drm/rockchip: Add per-pixel alpha support for the PX30 VOP

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Compared to its predecessors, the PX30 VOP has a different register layout
for enabling per-pixel alpha. Instead of src_alpha_ctl and dst_alpha_ctl,
there is a single alpha control register. This register takes some fields
from src_alpha_ctl, but with a different layout.

Add support for the required fields to the PX30 VOP window descriptions,
which makes per-pixel-alpha formats behave correctly.

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20200416140526.262533-1-paul.kocialkowski@bootlin.com

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Paul Kocialkowski 2020-04-16 16:05:26 +02:00 • committed by Heiko Stuebner

parent cfe28f909d

commit 2aae8ed1f3

3 changed files with 16 additions and 0 deletions

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4

drivers/gpu/drm/rockchip/rockchip_drm_vop.c

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3

drivers/gpu/drm/rockchip/rockchip_drm_vop.h

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9

drivers/gpu/drm/rockchip/rockchip_vop_reg.c

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