linux.git/drivers/gpu/drm/msm/edp, branch v5.16

drm: Remove redundant 'flush_workqueue()' calls

2021-10-15T23:48:51+00:00

'destroy_workqueue()' already drains the queue before destroying it, so
there is no need to flush it explicitly.

Remove the redundant 'flush_workqueue()' calls.

This was generated with coccinelle:

@@
expression E;
@@
- 	flush_workqueue(E);
	destroy_workqueue(E);

Signed-off-by: Christophe JAILLET 
Acked-by: Jyri Sarha 
Reviewed-by: Rob Clark 
Link: https://lore.kernel.org/r/75e8ba40076ad707d47e3a3670e6b23c1b8b11bc.1633874223.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Rob Clark

drm/msm: remove unneeded variable

2021-10-15T19:59:20+00:00

Fix the following coccicheck REVIEW:
./drivers/gpu/drm/msm/edp/edp_ctrl.c:1245:5-8 Unneeded variable

Reported-by: Zeal Robot 
Signed-off-by: Chi Minghao 
Reviewed-by: Lyude Paul 
Reviewed-by: Dmitry Baryshkov 
Link: https://lore.kernel.org/r/20210831115127.18236-1-chi.minghao@zte.com.cn
Signed-off-by: Dmitry Baryshkov 
Signed-off-by: Rob Clark

drm/msm: Fix null pointer dereference on pointer edp

2021-10-12T00:30:53+00:00

The initialization of pointer dev dereferences pointer edp before
edp is null checked, so there is a potential null pointer deference
issue. Fix this by only dereferencing edp after edp has been null
checked.

Addresses-Coverity: ("Dereference before null check")
Fixes: ab5b0107ccf3 ("drm/msm: Initial add eDP support in msm drm driver (v5)")
Signed-off-by: Colin Ian King 
Reviewed-by: Dmitry Baryshkov 
Link: https://lore.kernel.org/r/20210929121857.213922-1-colin.king@canonical.com
Signed-off-by: Rob Clark

Merge tag 'drm-msm-next-2021-06-23b' of https://gitlab.freedesktop.org/drm/msm into drm-next

2021-06-23T21:21:16+00:00

* devcoredump support for display errors
* dpu: irq cleanup/refactor
* dpu: dt bindings conversion to yaml
* dsi: dt bindings conversion to yaml
* mdp5: alpha/blend_mode/zpos support
* a6xx: cached coherent buffer support
* a660 support
* gpu iova fault improvements:
   - info about which block triggered the fault, etc
   - generation of gpu devcoredump on fault
* assortment of other cleanups and fixes

Signed-off-by: Dave Airlie 
From: Rob Clark 
Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGs4=qsGBBbyn-4JWqW4-YUSTKh67X3DsPQ=T2D9aXKqNA@mail.gmail.com

drm/msm: Generated register update

2021-06-23T14:33:54+00:00

Based on mesa commit daa2ccff7a0201941db3901780d179e2634057d5

Small bit of .c churn in the phy code to adapt to split up of phy
related registers.

Signed-off-by: Rob Clark

drm/dp: Pass drm_dp_aux to drm_dp*_link_train_channel_eq_delay()

2021-04-27T22:43:42+00:00

So that we can start using drm_dbg_*() for
drm_dp_link_train_channel_eq_delay() and
drm_dp_lttpr_link_train_channel_eq_delay().

Signed-off-by: Lyude Paul 
Reviewed-by: Laurent Pinchart 
Link: https://patchwork.freedesktop.org/patch/msgid/20210423184309.207645-7-lyude@redhat.com
Reviewed-by: Dave Airlie

drm/dp: Pass drm_dp_aux to drm_dp_link_train_clock_recovery_delay()

2021-04-27T22:43:42+00:00

So that we can start using drm_dbg_*() in
drm_dp_link_train_clock_recovery_delay().

Signed-off-by: Lyude Paul 
Reviewed-by: Laurent Pinchart 
Reviewed-by: Rodrigo Vivi 
Link: https://patchwork.freedesktop.org/patch/msgid/20210423184309.207645-6-lyude@redhat.com
Reviewed-by: Dave Airlie

drm/dp: Add backpointer to drm_device in drm_dp_aux

2021-04-27T22:43:42+00:00

This is something that we've wanted for a while now: the ability to
actually look up the respective drm_device for a given drm_dp_aux struct.
This will also allow us to transition over to using the drm_dbg_*() helpers
for debug message printing, as we'll finally have a drm_device to reference
for doing so.

Note that there is one limitation with this - because some DP AUX adapters
exist as platform devices which are initialized independently of their
respective DRM devices, one cannot rely on drm_dp_aux->drm_dev to always be
non-NULL until drm_dp_aux_register() has been called. We make sure to point
this out in the documentation for struct drm_dp_aux.

v3:
* Add WARN_ON_ONCE() to drm_dp_aux_register() if drm_dev isn't filled out

Signed-off-by: Lyude Paul 
Acked-by: Thierry Reding 
Link: https://patchwork.freedesktop.org/patch/msgid/20210423184309.207645-4-lyude@redhat.com
Reviewed-by: Dave Airlie

drm/msm: sync generated headers

2020-07-31T13:46:16+00:00

We haven't sync'd for a while.. pull in updates to get definitions for
some fields in pkt7 payloads.

Signed-off-by: Rob Clark 
Acked-by: Jordan Crouse 
Signed-off-by: Rob Clark

Merge tag 'drm-msm-next-2020-03-22' of https://gitlab.freedesktop.org/drm/msm into drm-next

2020-03-31T06:34:55+00:00

A bit smaller this time around.. there are still a couple uabi
additions for vulkan waiting in the wings, but I punted on them this
cycle due to running low on time.  (They should be easy enough to
rebase, and if it is a problem for anyone I can push a next+uabi
branch so that tu work can proceed.)

The bigger change is refactoring dpu resource manager and moving dpu
to use atomic global state.  Other than that, it is mostly cleanups
and fixes.

From: Rob Clark 
Link: https://patchwork.freedesktop.org/patch/msgid/