The vendor driver makes a few retries on read DSI
transactions, something that is needed especially in
case of read (such as reading the panel MTP ID) while
the panel is running in video mode. This happens on
the Samsung s6e63m0 panel on the Golden device.
Retry reads and writes alike three times.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Stephan Gerhold <stephan@gerhold.net>
Cc: Stephan Gerhold <stephan@gerhold.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20200814194451.3494294-1-linus.walleij@linaro.org
The MCDE DSI link hardware which is modeled like a bridge
in DRM, connected further to the panel bridge, creating
a pipeline.
We have been using the .pre_enable(), .enable(),
.disable() and .post_disable() callbacks from the bridge
to set this up in a chained manner: first the display
controller goes online and then in successive order
each bridge in the pipeline. Inside DRM it works
like this:
drm_atomic_helper_commit_tail()
drm_atomic_helper_commit_modeset_enables()
struct drm_crtc_helper_funcs .atomic_enable()
struct drm_simple_display_pipe_funcs .enable()
MCDE display enable call
drm_atomic_bridge_chain_enable()
struct drm_bridge_funcs .pre_enable()
mcde_dsi_bridge_pre_enable()
panel_bridge_pre_enable()
struct drm_panel_funcs .prepare()
struct drm_bridge_funcs .enable()
mcde_dsi_bridge_enable()
panel_bridge_enable()
struct drm_panel_funcs .enable()
A similar sequence is executed for disabling.
Unfortunately this is not what the hardware needs: at
a certain stage in the enablement of the display
controller the DSI link needs to come up to support
video mode, else something (like a FIFO flow) locks
up the hardware and we never get picture.
Fix this by simply leaving the pre|enable and
post|disable callbacks unused, and establish two
cross-calls from the display controller to bring up
the DSI link at the right place in the display
bring-up sequence and vice versa in the shutdown
sequence.
For command mode displays, it works just fine to
also enable the display flow early. The only time
we hold it back right now is in one-shot mode,
on-demand display updates.
When combined with the previous patch and some patches
for the S6E63M0 display controller to support DSI
mode, this gives working display on the Samsung
GT-I8190 (Golden) phone. It has also been tested working
on the Samsung GT-S7710 (Skomer) phone.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: newbytee@protonmail.com
Cc: Stephan Gerhold <stephan@gerhold.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20200808223122.1492124-4-linus.walleij@linaro.org
To make sure that the MCDE is in a reasonable state during
set-up, perform a reset by power cycling the block by dropping
the on-chip regulator reference after probe. The display
subsystem (DSS) has no dedicated reset line so dropping
the EPOD regulator is the only real way of resetting it.
We introduce code to enable and disable the regulator in
the display enable/disable callbacks.
We move the generic MCDE setup such as muxing of DPI
signals and masking of interrupts to the display
handling.
When we drop the power to the whole display subsystem, not
only MCDE but also the DSI links lose their state. Therefore
we move the DSI block reset and hardware initialization
code to the mcde_dsi_bridge_pre_enable() callback so this
happens every time we start up the bridge, as we may have
lost the power.
We move the final disablement of the interrupts and
clocks to the mcde_dsi_bridge_post_disable() callback
rather than have it in the mcde_dsi_bridge_disable()
callback, as some control messages may still be sent
over the DSI host after the bridge has been shut down.
This (together with a patch for the corresponding
panel) makes the Samsung GT-S7710 successfully disable
and re-enable its display, cutting all power while
disabled and re-initializing the hardware when coming
back up.
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: newbytee@protonmail.com
Cc: Stephan Gerhold <stephan@gerhold.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20200808223122.1492124-3-linus.walleij@linaro.org
The pixel fetcher FIFO depth was just hardcoded to 48
which works fine as long as the framebuffer is 32BPP
and the DSI output is RGB888.
We will need more elaborate handling for some buffer
formats and displays, so start to improve this function
by setting reasonable defaults for 32, 24 and 16 BPP
framebuffers.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: newbytee@protonmail.com
Cc: Stephan Gerhold <stephan@gerhold.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20200808223122.1492124-1-linus.walleij@linaro.org
Revamp the way that the flow of data to the display is
defined.
I realized that the hardware supports something like
5 different modes of flow: oneshot, command with TE IRQ,
command with BTA (bus turn around) and TE IRQ, video
with TE IRQ and video without TE IRQ instead synchronizing
to the output of the MCDE DSI formatter.
Like before the selection of the type of flow is done
from the DSI driver when we attach it to the MCDE and we
get to know what the display wants.
The new video mode synchronization method from the MCDE DSI
formatter is used on some upstream devices such as Golden.
This is the new default for video mode: stateless panels
do not as a rule generate TE IRQs.
Another semantic change is that we stop sending
a TE request before every command when sending data to
a display in command mode: this should only be explicitly
requested when using BTA, according to the vendor driver.
This has been tested and works fine with the command mode
displays I have. (All that are supported upstream.)
Reported-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Stephan Gerhold <stephan@gerhold.net>
Cc: Stephan Gerhold <stephan@gerhold.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20200729090915.252730-2-linus.walleij@linaro.org
The function mcde_display_send_one_frame() has a historical
name that stems from being implemented when the driver
only supported single frame updates.
Rename it mcde_start_flow() so that it reflects the current
usage.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20200729090915.252730-1-linus.walleij@linaro.org
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Merge tag 'v5.8' into drm-next
I need to backmerge 5.8 as I've got a bunch of fixes sitting
on an rc7 base that I want to land.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Whenever a display update was sent, apart from updating
the memory base address, we called mcde_display_send_one_frame()
which also sent a command to the display requesting the TE IRQ
and enabling the FIFO.
When continuous updates are running this is wrong: we need
to only send this to start the flow to the display on
the very first update. This lead to the display pipeline
locking up and crashing.
Check if the flow is already running and in that case
do not call mcde_display_send_one_frame().
This fixes crashes on the Samsung GT-S7710 (Skomer).
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Stephan Gerhold <stephan@gerhold.net>
Cc: Stephan Gerhold <stephan@gerhold.net>
Cc: stable@vger.kernel.org
Link: https://patchwork.freedesktop.org/patch/msgid/20200718233323.3407670-1-linus.walleij@linaro.org
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Merge v5.8-rc6 into drm-next
I've got a silent conflict + two trees based on fixes to merge.
Fixes a silent merge with amdgpu
Signed-off-by: Dave Airlie <airlied@redhat.com>
Unable to handle kernel NULL pointer dereference at virtual address 00000918
pgd = (ptrval)
[00000918] *pgd=00000000
Internal error: Oops: 5 [#1] SMP ARM
Modules linked in:
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.7.0-15001-gfa384b50b96b-dirty #514
Hardware name: ST-Ericsson Ux5x0 platform (Device Tree Support)
PC is at mcde_display_enable+0x78/0x7c0
LR is at mcde_display_enable+0x78/0x7c0
Fix this by using to_mcde() as in other functions.
Fixes: fd7ee85cfe ("drm/mcde: Don't use drm_device->dev_private")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200613223027.4189309-2-linus.walleij@linaro.org
The following bug appeared in the MCDE driver/display
initialization during the recent merge window.
First the place we call drm_fbdev_generic_setup() in the
wrong place: this needs to be called AFTER calling
drm_dev_register() else we get this splat:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1 at ../drivers/gpu/drm/drm_fb_helper.c:2198 drm_fbdev_generic_setup+0x164/0x1a8
mcde a0350000.mcde: Device has not been registered.
Modules linked in:
Hardware name: ST-Ericsson Ux5x0 platform (Device Tree Support)
[<c010e704>] (unwind_backtrace) from [<c010a86c>] (show_stack+0x10/0x14)
[<c010a86c>] (show_stack) from [<c0414f38>] (dump_stack+0x9c/0xb0)
[<c0414f38>] (dump_stack) from [<c0121c8c>] (__warn+0xb8/0xd0)
[<c0121c8c>] (__warn) from [<c0121d18>] (warn_slowpath_fmt+0x74/0xb8)
[<c0121d18>] (warn_slowpath_fmt) from [<c04b154c>] (drm_fbdev_generic_setup+0x164/0x1a8)
[<c04b154c>] (drm_fbdev_generic_setup) from [<c04ed278>] (mcde_drm_bind+0xc4/0x160)
[<c04ed278>] (mcde_drm_bind) from [<c04f06b8>] (try_to_bring_up_master+0x15c/0x1a4)
(...)
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200613223027.4189309-1-linus.walleij@linaro.org
DRM_GEM_CMA_DRIVER_OPS sets the functions in struct drm_driver
to their defaults. No functional changes are made.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200605073247.4057-25-tzimmermann@suse.de
Create GEM objects with drm_gem_cma_create_object_default_funcs(), which
allocates the object and sets CMA's default object functions. Corresponding
callbacks in struct drm_driver are cleared. No functional changes are made.
Driver and object-function instances use the same callback functions, with
the exception of vunmap. The implementation of vunmap is empty and left out
in CMA's default object functions.
v3:
* convert to DRIVER_OPS macro in a separate patch
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200605073247.4057-24-tzimmermann@suse.de
htotal*vtotal*vrefresh ~= clock. So just say "clock" when we mean it.
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200428171940.19552-12-ville.syrjala@linux.intel.com
Upcasting using a container_of macro is more typesafe, faster and
easier for the compiler to optimize.
v2: Move misplaced removal of double-assignment to this patch (Sam)
Reviewed-by: Linus Walleij <linus.walleij@linaro.org> (v1)
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200415074034.175360-30-daniel.vetter@ffwll.ch
Already using devm_drm_dev_init, so very simple replacment.
v2: Move misplaced double-assignement to next patch (Sam)
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200415074034.175360-29-daniel.vetter@ffwll.ch
Auto-unwind ftw, now possible with the fixed drm_device related
management.
Aside, clk/regulator seem to be missing devm versions for a bunch of
functions, preventing a pile of these simpler drivers from outright
losing their ->remove hook.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-34-daniel.vetter@ffwll.ch
Allows us to drop the drm_driver.release callback.
This is made possible by a preceeding patch which added a drmm_
cleanup action to drm_mode_config_init(), hence all we need to do to
ensure that drm_mode_config_cleanup() is run on final drm_device
cleanup is check the new error code for _init().
v2: Explain why this cleanup is possible (Laurent).
v3: Use drmm_mode_config_init() for more clarity (Sam, Thomas)
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org> (v2)
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-33-daniel.vetter@ffwll.ch
With this we can drop the final kfree from the release function.
v2: Fix unused variable warning, spotted while applying.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-13-daniel.vetter@ffwll.ch
Most bridge drivers create a DRM connector to model the connector at the
output of the bridge. This model is historical and has worked pretty
well so far, but causes several issues:
- It prevents supporting more complex display pipelines where DRM
connector operations are split over multiple components. For instance a
pipeline with a bridge connected to the DDC signals to read EDID data,
and another one connected to the HPD signal to detect connection and
disconnection, will not be possible to support through this model.
- It requires every bridge driver to implement similar connector
handling code, resulting in code duplication.
- It assumes that a bridge will either be wired to a connector or to
another bridge, but doesn't support bridges that can be used in both
positions very well (although there is some ad-hoc support for this in
the analogix_dp bridge driver).
In order to solve these issues, ownership of the connector should be
moved to the display controller driver (where it can be implemented
using helpers provided by the core).
Extend the bridge API to allow disabling connector creation in bridge
drivers as a first step towards the new model. The new flags argument to
the bridge .attach() operation allows instructing the bridge driver to
skip creating a connector. Unconditionally set the new flags argument to
0 for now to keep the existing behaviour, and modify all existing bridge
drivers to return an error when connector creation is not requested as
they don't support this feature yet.
The change is based on the following semantic patch, with manual review
and edits.
@ rule1 @
identifier funcs;
identifier fn;
@@
struct drm_bridge_funcs funcs = {
...,
.attach = fn
};
@ depends on rule1 @
identifier rule1.fn;
identifier bridge;
statement S, S1;
@@
int fn(
struct drm_bridge *bridge
+ , enum drm_bridge_attach_flags flags
)
{
... when != S
+ if (flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR) {
+ DRM_ERROR("Fix bridge driver to make connector optional!");
+ return -EINVAL;
+ }
+
S1
...
}
@ depends on rule1 @
identifier rule1.fn;
identifier bridge, flags;
expression E1, E2, E3;
@@
int fn(
struct drm_bridge *bridge,
enum drm_bridge_attach_flags flags
) {
<...
drm_bridge_attach(E1, E2, E3
+ , flags
)
...>
}
@@
expression E1, E2, E3;
@@
drm_bridge_attach(E1, E2, E3
+ , 0
)
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Tested-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200226112514.12455-10-laurent.pinchart@ideasonboard.com
UAPI Changes:
- Commandline parser: Add support for panel orientation, and per-mode options.
- Fix IOCTL naming for dma-buf heaps.
Cross-subsystem Changes:
- Rename DMA_HEAP_IOC_ALLOC to DMA_HEAP_IOCTL_ALLOC before it becomes abi.
- Change DMA-BUF system-heap's name to system.
- Fix leak in error handling in dma_heap_ioctl(), and make a symbol static.
- Fix udma-buf cpu access.
- Fix ti devicetree bindings.
Core Changes:
- Add CTA-861-G modes with VIC >= 193.
- Change error handling and remove bug_on in *drm_dev_init.
- Export drm_panel_of_backlight() correctly once more.
- Add support for lvds decoders.
- Convert drm/client and drm/(gem-,)fb-helper to drm-device based logging and update logging todo.
Driver Changes:
- Add support for dsi/px30 to rockchip.
- Add fb damage support to virtio.
- Use dma_resv locking wrappers in vc4, msm, etnaviv.
- Make functions in virtio static, and perform some simplifications.
- Add suspend support to sun4i.
- Add A64 mipi dsi support to sun4i.
- Add runtime pm suspend to komeda.
- Associated driver fixes.
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Merge tag 'drm-misc-next-2020-01-02' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for v5.6:
UAPI Changes:
- Commandline parser: Add support for panel orientation, and per-mode options.
- Fix IOCTL naming for dma-buf heaps.
Cross-subsystem Changes:
- Rename DMA_HEAP_IOC_ALLOC to DMA_HEAP_IOCTL_ALLOC before it becomes abi.
- Change DMA-BUF system-heap's name to system.
- Fix leak in error handling in dma_heap_ioctl(), and make a symbol static.
- Fix udma-buf cpu access.
- Fix ti devicetree bindings.
Core Changes:
- Add CTA-861-G modes with VIC >= 193.
- Change error handling and remove bug_on in *drm_dev_init.
- Export drm_panel_of_backlight() correctly once more.
- Add support for lvds decoders.
- Convert drm/client and drm/(gem-,)fb-helper to drm-device based logging and update logging todo.
Driver Changes:
- Add support for dsi/px30 to rockchip.
- Add fb damage support to virtio.
- Use dma_resv locking wrappers in vc4, msm, etnaviv.
- Make functions in virtio static, and perform some simplifications.
- Add suspend support to sun4i.
- Add A64 mipi dsi support to sun4i.
- Add runtime pm suspend to komeda.
- Associated driver fixes.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/efc11139-1653-86bc-1b0f-0aefde219850@linux.intel.com
The video DSI mode had not really been tested. These fixes makes
it more likely to work on real hardware:
- Put the active width (x width) in the right bits and the VSA
(vertical sync active) in the right bits (those were swapped).
- Calculate the packet sizes in bytes as in the vendor driver,
rather than in bits. Test the calculations agains a
spreadsheet and confirmed by debug prints to be reasonable.
- Also verified the register values with relative confidence
to register dumps from the Samsung GT-I8190 boot loader
graphics. We are not identical but not off by far either.
- Error out if the current mode and refresh frequency doesn't
work out. (In the future we may simply want to scale down
the vrefresh.)
- Handle negative result in front/back/sync packages and fall
back to zero like in the vendor driver.
- Put in lots of clarifying comments and references to the
documentation where the code is hard to understand.
- Set the DSI_VID_VCA_SETTING2 field
DSI_VID_VCA_SETTING2_MAX_LINE_LIMIT to blkline_pck - 6 as in
the vendor driver and mask the field properly.
- Set the DSI_VID_VCA_SETTING1 field
DSI_VID_VCA_SETTING1_MAX_BURST_LIMIT to blkeol_pck - 6 to
blkeol_duration - 6 as in the vendor driver.
Cc: Stephan Gerhold <stephan@gerhold.net>
Fixes: 5fc537bfd0 ("drm/mcde: Add new driver for ST-Ericsson MCDE")
Link: https://patchwork.freedesktop.org/patch/msgid/20191217150959.17215-1-linus.walleij@linaro.org
Reviewed-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
UAPI Changes:
- Add support for DMA-BUF HEAPS.
Cross-subsystem Changes:
- mipi dsi definition updates, pulled into drm-intel as well.
- Add lockdep annotations for dma_resv vs mmap_sem and fs_reclaim.
- Remove support for dma-buf kmap/kunmap.
- Constify fb_ops in all fbdev drivers, including drm drivers and drm-core, and media as well.
Core Changes:
- Small cleanups to ttm.
- Fix SCDC definition.
- Assorted cleanups to core.
- Add todo to remove load/unload hooks, and use generic fbdev emulation.
- Assorted documentation updates.
- Use blocking ww lock in ttm fault handler.
- Remove drm_fb_helper_fbdev_setup/teardown.
- Warning fixes with W=1 for atomic.
- Use drm_debug_enabled() instead of drm_debug flag testing in various drivers.
- Fallback to nontiled mode in fbdev emulation when not all tiles are present. (Later on reverted)
- Various kconfig indentation fixes in core and drivers.
- Fix freeing transactions in dp-mst correctly.
- Sean Paul is steping down as core maintainer. :-(
- Add lockdep annotations for atomic locks vs dma-resv.
- Prevent use-after-free for a bad job in drm_scheduler.
- Fill out all block sizes in the P01x and P210 definitions.
- Avoid division by zero in drm/rect, and fix bounds.
- Add drm/rect selftests.
- Add aspect ratio and alternate clocks for HDMI 4k modes.
- Add todo for drm_framebuffer_funcs and fb_create cleanup.
- Drop DRM_AUTH for prime import/export ioctls.
- Clear DP-MST payload id tables downstream when initializating.
- Fix for DSC throughput definition.
- Add extra FEC definitions.
- Fix fake offset in drm_gem_object_funs.mmap.
- Stop using encoder->bridge in core directly
- Handle bridge chaining slightly better.
- Add backlight support to drm/panel, and use it in many panel drivers.
- Increase max number of y420 modes from 128 to 256, as preparation to add the new modes.
Driver Changes:
- Small fixes all over.
- Fix documentation in vkms.
- Fix mmap_sem vs dma_resv in nouveau.
- Small cleanup in komeda.
- Add page flip support in gma500 for psb/cdv.
- Add ddc symlink in the connector sysfs directory for many drivers.
- Add support for analogic an6345, and fix small bugs in it.
- Add atomic modesetting support to ast.
- Fix radeon fault handler VMA race.
- Switch udl to use generic shmem helpers.
- Unconditional vblank handling for mcde.
- Miscellaneous fixes to mcde.
- Tweak debug output from komeda using debugfs.
- Add gamma and color transform support to komeda for DOU-IPS.
- Add support for sony acx424AKP panel.
- Various small cleanups to gma500.
- Use generic fbdev emulation in udl, and replace udl_framebuffer with generic implementation.
- Add support for Logic PD Type 28 panel.
- Use drm_panel_* wrapper functions in exynos/tegra/msm.
- Add devicetree bindings for generic DSI panels.
- Don't include drm_pci.h directly in many drivers.
- Add support for begin/end_cpu_access in udmabuf.
- Stop using drm_get_pci_dev in gma500 and mga200.
- Fixes to UDL damage handling, and use dma_buf_begin/end_cpu_access.
- Add devfreq thermal support to panfrost.
- Fix hotplug with daisy chained monitors by removing VCPI when disabling topology manager.
- meson: Add support for OSD1 plane AFBC commit.
- Stop displaying garbage when toggling ast primary plane on/off.
- More cleanups and fixes to UDL.
- Add D32 suport to komeda.
- Remove globle copy of drm_dev in gma500.
- Add support for Boe Himax8279d MIPI-DSI LCD panel.
- Add support for ingenic JZ4770 panel.
- Small null pointer deference fix in ingenic.
- Remove support for the special tfp420 driver, as there is a generic way to do it.
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Merge tag 'drm-misc-next-2019-12-16' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for v5.6:
UAPI Changes:
- Add support for DMA-BUF HEAPS.
Cross-subsystem Changes:
- mipi dsi definition updates, pulled into drm-intel as well.
- Add lockdep annotations for dma_resv vs mmap_sem and fs_reclaim.
- Remove support for dma-buf kmap/kunmap.
- Constify fb_ops in all fbdev drivers, including drm drivers and drm-core, and media as well.
Core Changes:
- Small cleanups to ttm.
- Fix SCDC definition.
- Assorted cleanups to core.
- Add todo to remove load/unload hooks, and use generic fbdev emulation.
- Assorted documentation updates.
- Use blocking ww lock in ttm fault handler.
- Remove drm_fb_helper_fbdev_setup/teardown.
- Warning fixes with W=1 for atomic.
- Use drm_debug_enabled() instead of drm_debug flag testing in various drivers.
- Fallback to nontiled mode in fbdev emulation when not all tiles are present. (Later on reverted)
- Various kconfig indentation fixes in core and drivers.
- Fix freeing transactions in dp-mst correctly.
- Sean Paul is steping down as core maintainer. :-(
- Add lockdep annotations for atomic locks vs dma-resv.
- Prevent use-after-free for a bad job in drm_scheduler.
- Fill out all block sizes in the P01x and P210 definitions.
- Avoid division by zero in drm/rect, and fix bounds.
- Add drm/rect selftests.
- Add aspect ratio and alternate clocks for HDMI 4k modes.
- Add todo for drm_framebuffer_funcs and fb_create cleanup.
- Drop DRM_AUTH for prime import/export ioctls.
- Clear DP-MST payload id tables downstream when initializating.
- Fix for DSC throughput definition.
- Add extra FEC definitions.
- Fix fake offset in drm_gem_object_funs.mmap.
- Stop using encoder->bridge in core directly
- Handle bridge chaining slightly better.
- Add backlight support to drm/panel, and use it in many panel drivers.
- Increase max number of y420 modes from 128 to 256, as preparation to add the new modes.
Driver Changes:
- Small fixes all over.
- Fix documentation in vkms.
- Fix mmap_sem vs dma_resv in nouveau.
- Small cleanup in komeda.
- Add page flip support in gma500 for psb/cdv.
- Add ddc symlink in the connector sysfs directory for many drivers.
- Add support for analogic an6345, and fix small bugs in it.
- Add atomic modesetting support to ast.
- Fix radeon fault handler VMA race.
- Switch udl to use generic shmem helpers.
- Unconditional vblank handling for mcde.
- Miscellaneous fixes to mcde.
- Tweak debug output from komeda using debugfs.
- Add gamma and color transform support to komeda for DOU-IPS.
- Add support for sony acx424AKP panel.
- Various small cleanups to gma500.
- Use generic fbdev emulation in udl, and replace udl_framebuffer with generic implementation.
- Add support for Logic PD Type 28 panel.
- Use drm_panel_* wrapper functions in exynos/tegra/msm.
- Add devicetree bindings for generic DSI panels.
- Don't include drm_pci.h directly in many drivers.
- Add support for begin/end_cpu_access in udmabuf.
- Stop using drm_get_pci_dev in gma500 and mga200.
- Fixes to UDL damage handling, and use dma_buf_begin/end_cpu_access.
- Add devfreq thermal support to panfrost.
- Fix hotplug with daisy chained monitors by removing VCPI when disabling topology manager.
- meson: Add support for OSD1 plane AFBC commit.
- Stop displaying garbage when toggling ast primary plane on/off.
- More cleanups and fixes to UDL.
- Add D32 suport to komeda.
- Remove globle copy of drm_dev in gma500.
- Add support for Boe Himax8279d MIPI-DSI LCD panel.
- Add support for ingenic JZ4770 panel.
- Small null pointer deference fix in ingenic.
- Remove support for the special tfp420 driver, as there is a generic way to do it.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ba73535a-9334-5302-2e1f-5208bd7390bd@linux.intel.com
- One in mcde DSI support that leads to a pointer dereference
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Merge tag 'drm-misc-fixes-2019-11-25' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
- A fix for a memory leak in the dma-buf support
- One in mcde DSI support that leads to a pointer dereference
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20191125094336.GA14723@gilmour.lan
The i index i always 0..3 in these statements so there
is no need to tag "& 3" to clamp it to 3 here. Make
the operator precedence explicit even if it's correct
as it is, the paranthesis creates less cognitive stress
for humans.
Reviewed-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191122072508.25677-1-linus.walleij@linaro.org
The "panel" pointer is not reset to NULL if of_drm_find_panel()
returns an error. Therefore we later assume that a panel was found,
and try to dereference the error pointer, resulting in:
mcde-dsi a0351000.dsi: failed to find panel try bridge (4294966779)
Unable to handle kernel paging request at virtual address fffffe03
PC is at drm_panel_bridge_add.part.0+0x10/0x5c
LR is at mcde_dsi_bind+0x120/0x464
...
Reset "panel" to NULL to avoid this problem.
Also change the format string of the error to %ld to print
the negative errors correctly. The crash above then becomes:
mcde-dsi a0351000.dsi: failed to find panel try bridge (-517)
mcde-dsi a0351000.dsi: no panel or bridge
...
Fixes: 5fc537bfd0 ("drm/mcde: Add new driver for ST-Ericsson MCDE")
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191118130252.170324-1-stephan@gerhold.net
Disabling the display using MCDE currently results in a warning
together with a delay caused by some timeouts:
mcde a0350000.mcde: MCDE display is disabled
------------[ cut here ]------------
WARNING: CPU: 0 PID: 20 at drivers/gpu/drm/drm_atomic_helper.c:2258 drm_atomic_helper_commit_hw_done+0xe0/0xe4
Hardware name: ST-Ericsson Ux5x0 platform (Device Tree Support)
Workqueue: events drm_mode_rmfb_work_fn
[<c010f468>] (unwind_backtrace) from [<c010b54c>] (show_stack+0x10/0x14)
[<c010b54c>] (show_stack) from [<c079dd90>] (dump_stack+0x84/0x98)
[<c079dd90>] (dump_stack) from [<c011d1b0>] (__warn+0xb8/0xd4)
[<c011d1b0>] (__warn) from [<c011d230>] (warn_slowpath_fmt+0x64/0xc4)
[<c011d230>] (warn_slowpath_fmt) from [<c0413048>] (drm_atomic_helper_commit_hw_done+0xe0/0xe4)
[<c0413048>] (drm_atomic_helper_commit_hw_done) from [<c04159cc>] (drm_atomic_helper_commit_tail_rpm+0x44/0x6c)
[<c04159cc>] (drm_atomic_helper_commit_tail_rpm) from [<c0415f5c>] (commit_tail+0x50/0x10c)
[<c0415f5c>] (commit_tail) from [<c04160dc>] (drm_atomic_helper_commit+0xbc/0x128)
[<c04160dc>] (drm_atomic_helper_commit) from [<c0430790>] (drm_framebuffer_remove+0x390/0x428)
[<c0430790>] (drm_framebuffer_remove) from [<c0430860>] (drm_mode_rmfb_work_fn+0x38/0x48)
[<c0430860>] (drm_mode_rmfb_work_fn) from [<c01368a8>] (process_one_work+0x1f0/0x43c)
[<c01368a8>] (process_one_work) from [<c0136d48>] (worker_thread+0x254/0x55c)
[<c0136d48>] (worker_thread) from [<c013c014>] (kthread+0x124/0x150)
[<c013c014>] (kthread) from [<c01010e8>] (ret_from_fork+0x14/0x2c)
Exception stack(0xeb14dfb0 to 0xeb14dff8)
dfa0: 00000000 00000000 00000000 00000000
dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
dfe0: 00000000 00000000 00000000 00000000 00000013 00000000
---[ end trace 314909bcd4c7d50c ]---
[drm:drm_atomic_helper_wait_for_dependencies] *ERROR* [CRTC:32:crtc-0] flip_done timed out
[drm:drm_atomic_helper_wait_for_dependencies] *ERROR* [CONNECTOR:34:DSI-1] flip_done timed out
[drm:drm_atomic_helper_wait_for_dependencies] *ERROR* [PLANE:31:plane-0] flip_done timed out
The reason for this is that there is a vblank event pending, but we
never handle it after disabling the vblank interrupts.
Check if there is an vblank event pending when disabling the display,
and clear it by sending a fake vblank event in that case.
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191106165835.2863-8-stephan@gerhold.net
The DSI initialization sequence incorrectly assumes that the mode_set()
function of the DRM bridge is always called when (re-)enabling the display.
This is not necessarily the case.
Keeping the device idle in the framebuffer console for a while results
in the display being turned off using the disable() function. However,
as soon as any key is pressed only (pre_)enable() are called.
mode_set() is skipped because the mode has not been changed.
In this case, the DSI HS/LP clocks are never turned back on,
preventing the display from working.
Fix this by moving a part of the initialization sequence from
mode_set() to pre_enable(). Keep most of the video mode setup in
mode_set() since most of the registers are only dependent on the mode
that is set for the panel - there is no need to write them again each
time we re-enable the display.
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191106165835.2863-7-stephan@gerhold.net
Using a (single) DSI display with MCDE currently results in
two "connected" connectors:
Connector: DSI-1
id : 34
encoder id : 0
conn : connected
size : 0x0 (mm)
count_modes : 0
count_props : 5
props : 1 2 5 6 4
count_encoders : 1
encoders : 33
Connector: DSI-2
id : 35
encoder id : 33
conn : connected
size : 53x89 (mm)
count_modes : 1
count_props : 5
props : 1 2 5 6 4
count_encoders : 1
encoders : 33
Mode: "480x800" 480x800 60
Although both show up as connected, the first one does not have
any size and no available modes. This confuses userspace tools
(e.g. kmscube) who look for available modes for the first connector.
The reason for the duplicated connector is that mcde_dsi.c and the
DRM panel bridge helper both set up a DSI connector, with more or less
the same code. The connector set up by the DRM panel bridge is the
one that is correctly set up in the example above.
Therefore we can just remove the connector setup from mcde_dsi.c
and let the DRM core handle all the hard work.
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191106165835.2863-6-stephan@gerhold.net
The initialization order for DSI video mode is important - if we
enable the video stream generator (VSG) before the MCDE DSI formatter
starts sending pixel data, it will immediately run into an error and
disable itself again.
Avoid this problem by delaying the activation of the VSG
until the MCDE DSI formatter is properly set up and running
(i.e. when mcde_dsi_bridge_enable() is called).
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191106165835.2863-5-stephan@gerhold.net
Triggering an error conditions in DSI video mode only results in
a very generic "some video mode error status" error message
at the moment.
Make this more clear by adding separate error messages for each bit.
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191106165835.2863-4-stephan@gerhold.net
The MCDE driver differentiates only between "te_sync"
(for hardware TE0 sync) and software sync
(i.e. manually triggered updates) at the moment.
However, none of these options work correctly for video mode panels.
Therefore, we need to make some changes to make them work correctly:
- Select hardware sync coming from the (DSI) formatter.
- Keep the FIFO permanently enabled (otherwise MCDE will stop
feeding data to the panel).
- Skip manual software sync (this is not necessary in video mode).
Automatically detect if the connected panel is using video mode
and enable the necessary changes in that case.
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191106165835.2863-3-stephan@gerhold.net
At the moment, vblank handling is only enabled together with
TE synchronization. However, the vblank IRQ is also working with
on displays without TE synchronization (e.g. DSI video mode panels).
It seems like the vblank IRQ is actually generated by the
MCDE hardware for the channel.
Therefore, the vblank handling should be working correctly in
all the cases and we can enable it unconditionally.
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191106165835.2863-2-stephan@gerhold.net
We haven't done any backmerge for a while due to the merge window, and it
starts to become an issue for komeda. Let's bring 5.4-rc1 in.
Signed-off-by: Maxime Ripard <mripard@kernel.org>
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Merge tag 'drm-next-2019-09-18' of git://anongit.freedesktop.org/drm/drm
Pull drm updates from Dave Airlie:
"This is the main pull request for 5.4-rc1 merge window. I don't think
there is anything outstanding so next week should just be fixes, but
we'll see if I missed anything. I landed some fixes earlier in the
week but got delayed writing summary and sending it out, due to a mix
of sick kid and jetlag!
There are some fixes pending, but I'd rather get the main merge out of
the way instead of delaying it longer.
It's also pretty large in commit count and new amd header file size.
The largest thing is four new amdgpu products (navi12/14, arcturus and
renoir APU support).
Otherwise it's pretty much lots of work across the board, i915 has
started landing tigerlake support, lots of icelake fixes and lots of
locking reworking for future gpu support, lots of header file rework
(drmP.h is nearly gone), some old legacy hacks (DRM_WAIT_ON) have been
put into the places they are needed.
uapi:
- content protection type property for HDCP
core:
- rework include dependencies
- lots of drmP.h removals
- link rate calculation robustness fix
- make fb helper map only when required
- add connector->DDC adapter link
- DRM_WAIT_ON removed
- drop DRM_AUTH usage from drivers
dma-buf:
- reservation object fence helper
dma-fence:
- shrink dma_fence struct
- merge signal functions
- store timestamps in dma_fence
- selftests
ttm:
- embed drm_get_object struct into ttm_buffer_object
- release_notify callback
bridges:
- sii902x - audio graph card support
- tc358767 - aux data handling rework
- ti-snd64dsi86 - debugfs support, DSI mode flags support
panels:
- Support for GiantPlus GPM940B0, Sharp LQ070Y3DG3B, Ortustech
COM37H3M, Novatek NT39016, Sharp LS020B1DD01D, Raydium RM67191, Boe
Himax8279d, Sharp LD-D5116Z01B
- TI nspire, NEC NL8048HL11, LG Philips LB035Q02, Sharp LS037V7DW01,
Sony ACX565AKM, Toppoly TD028TTEC1 Toppoly TD043MTEA1
i915:
- Initial tigerlake platform support
- Locking simplification work, general all over refactoring.
- Selftests
- HDCP debug info improvements
- DSI properties
- Icelake display PLL fixes, colorspace fixes, bandwidth fixes, DSI
suspend/resume
- GuC fixes
- Perf fixes
- ElkhartLake enablement
- DP MST fixes
- GVT - command parser enhancements
amdgpu:
- add wipe memory on release flag for buffer creation
- Navi12/14 support (may be marked experimental)
- Arcturus support
- Renoir APU support
- mclk DPM for Navi
- DC display fixes
- Raven scatter/gather support
- RAS support for GFX
- Navi12 + Arcturus power features
- GPU reset for Picasso
- smu11 i2c controller support
amdkfd:
- navi12/14 support
- Arcturus support
radeon:
- kexec fix
nouveau:
- improved display color management
- detect lack of GPU power cables
vmwgfx:
- evicition priority support
- remove unused security feature
msm:
- msm8998 display support
- better async commit support for cursor updates
etnaviv:
- per-process address space support
- performance counter fixes
- softpin support
mcde:
- DCS transfers fix
exynos:
- drmP.h cleanup
lima:
- reduce logging
kirin:
- misc clenaups
komeda:
- dual-link support
- DT memory regions
hisilicon:
- misc fixes
imx:
- IPUv3 image converter fixes
- 32-bit RGB V4L2 pixel format support
ingenic:
- more support for panel related cases
mgag200:
- cursor support fix
panfrost:
- export GPU features register to userspace
- gpu heap allocations
- per-fd address space support
pl111:
- CLD pads wiring support removed from DT
rockchip:
- rework to use DRM PSR helpers
- fix bug in VOP_WIN_GET macro
- DSI DT binding rework
sun4i:
- improve support for color encoding and range
- DDC enabled GPIO
tinydrm:
- rework SPI support
- improve MIPI-DBI support
- moved to drm/tiny
vkms:
- rework CRC tracking
dw-hdmi:
- get_eld and i2s improvements
gm12u320:
- misc fixes
meson:
- global code cleanup
- vpu feature detect
omap:
- alpha/pixel blend mode properties
rcar-du:
- misc fixes"
* tag 'drm-next-2019-09-18' of git://anongit.freedesktop.org/drm/drm: (2112 commits)
drm/nouveau/bar/gm20b: Avoid BAR1 teardown during init
drm/nouveau: Fix ordering between TTM and GEM release
drm/nouveau/prime: Extend DMA reservation object lock
drm/nouveau: Fix fallout from reservation object rework
drm/nouveau/kms/nv50-: Don't create MSTMs for eDP connectors
drm/i915: Use NOEVICT for first pass on attemping to pin a GGTT mmap
drm/i915: to make vgpu ppgtt notificaiton as atomic operation
drm/i915: Flush the existing fence before GGTT read/write
drm/i915: Hold irq-off for the entire fake lock period
drm/i915/gvt: update RING_START reg of vGPU when the context is submitted to i915
drm/i915/gvt: update vgpu workload head pointer correctly
drm/mcde: Fix DSI transfers
drm/msm: Use the correct dma_sync calls harder
drm/msm: remove unlikely() from WARN_ON() conditions
drm/msm/dsi: Fix return value check for clk_get_parent
drm/msm: add atomic traces
drm/msm/dpu: async commit support
drm/msm: async commit support
drm/msm: split power control from prepare/complete_commit
drm/msm: add kms->flush_commit()
...
The drm panel bridge creates a connector using a connector type
explicitly passed by the display controller or bridge driver that
instantiates the panel bridge. Now that drm_panel reports its connector
type, we can use it to avoid passing an explicit (and often incorrect)
connector type to drm_panel_bridge_add() and
devm_drm_panel_bridge_add().
Several drivers report incorrect or unknown connector types to
userspace. Reporting a different type may result in a breakage. For that
reason, rename (devm_)drm_panel_bridge_add() to
(devm_)drm_panel_bridge_add_typed(), and add new
(devm_)drm_panel_bridge_add() functions that use the panel connector
type. Update all callers of (devm_)drm_panel_bridge_add() to the _typed
function, they will be converted one by one after testing.
The panel drivers have been updated with the following Coccinelle
semantic patch, with manual inspection and fixes to indentation.
@@
expression bridge;
expression dev;
expression panel;
identifier type;
@@
(
-bridge = drm_panel_bridge_add(panel, type);
+bridge = drm_panel_bridge_add_typed(panel, type);
|
-bridge = devm_drm_panel_bridge_add(dev, panel, type);
+bridge = devm_drm_panel_bridge_add_typed(dev, panel, type);
)
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190904132804.29680-3-laurent.pinchart@ideasonboard.com
There were bugs in the DSI transfer (read and write) function
as it was only tested with displays ever needing a single byte
to be written. Fixed it up and tested so we can now write
messages of up to 16 bytes and read up to 4 bytes from the
display.
Tested with a Sony ACX424AKP display: this display now self-
identifies and can control backlight in command mode.
Reported-by: kbuild test robot <lkp@intel.com>
Fixes: 5fc537bfd0 ("drm/mcde: Add new driver for ST-Ericsson MCDE")
Reviewed-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190903170804.17053-1-linus.walleij@linaro.org
Provide a helper to lookup platform devices by matching device
driver in order to avoid drivers trying to use platform bus
internals.
Cc: Eric Anholt <eric@anholt.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Heiko Stübner" <heiko@sntech.de>
Cc: Inki Dae <inki.dae@samsung.com>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Sandy Huang <hjc@rock-chips.com>
Cc: Seung-Woo Kim <sw0312.kim@samsung.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20190723221838.12024-8-suzuki.poulose@arm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
They're the default.
Aside: Would be really nice to switch the others over to
drm_gem_object_funcs.
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190614203615.12639-19-daniel.vetter@ffwll.ch
We never set "vblank" to "false".
Current versions of GCC will initialize it to zero automatically at
certain optimization levels so that's probably why this didn't show up
in testing.
Fixes: 5fc537bfd0 ("drm/mcde: Add new driver for ST-Ericsson MCDE")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190529113458.GG19119@mwanda
