sh_mobile_lcdc: Add an lcdc channel pointer to sh_mobile_lcdc_entity

The field will be used by the transmitter drivers to access
sh_mobile_lcdc_chan fields such as fb_info.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

drivers/video/sh_mobile_lcdcfb.c

@@ -1495,8 +1495,10 @@ static int sh_mobile_lcdc_remove(struct platform_device *pdev)
 		if (!info || !info->device)
 			continue;
 
-		if (ch->tx_dev)
+		if (ch->tx_dev) {
+			ch->tx_dev->lcdc = NULL;
 			module_put(ch->cfg.tx_dev->dev.driver->owner);
+		}
 
 		if (ch->sglist)
 			vfree(ch->sglist);
@@ -1605,6 +1607,7 @@ sh_mobile_lcdc_channel_init(struct sh_mobile_lcdc_priv *priv,
 			return -EINVAL;
 		}
 		ch->tx_dev = platform_get_drvdata(cfg->tx_dev);
+		ch->tx_dev->lcdc = ch;
 	}
 
 	/* Iterate through the modes to validate them and find the highest

drivers/video/sh_mobile_lcdcfb.h

@@ -19,6 +19,7 @@ struct fb_info;
 struct module;
 struct sh_mobile_lcdc_entity;
 struct sh_mobile_lcdc_priv;
+struct sh_mobile_lcdc_chan;
 
 struct sh_mobile_lcdc_entity_ops {
 	/* Display */
@@ -30,6 +31,7 @@ struct sh_mobile_lcdc_entity_ops {
 struct sh_mobile_lcdc_entity {
 	struct module *owner;
 	const struct sh_mobile_lcdc_entity_ops *ops;
+	struct sh_mobile_lcdc_chan *lcdc;
 };
 
 /*