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authorBoris Brezillon <boris.brezillon@free-electrons.com>2016-06-07 14:47:56 +0300
committerDaniel Vetter <daniel.vetter@ffwll.ch>2016-06-07 17:38:58 +0300
commitc61b93fe51b1330cfc4d73084b924931bd65c8f0 (patch)
tree7ea10a09f2cc4a88d78b7377a005cdcd7f37fd13 /drivers/gpu/drm/drm_fb_helper.c
parent7ea7728387820a21a89a7c3845dbe60926f82dc4 (diff)
downloadlinux-c61b93fe51b1330cfc4d73084b924931bd65c8f0.tar.xz
drm/atomic: Fix remaining places where !funcs->best_encoder is valid
Adapt drm_pick_crtcs() and update_connector_routing() to fallback to drm_atomic_helper_best_encoder() if funcs->best_encoder() is NULL so that DRM drivers can leave this hook unassigned if they know they want to use drm_atomic_helper_best_encoder(). Update the vtables documentation accordingly. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1465300095-16971-2-git-send-email-boris.brezillon@free-electrons.com
Diffstat (limited to 'drivers/gpu/drm/drm_fb_helper.c')
-rw-r--r--drivers/gpu/drm/drm_fb_helper.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index 58ed6e6d4f12..ba5aac7276e4 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -1971,7 +1971,18 @@ static int drm_pick_crtcs(struct drm_fb_helper *fb_helper,
my_score++;
connector_funcs = connector->helper_private;
- encoder = connector_funcs->best_encoder(connector);
+
+ /*
+ * If the DRM device implements atomic hooks and ->best_encoder() is
+ * NULL we fallback to the default drm_atomic_helper_best_encoder()
+ * helper.
+ */
+ if (fb_helper->dev->mode_config.funcs->atomic_commit &&
+ !connector_funcs->best_encoder)
+ encoder = drm_atomic_helper_best_encoder(connector);
+ else
+ encoder = connector_funcs->best_encoder(connector);
+
if (!encoder)
goto out;