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drm/sun4i: Add support for HW scaling to DE2

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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
This commit is contained in:
Jernej Skrabec
2017-12-01 07:05:44 +01:00
committed by Maxime Ripard
parent 5b1f8367f3
commit b862a648de
8 changed files with 915 additions and 39 deletions
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4
drivers/gpu/drm/sun4i/sun8i_mixer.h
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@@ -77,10 +77,6 @@
* These sub-engines are still unknown now, the EN registers are here only to
* be used to disable these sub-engines.
*/
#define SUN8I_MIXER_VSU_EN 0x20000
#define SUN8I_MIXER_GSU1_EN 0x30000
#define SUN8I_MIXER_GSU2_EN 0x40000
#define SUN8I_MIXER_GSU3_EN 0x50000
#define SUN8I_MIXER_FCE_EN 0xa0000
#define SUN8I_MIXER_BWS_EN 0xa2000
#define SUN8I_MIXER_LTI_EN 0xa4000