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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 /drivers/gpu/drm/zte
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 'drivers/gpu/drm/zte')
-rw-r--r--drivers/gpu/drm/zte/zx_drm_drv.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/zte/zx_drm_drv.c b/drivers/gpu/drm/zte/zx_drm_drv.c
index 13081fed902d..5c6944a1e72c 100644
--- a/drivers/gpu/drm/zte/zx_drm_drv.c
+++ b/drivers/gpu/drm/zte/zx_drm_drv.c
@@ -141,7 +141,7 @@ static int zx_drm_bind(struct device *dev)
drm_mode_config_reset(drm);
drm_kms_helper_poll_init(drm);
- priv->fbdev = drm_fbdev_cma_init(drm, 32, drm->mode_config.num_crtc,
+ priv->fbdev = drm_fbdev_cma_init(drm, 32,
drm->mode_config.num_connector);
if (IS_ERR(priv->fbdev)) {
ret = PTR_ERR(priv->fbdev);