[PATCH v2 00/27] Improve DE2 support

Jernej Skrabec
2017-12-01T06:05:23Z

Current DE2 driver is very basic and uses a lot of magic constants since
there is no documentation and knowledge about it was limited at the time.

With studying BSP source code, deeper knowledge was gained which allows
to improve mainline driver considerably.

At the beginning of this series, some code refactoring is done as well
as adding some checks (patches 1-15).

Further patches add multi-plane support with HW scaling and all possible
RGB formats (patches 16-21).

At last, support for YUV formats is added (patches 22-26).

At the end, I included patch which puts lowest plane before second lowest.
This should help testing VI planes when mixer has configuration 1 VI plane
and 1 or more UI planes (most SoCs except V3s).

This code was developed on H3, but it should work on every SoC if correct
configuration structure is provided.

H3 code can be found here:
https://github.com/jernejsk/linux-1/commits/de2_impr_for_next

Best regards,
Jernej

Changes from v1:
- Split two patches to multiple smaller ones and better explain why those
changes are needed and added fixes tag where appropriate.
- channel parameters represents HW better (layer id -> channel, overlay)
- add kerneldoc to configuration structure
- nicer code style in atomic_check functions
- changed WARN() to DRM_WARN() in csc code
- split common scaler file to separate ui and vi scaler files
- move channel specific code out of mixer code to sun8i_ui_layer.c and
sun8i_vi_layer.c
- defined macros for min and max supported scaler factor for each type
of scaler

Jernej Skrabec (27):
drm/sun4i: Fix format mask in DE2 driver
drm/sun4i: Rename DE2 RGB format macros
drm/sun4i: Remove setting alpha mode in DE2 driver
drm/sun4i: Fix debug message in DE2
drm/sun4i: Remove setting default values in DE2 driver
drm/sun4i: Explain color macro in DE2 driver
drm/sun4i: Set blending mode for all channels (DE2)
drm/sun4i: Rename some macros in DE2 driver
drm/sun4i: Rework enabling plane in DE2 driver
drm/sun4i: Start using layer id in DE2 driver
drm/sun4i: Add constraints checking to DE2 driver
drm/sun4i: Use values calculated by atomic check
drm/sun4i: Move line width setting in DE2
drm/sun4i: Move channel size related code in DE2
drm/sun4i: Move interlace related code in DE2
drm/sun4i: Add multi plane support to DE2 driver
drm/sun4i: Add support for all HW supported DE2 RGB formats
drm/sun4i: Reorganize UI layer code in DE2
drm/sun4i: Add support for DE2 VI planes
drm/sun4i: Add scaler configuration to DE2 mixers
drm/sun4i: Add support for HW scaling to DE2
drm/sun4i: Add CCSC property to DE2 configuration
drm/sun4i: Add DE2 CSC library
drm/sun4i: Add DE2 definitions for YUV formats
drm/sun4i: Expand DE2 scaler lib with YUV support
drm/sun4i: Wire in DE2 YUV support
[DO NOT MERGE]drm/sun4i: Change zpos of bottom VI plane

drivers/gpu/drm/sun4i/Makefile | 4 +-
drivers/gpu/drm/sun4i/sun8i_csc.c | 93 +++
drivers/gpu/drm/sun4i/sun8i_csc.h | 36 ++
drivers/gpu/drm/sun4i/sun8i_layer.c | 134 -----
drivers/gpu/drm/sun4i/sun8i_layer.h | 36 --
drivers/gpu/drm/sun4i/sun8i_mixer.c | 496 +++++++++-------
drivers/gpu/drm/sun4i/sun8i_mixer.h | 123 ++--
drivers/gpu/drm/sun4i/sun8i_ui_layer.c | 351 ++++++++++++
drivers/gpu/drm/sun4i/sun8i_ui_layer.h | 63 +++
drivers/gpu/drm/sun4i/sun8i_ui_scaler.c | 172 ++++++
drivers/gpu/drm/sun4i/sun8i_ui_scaler.h | 49 ++
drivers/gpu/drm/sun4i/sun8i_vi_layer.c | 389 +++++++++++++
drivers/gpu/drm/sun4i/sun8i_vi_layer.h | 51 ++
drivers/gpu/drm/sun4i/sun8i_vi_scaler.c | 971 ++++++++++++++++++++++++++++++++
drivers/gpu/drm/sun4i/sun8i_vi_scaler.h | 58 ++
15 files changed, 2595 insertions(+), 431 deletions(-)
create mode 100644 drivers/gpu/drm/sun4i/sun8i_csc.c
create mode 100644 drivers/gpu/drm/sun4i/sun8i_csc.h
delete mode 100644 drivers/gpu/drm/sun4i/sun8i_layer.c
delete mode 100644 drivers/gpu/drm/sun4i/sun8i_layer.h
create mode 100644 drivers/gpu/drm/sun4i/sun8i_ui_layer.c
create mode 100644 drivers/gpu/drm/sun4i/sun8i_ui_layer.h
create mode 100644 drivers/gpu/drm/sun4i/sun8i_ui_scaler.c
create mode 100644 drivers/gpu/drm/sun4i/sun8i_ui_scaler.h
create mode 100644 drivers/gpu/drm/sun4i/sun8i_vi_layer.c
create mode 100644 drivers/gpu/drm/sun4i/sun8i_vi_layer.h
create mode 100644 drivers/gpu/drm/sun4i/sun8i_vi_scaler.c
create mode 100644 drivers/gpu/drm/sun4i/sun8i_vi_scaler.h

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2.15.1