Commit Graph

1476 Commits

Author SHA1 Message Date
Daniel Vetter
da7bdda2af drm/fb-helper: Automatically clean up fb_info
Noticed that everyone duplicates the same logic here and we could safe
a few lines per driver. Yay for lots of drivers to make such tiny
refactors worth-while!

v2: Forgot to git add everything :(

v3: Actually remove release_fbi (Sean, Emil, Chris) ...

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Noralf Trønnes <noralf@tronnes.org>
Cc: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170207161603.17611-1-daniel.vetter@ffwll.ch
2017-02-07 21:36:28 +01:00
Hoegeun Kwon
7ff093d09f drm/exynos: fimd: Do not use HW trigger for exynos3250
Commit a6f75aa161 ("drm/exynos: fimd: add HW trigger support") added
hardware trigger support to the FIMD controller driver. I have tested
but this broke the display in at least the exynos3250 Gear 2. So until
the issue is fixed, avoid using HW trigger for the exynos3250 based
boards and use SW trigger as it was before the mentioned commit.

Signed-off-by: Hoegeun Kwon <hoegeun.kwon@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2017-02-07 13:54:01 +09:00
Andrzej Hajda
aa18157016 drm/exynos/hdmi: add bridge support
On TM2/TM2e platforms HDMI output is connected to MHL bridge
SiI8620. To allow configure UltraHD modes on the bridge
and to eliminate unsupported modes this bridge should be
attached to drm_encoder implemented in exynos_hdmi.

Changelog v1:
- fix drm_attach_bridge argument.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2017-02-07 13:52:52 +09:00
Andrzej Hajda
1514d50b7a drm/exynos/decon5433: signal vblank only on odd fields
In case of interlace mode irq is generated for odd and even fields, but
vblank should be signaled only for the last emitted field.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2017-02-07 13:52:52 +09:00
Andrzej Hajda
5aa6c9ace5 drm/exynos/decon5433: add support for interlace modes
Some registers should be programmed differently in interlace mode.
Additionally IP does not signal stop state properly in interlaced
mode, so warning has been removed.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2017-02-07 13:52:51 +09:00
Andrzej Hajda
849fb0de89 drm/exynos/hdmi: fix PLL for 27MHz settings
Current settings for 27MHz and 27.027MHz do not work. Use the settings from
vendor code instead.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2017-02-07 13:52:50 +09:00
Andrzej Hajda
10abdbc5ee drm/exynos/hdmi: fix VSI infoframe registers
VSI infoframe registers address space is non-contiguous, so infoframe write
should be split into two chunks.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2017-02-07 13:52:50 +09:00
Andrzej Hajda
6482258802 drm/exynos/hdmi: add 297MHz pixel clock support
297MHz is used by Ultra HD modes.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2017-02-07 13:52:49 +09:00
Tobias Jakobi
d796ddc9ea drm/exynos: g2d: change platform driver name to 'exynos-drm-g2d'
The current name is 's5p-g2d', which is identical with the driver
name of the old V4L2 driver in media/platform.
This is probably due to the DRM driver being based on the V4L2
driver when it was initially created. Still the clashing of driver
names is confusing, so rename it to something in line with the
other DRM subdrivers.

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2017-02-07 13:52:49 +09:00
Andrzej Hajda
b93c2e8b5d drm/exynos/decon5433: configure sysreg in case of hardware trigger
In case of HW trigger mode, sysreg register should be configured to
enable TE functionality. The patch refactors also trigger setup function.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2017-02-07 13:52:48 +09:00
Gabriel Krisman Bertazi
e4563f6ba7 drm: Rely on mode_config data for fb_helper initialization
Instead of receiving the num_crts as a parameter, we can read it
directly from the mode_config structure.  I audited the drivers that
invoke this helper and I believe all of them initialize the mode_config
struct accordingly, prior to calling the fb_helper.

I used the following coccinelle hack to make this transformation, except
for the function headers and comment updates.  The first and second
rules are split because I couldn't find a way to remove the unused
temporary variables at the same time I removed the parameter.

// <smpl>
@r@
expression A,B,D,E;
identifier C;
@@
(
- drm_fb_helper_init(A,B,C,D)
+ drm_fb_helper_init(A,B,D)
|
- drm_fbdev_cma_init_with_funcs(A,B,C,D,E)
+ drm_fbdev_cma_init_with_funcs(A,B,D,E)
|
- drm_fbdev_cma_init(A,B,C,D)
+ drm_fbdev_cma_init(A,B,D)
)

@@
expression A,B,C,D,E;
@@
(
- drm_fb_helper_init(A,B,C,D)
+ drm_fb_helper_init(A,B,D)
|
- drm_fbdev_cma_init_with_funcs(A,B,C,D,E)
+ drm_fbdev_cma_init_with_funcs(A,B,D,E)
|
- drm_fbdev_cma_init(A,B,C,D)
+ drm_fbdev_cma_init(A,B,D)
)

@@
identifier r.C;
type T;
expression V;
@@
- T C;
<...
when != C
- C = V;
...>
// </smpl>

Changes since v1:
 - Rebased on top of the tip of drm-misc-next.
 - Remove mention to sti since a proper fix got merged.

Suggested-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170202162640.27261-1-krisman@collabora.co.uk
2017-02-02 19:12:00 +01:00
Dave Airlie
18566acac1 Merge branch 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next
adding runtime PM support to MIC driver, and including some
cleanups - especially using atomic helper functions
instead of specific ones - and fixups.

* 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
  drm/exynos: g2d: prevent integer overflow in
  drm/exynos: fix a timeout loop
  drm/exynos: use atomic helper commit
  drm/exynos: remove unnecessary codes
  drm/exynos: mic: Add runtime PM support
  drm/exynos: Stop using drm_framebuffer_unregister_private
  drm/exynos: mic: Fix parse_dt function
  drm/exynos: mic: Add mode_set callback function
2017-02-01 08:43:42 +10:00
Dave Airlie
012bbe28c0 Merge tag 'drm-misc-next-2017-01-30' of git://anongit.freedesktop.org/git/drm-misc into drm-next
Another round of -misc stuff:
- Noralf debugfs cleanup cleanup (not yet everything, some more driver
  patches awaiting acks).
- More doc work.
- edid/infoframe fixes from Ville.
- misc 1-patch fixes all over, as usual

Noralf needs this for his tinydrm pull request.

* tag 'drm-misc-next-2017-01-30' of git://anongit.freedesktop.org/git/drm-misc: (48 commits)
  drm/vc4: Remove vc4_debugfs_cleanup()
  dma/fence: Export enable-signaling tracepoint for emission by drivers
  drm/tilcdc: Remove tilcdc_debugfs_cleanup()
  drm/tegra: Remove tegra_debugfs_cleanup()
  drm/sti: Remove drm_debugfs_remove_files() calls
  drm/radeon: Remove drm_debugfs_remove_files() call
  drm/omap: Remove omap_debugfs_cleanup()
  drm/hdlcd: Remove hdlcd_debugfs_cleanup()
  drm/etnaviv: Remove etnaviv_debugfs_cleanup()
  drm/etnaviv: allow build with COMPILE_TEST
  drm/amd/amdgpu: Remove drm_debugfs_remove_files() call
  drm/prime: Clarify DMA-BUF/GEM Object lifetime
  drm/ttm: Make sure BOs being swapped out are cacheable
  drm/atomic: Remove drm_atomic_debugfs_cleanup()
  drm: drm_minor_register(): Clean up debugfs on failure
  drm: debugfs: Remove all files automatically on cleanup
  drm/fourcc: add vivante tiled layout format modifiers
  drm/edid: Set YQ bits in the AVI infoframe according to CEA-861-F
  drm/edid: Set AVI infoframe Q even when QS=0
  drm/edid: Introduce drm_hdmi_avi_infoframe_quant_range()
  ...
2017-02-01 08:31:09 +10:00
Joonyoung Shim
e41456bfc8 drm/exynos: g2d: prevent integer overflow in
The size computations done in the ioctl function use an integer.
If userspace submits a request with req->cmd_nr or req->cmd_buf_nr
set to INT_MAX, the integer computations overflow later, leading
to potential (kernel) memory corruption.

Prevent this issue by enforcing a limit on the number of submitted
commands, so that we have enough headroom later for the size
computations.

Note that this change has no impact on the currently available
users in userspace, like e.g. libdrm/exynos.

While at it, also make a comment about the size computation more
detailed.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2017-01-31 08:50:35 +09:00
Dan Carpenter
8646dcb8a0 drm/exynos: fix a timeout loop
We were trying to print an error message if we timed out here, but the
loop actually ends with "tries" set to UINT_MAX and not zero.  Fix this
by changing from tries-- to --tries.

A for loop would actually be the most natural way to do this.  My fix
means we only loop 99 times instead of 100 but that's probably ok.

Fixes: a696394c52 ('drm/exynos: mixer: simplify loop in vp_win_reset()')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2017-01-31 08:50:30 +09:00
Inki Dae
41cbf0fdaa drm/exynos: use atomic helper commit
This patch replaces specific atomic commit function
with atomic helper commit one.

For this, it removes existing atomic commit function
and relevant code specific to Exynos DRM and makes
atomic helper commit to be used instead.

Below are changes for the use of atomic helper commit:
- add atomic_commit_tail callback specific to Exynos DRM
  . default implemention of atomic helper doesn't mesh well
    with runtime PM so the device driver which supports runtime
    PM should call drm_atomic_helper_commit_modeset_enables function
    prior to drm_atomic_helper_commit_planes function call.
    atomic_commit_tail callback implements this call ordering.
- allow plane commit only in case that CRTC device is enabled.
  . for this, it calls atomic_helper_commit_planes function
    with DRM_PLANE_COMMIT_ACTIVE_ONLY flag in atomic_commit_tail callback.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.com>
2017-01-31 08:49:47 +09:00
Inki Dae
9db41d4323 drm/exynos: remove unnecessary codes
This patch removes exynos_drm_crtc_cancel_page_flip call
when drm is closed because at that time, events will be released
by drm_events_release function.

Changelog v1:
- remove exynos_drm_crtc_cancel_page_flip function also because
  this funtion isn't used anymore.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
2017-01-31 08:49:42 +09:00
Marek Szyprowski
4e8ba5cc88 drm/exynos: mic: Add runtime PM support
This patch adds runtime support calls to notify device core when MIC
device is really in use. Runtime PM is implemented by enabling and
disabling clocks like in other Exynos DRM subdrivers. Adding runtime
PM support is needed to let power domain with this device to be turned
off when display is not used.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2017-01-31 08:49:38 +09:00
Daniel Vetter
328c057ca4 drm/exynos: Stop using drm_framebuffer_unregister_private
This is the deprecated function for when you embedded the framebuffer
somewhere else (which breaks refcounting). But exynos is using
drm_framebuffer_remove and a free-standing fb, so this is rendundant.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2017-01-31 08:49:35 +09:00
Hoegeun Kwon
cc2b022518 drm/exynos: mic: Fix parse_dt function
The OF graph is not necessary because the panel is a child of
dsi. therefore, the parse_dt function of dsi does not need to
check the remote_node connected to the panel. and the whole
parse_dt function should be refactored later.

Signed-off-by: Hoegeun Kwon <hoegeun.kwon@samsung.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2017-01-31 08:49:33 +09:00
Hoegeun Kwon
e87eb57c69 drm/exynos: mic: Add mode_set callback function
Before applying the patch, used the of_get_videomode function to
parse the display-timings in the panel which is the child driver
of dsi in the devicetree. this is wrong. So removed the
of_get_videomode and fixed to get videomode struct through
mode_set callback function.

Signed-off-by: Hoegeun Kwon <hoegeun.kwon@samsung.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2017-01-31 08:49:31 +09:00
Dave Airlie
3875623c56 Merge tag 'drm-misc-next-2017-01-23' of git://anongit.freedesktop.org/git/drm-misc into drm-next
- cleanups&fixes for dw-hdmi bride driver (Laurent)
- updates for adv bridge driver (John Stultz) for nexus
- drm_crtc_from_index helper rollout (Shawn Guo)
- removing drm_framebuffer_unregister_private from drivers&core
- target_vblank (Andrey Grodzovsky)
- misc tiny stuff

* tag 'drm-misc-next-2017-01-23' of git://anongit.freedesktop.org/git/drm-misc: (49 commits)
  drm: qxl: Open code teardown function for qxl
  drm: qxl: Open code probing sequence for qxl
  drm/bridge: adv7511: Re-write the i2c address before EDID probing
  drm/bridge: adv7511: Reuse __adv7511_power_on/off() when probing EDID
  drm/bridge: adv7511: Rework adv7511_power_on/off() so they can be reused internally
  drm/bridge: adv7511: Enable HPD interrupts to support hotplug and improve monitor detection
  drm/bridge: adv7511: Switch to using drm_kms_helper_hotplug_event()
  drm/bridge: adv7511: Use work_struct to defer hotplug handing to out of irq context
  drm: vc4: use crtc helper drm_crtc_from_index()
  drm: tegra: use crtc helper drm_crtc_from_index()
  drm: nouveau: use crtc helper drm_crtc_from_index()
  drm: mediatek: use crtc helper drm_crtc_from_index()
  drm: kirin: use crtc helper drm_crtc_from_index()
  drm: exynos: use crtc helper drm_crtc_from_index()
  dt-bindings: display: dw-hdmi: Clean up DT bindings documentation
  drm: bridge: dw-hdmi: Assert SVSRET before resetting the PHY
  drm: bridge: dw-hdmi: Fix the name of the PHY reset macros
  drm: bridge: dw-hdmi: Define and use macros for PHY register addresses
  drm: bridge: dw-hdmi: Detect PHY type at runtime
  drm: bridge: dw-hdmi: Handle overflow workaround based on device version
  ...
2017-01-27 12:10:24 +10:00
Dave Airlie
b0df0b251b Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into drm-next
Backmerge Linus master to get the connector locking revert.

* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux: (645 commits)
  sysctl: fix proc_doulongvec_ms_jiffies_minmax()
  Revert "drm/probe-helpers: Drop locking from poll_enable"
  MAINTAINERS: add Dan Streetman to zbud maintainers
  MAINTAINERS: add Dan Streetman to zswap maintainers
  mm: do not export ioremap_page_range symbol for external module
  mn10300: fix build error of missing fpu_save()
  romfs: use different way to generate fsid for BLOCK or MTD
  frv: add missing atomic64 operations
  mm, page_alloc: fix premature OOM when racing with cpuset mems update
  mm, page_alloc: move cpuset seqcount checking to slowpath
  mm, page_alloc: fix fast-path race with cpuset update or removal
  mm, page_alloc: fix check for NULL preferred_zone
  kernel/panic.c: add missing \n
  fbdev: color map copying bounds checking
  frv: add atomic64_add_unless()
  mm/mempolicy.c: do not put mempolicy before using its nodemask
  radix-tree: fix private list warnings
  Documentation/filesystems/proc.txt: add VmPin
  mm, memcg: do not retry precharge charges
  proc: add a schedule point in proc_pid_readdir()
  ...
2017-01-27 11:00:42 +10:00
Tobias Jakobi
c7afee63d1 drm/exynos: Remove Kconfig deps for FIMD and DECON7
While the Kconfig entries of FIMD and DECON7 both select
FB_MODE_HELPERS, the code doesn't use any of the functionality.

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1484928172-16784-1-git-send-email-tjakobi@math.uni-bielefeld.de
2017-01-23 09:36:04 +01:00
Andrzej Hajda
11d8bcef7a drm/exynos/decon5433: set STANDALONE_UPDATE_F on output enablement
DECON_TV requires STANDALONE_UPDATE after output enabling, otherwise it does
not start. This change is neutral for DECON.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2017-01-20 16:17:12 +09:00
Andrzej Hajda
1202a09632 drm/exynos/decon5433: fix CMU programming
DECON_CMU register has reserved bits which should not be zeroed, otherwise
IP can behave strangely and cause IOMMU faults.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2017-01-20 16:02:28 +09:00
Andrzej Hajda
4151e9a61c drm/exynos/decon5433: do not disable video after reset
decon_commit is called just after reset so video is disabled anyway.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2017-01-20 16:00:20 +09:00
Shawn Guo
a3c764e988 drm: exynos: use crtc helper drm_crtc_from_index()
Use drm_crtc_from_index() to find drm_crtc for given index, so that we
do not need to maintain a pointer array in struct exynos_drm_private.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1483961145-18453-2-git-send-email-shawnguo@kernel.org
2017-01-18 08:56:59 -05:00
Andrzej Hajda
821b40b79d drm/exynos/decon5433: set STANDALONE_UPDATE_F also if planes are disabled
STANDALONE_UPDATE_F should be set if something changed in plane configurations,
including plane disable.
The patch fixes page-faults bugs, caused by decon still using framebuffers
of disabled planes.

v2: fixed clear-bit code (Thx Marek)
v3: use test_and_clear_bit (Thx Joonyoung)

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Tested-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2017-01-13 18:22:51 +09:00
Andrzej Hajda
f65a7c9cb3 drm/exynos/decon5433: update shadow registers iff there are active windows
Improper usage of DECON_UPDATE register leads to subtle errors.
If it set in decon_commit when there are no active windows it results
in slow registry updates - all subsequent shadow registry updates takes more
than full vblank. On the other side if it is not set when there are
active windows it results in garbage on the screen after suspend/resume of
FB console.

The patch hopefully fixes it.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2017-01-13 18:01:20 +09:00
Bhumika Goyal
fc36ec76f3 drm/exynos: constify exynos_drm_crtc_ops structures
Declare exynos_drm_crtc_ops structures as const as they are only passed
as an argument to the function exynos_drm_crtc_create. This argument is
of type const struct exynos_drm_crtc_ops *, so exynos_drm_crtc_ops
structures having this property can be declared const.
Done using Coccinelle:

@r disable optional_qualifier@
identifier i;
position p;
@@
static struct exynos_drm_crtc_ops i@p={...};

@ok@
position p;
identifier r.i;
@@
exynos_drm_crtc_create(...,&i@p,...)

@bad@
position p!={r.p,ok.p};
identifier r.i;
@@
i@p

@depends on !bad disable optional_qualifier@
identifier r.i;
@@
+const
struct exynos_drm_crtc_ops i;

File size before:
   text	   data	    bss	    dec	    hex	filename
   5008	    280	      0	   5288	   14a8	exynos/exynos5433_drm_decon.o

File size after:
   text	   data	    bss	    dec	    hex	filename
   5120	    176	      0	   5296	   14b0 exynos/exynos5433_drm_decon.o

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1483984493-25284-1-git-send-email-bhumirks@gmail.com
2017-01-10 11:18:16 +01:00
Dave Airlie
282d0a35c8 Merge tag 'drm-misc-next-2017-01-09' of git://anongit.freedesktop.org/git/drm-misc into drm-next
Back to regular -misc pulls with reasonable sizes:
- dma_fence error clarification (Chris)
- drm_crtc_from_index helper (Shawn), pile more patches on the m-l to roll
  this out to drivers
- mmu-less support for fbdev helpers from Benjamin
- piles of kerneldoc work
- some polish for crc support from Tomeu and Benjamin
- odd misc stuff all over

* tag 'drm-misc-next-2017-01-09' of git://anongit.freedesktop.org/git/drm-misc: (48 commits)
  dma-fence: Introduce drm_fence_set_error() helper
  dma-fence: Wrap querying the fence->status
  dma-fence: Clear fence->status during dma_fence_init()
  drm: fix compilations issues introduced by "drm: allow to use mmuless SoC"
  drm: Change the return type of the unload hook to void
  drm: add more document for drm_crtc_from_index()
  drm: remove useless parameters from drm_pick_cmdline_mode function
  drm: crc: Call wake_up_interruptible() each time there is a new CRC entry
  drm: allow to use mmuless SoC
  drm: compile drm_vm.c only when needed
  fbmem: add a default get_fb_unmapped_area function
  drm: crc: Wait for a frame before returning from open()
  drm: Move locking into drm_debugfs_crtc_crc_add
  drm/imx: imx-tve: Remove unused variable
  Revert "drm: nouveau: fix build when LEDS_CLASS=m"
  drm: Add kernel-doc for drm_crtc_commit_get/put
  drm/atomic: Fix outdated comment.
  drm: reference count event->completion
  gpu: drm: mgag200: mgag200_main:- Handle error from pci_iomap
  drm: Document deprecated load/unload hook
  ...
2017-01-10 08:06:56 +10:00
Gabriel Krisman Bertazi
11b3c20bdd drm: Change the return type of the unload hook to void
The integer returned by the unload hook is ignored by the drm core, so
let's make it void.

This patch was created using the following Coccinelle semantic script
(except for the declaration and comment in drm_drv.h):

Compile-tested only.

// <smpl>
@ get_name @
struct drm_driver drv;
identifier fn;
@@
drv.unload = fn;

@ replace_type @
identifier get_name.fn;
@@
- int
+ void
fn (...)
{
...
}

@ remove_return_param @
identifier get_name.fn;
@@
void fn (...)
{
<...
if (...)
return
- ...
;
...>
 }

@ drop_final_return @
identifier get_name.fn;
@@
void fn (...)
{
...

- return 0;
}
// </smpl>

Suggested-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Acked-by: Christian König <christian.koenig@amd.com>.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170106175731.29196-1-krisman@collabora.co.uk
2017-01-09 11:25:22 +01:00
Dave Airlie
3806a271bf Merge tag 'drm-misc-next-2016-12-30' of git://anongit.freedesktop.org/git/drm-misc into drm-next
First -misc pull for 4.11:
- drm_mm rework + lots of selftests (Chris Wilson)
- new connector_list locking+iterators
- plenty of kerneldoc updates
- format handling rework from Ville
- atomic helper changes from Maarten for better plane corner-case handling
  in drivers, plus the i915 legacy cursor patch that needs this
- bridge cleanup from Laurent
- plus plenty of small stuff all over
- also contains a merge of the 4.10 docs tree so that we could apply the
  dma-buf kerneldoc patches

It's a lot more than usual, but due to the merge window blackout it also
covers about 4 weeks, so all in line again on a per-week basis. The more
annoying part with no pull request for 4 weeks is managing cross-tree
work. The -intel pull request I'll follow up with does conflict quite a
bit with -misc here. Longer-term (if drm-misc keeps growing) a
drm-next-queued to accept pull request for the next merge window during
this time might be useful.

I'd also like to backmerge -rc2+this into drm-intel next week, we have
quite a pile of patches waiting for the stuff in here.

* tag 'drm-misc-next-2016-12-30' of git://anongit.freedesktop.org/git/drm-misc: (126 commits)
  drm: Add kerneldoc markup for new @scan parameters in drm_mm
  drm/mm: Document locking rules
  drm: Use drm_mm_insert_node_in_range_generic() for everyone
  drm: Apply range restriction after color adjustment when allocation
  drm: Wrap drm_mm_node.hole_follows
  drm: Apply tight eviction scanning to color_adjust
  drm: Simplify drm_mm scan-list manipulation
  drm: Optimise power-of-two alignments in drm_mm_scan_add_block()
  drm: Compute tight evictions for drm_mm_scan
  drm: Fix application of color vs range restriction when scanning drm_mm
  drm: Unconditionally do the range check in drm_mm_scan_add_block()
  drm: Rename prev_node to hole in drm_mm_scan_add_block()
  drm: Fix O= out-of-tree builds for selftests
  drm: Extract struct drm_mm_scan from struct drm_mm
  drm: Add asserts to catch overflow in drm_mm_init() and drm_mm_init_scan()
  drm: Simplify drm_mm_clean()
  drm: Detect overflow in drm_mm_reserve_node()
  drm: Fix kerneldoc for drm_mm_scan_remove_block()
  drm: Promote drm_mm alignment to u64
  drm: kselftest for drm_mm and restricted color eviction
  ...
2017-01-09 09:55:57 +10:00
Laurent Pinchart
3bb80f2495 drm: bridge: Link encoder and bridge in core code
Instead of linking encoders and bridges in every driver (and getting it
wrong half of the time, as many drivers forget to set the drm_bridge
encoder pointer), do so in core code. The drm_bridge_attach() function
needs the encoder and optional previous bridge to perform that task,
update all the callers.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Stefan Agner <stefan@agner.ch> # For DCU
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> # For atmel-hlcdc
Acked-by: Vincent Abriou <vincent.abriou@st.com> # For STI
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> # For sun4i
Acked-by: Xinliang Liu <z.liuxinliang@hisilicon.com> # For hisilicon
Acked-by: Jyri Sarha <jsarha@ti.com> # For tilcdc
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1481709550-29226-4-git-send-email-laurent.pinchart+renesas@ideasonboard.com
2016-12-18 16:31:45 +05:30
Ville Syrjälä
438b74a549 drm: Nuke fb->pixel_format
Replace uses of fb->pixel_format with fb->format->format.
Less duplicated information is a good thing.

Note that coccinelle failed to eliminate the
"/* fourcc format */" comment from drm_framebuffer.h, so I had
to do that part manually.

@@
struct drm_framebuffer *FB;
expression E;
@@
 drm_helper_mode_fill_fb_struct(...) {
	...
-	FB->pixel_format = E;
	...
 }

@@
struct drm_framebuffer *FB;
expression E;
@@
 i9xx_get_initial_plane_config(...) {
	...
-	FB->pixel_format = E;
	...
 }

@@
struct drm_framebuffer *FB;
expression E;
@@
 ironlake_get_initial_plane_config(...) {
	...
-	FB->pixel_format = E;
	...
 }

@@
struct drm_framebuffer *FB;
expression E;
@@
 skylake_get_initial_plane_config(...) {
	...
-	FB->pixel_format = E;
	...
 }

@@
struct drm_framebuffer *a;
struct drm_framebuffer b;
@@
(
- a->pixel_format
+ a->format->format
|
- b.pixel_format
+ b.format->format
)

@@
struct drm_plane_state *a;
struct drm_plane_state b;
@@
(
- a->fb->pixel_format
+ a->fb->format->format
|
- b.fb->pixel_format
+ b.fb->format->format
)

@@
struct drm_crtc *CRTC;
@@
(
- CRTC->primary->fb->pixel_format
+ CRTC->primary->fb->format->format
|
- CRTC->primary->state->fb->pixel_format
+ CRTC->primary->state->fb->format->format
)

@@
struct drm_mode_set *set;
@@
(
- set->fb->pixel_format
+ set->fb->format->format
|
- set->crtc->primary->fb->pixel_format
+ set->crtc->primary->fb->format->format
)

@@
@@
 struct drm_framebuffer {
	 ...
-	 uint32_t pixel_format;
	 ...
 };

v2: Fix commit message (Laurent)
    Rebase due to earlier removal of many fb->pixel_format uses,
    including the 'fb->format = drm_format_info(fb->format->format);'
    snafu
v3: Adjusted the semantic patch a bit and regenerated due to code
    changes

Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com> (v1)
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1481751175-18463-1-git-send-email-ville.syrjala@linux.intel.com
2016-12-15 14:55:34 +02:00
Ville Syrjälä
272725c7db drm: Nuke fb->bits_per_pixel
Replace uses of fb->bits_per_pixel with fb->format->cpp[0]*8.
Less duplicated information is a good thing.

Note that I didn't put parens around the cpp*8 in the below cocci script,
on account of not wanting spurious parens all over the place. Instead I
did the unsafe way, and tried to look over the entire diff to spot if
any dangerous expressions were produced. I didn't see any.

There are some cases where previously the code did X*bpp/8, so the
division happened after the multiplication. Those are now just X*cpp
so the division effectively happens before the multiplication,
but that is perfectly fine since bpp is always a multiple of 8.

@@
struct drm_framebuffer *FB;
expression E;
@@
 drm_helper_mode_fill_fb_struct(...) {
	...
-	FB->bits_per_pixel = E;
	...
 }

@@
struct drm_framebuffer *FB;
expression E;
@@
 i9xx_get_initial_plane_config(...) {
	...
-	FB->bits_per_pixel = E;
	...
 }

@@
struct drm_framebuffer *FB;
expression E;
@@
 ironlake_get_initial_plane_config(...) {
	...
-	FB->bits_per_pixel = E;
	...
 }

@@
struct drm_framebuffer *FB;
expression E;
@@
 skylake_get_initial_plane_config(...) {
	...
-	FB->bits_per_pixel = E;
	...
 }

@@
struct drm_framebuffer FB;
expression E;
@@
(
- E * FB.bits_per_pixel / 8
+ E * FB.format->cpp[0]
|
- FB.bits_per_pixel / 8
+ FB.format->cpp[0]
|
- E * FB.bits_per_pixel >> 3
+ E * FB.format->cpp[0]
|
- FB.bits_per_pixel >> 3
+ FB.format->cpp[0]
|
- (FB.bits_per_pixel + 7) / 8
+ FB.format->cpp[0]
|
- FB.bits_per_pixel
+ FB.format->cpp[0] * 8
|
- FB.format->cpp[0] * 8 != 8
+ FB.format->cpp[0] != 1
)

@@
struct drm_framebuffer *FB;
expression E;
@@
(
- E * FB->bits_per_pixel / 8
+ E * FB->format->cpp[0]
|
- FB->bits_per_pixel / 8
+ FB->format->cpp[0]
|
- E * FB->bits_per_pixel >> 3
+ E * FB->format->cpp[0]
|
- FB->bits_per_pixel >> 3
+ FB->format->cpp[0]
|
- (FB->bits_per_pixel + 7) / 8
+ FB->format->cpp[0]
|
- FB->bits_per_pixel
+ FB->format->cpp[0] * 8
|
- FB->format->cpp[0] * 8 != 8
+ FB->format->cpp[0] != 1
)

@@
struct drm_plane_state *state;
expression E;
@@
(
- E * state->fb->bits_per_pixel / 8
+ E * state->fb->format->cpp[0]
|
- state->fb->bits_per_pixel / 8
+ state->fb->format->cpp[0]
|
- E * state->fb->bits_per_pixel >> 3
+ E * state->fb->format->cpp[0]
|
- state->fb->bits_per_pixel >> 3
+ state->fb->format->cpp[0]
|
- (state->fb->bits_per_pixel + 7) / 8
+ state->fb->format->cpp[0]
|
- state->fb->bits_per_pixel
+ state->fb->format->cpp[0] * 8
|
- state->fb->format->cpp[0] * 8 != 8
+ state->fb->format->cpp[0] != 1
)

@@
@@
- (8 * 8)
+ 8 * 8

@@
struct drm_framebuffer FB;
@@
- (FB.format->cpp[0])
+ FB.format->cpp[0]

@@
struct drm_framebuffer *FB;
@@
- (FB->format->cpp[0])
+ FB->format->cpp[0]

@@
@@
 struct drm_framebuffer {
	 ...
-	 int bits_per_pixel;
	 ...
 };

v2: Clean up the 'cpp*8 != 8' and '(8 * 8)' cases (Laurent)
v3: Adjusted the semantic patch a bit and regenerated due to code
    changes

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com> (v1)
Link: http://patchwork.freedesktop.org/patch/msgid/1481751140-18352-1-git-send-email-ville.syrjala@linux.intel.com
2016-12-15 14:55:34 +02:00
Ville Syrjälä
b00c600e91 drm: Nuke fb->depth
Replace uses of fb->depth with fb->format->depth. Less duplicate
information is a good thing.

@@
struct drm_framebuffer *fb;
expression E;
@@
 drm_helper_mode_fill_fb_struct(...) {
	...
-	fb->depth = E;
	...
 }

@@
struct nouveau_framebuffer *fb;
@@
- fb->base.depth
+ fb->base.format->depth

@@
struct drm_framebuffer fb;
@@
- fb.depth
+ fb.format->depth

@@
struct drm_framebuffer *fb;
@@
- fb->depth
+ fb->format->depth

@@
struct drm_framebuffer fb;
@@
- (fb.format->depth)
+ fb.format->depth

@@
struct drm_framebuffer *fb;
@@
- (fb->format->depth)
+ fb->format->depth

@@
@@
 struct drm_framebuffer {
	 ...
-	 unsigned int depth;
	 ...
 };

v2: Drop the vmw stuff (Daniel)
    Rerun spatch due to code changes

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1481751095-18249-1-git-send-email-ville.syrjala@linux.intel.com
2016-12-15 14:55:33 +02:00
Ville Syrjälä
a3f913ca98 drm: Pass 'dev' to drm_helper_mode_fill_fb_struct()
Pass the drm_device to drm_helper_mode_fill_fb_struct() so that we can
populate fb->dev early. Will make it easier to use the fb before we
register it.

@@
identifier fb, mode_cmd;
@@
 void drm_helper_mode_fill_fb_struct(
+				     struct drm_device *dev,
				     struct drm_framebuffer *fb,
				     const struct drm_mode_fb_cmd2 *mode_cmd
				     );

@@
identifier fb, mode_cmd;
@@
 void drm_helper_mode_fill_fb_struct(
+				     struct drm_device *dev,
				     struct drm_framebuffer *fb,
				     const struct drm_mode_fb_cmd2 *mode_cmd
				     )
{ ... }

@@
function func;
identifier dev;
expression E1, E2;
@@
func(struct drm_device *dev, ...)
{
 ...
 drm_helper_mode_fill_fb_struct(
+				dev,
				E1, E2);
 ...
}

@@
expression E1, E2;
@@
 drm_helper_mode_fill_fb_struct(
+				dev,
				E1, E2);

v2: Rerun spatch due to code changes

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1481748539-18283-1-git-send-email-ville.syrjala@linux.intel.com
2016-12-15 14:03:30 +02:00
Jan Kara
1a29d85eb0 mm: use vmf->address instead of of vmf->virtual_address
Every single user of vmf->virtual_address typed that entry to unsigned
long before doing anything with it so the type of virtual_address does
not really provide us any additional safety.  Just use masked
vmf->address which already has the appropriate type.

Link: http://lkml.kernel.org/r/1479460644-25076-3-git-send-email-jack@suse.cz
Signed-off-by: Jan Kara <jack@suse.cz>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-14 16:04:09 -08:00
Javier Martinez Canillas
4e77524926 drm/exynos: Use VIDEO_SAMSUNG_EXYNOS_GSC=n as GSC Kconfig dependency
Commit aeefb36832 ("drm/exynos: gsc: add device tree support and remove
usage of static mappings") made the DRM_EXYNOS_GSC Kconfig symbol to only
be selectable if the exynos-gsc V4L2 driver isn't enabled, since both use
the same HW IP block.

But added the dependency as depends on !VIDEO_SAMSUNG_EXYNOS_GSC which is
not correct since Kconfig expressions are not boolean but tristate. So it
will only evaluate to 'n' if VIDEO_SAMSUNG_EXYNOS_GSC=y but will evaluate
to 'm' if VIDEO_SAMSUNG_EXYNOS_GSC=m.

This means that both the V4L2 and DRM drivers can be enabled if the former
is enabled as a module, which isn't what we want since otherwise 2 drivers
could attempt to use the hardware at the same time.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-12-05 22:08:59 +09:00
Colin Ian King
1bb399360f drm/exynos: gsc: fix spelling mistakes
Trivial fixes to spelling mistakes "precalser" to "prescaler"
in dev_err messages

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-12-05 22:08:58 +09:00
Shuah Khan
63eb0a12d1 exynos-drm: Fix error messages to print flags and size
Fix exynos_drm_gem_create() error messages to include flags and size when
flags and size are invalid.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-12-05 22:08:58 +09:00
Andrzej Hajda
5f9e228d1c drm/exynos/hdmi: refactor infoframe code
Use core helpers to generate infoframes and generate vendor frame if necessary.

Changelog:
- changed 'ret >= 0' checks to '!ret'

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-12-05 22:08:58 +09:00
Dave Airlie
f03ee46be9 Linux 4.9-rc8
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Backmerge tag 'v4.9-rc8' into drm-next

Linux 4.9-rc8

Daniel requested this so we could apply some follow on fixes cleanly to -next.
2016-12-05 17:11:48 +10:00
Arvind Yadav
d742000240 gpu/drm/exynos/exynos_hdmi - Unmap region obtained by of_iomap
Free memory mapping, if hdmi_probe is not successful.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-11-25 09:57:51 +10:00
Stefan Christ
2eec838cf4 drm/exynos: use DRM_FB_HELPER_DEFAULT_OPS for fb_ops
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Joonyoung Shim <jy0922.shim@samsung.com>
Cc: Seung-Woo Kim <sw0312.kim@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Stefan Christ <contact@stefanchrist.eu>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1479078208-25221-8-git-send-email-contact@stefanchrist.eu
2016-11-14 07:54:50 +01:00
Dave Airlie
3e91168a6a Merge tag 'topic/drm-misc-2016-11-10' of git://anongit.freedesktop.org/drm-intel into drm-next
- better atomic state debugging from Rob
- fence prep from gustavo
- sumits flushed out his backlog of pending dma-buf/fence patches from
  various people
- drm_mm leak debugging plus trying to appease Kconfig (Chris)
- a few misc things all over

* tag 'topic/drm-misc-2016-11-10' of git://anongit.freedesktop.org/drm-intel: (35 commits)
  drm: Make DRM_DEBUG_MM depend on STACKTRACE_SUPPORT
  drm/i915: Restrict DRM_DEBUG_MM automatic selection
  drm: Restrict stackdepot usage to builtin drm.ko
  drm/msm: module param to dump state on error irq
  drm/msm/mdp5: add atomic_print_state support
  drm/atomic: add debugfs file to dump out atomic state
  drm/atomic: add new drm_debug bit to dump atomic state
  drm: add helpers to go from plane state to drm_rect
  drm: add helper for printing to log or seq_file
  drm: helper macros to print composite types
  reservation: revert "wait only with non-zero timeout specified (v3)" v2
  drm/ttm: fix ttm_bo_wait
  dma-buf/fence: revert "don't wait when specified timeout is zero" (v2)
  dma-buf/fence: make timeout handling in fence_default_wait consistent (v2)
  drm/amdgpu: add the interface of waiting multiple fences (v4)
  dma-buf: return index of the first signaled fence (v2)
  MAINTAINERS: update Sync File Framework files
  dma-buf/sw_sync: put fence reference from the fence creation
  dma-buf/sw_sync: mark sync_timeline_create() static
  drm: Add stackdepot include for DRM_DEBUG_MM
  ...
2016-11-11 09:28:44 +10:00
Dave Airlie
7b624ad8fe Linux 4.9-rc4
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Backmerge tag 'v4.9-rc4' into drm-next

Linux 4.9-rc4

This is needed for nouveau development.
2016-11-07 09:37:09 +10:00
Jani Nikula
55edf41b69 drm: define drm_compat_ioctl NULL on CONFIG_COMPAT=n and reduce #ifdefs
If we define drm_compat_ioctl NULL on CONFIG_COMPAT=n, we don't have to
check for the config everywhere.

Reviewed-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1478014844-27454-1-git-send-email-jani.nikula@intel.com
2016-11-02 11:33:47 -04:00
Ville Syrjälä
38d868e41c drm: Don't force all planes to be added to the state due to zpos
We don't want all planes to be added to the state whenever a
plane with fixed zpos gets enabled/disabled. This is true
especially for eg. cursor planes on i915, as we want cursor
updates to go through w/o throttling. Same holds for drivers
that don't support zpos at all (i915 actually falls into this
category right now since we've not yet added zpos support).

Allow drivers more freedom by letting them deal with zpos
themselves instead of doing it in drm_atomic_helper_check_planes()
unconditionally. Let's just inline the required calls into all
the driver that currently depend on this.

v2: Inline the stuff into the drivers instead of adding another
    helper, document things better (Daniel)

Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Cc: Vincent Abriou <vincent.abriou@st.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Joonyoung Shim <jy0922.shim@samsung.com>
Cc: Seung-Woo Kim <sw0312.kim@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Lyude <cpaul@redhat.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: stable@vger.kernel.org
Fixes: 44d1240d00 ("drm: add generic zpos property")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Acked-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1476111056-12734-1-git-send-email-ville.syrjala@linux.intel.com
2016-10-26 18:48:05 +02:00
Dave Airlie
61d0a04d6f Merge tag 'topic/drm-misc-2016-10-24' of git://anongit.freedesktop.org/drm-intel into drm-next
First -misc pull for 4.10:
- drm_format rework from Laurent
- reservation patches from Chris that missed 4.9.
- aspect ratio support in infoframe helpers and drm mode/edid code
  (Shashank Sharma)
- rotation rework from Ville (first parts at least)
- another attempt at the CRC debugfs interface from Tomeu
- piles and piles of misc patches all over

* tag 'topic/drm-misc-2016-10-24' of git://anongit.freedesktop.org/drm-intel: (55 commits)
  drm: Use u64 for intermediate dotclock calculations
  drm/i915: Use the per-plane rotation property
  drm/omap: Use per-plane rotation property
  drm/omap: Set rotation property initial value to BIT(DRM_ROTATE_0) insted of 0
  drm/atmel-hlcdc: Use per-plane rotation property
  drm/arm: Use per-plane rotation property
  drm: Add support for optional per-plane rotation property
  drm/atomic: Reject attempts to use multiple rotation angles at once
  drm: Add drm_rotation_90_or_270()
  dma-buf/sync_file: hold reference to fence when creating sync_file
  drm/virtio: kconfig: Fixup white space.
  drm/fence: release fence reference when canceling event
  drm/i915: Handle early failure during intel_get_load_detect_pipe
  drm/fb_cma_helper: do not free fbdev if there is none
  drm: fix sparse warnings on undeclared symbols in crc debugfs
  gpu: Remove depends on RESET_CONTROLLER when not a provider
  i915: don't call drm_atomic_state_put on invalid pointer
  drm: Don't export the drm_fb_get_bpp_depth() function
  drm/arm: mali-dp: Replace drm_fb_get_bpp_depth() with drm_format_plane_cpp()
  drm: vmwgfx: Replace drm_fb_get_bpp_depth() with drm_format_info()
  ...
2016-10-25 16:35:20 +10:00
Lorenzo Stoakes
7f23b3504a mm: replace get_vaddr_frames() write/force parameters with gup_flags
This removes the 'write' and 'force' from get_vaddr_frames() and
replaces them with 'gup_flags' to make the use of FOLL_FORCE explicit in
callers as use of this flag can result in surprising behaviour (and
hence bugs) within the mm subsystem.

Signed-off-by: Lorenzo Stoakes <lstoakes@gmail.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-10-19 08:11:24 -07:00
Chris Wilson
0853695c3b drm: Add reference counting to drm_atomic_state
drm_atomic_state has a complicated single owner model that tracks the
single reference from allocation through to destruction on another
thread - or perhaps on a local error path. We can simplify this tracking
by using reference counting (at a cost of a few more atomics). This is
even more beneficial when the lifetime of the state becomes more
convoluted than being passed to a single worker thread for the commit.

v2: Double check !intel atomic_commit functions for missing gets
v3: Update kerneldocs

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161014121833.439-27-chris@chris-wilson.co.uk
2016-10-17 08:19:57 +02:00
Linus Torvalds
6b25e21fa6 Merge tag 'drm-for-v4.9' of git://people.freedesktop.org/~airlied/linux
Pull drm updates from Dave Airlie:
 "Core:
   - Fence destaging work
   - DRIVER_LEGACY to split off legacy drm drivers
   - drm_mm refactoring
   - Splitting drm_crtc.c into chunks and documenting better
   - Display info fixes
   - rbtree support for prime buffer lookup
   - Simple VGA DAC driver

  Panel:
   - Add Nexus 7 panel
   - More simple panels

  i915:
   - Refactoring GEM naming
   - Refactored vma/active tracking
   - Lockless request lookups
   - Better stolen memory support
   - FBC fixes
   - SKL watermark fixes
   - VGPU improvements
   - dma-buf fencing support
   - Better DP dongle support

  amdgpu:
   - Powerplay for Iceland asics
   - Improved GPU reset support
   - UVD/VEC powergating support for CZ/ST
   - Preinitialised VRAM buffer support
   - Virtual display support
   - Initial SI support
   - GTT rework
   - PCI shutdown callback support
   - HPD IRQ storm fixes

  amdkfd:
   - bugfixes

  tilcdc:
   - Atomic modesetting support

  mediatek:
   - AAL + GAMMA engine support
   - Hook up gamma LUT
   - Temporal dithering support

  imx:
   - Pixel clock from devicetree
   - drm bridge support for LVDS bridges
   - active plane reconfiguration
   - VDIC deinterlacer support
   - Frame synchronisation unit support
   - Color space conversion support

  analogix:
   - PSR support
   - Better panel on/off support

  rockchip:
   - rk3399 vop/crtc support
   - PSR support

  vc4:
   - Interlaced vblank timing
   - 3D rendering CPU overhead reduction
   - HDMI output fixes

  tda998x:
   - HDMI audio ASoC support

  sunxi:
   - Allwinner A33 support
   - better TCON support

  msm:
   - DT binding cleanups
   - Explicit fence-fd support

  sti:
   - remove sti415/416 support

  etnaviv:
   - MMUv2 refactoring
   - GC3000 support

  exynos:
   - Refactoring HDMI DCC/PHY
   - G2D pm regression fix
   - Page fault issues with wait for vblank

  There is no nouveau work in this tree, as Ben didn't get a pull
  request in, and he was fighting moving to atomic and adding mst
  support, so maybe best it waits for a cycle"

* tag 'drm-for-v4.9' of git://people.freedesktop.org/~airlied/linux: (1412 commits)
  drm/crtc: constify drm_crtc_index parameter
  drm/i915: Fix conflict resolution from backmerge of v4.8-rc8 to drm-next
  drm/i915/guc: Unwind GuC workqueue reservation if request construction fails
  drm/i915: Reset the breadcrumbs IRQ more carefully
  drm/i915: Force relocations via cpu if we run out of idle aperture
  drm/i915: Distinguish last emitted request from last submitted request
  drm/i915: Allow DP to work w/o EDID
  drm/i915: Move long hpd handling into the hotplug work
  drm/i915/execlists: Reinitialise context image after GPU hang
  drm/i915: Use correct index for backtracking HUNG semaphores
  drm/i915: Unalias obj->phys_handle and obj->userptr
  drm/i915: Just clear the mmiodebug before a register access
  drm/i915/gen9: only add the planes actually affected by ddb changes
  drm/i915: Allow PCH DPLL sharing regardless of DPLL_SDVO_HIGH_SPEED
  drm/i915/bxt: Fix HDMI DPLL configuration
  drm/i915/gen9: fix the watermark res_blocks value
  drm/i915/gen9: fix plane_blocks_per_line on watermarks calculations
  drm/i915/gen9: minimum scanlines for Y tile is not always 4
  drm/i915/gen9: fix the WaWmMemoryReadLatency implementation
  drm/i915/kbl: KBL also needs to run the SAGV code
  ...
2016-10-11 18:12:22 -07:00
Linus Torvalds
de34f4da7f media updates for v4.9-rc1
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Merge tag 'media/v4.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - Documentation improvements: conversion of all non-DocBook documents
   to Sphinx and lots of fixes to the uAPI media book

 - New PCI driver for Techwell TW5864 media grabber boards

 - New SoC driver for ATMEL Image Sensor Controller

 - Removal of some obsolete SoC drivers (s5p-tv driver and soc_camera
   drivers)

 - Addition of ST CEC driver

 - Lots of drivers fixes, improvements and additions

* tag 'media/v4.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (464 commits)
  [media] ttusb_dec: avoid the risk of go past buffer
  [media] cx23885: Fix some smatch warnings
  [media] si2165: switch to regmap
  [media] si2165: use i2c_client->dev instead of i2c_adapter->dev for logging
  [media] si2165: Remove legacy attach
  [media] cx231xx: attach si2165 driver via i2c_client
  [media] cx231xx: Prepare for attaching new style i2c_client DVB demod drivers
  [media] cx23885: attach si2165 driver via i2c_client
  [media] si2165: support i2c_client attach
  [media] si2165: avoid division by zero
  [media] rcar-vin: add R-Car gen2 fallback compatibility string
  [media] lgdt3306a: remove 20*50 msec unnecessary timeout
  [media] cx25821: Remove deprecated create_singlethread_workqueue
  [media] cx25821: Drop Freeing of Workqueue
  [media] cxd2841er: force 8MHz bandwidth for DVB-C if specified bw not supported
  [media] redrat3: hardware-specific parameters
  [media] redrat3: remove hw_timeout member
  [media] cxd2841er: BER and SNR reading for ISDB-T
  [media] dvb-usb: avoid link error with dib3000m{b,c|
  [media] dvb-usb: split out common parts of dibusb
  ...
2016-10-11 13:22:22 -07:00
Linus Torvalds
56e520c7a0 IOMMU Updates for Linux v4.9
Including:
 
 	* Support for interrupt virtualization in the AMD IOMMU driver.
 	  These patches were shared with the KVM tree and are already
 	  merged through that tree.
 
 	* Generic DT-binding support for the ARM-SMMU driver. With this
 	  the driver now makes use of the generic DMA-API code. This
 	  also required some changes outside of the IOMMU code, but
 	  these are acked by the respective maintainers.
 
 	* More cleanups and fixes all over the place.
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Merge tag 'iommu-updates-v4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull IOMMU updates from Joerg Roedel:

 - support for interrupt virtualization in the AMD IOMMU driver. These
   patches were shared with the KVM tree and are already merged through
   that tree.

 - generic DT-binding support for the ARM-SMMU driver. With this the
   driver now makes use of the generic DMA-API code. This also required
   some changes outside of the IOMMU code, but these are acked by the
   respective maintainers.

 - more cleanups and fixes all over the place.

* tag 'iommu-updates-v4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (40 commits)
  iommu/amd: No need to wait iommu completion if no dte irq entry change
  iommu/amd: Free domain id when free a domain of struct dma_ops_domain
  iommu/amd: Use standard bitmap operation to set bitmap
  iommu/amd: Clean up the cmpxchg64 invocation
  iommu/io-pgtable-arm: Check for v7s-incapable systems
  iommu/dma: Avoid PCI host bridge windows
  iommu/dma: Add support for mapping MSIs
  iommu/arm-smmu: Set domain geometry
  iommu/arm-smmu: Wire up generic configuration support
  Docs: dt: document ARM SMMU generic binding usage
  iommu/arm-smmu: Convert to iommu_fwspec
  iommu/arm-smmu: Intelligent SMR allocation
  iommu/arm-smmu: Add a stream map entry iterator
  iommu/arm-smmu: Streamline SMMU data lookups
  iommu/arm-smmu: Refactor mmu-masters handling
  iommu/arm-smmu: Keep track of S2CR state
  iommu/arm-smmu: Consolidate stream map entry state
  iommu/arm-smmu: Handle stream IDs more dynamically
  iommu/arm-smmu: Set PRIVCFG in stage 1 STEs
  iommu/arm-smmu: Support non-PCI devices with SMMUv3
  ...
2016-10-11 12:52:41 -07:00
Mauro Carvalho Chehab
9fce0c2265 Linux 4.8
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Merge tag 'v4.8' into patchwork

Linux 4.8

* tag 'v4.8': (1761 commits)
  Linux 4.8
  ARM: 8618/1: decompressor: reset ttbcr fields to use TTBR0 on ARMv7
  MIPS: CM: Fix mips_cm_max_vp_width for non-MT kernels on MT systems
  include/linux/property.h: fix typo/compile error
  ocfs2: fix deadlock on mmapped page in ocfs2_write_begin_nolock()
  mm: workingset: fix crash in shadow node shrinker caused by replace_page_cache_page()
  MAINTAINERS: Switch to kernel.org email address for Javi Merino
  x86/entry/64: Fix context tracking state warning when load_gs_index fails
  x86/boot: Initialize FPU and X86_FEATURE_ALWAYS even if we don't have CPUID
  x86/vdso: Fix building on big endian host
  x86/boot: Fix another __read_cr4() case on 486
  sctp: fix the issue sctp_diag uses lock_sock in rcu_read_lock
  sctp: change to check peer prsctp_capable when using prsctp polices
  sctp: remove prsctp_param from sctp_chunk
  sctp: move sent_count to the memory hole in sctp_chunk
  tg3: Avoid NULL pointer dereference in tg3_io_error_detected()
  x86/init: Fix cr4_init_shadow() on CR4-less machines
  MIPS: Fix detection of unsupported highmem with cache aliases
  MIPS: Malta: Fix IOCU disable switch read for MIPS64
  MIPS: Fix BUILD_ROLLBACK_PROLOGUE for microMIPS
  ...
2016-10-05 16:43:53 -03:00
Tobias Jakobi
c046279646 drm/exynos: g2d: simplify g2d_free_runqueue_node()
The function is never called with zero 'runqueue_node'.

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-10-01 00:39:42 +09:00
Tobias Jakobi
7c3fc2b5cc drm/exynos: g2d: use autosuspend mode for PM runtime
The runqueue worker currently issues a get() when a new
node is processed, and a put() once a node is completed.

The corresponding suspend and resume calls currently only
do clock gating, but with the upcoming introduction of
IOMMU runpm also the corresponding IOMMU domain gets
enabled (for get()) and disabled (for put()). This
introduces performance regressions with we mitigate here.

Switch PM runtime to autosuspend, such that clock gating
and IOMMU control only happens when the engine is idle for
a 'long' time.

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-10-01 00:39:41 +09:00
Tobias Jakobi
134a0fe984 drm/exynos: g2d: wait for engine to finish
While the engine works on a runqueue node it does memory access to
the buffers associated with that node.
Make sure that the engine is idle when g2d_close() and/or
g2d_remove() are called, i.e. buffer associated with the process (for
g2d_close()), or all buffers (for g2d_remove()) can be safely be
unmapped.

We have to take into account that the engine might be in an undefined
state, i.e. it hangs and doesn't become idle. In this case, we issue
a hardware reset to return the hardware and the driver context into a
proper state.

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-10-01 00:39:40 +09:00
Tobias Jakobi
5332737432 drm/exynos: g2d: remove runqueue nodes in g2d_{close,remove}()
The driver might be closed (and/or removed) while there are still
nodes queued for processing.
Make sure to remove these nodes, which means all of them in
the case of g2d_remove() and only those belonging to the
corresponding process in g2d_close().

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-10-01 00:39:39 +09:00
Tobias Jakobi
22d6704dd4 drm/exynos: g2d: move PM management to runqueue worker
Do all pm_runtime_{get,put}() calls in the runqueue worker.
Also keep track of the engine's idle/busy state.

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-10-01 00:39:39 +09:00
Tobias Jakobi
05e2e4666c Revert "drm/exynos: g2d: fix system and runtime pm integration"
This reverts commit b05984e21a.

The change, i.e. merging the sleep and runpm operations, produces
a deadlock situation:
(1) exynos_g2d_exec_ioctl() prepares a runqueue node and
    calls g2d_exec_runqueue()
(2) g2d_exec_runqueue() calls g2d_dma_start() which gets
    runtime PM sync
(3) runtime PM core calls g2d_runtime_resume()
(4) g2d_runtime_resume() calls g2d_exec_runqueue(), which
    loops back to (2)

Due to mutexes that are in place, a deadlock situation is created.

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-10-01 00:39:38 +09:00
Andrzej Hajda
9276dff7a8 drm/exynos: use drm core to handle page-flip event
Exynos DRM framework handled page-flip event with custom code.
The patch replaces it with drm-core vblank queue.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-10-01 00:39:37 +09:00
Baoyou Xie
d42c09628a drm/exynos: mark exynos_dp_crtc_clock_enable() static
We get 1 warning when building kernel with W=1:
drivers/gpu/drm/exynos/exynos_dp.c:46:5: warning: no previous prototype for 'exynos_dp_crtc_clock_enable' [-Wmissing-prototypes]

In fact, this function is only used in the file in which it is
declared and don't need a declaration, but can be made static.
So this patch marks it 'static'.

Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-10-01 00:39:37 +09:00
Andrzej Hajda
c96fdfdeca drm/exynos/fimd: add clock rate checking
In case of some platforms fimd clocks can be configured to
very low values, as a result refresh rate can be very low and
driver/drm-core will timeout waiting for vblanks, it will result
in premature removal of framebuffers and will cause oopses.
The patch adds atomic_check callback to fimd to prevent setting
such modes.

Reported-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-10-01 00:39:36 +09:00
Andrzej Hajda
14e022f304 drm/exynos: fix pending update handling
Exynos DRM devices update their registers at vblank time. Exynos-DRM uses
custom mechanism to wait for vblank. This mechanism is error prone -
variables are not updated atomically. As a result in certain circumstances
user space can try to free buffers which are still in use by hardware,
in such cases IOMMU can throw OOPS.
The patch instead of fixing the mechanism replaces it with drm core helper.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-10-01 00:39:35 +09:00
Andrzej Hajda
8574e927b4 drm/exynos/vidi: use timer for vblanks instead of sleeping worker
VIDI driver uses fake vblank handler to generate vblank events.
It was implemented using worker which slept for vblank time, additionally
it did not work if there were no page flips. The patch replaces it with
timer, uses drm_crtc_vblank_(on|off) helpers to manage it and fixes
behavior for non-page-flip cases.
This change allows further improvements of vblank in exynos-drm framework.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-10-01 00:39:35 +09:00
Tobias Jakobi
61865b5d4d drm/exynos: g2d: beautify probing message
Apply some 'make-up' in g2d_probe().

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-10-01 00:39:34 +09:00
Tobias Jakobi
a696394c52 drm/exynos: mixer: simplify loop in vp_win_reset()
A simple while loop should do the same here.

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-10-01 00:39:33 +09:00
Tobias Jakobi
adeb6f4485 drm/exynos: mixer: convert booleans to flags in mixer context
The mixer context struct already has a 'flags' field, so
we can use it to store the 'interlace', 'vp_enabled' and
'has_sclk' booleans.
We use the non-atomic helper functions to access these bits.

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-10-01 00:39:33 +09:00
Milo Kim
c0d656dd2d gpu: drm: exynos_hdmi: Remove duplicate initialization of regulator bulk consumer
The helper, devm_regulator_bulk_get() initializes the consumer as NULL,
so this code can be ignored.

Signed-off-by: Milo Kim <woogyom.kim@gmail.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-10-01 00:39:32 +09:00
Milo Kim
b5413022fd gpu: drm: exynos_hdmi: Move PHY logic into single function
Paring DT properties and getting PHY IO (memory mapped or I2C) in one
function.

Signed-off-by: Milo Kim <woogyom.kim@gmail.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-10-01 00:39:31 +09:00
Milo Kim
1caa360ed9 gpu: drm: exynos_hdmi: Move DDC logic into single function
Paring DT properties and getting the I2C adapter in one function.

Signed-off-by: Milo Kim <woogyom.kim@gmail.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-10-01 00:39:31 +09:00
Dave Airlie
ca09fb9f60 Linux 4.8-rc8
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Merge tag 'v4.8-rc8' into drm-next

Linux 4.8-rc8

There was a lot of fallout in the imx/amdgpu/i915 drivers, so backmerge
it now to avoid troubles.

* tag 'v4.8-rc8': (1442 commits)
  Linux 4.8-rc8
  fault_in_multipages_readable() throws set-but-unused error
  mm: check VMA flags to avoid invalid PROT_NONE NUMA balancing
  radix tree: fix sibling entry handling in radix_tree_descend()
  radix tree test suite: Test radix_tree_replace_slot() for multiorder entries
  fix memory leaks in tracing_buffers_splice_read()
  tracing: Move mutex to protect against resetting of seq data
  MIPS: Fix delay slot emulation count in debugfs
  MIPS: SMP: Fix possibility of deadlock when bringing CPUs online
  mm: delete unnecessary and unsafe init_tlb_ubc()
  huge tmpfs: fix Committed_AS leak
  shmem: fix tmpfs to handle the huge= option properly
  blk-mq: skip unmapped queues in blk_mq_alloc_request_hctx
  MIPS: Fix pre-r6 emulation FPU initialisation
  arm64: kgdb: handle read-only text / modules
  arm64: Call numa_store_cpu_info() earlier.
  locking/hung_task: Fix typo in CONFIG_DETECT_HUNG_TASK help text
  nvme-rdma: only clear queue flags after successful connect
  i2c: qup: skip qup_i2c_suspend if the device is already runtime suspended
  perf/core: Limit matching exclusive events to one PMU
  ...
2016-09-28 12:08:49 +10:00
Arnd Bergmann
4158dbe1be Subject: [PATCH, RESEND] drm: exynos: avoid unused function warning
When CONFIG_PM is not set, we get a warning about an unused function:

drivers/gpu/drm/exynos/exynos_drm_gsc.c:1219:12: error: 'gsc_clk_ctrl' defined but not used [-Werror=unused-function]
 static int gsc_clk_ctrl(struct gsc_context *ctx, bool enable)
            ^~~~~~~~~~~~

This removes the two #ifdef checks in this file and instead marks the
functions as __maybe_unused, which is a more reliable way of doing the
same, allowing better build coverage and avoiding the warning above.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-09-19 10:07:26 +09:00
Marek Szyprowski
b05984e21a drm/exynos: g2d: fix system and runtime pm integration
Move code from system sleep pm to runtime pm callbacks to ensure proper
driver state preservation when device is under power domain. Then, use
generic helpers for using runtime pm for system sleep pm.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-09-18 22:20:39 +09:00
Marek Szyprowski
5b67723e60 drm/exynos: rotator: fix system and runtime pm integration
Use generic helpers instead of open-coding usage of runtime pm for system
sleep pm, which was potentially broken for some corner cases.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-09-18 22:20:38 +09:00
Marek Szyprowski
83bd7b20aa drm/exynos: gsc: fix system and runtime pm integration
Use generic helpers instead of open-coding usage of runtime pm for system
sleep pm, which was potentially broken for some corner cases.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-09-18 22:20:37 +09:00
Marek Szyprowski
479f125454 drm/exynos: fimc: fix system and runtime pm integration
Use generic helpers instead of open-coding usage of runtime pm for system
sleep pm, which was potentially broken for some corner cases.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-09-18 22:20:37 +09:00
Shuah Khan
6244bd6512 exynos-drm: Fix unsupported GEM memory type error message to be clear
Fix unsupported GEM memory type error message to include the memory type
information.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-09-18 22:20:36 +09:00
Robin Murphy
fade1ec055 iommu/dma: Avoid PCI host bridge windows
With our DMA ops enabled for PCI devices, we should avoid allocating
IOVAs which a host bridge might misinterpret as peer-to-peer DMA and
lead to faults, corruption or other badness. To be safe, punch out holes
for all of the relevant host bridge's windows when initialising a DMA
domain for a PCI device.

CC: Marek Szyprowski <m.szyprowski@samsung.com>
CC: Inki Dae <inki.dae@samsung.com>
Reported-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2016-09-16 09:34:22 +01:00
Liu Ying
2b58e98d42 drm/atomic-helper: Add NO_DISABLE_AFTER_MODESET flag support for plane commit
Drivers may set the NO_DISABLE_AFTER_MODESET flag in the 'flags' parameter
of the helper drm_atomic_helper_commit_planes() if the relevant display
controllers(e.g., IPUv3 for imx-drm) require to disable a CRTC's planes
when the CRTC is disabled. The helper would skip the ->atomic_disable
call for a plane if the CRTC of the old plane state needs a modesetting
operation. Of course, the drivers need to disable the planes in their CRTC
disable callbacks since no one else would do that.

Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Peter Senna Tschudin <peter.senna@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1472461923-14364-1-git-send-email-gnuiyl@gmail.com
2016-08-29 11:29:37 +02:00
Hans Verkuil
d0d44516f8 [media] s5p-tv: remove obsolete driver
The s5p-tv driver has been replaced by the exynos drm driver for quite a
long time now. Remove this driver to avoid having duplicate drivers,
of which this one is considered dead code by Samsung.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-08-24 06:35:52 -03:00
Linus Torvalds
635a4ba111 Merge tag 'drm-for-v4.8-zpos' of git://people.freedesktop.org/~airlied/linux
Pull drm zpos property support from Dave Airlie:
 "This tree was waiting on some media stuff I hadn't had time to get a
  stable branchpoint off, so I just waited until it was all in your tree
  first.

  It's been around a bit on the list and shouldn't affect anything
  outside adding the generic API and moving some ARM drivers to using
  it"

* tag 'drm-for-v4.8-zpos' of git://people.freedesktop.org/~airlied/linux:
  drm: rcar: use generic code for managing zpos plane property
  drm/exynos: use generic code for managing zpos plane property
  drm: sti: use generic zpos for plane
  drm: add generic zpos property
2016-08-07 16:35:08 -07:00
Krzysztof Kozlowski
00085f1efa dma-mapping: use unsigned long for dma_attrs
The dma-mapping core and the implementations do not change the DMA
attributes passed by pointer.  Thus the pointer can point to const data.
However the attributes do not have to be a bitfield.  Instead unsigned
long will do fine:

1. This is just simpler.  Both in terms of reading the code and setting
   attributes.  Instead of initializing local attributes on the stack
   and passing pointer to it to dma_set_attr(), just set the bits.

2. It brings safeness and checking for const correctness because the
   attributes are passed by value.

Semantic patches for this change (at least most of them):

    virtual patch
    virtual context

    @r@
    identifier f, attrs;

    @@
    f(...,
    - struct dma_attrs *attrs
    + unsigned long attrs
    , ...)
    {
    ...
    }

    @@
    identifier r.f;
    @@
    f(...,
    - NULL
    + 0
     )

and

    // Options: --all-includes
    virtual patch
    virtual context

    @r@
    identifier f, attrs;
    type t;

    @@
    t f(..., struct dma_attrs *attrs);

    @@
    identifier r.f;
    @@
    f(...,
    - NULL
    + 0
     )

Link: http://lkml.kernel.org/r/1468399300-5399-2-git-send-email-k.kozlowski@samsung.com
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Acked-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>
Acked-by: Mark Salter <msalter@redhat.com> [c6x]
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> [cris]
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> [drm]
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Acked-by: Joerg Roedel <jroedel@suse.de> [iommu]
Acked-by: Fabien Dessenne <fabien.dessenne@st.com> [bdisp]
Reviewed-by: Marek Szyprowski <m.szyprowski@samsung.com> [vb2-core]
Acked-by: David Vrabel <david.vrabel@citrix.com> [xen]
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> [xen swiotlb]
Acked-by: Joerg Roedel <jroedel@suse.de> [iommu]
Acked-by: Richard Kuo <rkuo@codeaurora.org> [hexagon]
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> [m68k]
Acked-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> [s390]
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no> [avr32]
Acked-by: Vineet Gupta <vgupta@synopsys.com> [arc]
Acked-by: Robin Murphy <robin.murphy@arm.com> [arm64 and dma-iommu]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-08-04 08:50:07 -04:00
Marek Szyprowski
e47726a11e drm/exynos: use generic code for managing zpos plane property
This patch replaces zpos property handling custom code in Exynos DRM
driver with calls to generic DRM code.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>

Cc: Inki Dae <inki.dae@samsung.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Cc: Joonyoung Shim <jy0922.shim@samsung.com>
Cc: Seung-Woo Kim <sw0312.kim@samsung.com>
Cc: Andrzej Hajda <a.hajda@samsung.com>
Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Cc: Gustavo Padovan <gustavo@padovan.org>
Cc: vincent.abriou@st.com
Cc: fabien.dessenne@st.com
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2016-07-29 10:02:58 +02:00
Markus Elfring
e8d3ef0278 GPU-DRM-Exynos: Delete an unnecessary check before the function call "vunmap"
The vunmap() function performs also input parameter validation.
Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/a5a79711-10a3-e304-a897-892ebdf2ff9f@users.sourceforge.net
2016-07-21 14:06:33 -04:00
Daniel Vetter
2383050f6a Merge remote-tracking branch 'airlied/drm-next' into topic/drm-misc
Backmerge drm-next to be able to apply Chris' connector_unregister_all
cleanup (need latest i915 and sun4i state for that).

Also there's a trivial conflict in ttm_bo.c that git rerere fails to
remember.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2016-07-19 09:27:29 +02:00
Dave Airlie
e2b80bac21 Merge branch 'upstream/analogix-dp-20160705' of git://github.com/yakir-Yang/linux into drm-next
Please consider merging this tag, which contains the v4 misc fixes and add RK3399 eDP support patches[0] I sent on 2016-06-29, rebased onto v4.7-rc5.

* 'upstream/analogix-dp-20160705' of git://github.com/yakir-Yang/linux:
  dt-bindings: analogix_dp: rockchip: correct the wrong compatible name
  drm/rockchip: analogix_dp: introduce the pclk for grf
  drm/bridge: analogix_dp: fix no drm hpd event when panel plug in
  drm/rockchip: analogix_dp: update the comments about why need to hardcode VOP output mode
  drm/rockchip: analogix_dp: correct the connector display color format and bpc
  drm/bridge: analogix_dp: passing the connector as an argument in .get_modes()
  drm/rockchip: analogix_dp: make panel detect to an optional action
  drm/rockchip: analogix_dp: add rk3399 eDP support
  drm/bridge: analogix_dp: some rockchip chips need to flip REF_CLK bit setting
  drm/bridge: analogix_dp: correct the register bit define error in ANALOGIX_DP_PLL_REG_1
  drm/rockchip: analogix_dp: split the lcdc select setting into device data
2016-07-16 11:21:50 +10:00
Peter Chen
d6a2d16bec gpu: drm: exynos_hdmi: add missing of_node_put after calling of_parse_phandle
of_node_put needs to be called when the device node which is got
from of_parse_phandle has finished using.

Cc: Joonyoung Shim <jy0922.shim@samsung.com>
Cc: Seung-Woo Kim <sw0312.kim@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
2016-07-15 08:47:01 -04:00
Dave Airlie
f82c137222 Merge branch 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next
This pull request adds to the rework patch series for IOMMU
   integration to support ARM64bit architecture with DMA-IOMMU
   glue code.

   With this patch series, Exynos DRM works well on Exynos5433 SoC
   with IOMMU enabled.

* 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
  drm/exynos: iommu: add support for ARM64 specific code for IOMMU glue
  drm/exynos: iommu: move ARM specific code to exynos_drm_iommu.h
  drm/exynos: iommu: remove unused entries from exynos_drm_private strcuture
  drm/exynos: iommu: add a check if all sub-devices have iommu controller
  drm/exynos: iommu: move dma_params configuration code to separate functions
2016-07-15 14:05:41 +10:00
Dave Airlie
6c181c8210 Merge tag 'topic/drm-misc-2016-07-14' of git://anongit.freedesktop.org/drm-intel into drm-next
I recovered dri-devel backlog from my vacation, more misc stuff:
- of_put_node fixes from Peter Chen (not all yet)
- more patches from Gustavo to use kms-native drm_crtc_vblank_* funcs
- docs sphinxification from Lukas Wunner
- bunch of fixes all over from Dan Carpenter
- more follow up work from Chris register/unregister rework in various
  places
- vgem dma-buf export (for writing testcases)
- small things all over from tons of different people

* tag 'topic/drm-misc-2016-07-14' of git://anongit.freedesktop.org/drm-intel: (52 commits)
  drm: Don't overwrite user ioctl arg unless requested
  dma-buf/sync_file: improve Kconfig description for Sync Files
  MAINTAINERS: add entry for the Sync File Framework
  drm: Resurrect atomic rmfb code
  drm/vgem: Use PAGE_KERNEL in place of x86-specific PAGE_KERNEL_IO
  qxl: silence uninitialized variable warning
  qxl: check for kmap failures
  vga_switcheroo: Sphinxify docs
  drm: Restore double clflush on the last partial cacheline
  gpu: drm: rockchip_drm_drv: add missing of_node_put after calling of_parse_phandle
  gpu: drm: sti_vtg: add missing of_node_put after calling of_parse_phandle
  gpu: drm: sti_hqvdp: add missing of_node_put after calling of_parse_phandle
  gpu: drm: sti_vdo: add missing of_node_put after calling of_parse_phandle
  gpu: drm: sti_compositor: add missing of_node_put after calling of_parse_phandle
  drm/tilcdc: use drm_crtc_handle_vblank()
  drm/rcar-du: use drm_crtc_handle_vblank()
  drm/nouveau: use drm_crtc_handle_vblank()
  drm/atmel: use drm_crtc_handle_vblank()
  drm/armada: use drm_crtc_handle_vblank()
  drm: make drm_vblank_count_and_time() static
  ...
2016-07-15 11:01:37 +10:00
Marek Szyprowski
197adf0b7e drm/exynos: iommu: add support for ARM64 specific code for IOMMU glue
This patch adds support for ARM 64bit architecture with IOMMU-DMA glue
code, so Exynos DRM can be now used on Exynos 5433 with IOMMU enabled.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-07-13 23:06:07 +09:00
Marek Szyprowski
17879a4100 drm/exynos: iommu: move ARM specific code to exynos_drm_iommu.h
This patch moves all ARM 32bit DMA-mapping/IOMMU dependant code from
exynos_drm_iommu.c to .h, to let it compile conditionally and prepare
for adding support for other architectures/IOMMU glue code (like ARM
64bit with IOMMU-DMA glue). Later, when ARM 32bit and 64bit will be
unified, this code can be removed.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-07-13 23:06:06 +09:00
Marek Szyprowski
a9abb34f44 drm/exynos: iommu: remove unused entries from exynos_drm_private strcuture
This patch removes unused entries from exynos_drm_private strcuture.
da_start/da_space_size were only used in drm_create_iommu_mapping()
function and never set to other value than the defaults. Instead use
default values directly in arm_iommu_create_mapping() call.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-07-13 23:06:05 +09:00
Marek Szyprowski
c04d9eb773 drm/exynos: iommu: add a check if all sub-devices have iommu controller
This patch adds a check if all devices belonging to Exynos DRM have the
same dma_map_ops set. This is required to enable operation with IOMMU
enabled.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-07-13 23:06:05 +09:00
Marek Szyprowski
f7c72773de drm/exynos: iommu: move dma_params configuration code to separate functions
Move code for managing DMA max segment size parameter to separate
functions. This patch also replaces devm_kzalloc() with kzalloc() and
adds proper kfree call. devm_kzalloc() cannot be used for dma_params
structure, because it will be freed on driver remove not on device
release. This means in case of Exynos DRM being compiled as module and
loaded 2 times, a user-after-free issue will happen.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-07-13 23:06:04 +09:00
Tobias Jakobi
6f4605c57d drm/exynos: make fbdev support really optional
Currently enabling Exynos DRM support automatically pulls in
lots of fbdev dependencies. However these deps are
unnecessary since DRM core already enables them when
needed.

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1466769168-31602-1-git-send-email-tjakobi@math.uni-bielefeld.de
2016-07-12 12:56:35 +02:00
Yakir Yang
fcc150c515 drm/bridge: analogix_dp: passing the connector as an argument in .get_modes()
It's better to pass the connector to platform driver in .get_modes()
callback, just like what the .get_modes() helper function designed.

Signed-off-by: Yakir Yang <ykk@rock-chips.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Tomasz Figa <tomasz.figa@chromium.com>
2016-07-05 21:53:38 +08:00
Dave Airlie
542d972221 Linux 4.7-rc5
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Back-merge tag 'v4.7-rc5' into drm-next

Linux 4.7-rc5

The fsl-dcu pull needs -rc3 so go to -rc5 for now.
2016-07-02 15:56:01 +10:00
Daniel Vetter
a325725633 drm: Lobotomize set_busid nonsense for !pci drivers
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: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2016-06-21 21:56:23 +02:00
Tobias Jakobi
41abbf5afa drm/exynos: use logical AND in exynos_drm_plane_check_size()
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>
2016-06-19 14:37:28 +09:00
Tobias Jakobi
f0fcf43f28 drm/exynos: remove superfluous inclusions of fbdev header
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>
2016-06-19 14:37:28 +09:00
Tobias Jakobi
ed4dc2718d drm/exynos: g2d: drop the _REG postfix from the stride defines
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>
2016-06-19 14:37:27 +09:00
Javier Martinez Canillas
e0d7461ceb drm/exynos: don't use HW trigger for Exynos5420/5422/5800
Commit a6f75aa161 ("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>
2016-06-19 14:37:26 +09:00
Javier Martinez Canillas
5e0b37634c drm/exynos: fimd: don't set .has_hw_trigger in s3c6400 driver data
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>
2016-06-19 14:37:25 +09:00
Yakir Yang
d90efc9ee0 drm/exynos: dp: Fix NULL pointer dereference due uninitialized connector
Commit 3424e3a4f8 ("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: 3424e3a4f8 ("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>
2016-06-19 14:37:24 +09:00
Boris Brezillon
1487a81941 drm: exynos: Rely on the default ->best_encoder() behavior
We have 1:1 relationship between connectors and encoders and the driver
is relying on the atomic helpers: we can drop the custom ->best_encoder()
implementations and let the core call drm_atomic_helper_best_encoder()
for us.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1465300095-16971-5-git-send-email-boris.brezillon@free-electrons.com
2016-06-10 17:22:15 +02:00
Daniel Vetter
5e84c2690b drm/atomic-helper: Massage swap_state signature somewhat
- dev is redundant, we have state->atomic
- add stall parameter, which must be set when swapping needs to stall
  for preceeding commits to stop looking at ->state pointers. Currently
  all drivers need this to be, just prep work for a glorious future.

v2: Rebased on top of

commit e7cf0963f8
Author: Gerd Hoffmann <kraxel@redhat.com>
Date:   Tue May 31 08:50:47 2016 +0200

    virtio-gpu: add atomic_commit function

Cc: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1465509992-19284-1-git-send-email-daniel.vetter@ffwll.ch
Link: http://patchwork.freedesktop.org/patch/msgid/1465388359-8070-2-git-send-email-daniel.vetter@ffwll.ch
2016-06-10 16:52:12 +02:00
Tobias Jakobi
39bf86092b drm/exynos: use logical AND in exynos_drm_plane_check_size()
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>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1464179407-9004-1-git-send-email-tjakobi@math.uni-bielefeld.de
2016-06-10 16:10:18 +02:00
Daniel Vetter
8e01550ec8 drm/exynos: Use for_each_crtc_in_state
We want to hide drm_atomic_state internals better.

v2: Use drm_crtc_mask (Maarten).

Cc: Inki Dae <inki.dae@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1464818821-5736-8-git-send-email-daniel.vetter@ffwll.ch
2016-06-02 15:51:45 +02:00
Daniel Vetter
fcee59065e drm: Nuke ->vblank_disable_allowed
This was added in

commit 0a3e67a4ca
Author: Jesse Barnes <jbarnes@virtuousgeek.org>
Date:   Tue Sep 30 12:14:26 2008 -0700

    drm: Rework vblank-wait handling to allow interrupt reduction.

to stay backwards-compatible with old UMS code that didn't even tell
the kernel when it did a modeset, so that the kernel could
save/restore vblank counters. At worst this means vblanks will be
somewhat funky on a setup that very likely no one still runs.

So let's just nuke it.

Plan B would be to set it unconditionally in drm_vblank_init for kms
drivers, instead of in each driver separately. So if this patch breaks
anything please only restore the hunks in drmP.h and drm_irq.c, plus
add a check for DRIVER_MODESET in drm_vblank_init.

Stumbled over this in a discussion on irc with Chris.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Eric Anholt <eric@anholt.net>
Cc: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Mark Yao <mark.yao@rock-chips.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Liviu Dudau <Liviu.Dudau@arm.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-05-21 07:03:31 +10:00
Dan Carpenter
f9628c2a8e drm/exynos/hdmi: add a missing tab
Smatch warns that the if statement isn't indented.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20160512195457.GA19095@mwanda
2016-05-17 09:10:22 +02:00
Daniel Vetter
2f701695fd drm: Drop plane argument from __drm_atomic_helper_plane_destroy_state
It's unused, and really this helper should only look at the state
structure and nothing else.

v2: Fix commit message (Laurent).

v3: Rebase onto mtk driver merge.

Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Eric Anholt <eric@anholt.net>
Cc: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Mark Yao <mark.yao@rock-chips.com>
Acked-by: Thierry Reding <thierry.reding@gmail.com>
Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1462804451-15318-2-git-send-email-daniel.vetter@ffwll.ch
2016-05-17 08:56:55 +02:00
Chris Wilson
a8ad0bd84f drm: Remove unused drm_device from drm_gem_object_lookup()
drm_gem_object_lookup() has never required the drm_device for its file
local translation of the user handle to the GEM object. Let's remove the
unused parameter and save some space.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: dri-devel@lists.freedesktop.org
Cc: Dave Airlie <airlied@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
[danvet: Fixup kerneldoc too.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-05-17 08:47:30 +02:00
Dave Airlie
99ee872950 Merge tag 'topic/drm-misc-2016-05-13' of git://anongit.freedesktop.org/drm-intel into drm-next
I kinda hoped that I could still sneak in Noralf's
drm_simple_display_pipe, since there's intereset by others now (for tilcdc
at least). But it wasn't ready by a hair. Oh well.

Otherwise random stuff plus prep patches from Noralf.

* tag 'topic/drm-misc-2016-05-13' of git://anongit.freedesktop.org/drm-intel:
  drm/atomic: Add drm_atomic_helper_best_encoder()
  drm/atomic: Don't skip drm_bridge_*() calls if !drm_encoder_helper_funcs
  drm/fb-cma-helper: Hook up to DocBook and fix some docs
  drm/fb-helper: Remove mention of CONFIG_FB_DEFERRED_IO in docs
  drm/sti: include linux/seq_file.h where needed
  drm/tegra: Use lockless gem BO free callback
  drm/exynos: Use lockless gem BO free callback
  drm: Make drm_encoder_helper_funcs optional
2016-05-17 07:06:14 +10:00
Andrzej Hajda
dd65a68674 drm/exynos/decon5433: fix trigger configuration
It seems trigger cannot be configured too early, otherwise it does not work in
case of panel. The patch fixes also trigger flag logic, previously HW-TRIGGER
flag was cleared in case of panel - as a result panel used always software
trigger.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-05-10 23:11:46 +09:00
Philipp Zabel
17ef49bd23 drm/exynos/dsi: use of_graph_get_endpoint_by_regs helper
This allows to remove the local of_graph_get_port_by_reg(),
of_graph_get_endpoint_by_reg(), and of_get_child_by_name_reg()
functions.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Inki Dae <inki.dae@samsung.com>
2016-05-10 23:11:45 +09:00
Philipp Zabel
fb38b1f608 drm/exynos/dpi: use of_graph_get_endpoint_by_regs helper
This allows to remove the local of_graph_get_port_by_reg(),
of_graph_get_endpoint_by_reg(), of_get_child_by_name_reg(),
and of_graph_get_remote_port_parent() functions.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-05-10 23:11:45 +09:00
Daniel Vetter
562d54567f drm/exynos: Nuke dummy fb->dirty callback
It's an optional hook. Might be needed for frontbuffer rendering on
manual upload displays, but a simple TODO doesn't explain at all what
needs to be done or why.

Cc: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-05-10 23:11:44 +09:00
Joonyoung Shim
6aa5e85d7c drm/exynos: use directly DMA mapping APIs on g2d
There is no reason to be wapper functions to use DMA mapping APIs. Use
directly DMA mapping APIs and remove the wapper functions.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-05-10 23:11:44 +09:00
Javier Martinez Canillas
b85881ddf2 drm/exynos/hdmi: Don't print error on deferral due to regulators
The regulators may not be available just because their driver's probe
function was just not executed and so the regulators not registered.

So, in this case the Exynos HDMI driver should not print logs since
a -EPROBE_DEFER is not really an error and that will just pollute
the kernel log and confuse users.

This patch prevents the following misleading messages to be printed:

[    1.443638] [drm:hdmi_probe] *ERROR* failed to get regulators
[    1.449326] [drm:hdmi_probe] *ERROR* hdmi_resources_init failed

Reported-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-05-10 23:11:44 +09:00
Joonyoung Shim
55b19fc75f drm/exynos: fix imported dma-buf to be mapped
The imported dma-buf should be mapped by sub-system exporting it.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-05-10 23:11:43 +09:00
Joonyoung Shim
5a0202f758 drm/exynos: support gem_prime_mmap
This allows exported dma-bufs to be mapped using gem_prime_mmap.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-05-10 23:11:42 +09:00
Tobias Jakobi
fa9971d62a drm/exynos: fimd: harden fimd_calc_clkdiv()
Don't use the vrefresh field of the DRM mode since this
one is supposed to only be used for debug purpose.
Instead use the clock field which should also provide
much more precise information.

Also sanitize the case in which the clock value
should be zero. We then just default to the maximum
clock divisor.

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-05-10 23:11:42 +09:00
Andrzej Hajda
fc173ae6dd drm/exynos: fix cancel page flip code
Driver code did not remove event from the list of pending events before destroy.
As a result drm core later tried to inspect invalid memory location.
The patch replaces removal code with call to core helper.

The bug was detected using KASAN:

[   10.107249] ==================================================================
[   10.107518] BUG: KASAN: use-after-free in drm_release+0xe9c/0x1000 at addr ffffffc089154a18
[   10.107784] Read of size 8 by task modetest/103
[   10.107931] =============================================================================
[   10.113191] BUG kmalloc-128 (Not tainted): kasan: bad access detected
[   10.119608] -----------------------------------------------------------------------------
[   10.119608]
[   10.129243] Disabling lock debugging due to kernel taint
[   10.134551] INFO: Allocated in drm_mode_page_flip_ioctl+0x500/0xa98 age=4 cpu=0 pid=103
[   10.142532] 	alloc_debug_processing+0x18c/0x198
[   10.147043] 	___slab_alloc.constprop.28+0x360/0x380
[   10.151906] 	__slab_alloc.isra.25.constprop.27+0x54/0xa0
[   10.157197] 	kmem_cache_alloc_trace+0x370/0x3b0
[   10.161709] 	drm_mode_page_flip_ioctl+0x500/0xa98
[   10.166400] 	drm_ioctl+0x4c4/0xb68
[   10.169787] 	do_vfs_ioctl+0x16c/0xeb8
[   10.173429] 	SyS_ioctl+0x8c/0xa0
[   10.176642] 	el0_svc_naked+0x24/0x28
[   10.180204] INFO: Freed in exynos_drm_crtc_cancel_page_flip+0xe0/0x160 age=0 cpu=0 pid=103
[   10.188447] 	free_debug_processing+0x174/0x388
[   10.192871] 	__slab_free+0x2e8/0x438
[   10.196431] 	kfree+0x350/0x360
[   10.199469] 	exynos_drm_crtc_cancel_page_flip+0xe0/0x160
[   10.204762] 	exynos_drm_preclose+0x58/0xa0
[   10.208844] 	drm_release+0x1f0/0x1000
[   10.212491] 	__fput+0x1c4/0x5b8
[   10.215613] 	____fput+0xc/0x18
[   10.218654] 	task_work_run+0x130/0x198
[   10.222385] 	do_exit+0x700/0x2278
[   10.225681] 	do_group_exit+0xe4/0x2c8
[   10.229327] 	SyS_exit_group+0x1c/0x20
[   10.232973] 	el0_svc_naked+0x24/0x28
[   10.236532] INFO: Slab 0xffffffbdc2a45500 objects=32 used=10 fp=0xffffffc089154a00 flags=0x4080
[   10.245210] INFO: Object 0xffffffc089154a00 @offset=2560 fp=0xffffffc089157600
[   10.245210]
...
[   10.384532] CPU: 0 PID: 103 Comm: modetest Tainted: G    B           4.5.0-rc3-00748-gd5e2881 #271
[   10.398325] Call trace:
[   10.400764] [<ffffffc000091428>] dump_backtrace+0x0/0x328
[   10.406141] [<ffffffc000091764>] show_stack+0x14/0x20
[   10.411176] [<ffffffc00089c550>] dump_stack+0xb0/0xe8
[   10.416210] [<ffffffc000395778>] print_trailer+0xf8/0x160
[   10.421592] [<ffffffc00039b5cc>] object_err+0x3c/0x50
[   10.426626] [<ffffffc00039d630>] kasan_report_error+0x248/0x550
[   10.432527] [<ffffffc00039da50>] __asan_report_load8_noabort+0x40/0x48
[   10.439039] [<ffffffc000b5b724>] drm_release+0xe9c/0x1000
[   10.444419] [<ffffffc0003d340c>] __fput+0x1c4/0x5b8
[   10.449280] [<ffffffc0003d3884>] ____fput+0xc/0x18
[   10.454055] [<ffffffc000101aa8>] task_work_run+0x130/0x198
[   10.459522] [<ffffffc0000bc058>] do_exit+0x700/0x2278
[   10.464557] [<ffffffc0000bdcfc>] do_group_exit+0xe4/0x2c8
[   10.469939] [<ffffffc0000bdefc>] SyS_exit_group+0x1c/0x20
[   10.475320] [<ffffffc000087530>] el0_svc_naked+0x24/0x28

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-05-10 23:11:41 +09:00
Andrzej Hajda
3f4c8e5c28 drm/exynos/decon5433: do not use unnecessary software trigger
Software trigger should not be used if hardware trigger is configured.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-05-10 23:11:40 +09:00
Andrzej Hajda
b0bb3d0775 drm/exynos/decon5433: handle vblank in vblank interrupt
vblank should be signaled to userspace after reading framebuffers not before,
signaling it in TE interrupt looks wrong. TE triggers reading framebuffers
so it is the worst moment. Tearing is not observable because hardware prevents
it, but there are frequently skipped vblank events.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-05-10 23:11:39 +09:00
Andrzej Hajda
59b62d3c8b drm/exynos/hdmi: expose HDMI-PHY clock as pipeline clock
HDMI-PHY clock should be accessible from other components in the pipeline.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-05-10 23:11:38 +09:00
Daniel Vetter
201f9b9751 drm/exynos: Use lockless gem BO free callback
No dev->struct_mutex anywhere to be seen.

Cc: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1461691808-12414-18-git-send-email-daniel.vetter@ffwll.ch
2016-05-10 09:05:52 +02:00
Dave Airlie
bafb86f5bc Linux 4.6-rc7
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Merge tag 'v4.6-rc7' into drm-next

Merge this back as we've built up a fair few conflicts, and I have
some newer trees to pull in.
2016-05-09 13:49:56 +10:00
Dave Airlie
21daaeee9f Merge tag 'topic/drm-misc-2016-05-04' of git://anongit.freedesktop.org/drm-intel into drm-next
Ofc I promise just a few leftovers for drm-misc and somehow it's the
biggest pull. But really mostly trivial stuff:
- MAINTAINERS updates from Emil
- rename async to nonblock in atomic_commit to avoid the confusion between
  nonblocking ioctl and async flip (= not vblank synced), from Maarten.
  Needs to be regened with newer drivers, but probably only after -rc1 to
  catch them all.
- actually lockless gem_object_free, plus acked driver conversion patches.
  All the trickier prep stuff already is in drm-next.
- Noralf's nice work for generic defio support in our fbdev emulation.
  Keeps the udl hack, and qxl is tested by Gerd.

* tag 'topic/drm-misc-2016-05-04' of git://anongit.freedesktop.org/drm-intel: (47 commits)
  drm: Fixup locking WARN_ON mistake around gem_object_free_unlocked
  drm/etnaviv: Use lockless gem BO free callback
  drm/imx: Use lockless gem BO free callback
  drm/radeon: Use lockless gem BO free callback
  drm/amdgpu: Use lockless gem BO free callback
  drm/gem: support BO freeing without dev->struct_mutex
  MAINTAINERS: Add myself for the new VC4 (RPi GPU) graphics driver.
  MAINTAINERS: Add a bunch of legacy (UMS) DRM drivers
  MAINTAINERS: Add a few DRM drivers by Dave Airlie
  MAINTAINERS: List the correct git repo for the Renesas DRM drivers
  MAINTAINERS: Update the files list for the Renesas DRM drivers
  MAINTAINERS: Update the files list for the Armada DRM driver
  MAINTAINERS: Update the files list for the Rockchip DRM driver
  MAINTAINERS: Update the files list for the Exynos DRM driver
  MAINTAINERS: Add maintainer entry for the VMWGFX DRM driver
  MAINTAINERS: Add maintainer entry for the MSM DRM driver
  MAINTAINERS: Add maintainer entry for the Nouveau DRM driver
  MAINTAINERS: Update the files list for the Etnaviv DRM driver
  MAINTAINERS: Remove unneded wildcard for the i915 DRM driver
  drm/atomic: Add WARN_ON when state->acquire_ctx is not set.
  ...
2016-05-05 09:56:30 +10:00
Maarten Lankhorst
1b3f09d8ca drm/exynos: Rename async to nonblock.
The async name is deprecated and should be changed to nonblocking.

Cc: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1461679905-30177-5-git-send-email-maarten.lankhorst@linux.intel.com
2016-05-02 16:36:23 +02:00
Inki Dae
b5bf0f1ea3 drm/exynos: clean up register definions for fimd and decon
This patch removes suffixes from I80 relevant register definitions,
which are misleading.

This is based on top of below patch set,
     http://www.spinics.net/lists/dri-devel/msg104057.html

Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 11:34:14 +09:00
Inki Dae
9ac26de835 drm/exynos: decon: clean up interface type
This patch cleans up interface type relevant codes.

Trigger mode is determinded only by i80 mode, which isn't
related to Display types - HDMI or Display controller.
So this patch makes the trigger mode to be set only in case of
i80 mode - For DECON-TV, HW Trigger mode is flaged mandatorily
because HDMI Timing Generator generates VSYNC signal
which works as a hardware trigger.

Changelog v2.
- If interface type is HDMI then set out_type to I80.
- fix compile warning.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 11:34:13 +09:00
Inki Dae
a6f75aa161 drm/exynos: fimd: add HW trigger support
This patch adds HW trigger support on i80 mode.

Until now, Exynos DRM only supported SW trigger which was set
SWTRGCMD bit of TRIGCON register by CPU to transfer scanout
buffer to Display bus device or panel.

With this patch, the transmission to Display bus device or
panel will be initiated by FIMD controller.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 11:34:13 +09:00
Inki Dae
4f452c01f5 drm/exynos: clean up wait_for_vblank
This patch cleans up wait_for_vblank relevant codes.
wait_for_vblank callback isn't used anymore in Exynos drm driver
so it removes relevant codes. However, display controllers -
FIMD and DECON - still use this function driver internally
to ensure shadow registers to be updated, which resolves
page fault issue so keep it.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 11:34:12 +09:00
Marek Szyprowski
48f6155a13 drm/exynos: mixer: use generic of_device_get_match_data helper
Simplify code by replacing custom code by generic helper.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 11:34:11 +09:00
Marek Szyprowski
8dfae15648 drm/exynos: mixer: remove support for non-dt platforms
There are no non-devicetree based Exynos platforms in mainline, so there
no point keeping old platform driver data for them.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 11:34:10 +09:00
Marek Szyprowski
57a64122b6 drm/exynos: hdmi: use generic of_device_get_match_data helper
Simplify code by replacing custom code by generic helper.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 11:34:09 +09:00
Marek Szyprowski
f295df175a drm/exynos: rotator: use generic of_device_get_match_data helper
Simplify code by replacing custom code by generic helper.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 11:34:09 +09:00
Marek Szyprowski
e1a7b9b40d drm/exynos: fimd: use generic of_device_get_match_data helper
Simplify code by replacing custom code by generic helper.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 11:34:08 +09:00
Marek Szyprowski
2154ac9229 drm/exynos: dsi: use generic of_device_get_match_data helper
Simplify code by replacing custom code by generic helper and add missing
const qualifier to driver data structures.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 11:34:07 +09:00
Marek Szyprowski
217afc1ee4 drm/exynos: exynos5433_decon: use generic of_device_get_match_data helper
Simplify code by replacing custom code by generic helper.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 11:34:06 +09:00
Andrzej Hajda
196e059a8a drm/exynos: convert clock_enable crtc callback to pipeline clock
clock_enable callback is used only by FIMD->DP pipeline. Similar but more
universal functionality provides pipeline clock.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <daeinki@gmail.com>
2016-04-30 11:33:48 +09:00
Andrzej Hajda
a121d17956 drm/exynos/mixer: enable HDMI-PHY before configuring MIXER
According to documentation HDMI-PHY must be on prior to MIXER configuration.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 01:04:29 +09:00
Andrzej Hajda
c60230eba2 drm/exynos/decon5433: enable HDMI-PHY before configuring DECON
According to documentation and tests HDMI-PHY must be on prior
to MIXER configuration.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
2016-04-30 01:04:26 +09:00
Andrzej Hajda
f26b9343f5 drm/exynos: add support for pipeline clock to the framework
Components belonging to the same pipeline often requires
synchronized clocks. Such clocks are sometimes provided
by external clock controller, but they can be also provided by
pipeline components. In latter case there should be a way
to access them from another component belonging to the same pipeline.
This is the case of:
- DECON,FIMD -> HDMI and HDMI-PHY clock,
- FIMD -> DP and DP clock in FIMD.
The latter case has been solved by clock_enable callback
in exynos_drm_crtc_ops. This solutin will not work with
HDMI path as in this case clock is provided by encoder.

This patch provides more generic solution allowing to register
pipeline clock during initialization in exynos_drm_crtc structure.
This way the clock will be easily accessible from both components.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 01:04:24 +09:00
Andrzej Hajda
2701932899 drm/exynos: add helper to get crtc from pipe
The helper abstracts out conversion from pipeline
to crtc. Currently it is used in two places, but
there will be more uses in next patches.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 01:04:22 +09:00
Andrzej Hajda
3d30ec54c9 drm/exynos/decon5433: do not protect window in plane disable
decon_atomic_begin and decon_atomic_flush protects all windows already.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 01:04:19 +09:00
Andrzej Hajda
e87b3c6248 drm/exynos/decon5433: reset decon on start
Resetting IP at starting ensures that DECON will be in known state
regardless of changes by bootloader.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 01:04:17 +09:00
Andrzej Hajda
92ead494f6 drm/exynos/decon5433: fix DECON standalone update
DECON should be updated after un-protecting windows and after changing
output parameters, otherwise image is not displayed in case of HDMI path.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 01:04:14 +09:00
Andrzej Hajda
11f3022e3b drm/exynos/hdmi: remove registry dump
HDMI registry dump unnecessary spoils console and is not very helpful.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 01:04:12 +09:00
Andrzej Hajda
69f88877c3 drm/exynos/hdmi: add core reset code
To ensure HDMI-PHY reprogramming will not affect
HDMI the latter should be reset.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 01:03:55 +09:00
Andrzej Hajda
5dd45e2cd2 drm/exynos/hdmi: add PHY power off signal handling
HDMI-PHY power off bit defaults to 0 in older HDMI versions.
In case of Exynos5433 it defaults to 1. To make code
consistent across all versions this bit is always unset/set in
power on/off sequences.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 01:03:54 +09:00
Andrzej Hajda
4677f51ade drm/exynos/hdmi: fix PHY configuration sequence
Proper PHY configuration should be as follow:
1. set HDMI clock parents to OSCCLK.
2. reconfigure PHY.
3. set HDMI clock parents to PHY.
4. wait for PLL stabilization.

The patch fixes it and consolidates the code.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 01:03:54 +09:00
Andrzej Hajda
68cd004e54 drm/exynos/hdmi: add Exynos5433 support
HDMI on Exynos5433 differs from previous versions:
- different HDMI-PHY settings,
- different clocks,
- SYSREG registers for enabling reference clock,
- MODE_SET register in HDMI-PHY.
It is distinguished from other variants by different compatible string.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 01:03:54 +09:00
Andrzej Hajda
fec81a3c81 drm/exynos/hdmi: stop programming registers with default values
There is no point in rewriting default values, as the IP is reset anyway.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 01:03:53 +09:00
Andrzej Hajda
5eefadb54c drm/exynos/hdmi: code cleanup
The patch performs following clean-ups:
- remove unnecessary white spaces,
- remove obvious comments,
- fix tabulations,
- remove NULL initializators,
- re-order driver data.

The patch does not change driver's behavior.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 01:03:53 +09:00
Andrzej Hajda
65e9803091 drm/exynos/hdmi: use array specifier for HDMI-PHY configurations
HDMI-PHY configurations are stored as array pointer and count pair,
we can re-use existing helpers to simplify their initialization.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 01:03:53 +09:00
Andrzej Hajda
190a3c619d drm/exynos/hdmi: constify global variables
These variables should not be modified.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 01:03:46 +09:00
Andrzej Hajda
9be7e98984 drm/exynos/hdmi: clock code re-factoring
With incoming support for newer SoCs different set of clocks will be required,
depending on IP version. The patch prepares the driver for it.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 01:03:46 +09:00
Javier Martinez Canillas
12867e4e6b drm/exynos: Use VIDEO_SAMSUNG_S5P_G2D=n as G2D Kconfig dependency
Commit 254d4d111e ("drm/exynos: Add dependency for G2D in Kconfig") made
the DRM_EXYNOS_G2D symbol to only be selectable if the s5p-g2d V4L2 driver
is not enabled, since both use the same HW IP block.

But added the dependency as depends on !VIDEO_SAMSUNG_S5P_G2D which isn't
correct since Kconfig expressions are not boolean but tristate. So it will
only evaluate to 'n' if VIDEO_SAMSUNG_S5P_G2D=y but it will evaluate to m
if VIDEO_SAMSUNG_S5P_G2D=m.

This means that both the V4L2 and DRM drivers can be enabled if the former
is enabled as a module, which is not what we want.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 01:03:46 +09:00
Dan Carpenter
9e3fe3508f drm/exynos: fix a warning message
The "ret = regmap_write()" assignment was missing so this error message
is never printed.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 01:03:46 +09:00
Dan Carpenter
943491af10 drm/exynos: mic: fix an error code
We accidentally return success instead of a negative error code here.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 01:03:46 +09:00
Marek Szyprowski
4f93eed776 drm/exynos: fimd: fix broken dp_clock control
Commit 1feafd3afd ("drm/exynos: add
exynos5420 support for fimd") add support for Exynos 5420 SoC, but it
broke enabling display clock feature because of incorrect condition
check. This patch fixes it, so display is working again on platforms
requiring display clock control (i.e. Exynos5250-based SNOW platform).

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 01:03:45 +09:00
Andrzej Hajda
25c6a853fc drm/exynos: build fbdev code conditionally
Fbdev code should be compiled only if CONFIG_DRM_FBDEV_EMULATION option
is enabled. The patch fixes exynos-drm code trying to manipulate
fbdev data which is not initialized in case CONFIG_DRM_FBDEV_EMULATION
is disabled.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 01:03:45 +09:00
Andrzej Hajda
81e50bcd1b drm/exynos: fix adjusted_mode pointer in exynos_plane_mode_set
exynos_plane_mode_set should use adjusted_mode from the same atomic state as
plane state. Otherwise it will result in incorrect behavior in case
crtc mode changes.

The patch fixes bug with black console framebuffer in case of command mode
panels.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 01:03:45 +09:00
Arnd Bergmann
0a938697d7 drm/exynos: fix error handling in exynos_drm_subdrv_open
gcc-6 warns about a pointless loop in exynos_drm_subdrv_open:

drivers/gpu/drm/exynos/exynos_drm_core.c: In function 'exynos_drm_subdrv_open':
drivers/gpu/drm/exynos/exynos_drm_core.c:104:199: error: self-comparison always evaluates to false [-Werror=tautological-compare]
  list_for_each_entry_reverse(subdrv, &subdrv->list, list) {

Here, the list_for_each_entry_reverse immediately terminates because
the subdrv pointer is compared to itself as the loop end condition.

If we were to take the current subdrv pointer as the start of the
list (as we would do if list_for_each_entry_reverse() was not a macro),
we would iterate backwards over the &exynos_drm_subdrv_list anchor,
which would be even worse.

Instead, we need to use list_for_each_entry_continue_reverse()
to go back over each subdrv that was successfully opened until
the first entry.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30 01:03:45 +09:00
Daniel Vetter
2f42420084 drm/exynos: drop struct_mutex from fbdev setup
Doesn't protect anything at all, and probably just here because a long
time ago dev->struct_mutex was required to allocate gem objects.

With this patch exynos is completely struct_mutex free!

Cc: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1459330852-27668-10-git-send-email-daniel.vetter@ffwll.ch
2016-04-20 12:58:03 +02:00
Daniel Vetter
6c991a2208 drm/exynos: drop struct_mutex from exynos_drm_gem_get_ioctl
The only things this protects is reading ->flags and ->size, both of
which are invariant over the lifetime of an exynos gem bo. So no
locking needed at all (besides that, nothing protects the writers
anyway).

Aside: exynos_gem_obj->size is redundant with
exynos_gem_obj->base.size and probably should be removed.

v2: Use _unlocked unreference (Daniel Stone).

Cc: Daniel Stone <daniel@fooishbar.org>
Cc: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1459330852-27668-9-git-send-email-daniel.vetter@ffwll.ch
2016-04-20 12:57:59 +02:00
Daniel Vetter
8e97d9ef36 drm/exynos: drop struct_mutex from exynos_gem_map_sgt_with_dma
The sg table isn't refcounted, there's no corresponding locking for
unmapping and drm_map_sg is ok with being called concurrently.

So drop the locking since it doesn't protect anything.

Cc: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1459330852-27668-8-git-send-email-daniel.vetter@ffwll.ch
2016-04-20 12:57:54 +02:00
Daniel Vetter
91263622f1 drm/exynos: Drop dev->struct_mutex from mmap offset function
Simply forgotten about this when I was doing my general cleansing of
simple gem mmap offset functions. There's nothing but core functions
called here, and they all have their own protection already.

Aside: DRM_ERROR for userspace controlled input isn't great, but
that's for another patch.

v2: Use _unlocked unreference (Daniel Stone).

Cc: Daniel Stone <daniel@fooishbar.org>
Cc: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1459330852-27668-7-git-send-email-daniel.vetter@ffwll.ch
2016-04-20 12:57:44 +02:00
Javier Martinez Canillas
2072fe5146 drm/exynos: Use VIDEO_SAMSUNG_S5P_G2D=n as G2D Kconfig dependency
Commit 254d4d111e ("drm/exynos: Add dependency for G2D in Kconfig") made
the DRM_EXYNOS_G2D symbol to only be selectable if the s5p-g2d V4L2 driver
is not enabled, since both use the same HW IP block.

But added the dependency as depends on !VIDEO_SAMSUNG_S5P_G2D which isn't
correct since Kconfig expressions are not boolean but tristate. So it will
only evaluate to 'n' if VIDEO_SAMSUNG_S5P_G2D=y but it will evaluate to m
if VIDEO_SAMSUNG_S5P_G2D=m.

This means that both the V4L2 and DRM drivers can be enabled if the former
is enabled as a module, which is not what we want.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-13 00:23:49 +09:00
Dan Carpenter
36ffc2bde5 drm/exynos: fix a warning message
The "ret = regmap_write()" assignment was missing so this error message
is never printed.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-12 22:51:02 +09:00
Dan Carpenter
6c9c15813b drm/exynos: mic: fix an error code
We accidentally return success instead of a negative error code here.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-12 22:50:59 +09:00
Marek Szyprowski
d42a114d88 drm/exynos: fimd: fix broken dp_clock control
Commit 1feafd3afd ("drm/exynos: add
exynos5420 support for fimd") add support for Exynos 5420 SoC, but it
broke enabling display clock feature because of incorrect condition
check. This patch fixes it, so display is working again on platforms
requiring display clock control (i.e. Exynos5250-based SNOW platform).

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-12 22:50:57 +09:00
Andrzej Hajda
9b988a0dc9 drm/exynos: build fbdev code conditionally
Fbdev code should be compiled only if CONFIG_DRM_FBDEV_EMULATION option
is enabled. The patch fixes exynos-drm code trying to manipulate
fbdev data which is not initialized in case CONFIG_DRM_FBDEV_EMULATION
is disabled.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-12 22:50:54 +09:00
Andrzej Hajda
311521e256 drm/exynos: fix adjusted_mode pointer in exynos_plane_mode_set
exynos_plane_mode_set should use adjusted_mode from the same atomic state as
plane state. Otherwise it will result in incorrect behavior in case
crtc mode changes.

The patch fixes bug with black console framebuffer in case of command mode
panels.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-12 22:50:52 +09:00
Arnd Bergmann
55c4b906aa drm/exynos: fix error handling in exynos_drm_subdrv_open
gcc-6 warns about a pointless loop in exynos_drm_subdrv_open:

drivers/gpu/drm/exynos/exynos_drm_core.c: In function 'exynos_drm_subdrv_open':
drivers/gpu/drm/exynos/exynos_drm_core.c:104:199: error: self-comparison always evaluates to false [-Werror=tautological-compare]
  list_for_each_entry_reverse(subdrv, &subdrv->list, list) {

Here, the list_for_each_entry_reverse immediately terminates because
the subdrv pointer is compared to itself as the loop end condition.

If we were to take the current subdrv pointer as the start of the
list (as we would do if list_for_each_entry_reverse() was not a macro),
we would iterate backwards over the &exynos_drm_subdrv_list anchor,
which would be even worse.

Instead, we need to use list_for_each_entry_continue_reverse()
to go back over each subdrv that was successfully opened until
the first entry.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-12 22:50:48 +09:00
Yakir Yang
bcbb7033ac drm: bridge: analogix/dp: fix some obvious code style
Fix some obvious alignment problems, like alignment and line
over 80 characters problems, make this easy to be maintained
later.

Acked-by: Jingoo Han <jingoohan1@gmail.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Tested-by: Caesar Wang <wxt@rock-chips.com>
Tested-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Yakir Yang <ykk@rock-chips.com>
2016-04-05 10:13:01 +08:00
Heiko Stuebner
59c0ef315d drm/exynos: dp: rename implementation specific driver part
The core functionality now resides in the generic bridge part so the
exynos-specific implementation details can get a more suitable nameing.

Tested-by: Caesar Wang <wxt@rock-chips.com>
Tested-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Yakir Yang <ykk@rock-chips.com>
2016-04-05 10:12:59 +08:00
Yakir Yang
3424e3a4f8 drm: bridge: analogix/dp: split exynos dp driver to bridge directory
Split the dp core driver from exynos directory to bridge directory,
and rename the core driver to analogix_dp_*, rename the platform
code to exynos_dp.

Beside the new analogix_dp driver would export six hooks.
"analogix_dp_bind()" and "analogix_dp_unbind()"
"analogix_dp_suspned()" and "analogix_dp_resume()"
"analogix_dp_detect()" and "analogix_dp_get_modes()"

The bind/unbind symbols is used for analogix platform driver to connect
with analogix_dp core driver. And the detect/get_modes is used for analogix
platform driver to init the connector.

They reason why connector need register in helper driver is rockchip drm
haven't implement the atomic API, but Exynos drm have implement it, so
there would need two different connector helper functions, that's why we
leave the connector register in helper driver.

Acked-by: Inki Dae <inki.dae@samsung.com>
Tested-by: Caesar Wang <wxt@rock-chips.com>
Tested-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Yakir Yang <ykk@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-04-05 10:11:48 +08:00
Joonyoung Shim
6564c65f3a drm/exynos: add DRM_EXYNOS_GEM_MAP ioctl
The commit d931589c01 ("drm/exynos: remove DRM_EXYNOS_GEM_MAP_OFFSET
ioctl") removed it same with the ioctl that this patch adds. The reason
that removed DRM_EXYNOS_GEM_MAP_OFFSET was we could use
DRM_IOCTL_MODE_MAP_DUMB. Both did exactly same thing.

Now we again will revive it as DRM_EXYNOS_GEM_MAP because of render
node. DRM_IOCTL_MODE_MAP_DUMB isn't permitted in render node.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-03-13 14:54:03 +09:00
Andrzej Hajda
6c81e96d4b drm/exynos/dsi: use core helper to create DSI packet
Core provides generic helper to create DSI packet, use it instead of
custom code.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-03-02 00:21:37 +09:00
Marek Szyprowski
f43c35966a drm/exynos: use real device for DMA-mapping operations
This patch changes device pointer provided to all calls to DMA-mapping
subsystem from the virtual exynos-drm 'device' to the real device pointer
of one of the CRTC devices (decon, fimd or mixer). This way no more hacks
will be needed to configure proper DMA-mapping address space on the common
virtual exynos-drm device. This change also removes the need for some
hacks in IOMMU related code. It also finally solves the problem of Exynos
DRM driver not working on ARM64 architecture, which provides noop-based
DMA-mapping operations for virtual platform devices.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-03-01 23:53:47 +09:00
Marek Szyprowski
a5fb26cdaa drm/exynos: refactor driver and device registration code
This patch refactors driver and device registration by moving all drivers
to the common array. This way additional flags can be added later for
new features. #ifdef-based code has been replaced by IS_ENABLED() macro
usage.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-03-01 23:37:25 +09:00
Andrzej Hajda
3e8a4738f9 drm/exynos/fimc: remove unused camera interface polarization code
Polarization was never configured for DRM-FIMC device, so fimc_set_polarity
function did nothing. In fact DRM does not use camera interface so there
is no point in configuring it.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-03-01 23:37:23 +09:00
Andrzej Hajda
27d60e3d28 drm/exynos: remove struct exynos_drm_panel_info
struct exynos_drm_panel_info is not used anymore, except exynos_dp,
which can integrate useful fields directly into its context.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-03-01 23:37:22 +09:00
Chanho Park
1feafd3afd drm/exynos: add exynos5420 support for fimd
This patch adds a exynos5420 driver data to support mic_bypass
option to bypass the mic from display out path.
The mic(Mobile image compressor) compresses RGB data from fimd
and send the compressed data to the mipi dsi.
The bypass option can be founded from system register and the bit
is 11. The option bit has been introduced since exynos5420. The
only difference between exynos5250 and exynos5420/exynos5422 is
existence of the bit. Until the MIC is defined and enabled from
device tree, the bypass mic will be default option.

Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-03-01 23:37:21 +09:00
Chanho Park
217fb00a79 drm/exynos: use DIV_ROUND_CLOSEST to find the closest div
This patch uses DIV_ROUND_CLOSEST instead of DIV_ROUND_UP
The DIV_ROUND_CLOSEST can be used to find the closest integer
value when we divide some integers.

Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-03-01 23:37:21 +09:00
Andrzej Hajda
4e6319cd52 drm/exynos: remove incorrect ccflags from Makefile
Include directories are provided by core already, adding them in driver
is redundand and causes warnings in case of out-of-tree build.

v2:
    - fixed include in exynos_drm_iommu.c
    - typo in commit message

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-03-01 23:37:20 +09:00
Andrzej Hajda
9844d6ebb1 drm/exynos/decon: make irq handler static
The function is used only locally.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-03-01 23:37:20 +09:00
Andrzej Hajda
9c2580cf1a drm/exynos/hdmi: remove unused variable
The variable is unused for long time.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-03-01 23:37:20 +09:00
Andrzej Hajda
b115361ec3 drm/exynos/dsi: constify read only structures
All global variables are read only.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-03-01 23:37:19 +09:00
Andrzej Hajda
bb32e4088c drm/exynos/dsi: replace registry access macros with functions
Functions are preferred over macros as more type-safe.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-03-01 23:37:18 +09:00
Chanho Park
fdc2e10893 drm/exynos: support exynos5422 mipi-dsi
This patch supports mipi dsi for exynos5422. The dsi register
offsets of the exynos5422 are similar with exynos5433. However,
the values of the registers are quite different from the
exynos5433. For example, the exynos5422 uses sw reset like
previous chips.

Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-03-01 23:37:18 +09:00
Andrzej Hajda
92c96ff82b drm/exynos/decon: fix disable clocks order
Decon requires that clocks should be disabled in reverse order. Otherwise
system hangs.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-03-01 23:37:15 +09:00