linux-stable/drivers/gpu/drm/fsl-dcu
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
..
fsl_dcu_drm_crtc.c drm/fsl-dcu: disable planes before disabling CRTC 2016-11-08 17:14:08 -08:00
fsl_dcu_drm_crtc.h
fsl_dcu_drm_drv.c drm: Rely on mode_config data for fb_helper initialization 2017-02-02 19:12:00 +01:00
fsl_dcu_drm_drv.h drm: Don't include <drm/drm_encoder.h> in <drm/drm_crtc.h> 2016-12-18 16:29:29 +05:30
fsl_dcu_drm_kms.c drm/fsl-dcu: rework codes to support of_graph dt binding for panel 2016-07-15 18:06:28 -07:00
fsl_dcu_drm_output.h drm/fsl-dcu: rework codes to support of_graph dt binding for panel 2016-07-15 18:06:28 -07:00
fsl_dcu_drm_plane.c drm: Nuke fb->pixel_format 2016-12-15 14:55:34 +02:00
fsl_dcu_drm_plane.h drm/fsl-dcu: move layer initialization to plane file 2016-06-18 18:34:22 -07:00
fsl_dcu_drm_rgb.c drm: bridge: Link encoder and bridge in core code 2016-12-18 16:31:45 +05:30
fsl_tcon.c drm/fsl-dcu: use PTR_ERR_OR_ZERO() to simplify the code 2016-09-05 12:15:41 -07:00
fsl_tcon.h drm/fsl-dcu: add TCON driver 2016-04-25 20:27:18 -07:00
Kconfig drm/fsl-dcu: make fbdev support really optional 2016-07-18 09:11:39 +02:00
Makefile drm/fsl-dcu: remove separate compilation unit for fbdev emulation 2016-11-28 17:33:52 -08:00