linux/drivers/gpu/drm/atmel-hlcdc
Gabriel Krisman Bertazi e4563f6ba7 drm: Rely on mode_config data for fb_helper initialization
Instead of receiving the num_crts as a parameter, we can read it
directly from the mode_config structure.  I audited the drivers that
invoke this helper and I believe all of them initialize the mode_config
struct accordingly, prior to calling the fb_helper.

I used the following coccinelle hack to make this transformation, except
for the function headers and comment updates.  The first and second
rules are split because I couldn't find a way to remove the unused
temporary variables at the same time I removed the parameter.

// <smpl>
@r@
expression A,B,D,E;
identifier C;
@@
(
- drm_fb_helper_init(A,B,C,D)
+ drm_fb_helper_init(A,B,D)
|
- drm_fbdev_cma_init_with_funcs(A,B,C,D,E)
+ drm_fbdev_cma_init_with_funcs(A,B,D,E)
|
- drm_fbdev_cma_init(A,B,C,D)
+ drm_fbdev_cma_init(A,B,D)
)

@@
expression A,B,C,D,E;
@@
(
- drm_fb_helper_init(A,B,C,D)
+ drm_fb_helper_init(A,B,D)
|
- drm_fbdev_cma_init_with_funcs(A,B,C,D,E)
+ drm_fbdev_cma_init_with_funcs(A,B,D,E)
|
- drm_fbdev_cma_init(A,B,C,D)
+ drm_fbdev_cma_init(A,B,D)
)

@@
identifier r.C;
type T;
expression V;
@@
- T C;
<...
when != C
- C = V;
...>
// </smpl>

Changes since v1:
 - Rebased on top of the tip of drm-misc-next.
 - Remove mention to sti since a proper fix got merged.

Suggested-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170202162640.27261-1-krisman@collabora.co.uk
2017-02-02 19:12:00 +01:00
..
atmel_hlcdc_crtc.c drm/atmel-hlcdc: Make ->reset() implementation static 2016-09-06 14:46:16 +02:00
atmel_hlcdc_dc.c drm: Rely on mode_config data for fb_helper initialization 2017-02-02 19:12:00 +01:00
atmel_hlcdc_dc.h drm: atmel-hlcdc: route DMA accesses through AHB interfaces 2016-04-14 09:17:28 +02:00
atmel_hlcdc_layer.c drm: Replace drm_format_num_planes() with fb->format->num_planes 2016-12-15 14:55:31 +02:00
atmel_hlcdc_layer.h drm: atmel-hlcdc: Atomic mode-setting conversion 2015-02-22 21:00:06 +01:00
atmel_hlcdc_output.c drm: bridge: Link encoder and bridge in core code 2016-12-18 16:31:45 +05:30
atmel_hlcdc_plane.c drm: Nuke fb->pixel_format 2016-12-15 14:55:34 +02:00
Kconfig drm/atmel-hlcdc: make fbdev support really optional 2016-07-15 10:28:33 -04:00
Makefile drm: add Atmel HLCDC Display Controller support 2015-01-21 09:46:02 +01:00