linux.git/drivers/gpu/drm/arm, branch v4.19-rc2

drm/arm/hdlcd: Reject atomic commits that disable only the plane

2018-07-31T15:31:50+00:00

The HDLCD engine needs an active plane while the CRTC is active, as
it will start scanning out data from HDLCD_REG_FB_BASE once it gets
enabled. Make sure that the only available plane doesn't get disabled
while the CRTC remains active, as this will scanout invalid data.

Signed-off-by: Liviu Dudau

drm: arm: hdlcd: Use drm_atomic_helper_shutdown() to disable planes on removal

2018-07-31T15:31:50+00:00

The plane cleanup handler currently calls drm_plane_helper_disable(),
which is a legacy helper function. Replace it with a call to
drm_atomic_helper_shutdown() at removal time. The plane .destroy()
handler now consisting only of a call to drm_plane_cleanup(), replace it
with direct calls to that function.

Signed-off-by: Laurent Pinchart 
Signed-off-by: Liviu Dudau

drm: arm: hdlcd: Don't destroy plane manually in hdlcd_setup_crtc()

2018-07-31T15:31:50+00:00

The top-level error handler calls drm_mode_config_cleanup() which will
destroy all planes. There's no need to destroy them manually in lower
error handlers.

Signed-off-by: Laurent Pinchart 
Signed-off-by: Liviu Dudau

drm/arm/hdlcd: Use drm_fb_cma_fbdev_init/fini()

2018-07-31T15:31:50+00:00

Use drm_fb_cma_fbdev_init() and drm_fb_cma_fbdev_fini() which relies on
the fact that drm_device holds a pointer to the drm_fb_helper structure.
This means that the driver doesn't have to keep track of that.
Also use the drm_fb_helper functions directly.

Cc: Liviu Dudau 
Cc: Brian Starkey 
Signed-off-by: Noralf Trønnes 
Acked-by: Liviu Dudau 
Signed-off-by: Liviu Dudau

drm/arm/hdlcd: Use drm_mode_config_helper_suspend/resume()

2018-07-31T15:31:49+00:00

Replace driver's code with the generic helpers that do the same thing
including the NULL check.

Cc: Liviu Dudau 
Cc: Brian Starkey 
Signed-off-by: Noralf Trønnes 
Signed-off-by: Liviu Dudau

drm: mali-dp: Set encoder possible_clones

2018-07-23T14:42:17+00:00

Set possible_clones field to report that the writeback connector and
the one driving the display could be enabled at the same time.

Signed-off-by: Alexandru Gheorghe 
Acked-by: Liviu Dudau 
Signed-off-by: Liviu Dudau

drm: mali-dp: Report writeback connector as connected

2018-07-23T14:38:46+00:00

Older version of this patch series reported writeback as disconnected
to avoid confusing userspace not aware of writeback connectors.
However, the version that got merged uses a special cap
(DRM_CLIENT_CAP_WRITEBACK_CONNECTORS) for this purpose.

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

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

Signed-off-by: Alexandru Gheorghe 
Reviewed-by: Sean Paul 
Signed-off-by: Liviu Dudau

Merge commit 'refs/for-upstream/mali-dp' of git://linux-arm.org/linux-ld into drm-next

2018-07-06T00:02:13+00:00

"mali-dp driver changes for drm-next, includes the driver implementation
for writeback, improvements for power management handling in the driver
and a debugfs entry for reporting possible internal errors. Please pull
at your earliest convenience.

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

Signed-off-by: Dave Airlie 
Link: https://patchwork.freedesktop.org/patch/msgid/20180705144408.GH15340@e110455-lin.cambridge.arm.com

Merge tag 'drm-misc-next-2018-07-04' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

2018-07-06T00:01:56+00:00

drm-misc-next for 4.19:

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

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

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

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

Signed-off-by: Dave Airlie 
Link: https://patchwork.freedesktop.org/patch/msgid/20180704234641.GA3981@juma

drm/arm/malidp: Added the late system pm functions

2018-07-05T14:19:10+00:00

malidp_pm_suspend_late checks if the runtime status is not suspended
and if so, invokes malidp_runtime_pm_suspend which disables the
display engine/core interrupts and the clocks. It sets the runtime status
as suspended.

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

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

Signed-off-by: Ayan Kumar Halder 
Acked-by: Liviu Dudau 
Signed-off-by: Liviu Dudau