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>

2 files changed, 6 insertions, 1 deletions

diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c
index 9e44988155a..1ecc71ec41f 100644
--- a/drivers/video/sh_mobile_lcdcfb.c
+++ b/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
diff --git a/drivers/video/sh_mobile_lcdcfb.h b/drivers/video/sh_mobile_lcdcfb.h
index 9601b929a40..36cd5649598 100644
--- a/drivers/video/sh_mobile_lcdcfb.h
+++ b/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;
 };
 
 /*