[PATCH v3 4/4] drm/panel: jd9365da: Add the function of adjusting orientation

[Zhaoxiong Lv <lvzhaoxiong@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>]

This driver does not have the function to adjust the orientation,
so this function is added.

Signed-off-by: Zhaoxiong Lv <lvzhaoxiong@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/panel/panel-jadard-jd9365da-h3.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/panel/panel-jadard-jd9365da-h3.c b/drivers/gpu/drm/panel/panel-jadard-jd9365da-h3.c
index f6e130567707..7f86bb7f2299 100644
--- a/drivers/gpu/drm/panel/panel-jadard-jd9365da-h3.c
+++ b/drivers/gpu/drm/panel/panel-jadard-jd9365da-h3.c
@@ -42,7 +42,7 @@ struct jadard {
 	struct drm_panel panel;
 	struct mipi_dsi_device *dsi;
 	const struct jadard_panel_desc *desc;
-
+	enum drm_panel_orientation orientation;
 	struct regulator *vdd;
 	struct regulator *vccio;
 	struct gpio_desc *reset;
@@ -205,12 +205,20 @@ static int jadard_get_modes(struct drm_panel *panel,
 	return 1;
 }
 
+static enum drm_panel_orientation jadard_panel_get_orientation(struct drm_panel *panel)
+{
+	struct jadard *jadard = panel_to_jadard(panel);
+
+	return jadard->orientation;
+}
+
 static const struct drm_panel_funcs jadard_funcs = {
 	.disable = jadard_disable,
 	.unprepare = jadard_unprepare,
 	.prepare = jadard_prepare,
 	.enable = jadard_enable,
 	.get_modes = jadard_get_modes,
+	.get_orientation = jadard_panel_get_orientation,
 };
 
 static int radxa_display_8hd_ad002_init_cmds(struct jadard *jadard)
@@ -907,6 +915,12 @@ static int jadard_dsi_probe(struct mipi_dsi_device *dsi)
 	drm_panel_init(&jadard->panel, dev, &jadard_funcs,
 		       DRM_MODE_CONNECTOR_DSI);
 
+	ret = of_drm_get_panel_orientation(dev->of_node, &jadard->orientation);
+	if (ret < 0) {
+		dev_err(dev, "%pOF: failed to get orientation %d\n", dev->of_node, ret);
+		return ret;
+	}
+
 	ret = drm_panel_of_backlight(&jadard->panel);
 	if (ret)
 		return ret;
-- 
2.17.1