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 1-5). Further patches add multi-plane support with HW scaling and all possible RGB formats (patches 6-11). At last, support for YUV formats is added (patches 12-16). 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 on 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 Jernej Skrabec (17): drm/sun4i: Refactor DE2 code 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: Reorder some 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: Add support for DE2 VI planes drm/sun4i: Add scaler library for DE2 drm/sun4i: Add scaler configuration to DE2 mixers drm/sun4i: Wire in DE2 scaler support 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 | 2 +- drivers/gpu/drm/sun4i/sun8i_csc.c | 90 +++ drivers/gpu/drm/sun4i/sun8i_csc.h | 36 ++ drivers/gpu/drm/sun4i/sun8i_layer.c | 176 +++++- drivers/gpu/drm/sun4i/sun8i_mixer.c | 679 +++++++++++++++++---- drivers/gpu/drm/sun4i/sun8i_mixer.h | 108 +++- drivers/gpu/drm/sun4i/sun8i_scaler.c | 1103 ++++++++++++++++++++++++++++++++++ drivers/gpu/drm/sun4i/sun8i_scaler.h | 79 +++ 8 files changed, 2096 insertions(+), 177 deletions(-) create mode 100644 drivers/gpu/drm/sun4i/sun8i_csc.c create mode 100644 drivers/gpu/drm/sun4i/sun8i_csc.h create mode 100644 drivers/gpu/drm/sun4i/sun8i_scaler.c create mode 100644 drivers/gpu/drm/sun4i/sun8i_scaler.h -- 2.15.0 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
