[PATCH v7 03/12] drm: panel: feiyang-fy07024di26a30d: Enable prepare_prev_first flag

[Jagan Teki <jagan@amarulasolutions.com>]

Enable the drm panel prepare_prev_first flag for feiyang-fy07024di26a30d
so-that the previous controller should be prepared first before the
prepare for the panel is called.
       
This makes sure that the previous controller(sun6i-mipi-dsi), likely to
be a DSI host controller should be initialized to LP-11 before the panel
is powered up.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
Changes for v7:
- new patch

 drivers/gpu/drm/panel/panel-feiyang-fy07024di26a30d.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/panel/panel-feiyang-fy07024di26a30d.c b/drivers/gpu/drm/panel/panel-feiyang-fy07024di26a30d.c
index df493da50afe..77d66dbe01fe 100644
--- a/drivers/gpu/drm/panel/panel-feiyang-fy07024di26a30d.c
+++ b/drivers/gpu/drm/panel/panel-feiyang-fy07024di26a30d.c
@@ -198,6 +198,7 @@ static int feiyang_dsi_probe(struct mipi_dsi_device *dsi)
 
 	drm_panel_init(&ctx->panel, &dsi->dev, &feiyang_funcs,
 		       DRM_MODE_CONNECTOR_DSI);
+	ctx->panel.prepare_prev_first = true;
 
 	ctx->dvdd = devm_regulator_get(&dsi->dev, "dvdd");
 	if (IS_ERR(ctx->dvdd))
-- 
2.25.1