[PATCH 2/5] drm: panel: jd9365da: Add prepare_prev_first flag to drm_panel

[Marc-Olivier Champagne <marc-olivier.champagne@savoirfairelinux.com>]

The DSI host must be enabled for the panel to be initialized in
prepare(). Set the prepare_prev_first flag to guarantee this.
This fixes the panel operation on Renesas RZ/G2LC SoC DSI host.

Suggested-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Signed-off-by: Marc-Olivier Champagne <marc-olivier.champagne@savoirfairelinux.com>
---
 drivers/gpu/drm/panel/panel-jadard-jd9365da-h3.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/panel/panel-jadard-jd9365da-h3.c b/drivers/gpu/drm/panel/panel-jadard-jd9365da-h3.c
index 1ef0c937863a..a79dc8f8d5af 100644
--- a/drivers/gpu/drm/panel/panel-jadard-jd9365da-h3.c
+++ b/drivers/gpu/drm/panel/panel-jadard-jd9365da-h3.c
@@ -2993,6 +2993,8 @@ static int jadard_dsi_probe(struct mipi_dsi_device *dsi)
 		return dev_err_probe(&dsi->dev, PTR_ERR(jadard->vccio),
 				"failed to get vccio regulator\n");
 
+	jadard->panel.prepare_prev_first = true;
+
 	ret = of_drm_get_panel_orientation(dev->of_node, &jadard->orientation);
 	if (ret < 0)
 		return dev_err_probe(dev, ret, "failed to get orientation\n");
-- 
2.34.1