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path: root/drivers/gpu/drm/drm_crtc_helper.c
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2019-08-16drm: Remove bridge support from legacy helpersLaurent Pinchart1-32/+0
DRM bridges are only used by atomic drivers, and none of them use the legacy helpers. Drop bridge support from those helpers to prepare for making the bridge operations atomic-aware. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Sean Paul <seanpaul@chromium.org> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2019-05-27drm: drop use of drmP.h in drm/*Sam Ravnborg1-6/+8
The use of the drmP.h header file is deprecated. Remove use from all files in drm/* so people do not look there and follow a bad example. Build tested allyesconfig,allmodconfig on x86, arm etc. Including alpha that is as always more challenging than the rest. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Daniel Vetter <daniel@ffwll.ch> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <maxime.ripard@bootlin.com> Cc: Sean Paul <sean@poorly.run> Cc: David Airlie <airlied@linux.ie> Link: https://patchwork.freedesktop.org/patch/msgid/20190526173535.32701-8-sam@ravnborg.org
2019-01-15drm: Remove use of drm_mode_objectShayenne Moura1-3/+2
This patch removes the drm_mode_object prints, evaluation and use from drm_display_mode objects used in drm files. It removes dependency from drm_mode_object. Signed-off-by: Shayenne Moura <shayenneluzmoura@gmail.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/785896b0a551464d0b780a55411707300802d6b6.1547214023.git.shayenneluzmoura@gmail.com
2019-01-11drm: Move the legacy kms disable_all helper to crtc helpersDaniel Vetter1-0/+35
It's not a core function, and the matching atomic functions are also not in the core. Plus the suspend/resume helper is also already there. Needs a tiny bit of open-coding, but less midlayer beats that I think. v2: Rebase onto ast (which gained a new user). Cc: Sam Bobroff <sbobroff@linux.ibm.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Sean Paul <sean@poorly.run> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <maxime.ripard@bootlin.com> Cc: Sean Paul <sean@poorly.run> Cc: David Airlie <airlied@linux.ie> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: "Christian König" <christian.koenig@amd.com> Cc: "David (ChunMing) Zhou" <David1.Zhou@amd.com> Cc: Rex Zhu <Rex.Zhu@amd.com> Cc: Andrey Grodzovsky <andrey.grodzovsky@amd.com> Cc: Huang Rui <ray.huang@amd.com> Cc: Shaoyun Liu <Shaoyun.Liu@amd.com> Cc: Monk Liu <Monk.Liu@amd.com> Cc: nouveau@lists.freedesktop.org Cc: amd-gfx@lists.freedesktop.org Link: https://patchwork.freedesktop.org/patch/msgid/20181217194303.14397-4-daniel.vetter@ffwll.ch
2019-01-10drm/crtc-helpers: WARN when used with atomic driversDaniel Vetter1-4/+14
Motivated by an oversight of mine when looking at the atomic bochs conversion. For consistency also switch over to the same style as used elsewhere (e.g. in drm_mode_set_config_internal). Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Noralf Trønnes <noralf@tronnes.org> Reviewed-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190110103045.26821-1-daniel.vetter@ffwll.ch
2018-10-05drm: Remove transitional helpersDaniel Vetter1-115/+0
With armada the last bigger driver that realistically needed these to convert from legacy kms to atomic is converted. These helpers have been broken more often than not the past 2 years, and as this little patch series shows, tricked a bunch of people into using the wrong helpers for their functions. Aside: I think a lot more drivers should be using the device-level drm_atomic_helper_shutdown/suspend/resume helpers and related functions. In almost all the cases they get things exactly right. Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20181004202446.22905-16-daniel.vetter@ffwll.ch
2018-09-09drm: extract drm_atomic_uapi.cDaniel Vetter1-0/+1
This leaves all the commit/check and state handling in drm_atomic.c, while pulling all the uapi glue and the huge ioctl itself into a seprate file. This seems to almost perfectly split the rather big drm_atomic.c file into 2 equal sizes. Also adjust the kerneldoc and type a very terse overview text. v2: Rebase. v3: Fix tiny typo. v4: - Fixup armada, newly converted atomic driver hooray! - Fixup msm/dpu1, newly added too. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: David Airlie <airlied@linux.ie> Cc: Gustavo Padovan <gustavo@padovan.org> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Sean Paul <seanpaul@chromium.org> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Rob Clark <robdclark@gmail.com> Cc: Eric Anholt <eric@anholt.net> Cc: intel-gfx@lists.freedesktop.org Cc: linux-arm-msm@vger.kernel.org Cc: freedreno@lists.freedesktop.org Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180905135711.28370-7-daniel.vetter@ffwll.ch
2017-10-13drm: Replace kzalloc with kcallocHarsha Sharma1-2/+2
Prefer kcalloc over kzalloc to allocate an array. This patch fixes checkcpatch issue. Signed-off-by: Harsha Sharma <harshasharmaiitr@gmail.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/20171013073747.29877-1-harshasharmaiitr@gmail.com Link: https://patchwork.freedesktop.org/patch/msgid/20171013073747.29877-1-harshasharmaiitr@gmail.com
2017-08-08drm: Handle properties in the core for atomic driversDaniel Vetter1-2/+1
The reason behind the original indirection through the helper functions was to allow existing drivers to overwrite how they handle properties. For example when a vendor-specific userspace had expectations that didn't match atomic. That seemed likely, since atomic is standardizing a _lot_ more of the behaviour of a kms driver. But 20 drivers later there's no such need at all. Worse, this forces all drivers to hook up the default behaviour, breaking userspace if they forget to do that. And it forces us to export a bunch of core function just for those helpers. And finally, these helpers are the last places using drm_atomic_legacy_backoff() and the implicit acquire_ctx. This patch here just implements the new behaviour and updates the docs. Follow-up patches will garbage-collect all the dead code. v2: Fixup docs even better! v3: Make it actually work ... v4: Drop the uses_atomic_modeset() checks from the previous patch again, since they're now moved up in the callchain. Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Archit Taneja <architt@codeaurora.org> (v3) Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170725120204.2107-1-daniel.vetter@ffwll.ch
2017-03-29drm: Add acquire ctx parameter to ->set_configDaniel Vetter1-1/+3
Surprisingly a lot of legacy drivers roll their own, for runtime pm and because vmwgfx. Also make nouveau's set_config static while at it. Cc: Sinclair Yeh <syeh@vmware.com> Cc: Thomas Hellstrom <thellstrom@vmware.com> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Christian König <christian.koenig@amd.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170322215058.8671-19-daniel.vetter@ffwll.ch
2017-02-28drm: Rename connector list iterator APIThierry Reding1-18/+18
Currently the functions that initialize and tear down a connector iterator use the _get() and _put() suffixes. However, these suffixes are typically used by reference counting functions. Make these function names a little more consistent by changing the suffixes to _begin() and _end(), which is a fairly common pattern in the rest of the Linux kernel. Suggested-by: Jani Nikula <jani.nikula@linux.intel.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170228144643.5668-8-thierry.reding@gmail.com
2017-02-28drm: Introduce drm_connector_{get,put}()Thierry Reding1-3/+3
For consistency with other reference counting APIs in the kernel, add drm_connector_get() and drm_connector_put() functions to reference count connectors. Compatibility aliases are added to keep existing code working. To help speed up the transition, all the instances of the old functions in the DRM core are already replaced in this commit. The existing semantic patch for mode object reference count conversion is extended for these new helpers. Reviewed-by: Sean Paul <seanpaul@chromium.org> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170228144643.5668-4-thierry.reding@gmail.com
2017-01-25drm/kms-helpers: Use recommened kerneldoc for struct member refsDaniel Vetter1-14/+14
I just learned that &struct_name.member_name works and looks pretty even. It doesn't (yet) link to the member directly though, which would be really good for big structures or vfunc tables (where the per-member kerneldoc tends to be long). Also some minor drive-by polish where it makes sense, I read a lot of docs ... v2: Comments from Gustavo. Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Rewiewed-by: Gustavo Padovan <gustavo.padovan@collabora.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170125062657.19270-2-daniel.vetter@ffwll.ch
2016-12-30drm/doc: use preferred struct reference in kernel-docDaniel Vetter1-7/+7
sed -e 's/\( \* .*\)struct &\([_a-z]*\)/\1\&struct \2/' -i Originally I wasnt a friend of this style because I thought a line-break between the "&struct" and "foo" part would break it. But a quick test shows that " * &struct \n * foo\n" works pefectly well with current kernel-doc. So time to mass-apply these changes! Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1483044517-5770-6-git-send-email-daniel.vetter@ffwll.ch
2016-12-18drm: Convert all helpers to drm_connector_list_iterDaniel Vetter1-11/+38
Mostly nothing special (except making sure that really all error paths and friends call iter_put). v2: Don't forget the raw connector_list walking in drm_helper_move_panel_connectors_to_head. That one unfortunately can't be converted to the iterator helpers, but since it's just some list splicing best to just wrap the entire thing up in one critical section. v3: Bail out after iter_put (Harry). Cc: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20161215155843.13408-1-daniel.vetter@ffwll.ch
2016-12-18drm: Don't include <drm/drm_encoder.h> in <drm/drm_crtc.h>Laurent Pinchart1-0/+1
<drm/drm_crtc.h> used to define most of the in-kernel KMS API. It has now been split into separate files for each object type, but still includes most other KMS headers to avoid breaking driver compilation. As a step towards fixing that problem, remove the inclusion of <drm/drm_encoder.h> from <drm/drm_crtc.h> and include it instead where appropriate. Also remove the forward declarations of the drm_encoder and drm_encoder_helper_funcs structures from <drm/drm_crtc.h> as they're not needed in the header. <drm/drm_encoder.h> now has to include <drm/drm_mode.h> and contain a forward declaration of struct drm_encoder in order to allow including it as the first header in a compilation unit. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Sinclair Yeh <syeh@vmware.com> # For vmwgfx Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Archit Taneja <architt@codeaurora.org> Link: http://patchwork.freedesktop.org/patch/msgid/1481709550-29226-2-git-send-email-laurent.pinchart+renesas@ideasonboard.com
2016-12-15drm: Replace 'format->format' comparisons to just 'format' comparisonsVille Syrjälä1-2/+1
Rather than compare the format u32s of two format infos, we can direclty compare the format info pointers themselves. Noramlly all the ->format pointers all point to somwehere in the big array, so this is a valid way to test for equality. Also drivers may want to point ->format at a private format info struct instead (eg. for special compressed formats with extra planes), so just comparing the pixel format values wouldn't necessaritly even work. But comparing the pointers will also take care of that case. @@ struct drm_framebuffer *a; struct drm_framebuffer *b; @@ ( - a->format->format != b->format->format + a->format != b->format | - a->format->format == b->format->format + a->format == b->format ) @@ struct drm_plane_state *a; struct drm_plane_state *b; @@ ( - a->fb->format->format != b->fb->format->format + a->fb->format != b->fb->format | - a->fb->format->format == b->fb->format->format + a->fb->format == b->fb->format ) @@ struct drm_crtc *crtc; struct drm_framebuffer *x; @@ ( - crtc->primary->fb->format->format != x->format->format + crtc->primary->fb->format != x->format | - x->format->format != crtc->primary->fb->format->format + x->format != crtc->primary->fb->format ) @@ struct drm_mode_set *set; @@ - set->fb->format->format != set->crtc->primary->fb->format->format + set->fb->format != set->crtc->primary->fb->format Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1479498793-31021-35-git-send-email-ville.syrjala@linux.intel.com Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2016-12-15drm: Nuke fb->pixel_formatVille Syrjälä1-2/+2
Replace uses of fb->pixel_format with fb->format->format. Less duplicated information is a good thing. Note that coccinelle failed to eliminate the "/* fourcc format */" comment from drm_framebuffer.h, so I had to do that part manually. @@ struct drm_framebuffer *FB; expression E; @@ drm_helper_mode_fill_fb_struct(...) { ... - FB->pixel_format = E; ... } @@ struct drm_framebuffer *FB; expression E; @@ i9xx_get_initial_plane_config(...) { ... - FB->pixel_format = E; ... } @@ struct drm_framebuffer *FB; expression E; @@ ironlake_get_initial_plane_config(...) { ... - FB->pixel_format = E; ... } @@ struct drm_framebuffer *FB; expression E; @@ skylake_get_initial_plane_config(...) { ... - FB->pixel_format = E; ... } @@ struct drm_framebuffer *a; struct drm_framebuffer b; @@ ( - a->pixel_format + a->format->format | - b.pixel_format + b.format->format ) @@ struct drm_plane_state *a; struct drm_plane_state b; @@ ( - a->fb->pixel_format + a->fb->format->format | - b.fb->pixel_format + b.fb->format->format ) @@ struct drm_crtc *CRTC; @@ ( - CRTC->primary->fb->pixel_format + CRTC->primary->fb->format->format | - CRTC->primary->state->fb->pixel_format + CRTC->primary->state->fb->format->format ) @@ struct drm_mode_set *set; @@ ( - set->fb->pixel_format + set->fb->format->format | - set->crtc->primary->fb->pixel_format + set->crtc->primary->fb->format->format ) @@ @@ struct drm_framebuffer { ... - uint32_t pixel_format; ... }; v2: Fix commit message (Laurent) Rebase due to earlier removal of many fb->pixel_format uses, including the 'fb->format = drm_format_info(fb->format->format);' snafu v3: Adjusted the semantic patch a bit and regenerated due to code changes Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> (v1) Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Link: http://patchwork.freedesktop.org/patch/msgid/1481751175-18463-1-git-send-email-ville.syrjala@linux.intel.com
2016-08-16drm/kms-helpers: Extract drm_modeset_helper.[hc]Daniel Vetter1-56/+0
While reviewing docs I spotted that we have a few functions that really just don't fit into their containing helper library section. Extract them and shovel them all into a new library for random one-off aux stuff. v2: Remove wrongly added files for real. Cc: Sean Paul <seanpaul@chromium.org> Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1471034937-651-3-git-send-email-daniel.vetter@ffwll.ch
2016-07-02Back-merge tag 'v4.7-rc5' into drm-nextDave Airlie1-26/+28
Linux 4.7-rc5 The fsl-dcu pull needs -rc3 so go to -rc5 for now.
2016-06-21drm/crtc-helper: disable_unused_functions really isn't for atomicDaniel Vetter1-0/+3
Rockchip just blew up here on testing, because I removed some "is this crtc already disabled/enabled" state tracking from callbacks (not needed with atomic). Turns out that was needed to work around rockchip still calling legacy helper code. Since me explaining on irc/mailing-list plus kerneldoc isn't enough, be more verbose and add dmesg output. Not that anyone actually reads that, either. Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1465388359-8070-26-git-send-email-daniel.vetter@ffwll.ch
2016-06-15drm/crtc: only store the necessary data for set_config rollbackPhilipp Zabel1-18/+18
drm_crtc_helper_set_config only potentially touches connector->encoder and encoder->crtc, so we only have to store those for all connectors and encoders, respectively. Suggested-by: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-06-15drm/crtc: fix connector reference counting mismatch in ↵Philipp Zabel1-8/+10
drm_crtc_helper_set_config Since commit 0955c1250e96 ("drm/crtc: take references to connectors used in a modeset. (v2)"), the reference counts of all connectors in the drm_mode_set given to drm_crtc_helper_set_config are incremented, and then the reference counts of all connectors are decremented on success, but in a temporary copy of the connector structure. This leads to the following error after the first modeset on imx-drm: Unable to handle kernel NULL pointer dereference at virtual address 00000004 pgd = ad8c4000 [00000004] *pgd=3d9c5831, *pte=00000000, *ppte=00000000 Internal error: Oops: 817 [#1] PREEMPT SMP ARM Modules linked in: CPU: 1 PID: 190 Comm: kmsfb-manage Not tainted 4.7.0-rc1+ #657 Hardware name: Freescale i.MX6 Quad/DualLit: [<80506098>] lr : [<80252e94>] psr: 200c0013 sp : adca7ca8 ip : adca7b90 fp : adca7cd4 r10: 00000000 r9 : 00000100 r8 : 00000200 r7 : af3c9800 r6 : aded7848 r5 : aded7800 r4 : 00000000 r3 : af3ca058 r2 : 00000200 r1 : af3ca058 r0 : 00000000 Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 10c5387d Table: 3d8c404a DAC: 00000051 Process kmsfb-manage (pid: 190, stack limit = 0xadca6210) Stack: (0xadca7ca8 to 0xadca8000) 7ca0: 805190e0 aded7800 aded7820 80501a88 8155a290 af3c9c6c 7cc0: adca7ddc 0000000f adca7cec adca7cd8 80519104 80506044 805190e0 aded7800 7ce0: adca7d04 adca7cf0 80501ac0 805190ec aded7820 aded7814 adca7d24 adca7d08 7d00: 804fdb80 80501a94 aded7800 af3ca010 aded7afc af3c9c60 adca7d94 adca7d28 7d20: 804e3518 804fdb20 00000000 af3c9b1c adca7d50 81506f44 00000000 8093c500 7d40: af3c9c6c ae4f2ca8 ae4f2c18 00000000 00000000 ae637f00 00000000 aded7800 7d60: 00000001 af3c9800 af23c300 ae77fcc0 ae4f2c18 00000001 af3c9800 8155a290 7d80: af1af700 adca6000 adca7db4 adca7d98 804fea6c 804e2de4 adca7e50 adb3d940 7da0: 00000001 af3c9800 adca7e24 adca7db8 8050440c 804fea0c ae77fcc0 00000003 7dc0: adca7e24 adb3d940 af1af700 ae77fcc0 ae77fccc ae4f2c18 8083d44c ae77fcc0 7de0: ae4002 80d03040 adca7e64 adca7e40 adca7e50 80503f08 7e40: 7ebd5630 adca7e50 00000068 c06864a2 7ebd5be8 00000000 00000001 00000018 7e60: 00000026 00000000 00000000 00000000 00000001 000115bc 05010500 05a0059f 7e80: 03200000 03360321 00000337 0000003c 00000000 00000040 30383231 30303878 7ea0: 00000000 00000000 00000000 00000000 00000000 00000000 80173058 80172e30 7ec0: 80d77d32 00004000 adf7d900 00000003 00000000 7ebd5630 af342bb0 adfe3b80 7ee0: 80272f50 00000003 adca6000 00000000 adca7f7c adca7f00 802725ec 804f52cc 7f00: 802809cc 80178450 00000000 00000000 80280880 80145904 adb3d8c0 adf7d990 7f20: ffffffff 00000003 00004000 01614c10 c06864a2 00000003 adca6000 00000000 7f40: adca7f6c adca7f50 80280b04 8028088c 000115bc adfe3b81 7ebd5630 adfe3b80 7f60: c06864a2 00000003 adca6000 00000000 adca7fa4 adca7f80 80272f50 80272548 7f80: 000115bc 00017050 00000001 01614c10 00000036 801089e4 00000000 adca7fa8 7fa0: 80108840 80272f18 00017050 00000001 00000003 c06864a2 7ebd5630 000115bc 7fc0: 00017050 00000001 01614c10 00000036 00000003 00000000 00000026 00000018 7fe0: 00016f38 7ebd562c 0000b5e9 76ef31e6 400c0030 00000003 ff5f37db bfe7dd4d Backtrace: [<80506038>] (drm_connector_cleanup) from [<80519104>] (dw_hdmi_connector_destroy+0x24/0x28) r10:0000000f r9:adca7ddc r8:af3c9c6c r7:8155a290 r6:80501a88 r5:aded7820 r4:aded7800 r3:805190e0 [<805190e0>] (dw_hdmi_connector_destroy) from [<80501ac0>] (drm_connector_free+0x38/0x3c) r4:aded7800 nreference) from [<804e3518>] (drm_crtc_helper_set_config+0x740/0xbf4) r6:af3c9c60 r5:aded7afc r4:af3ca010 r3:aded7800 [<804e2dd8>] (drm_crtc_helper_set_config) from [<804fea6c>] (drm_mode_set_config_internal+0x6c/0xf4) r10:adca6000 r9:af1af700 r8:8155a290 r7:af3c9800 r6:00000001 r5:ae4f2c18 r4:ae77fcc0 [<804fea00>] (drm_mode_set_config_internal) from [<8050440c>] (drm_mode_setcrtc+0x504/0x57c) r7:af3c9800 r6:00000001 r5:adb3d940 r4:adca7e50 [<80503f08>] (drm_mode_setcrtc) from [<804f5404>] (drm_ioctl+0x144/0x4dc) r10:ada2e000 r9:000000a2 r8:af3c9800 r7:8155a290 r6:809320b4 r5:00000051 r4:adca7e50 [<804f52c0>] (drm_ioctl) from [<802725ec>] (do_vfs_ioctl+0xb0/0x9d0) r10:00000000 r9:adca6000 r8:00000003 r7:80272f50 r6:adfe3b80 r5:af342bb0 r4:7ebd5630 [<8027253c>] (do_vfs_ioctl) from [<80272f50>] (SyS_ioctl+0x44/0x6c) r10:00000000 r9:adca6000 r8:00000003 r7:c06864a2 r6:adfe3b80 r5:7ebd5630 r4:adfe3b81 [<80272f0c>] (SyS_ioctl) from [<80108840>] (ret_fast_syscall+0x0/0x1c) r8:801089e4 r7:00000036 r6:01614c10 r5:00000001 r4:00017050 r3:000115bc Code: 0a00000c e5932004 e1a01003 e1a0a004 (e5842004) ---[ end trace 9a7257572ccacb16 ]--- Only the reference count of connectors that weren't previously bound to an encoder should be incremented after a call to drm_crtc_helper_set_config. And only the reference count of connectors that were previously bound to an encoder and are unbound afterwards should ever be decremented. The reference counts of the temporary copies in the save_connectors should not be touched at all. This patch fixes the above error by only incrementing the reference count of those connectors in the set that are initially not bound to any encoder, and also by restoring the reference count of only those connectors in the set in the failure case. "Note that this can only be hit when fbdev emulation is disabled, since then the refcount drops from 1 to 0 and we call the connector destroy functions on the backup copy, which eventually results in tears. With fbdev emulation the refcount only goes down from 2 to 1 ever. And since we unconditionally increment the refcount on the real object, the refcount of that will slowly increase. The backup connector's refcount doesn't matter, since we kfree() that either way in the end of drm_crtc_helper_set_config()." Fixes: 0955c1250e96 ("drm/crtc: take references to connectors used in a modeset. (v2)") Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-06-07drm: drm_helper_crtc_enable_color_mgmt() => drm_crtc_enable_color_mgmt()Jyri Sarha1-33/+0
Add drm_crtc_enable_color_mgmt(), remove drm_helper_crtc_enable_color_mgmt() and update drm/i915-driver (the only user of the old function). The new function is more flexible. It allows driver to enable only the features it has without forcing to enable all three color management properties: degamma lut, csc matrix (ctm), and gamma lut. Suggested-by: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Jyri Sarha <jsarha@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2016-05-10drm: Make drm_encoder_helper_funcs optionalNoralf Trønnes1-8/+33
Make drm_encoder_helper_funcs and it's functions optional to avoid having dummy functions. Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1462454674-2246-3-git-send-email-noralf@tronnes.org
2016-05-05drm/crtc: take references to connectors used in a modeset. (v2)Dave Airlie1-0/+19
This just takes a reference on the connector when we set a mode in the non-atomic paths. v2: Follow Daniel Stone's suggestions on when to take/drop references. Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Daniel Stone <daniels@collabora.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-04-14drm/crtc_helper: Reset empty plane state in drm_helper_crtc_mode_set_base()Liu Ying1-3/+5
Transitional drivers might access the NULL pointer plane->state in drm_helper_crtc_mode_set_base(), which causes NULL pointer dereference. So, let's reset it before handing it over to those drivers. commit e4f31ad2b713 ("drm: reset empty state in transitional helpers") did the same thing for other transitional helpers, but it seems this one was missed. Signed-off-by: Liu Ying <gnuiyl@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1459846239-8946-1-git-send-email-gnuiyl@gmail.com
2016-03-08drm: introduce pipe color correction propertiesLionel Landwerlin1-0/+33
Patch based on a previous series by Shashank Sharma. This introduces optional properties to enable color correction at the pipe level. It relies on 3 transformations applied to every pixels displayed. First a lookup into a degamma table, then a multiplication of the rgb components by a 3x3 matrix and finally another lookup into a gamma table. The following properties can be added to a pipe : - DEGAMMA_LUT : blob containing degamma LUT - DEGAMMA_LUT_SIZE : number of elements in DEGAMMA_LUT - CTM : transformation matrix applied after the degamma LUT - GAMMA_LUT : blob containing gamma LUT - GAMMA_LUT_SIZE : number of elements in GAMMA_LUT DEGAMMA_LUT_SIZE and GAMMA_LUT_SIZE are read only properties, set by the driver to tell userspace applications what sizes should be the lookup tables in DEGAMMA_LUT and GAMMA_LUT. A helper is also provided so legacy gamma correction is redirected through these new properties. v2: Register LUT size properties as range v3: Fix round in drm_color_lut_get_value() helper More docs on how degamma/gamma properties are used v4: Update contributors v5: Rename CTM_MATRIX property to CTM (Doh!) Add legacy gamma_set atomic helper Describe CTM/LUT acronyms in the kernel doc v6: Fix missing blob unref in drm_atomic_helper_crtc_reset Signed-off-by: Shashank Sharma <shashank.sharma@intel.com> Signed-off-by: Kumar, Kiran S <kiran.s.kumar@intel.com> Signed-off-by: Kausal Malladi <kausalmalladi@gmail.com> Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Reviewed-by: Matt Roper <matthew.d.roper@intel.com> Acked-by: Rob Bradford <robert.bradford@intel.com> [danvet: CrOS maintainers are also happy with the userspacde side: https://codereview.chromium.org/1182063002/ ] Reviewed-by: Daniel Stone <daniels@collabora.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1456506302-640-4-git-send-email-lionel.g.landwerlin@intel.com
2016-02-16drm: fixes crct set_mode when crtc mode_fixup is null.Carlos Palminha1-3/+6
This patch set nukes all the dummy crtc mode_fixup implementations. (made on top of Daniel topic/drm-misc branch) Signed-off-by: Carlos Palminha <palminha@synopsys.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/9d41105dee6632b4bb50e9555f2196ac249b9fce.1455630967.git.palminha@synopsys.com
2016-02-12drm/kms_helper: Add a common place to call init and exit functions.Rafael Antognolli1-3/+0
The module_init and module_exit functions will start here, and call the subsequent init's and exit's. v10: - Keep __init on drm_fb_helper init function. - Move MODULE_* macros to the common file. Signed-off-by: Rafael Antognolli <rafael.antognolli@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1453417821-2811-2-git-send-email-rafael.antognolli@intel.com
2016-02-11drm: fixes crct set_mode when encoder mode_fixup is null.Carlos Palminha1-4/+6
Avoids null crash when encoders don't implement mode_fixup. Signed-off-by: Carlos Palminha <palminha@synopsys.com> [danvet: Also update kerneldoc.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1455106522-32307-1-git-send-email-palminha@synopsys.com
2016-01-25drm/crtc-helper: Add caveat to disable_unused_functions docDaniel Vetter1-0/+9
This shouldn't be used by atomic drivers any more, it confuses the state tracking. Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Link: http://patchwork.freedesktop.org/patch/msgid/1452695476-31147-1-git-send-email-daniel.vetter@ffwll.ch Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2016-01-18drm/crtc_helper/set_config: Remove redundant NULL pointer check on set->modeLiu Ying1-1/+1
We've done sanity NULL pointer check on set->mode at the beginning of drm_crtc_helper_set_config() and bailed out if necessary, thus any later on check is redundant. Signed-off-by: Liu Ying <gnuiyl@gmail.com> Link: http://patchwork.freedesktop.org/patch/msgid/1452751210-19216-2-git-send-email-gnuiyl@gmail.com Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-18drm/crtc_helper/set_config: Remove redundant handling when set->fb is NULLLiu Ying1-2/+0
We've done sanity NULL pointer check on set->fb at the beginning of drm_crtc_helper_set_config() and bailed out if necessary, thus any later on check or case handling is redundant. Signed-off-by: Liu Ying <gnuiyl@gmail.com> Link: http://patchwork.freedesktop.org/patch/msgid/1452751210-19216-1-git-send-email-gnuiyl@gmail.com Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-12-11drm: Add crtc->name and use it in debug messagesVille Syrjälä1-11/+13
Show a sensible name for the crtc in debug mesages. The driver may supply its own name, otherwise the core genrates the name ("crtc-0", "crtc-1" etc.). v2: kstrdup() the name passed by the caller (Jani) v3: Generate a default name if the driver doesn't supply one 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/1449592922-5545-6-git-send-email-ville.syrjala@linux.intel.com
2015-12-08drm: Merge helper docbook into kerneldoc commentsDaniel Vetter1-13/+51
Duplication is bad, luckily both help texts highlighted different issues so the kerneldoc gained quite a bit! While at it also sprinkle more references to the vtable structs around and make it clear that legacy CRTC helpers are deprecated and which functions to use instead. v2: Spelling fixes and polish (Thierry). Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1449218769-16577-6-git-send-email-daniel.vetter@ffwll.ch Reviewed-by: Thierry Reding <treding@nvidia.com>
2015-12-08drm: Reorganize helper vtables and their docsDaniel Vetter1-0/+5
Currently we have 4 helper libraries (probe, crtc, plane & atomic) that all use the same helper vtables. And that's by necessity since we don't want to litter the core structs with one ops pointer per helper library. Also often the reuse the same hooks (like atomic does, to facilite conversion from existing drivers using crtc and plane helpers). Given all that it doesn't make sense to put the docs for these next to specific helpers. Instead extract them into a new header file and section in the docbook, and add references to them everywhere. Unfortunately kernel-doc complains when an include directive doesn't find anything (and it does by dumping crap into the output file). We have to remove the now empty includes to avoid that, instead of leaving them in for future proofing. v2: More OCD in ordering functions. v3: Spelling plus collate copyright headers properly. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1449218769-16577-4-git-send-email-daniel.vetter@ffwll.ch Reviewed-by: Thierry Reding <treding@nvidia.com>
2015-12-02drm/atomic-helper: Implement subsystem-level suspend/resumeThierry Reding1-0/+6
Provide subsystem-level suspend and resume helpers that can be used to implement suspend/resume on atomic mode-setting enabled drivers. v2: simplify locking, enhance kerneldoc comments v3: pass lock acquisition context by parameter, improve kerneldoc v4: - remove redundant code (already provided by atomic helpers) (Maarten Lankhorst) - move backoff dance from drm_modeset_lock_all_ctx() into suspend helper (Daniel Vetter) v5: handle potential EDEADLK from drm_atomic_helper_duplicate_state() and drm_atomic_helper_disable_all() (Daniel Vetter) Signed-off-by: Thierry Reding <treding@nvidia.com> Link: http://patchwork.freedesktop.org/patch/msgid/1449075005-13937-2-git-send-email-thierry.reding@gmail.com Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-11-24drm: Pass the user drm_mode_fb_cmd2 as const to .fb_create()Ville Syrjälä1-1/+1
Drivers shouldn't clobber the passed in addfb ioctl parameters. i915 was doing just that. To prevent it from happening again, pass the struct around as const, starting all the way from internal_framebuffer_create(). Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-07-27drm: Make the connector dpms callback return a value, v2.Maarten Lankhorst1-3/+6
This is required to properly handle failing dpms calls. When making a wait in i915 interruptible, I've noticed that the dpms sequence could fail with -ERESTARTSYS because it was waiting interruptibly for flips. So from now on allow drivers to fail in their connector dpms callback. Encoder and crtc dpms callbacks are unaffected. Changes since v1: - Update kerneldoc for the drm helper functions. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> [danvet: Resolve conflicts due to different merge order.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-07-24Merge tag 'topic/connector-locking-2015-07-23' of ↵Dave Airlie1-21/+21
git://anongit.freedesktop.org/drm-intel into drm-next connector hotplug locking cleanup and fixes to make it save against atomic. Note that because of depencies this is based on top of the drm-intel-next pull, so that one needs to go in before this one. I've also thrown in the mode_group removal on top since it's defunct, never worked really, no one seems to care and the code can be resurrected easily. * tag 'topic/connector-locking-2015-07-23' of git://anongit.freedesktop.org/drm-intel: drm: gc now dead mode_group code drm: Stop filtering according to mode_group in getresources drm: Roll out drm_for_each_{plane,crtc,encoder} drm/cma-helper: Fix locking in drm_fb_cma_debugfs_show drm: Roll out drm_for_each_connector more drm: Amend connector list locking rules drm/radeon: Take all modeset locks for DP MST hotplug drm/i915: Take all modeset locks for DP MST hotplug drm: Check locking in drm_for_each_fb drm/i915: Use drm_for_each_fb in i915_debugfs.c drm: Check locking in drm_for_each_connector drm/fbdev-helper: Grab mode_config.mutex in drm_fb_helper_single_add_all_connectors drm/probe-helper: Grab mode_config.mutex in poll_init/enable drm: Add modeset object iterators drm: Simplify drm_for_each_legacy_plane arguments
2015-07-22drm: Roll out drm_for_each_{plane,crtc,encoder}Daniel Vetter1-1/+1
Remaining manual work in the drm core&helpers. Nothing special here, no surprises. Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2015-07-22drm: Roll out drm_for_each_connector moreDaniel Vetter1-3/+3
Now that we also grab the connection_mutex and so fixed the race with atomic modeset we can use the iterator there too. The other special case is drm_connector_unplug_all which would have a locking inversion with the sysfs store/show functions if we'd grab the mode_config.mutex around the unplug. We could just grab connection_mutex instead, but that's a bit too much a dirty trick for my taste. Also it's only used by udl, which doesn't do any other kind of connector hotplugging, so should be race-free. Hence just stick with a comment for now. Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2015-07-22drm: Add modeset object iteratorsDaniel Vetter1-17/+17
And roll them out across drm_* files. The point here isn't code prettification (it helps with that too) but that some of these lists aren't static any more. And having macros will gives us a convenient place to put locking checks into. I didn't add an iterator for props since that's only used by a list_for_each_entry_safe in the driver teardown code. Search&replace was done with the below cocci spatch. Note that there's a bunch more places that didn't match and which would need some manual changes, but I've intentially left these out for this mostly automated patch. iterator name drm_for_each_crtc; struct drm_crtc *crtc; struct drm_device *dev; expression head; @@ - list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { + drm_for_each_crtc (crtc, dev) { ... } @@ iterator name drm_for_each_encoder; struct drm_encoder *encoder; struct drm_device *dev; expression head; @@ - list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { + drm_for_each_encoder (encoder, dev) { ... } @@ iterator name drm_for_each_fb; struct drm_framebuffer *fb; struct drm_device *dev; expression head; @@ - list_for_each_entry(fb, &dev->mode_config.fb_list, head) { + drm_for_each_fb (fb, dev) { ... } @@ iterator name drm_for_each_connector; struct drm_connector *connector; struct drm_device *dev; expression head; @@ - list_for_each_entry(connector, &dev->mode_config.connector_list, head) { + drm_for_each_connector (connector, dev) { ... } Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2015-07-03drm: reset empty state in transitional helpersDaniel Vetter1-3/+5
Transitional drivers might not have all the state frobbing lined up yet. But since the initial code has been merged a lot more state was added, so we really need this. Cc: Daniel Stone <daniels@collabora.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Reviewed-by: Daniel Stone <daniels@collabora.com> Reported-and-tested-by: John Hunter <zhaojunwang@pku.edu.cn> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-07-03drm/crtc-helper: Fixup error handling in drm_helper_crtc_mode_setDaniel Vetter1-13/+11
In commit 9f658b7b62e7aefc1ee067136126eca3f58cabfd Author: Daniel Stone <daniels@collabora.com> Date: Fri May 22 13:34:45 2015 +0100 drm/crtc_helper: Replace open-coded CRTC state helpers error handling code was broken, resulting in the first path not being checked correctly. Fix this by using the same pattern as in the transitional plane helper function drm_plane_helper_update. v2: Simplify the cleanup code while at it too. v3: After some debugging with John we realized that the above patch from Daniel also accidentally removed the if (crtc_state) check. This is legal when transitioning to atomic, when the initial state reset isn't all wired up yet properly. Reinstate that check to fix the bug John has hit. Cc: Daniel Stone <daniels@collabora.com> CC: Sean Paul <seanpaul@chromium.org> Cc: John Hunter <zhaojunwang@pku.edu.cn> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Reviewed-by: Daniel Stone <daniels@collabora.com> Reported-and-tested-by: John Hunter <zhaojunwang@pku.edu.cn> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-05-26drm: Add drm_atomic_set_mode_for_crtcDaniel Stone1-2/+3
Add a new helper, to be used later for blob property management, that sets the mode for a CRTC state, as well as updating the CRTC enable/active state at the same time. v2: Do not touch active/mode_changed in CRTC state. Document return value. Remove stray drm_atomic_set_mode_prop_for_crtc declaration. v3: Remove i915 changes, and leave it directly bashing crtc_state->mode for the meantime. Signed-off-by: Daniel Stone <daniels@collabora.com> Tested-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-05-22drm/crtc_helper: Replace open-coded CRTC state helpersDaniel Stone1-23/+19
Rather than open-coding our own CRTC state helpers, use the atomic helpers added in f5e7840b0c, and make our freeing behaviour consistent as well. Signed-off-by: Daniel Stone <daniels@collabora.com> Tested-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-05-21drm: bridge: Allow daisy chaining of bridgesArchit Taneja1-34/+20
Allow drm_bridge objects to link to each other in order to form an encoder chain. The requirement for creating a chain of bridges comes because the MSM drm driver uses up its encoder and bridge objects for blocks within the SoC itself. There isn't anything left to use if the SoC display output is connected to an external encoder IC. Having an additional bridge connected to the existing bridge helps here. In general, it is possible for platforms to have multiple devices between the encoder and the connector/panel that require some sort of configuration. We create drm bridge helper functions corresponding to each op in 'drm_bridge_funcs'. These helpers call the corresponding 'drm_bridge_funcs' op for the entire chain of bridges. These helpers are used internally by drm_atomic_helper.c and drm_crtc_helper.c. The drm_bridge_enable/pre_enable helpers execute enable/pre_enable ops of the bridge closet to the encoder, and proceed until the last bridge in the chain is enabled. The same holds for drm_bridge_mode_set/mode_fixup helpers. The drm_bridge_disable/post_disable helpers disable the last bridge in the chain first, and proceed until the first bridge in the chain is disabled. drm_bridge_attach() remains the same. As before, the driver calling this function should make sure it has set the links correctly. The order in which the bridges are connected to each other determines the order in which the calls are made. One requirement is that every bridge in the chain should point the parent encoder object. This is required since bridge drivers expect a valid encoder pointer in drm_bridge. For example, consider a chain where an encoder's output is connected to bridge1, and bridge1's output is connected to bridge2: /* Like before, attach bridge to an encoder */ bridge1->encoder = encoder; ret = drm_bridge_attach(dev, bridge1); .. /* * set the first bridge's 'next' bridge to bridge2, set its encoder * as bridge1's encoder */ bridge1->next = bridge2 bridge2->encoder = bridge1->encoder; ret = drm_bridge_attach(dev, bridge2); ... ... This method of bridge chaining isn't intrusive and existing drivers that use drm_bridge will behave the same way as before. The bridge helpers also cleans up the atomic and crtc helper files a bit. Reviewed-by: Jani Nikula <jani.nikula@linux.intel.com> Reviewed-by: Rob Clark <robdclark@gmail.com> Reviewed-by: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Archit Taneja <architt@codeaurora.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-05-07drm/atomic: Don't open-code CRTC state destroyDaniel Stone1-1/+6
One failure path in crtc_helper had an open-coded CRTC state destroy which didn't actually call through to the driver's specified state destroy. Fix that. Signed-off-by: Daniel Stone <daniels@collabora.com> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-28 17:14:09 +0000