied@redhat.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: NLukas Wunner <lukas@wunner.de>
Acked-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/aaf71106c042126817aeca8b8e54ed468ab61ef7.1465392124.git.lukas@wunner.de

The PCI core calls pm_runtime_forbid() on device probe in pci_pm_init(),
making this the default state when nouveau is loaded. nouveau_drm_load()
therefore calls pm_runtime_allow(), but there's no pm_runtime_forbid()
in nouveau_drm_unload() to balance it. Add it so that we leave the
device in the same state that we found it.

This isn't a bug, it's just good housekeeping. When nouveau is first
loaded with runpm=1, then unloaded and loaded again with runpm=0,
pm_runtime_forbid() will be called from nouveau_pmops_runtime_idle() or
nouveau_pmops_runtime_suspend(), so the behaviour is correct. The nvidia
blob doesn't use runtime pm, but if it ever does, this commit avoids
that it has to clean up behind nouveau.

Cc: Ben Skeggs <bskeggs@redhat.com>
Tested-by: NKarol Herbst <karolherbst@gmail.com>
Tested-by: NPeter Wu <peter@lekensteyn.nl>
Signed-off-by: NLukas Wunner <lukas@wunner.de>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/92cf96445088217a4d7d7081b90140f2d6f047da.1465392124.git.lukas@wunner.de

nouveau_drm_load() calls pm_runtime_put() if nouveau_runtime_pm != 0,
but nouveau_drm_unload() calls pm_runtime_get_sync() unconditionally.
We therefore leak a runtime pm ref whenever nouveau is loaded with
runpm=0 and then unloaded. The GPU will subsequently never runtime
suspend even if nouveau is loaded again with runpm=1.

Fix by taking the runtime pm ref under the same condition that it was
released on driver load.

Fixes: 5addcf0a ("nouveau: add runtime PM support (v0.9)")
Cc: Dave Airlie <airlied@redhat.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Reported-by: NKarol Herbst <karolherbst@gmail.com>
Tested-by: NKarol Herbst <karolherbst@gmail.com>
Tested-by: NPeter Wu <peter@lekensteyn.nl>
Signed-off-by: NLukas Wunner <lukas@wunner.de>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1544b82007037601fbc510b1a50edc56c529e75f.1465392124.git.lukas@wunner.de

MT8173 HDMI support

- device tree binding documentation for MT8173 HDMI encoder, CEC, DDC,
  and PHY
- drivers for MT8173 HDMI encoder, CEC (HPD only for now), DDC, and PHY
- enable HDMI output via a custom SMCCC call
- add ddc-i2c-bus property to HDMI connector device tree binding

* tag 'mediatek-drm-2016-06-20' of git://git.pengutronix.de/git/pza/linux:
  dt-bindings: hdmi-connector: add DDC I2C bus phandle documentation
  drm/mediatek: enable hdmi output control bit
  drm/mediatek: Add HDMI support
  dt-bindings: drm/mediatek: Add Mediatek HDMI dts binding

some rcar-du fixes.

* 'drm/next/du' of git://linuxtv.org/pinchartl/media:
  drm: rcar-du: error message is not needed for EPROBE_DEFER
  drm: rcar-du: error message is not needed for drm_vblank_init()
  rcar-du: add/rename DEFR6 TCON bits

- Infrastructure for GVT-g (paravirtualized gpu on gen8+), from Zhi Wang
- another attemp at nonblocking atomic plane updates
- bugfixes and refactoring for GuC doorbell code (Dave Gordon)
- GuC command submission enabled by default, if fw available (Dave Gordon)
- more bxt w/a (Arun Siluvery)
- bxt phy improvements (Imre Deak)
- prep work for stolen objects support (Ankitprasa Sharma & Chris Wilson)
- skl/bkl w/a update from Mika Kuoppala
- bunch of small improvements and fixes all over, as usual

* tag 'drm-intel-next-2016-06-20' of git://anongit.freedesktop.org/drm-intel: (81 commits)
  drm/i915: Update DRIVER_DATE to 20160620
  drm/i915: Introduce GVT context creation API
  drm/i915: Support LRC context single submission
  drm/i915: Introduce execlist context status change notification
  drm/i915: Make addressing mode bits in context descriptor configurable
  drm/i915: Make ring buffer size of a LRC context configurable
  drm/i915: gvt: Introduce the basic architecture of GVT-g
  drm/i915: Fold vGPU active check into inner functions
  drm/i915: Use offsetof() to calculate the offset of members in PVINFO page
  drm/i915: Factor out i915_pvinfo.h
  drm/i915: Serialise presentation with imported dmabufs
  drm/i915: Use atomic commits for legacy page_flips
  drm/i915: Move fb_bits updating later in atomic_commit
  drm/i915: nonblocking commit
  Reapply "drm/i915: Pass atomic states to fbc update, functions."
  drm/i915: Roll out the helper nonblock tracking
  drm/i915: Signal drm events for atomic
  drm/i915/ilk: Don't disable SSC source if it's in use
  drm/i915/guc: (re)initialise doorbell h/w when enabling GuC submission
  drm/i915/guc: replace assign_doorbell() with select_doorbell_register()
  ...

Merge tag 'topic/drm-misc-2016-06-22-updated' of git://anongit.freedesktop.org/drm-intel into drm-next

Again a pile of things all over
- Conversion to rst from docbook from Jani. Looks real pretty, and the
  source is now actually readable (compared to horrible, horrible docbook
  xml)! https://01.org/linuxgraphics/gfx-docs/drm/
- device register/unregister rework from Chris, with follow-up work from
  Benjamin. Allows more drivers to demidlayer load/unload and others to
  remove a bit of boilerplate.
- master/auth related cleanup, with docs
- some dma-buf polish, merged by Sumit
- small stuff all over (like build fixes from Arnd)

Group maintainership seems to slowly take off, with both Thierry and Sumit
pushing a few things. No hiccups thus far.

* tag 'topic/drm-misc-2016-06-22-updated' of git://anongit.freedesktop.org/drm-intel: (68 commits)
  drm/vc4: Remove unused connector
  drm/fb-helper: Reduce READ_ONCE(master) to lockless_dereference
  drm/sun4i: Remove open-coded drm_connector_register_all()
  drm/vc4: Remove open-coded drm_connector_register_all()
  drm/atmel-hlcdc: Remove redundant call to drm_connector_unregister_all()
  drm: document drm_auth.c
  drm: Clear up master tracking booleans
  drm: Extract drm_is_current_master
  drm: Refactor drop/set master code a bit
  drm: Lobotomize set_busid nonsense for !pci drivers
  drm: Nuke SET_UNIQUE ioctl
  drm: Don't call drm_dev_set_unique from platform drivers
  drm/vgem: Stop calling drm_drv_set_unique
  drm: Use dev->name as fallback for dev->unique
  drm: Clean up drm_crtc.h
  drm: Move master pointer from drm_minor to drm_device
  drm: sti: rework init sequence
  drm: sti: use late_register and early_unregister callbacks
  drm/amdkfd: Clean up inline handling
  drm: Add callbacks for late registering
  ...

Add basic support for the sii902x RGB -> HDMI bridge.

* tag 'drm-sii902x' of github.com:bbrezillon/linux-at91:
  drm/bridge: Add sii902x DT bindings doc
  drm/bridge: Add sii902x driver

Somehow I didn't spot this when pushing :(

Fixes: 398e9799 ("drm/vc4: Remove open-coded drm_connector_register_all()")
Acked-by: NChris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: NDaniel Vetter <daniel.vetter@intel.com>

We are only documenting that the read is outside of the lock, and do not
require strict ordering on the operation. In this case the more relaxed
lockless_dereference() will suffice.
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1466581572-16608-1-git-send-email-chris@chris-wilson.co.uk

drm_dev_register() will now register all known connectors, so we no
longer have to do so manually.
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Chen-Yu Tsai <wens@csie.org>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1466501283-19976-4-git-send-email-chris@chris-wilson.co.uk

drm_dev_register() will now register all known connectors, so we no
longer have to do so manually.
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>
Cc: Eric Anholt <eric@anholt.net>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1466501283-19976-3-git-send-email-chris@chris-wilson.co.uk

drm_connector_unregister_all() is not automatically called by
drm_dev_unregister() so we can drop the local call.
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: David Airlie <airlied@linux.ie>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1466501283-19976-2-git-send-email-chris@chris-wilson.co.uk

Also extract drm_auth.h for nicer grouping.

v2: Nuke the other comments since they don't really explain a lot, and
within the drm core we generally only document functions exported to
drivers: The main audience for these docs are driver writers.

v3: Limit the exposure of drm_master internals by only including
drm_auth.h where it is neede (Chris).

v4: Spelling polish (Emil).

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: NChris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: NEmil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@intel.com>

- is_master can be removed, we can compute this by checking allowed_master
  (which really just tracks whether a master struct has been allocated
  for this fpriv in either open or set_master), and whether the fpriv is
  the current master on the device.

- that frees up is_master as a good replacement name for allowed_master.
  With that it's clear that it tracks whether the fpriv is a master (with
  possibly clients attached to it and authenticated against it), and that
  one of those fprivs with is_master set is the current master.

v2: Fix kerneldoc for is_master (Emil).

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: NChris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: NEmil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1466499262-18717-10-git-send-email-daniel.vetter@ffwll.ch

Just rolling out a bit of abstraction to be able to clean
up the master logic in the next step.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: NChris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: NEmil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

File open/set_maseter ioctl and file close/drop_master ioctl share the
same master handling code. Extract it.

Note that vmwgfx's master_set callback needs to know whether the
master is a new one or has been used already, so thread this through.
On the close/drop side a similar parameter existed, but wasnt used.
Drop it to simplify the flow.

v2: Try to make it not leak so much (Emil).

v3: Send out the right version ...

Cc: Emil Velikov <emil.l.velikov@gmail.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: NChris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: NEmil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1466511638-9885-1-git-send-email-daniel.vetter@ffwll.ch

We already have a fallback in place to fill out the unique from
dev->unique, which is set to something reasonable in drm_dev_alloc.

Which means we only need to have a special set_busid for pci devices,
to be able to care the backwards compat code for drm 1.1 around, which
libdrm still needs.

While developing and testing this patch things blew up in really
interesting ways, and the code is rather confusing in naming things
between the kernel code, ioctl #defines and libdrm. For the next brave
dragon slayer, document all this madness properly in the userspace
interface section of gpu.tmpl.

v2: Make drm_dev_set_unique static and update kerneldoc.

v3: Entire rewrite, plus document what's going on for posterity in the
gpu docbook uapi section.

v4: Drop accidental amdgpu hunk (Emil).

v5: Drop accidental omapdrm vblank counter change (Emil).

v6: Rebase on top of the sphinx conversion.

Cc: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Cc: Emil Velikov <emil.l.velikov@gmail.com>
Tested-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> (virt_gpu)
Reviewed-by: NEmil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@intel.com>

Ever since

commit 2e1868b560315a8b20d688e646c489a5ad93eeae
Author: Eric Anholt <anholt@freebsd.org>
Date:   Wed Jun 16 09:25:21 2004 +0000

    DRI trunk-20040613 import

the X server supports drm 1.1, thus doesn't call call libdrm's
drmSetBusid - the sole user of this ioctl. When reviewing this note
that for hilarity both the kernel-internal functions (set_busid) and
the libdrm wrapper (drmSetBusid) have names not matching this ioctl
(SET_UNIQUE).

v2: Polish commit message (Emil).

Cc: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: NEmil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1466499262-18717-6-git-send-email-daniel.vetter@ffwll.ch

Since

commit e112e593
Author: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Date:   Fri Dec 11 11:20:28 2015 +0100

    drm: use dev_name as default unique name in drm_dev_alloc()

we're using a reasonable default which should work for everyone. Only
mtk, rcar-du and sun4i are affected, and as kms-only drivers without
any rendering support no one should ever care about the unique name

v2: Rebase on top of mediatek.

Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: NEmil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: NPhilipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: NDaniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1466499262-18717-5-git-send-email-daniel.vetter@ffwll.ch

With the previous patch this is now redudant, the core always
sets a reasonable dev->unique string.

Cc: Sean Paul <seanpaul@chromium.org>
Reviewed-by: NEmil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1466499262-18717-4-git-send-email-daniel.vetter@ffwll.ch

Lots of arm drivers get this wrong and for most arm boards this is the
right thing actually. And anyway with most loaders you want to chase
sysfs links anyway to figure out which dri device you want.

This will fix dmesg noise for rockchip and sti.

Also add a fallback to driver->name for entirely virtual drivers like
vgem.

v2: Rebase on top of

commit e112e593
Author: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Date:   Fri Dec 11 11:20:28 2015 +0100

    drm: use dev_name as default unique name in drm_dev_alloc()

and simplify a bit. Plus add a comment.

v3: WARN_ON(!dev->unique) as discussed with Emil.

Cc: Ilia Mirkin <imirkin@alum.mit.edu>
Reported-by: NIlia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> (v2)
Reviewed-by: NEmil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1466499262-18717-3-git-send-email-daniel.vetter@ffwll.ch

- Group declarations for separate files (drm_bridge.c, drm_edid.c)
- Move declarations only used within drm.ko to drm_crtc_internal.h
- drm_property_type_valid to drm_crtc.c, its only callsite
Reviewed-by: NChris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: NEmil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1466499262-18717-2-git-send-email-daniel.vetter@ffwll.ch

There can only be one current master, and it's for the overall device.
Render/control minors don't support master-based auth at all.

This simplifies the master logic a lot, at least in my eyes: All these
additional pointer chases are just confusing.

While doing the conversion I spotted some locking fail:
- drm_lock/drm_auth check dev->master without holding the
  master_mutex. This is fallout from

  commit c996fd0b
  Author: Thomas Hellstrom <thellstrom@vmware.com>
  Date:   Tue Feb 25 19:57:44 2014 +0100

      drm: Protect the master management with a drm_device::master_mutex v3

  but I honestly don't care one bit about those old legacy drivers
  using this.

- debugfs name info should just grab master_mutex.

- And the fbdev helper looked at it to figure out whether someone is
  using KMS. We just need a consistent value, so READ_ONCE. Aside: We
  should probably check if anyone has opened a control node too, but I
  guess current userspace doesn't really do that yet.

v2: Balance locking, reported by Julia.

v3: Rebase on top of Chris' oops fixes.

Cc: Julia Lawall <julia.lawall@lip6.fr>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> (v2)
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com> (v2)
Signed-off-by: NDaniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1466499262-18717-1-git-send-email-daniel.vetter@ffwll.ch

Use drm_dev_alloc() and drm_dev_register() instead of .load()
To simplify init sequence only create fbdev when requested
in output_poll_changed().

version 2:
remove call to drm_connector_unregister_all() and
drm_dev_set_unique()
Signed-off-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1466514580-15194-4-git-send-email-benjamin.gaignard@linaro.org

Make sti driver use register callback to move debugfs
initialization out of sub-components creation.
This will allow to convert driver .load() to
drm_dev_alloc() and drm_dev_register().

sti_compositor bring up 2 crtc but only one debugfs init is
needed so use drm_crtc_index to do it on the first one.
This can't be done in sti_drv because only sti_compositor have
access to the devices.
It is almost the same for sti_encoder which handle multiple
encoder while one only debugfs entry is needed so add a boolean
to avoid multiple debugfs initialization
Signed-off-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1466514580-15194-3-git-send-email-benjamin.gaignard@linaro.org

- inline functions need to be static inline, otherwise gcc can opt to
  not inline and the linker gets unhappy.
- no forward decls for inline functions, just include the right headers.

Cc: Oded Gabbay <oded.gabbay@gmail.com>
Cc: Ben Goz <ben.goz@amd.com>
Reviewed-by: NOded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1466500235-21282-2-git-send-email-daniel.vetter@ffwll.ch

Like what has been done for connectors add callbacks on encoder,
crtc and plane to let driver do actions after drm device registration.

Correspondingly, add callbacks called before unregister drm device.

version 2:
add drm_modeset_register_all() and drm_modeset_unregister_all()
to centralize all calls

version 3:
in error case unwind registers in drm_modeset_register_all
fix uninitialed return value
inverse order of unregistration in drm_modeset_unregister_all

version 4:
move function definitions in drm_crtc_internal.h
remove not needed documentation
Signed-off-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: NChris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1466519829-4000-1-git-send-email-benjamin.gaignard@linaro.org

Commit 7566e247 ("drm/fsl-dcu: handle initialization errors properly")
introduced error handling during initialization, but with a wrong cleanup
order.

Replace the error handling with the generic cleanup function
drm_mode_config_cleanup.
Signed-off-by: NStefan Agner <stefan@agner.ch>
Signed-off-by: NThierry Reding <treding@nvidia.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20160619021543.23587-1-stefan@agner.ch

We get a harmless build warning when trying to use the mediatek DRM
driver with IOMMU support disabled:

	warning: (DRM_MEDIATEK) selects IOMMU_DMA which has unmet direct dependencies (IOMMU_SUPPORT)

However, the IOMMU_DMA symbol is not meant to be used by drivers at all,
and this driver doesn't seem to have a strict dependency on it other
than using the mediatek IOMMU driver that does.

Since we also want to be able to do compile tests with the driver on
other platforms, the IOMMU_DMA symbol should not be selected here.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NPhilipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: NThierry Reding <treding@nvidia.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1462997501-982363-1-git-send-email-arnd@arndb.de

The gpu documentation has now been converted to reStructuredText files
under Documentation/gpu. Remove the obsolete DocBook template. Also
remove it from MAINTAINERS.

Good riddance.
Signed-off-by: NJani Nikula <jani.nikula@intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/8d673f75fe686371ed9838682c368a4e3b96bf54.1466506505.git.jani.nikula@intel.com

Make the documents more manageable.
Signed-off-by: NJani Nikula <jani.nikula@intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/be992e56eb8442d6e03b52444df5a42525085718.1466506505.git.jani.nikula@intel.com

Pandoc really did a bad job of converting the big KMS properties table
to RST. Instead, put the properties into a separate plain text CSV file,
and include it in the RST file. The generated output isn't very pretty,
but at least the information is there, and it's stored in a format
that's easier to process and improve upon at a later time.

The CSV file was generated by copy-pasting the table from the HTML
generated by the DocBook toolchain into LibreOffice Calc, and then saved
as CSV, unmodified.
Signed-off-by: NJani Nikula <jani.nikula@intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/17053ff08caf5cfac4f478437ef796f83a31d772.1466506505.git.jani.nikula@intel.com

While splitting the document up, the headings "shifted" from what pandoc
generated. Use the following order for headings for consistency:

==============
Document title
==============

First
=====

Second
------

Third
~~~~~

Leave the lower level headings as they are; I think those are less
important. Although RST doesn't mandate a specific order ("Rather than
imposing a fixed number and order of section title adornment styles, the
order enforced will be the order as encountered."), having the higher
levels the same overall makes it easier to follow the documents.

[I'm sort of kind of writing the recommendation for docs-next in the
mean time, but this order seems sensible, and is what I'm proposing.]
Signed-off-by: NJani Nikula <jani.nikula@intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/126f42734defac6cbb8496a481d58db7b38461dd.1466506505.git.jani.nikula@intel.com

We'll want to keep an eye on what's going on in these files.
Signed-off-by: NJani Nikula <jani.nikula@intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/4d409e09c475cc0bdf7a0312e30c0d3f8d535fc5.1466506505.git.jani.nikula@intel.com

Make the gpu documentation easier to manage by splitting to separate
files. Again, this is just the split, no real edits.
Signed-off-by: NJani Nikula <jani.nikula@intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/bd2b599b5105c28c8f05923005e6cc9b7efa7fc1.1466506505.git.jani.nikula@intel.com

This is the first step towards converting the DocBook gpu.tmpl to Sphinx
and reStructuredText, the new kernel documentation tool and markup.

Use Jon's "cheesy conversion script" in Documentation/sphinx/tmplcvt to
do the rough conversion. Do the manual edits in follow-up patches. Add a
new Documentation/gpu directories for the graphics related
documentation. (Hooray, now we can have directories based on topics
rather than tools under Documentation.)

We also won't remove the DocBook gpu.tmpl yet so it's easier to build
both and compare the results for parity.
Signed-off-by: NJani Nikula <jani.nikula@intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/bc7b4f9ac037632e0c8469c079d21fad5eaa39a0.1466506505.git.jani.nikula@intel.com

Rockchip just blew up here on testing, because I removed some "is this
crtc already disabled/enabled" state tracking from callbacks (not needed
with atomic). Turns out that was needed to work around rockchip still
calling legacy helper code.

Since me explaining on irc/mailing-list plus kerneldoc isn't enough,
be more verbose and add dmesg output. Not that anyone actually reads that,
either.

Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1465388359-8070-26-git-send-email-daniel.vetter@ffwll.ch