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Commit Graph

4 Commits

Author SHA1 Message Date
Jernej Skrabec
c50519e6db
drm/sun4i: Add basic support for DE3
Display Engine 3 is an upgrade of DE2 with new features like support for
10 bit color formats and support for AFBC.

Most of DE2 code works with DE3, except some small details.

Implement basic support for DE3. Support for 10 bit colort formats and
AFBC, among others missing features, will be added later.

Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/260238/
2018-11-05 11:48:23 +01:00
Jernej Skrabec
4b09c07383
drm/sun4i: Rework DE2 register defines
Most, if not all, registers found in DE2 still exists in DE3. However,
units are on different base addresses.

To prepare for addition of DE3 support, registers macros are reworked so
they take base address as parameter.

Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
[rebased]
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181104182705.18047-10-jernej.skrabec@siol.net
2018-11-05 10:34:43 +01:00
Jernej Skrabec
1343bd6c23 drm/sun4i: Expand DE2 scaler lib with YUV support
Basic principle of operation when using YUV framebuffer is that chroma
planes have to be upscaled to same size as luma.

Because of that, expand DE2 scaler library to support that.

BSP driver uses another set of FIR filter coefficients for YUV planes.

Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171201060550.10392-26-jernej.skrabec@siol.net
2017-12-05 13:22:44 +01:00
Jernej Skrabec
b862a648de drm/sun4i: Add support for HW scaling to DE2
Scaling is currently supported only for RGB framebuffers

Coefficients and algorithm which coefficients to select are taken
from BSP driver.

Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171201060550.10392-22-jernej.skrabec@siol.net
2017-12-05 13:22:44 +01:00