Update Linux to v5.10.109

Sourced from [1]

[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.109.tar.xz

Change-Id: I19bca9fc6762d4e63bcf3e4cba88bbe560d9c76c
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/drivers/gpu/drm/panel/panel-lvds.c b/drivers/gpu/drm/panel/panel-lvds.c
index bf5fcc3..66c7d76 100644
--- a/drivers/gpu/drm/panel/panel-lvds.c
+++ b/drivers/gpu/drm/panel/panel-lvds.c
@@ -8,7 +8,6 @@
  * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
  */
 
-#include <linux/backlight.h>
 #include <linux/gpio/consumer.h>
 #include <linux/module.h>
 #include <linux/of_platform.h>
@@ -34,11 +33,12 @@
 	unsigned int bus_format;
 	bool data_mirror;
 
-	struct backlight_device *backlight;
 	struct regulator *supply;
 
 	struct gpio_desc *enable_gpio;
 	struct gpio_desc *reset_gpio;
+
+	enum drm_panel_orientation orientation;
 };
 
 static inline struct panel_lvds *to_panel_lvds(struct drm_panel *panel)
@@ -46,19 +46,6 @@
 	return container_of(panel, struct panel_lvds, panel);
 }
 
-static int panel_lvds_disable(struct drm_panel *panel)
-{
-	struct panel_lvds *lvds = to_panel_lvds(panel);
-
-	if (lvds->backlight) {
-		lvds->backlight->props.power = FB_BLANK_POWERDOWN;
-		lvds->backlight->props.state |= BL_CORE_FBBLANK;
-		backlight_update_status(lvds->backlight);
-	}
-
-	return 0;
-}
-
 static int panel_lvds_unprepare(struct drm_panel *panel)
 {
 	struct panel_lvds *lvds = to_panel_lvds(panel);
@@ -93,26 +80,13 @@
 	return 0;
 }
 
-static int panel_lvds_enable(struct drm_panel *panel)
+static int panel_lvds_get_modes(struct drm_panel *panel,
+				struct drm_connector *connector)
 {
 	struct panel_lvds *lvds = to_panel_lvds(panel);
-
-	if (lvds->backlight) {
-		lvds->backlight->props.state &= ~BL_CORE_FBBLANK;
-		lvds->backlight->props.power = FB_BLANK_UNBLANK;
-		backlight_update_status(lvds->backlight);
-	}
-
-	return 0;
-}
-
-static int panel_lvds_get_modes(struct drm_panel *panel)
-{
-	struct panel_lvds *lvds = to_panel_lvds(panel);
-	struct drm_connector *connector = lvds->panel.connector;
 	struct drm_display_mode *mode;
 
-	mode = drm_mode_create(lvds->panel.drm);
+	mode = drm_mode_create(connector->dev);
 	if (!mode)
 		return 0;
 
@@ -127,15 +101,14 @@
 	connector->display_info.bus_flags = lvds->data_mirror
 					  ? DRM_BUS_FLAG_DATA_LSB_TO_MSB
 					  : DRM_BUS_FLAG_DATA_MSB_TO_LSB;
+	drm_connector_set_panel_orientation(connector, lvds->orientation);
 
 	return 1;
 }
 
 static const struct drm_panel_funcs panel_lvds_funcs = {
-	.disable = panel_lvds_disable,
 	.unprepare = panel_lvds_unprepare,
 	.prepare = panel_lvds_prepare,
-	.enable = panel_lvds_enable,
 	.get_modes = panel_lvds_get_modes,
 };
 
@@ -146,6 +119,12 @@
 	const char *mapping;
 	int ret;
 
+	ret = of_drm_get_panel_orientation(np, &lvds->orientation);
+	if (ret < 0) {
+		dev_err(lvds->dev, "%pOF: failed to get orientation %d\n", np, ret);
+		return ret;
+	}
+
 	ret = of_get_display_timing(np, "panel-timing", &timing);
 	if (ret < 0) {
 		dev_err(lvds->dev, "%pOF: problems parsing panel-timing (%d)\n",
@@ -242,10 +221,6 @@
 		return ret;
 	}
 
-	lvds->backlight = devm_of_find_backlight(lvds->dev);
-	if (IS_ERR(lvds->backlight))
-		return PTR_ERR(lvds->backlight);
-
 	/*
 	 * TODO: Handle all power supplies specified in the DT node in a generic
 	 * way for panels that don't care about power supply ordering. LVDS
@@ -254,14 +229,15 @@
 	 */
 
 	/* Register the panel. */
-	drm_panel_init(&lvds->panel);
-	lvds->panel.dev = lvds->dev;
-	lvds->panel.funcs = &panel_lvds_funcs;
+	drm_panel_init(&lvds->panel, lvds->dev, &panel_lvds_funcs,
+		       DRM_MODE_CONNECTOR_LVDS);
 
-	ret = drm_panel_add(&lvds->panel);
-	if (ret < 0)
+	ret = drm_panel_of_backlight(&lvds->panel);
+	if (ret)
 		return ret;
 
+	drm_panel_add(&lvds->panel);
+
 	dev_set_drvdata(lvds->dev, lvds);
 	return 0;
 }
@@ -272,7 +248,7 @@
 
 	drm_panel_remove(&lvds->panel);
 
-	panel_lvds_disable(&lvds->panel);
+	drm_panel_disable(&lvds->panel);
 
 	return 0;
 }