Commit Graph

255 Commits

Author SHA1 Message Date
Laurent Pinchart
0b20a0f8c3 drm: Add old state pointer to CRTC .enable() helper function
The old state is useful for drivers that need to perform operations at
enable time that depend on the transition between the old and new
states.

While at it, rename the operation to .atomic_enable() to be consistent
with .atomic_disable(), as the .enable() operation is used by atomic
helpers only.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> # for sun4i
Acked-by: Philipp Zabel <p.zabel@pengutronix.de> # for imx-drm and mediatek
Acked-by: Alexey Brodkin <abrodkin@synopsys.com> # for arcpgu
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> # for atmel-hlcdc
Acked-by: Liviu Dudau <Liviu.Dudau@arm.com> # for hdlcd and mali-dp
Acked-by: Stefan Agner <stefan@agner.ch> # for fsl-dcu
Tested-by: Philippe Cornu <philippe.cornu@st.com> # for stm
Acked-by: Philippe Cornu <philippe.cornu@st.com> # for stm
Acked-by: Vincent Abriou <vincent.abriou@st.com> # for sti
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com> # for vmwgfx
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170630093646.7928-2-laurent.pinchart+renesas@ideasonboard.com
2017-06-30 14:53:14 +02:00
Dave Airlie
925344ccc9 Linux 4.12-rc5
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BackMerge tag 'v4.12-rc5' into drm-next

Linux 4.12-rc5 for nouveau fixes
2017-06-16 13:58:27 +10:00
Leonard Crestez
e36aecba54 drm/imx: imx-ldb: Accept drm_of_find_panel_or_bridge failure
Not having an endpoint bound in DT should not cause a failure here,
there are fallbacks. So explicitly accept a missing endpoint.

This behavior change was introduced by refactoring in drm_of parsing
code and it should not require dts changes.

In particular this fixes imx6qdl-sabreauto boards.

Link: https://lists.freedesktop.org/archives/dri-devel/2017-May/141233.html
Fixes: ebc9446135 ("drm: convert drivers to use drm_of_find_panel_or_bridge")
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2017-06-06 10:21:10 +02:00
Jose Abreu
b0febde779 drm/bridge/synopsys: dw-hdmi: Use bridge->mode_valid() callback
Now that we have a callback to check if bridge supports a given mode
we can use it in Synopsys Designware HDMI bridge so that we restrict
the number of probbed modes to the ones we can actually display.

Also, there is no need to use mode_fixup() callback as mode_valid()
will handle the mode validation.

NOTE: I also had to change the pdata declaration of mode_valid
custom callback so that the passed modes are const. I also changed
in the platforms I found. Not even compiled it though.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Carlos Palminha <palminha@synopsys.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Archit Taneja <architt@codeaurora.org>
Cc: Andrzej Hajda <a.hajda@samsung.com>
Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Carlo Caione <carlo@caione.org>
Cc: Kevin Hilman <khilman@baylibre.com>
Cc: Mark Yao <mark.yao@rock-chips.com>
Cc: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/3d8d449e4d13d2535fa292c75f5fa931de4a4fa8.1495720737.git.joabreu@synopsys.com
2017-06-05 12:09:50 +05:30
Daniel Vetter
85769cf7cd drm/imx: Drop drm_vblank_cleanup
It's only done in the driver load error path, where vblanks don't need
to be quiescent anyway. And that's all drm_vblank_cleanup does, since
the core will release the vblank allocations on its own already. So
drop it.

Cc: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170524145212.27837-24-daniel.vetter@ffwll.ch
2017-05-31 10:49:32 +02:00
Robert Foss
c2c446ad29 drm: Add DRM_MODE_ROTATE_ and DRM_MODE_REFLECT_ to UAPI
Add DRM_MODE_ROTATE_ and DRM_MODE_REFLECT_ defines to the UAPI
as a convenience.

Ideally the DRM_ROTATE_ and DRM_REFLECT_ property ids are looked up
through the atomic API, but realizing that userspace is likely to take
shortcuts and assume that the enum values are what is sent over the
wire.

As a result these defines are provided purely as a convenience to
userspace applications.

Changes since v3:
 - Switched away from past tense in comments
 - Add define name change to previously mis-spelled DRM_REFLECT_X comment
 - Improved the comment for the DRM_MODE_REFLECT_<axis> comment

Changes since v2:
 - Changed define prefix from DRM_MODE_PROP_ to DRM_MODE_
 - Fix compilation errors
 - Changed comment formatting
 - Deduplicated comment lines
 - Clarified DRM_MODE_PROP_REFLECT_ comment

Changes since v1:
 - Moved defines from drm.h to drm_mode.h
 - Changed define prefix from DRM_ to DRM_MODE_PROP_
 - Updated uses of the defines to the new prefix
 - Removed include from drm_rect.c
 - Stopped using the BIT() macro

Signed-off-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Acked-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170519205017.23307-2-robert.foss@collabora.com
2017-05-22 09:49:48 +02:00
Dave Airlie
df45eaca51 Merge tag 'drm-misc-next-2017-04-07' of git://anongit.freedesktop.org/git/drm-misc into drm-next
Last drm-misc-next pull req for 4.12

Core changes:
 - fb_helper checkpatch cleanup and simplified _add_one_connector() (Thierry)
 - drm_ioctl and drm_sysfs improved/gained documentation (Daniel)
 - [ABI] Repurpose reserved field in drm_event_vblank for crtc_id (Ander)
 - Plumb acquire ctx through legacy paths to avoid lock_all and legacy_backoff
   (Daniel)
 - Add connector_atomic_check to check conn constraints on modeset (Maarten)
 - Add drm_of_find_panel_or_bridge to remove boilerplate in drivers (Rob)

Driver changes:
 - meson moved to drm-misc (Neil)
 - Added support for Amlogic GX SoCs in dw-hdmi (Neil)
 - Rockchip unbind actually cleans up the things bind initializes (Jeffy)
 - A couple misc fixes in virtio, dw-hdmi

NOTE: this also includes a backmerge of drm-next as well rc5 (we needed vmwgfx
      as well as the new synopsys media formats)

* tag 'drm-misc-next-2017-04-07' of git://anongit.freedesktop.org/git/drm-misc: (77 commits)
  Revert "drm: Don't allow interruptions when opening debugfs/crc"
  drm: Only take cursor locks when the cursor plane exists
  drm/vmwgfx: Fix fbdev emulation using legacy functions
  drm/rockchip: Shutdown all crtcs when unbinding drm
  drm/rockchip: Reorder drm bind/unbind sequence
  drm/rockchip: analogix_dp: Disable clock when unbinding
  drm/rockchip: vop: Unprepare clocks when unbinding
  drm/rockchip: vop: Enable pm domain before vop_initial
  drm/rockchip: cdn-dp: Don't unregister audio dev when unbinding
  drm/rockchip: cdn-dp: Don't try to release firmware when not loaded
  drm: bridge: analogix: Destroy connector & encoder when unbinding
  drm: bridge: analogix: Disable clock when unbinding
  drm: bridge: analogix: Unregister dp aux when unbinding
  drm: bridge: analogix: Detach panel when unbinding analogix dp
  drm: Don't allow interruptions when opening debugfs/crc
  drm/virtio: don't leak bo on drm_gem_object_init failure
  drm: bridge: dw-hdmi: fix input format/encoding from plat_data
  drm: omap: use common OF graph helpers
  drm: convert drivers to use drm_of_find_panel_or_bridge
  drm: convert drivers to use of_graph_get_remote_node
  ...
2017-04-11 07:41:10 +10:00
Rob Herring
ebc9446135 drm: convert drivers to use drm_of_find_panel_or_bridge
Similar to the previous commit, convert drivers open coding OF graph
parsing to use drm_of_find_panel_or_bridge instead.

This changes some error messages to debug messages (in the graph core).
Graph connections are often "no connects" depending on the particular
board, so we want to avoid spurious messages. Plus the kernel is not a
DT validator.

Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Archit Taneja <architt@codeaurora.org>
Tested-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
[seanpaul dropped rockchip changes since they're now obsolete]
Signed-off-by: Sean Paul <seanpaul@chromium.org>
2017-04-06 17:00:27 -04:00
Dave Airlie
0e96133214 imx-drm module/dependency changes
- The PRE/PRG drivers added an unwanted DRM dependency to the ipu-v3 driver.
   Remove the dependency by conditionally disabling PRE/PRG support depending
   on CONFIG_DRM.
 - Merge the imx-ipuv3-crtc module into the imxdrm module. There is no reason
   anymore for a separation between core drm driver and crtc/plane drivers,
   especially since commit eb8c88808c ("drm/imx: add deferred plane
   disabling"), which added a dependency on imx-ipuv3-crtc to the imxdrm
   module.
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Merge tag 'imx-drm-next-2017-04-04' of git://git.pengutronix.de/git/pza/linux into drm-next

imx-drm module/dependency changes

- The PRE/PRG drivers added an unwanted DRM dependency to the ipu-v3 driver.
  Remove the dependency by conditionally disabling PRE/PRG support depending
  on CONFIG_DRM.
- Merge the imx-ipuv3-crtc module into the imxdrm module. There is no reason
  anymore for a separation between core drm driver and crtc/plane drivers,
  especially since commit eb8c88808c ("drm/imx: add deferred plane
  disabling"), which added a dependency on imx-ipuv3-crtc to the imxdrm
  module.

* tag 'imx-drm-next-2017-04-04' of git://git.pengutronix.de/git/pza/linux:
  drm/imx: merge imx-drm-core and ipuv3-crtc in one module
  gpu: ipu-v3: don't depend on DRM being enabled
2017-04-07 05:34:46 +10:00
Lucas Stach
3d1df96ad4 drm/imx: merge imx-drm-core and ipuv3-crtc in one module
While it is possible to hook other CRTC implementations into imx-drm
in practice there are none yet and the option to disable ipuv3-crtc
support has been hidden for a long time.

Now that the imx-drm-core has learned to deal with some of the
specifics of IPUv3 there is a cyclic dependency between both parts.
To get rid of this and to decimate the Kconfig maze a bit, simply
merge both parts into one module.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2017-04-04 10:59:08 +02:00
Dave Airlie
edd849e544 Merge tag 'drm-misc-next-2017-03-21' of git://anongit.freedesktop.org/git/drm-misc into drm-next
drm-misc for 4.12, 2nd attempt this week:

- topic branch from Jon Corbet for the new graph kerneldoc support
- lots of graphs for kms/atomic things using the above
- some vblank query tuning from Chris
- gem/cma_fops macros
- moar docs

Driver stuff:
- vc4 hdmi audio, yay (Eric)
- dw-hdmi polish from a bunch of people
- some rockchip dp updates that didn't make last week (Chris Zhong)
- misc bridge&driver updates

* tag 'drm-misc-next-2017-03-21' of git://anongit.freedesktop.org/git/drm-misc: (37 commits)
  drm/edid: detect SCDC support in HF-VSDB
  drm/edid: detect SCDC support in HF-VSDB
  drm/edid: check for HF-VSDB block
  drm: Add SCDC helpers
  drm: bridge: dw-hdmi: add HDMI vendor specific infoframe config
  drm/bridge: dw_hdmi: support i2c extended read mode
  drm/msm: add stubs for msm_{perf,rd}_debugfs_cleanup
  drm: bochs: Don't remove uninitialized fbdev framebuffer
  drm: vc4: remove redundant check of plane being non-null
  drm/vc4: use platform_register_drivers
  dma-fence: add dma_fence_match_context helper
  drm/vc4: Add HDMI audio support
  dt-bindings: Document the dmas and dma-names properties for VC4 HDMI
  drm/atmel-hlcdc: Fix suspend/resume implementation
  drm: Skip the waitqueue setup for vblank queries
  drm: Defer disabling the vblank IRQ until the next interrupt (for instant-off)
  drm/doc: atomic overview, with graph
  drm/doc: diagram for mode objects and properties
  drm/doc: Consistent kerneldoc include order
  drm/doc: Add KMS overview graphs
  ...
2017-03-23 08:53:41 +10:00
Liu Ying
7d5ed2920d drm/imx: Remove unneeded definition for structure imx_drm_component
No one is using the structure imx_drm_component, so let's remove the
definition to save several lines.

Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2017-03-16 10:14:52 +01:00
Lucas Stach
00514e8593 drm/imx: use PRG/PRE when possible
Allow the planes to use the PRG/PRE units as linear prefetchers when
possible. This improves DRAM efficiency a bit and reduces the chance
for display underflow when the memory subsystem is under load.

This does not yet support scanning out tiled buffers directly, as this
needs more work, but it already wires up the basic interaction between
imx-drm, the IPUv3 driver and the PRG and PRE drivers.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2017-03-16 10:14:51 +01:00
Lucas Stach
e0fb7dd2f0 drm/imx: enable/disable PRG on CRTC enable/disable
On i.MX6 QuadPlus the PRG needs to be clocked in order to pass
through the data access requests from the IDMAC. This call is a
no-op for other all other SoCs.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2017-03-16 10:14:50 +01:00
Philipp Zabel
f6b50ef14e drm/imx: ipuv3-plane: add support for separate alpha planes
The IPUv3 can read 8-bit alpha values from a separate plane buffer using
a companion IDMAC channel driven by the Alpha Transparency Controller
(ATC) for the graphics channels. The conditional read mechanism allows
to reduce memory bandwidth by skipping reads of color data for
completely transparent bursts.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2017-03-15 15:42:33 +01:00
Philipp Zabel
0bfd56f055 drm/imx: extend drm_plane_state_to_eba for separate channel support
Allow to calculate EBA for planes other than plane 0. This is in
preparation for the following patch, which adds support for separate
alpha planes.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2017-03-15 15:42:32 +01:00
Philipp Zabel
eb8c88808c drm/imx: add deferred plane disabling
The DP (display processor) channel disable code tried to busy wait for
the DP sync flow end interrupt status bit when disabling the partial
plane without a full modeset. That never worked reliably, and it was
disabled completely by the recent "gpu: ipu-v3: remove IRQ dance on DC
channel disable" patch, causing ipu_wait_interrupt to always time out
after 50 ms, which in turn would trigger a timeout in
drm_atomic_helper_wait_for_vblanks.

This patch changes ipu_plane_atomic_disable to only queue a DP channel
register update at the next frame boundary and set a flag, which can be
done without any waiting whatsoever. The imx_drm_atomic_commit_tail then
calls a new ipu_plane_disable_deferred function that does the actual
IDMAC teardown of the planes that are flagged for deferred disabling,
after waiting for the vblank.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
2017-03-15 15:42:29 +01:00
Philipp Zabel
cf92fefd04 drm/imx: don't wait for vblank and stop calling cleanup_planes in commit_tail
drm_atomic_helper_cleanup_planes only calls the cleanup_fb plane
helpers, which we don't implement as a CMA framebuffer based driver.
There is no reason to wait for vblanks in commit_tail only to do nothing
afterwards.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
2017-03-15 15:28:27 +01:00
Philipp Zabel
f9bb7acb9b gpu: ipu-v3: add unsynchronised DP channel disabling
When disabling the foreground DP channel during a modeset, the DC is
already disabled without waiting for end of frame. There is no reason
to wait for a frame boundary before updating the DP registers in that
case.
Add support to apply updates immediately. No functional changes, yet.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
2017-03-15 15:28:27 +01:00
Philipp Zabel
2e9a71218e drm/imx: ipuv3-plane: update overlay plane position also without modeset
Previously, the overlay plane position would only be updated when the
plane was first enabled or during a modeset. We can instruct the DP to
move the plane also when just updating the EBA.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2017-03-15 15:28:26 +01:00
Philipp Zabel
03ee3da8ce drm/imx: ipuv3-plane: use drm_plane_helper_check_state, clipped coordinates
Use drm_plane_helper_check_state to clip raw user coordinates to crtc
bounds. This checks for full plane coverage and scaling already, so
we can drop some custom checks. Use the clipped coordinates everywhere.

Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2017-03-15 15:28:26 +01:00
Daniel Vetter
d55f7e5d54 drm: Create DEFINE_DRM_GEM_CMA_FOPS and roll it out to drivers
Less code ftw.

This converts all drivers except the tinydrm helper module. That one
needs more work, since it gets the THIS_MODULE reference from
tinydrm.ko instead of the actual driver module like it should.
Probably needs a similar trick like I used here with generating the
entire struct with a macro.

Cc: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170308141257.12119-24-daniel.vetter@ffwll.ch
2017-03-14 14:38:34 +01:00
Kieran Bingham
2e6777e8d5 drm: bridge: dw-hdmi: Remove device type from platform data
The device type isn't used anymore now that workarounds and PHY-specific
operations are performed based on version information read at runtime.
Remove it.

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20170303172007.26541-9-laurent.pinchart+renesas@ideasonboard.com
2017-03-10 15:36:38 +05:30
Daniel Vetter
8e22e1b349 Merge airlied/drm-next into drm-misc-next
Backmerge the main pull request to sync up with all the newly landed
drivers. Otherwise we'll have chaos even before 4.12 started in
earnest.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2017-02-26 21:34:42 +01:00
Dave Airlie
43f86c9470 imx-drm: TVE regulator, fb size limit, and ipu-v3 module fixes
- Fix i.MX5 TV encoder probing in case no dac-supply regulator
   is set in the device tree.
 - Remove 64 pixel min_width/height limit, which unnecessarily
   prohibits creation of small frame buffers.
 - Add missing ipu_csi_set_downsize export, for media drivers
   built as modules.
 - Stop modifying pdev->dev.of_node for IPU client devices that
   do not have an OF modalias to fix module autoloading.
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Merge tag 'imx-drm-fixes-2017-02-17' of https://git.pengutronix.de/git/pza/linux into drm-next

imx-drm: TVE regulator, fb size limit, and ipu-v3 module fixes

- Fix i.MX5 TV encoder probing in case no dac-supply regulator
  is set in the device tree.
- Remove 64 pixel min_width/height limit, which unnecessarily
  prohibits creation of small frame buffers.
- Add missing ipu_csi_set_downsize export, for media drivers
  built as modules.
- Stop modifying pdev->dev.of_node for IPU client devices that
  do not have an OF modalias to fix module autoloading.

* tag 'imx-drm-fixes-2017-02-17' of https://git.pengutronix.de/git/pza/linux:
  gpu: ipu-v3: Stop overwriting pdev->dev.of_node of child devices
  gpu: ipu-v3: export ipu_csi_set_downsize
  drm/imx: lift 64x64 pixel minimum framebuffer size requirement
  drm/imx: imx-tve: Do not set the regulator voltage
2017-02-23 12:10:42 +10:00
Philipp Zabel
f57c511a9d drm/imx: lift 64x64 pixel minimum framebuffer size requirement
There is no reason to limit framebuffer size to 64x64 pixels at a
minimum on creation. The actual scanout limitations (width >= 13 for the
base plane and height >= 2) are checked in atomic_check.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
2017-02-17 08:04:26 +01:00
Fabio Estevam
fc12bccda8 drm/imx: imx-tve: Do not set the regulator voltage
Commit deb65870b5 ("drm/imx: imx-tve: check the value returned by
regulator_set_voltage()") exposes the following probe issue:

63ff0000.tve supply dac not found, using dummy regulator
imx-drm display-subsystem: failed to bind 63ff0000.tve (ops imx_tve_ops): -22

When the 'dac-supply' is not passed in the device tree a dummy regulator is
used and setting its voltage is not allowed.

To fix this issue, do not set the dac-supply voltage inside the driver
and let its voltage be specified in the device tree.

Print a warning if the the 'dac-supply' voltage has a value different
from 2.75V.

Fixes: deb65870b5 ("drm/imx: imx-tve: check the value returned by regulator_set_voltage()")
Cc: <stable@vger.kernel.org> # 4.8+
Suggested-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2017-02-17 08:04:26 +01:00
Laurent Pinchart
a4b10ccead drm: Constify drm_mode_config atomic helper private pointer
The drm_mode_config helper private field points to a structure of
function pointers that don't need to be modified at runtime. Make it
const.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Acked-by: Brian Starkey <brian.starkey@arm.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170102091613.6310-1-laurent.pinchart@ideasonboard.com
2017-02-12 12:05:23 +01:00
Shawn Guo
44b460cfe5 drm: imx: remove struct imx_drm_crtc and imx_drm_crtc_helper_funcs
With the vblank hooks in struct drm_crtc_funcs, we do not need to
maintain the CRTC specific vblank callbacks with struct
imx_drm_crtc_helper_funcs any more.  By moving the stuff that we
currently do in imx_drm_add_crtc(), like of_node setting and
drm_crtc_helper_add()/drm_crtc_init_with_planes() invoking, we can kill
things like struct imx_drm_crtc, imx_drm_crtc_helper_funcs and related
functions completely.

Functions ipu_enable_vblank() and ipu_disable_vblank() are moved around
without changes, only for saving the forward declarations.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: http://patchwork.freedesktop.org/patch/msgid/1486458995-31018-13-git-send-email-shawnguo@kernel.org
2017-02-09 16:07:24 +08:00
Shawn Guo
967dd48417 drm: remove drm_vblank_no_hw_counter assignment from driver code
Core code already makes drm_driver.get_vblank_counter hook optional by
letting drm_vblank_no_hw_counter be the default implementation for the
function hook.  So the drm_vblank_no_hw_counter assignment in the driver
code becomes redundant and can be removed now.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Mali DP Maintainers <malidp@foss.arm.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Xinliang Liu <z.liuxinliang@hisilicon.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: CK Hu <ck.hu@mediatek.com>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Mark Yao <mark.yao@rock-chips.com>
Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Jyri Sarha <jsarha@ti.com>
Cc: Eric Anholt <eric@anholt.net>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Alexey Brodkin <abrodkin@synopsys.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1486458995-31018-3-git-send-email-shawnguo@kernel.org
2017-02-07 21:43:55 +01:00
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
Laurent Pinchart
c608119dfd drm: bridge: dw-hdmi: Move IRQ and IO resource allocation to common code
There's no need to duplicate identical code in multiple drivers (two at
the moment, one more to come soon). Move it to the dw-hdmi core where it
can be shared. If resource allocation ever becomes device-specific later
we'll always have the option of splitting it out again.

While it at pass the platform device to the bind function to avoid
having to cast struct device to struct platform_device.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20170117082910.27023-8-laurent.pinchart+renesas@ideasonboard.com
2017-01-18 09:29:32 +05:30
Laurent Pinchart
ecaa98f1e6 drm: bridge: dw-hdmi: Remove unneeded arguments to bind/unbind functions
The master argument isn't used. The data argument, a void pointer, is
used by the bind function only where it's cast to a drm_device pointer,
which can easily be obtained from the encoder argument instead. Remove
them.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20170117082910.27023-3-laurent.pinchart+renesas@ideasonboard.com
2017-01-18 09:29:30 +05:30
Fabio Estevam
88017bd06e drm/imx: imx-tve: Remove unused variable
'ret' is never used in tve_enable/tve_disable(), so just
remove it.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1483544696-32707-1-git-send-email-fabio.estevam@nxp.com
2017-01-05 09:44:20 +01:00
Laurent Pinchart
4a878c03d5 drm: bridge: Detach bridge from encoder at encoder cleanup time
Most drivers that use bridges forgot to detach them at cleanup time.
Instead of fixing them one by one, detach the bridge in the core
drm_encoder_cleanup() function.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1481709550-29226-5-git-send-email-laurent.pinchart+renesas@ideasonboard.com
2016-12-18 16:32:49 +05:30
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
dbd4d5761e drm: Replace 'format->format' comparisons to just 'format' comparisons
Rather than compare the format u32s of two format infos, we can direclty
compare the format info pointers themselves. Noramlly all the ->format
pointers all point to somwehere in the big array, so this is a valid
way to test for equality.

Also drivers may want to point ->format at a private format info struct
instead (eg. for special compressed formats with extra planes), so
just comparing the pixel format values wouldn't necessaritly even work.
But comparing the pointers will also take care of that case.

@@
struct drm_framebuffer *a;
struct drm_framebuffer *b;
@@
(
- a->format->format != b->format->format
+ a->format != b->format
|
- a->format->format == b->format->format
+ a->format == b->format
)

@@
struct drm_plane_state *a;
struct drm_plane_state *b;
@@
(
- a->fb->format->format != b->fb->format->format
+ a->fb->format != b->fb->format
|
- a->fb->format->format == b->fb->format->format
+ a->fb->format == b->fb->format
)

@@
struct drm_crtc *crtc;
struct drm_framebuffer *x;
@@
(
- crtc->primary->fb->format->format != x->format->format
+ crtc->primary->fb->format != x->format
|
- x->format->format != crtc->primary->fb->format->format
+ x->format != crtc->primary->fb->format
)

@@
struct drm_mode_set *set;
@@
- set->fb->format->format != set->crtc->primary->fb->format->format
+ set->fb->format != set->crtc->primary->fb->format

Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1479498793-31021-35-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2016-12-15 14:55:34 +02:00
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
353c859899 drm: Replace drm_format_plane_cpp() with fb->format->cpp[]
Replace drm_format_plane_cpp(fb->pixel_format) with just
fb->format->cpp[]. Avoids the expensive format info lookup.

@@
struct drm_framebuffer *a;
struct drm_framebuffer b;
expression E;
@@
(
- drm_format_plane_cpp(a->pixel_format, E)
+ a->format->cpp[E]
|
- drm_format_plane_cpp(b.pixel_format, E)
+ b.format->cpp[E]
)

@@
struct drm_plane_state *a;
struct drm_plane_state b;
expression E;
@@
(
- drm_format_plane_cpp(a->fb->pixel_format, E)
+ a->fb->format->cpp[E]
|
- drm_format_plane_cpp(b.fb->pixel_format, E)
+ b.fb->format->cpp[E]
)

@@
struct drm_framebuffer *a;
identifier T;
expression E;
@@
  T = a->pixel_format
<+...
- drm_format_plane_cpp(T, E)
+ a->format->cpp[E]
...+>

@@
struct drm_framebuffer b;
identifier T;
expression E;
@@
  T = b.pixel_format
<+...
- drm_format_plane_cpp(T, E)
+ b.format->cpp[E]
...+>

v2: Rerun spatch due to code changes

Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1481751057-18123-1-git-send-email-ville.syrjala@linux.intel.com
2016-12-15 14:55:31 +02:00
Daniel Vetter
75e75cbd55 Merge remote-tracking branch 'airlied/drm-next' into drm-misc-next
Backmerge v4.9-rc8 to get at

commit e94bd1736f
Author: Michel Dänzer <michel.daenzer@amd.com>
Date:   Wed Nov 30 17:30:01 2016 +0900

drm: Don't call drm_for_each_crtc with a non-KMS driver

so I can apply Michel's follow-up patch.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2016-12-06 10:26:48 +01:00
Laurent Pinchart
949f08862d drm: Make the connector .detect() callback optional
Many drivers (21 to be exact) create connectors that are always
connected (for instance to an LVDS or DSI panel). Instead of forcing
them to implement a dummy .detect() handler, make the callback optional
and consider the connector as always connected in that case.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Jyri Sarha <jsarha@ti.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Vincent Abriou <vincent.abriou@st.com>
Acked-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
[seanpaul fixed small conflict in rcar-du/rcar_du_lvdscon.c]
Signed-off-by: Sean Paul <seanpaul@chromium.org>
2016-12-01 10:05:53 -05:00
Dave Airlie
6320745596 drm/virtio: fix busid in a different way, allocate more vbufs.
drm/qxl: various bugfixes and cleanups,
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Merge tag 'drm-qemu-20161121' of git://git.kraxel.org/linux into drm-next

drm/virtio: fix busid in a different way, allocate more vbufs.
drm/qxl: various bugfixes and cleanups,

* tag 'drm-qemu-20161121' of git://git.kraxel.org/linux: (224 commits)
  drm/virtio: allocate some extra bufs
  qxl: Allow resolution which are not multiple of 8
  qxl: Don't notify userspace when monitors config is unchanged
  qxl: Remove qxl_bo_init() return value
  qxl: Call qxl_gem_{init, fini}
  qxl: Add missing '\n' to qxl_io_log() call
  qxl: Remove unused prototype
  qxl: Mark some internal functions as static
  Revert "drm: virtio: reinstate drm_virtio_set_busid()"
  drm/virtio: fix busid regression
  drm: re-export drm_dev_set_unique
  Linux 4.9-rc5
  gp8psk: Fix DVB frontend attach
  gp8psk: fix gp8psk_usb_in_op() logic
  dvb-usb: move data_mutex to struct dvb_usb_device
  iio: maxim_thermocouple: detect invalid storage size in read()
  aoe: fix crash in page count manipulation
  lightnvm: invalid offset calculation for lba_shift
  Kbuild: enable -Wmaybe-uninitialized warnings by default
  pcmcia: fix return value of soc_pcmcia_regulator_set
  ...
2016-11-30 14:18:51 +10:00
Marek Vasut
782ea2a493 drm/imx: Switch to drm_fb_cma_prepare_fb() helper
Remove the common code from the driver and use the
drm_fb_cma_prepare_fb() helper instead.
Moveover, call the helper from prepare_fb() plane hook .

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161114100732.3446-2-marex@denx.de
Link: http://patchwork.freedesktop.org/patch/msgid/1476451342-146510-1-git-send-email-dvyukov@google.com
2016-11-15 08:25:06 +01:00
Dave Airlie
628d16555e imx-drm plane update cleanup, YUV formats
- request modeset if plane offsets changed, only the plane base
   address can be changed without disabling the plane IDMAC channel.
 - cleanup of plane atomic_update
 - remove unused ipu_cpmem_set_yuv_planar function
 - support YUV 4:4:4, 4:2:2, NV12 and NV16 plane formats
 - not only mask interrupts during irq init, also clear them
 - remove a legacy check from imx-ldb
 - add support to set the CSI downsizing bits
 - silence an obnoxious warning during modeset
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Merge tag 'imx-drm-next-2016-11-10' of git://git.pengutronix.de/git/pza/linux into drm-next

imx-drm plane update cleanup, YUV formats

- request modeset if plane offsets changed, only the plane base
  address can be changed without disabling the plane IDMAC channel.
- cleanup of plane atomic_update
- remove unused ipu_cpmem_set_yuv_planar function
- support YUV 4:4:4, 4:2:2, NV12 and NV16 plane formats
- not only mask interrupts during irq init, also clear them
- remove a legacy check from imx-ldb
- add support to set the CSI downsizing bits
- silence an obnoxious warning during modeset

* tag 'imx-drm-next-2016-11-10' of git://git.pengutronix.de/git/pza/linux:
  gpu: ipu-di: silence videomode logspam
  gpu: ipu-v3: add ipu_csi_set_downsize
  drm/imx: imx-ldb: remove unnecessary double disable check
  gpu: ipu-v3: initially clear all interrupts
  drm/imx: ipuv3-plane: add support for YUV 4:2:2 and 4:4:4, NV12, and NV16 formats
  gpu: ipu-v3: add YUV 4:4:4 support
  gpu: ipu-cpmem: remove unused ipu_cpmem_set_yuv_planar function
  drm/imx: ipuv3-plane: let drm_plane_state_to_ubo/vbo handle chroma subsampling other than 4:2:0
  drm/imx: ipuv3-plane: merge ipu_plane_atomic_set_base into atomic_update
  drm/imx: ipuv3-plane: request modeset if plane offsets changed
2016-11-11 09:31:27 +10:00
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
Lucas Stach
5ced937b7d drm/imx: disable planes before DC
If the DC clock is disabled before the attached IDMACs are properly
stopped the IDMACs may hang the IPU or even the whole system.

Make sure the IDMACs are in safe state by disabling the planes before
removal of the DC clock.

Also set the atomic parameter to false to stop calling the atomic_begin
hook, which does nothing useful as we immediately afterwards turn off
vblank interrupts and possibly send the pending vblank event.

Fixes: 33f1423530 (drm/imx: atomic phase 1: Use transitional atomic
                     CRTC and plane helpers)
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-11-09 10:35:50 +01:00
Gustavo Padovan
aee2586490 drm/imx: use drm_atomic_set_fence_for_plane() to set the fence
drm_atomic_set_fence_for_plane() is smart and won't overwrite
plane_state->fence if the user already set an explicit fence there.

Cc: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1478513013-3221-2-git-send-email-gustavo@padovan.org
2016-11-08 11:27:14 +01:00
Philipp Zabel
cdda2df7e0 drm/imx: imx-ldb: remove unnecessary double disable check
Since the atomic modeset conversion, this should not be an issue
anymore.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-11-07 15:17:46 +01:00
Philipp Zabel
eae13c9337 drm/imx: ipuv3-plane: add support for YUV 4:2:2 and 4:4:4, NV12, and NV16 formats
Hook up support for DRM_FORMAT_YUV422, DRM_FORMAT_YVU422,
DRM_FORMAT_YUV444, DRM_FORMAT_YVU444, DRM_FORMAT_NV12,
and DRM_FORMAT_NV16.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Liu Ying <gnuiyl@gmail.com>
2016-10-20 14:40:12 +02:00
Philipp Zabel
f2fa3536b2 drm/imx: ipuv3-plane: let drm_plane_state_to_ubo/vbo handle chroma subsampling other than 4:2:0
To support 4:2:2 or 4:4:4 chroma subsampling, divide the x/y offsets in
drm_plane_state_to_ubo/vbo only if necessary for the given pixel format.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Liu Ying <gnuiyl@gmail.com>
2016-10-20 14:39:54 +02:00
Philipp Zabel
3fd8b292ae drm/imx: ipuv3-plane: merge ipu_plane_atomic_set_base into atomic_update
ipu_plane_atomic_set_base is called from ipu_plane_atomic_update in two
different places, depending on whether drm_atomic_crtc_needs_modeset is
true. Also depending on the same condition, this function does two
different things.
This patch removes the indirection by merging the relevant parts into
ipu_plane_atomic_update, making the actual code flow more obvious as a
result. Also remove the duplicate planar format comment, which is
already found in ipu_plane_atomic_check.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Liu Ying <gnuiyl@gmail.com>
2016-10-20 14:39:53 +02:00
Philipp Zabel
181c9bfe4b drm/imx: ipuv3-plane: request modeset if plane offsets changed
If the framebuffer pixel format is planar YUV and unchanged, but the U
or V plane offsets change, do not return an error, but request a modeset
instead.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Liu Ying <gnuiyl@gmail.com>
2016-10-20 14:39:52 +02:00
Philipp Zabel
86126748cd drm/imx: ipuv3-plane: disable local alpha for planes without alpha channel
Without this patch, after enabling the overlay plane with an RGBA
framebuffer, switching to a framebuffer without alpha channel would
cause the plane to vanish, since the pixel local alpha is constant
zero in that case. Disable local alpha again when setting an opaque
framebuffer.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-10-20 14:39:51 +02:00
Philipp Zabel
5fb57ab328 drm/imx: ipuv3-plane: make sure x/y offsets are even in case of chroma subsampling
Odd x/y offsets are not allowed for horizontally/vertically chroma
subsampled planar YUV formats.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Liu Ying <gnuiyl@gmail.com>
2016-10-20 14:39:38 +02:00
Liu Ying
e73aca5184 drm/imx: ipuv3-plane: Access old u/vbo properly in ->atomic_check for YU12/YV12
Before accessing the u/v offset(aka, u/vbo for IPUv3) of the old plane state's
relevant fb, we should make sure the fb is in YU12 or YV12 pixel format(which
are the two YUV pixel formats we support only), otherwise, we are likely to
trigger BUG_ON() in drm_plane_state_to_u/vbo() since the fb's pixel format is
probably not YU12 or YV12.

Link: https://bugs.freedesktop.org/show_bug.cgi?id=98150
Fixes: c6c1f9bc79 ("drm/imx: Add active plane reconfiguration support")
Cc: stable@vger.kernel.org # 4.8
Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-10-18 11:02:12 +02:00
Dan Carpenter
8cca354816 drm/imx: drm_dev_alloc() returns error pointers
We are checking for NULL here, when we should be checking for error
pointers.

Fixes: 54db5decce ("drm/imx: drop deprecated load/unload drm_driver ops")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-10-18 11:02:11 +02:00
Liu Ying
81d553545a drm/imx: ipuv3-plane: Skip setting u/vbo only when we don't need modeset
We added active plane reconfiguration support by forcing a full modeset
operation.  So, looking at old_plane_state->fb to determine whether we need
to set u/v offset(aka, u/vbo for IPUv3) in ipu_plane_atomic_set_base()
or not is no more correct.  Instead, we should do that only when we don't
need modeset.

Fixes: c6c1f9bc79 ("drm/imx: Add active plane reconfiguration support")
Cc: stable@vger.kernel.org # 4.8
Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-10-18 11:02:11 +02:00
Liu Ying
43daa01323 drm/imx: ipuv3-plane: Switch EBA buffer only when we don't need modeset
We added active plane reconfiguration support by forcing a full modeset
operation.  So, looking at old_plane_state->fb to determine whether we need to
switch EBA buffer(for hardware double buffering) in ipu_plane_atomic_set_base()
or not is no more correct.  Instead, we should do that only when we don't need
modeset, otherwise, we initialize the two EBA buffers with the buffer address.

Fixes: c6c1f9bc79 ("drm/imx: Add active plane reconfiguration support")
Cc: stable@vger.kernel.org # 4.8
Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-10-18 11:02:10 +02:00
Arnd Bergmann
3e3affe549 drm/imx: hide an unused label
The imx_drm_bind function causes a warning in linux-next when
CONFIG_DRM_FBDEV_EMULATION is not set:

drivers/gpu/drm/imx/imx-drm-core.c: In function 'imx_drm_bind':
drivers/gpu/drm/imx/imx-drm-core.c:441:1: error: label 'err_unbind' defined but not used [-Werror=unused-label]

I don't understand why the warning only showed up now, as the
code has not been modified recently, but there is an obvious
fix in adding another #if for the symbol.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: c1ff5a7aa3 ("drm/imx: Remove local fbdev emulation Kconfig option")
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-10-17 08:21:53 +02:00
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
Lucas Stach
a474478642 drm/imx: fix crtc vblank state regression
The atomic conversion lost the notification to let the DRM core
know about the current state of the CRTC vblank interrupts. This
regressed the ability of the core to reject page flip attempts
on currently disabled CRTCs. Add back the notifications.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-30 08:35:22 +02:00
Philipp Zabel
c15d493cb6 drm/imx: parallel-display: detach bridge or panel on unbind
Don't leave any bridge or panel attached to a stale driver instance
when unbinding, to allow reattachment on a rebind.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-29 16:30:48 +02:00
Philipp Zabel
60203c90bf drm/imx: imx-ldb: detach bridge on unbind
Don't leave the bridge attached to a stale driver instance when
unbinding, to allow reattachment on a rebind.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-29 16:30:48 +02:00
Lucas Stach
b1318d50a0 drm/imx: imx-ldb: detach panel on unbind
Make sure to leave a clean panel state behind and allow to
properly attach to the panel again on a rebind.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-29 16:30:48 +02:00
Liu Ying
c6c1f9bc79 drm/imx: Add active plane reconfiguration support
We don't support configuring active plane on-the-fly for imx-drm.
The relevant CRTC should be disabled before the plane configuration.
Of course, the plane itself should be disabled as well.
This patch adds active plane reconfiguration support by forcing CRTC
mode change and disabling-enabling plane in plane's ->atomic_update
callback.

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: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Tested-by: Peter Senna Tschudin <peter.senna@gmail.com>
Tested-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-29 16:21:18 +02:00
Lucas Stach
a40e65b764 drm/imx: add exclusive fence to plane state
This allows the atomic helper to wait on them, instead of open-coding
the same in the imx-drm driver.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-29 12:45:05 +02:00
Lucas Stach
df4b2233ab drm/imx: fold ipu_plane_disable into ipu_disable_plane
ipu_disable_plane is the only left caller of ipu_plane_disable.
Having those 2 similar named functions is confusing and superfluous,
so fold them into 1.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-29 12:45:05 +02:00
Lucas Stach
8e3b16e211 drm/imx: don't destroy mode objects manually on driver unbind
Instead let drm_mode_config_cleanup() do the work when taking down
the master device. This requires all cleanup functions to be
properly hooked up to the mode object .destroy callback.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-29 12:45:05 +02:00
Lucas Stach
54db5decce drm/imx: drop deprecated load/unload drm_driver ops
Drop the load/unload driver ops, as they are deprecated because of their
inherent races, with devices being visible to userspace before they are
fully initialized.

Move this code into the driver bind/unbind routines bracketed by the
proper drm_dev_alloc/register and drm_dev_unregister/unref calls.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-29 12:45:05 +02:00
Lucas Stach
73cde76a61 drm/imx: don't call disable_plane in plane destroy path
When the destroy path is called the plane should already be
disabled. If not, this is a core bug and should not be worked
around in the driver.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-29 12:45:05 +02:00
Liu Ying
1780999ced drm/imx: Add active plane reconfiguration support
We don't support configuring active plane on-the-fly for imx-drm.
The relevant CRTC should be disabled before the plane configuration.
Of course, the plane itself should be disabled as well.

This patch adds active plane reconfiguration support by forcing CRTC
mode change in plane's ->atomic_check callback so that the CRTC
will be disabled before the plane configuration.

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: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-29 12:45:05 +02:00
Liu Ying
5f4df0c769 drm/imx: Use DRM_PLANE_COMMIT_NO_DISABLE_AFTER_MODESET flag
The IPUv3 display controller behind imx-drm needs all planes of
a CRTC be disabled when the CRTC is disabled.
The DRM_PLANE_COMMIT_NO_DISABLE_AFTER_MODESET flag reflects this
hardware requirement.  Let's use the flag for imx-drm.

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: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-29 12:45:05 +02:00
Liu Ying
8cc17b59b0 drm/imx: ipuv3-crtc: Use the callback ->atomic_disable instead of ->disable
Now that the drm atomic core supports the callback ->atomic_disable,
we may replace the legacy one ->disable with it.

Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
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: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-29 12:45:05 +02:00
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
Dave Airlie
f8725ad1da Merge tag 'topic/drm-misc-2016-08-12' of git://anongit.freedesktop.org/drm-intel into drm-next
- more fence destaging and cleanup (Gustavo&Sumit)
- DRIVER_LEGACY to untangle from DRIVER_MODESET
- drm_mm refactor (Chris)
- fbdev-less compile fies
- clipped plane src/dst rects (Ville)
- + a few mediatek patches that build on top of that (Bibby+Daniel)
- small stuff all over really

* tag 'topic/drm-misc-2016-08-12' of git://anongit.freedesktop.org/drm-intel: (43 commits)
  dma-buf/fence: kerneldoc: remove spurious section header
  dma-buf/fence: kerneldoc: remove unused struct members
  Revert "gpu: drm: omapdrm: dss-of: add missing of_node_put after calling of_parse_phandle"
  drm: Protect fb_defio in drivers with CONFIG_KMS_FBDEV_EMULATION
  drm/radeon|amgpu: Make fbdev emulation optional
  drm/vmwgfx: select CONFIG_FB
  drm: Remove superflous linux/fb.h includes
  drm/fb-helper: Add a dummy remove_conflicting_framebuffers
  dma-buf/sync_file: only enable fence signalling on poll()
  Documentation: add doc for sync_file_get_fence()
  dma-buf/sync_file: add sync_file_get_fence()
  dma-buf/sync_file: refactor fence storage in struct sync_file
  dma-buf/fence-array: add fence_is_array()
  drm/dp_helper: Rate limit timeout errors from drm_dp_i2c_do_msg()
  drm/dp_helper: Print first error received on failure in drm_dp_dpcd_access()
  drm: Add ratelimited versions of the DRM_DEBUG* macros
  drm: Make sure drm_vblank_no_hw_counter isn't abused
  drm/mediatek: Fix mtk_atomic_complete for runtime_pm
  drm/mediatek: plane: Use FB's format's cpp to compute x offset
  drm/mediatek: plane: Merge mtk_plane_enable into mtk_plane_atomic_update
  ...
2016-08-15 16:46:36 +10:00
Daniel Vetter
b1116f645c drm: Remove superflous linux/fb.h includes
Everyone who uses the fbdev emulation helpers doesn't need to include
fb.h directly. Remove it.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1470847958-28465-3-git-send-email-daniel.vetter@ffwll.ch
2016-08-12 10:41:39 +02:00
Peter Senna Tschudin
dc80d70388 drm/imx-ldb: Add support to drm-bridge
Add support to attach a drm_bridge to imx-ldb in addition to
existing support to attach a LVDS panel.

This patch does a simple code refactoring by moving code
from for_each_child_of_node iterator to a new function named
imx_ldb_panel_ddc(). This was necessary to allow the panel ddc
code to run only when the imx_ldb is not attached to a bridge.

Cc: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Rob Herring <robh@kernel.org>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Thierry Reding <treding@nvidia.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Peter Senna Tschudin <peter.senna@collabora.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-11 11:34:22 +02:00
Philipp Zabel
3a2ad5028c drm/imx: imx-ldb: use encoder atomic_mode_set callback
Using atomic_mode_set instead of mode_set allows to access crtc
and connector states in addition to the modes. This allows to
remove the connector list walk.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-08 11:44:20 +02:00
Liu Ying
3ec2e506f9 drm/imx: Remove imx_drm_handle_vblank()
imx_drm_handle_vblank() is just a simple wrapper of drm_crtc_handle_vblank()
without doing any thing fancy - drm_crtc_handle_vblank() can be called
directly.  So, let's remove the wrapper.

Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-08 11:44:20 +02:00
Liu Ying
8892cc899e drm/imx: Remove imx_drm_crtc_id()
There is no one calling imx_drm_crtc_id() and it is just a simple
wrapper of drm_crtc_index() without doing any thing fancy - the
drivers may call drm_crtc_index() directly.  So, let's remove the
wrapper.

Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-08 11:44:20 +02:00
Liu Ying
2fd911bc5b drm/imx: Remove imx_drm_crtc_vblank_get/_put()
There is no one calling imx_drm_crtc_vblank_get/_put() and
they are just two simple wrappers of drm_crtc_vblank_get/_put()
without doing any thing fancy - the drivers may call
drm_crtc_vblank_get/_put() directly.  So, let's remove the two
wrappers.

Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-08 11:44:20 +02:00
Lothar Waßmann
fafc79ef2e drm/imx: convey the pixelclk-active and de-active flags from DT to the ipu-di driver
The 'de-active' and 'pixelclk-active' DT properties are evaluated
by of_parse_display_timing() called from  of_get_drm_display_mode(),
but later lost in the conversion from videomode.flags to
drm_display_mode.flags.
Enhance of_get_drm_display_mode() to also return the bus flags in a
separate variable, so that they can be passed on to the ipu-di
driver.

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-08-08 11:44:20 +02:00
Dave Airlie
1cf915d305 imx-drm ldb mode set fix
- fix imx-ldb mode setting, which was broken by commit 49f98bc4d4 ("drm/imx:
   store internal bus configuration in crtc state")
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Merge tag 'imx-drm-fixes-2016-07-27' of git://git.pengutronix.de/git/pza/linux into drm-next

imx-drm ldb mode set fix

- fix imx-ldb mode setting, which was broken by commit 49f98bc4d4 ("drm/imx:
  store internal bus configuration in crtc state")

* tag 'imx-drm-fixes-2016-07-27' of git://git.pengutronix.de/git/pza/linux:
  drm/imx: imx-ldb: do not try to dereference crtc->state->state in encoder mode_set
2016-07-30 05:45:30 +10:00
Philipp Zabel
ff615eed11 drm/imx: imx-ldb: do not try to dereference crtc->state->state in encoder mode_set
The code in imx_ldb_encoder_mode_set crashes with a NULL pointer
dereference trying to access crtc->state->state, which was previously
cleared by drm_atomic_helper_swap_state:

    Unable to handle kernel NULL pointer dereference at virtual address 00000010
    pgd = ae08c000
    [00000010] *pgd=3e00e831, *pte=00000000, *ppte=00000000
    Internal error: Oops: 17 [#1] PREEMPT SMP ARM
    Modules linked in:
    CPU: 1 PID: 102 Comm: kmsfb-manage Not tainted 4.7.0-rc5+ #232
    Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree)
    task: ae058c40 ti: ae04e000 task.ti: ae04e000
    PC is at imx_ldb_encoder_mode_set+0x138/0x2f8
    LR is at 0xae881818
    pc : [<8051a8c8>]    lr : [<ae881818>]    psr: 600f0013
    sp : ae04fc70  ip : ae04fbb0  fp : ae04fcbc
    r10: ae8ea018  r9 : 00000000  r8 : ae246418
    r7 : ae8ea010  r6 : ae8ea308  r5 : 00000000  r4 : 00000000
    r3 : 00000000  r2 : 00000000  r1 : 00000110  r0 : 00000000
    Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
    Control: 10c5387d  Table: 3e08c04a  DAC: 00000051
    Process kmsfb-manage (pid: 102, stack limit = 0xae04e210)
    Stack: (0xae04fc70 to 0xae050000)
    fc60:                                     043ce660 00000001 0000009e 043ce660
    fc80: 00000002 00000000 00000000 af75cf50 00001009 ae23f440 00000001 ae246418
    fca0: 8155a210 ae8ea308 8093c364 ae2464e0 ae04fcec ae04fcc0 804ef350 8051a79c
    fcc0: 00000004 00000004 ae23f440 af3f9000 ae881818 8155a210 af1af200 ae8ea020
    fce0: ae04fd1c ae04fcf0 80519124 804ef060 ae04fd34 00000000 00000000 00000000
    fd00: ae881818 ae23f440 80d4ec8c 00000000 ae04fd34 ae04fd20 804f00b4 80518fac
    fd20: ae23f440 00000000 ae04fd54 ae04fd38 804f2190 804f0074 ae23f440 af3f9000
    fd40: ae04fdd4 ae881818 ae04fd6c ae04fd58 80516390 804f20f4 ae23f440 00000000
    fd60: ae04fd8c ae04fd70 804f26f4 80516348 ae23a000 ae881818 00000001 af3f9000
    fd80: ae04fdac ae04fd90 80502c58 804f2678 ae04fe50 ae23f400 00000001 af3f9000
    fda0: ae04fe1c ae04fdb0 80507a1c 80502bf8 ae23a000 ae058c40 af1af200 ae23f400
    fdc0: ae23a000 af3f9000 ae881818 ae23a00c 80176c7c ae23a000 ae881818 af1af200
    fde0: 00000000 00000000 ae23f400 00000001 ae04fe1c 00000051 ae04fe50 8155a210
    fe00: 80932060 c06864a2 af3f9000 ae246200 ae04fefc ae04fe20 804f9718 805074e8
    fe20: ae04feac ae04fe30 80177360 8017631c 805074dc 00000068 00000068 00000062
    fe40: 00000068 000000a2 ae04fe50 7ef29688 7ef29c40 00000000 00000001 00000018
    fe60: 00000026 00000000 00000000 00000000 00000001 000115bc 05010500 05a0059f
    fe80: 03200000 03360321 00000337 0000003c 00000000 00000040 30383231 30303878
    fea0: 00000000 00000000 00000000 00000000 00000000 00000000 00004000 aea6a140
    fec0: 00000000 80d77b71 00000000 80283110 600f0013 7ef29688 af342bb0 ae250b40
    fee0: 80275440 00000003 ae04e000 00000000 ae04ff7c ae04ff00 80274ac8 804f957c
    ff00: 80283128 80179030 00000000 00000000 80282fd8 ae1e0000 0000003d aea6a1d0
    ff20: 00000002 00000003 00004000 007f8c60 c06864a2 7ef29688 ae04e000 00000000
    ff40: ae04ff6c ae04ff50 80283260 80282fe4 00017050 ae250b41 00000003 ae250b40
    ff60: c06864a2 7ef29688 ae04e000 00000000 ae04ffa4 ae04ff80 80275440 80274a20
    ff80: 00017050 00000001 007f8c60 00000036 801088a4 ae04e000 00000000 ae04ffa8
    ffa0: 80108700 80275408 00017050 00000001 00000003 c06864a2 7ef29688 000115bc
    ffc0: 00017050 00000001 007f8c60 00000036 00000003 00000000 00000026 00000018
    ffe0: 00016f28 7ef29684 0000b7d9 76e4a1e6 400f0030 00000003 3ff7e861 3ff7ec61
    Backtrace:
    [<8051a790>] (imx_ldb_encoder_mode_set) from [<804ef350>] (drm_atomic_helper_commit_modeset_disables+0x2fc/0x3f0)
     r10:ae2464e0 r9:8093c364 r8:ae8ea308 r7:8155a210 r6:ae246418 r5:00000001
     r4:ae23f440
    [<804ef054>] (drm_atomic_helper_commit_modeset_disables) from [<80519124>] (imx_drm_atomic_commit_tail+0x184/0x1e0)
     r10:ae8ea020 r9:af1af200 r8:8155a210 r7:ae881818 r6:af3f9000 r5:ae23f440
     r4:00000004 r3:00000004
    [<80518fa0>] (imx_drm_atomic_commit_tail) from [<804f00b4>] (commit_tail+0x4c/0x68)
     r6:00000000 r5:80d4ec8c r4:ae23f440
    [<804f0068>] (commit_tail) from [<804f2190>] (drm_atomic_helper_commit+0xa8/0xd4)
     r5:00000000 r4:ae23f440
    [<804f20e8>] (drm_atomic_helper_commit) from [<80516390>] (drm_atomic_commit+0x54/0x74)
     r7:ae881818 r6:ae04fdd4 r5:af3f9000 r4:ae23f440
    [<8051633c>] (drm_atomic_commit) from [<804f26f4>] (drm_atomic_helper_set_config+0x88/0xac)
     r5:00000000 r4:ae23f440
    [<804f266c>] (drm_atomic_helper_set_config) from [<80502c58>] (drm_mode_set_config_internal+0x6c/0xf4)
     r7:af3f9000 r6:00000001 r5:ae881818 r4:ae23a000
    [<80502bec>] (drm_mode_set_config_internal) from [<80507a1c>] (drm_mode_setcrtc+0x540/0x5b8)
     r7:af3f9000 r6:00000001 r5:ae23f400 r4:ae04fe50
    [<805074dc>] (drm_mode_setcrtc) from [<804f9718>] (drm_ioctl+0x1a8/0x46c)
     r10:ae246200 r9:af3f9000 r8:c06864a2 r7:80932060 r6:8155a210 r5:ae04fe50
     r4:00000051
    [<804f9570>] (drm_ioctl) from [<80274ac8>] (do_vfs_ioctl+0xb4/0x9e8)
     r10:00000000 r9:ae04e000 r8:00000003 r7:80275440 r6:ae250b40 r5:af342bb0
     r4:7ef29688
    [<80274a14>] (do_vfs_ioctl) from [<80275440>] (SyS_ioctl+0x44/0x6c)
     r10:00000000 r9:ae04e000 r8:7ef29688 r7:c06864a2 r6:ae250b40 r5:00000003
     r4:ae250b41
    [<802753fc>] (SyS_ioctl) from [<80108700>] (ret_fast_syscall+0x0/0x1c)
     r9:ae04e000 r8:801088a4 r7:00000036 r6:007f8c60 r5:00000001 r4:00017050
    Code: 1a000018 e596e034 e59e3368 e59331bc (e5930010)
    ---[ end trace 464e7d3c7f4b9706 ]---

Instead of trying to walk only the connectors in atomic state to which we
don't have access, just walk all connectors to find one connected to the
current encoder and containing a bus_format description.

Fixes: 49f98bc4d4 ("drm/imx: store internal bus configuration in crtc state")
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Liu Ying <gnuiyl@gmail.com>
2016-07-27 18:47:52 +02:00
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
Tobias Jakobi
400cc2de37 drm/imx: make fbdev support really optional
Currently enabling Freescale i.MX DRM support automatically pulls
in fbdev dependency. However this dep is unnecessary since
DRM core already handles this for us (DRM_FBDEV_EMULATION).

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/1468586897-32298-8-git-send-email-tjakobi@math.uni-bielefeld.de
2016-07-18 09:11:36 +02:00
Philipp Zabel
f140b0cc77 drm/imx: parallel-display: add bridge support
Add support for bridge chips connected externally to the i.MX
DISP0/DISP1 DPI interfaces.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-07-14 11:18:46 +02:00
Lothar Waßmann
76ecd9c9fb drm/imx: parallel-display: check return code from of_get_drm_display_mode()
of_get_drm_display_mode() may fail. Check its return code and bail out
on error.

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-07-12 18:26:06 +02:00
Fabio Estevam
4f7a512913 drm/imx: imx-tve: fix the error message
The error message should say "hsync" instead of "vsync" as
we have just checked the "fsl,hsync-pin" property.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-07-12 18:24:31 +02:00
Fabio Estevam
ae8308b236 drm/imx: imx-tve: remove unneeded 'or' operation
There is no need for doing an extra 'or' operation when reading
the return value from of_property_read_u32().

Just do a simple read instead.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-07-12 18:24:31 +02:00
Fabio Estevam
deb65870b5 drm/imx: imx-tve: check the value returned by regulator_set_voltage()
regulator_set_voltage() may fail, so we better check its return value
and propagate it in the case of error.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-07-12 18:24:30 +02:00
Lucas Stach
7075ba7942 drm/imx: imx-ldb: check return code on panel attach
Check the return code on panel attach. Avoids a kernel crash later
on if the attach failed.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-07-12 18:24:29 +02:00
Philipp Zabel
3df0739052 drm/imx: turn remaining container_of macros into inline functions
This allows the compiler to do type checking.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-07-12 18:24:29 +02:00
Philipp Zabel
49f98bc4d4 drm/imx: store internal bus configuration in crtc state
The internal bus configuration is imx-drm specific crtc state. Store it
in imx_crtc_state and let the encoder atomic_check callbacks determine
bus_flags, bus_format and the sync pins, possibly taking into account
the mode and the connector display info.
The custom imx_drm_encoder structure can be replaced again with
drm_encoder.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-07-12 18:24:28 +02:00
Philipp Zabel
e41c5c2411 drm/imx: remove empty mode_set encoder callbacks
With atomic modeset support, these callbacks are optional.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-07-12 18:24:27 +02:00
Liu Ying
8535c0220e drm/imx: atomic phase 3 step 3: Advertise DRIVER_ATOMIC
With all the beforehand phases and steps done, we can adverstise DRIVER_ATOMIC.

Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-07-12 18:24:16 +02:00
Liu Ying
f6e396e509 drm/imx: atomic phase 3 step 2: Legacy callback fixups
Now that we can use atomic configurations, all the legacy callbacks
of CRTCs, encoders and connectors can be switched to the atomic version.
For the imx-ldb driver, there is a clock parent setting mismatch bewteen
->enable and ->disable after the switch, so a fixup is added.  For the
imx-tve driver, since the encoder's callback ->dpms is replaced by
->disable, we need to move the setting for the IPU_CLK_EN bit(in register
TVE_COM_CONF_REG) from ->enable/->disable to ->mode_set, otherwise, the
relevant CRTC cannot be disabled correctly with a warning on DC stop timeout.

Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-07-12 18:24:12 +02:00
Liu Ying
5f2f911578 drm/imx: atomic phase 3 step 1: Use atomic configuration
Replacing drm_crtc_helper_set_config() by drm_atomic_helper_set_config()
and converting the suspend/resume operations to atomic make us be able
to use atomic configurations.  All of these allow us to remove the
crtc_funcs->mode_set callback as it is no longer used.  Also, change
the plane_funcs->update/disable_plane callbacks from the transitional
version to the atomic version.  Furthermore, switching to the pure atomic
version of set_config callback means that we may implement CRTC/plane
atomic checks by using the new CRTC/plane states instead of the legacy
ones and we may remove the private ipu_crtc->enabled state which was left
there for the transitional atomic helpers in phase 1.  Page flip is also
switched to the atomic version.  Last, the legacy function
drm_helper_disable_unused_functions() is removed from ->load in order
not to confuse the atomic driver.

Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-07-12 18:24:03 +02:00
Liu Ying
032003c5cd drm/imx: Remove encoders' ->prepare callbacks
The main task of imx encoders' ->prepare callbacks is to set bus_format,
bus_flags, di_vsync_pin and di_hsync_pin.  We may create a structure named
imx_encoder to cache them.  The atomic encoder callback ->disable may
replace ->prepare later, so let's remove ->prepare.

Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-07-12 18:23:58 +02:00
Liu Ying
ae2531ab70 drm/imx: atomic phase 2 step 2: Track plane_state->fb correctly in ->page_flip
Use drm_atomic_set_fb_for_plane() in the legacy ->page_flip path to track
the pointer plane_state->fb correctly.

Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2016-07-12 18:23:55 +02:00