Commit Graph

167 Commits

Author SHA1 Message Date
Liviu Dudau
d664b851eb drm/arm/hdlcd: Reject atomic commits that disable only the plane
The HDLCD engine needs an active plane while the CRTC is active, as
it will start scanning out data from HDLCD_REG_FB_BASE once it gets
enabled. Make sure that the only available plane doesn't get disabled
while the CRTC remains active, as this will scanout invalid data.

Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-07-31 16:31:50 +01:00
Laurent Pinchart
9fd466f54f drm: arm: hdlcd: Use drm_atomic_helper_shutdown() to disable planes on removal
The plane cleanup handler currently calls drm_plane_helper_disable(),
which is a legacy helper function. Replace it with a call to
drm_atomic_helper_shutdown() at removal time. The plane .destroy()
handler now consisting only of a call to drm_plane_cleanup(), replace it
with direct calls to that function.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-07-31 16:31:50 +01:00
Laurent Pinchart
8df24d57d3 drm: arm: hdlcd: Don't destroy plane manually in hdlcd_setup_crtc()
The top-level error handler calls drm_mode_config_cleanup() which will
destroy all planes. There's no need to destroy them manually in lower
error handlers.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-07-31 16:31:50 +01:00
Noralf Trønnes
1785dbc412 drm/arm/hdlcd: Use drm_fb_cma_fbdev_init/fini()
Use drm_fb_cma_fbdev_init() and drm_fb_cma_fbdev_fini() which relies on
the fact that drm_device holds a pointer to the drm_fb_helper structure.
This means that the driver doesn't have to keep track of that.
Also use the drm_fb_helper functions directly.

Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Brian Starkey <brian.starkey@arm.com>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-07-31 16:31:50 +01:00
Noralf Trønnes
5c7e5a22c1 drm/arm/hdlcd: Use drm_mode_config_helper_suspend/resume()
Replace driver's code with the generic helpers that do the same thing
including the NULL check.

Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Brian Starkey <brian.starkey@arm.com>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-07-31 16:31:49 +01:00
Alexandru Gheorghe
2e012e76ad drm: mali-dp: Set encoder possible_clones
Set possible_clones field to report that the writeback connector and
the one driving the display could be enabled at the same time.

Signed-off-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@arm.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-07-23 15:42:17 +01:00
Alexandru Gheorghe
7749a57a28 drm: mali-dp: Report writeback connector as connected
Older version of this patch series reported writeback as disconnected
to avoid confusing userspace not aware of writeback connectors.
However, the version that got merged uses a special cap
(DRM_CLIENT_CAP_WRITEBACK_CONNECTORS) for this purpose.

This helps us avoid some special handling of writeback connector
in drm_helper_probe_single_connector_modes, see [1].

https://lists.freedesktop.org/archives/dri-devel/2018-July/183144.html

Signed-off-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@arm.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-07-23 15:38:46 +01:00
Dave Airlie
4da1d4c751 Merge commit 'refs/for-upstream/mali-dp' of git://linux-arm.org/linux-ld into drm-next
"mali-dp driver changes for drm-next, includes the driver implementation
for writeback, improvements for power management handling in the driver
and a debugfs entry for reporting possible internal errors. Please pull
at your earliest convenience.

Boris Brezillon is also interested in this pull as he is going to change
slightly the parameter for the writeback connector's atomic_commit() and
he needs to fix the mali-dp driver in his series."

Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180705144408.GH15340@e110455-lin.cambridge.arm.com
2018-07-06 10:02:13 +10:00
Dave Airlie
a1c3b49523 drm-misc-next for 4.19:
UAPI Changes:
 v3d: add fourcc modicfier for fourcc for the Broadcom UIF format (Eric Anholt)
 
 Cross-subsystem Changes:
 console/fbcon: Add support for deferred console takeover (Hans de Goede)
 
 Core Changes:
 dma-fence clean up, improvements and docs (Daniel Vetter)
 add mask function for crtc, plane, encoder and connector DRM objects(Ville Syrjälä)
 
 Driver Changes:
 pl111: add Nomadik LCDC variant (Linus Walleij)
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Merge tag 'drm-misc-next-2018-07-04' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for 4.19:

UAPI Changes:
v3d: add fourcc modicfier for fourcc for the Broadcom UIF format (Eric Anholt)

Cross-subsystem Changes:
console/fbcon: Add support for deferred console takeover (Hans de Goede)

Core Changes:
dma-fence clean up, improvements and docs (Daniel Vetter)
add mask function for crtc, plane, encoder and connector DRM objects(Ville Syrjälä)

Driver Changes:
pl111: add Nomadik LCDC variant (Linus Walleij)

Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180704234641.GA3981@juma
2018-07-06 10:01:56 +10:00
Ayan Kumar Halder
e368fc75c1 drm/arm/malidp: Added the late system pm functions
malidp_pm_suspend_late checks if the runtime status is not suspended
and if so, invokes malidp_runtime_pm_suspend which disables the
display engine/core interrupts and the clocks. It sets the runtime status
as suspended.

The difference between suspend() and suspend_late() is as follows:-
1. suspend() makes the device quiescent. In our case, we invoke the DRM
helper which disables the CRTC. This would have invoked runtime pm
suspend but the system suspend process disables runtime pm.
2. suspend_late() It continues the suspend operations of the drm device
which was started by suspend(). In our case, it performs the same functionality
as runtime_suspend().

The complimentary functions are resume() and resume_early(). In the case of
resume_early(), we invoke malidp_runtime_pm_resume() which enables the clocks
and the interrupts. It sets the runtime status as active. If the device was
in runtime suspend mode before system suspend was called, pm_runtime_work()
will put the device back in runtime suspended mode( after the complete system
has been resumed).

Signed-off-by: Ayan Kumar Halder <ayan.halder@arm.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-07-05 15:19:10 +01:00
Ayan Kumar Halder
f877006d5d drm/arm/malidp: Set the output_depth register in modeset
One needs to store the value of the OUTPUT_DEPTH that one has parsed from
device tree, so that it can be restored on system resume. This value is
set in the modeset function as this gets reset when the system suspends.

Signed-off-by: Ayan Kumar Halder <ayan.halder@arm.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-07-05 15:19:08 +01:00
Ayan Kumar Halder
fbcc454e8a drm/arm/malidp: Enable/disable interrupts in runtime pm
Display and scaling engine interrupts need to be disabled when the
runtime pm invokes malidp_runtime_pm_suspend(). Conversely, they
need to be enabled in malidp_runtime_pm_resume().

This patch depends on:
https://lkml.org/lkml/2017/5/15/695

Reported-by: Alexandru-Cosmin Gheorghe <Alexandru-Cosmin.Gheorghe@arm.com>
Signed-off-by: Alexandru-Cosmin Gheorghe <Alexandru-Cosmin.Gheorghe@arm.com>
Signed-off-by: Ayan Kumar Halder <ayan.halder@arm.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-07-05 15:19:08 +01:00
Ayan Kumar Halder
ff8fc26a76 drm/arm/malidp: Split malidp interrupt initialization functions.
Malidp uses two interrupts ie 1. se_irq - used for memory writeback.
 and 2. de_irq - used for display output.
Extract the hardware initialization part from malidp interrupt registration
ie (malidp_de_irq_init()/ malidp_se_irq_init()) into a separate function
(ie malidp_de_irq_hw_init()/malidp_se_irq_hw_init())
which will be later invoked from runtime_pm_resume function when it needs
to re-enable the interrupts.

Signed-off-by: Ayan Kumar Halder <ayan.halder@arm.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-07-05 15:19:07 +01:00
Ayan Kumar Halder
62862cfbb1 drm/arm/malidp: Modified the prototype of malidp irq de-initializers
Malidp uses two interrupts ie 1. se_irq - used for memory writeback.
 and 2. de_irq - used for display output.
'struct drm_device' is being replaced with 'struct malidp_hw_device'
as the function argument. The reason being the dependency of
malidp_de_irq_fini on 'struct drm_device' needs to be removed so as to
enable it to call from functions which receives 'struct malidp_hw_device'
as argument. Furthermore, there is no way to retrieve 'struct drm_device'
from 'struct malidp_hw_device'.

Signed-off-by: Ayan Kumar Halder <ayan.halder@arm.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-07-05 15:19:06 +01:00
Alexandru Gheorghe
613c5c7fc8 drm: mali-dp: Add debugfs file for reporting internal errors
Status register contains a lot of bits for reporting internal errors
inside Mali DP. Currently, we just silently ignore all of the errors,
that doesn't help when we are investigating different bugs, especially
on the FPGA models which have a lot of constraints, so we could easily
end up in AXI or underrun errors.

Add a new file called debug that contains an aggregate of the
errors reported by the Mali DP hardware.

E.g:
[root@alarm ~]# cat /sys/kernel/debug/dri/1/debug
[DE] num_errors : 167
[DE] last_error_status  : 0x00000001
[DE] last_error_vblank : 385
[SE] num_errors : 3
[SE] last_error_status  : 0x00e23001
[SE] last_error_vblank : 201

Changes since v2:
- Add lock to protect the errors stats.
- Add possibility to reset the error stats by writing anything to the
  debug file.

Signed-off-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@arm.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-07-05 15:19:05 +01:00
Liviu Dudau
0735cfdf0a drm/mali-dp: Improve writeback handling for DP500.
Mali DP500 operates in continuous writeback mode (writes frame content
until stopped) and it needs special handling in order to behave like
a one-shot writeback engine. The original state machine added for DP500
was a bit fragile, as it did not handle correctly cases where a new
atomic commit was in progress when the SE IRQ happens and it would
commit some partial updates.

Improve the handling by adding a parameter to the set_config_valid()
function to clear the config valid bit in hardware before starting a
new commit and by introducing a MW_RESTART state in the writeback
state machine to cater for the case where a new writeback commit
gets submitted while the last one is still being active.

Reported-by: Brian Starkey <brian.starkey@arm.com>
Reviewed-by: Brian Starkey <brian.starkey@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-07-05 15:19:04 +01:00
Brian Starkey
8cbc5caf36 drm: mali-dp: Add writeback connector
Mali-DP has a memory writeback engine which can be used to write the
composition result to a memory buffer. Expose this functionality as a
DRM writeback connector on supported hardware.

Changes since v1:
 Daniel Vetter:
 - Don't require a modeset when writeback routing changes
 - Make writeback connector always disconnected

Changes since v2:
 - Rebase onto new drm_writeback_connector
 - Add reset callback, allocating subclassed state
 Daniel Vetter:
 - Squash out-fence support into this commit
 Gustavo Padovan:
 - Don't signal fence directly from driver (and drop malidp_mw_job)

Changes since v3:
 - Modifications to fit with Mali-DP commit tail changes

Signed-off-by: Brian Starkey <brian.starkey@arm.com>
[rebased and fixed conflicts]
Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-07-05 15:19:03 +01:00
Liviu Dudau
09368e32a9 drm/mali-dp: Add RGB writeback formats for DP500.
Annotate the pixel format matrix for DP500 with the memory-write flag
for formats that are supported by the SE memwrite engine.

Reviewed-by: Brian Starkey <brian.starkey@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-07-05 15:19:02 +01:00
Liviu Dudau
1cb3cbe732 drm/mali-dp: Add writeback support for DP500.
Mali DP500 behaves differently from the rest of the Mali DP IP,
in that it does not have a one-shot mode and keeps writing the
content of the current frame to the provided memory area until
stopped. As a way of emulating the one-shot behaviour, we are
going to use the CVAL interrupt that is being raised at the
start of each frame, during prefetch phase, to act as End-of-Write
signal, but with a twist: we are going to disable the memory
write engine right after we're notified that it has been enabled,
using the knowledge that the bit controlling the enabling will
only be acted upon on the next vblank/prefetch.

CVAL interrupt will fire durint the next prefetch phase every time
the global CVAL bit gets set, so we need a state byte to track
the memory write enabling. We also need to pay attention during the
disabling of the memory write engine as that requires the CVAL bit
to be set in the control register, but we don't want to do that
during an atomic commit, as it will write into the hardware a partial
state.

Reviewed-by: Brian Starkey <brian.starkey@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-07-05 15:19:02 +01:00
Brian Starkey
a67bbbe225 drm: mali-dp: Add RGB writeback formats for DP550/DP650
Add a layer bit for the SE memory-write, and add it to the pixel format
matrix for DP550/DP650.

Signed-off-by: Brian Starkey <brian.starkey@arm.com>
[rebased and fixed conflicts]
Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-07-05 15:19:01 +01:00
Liviu Dudau
846c87a068 drm: mali-dp: Add support for writeback on DP550/DP650
Mali-DP display processors are able to write the composition result to a
memory buffer via the SE.

Add entry points in the HAL for enabling/disabling this feature, and
implement support for it on DP650 and DP550. DP500 acts differently and
so is omitted from this change.

Changes since v3:
 - Fix missing vsync interrupt for DP550

Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Brian Starkey <brian.starkey@arm.com>
[rebased and fixed conflicts]
Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com>
2018-07-05 15:19:00 +01:00
Russell King
070473bcf7 drm: add missing ctx argument to plane transitional helpers
In commits:
34a2ab5e06 ("drm: Add acquire ctx parameter to ->update_plane")
1931529448 ("drm: Add acquire ctx parameter to ->plane_disable")

a pointer to a drm_modeset_acquire_ctx structure was added as an
argument to the method prototypes.  The transitional helpers are
supposed to be directly plugged in as implementations of these
methods, but doing so generates a warning.  Add the missing
argument.

A number of buggy users were added for drm_plane_helper_disable()
which need to be fixed up for this change, which we do by passing
a NULL ctx argument.

Fixes: 1931529448 ("drm: Add acquire ctx parameter to ->plane_disable")
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/E1fa1Zr-0005gT-VF@rmk-PC.armlinux.org.uk
2018-07-03 09:30:19 +02:00
Ayan Kumar Halder
c6cf387ec5 drm/mali-dp: Rectify the width and height passed to rotmem_required()
The width and height needs to be swapped

Signed-off-by: Ayan Kumar halder <ayan.halder@arm.com>
Reviewed-by: Brian Starkey <brian.starkey@arm.com>
Reviewed-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@arm.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
[rebased on top of v4.18-rc1]
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-06-18 18:08:43 +01:00
Ayan Kumar Halder
ad7fda2e37 drm/arm/malidp: Preserve LAYER_FORMAT contents when setting format
On some Mali-DP processors, the LAYER_FORMAT register contains fields
other than the format. These bits were unconditionally cleared when
setting the pixel format, whereas they should be preserved at their
reset values.

Reported-by: Brian Starkey <brian.starkey@arm.com>
Reported-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Ayan Kumar halder <ayan.halder@arm.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-06-18 18:02:42 +01:00
Alison Wang
89610dc2c2 drm: mali-dp: Enable Global SE interrupts mask for DP500
In the situation that DE and SE aren’t shared the same interrupt number,
the Global SE interrupts mask bit MASK_IRQ_EN in MASKIRQ must be set, or
else other mask bits will not work and no SE interrupt will occur. This
patch enables MASK_IRQ_EN for SE to fix this problem.

Signed-off-by: Alison Wang <alison.wang@nxp.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-06-18 18:02:11 +01:00
Ayan Kumar Halder
109c4d18e5 drm/arm/malidp: Ensure that the crtcs are shutdown before removing any encoder/connector
One needs to ensure that the crtcs are shutdown so that the
drm_crtc_state->connector_mask reflects that no connectors
are currently active. Further, it reduces the reference
count for each connector. This ensures that the connectors
and encoders can be cleanly removed either when _unbind
is called for the corresponding drivers or by
drm_mode_config_cleanup().
We need drm_atomic_helper_shutdown() to be called before
component_unbind_all() otherwise the connectors attached to the
component device will have the wrong reference count value and will not
be cleanly removed.

Signed-off-by: Ayan Kumar Halder <ayan.halder@arm.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-06-18 18:01:40 +01:00
Mihail Atanassov
6e810eb508 drm: mali-dp: Add YUV->RGB conversion support for video layers
Internally Mali DP uses an RGB pipeline so video layers that support
YUV input buffers need to convert the input data to RGB. The YUV
buffers can have various encodings and this patch introduces support
for BT.601, BT.709 and BT.2020 encodings, both limited and full ranges.

This patch adds support for specifying the color encoding of the
input buffers for the planes that are backed by the video layers
and programs the YUV2RGB coefficients into hardware based on the
selected encoding.

Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com>
[updated to use standard properties]
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-03-14 11:41:01 +00:00
Liviu Dudau
57085dca98 drm: mali-dp: Turn off CRTC vblank when removing module.
When unbinding the mali-dp driver the drm_vblank_cleanup() function
warns us that the vblanks are still enabled. Fix that by calling
drm_crtc_vblank_off() in the malidp_unbind() function.

Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-03-14 11:38:03 +00:00
Laurent Pinchart
828f207077 drm: arm: malidp: Use drm_atomic_helper_shutdown() to disable planes on removal
The plane cleanup handler currently calls drm_plane_helper_disable(),
which is a legacy helper function. Replace it with a call to
drm_atomic_helper_shutdown() at removal time.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-03-14 11:38:03 +00:00
Laurent Pinchart
084ffbd7fd drm: arm: malidp: Don't destroy planes manually in error handlers
The top-level error handler calls drm_mode_config_cleanup() which will
destroy all planes. There's no need to destroy them manually in lower
error handlers.

As plane cleanup is now handled entirely by drm_mode_config_cleanup(),
we must ensure that the plane .destroy() handler frees allocated memory
for the plane object that was freed by malidp_de_planes_destroy(). Do so
by replacing the call to devm_kfree() in the .destroy() handler by
kfree(). devm_kfree() is currently a no-op as the plane memory is
allocated with kzalloc(), not devm_kzalloc().

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-03-14 11:38:02 +00:00
Liviu Dudau
d862b2d622 drm/mali-dp: Fix malidp_atomic_commit_hw_done() for event sending.
Mali DP hardware has a 'go' bit (config_valid) for making the new scene
parameters active at the next page flip. The problem with the current
code is that the driver first sets this bit and then proceeds to wait
for confirmation from the hardware that the configuration has been
updated before arming the vblank event. As config_valid is actually
asserted by the hardware after the vblank event, during the prefetch
phase, when we get to arming the vblank event we are going to send it
at the next vblank, in effect halving the vblank rate from the userspace
perspective.

Fix it by sending the userspace event from the IRQ handler, when we
handle the config_valid interrupt, which syncs with the time when the
hardware is active with the new parameters.

Reported-by: Alexandru-Cosmin Gheorghe <alexandru-cosmin.gheorghe@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-03-14 11:38:02 +00:00
Ayan Halder
f0437819ad drm/arm/malidp: Disable pixel alpha blending for colors that do not have alpha
Mali dp needs to disable pixel alpha blending (use layer alpha blending) to
display color formats that do not contain alpha bits per pixel

This patch depends on:

"[PATCH v2 01/19] drm/fourcc: Add a alpha field to drm_format_info"

Signed-off-by: Ayan Kumar Halder <ayan.halder@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-03-14 11:38:02 +00:00
Ayan Halder
6cc3a505dc drm: mali-dp: Fix bug on scaling with rotation
In the case, when the user wants to scale and rotate a layer by 90/270
degrees, the scaling engine input dimensions' parameters ie width and
height needs to be swapped with respect to the layer's input dimensions.
This means scaling engine input height should be set to layer's input
width and scaling engine input width should be set to
layer's input height.

Signed-off-by: Ayan Halder <ayan.halder@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-03-14 11:38:02 +00:00
Liviu Dudau
e0521c05c1 drm/mali-dp: Don't enable scaling engine for planes that only rotate.
Currently the scaling engine gets enabled for a plane where the input
size differs from the composition size. As rotation is done natively
by the plane's hardware layer, we don't need the scaling engine to be
enabled.

Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-03-14 11:38:02 +00:00
Dan Carpenter
f2f2c85c66 drm: mali-dp: Uninitialized variable in malidp_se_check_scaling()
We use "mc" without initializing it if scaling is not necessary.

Fixes: 28ce675b74 ("drm: mali-dp: Add plane upscaling support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Mihail Atanassov <Mihail.Atanassov@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-03-14 11:38:02 +00:00
Liviu Dudau
5ed4fdfa58 drm/mali-dp: Align pitch size to be multiple of bus burst read size.
Mali DP hardware needs pitch line sizes aligned to the bus burst
size for reads, so take that into consideration when allocating dumb
buffers. If the layer is rotated then the stride size requirement is
even larger for some hardware versions, so allocate for the worst case
scenario. Update the ->dumb_create() hook to a driver specific function
that sets the correct pitch size.

Reported-by: Ayan Halder <ayan.halder@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-03-14 11:38:02 +00:00
Liviu Dudau
fcad73b9b1 drm/mali-dp: Rotated planes need a larger pitch size.
Rotated planes need a pitch size that is aligned to 8 bytes
for older DP500 and DP550 and at least 64 bytes for DP650. Replace
the malidp_hw_pitch_valid() function with one that calculates
the correct pitch alignment to take into account rotation.

Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2018-03-14 11:38:02 +00:00
Ville Syrjälä
81af63a4af drm: Don't pass clip to drm_atomic_helper_check_plane_state()
Move the plane clip rectangle handling into
drm_atomic_helper_check_plane_state(). Drivers no longer
have to worry about such mundane details.

v2: Convert armada, rcar, and sun4i as well
v3: Resolve simple_kms_helper conflict

Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Brian Starkey <brian.starkey@arm.com>
Cc: Mali DP Maintainers <malidp@foss.arm.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Gustavo Padovan <gustavo@padovan.org>
Cc: Sean Paul <seanpaul@chromium.org>
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: Ben Skeggs <bskeggs@redhat.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Sandy Huang <hjc@rock-chips.com>
Cc: "Heiko Stübner" <heiko@sntech.de>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: VMware Graphics <linux-graphics-maintainer@vmware.com>
Cc: Sinclair Yeh <syeh@vmware.com>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Archit Taneja <architt@codeaurora.org>
Cc: linux-amlogic@lists.infradead.org
Cc: linux-arm-msm@vger.kernel.org
Cc: freedreno@lists.freedesktop.org
Cc: nouveau@lists.freedesktop.org
Cc: linux-renesas-soc@vger.kernel.org
Cc: linux-tegra@vger.kernel.org
Cc: Russell King <rmk+kernel@armlinux.org.uk>
Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Archit Taneja <architt@codeaurora.org> #msm
Link: https://patchwork.freedesktop.org/patch/msgid/20180123170857.13818-5-ville.syrjala@linux.intel.com
Acked-by: Liviu Dudau <liviu.dudau@arm.com> #hdlcd,malidp
Acked-by: Philipp Zabel <p.zabel@pengutronix.de> #imx,mtk
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com> #vmwgfx
Acked-by: Neil Armstrong <narmstrong@baylibre.com> #meson
Acked-by: Shawn Guo <shawnguo@kernel.org> #zte
2018-03-05 20:48:25 +02:00
Ville Syrjälä
de9f422e30 drm/arm/mali-dp: Use drm_mode_get_hv_timing() to populate plane clip rectangle
Use drm_mode_get_hv_timing() to fill out the plane clip rectangle.

Note that this replaces crtc_state->adjusted_mode usage with
crtc_state->mode. The latter is the correct choice since that's the
mode the user provided and it matches the plane crtc coordinates
the user also provided.

Once everyone agrees on this we can move the clip handling into
drm_atomic_helper_check_plane_state().

Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Brian Starkey <brian.starkey@arm.com>
Cc: Mali DP Maintainers <malidp@foss.arm.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171123190502.28449-5-ville.syrjala@linux.intel.com
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
2018-01-23 17:41:36 +02:00
Ville Syrjälä
872d20dfbd drm/arm/hdlcd: Use drm_mode_get_hv_timing() to populate plane clip rectangle
Use drm_mode_get_hv_timing() to fill out the plane clip rectangle.

Note that this replaces crtc_state->adjusted_mode usage with
crtc_state->mode. The latter is the correct choice since that's the
mode the user provided and it matches the plane crtc coordinates
the user also provided.

Once everyone agrees on this we can move the clip handling into
drm_atomic_helper_check_plane_state().

Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Brian Starkey <brian.starkey@arm.com>
Cc: Mali DP Maintainers <malidp@foss.arm.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171123190502.28449-4-ville.syrjala@linux.intel.com
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
2018-01-23 17:41:32 +02:00
Noralf Trønnes
bdecd83546 drm/arm/mali: Use drm_fb_cma_fbdev_init/fini()
Use drm_fb_cma_fbdev_init() and drm_fb_cma_fbdev_fini() which relies on
the fact that drm_device holds a pointer to the drm_fb_helper structure.
This means that the driver doesn't have to keep track of that.
Also use the drm_fb_helper functions directly.

Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Brian Starkey <brian.starkey@arm.com>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171115142001.45358-20-noralf@tronnes.org
2017-12-08 14:47:43 +01:00
Gustavo Padovan
7b47c66cfa Merge arlied/drm-next into drm-misc-next
We need to pull 66660d4cf2 (drm: add connector info/property for
non-desktop displays [v2]) into drm-misc-next to continue the development
of the display rotation series.

Effectively this also pulls 4.15-r2 into drm-misc-next.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.com>
2017-12-04 16:04:45 -02:00
Dave Airlie
2c1c55cb75 Merge tag 'drm-misc-next-2017-11-30' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
Cross-subsystem Changes:

- device tree doc for the Mitsubishi AA070MC01 and Tianma TM070RVHG71
panels (Lukasz Majewski) and for a 2nd endpoint on stm32 (Philippe Cornu)

Core Changes:

The most important changes are:

- Add drm_driver .last_close and .output_poll_changed helpers to reduce
fbdev emulation footprint in drivers (Noralf)
- Fix plane clipping in core and for vmwgfx (Ville)

Then we have a bunch of of improvement for print and debug such as the
addition of a framebuffer debugfs file. ELD connector, HDMI and
improvements.  And a bunch of misc improvements, clean ups and style
changes and doc updates

[airlied: drop eld bits from amdgpu_dm]

Driver Changes:

- sii8620: filter unsupported modes and add DVI mode support (Maciej Purski)
- rockchip: analogix_dp: Remove unnecessary init code (Jeffy Chen)
- virtio, cirrus: add fb create_handle support to enable screenshots(Lepton Wu)
- virtio: replace reference/unreference with get/put (Aastha Gupta)
- vc4, gma500: Convert timers to use timer_setup() (Kees Cook)
- vc4: Reject HDMI modes with too high of clocks (Eric)
- vc4: Add support for more pixel formats (Dave Stevenson)
- stm: dsi: Rename driver name to "stm32-display-dsi" (Philippe Cornu)
- stm: ltdc: add a 2nd endpoint (Philippe Cornu)
- via: use monotonic time for VIA_WAIT_IRQ (Arnd Bergmann)

* tag 'drm-misc-next-2017-11-30' of git://anongit.freedesktop.org/drm/drm-misc: (96 commits)
  drm/bridge: tc358767: add copyright lines
  MAINTAINERS: change maintainer for Rockchip drm drivers
  drm/vblank: Fix vblank timestamp debugs
  drm/via: use monotonic time for VIA_WAIT_IRQ
  dma-buf: Fix ifnullfree.cocci warnings
  drm/printer: Add drm_vprintf()
  drm/edid: Allow HDMI infoframe without VIC or S3D
  video/hdmi: Allow "empty" HDMI infoframes
  dma-buf/fence: Fix lock inversion within dma-fence-array
  drm/sti: Handle return value of platform_get_irq_byname
  drm/vc4: Add support for NV21 and NV61.
  drm/vc4: Use .pixel_order instead of custom .flip_cbcr
  drm/vc4: Add support for DRM_FORMAT_RGB888 and DRM_FORMAT_BGR888
  drm: Move drm_plane_helper_check_state() into drm_atomic_helper.c
  drm: Check crtc_state->enable rather than crtc->enabled in drm_plane_helper_check_state()
  drm/vmwgfx: Try to fix plane clipping
  drm/vmwgfx: Use drm_plane_helper_check_state()
  drm/vmwgfx: Remove bogus crtc coords vs fb size check
  gpu: gma500: remove unneeded DRIVER_LICENSE #define
  drm: don't link DP aux i2c adapter to the hardware device node
  ...
2017-12-04 05:42:49 +10:00
Dave Airlie
062076e861 Merge branch 'for-upstream/mali-dp' of git://linux-arm.org/linux-ld into drm-fixes
mali-dp interface cleanups.

* 'for-upstream/mali-dp' of git://linux-arm.org/linux-ld:
  drm: mali-dp: Disable planes when their CRTC gets disabled.
  drm: mali-dp: Separate static internal data into a read-only structure.
  drm/arm: Replace instances of drm_dev_unref with drm_dev_put.
  drm: mali-dp: switch to drm_*_get(), drm_*_put() helpers
2017-12-01 09:15:31 +10:00
Dave Airlie
a42ea78f5b Merge branch 'for-upstream/hdlcd' of git://linux-arm.org/linux-ld into drm-fixes
3 hdlcd fixes/cleanups

* 'for-upstream/hdlcd' of git://linux-arm.org/linux-ld:
  drm/arm: Replace instances of drm_dev_unref with drm_dev_put.
  drm: Fix checkpatch issue: "WARNING: braces {} are not necessary for single statement blocks."
  drm: hdlcd: Update PM code to save/restore console.
2017-12-01 09:14:18 +10:00
Noralf Trønnes
194b8799d2 drm/arm/mali: Use drm_mode_config_helper_suspend/resume()
Replace driver's code with the generic helpers that do the same thing.

Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Brian Starkey <brian.starkey@arm.com>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171106191812.38927-4-noralf@tronnes.org
2017-11-30 18:18:33 +01:00
Srishti Sharma
f73e8b8253 drm/arm: Replace instances of drm_dev_unref with drm_dev_put.
Replace drm_dev_unref with drm_dev_put as it is more consistent
with kernel coding style. Done using the following semantic
patch by coccinelle.

@r@
expression e;
@@

-drm_dev_unref();
+drm_dev_put();

Signed-off-by: Srishti Sharma <srishtishar@gmail.com>
[split into hdlcd and malidp specific patches]
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2017-11-27 09:51:42 +00:00
Vitor Massaru Iha
fa56b3f831 drm: Fix checkpatch issue: "WARNING: braces {} are not necessary for single statement blocks."
Signed-off-by: Vitor Massaru Iha <vitor@massaru.org>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2017-11-27 09:51:27 +00:00
Liviu Dudau
54243016ae drm: mali-dp: Disable planes when their CRTC gets disabled.
Make sure only the planes on the active CRTCs get committed and
that all planes on the disabled CRTCs get turned off.

Reviewed-by: Brian Starkey <brian.starkey@arm.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2017-11-24 15:43:52 +00:00
Liviu Dudau
a6993b215a drm: mali-dp: Separate static internal data into a read-only structure.
The malidp_hw_device structure that the driver uses to handle the
differences between versions of the IP contains both non-changeable
data and fields that get updated at probe time. Previously we were
copying the read-only part into allocated memory, but that can be
completely avoided by splitting the structure into a read-only part
and keeping the runtime modifiable fields into the old structure.

Reviewed-by: Brian Starkey <brian.starkey@arm.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
2017-11-24 15:42:59 +00:00