They only complete the page flip events to avoid oops when the drm
file closes. The core takes care of that now and we can remove this
code.
Cc: Rob Clark <robdclark@gmail.com>
Acked-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453756616-28942-8-git-send-email-daniel.vetter@ffwll.ch
Last (very likely at least) drm-misc pull for 4.5. 3 big things:
- piles of docs for kms vtables.
- drm.debug dmesg output prettification from Ville (i915 parts are for 4.6
I think)
- connector mode probing/validating/merging cleanup from Ville.
[airlied : fix drm_encoder_init conflict.]
* tag 'topic/drm-misc-2015-12-14' of git://anongit.freedesktop.org/drm-intel: (43 commits)
drm: modes: Revert cc344980c7 "replace simple_strtoul by kstrtouint"
drm: Expand the drm_helper_probe_single_connector_modes() docs
drm: Allow override_edid to override the firmware EDID
drm/sti: Drop bogus drm_mode_sort() call
drm: Drop drm_helper_probe_single_connector_modes_nomerge()
drm: Only merge mode type bits between new probed modes
drm: Flatten drm_mode_connector_list_update() a bit
drm: Rename MODE_UNVERIFIED to MODE_STALE
drm: Don't overwrite UNVERFIED mode status to OK
drm: Add plane->name and use it in debug prints
drm: Add crtc->name and use it in debug messages
drm: Use driver specified encoder name
drm: Pass 'name' to drm_encoder_init()
drm: Pass 'name' to drm_universal_plane_init()
drm: Pass 'name' to drm_crtc_init_with_planes()
drm: Documentation style guide
drm: Document drm_encoder/crtc_helper_funcs
drm: Move drm_display_mode an related docs into kerneldoc
drm/atomic-helper: Mention the new system/resume helpers the docs
drm: Document drm_connector_helper_funcs
...
WARN_ON() takes a condition rather than a format string. This patch
converted WARN_ON() to WARN() instead.
Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Create DSI encoders during modeset_init. The 2 encoders should ideally be
one command mode and one video mode DSI encoder respectively, but we don't
support command mode yet. We just create 2 of the same because the dsi
driver expects it, we end up using only the first one.
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
The mdp_kms round_pixclk op creates problems when we have more
interfaces in use. It calls the DTV encoder's helper by default.
Check on encoder type and call the corresponding encoder's
func meant for rounding pixel clock. DSI and LVDS don't require
rounding, so just return rate in their case.
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Create an mdp4 incoder for DSI. Only DSI video mode is supported as of
now.
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Vinay Simha BN <vinaysimha@inforcecomputing.com>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Currently, the driver defers if it doesn't find a drm_panel. This forces
us to have a drm_panel, if not, the driver isn't usable.
Make the lcdc encoder initialization independent of the availability of
the drm panel. We only check if there is a panel node specified in DT. If
it isn't, then we don't initialize the encoder at all. The panel node is
passed to the lcdc encoder and lvds connector drivers.
The connector driver takes the responsibility to retrieve the drm_panel
from the panel node, and update the status on whether the panel is
connected or not. This makes the panel usable even if the drm_panel
driver is inserted as a module later on.
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
modeset_init() for mdp4 isn't very flexible. That makes it hard to add
more interfaces.
Split out the encoder/connector creation code in modeset_init into a
separate function. This is similar to what's done in modeset_init for
mdp5.
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
We don't intend to use downstream non-DT kernels anymore, so remove
CONFIG_OF checks.
Update the TODO comment so that we don't forget about max_clk setting
for non APQ8064 chips having MDP4.
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
MDP5 has line count and frame count registers for each interface. Enable
these counters and use them to implement the get_vblank_timestamp drm
driver op.
The line counter starts with the value 1 at the beginning of the VSYNC
pulse and ends with value VTOTAL at the end of VFP. This value is used
to determine whether we're in blanking period or not, and an adjusted
value of this counter is used to get vpos as expected by
get_scanout_position. Since there is no way to calculate hpos, we always
set it to 0.
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Done with coccinelle for the most part. However, it thinks '...' is
part of the semantic patch, so I put an 'int DOTDOTDOT' placeholder
in its place and got rid of it with sed afterwards.
@@
identifier dev, encoder, funcs;
@@
int drm_encoder_init(struct drm_device *dev,
struct drm_encoder *encoder,
const struct drm_encoder_funcs *funcs,
int encoder_type
+ ,const char *name, int DOTDOTDOT
)
{ ... }
@@
identifier dev, encoder, funcs;
@@
int drm_encoder_init(struct drm_device *dev,
struct drm_encoder *encoder,
const struct drm_encoder_funcs *funcs,
int encoder_type
+ ,const char *name, int DOTDOTDOT
);
@@
expression E1, E2, E3, E4;
@@
drm_encoder_init(E1, E2, E3, E4
+ ,NULL
)
v2: Add ', or NULL...' to @name kernel doc (Jani)
Annotate the function with __printf() attribute (Jani)
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1449670818-2966-1-git-send-email-ville.syrjala@linux.intel.com
Done with coccinelle for the most part. It choked on
msm/mdp/mdp5/mdp5_plane.c like so:
"BAD:!!!!! enum drm_plane_type type;"
No idea how to deal with that, so I just fixed that up
by hand.
Also it thinks '...' is part of the semantic patch, so I put an
'int DOTDOTDOT' placeholder in its place and got rid of it with
sed afterwards.
I didn't convert drm_plane_init() since passing the varargs through
would mean either cpp macros or va_list, and I figured we don't
care about these legacy functions enough to warrant the extra pain.
@@
typedef uint32_t;
identifier dev, plane, possible_crtcs, funcs, formats, format_count, type;
@@
int drm_universal_plane_init(struct drm_device *dev,
struct drm_plane *plane,
unsigned long possible_crtcs,
const struct drm_plane_funcs *funcs,
const uint32_t *formats,
unsigned int format_count,
enum drm_plane_type type
+ ,const char *name, int DOTDOTDOT
)
{ ... }
@@
identifier dev, plane, possible_crtcs, funcs, formats, format_count, type;
@@
int drm_universal_plane_init(struct drm_device *dev,
struct drm_plane *plane,
unsigned long possible_crtcs,
const struct drm_plane_funcs *funcs,
const uint32_t *formats,
unsigned int format_count,
enum drm_plane_type type
+ ,const char *name, int DOTDOTDOT
);
@@
expression E1, E2, E3, E4, E5, E6, E7;
@@
drm_universal_plane_init(E1, E2, E3, E4, E5, E6, E7
+ ,NULL
)
v2: Split crtc and plane changes apart
Pass NUL for no-name instead of ""
Leave drm_plane_init() alone
v3: Add ', or NULL...' to @name kernel doc (Jani)
Annotate the function with __printf() attribute (Jani)
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1449670795-2853-1-git-send-email-ville.syrjala@linux.intel.com
Done with coccinelle for the most part. However, it thinks '...' is
part of the semantic patch, so I put an 'int DOTDOTDOT' placeholder
in its place and got rid of it with sed afterwards.
I didn't convert drm_crtc_init() since passing the varargs through
would mean either cpp macros or va_list, and I figured we don't
care about these legacy functions enough to warrant the extra pain.
@@
identifier dev, crtc, primary, cursor, funcs;
@@
int drm_crtc_init_with_planes(struct drm_device *dev,
struct drm_crtc *crtc,
struct drm_plane *primary, struct drm_plane *cursor,
const struct drm_crtc_funcs *funcs
+ ,const char *name, int DOTDOTDOT
)
{ ... }
@@
identifier dev, crtc, primary, cursor, funcs;
@@
int drm_crtc_init_with_planes(struct drm_device *dev,
struct drm_crtc *crtc,
struct drm_plane *primary, struct drm_plane *cursor,
const struct drm_crtc_funcs *funcs
+ ,const char *name, int DOTDOTDOT
);
@@
expression E1, E2, E3, E4, E5;
@@
drm_crtc_init_with_planes(E1, E2, E3, E4, E5
+ ,NULL
)
v2: Split crtc and plane changes apart
Pass NULL for no-name instead of ""
Leave drm_crtc_init() alone
v3: Add ', or NULL...' to @name kernel doc (Jani)
Annotate the function with __printf() attribute (Jani)
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1449670771-2751-1-git-send-email-ville.syrjala@linux.intel.com
This change adds the basic MDP5 support for MSM8996.
Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
In order to produce an image, the scalar needs to be fed extra
pixels. These top/bottom/left/right values depend on a various of
factors, including resolution, scaling type, phase step and
initial phase.
Pixel Extension are programmed by hardware in most targets - and
can be overwritten by software. For some targets (e.g.: msm8996),
software *must* program those registers.
In order to ease this computation, let's always use bilinear
filters, which are easier to program from kernel. Eventually,
all of these values will come down from user space for better
quality.
Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
When calculating phase steps, let's use the same enum
mdp_component_type in order to ease the readability; 0/1 indexes
are a bit confusing and we now have explicit values to index
this type of arrays.
Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
The current behavior is to try to get optional clocks and print a
dev_err message in case of failure. This looks rather confusing
and may increase with the amount of optional clocks.
We may need a cleaner way to handle per-device clocks but in the
meantime, let's reduce the amount of dev_err messages during the
probe.
Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
msm_iommu_new() can fail and this change makes sure that we
detect the failure and free the allocated domain before going
any further.
Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
We want to make sure we control all the information being passed
down to SMP block. Having access to the cfg pointer here may create
bad things in the future.
Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
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Merge tag 'v4.3-rc2' into topic/drm-misc
Backmerge Linux 4.3-rc2 because of conflicts in the dp helper code
between bugfixes and new code. Just adjacent lines really.
On top of that there's a silent conflict in the new fsl-dcu driver
merged into 4.3 and
commit 844f9111f6
Author: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Date: Wed Sep 2 10:42:40 2015 +0200
drm/atomic: Make prepare_fb/cleanup_fb only take state, v3.
which Thierry Reding spotted and provided a fixup for.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
set_irq_flags is ARM specific with custom flags which have genirq
equivalents. Convert drivers to use the genirq interfaces directly, so we
can kill off set_irq_flags. The translation of flags is as follows:
IRQF_VALID -> !IRQ_NOREQUEST
IRQF_PROBE -> !IRQ_NOPROBE
IRQF_NOAUTOEN -> IRQ_NOAUTOEN
For IRQs managed by an irqdomain, the irqdomain core code handles clearing
and setting IRQ_NOREQUEST already, so there is no need to do this in
.map() functions and we can simply remove the set_irq_flags calls. Some
users also modify IRQ_NOPROBE and this has been maintained although it
is not clear that is really needed. There appears to be a great deal of
blind copy and paste of this code.
Signed-off-by: Rob Herring <robh@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Russell King <linux@arm.linux.org.uk>
Cc: David Airlie <airlied@linux.ie>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This removes the need to separately track fb changes i915.
That will be done as a separate commit, however.
Changes since v1:
- Add dri-devel to cc.
- Fix a check in intel's prepare and cleanup fb to take rotation
into account.
Changes since v2:
- Split out i915 changes to a separate commit.
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
[danvet: Squash in msm fixup from Maarten.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Pending interrupt status needs to be cleared before enable the
interrupt. Otherwise it's possible to get a pending interrupt instead
of an incoming interrupt.
Signed-off-by: Jilai Wang <jilaiw@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
MDP5 SSPPs can flip the input source horizontally or vertically.
This change is to add this support to MDP5 planes.
v1: Initial change
v2: Use existing "rotation" property instead of creating msm specific
properties. In order to be compatiable with legacy non-atomic
set_property, switch to drm_atomic_helper_plane_set_property
helper function.
Signed-off-by: Jilai Wang <jilaiw@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Prepare the panel before it's enabled and un-prepare after disable, this
will make sure that the regulators are switched on and off correctly.
Tested it on APQ8064 based IFC6410 with panel.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
We currently get the output connected to LVDS by looking for a phandle
called 'qcom,lvds-panel' under the mdp DT node.
Use the more standard of_graph approach to create an lvds output port,
and retrieve the panel node from the port's endpoint data.
v3
- Fix return value checks of of_graph_* calls.
Tested-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
AHB clock should be enabled before accessing registers during
enable/disable_vblank(). Since these 2 callbacks are called in
atomic context while clk_prepare may cause thread sleep, a work
is scheduled to control vblanks.
v2: fixup spinlock initialization
Signed-off-by: Hai Li <hali@codeaurora.org>
[add comment about cancel_work_sync() before drm_irq_uninstall()]
Signed-off-by: Rob Clark <robdclark@gmail.com>
msm8x74v1 has different MDP5 version (v1.0) from msm8x74v2 (v1.2).
Add a separate config data to support msm8x74v1.
Signed-off-by: Jilai Wang <jilaiw@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
This change is to add planes which use DMA pipes for MDP5.
Signed-off-by: Jilai Wang <jilaiw@codeaurora.org>
[slight comment adjust to s/Construct public planes/Construct video
planes/ since DMA planes are public planes too, they just can't scale
or CSC]
Signed-off-by: Rob Clark <robdclark@gmail.com>
MDP planes can be implemented using different type of HW pipes,
RGB/VIG/DMA pipes for MDP5 and RGB/VG/DMA pipes for MDP4. Each type
of pipe has different HW capabilities such as scaling, color space
conversion, decimation... Add a variable in plane data structure
to specify the difference of each plane which comes from mdp5_cfg data
and use it to differenciate the plane operation.
V1: Initial change
V2: Fix a typo in mdp4_kms.h
Signed-off-by: Jilai Wang <jilaiw@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Add packed YUV422 and planar YUV420 formats to MDP supported
formats.
Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Newer MDP5 uses 2 shared memory pool clients for certain YUV formats.
For example, if VIG0 is used to fetch data in YUYV format, it will use
VIG0_Y for Y component, and VIG0_Cr for UV packed.
Signed-off-by: Wentao Xu <wentaox@codeaurora.org>
[rebase]
Signed-off-by: Stephane Viau <sviau@codeaurora.org>
This makes it easy to determine if a format is YUV. The old
method of using chroma sample type incorrectly marks YUV444 as
RGB format.
Signed-off-by: Wentao Xu <wentaox@codeaurora.org>
[rebase]
Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
This change takes advantage of a HW feature that synchronize
flush operation on CTL1 to CTL0, to keep dual DSI pipes in
sync.
Signed-off-by: Hai Li <hali@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
In MDP5, CTL contains information of the whole pipeline whose
output goes down to a display interface. In various cases, one
interface may require 2 CRTCs, but only one CTL. Some interfaces
also require to use certain CTLs.
Instead of allocating CTL for each active CRTC, this change is to
associate a CTL with each interface.
Signed-off-by: Hai Li <hali@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
This change is to add properties alpha/zpos/blend_mode to mdp5 plane
for alpha blending operation to generate the blended output.
v1: Initial change
v2: Change "premultilied" property to enum (Rob's comment)
Signed-off-by: Jilai Wang <jilaiw@codeaurora.org>
[Don't actually expose alpha/premultiplied props to userspace yet
pending a chance for discussion and some userspace to exercise it]
Signed-off-by: Rob Clark <robdclark@gmail.com>
This was a hold-over from the pre-atomic days and legacy userspace that
only understood CRTCs. Fortunately we don't have any properties, so
this doesn't change anything. But before we start growing some plane
properties, we should fix this.
Signed-off-by: Rob Clark <robdclark@gmail.com>
The maximum output width of one pipeline depends on the LayerMixer's
capability. It may be different on each target. Also, MDP5 doesn't
have vertical limitation in one frame, as long as the pixel clock
can be supported.
This change obtains the maximum LM resolution from configuration
table and treat it as the whole pipe's limitation for MDP5. The size
limit on MDP4 is not changed.
Signed-off-by: Hai Li <hali@codeaurora.org>
This change adds the MDP and HDMI support for msm8x94.
Note that HDMI PHY registers are not being accessed anymore from
the driver.
Signed-off-by: Stephane Viau <sviau@codeaurora.org>
[rename compatible s/8x94/8994/ since preference is to not trust the
marketing folks who invent chip #'s but instead name things after the
lead chip.. we should rename some 80XY to 89XY to standardize on the
lead chip but leave that for another patch. Also, update dt bindings
doc]
Signed-off-by: Rob Clark <robdclark@gmail.com>
Release all blocks after the pipe is disabled, even when vsync
didn't happen in some error cases. Allow requesting SMB multiple
times before configuring to hardware, by releasing blocks not
programmed to hardware yet for shrinking case.
This fixes a potential leak of shared memory pool blocks.
Signed-off-by: Wentao Xu <wentaox@codeaurora.org>
Tested-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
mdp4_get_frame_format() can dereference a drm_framebuffer when it's NULL.
Call it in mdp4_plane_mode_set only when we know fb is non-NULL.
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
In intel it's useful to keep track of some state changes with old
crtc state vs new state, for example to disable initial planes or
when a modeset's prevented during fastboot.
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com>
[danvet: squash in fixup for exynos provided by Maarten.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
That will complete the lists of Alpha + RGB formats.
Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
DSI video mode engine can only take active-high sync signals. This
change prevents MDP5 sending active-low sync signals to DSI in any
case.
Signed-off-by: Hai Li <hali@codeaurora.org>
Tested-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
CRTCs in DSI command mode data path should wait for pingpong done,
instead of vblank, to finish atomic commit.
This change is to enable PP_DONE irq on command mode CRTCs and wait for
this irq happens before atomic commit completion.
Signed-off-by: Hai Li <hali@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
MDP FLUSH registers could indicate if the previous flush updates
has taken effect at vsync boundary. Making use of this H/W feature
can catch the vsync that happened between CRTC atomic_flush and
*_wait_for_vblanks, to avoid unnecessary wait.
This change allows kms CRTCs to use their own *_wait_for_commit_done
functions to wait for FLUSH register cleared at vsync, before commit
completion.
Signed-off-by: Hai Li <hali@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Seems like disable can race with complete_flip() in process of disabling
a crtc, leading to:
[ 49.065364] Call trace:
[ 49.071441] [<ffffffc00041d5a0>] mdp5_ctl_blend+0x20/0x1c0
[ 49.073788] [<ffffffc00041ebcc>] mdp5_crtc_disable+0x3c/0xa8
[ 49.079348] [<ffffffc0003e7854>] disable_outputs.isra.4+0x11c/0x220
[ 49.085164] [<ffffffc0003e7afc>] drm_atomic_helper_commit_modeset_disables+0x14/0x38
[ 49.091155] [<ffffffc000425c80>] complete_commit+0x40/0xb8
[ 49.099136] [<ffffffc0004260ac>] msm_atomic_commit+0x364/0x398
[ 49.104430] [<ffffffc00040a614>] drm_atomic_commit+0x3c/0x70
[ 49.110249] [<ffffffc0003e67b8>] drm_atomic_helper_set_config+0x1b0/0x3e0
[ 49.116065] [<ffffffc0003f99bc>] drm_mode_set_config_internal+0x64/0xf8
[ 49.122746] [<ffffffc0003fa624>] drm_framebuffer_remove+0xe4/0x128
[ 49.129171] [<ffffffc0003feaf8>] drm_mode_rmfb+0xc0/0x100
[ 49.135420] [<ffffffc0003efba8>] drm_ioctl+0x258/0x4d0
[ 49.140889] [<ffffffc0001b0388>] do_vfs_ioctl+0x338/0x5d0
[ 49.145921] [<ffffffc0001b06a8>] SyS_ioctl+0x88/0xa0
It makes no sense to free the ctl without disabling all stages, so lets
just move them together to avoid the crash.
Signed-off-by: Rob Clark <robdclark@gmail.com>
Daniel Vetter