lkml.org 
[lkml]   [2017]   [Dec]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH 0/8] drm/sun4i: Support the Display Engine frontend
From
Date
Hi,

On 13-12-17 16:33, Maxime Ripard wrote:
> Hi,
>
> This is a first serie to enable the display engine frontend.
>
> This hardware block is found in the first generation Display Engine from
> Allwinner. Its role is to implement more advanced features that the
> associated backend, even though the backend alone can be used (and was used
> so far) for basic composition.
>
> Among those features, we will find hardware scaling, that is supported in
> this serie, colorspace conversions, or more exotic formats support such as
> the one output by the VPU.
So, if I have read the code correctly. The frontend will be used whenever the
input size differs from the output size.
>
> Let me know what you think,
> Maxime
>
> Maxime Ripard (8):
> drm/sun4i: backend: Move line stride setup to buffer setup function
> drm/sun4i: backend: Allow a NULL plane pointer to retrieve the format
> drm/sun4i: sun4i_layer: Add a custom plane state
> drm/sun4i: crtc: Add a custom crtc atomic_check
> drm/sun4i: Add a driver for the display frontend
> drm/sun4i: sun4i_layer: Wire in the frontend
> drm/sun4i: sun4i_layer: Add a custom atomic_check for the frontend
> ARM: dts: sun8i: a33 Enable our display frontend
>
> arch/arm/boot/dts/sun8i-a33.dtsi | 1 +-
> drivers/gpu/drm/sun4i/Makefile | 3 +-
> drivers/gpu/drm/sun4i/sun4i_backend.c | 139 +++++++++-
> drivers/gpu/drm/sun4i/sun4i_backend.h | 6 +-
> drivers/gpu/drm/sun4i/sun4i_crtc.c | 14 +-
> drivers/gpu/drm/sun4i/sun4i_drv.c | 16 +-
> drivers/gpu/drm/sun4i/sun4i_drv.h | 1 +-
> drivers/gpu/drm/sun4i/sun4i_frontend.c | 377 ++++++++++++++++++++++++++-
> drivers/gpu/drm/sun4i/sun4i_frontend.h | 102 +++++++-
> drivers/gpu/drm/sun4i/sun4i_layer.c | 75 ++++-
> drivers/gpu/drm/sun4i/sun4i_layer.h | 11 +-
> drivers/gpu/drm/sun4i/sunxi_engine.h | 2 +-
> 12 files changed, 727 insertions(+), 20 deletions(-)
> create mode 100644 drivers/gpu/drm/sun4i/sun4i_frontend.c
> create mode 100644 drivers/gpu/drm/sun4i/sun4i_frontend.h
>
> base-commit: 4fbd8d194f06c8a3fd2af1ce560ddb31f7ec8323
>

\
 
 \ /
  Last update: 2017-12-13 17:16    [W:0.132 / U:0.952 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site