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authorGabriel Krisman Bertazi <krisman@collabora.co.uk>2017-02-02 19:26:40 +0300
committerDaniel Vetter <daniel.vetter@ffwll.ch>2017-02-02 21:12:00 +0300
commite4563f6ba71792c77aeccb2092cc23149b44e642 (patch)
tree8cfe931676fe8c92c96e85edf3edf3a09a3d4b22 /include/drm/drm_fb_helper.h
parentf30c92576af4bb155d26429540aae95e0a256ce2 (diff)
downloadlinux-e4563f6ba71792c77aeccb2092cc23149b44e642.tar.xz
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
Diffstat (limited to 'include/drm/drm_fb_helper.h')
-rw-r--r--include/drm/drm_fb_helper.h3
1 files changed, 1 insertions, 2 deletions
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index e62e1cf22678..278820ee17ad 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -236,8 +236,7 @@ struct drm_fb_helper {
void drm_fb_helper_prepare(struct drm_device *dev, struct drm_fb_helper *helper,
const struct drm_fb_helper_funcs *funcs);
int drm_fb_helper_init(struct drm_device *dev,
- struct drm_fb_helper *helper, int crtc_count,
- int max_conn);
+ struct drm_fb_helper *helper, int max_conn);
void drm_fb_helper_fini(struct drm_fb_helper *helper);
int drm_fb_helper_blank(int blank, struct fb_info *info);
int drm_fb_helper_pan_display(struct fb_var_screeninfo *var,