Duplicates drm_atomic_helper_commit_tail(), so that planes can be
disabled on full mode-setting changes.
Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
Fixes: 4961eb60f145 ("drm/ast: Enable atomic modesetting")
Cc: Thomas Zimmermann <tzimmermann@xxxxxxx>
Cc: Gerd Hoffmann <kraxel@xxxxxxxxxx>
Cc: Dave Airlie <airlied@xxxxxxxxxx>
Cc: Daniel Vetter <daniel.vetter@xxxxxxxx>
Cc: Sam Ravnborg <sam@xxxxxxxxxxxx>
Cc: Emil Velikov <emil.l.velikov@xxxxxxxxx>
Cc: "Y.C. Chen" <yc_chen@xxxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # v5.6+
---
drivers/gpu/drm/ast/ast_mode.c | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c
index 0ea8a68ac2d9..ae5cb0a333f7 100644
--- a/drivers/gpu/drm/ast/ast_mode.c
+++ b/drivers/gpu/drm/ast/ast_mode.c
@@ -1043,6 +1043,31 @@ static int ast_connector_init(struct drm_device *dev)
* Mode config
*/
+static void
+ast_mode_config_helper_commit_tail(struct drm_atomic_state *old_state)
+{
+ struct drm_device *dev = old_state->dev;
+
+ drm_atomic_helper_commit_modeset_disables(dev, old_state);
+
+ drm_atomic_helper_commit_planes(dev, old_state, 0);
+
+ drm_atomic_helper_commit_modeset_enables(dev, old_state);
+
+ drm_atomic_helper_fake_vblank(old_state);
+
+ drm_atomic_helper_commit_hw_done(old_state);
+
+ drm_atomic_helper_wait_for_vblanks(dev, old_state);
+
+ drm_atomic_helper_cleanup_planes(dev, old_state);
+}
+
+static const struct drm_mode_config_helper_funcs
+ast_mode_config_helper_funcs = {
+ .atomic_commit_tail = ast_mode_config_helper_commit_tail,
+};
+
static const struct drm_mode_config_funcs ast_mode_config_funcs = {
.fb_create = drm_gem_fb_create,
.mode_valid = drm_vram_helper_mode_valid,
@@ -1082,6 +1107,8 @@ int ast_mode_config_init(struct ast_private *ast)
dev->mode_config.max_height = 1200;
}
+ dev->mode_config.helper_private = &ast_mode_config_helper_funcs;
+
memset(&ast->primary_plane, 0, sizeof(ast->primary_plane));
ret = drm_universal_plane_init(dev, &ast->primary_plane, 0x01,
&ast_primary_plane_funcs,
--
2.28.0
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