[PATCH 5.8 252/255] drm/vmwgfx/ldu: Use drm_mode_config_reset

From: Greg Kroah-Hartman
Date: Tue Sep 01 2020 - 11:52:42 EST


From: Roland Scheidegger <sroland@xxxxxxxxxx>

commit 981243371a5d832af5bc572071172e955d02fe88 upstream.

Same problem as in stdu, same fix.

Fixes: 51f644b40b4b ("drm/atomic-helper: reset vblank on crtc reset")
Acked-by: Charmaine Lee <charmainel@xxxxxxxxxx>
Reviewed-by: Zack Rusin <zackr@xxxxxxxxxx>
Signed-off-by: Roland Scheidegger <sroland@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)

--- a/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
@@ -387,8 +387,6 @@ static int vmw_ldu_init(struct vmw_priva
ldu->base.is_implicit = true;

/* Initialize primary plane */
- vmw_du_plane_reset(primary);
-
ret = drm_universal_plane_init(dev, &ldu->base.primary,
0, &vmw_ldu_plane_funcs,
vmw_primary_plane_formats,
@@ -402,8 +400,6 @@ static int vmw_ldu_init(struct vmw_priva
drm_plane_helper_add(primary, &vmw_ldu_primary_plane_helper_funcs);

/* Initialize cursor plane */
- vmw_du_plane_reset(cursor);
-
ret = drm_universal_plane_init(dev, &ldu->base.cursor,
0, &vmw_ldu_cursor_funcs,
vmw_cursor_plane_formats,
@@ -417,7 +413,6 @@ static int vmw_ldu_init(struct vmw_priva

drm_plane_helper_add(cursor, &vmw_ldu_cursor_plane_helper_funcs);

- vmw_du_connector_reset(connector);
ret = drm_connector_init(dev, connector, &vmw_legacy_connector_funcs,
DRM_MODE_CONNECTOR_VIRTUAL);
if (ret) {
@@ -445,7 +440,6 @@ static int vmw_ldu_init(struct vmw_priva
goto err_free_encoder;
}

- vmw_du_crtc_reset(crtc);
ret = drm_crtc_init_with_planes(dev, crtc, &ldu->base.primary,
&ldu->base.cursor,
&vmw_legacy_crtc_funcs, NULL);
@@ -520,6 +514,8 @@ int vmw_kms_ldu_init_display(struct vmw_

dev_priv->active_display_unit = vmw_du_legacy;

+ drm_mode_config_reset(dev);
+
DRM_INFO("Legacy Display Unit initialized\n");

return 0;