From e4563f6ba71792c77aeccb2092cc23149b44e642 Mon Sep 17 00:00:00 2001 From: Gabriel Krisman Bertazi Date: Thu, 2 Feb 2017 14:26:40 -0200 Subject: 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. // @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; ...> // 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 Signed-off-by: Gabriel Krisman Bertazi Reviewed-by: Eric Anholt Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/20170202162640.27261-1-krisman@collabora.co.uk --- drivers/gpu/drm/exynos/exynos_drm_fbdev.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'drivers/gpu/drm/exynos') diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c index a7884bea42eb..bcdb2720b68e 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c @@ -208,7 +208,6 @@ int exynos_drm_fbdev_init(struct drm_device *dev) struct exynos_drm_fbdev *fbdev; struct exynos_drm_private *private = dev->dev_private; struct drm_fb_helper *helper; - unsigned int num_crtc; int ret; if (!dev->mode_config.num_crtc || !dev->mode_config.num_connector) @@ -225,9 +224,7 @@ int exynos_drm_fbdev_init(struct drm_device *dev) drm_fb_helper_prepare(dev, helper, &exynos_drm_fb_helper_funcs); - num_crtc = dev->mode_config.num_crtc; - - ret = drm_fb_helper_init(dev, helper, num_crtc, MAX_CONNECTOR); + ret = drm_fb_helper_init(dev, helper, MAX_CONNECTOR); if (ret < 0) { DRM_ERROR("failed to initialize drm fb helper.\n"); goto err_init; -- cgit v1.2.3