linux-toradex.git/include/drm/drm_crtc.h, branch v5.3-rc1

drm: Add helpers to kick off self refresh mode in drivers

2019-06-13T18:31:10+00:00

This patch adds a new drm helper library to help drivers implement
self refresh. Drivers choosing to use it will register crtcs and
will receive callbacks when it's time to enter or exit self refresh
mode.

In its current form, it has a timer which will trigger after a
driver-specified amount of inactivity. When the timer triggers, the
helpers will submit a new atomic commit to shut the refreshing pipe
off. On the next atomic commit, the drm core will revert the self
refresh state and bring everything back up to be actively driven.

From the driver's perspective, this works like a regular disable/enable
cycle. The driver need only check the 'self_refresh_active' state in
crtc_state. It should initiate self refresh mode on the panel and enter
an off or low-power state.

Changes in v2:
- s/psr/self_refresh/ (Daniel)
- integrated the psr exit into the commit that wakes it up (Jose/Daniel)
- made the psr state per-crtc (Jose/Daniel)
Changes in v3:
- Remove the self_refresh_(active|changed) from connector state (Daniel)
- Simplify loop in drm_self_refresh_helper_alter_state (Daniel)
- Improve self_refresh_aware comment (Daniel)
- s/self_refresh_state/self_refresh_data/ (Daniel)
Changes in v4:
- Move docbook location below panel (Daniel)
- Improve docbook with references and more detailed explanation (Daniel)
- Instead of register/unregister, use init/cleanup (Daniel)
Changes in v5:
- Resolved conflict in drm_atomic_helper.c #include block
- Resolved conflict in rst with HDCP helper docs
Changes in v6:
- Fix include ordering, clean up forward declarations (Sam)

Link to v1: https://patchwork.freedesktop.org/patch/msgid/20190228210939.83386-2-sean@poorly.run
Link to v2: https://patchwork.freedesktop.org/patch/msgid/20190326204509.96515-1-sean@poorly.run
Link to v3: https://patchwork.freedesktop.org/patch/msgid/20190502194956.218441-6-sean@poorly.run
Link to v4: https://patchwork.freedesktop.org/patch/msgid/20190508160920.144739-6-sean@poorly.run
Link to v5: https://patchwork.freedesktop.org/patch/msgid/20190611160844.257498-6-sean@poorly.run

Cc: Daniel Vetter 
Cc: Jose Souza 
Cc: Zain Wang 
Cc: Tomasz Figa 
Cc: Ville Syrjälä 
Cc: Sam Ravnborg 
Tested-by: Heiko Stuebner 
Reviewed-by: Daniel Vetter 
Signed-off-by: Sean Paul 
Link: https://patchwork.freedesktop.org/patch/msgid/20190612145026.191846-1-sean@poorly.run

drm: drm_crtc.h self-contained

2019-06-10T20:30:24+00:00

While removing drmP.h from drm/radeon a few files ended
up including drm_crtc.h as the first file.
This failed build due to a missing dependency in drm_crtc.h.

Add the missing include file.

Signed-off-by: Sam Ravnborg 
Reviewed-by: Alex Deucher 
Cc: Maarten Lankhorst 
Cc: Maxime Ripard 
Cc: Sean Paul 
Cc: David Airlie 
Cc: Daniel Vetter 
Link: https://patchwork.freedesktop.org/patch/msgid/20190608080241.4958-2-sam@ravnborg.org

drm: Fix subtle spelling error in drm_crtc_state

2019-03-28T04:06:33+00:00

The drm_crtc_state documentation contains a subtle misspelling of the
word subtle. Correct it.

Signed-off-by: Kieran Bingham 
Reviewed-by: Daniel Vetter 
Reviewed-by: Simon Horman 
Reviewed-by: Laurent Pinchart 
Signed-off-by: Laurent Pinchart

drm/doc: Fix copy paste error in drm_crtc_funcs.destroy()

2019-02-28T13:39:09+00:00

The function is about cleaning up CRTC resources, not plane resources,
fix this in docbook.

Signed-off-by: Maarten Lankhorst 
Reviewed-by: Daniel Vetter

drm: Move the legacy kms disable_all helper to crtc helpers

2019-01-11T21:54:29+00:00

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 
Reviewed-by: Alex Deucher 
Reviewed-by: Sean Paul 
Signed-off-by: Daniel Vetter 
Cc: Maarten Lankhorst 
Cc: Maxime Ripard 
Cc: Sean Paul 
Cc: David Airlie 
Cc: Ben Skeggs 
Cc: Alex Deucher 
Cc: "Christian König" 
Cc: "David (ChunMing) Zhou" 
Cc: Rex Zhu 
Cc: Andrey Grodzovsky 
Cc: Huang Rui 
Cc: Shaoyun Liu 
Cc: Monk Liu 
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

Merge drm/drm-next into drm-misc-next

2019-01-11T15:32:10+00:00

drm-next has been forwarded to 5.0-rc1, and we need it to apply the damage
helper for dirtyfb series from Noralf Trønnes.

Signed-off-by: Maxime Ripard

drm: Unexport drm_crtc_force_disable

2019-01-11T14:56:40+00:00

It's a legacy kms only thing, good to hide it better now that all
those old drivers use the legacy crtc helpers directly.

Reviewed-by: Alex Deucher 
Signed-off-by: Daniel Vetter 
Cc: Maarten Lankhorst 
Cc: Maxime Ripard 
Cc: Sean Paul 
Cc: David Airlie 
Link: https://patchwork.freedesktop.org/patch/msgid/20181217194303.14397-3-daniel.vetter@ffwll.ch

drm: Add vrr_enabled property to drm CRTC

2018-11-28T20:55:34+00:00

This patch introduces the 'vrr_enabled' CRTC property to allow
dynamic control over variable refresh rate support for a CRTC.

This property should be treated like a content hint to the driver -
if the hardware or driver is not capable of driving variable refresh
timings then this is not considered an error.

Capability for variable refresh rate support should be determined
by querying the vrr_capable drm connector property.

It is worth noting that while the property is intended for atomic use
it isn't filtered from legacy userspace queries. This allows for Xorg
userspace drivers to implement support.

Signed-off-by: Nicholas Kazlauskas 
Reviewed-by: Harry Wentland 
Signed-off-by: Alex Deucher

drm/crc: Cleanup crtc_crc_open function

2018-08-22T16:47:58+00:00

This patch make changes to allocate crc-entries buffer before
enabling CRC generation.
It moves all the failure check early in the function before setting
the source or memory allocation.
Now set_crc_source takes only two variable inputs, values_cnt we
already gets as part of verify_crc_source.

Changes since V1:
 - refactor code to use single spin lock
Changes since V2:
 - rebase
Changes since V3:
 - rebase on top of VKMS driver

Signed-off-by: Mahesh Kumar 
Cc: dri-devel@lists.freedesktop.org
Cc: Laurent Pinchart 
Cc: Haneen Mohammed 
Reviewed-by: Maarten Lankhorst 
Acked-by: Leo Li  (V2)
Reviewed-by: Laurent Pinchart  (V3)
Signed-off-by: Rodrigo Vivi 
Link: https://patchwork.freedesktop.org/patch/msgid/20180821083858.26275-3-mahesh1.kumar@intel.com

drm: crc: Introduce get_crc_sources callback

2018-08-13T12:00:20+00:00

This patch introduce a callback function "get_crc_sources" which
will be called during read of control node. It is an optional
callback function and if driver implements this callback, driver
should return a constant pointer to an array of crc sources list
and update count according to the number of source in the list.

Changes Since V1: (Daniel)
 - return const pointer to an array of crc sources list
 - do validation of sources in CRC-core
Changes Since V2:
 - update commit message
 - update callback documentation
 - print one source name per line

Signed-off-by: Mahesh Kumar 
Cc: dri-devel@lists.freedesktop.org
Cc: Laurent Pinchart 
Reviewed-by: Maarten Lankhorst 
Reviewed-by: Laurent Pinchart 
Signed-off-by: Maarten Lankhorst 
Link: https://patchwork.freedesktop.org/patch/msgid/20180713135942.25061-3-mahesh1.kumar@intel.com