Many DRM drivers implement an encoder with an empty implementation. This
patchset adds drm_simple_encoder_init(), which drivers can use instead.
Except for the destroy callback, the simple encoder's implementation is
empty.
The patchset also converts 4 encoder instances to use the simple-encoder
helpers. But there are at least 11 other drivers which can use the helper
and I think I did not examine all drivers yet.
The patchset was smoke-tested on mgag200 by running the fbdev console
and Gnome on X11.
v4:
* print error messages with drm_err() (Sam)
* qxl: handle errors of drm_simple_encoder_init() (Sam)
v3:
* remove drm_simple_encoder_create() for lack of users (Sam, Daniel)
* provide more precise documentation (Sam)
v2:
* move simple encoder to KMS helpers (Daniel)
* remove name argument; simplifies implementation (Gerd)
* don't allocate with devm_ interfaces; unsafe with DRM (Noralf)
Thomas Zimmermann (4):
drm/simple-kms: Add drm_simple_encoder_{init,create}()
drm/ast: Use simple encoder
drm/mgag200: Use simple encoder
drm/qxl: Use simple encoder
drivers/gpu/drm/ast/ast_drv.h | 6 +-
drivers/gpu/drm/ast/ast_mode.c | 25 +++----
drivers/gpu/drm/drm_simple_kms_helper.c | 34 +++++++++-
drivers/gpu/drm/mgag200/mgag200_drv.h | 9 +--
drivers/gpu/drm/mgag200/mgag200_mode.c | 86 ++++---------------------
drivers/gpu/drm/qxl/qxl_display.c | 29 ++++-----
include/drm/drm_simple_kms_helper.h | 4 ++
7 files changed, 71 insertions(+), 122 deletions(-)
--
2.25.0
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