New subject: [Intel-gfx] [PATCH] drm/fb-helper: Remove drm_mode_config_fb.

3 Jul 2017

Remove drm_mode_config_fb, I don't see the point of it.
To make it clear that it's ok to use plane->fb directly,
move up drm_drv_uses_atomic_modeset so the code is skipped for atomic
drivers that require plane_state->fb.
Signed-off-by: Maarten Lankhorst maarten.lankhorst@linux.intel.com
---
 drivers/gpu/drm/drm_fb_helper.c | 22 ++++------------------
 1 file changed, 4 insertions(+), 18 deletions(-)

diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index e49bae10f0ee..0cd2035ac1d1 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -322,20 +322,6 @@ int drm_fb_helper_debug_enter(struct fb_info *info)
 }
 EXPORT_SYMBOL(drm_fb_helper_debug_enter);
-/* Find the real fb for a given fb helper CRTC */
-static struct drm_framebuffer *drm_mode_config_fb(struct drm_crtc *crtc)
-{
-	struct drm_device *dev = crtc->dev;
-	struct drm_crtc *c;
-
-	drm_for_each_crtc(c, dev) {
-		if (crtc->base.id == c->base.id)
-			return c->primary->fb;
-	}
-
-	return NULL;
-}
-
 /**
  * drm_fb_helper_debug_leave - implementation for &fb_ops.fb_debug_leave
  * @info: fbdev registered by the helper
@@ -352,8 +338,11 @@ int drm_fb_helper_debug_leave(struct fb_info *info)
    	struct drm_mode_set *mode_set = &helper->crtc_info[i].mode_set;
crtc = mode_set->crtc;
+		if (drm_drv_uses_atomic_modeset(crtc->dev))
+			continue;
+
    	funcs = crtc->helper_private;
-		fb = drm_mode_config_fb(crtc);
+		fb = crtc->primary->fb;
if (!crtc->enabled)
    		continue;
@@ -366,9 +355,6 @@ int drm_fb_helper_debug_leave(struct fb_info *info)
    	if (funcs->mode_set_base_atomic == NULL)
    		continue;
-		if (drm_drv_uses_atomic_modeset(crtc->dev))
-			continue;
-
    	drm_fb_helper_restore_lut_atomic(mode_set->crtc);
    	funcs->mode_set_base_atomic(mode_set->crtc, fb, crtc->x,
    				    crtc->y, LEAVE_ATOMIC_MODE_SET);
-- 
2.11.0


    