# \[PATCH 4/7\] video: fbdev: bt455: Remove unneeded colormap helpers for cursor support

- From: Maciej W. Rozycki \<hidden\>
- Date: 2016-02-22 01:55:21 
- List: linux-fbdev
- Page: https://ratatoskr.run/linux-fbdev/2016/02/4690214
- Thread: https://ratatoskr.run/linux-fbdev/2016/02/4690210/t.md

```text
Signed-off-by: Maciej W. Rozycki <redacted>
---
linux-bt455-cursor.diff
Index: linux-20160211-4maxp64/drivers/video/fbdev/bt455.h
=================================--- linux-20160211-4maxp64.orig/drivers/video/fbdev/bt455.h
+++ linux-20160211-4maxp64/drivers/video/fbdev/bt455.h
@@ -67,28 +67,3 @@ static inline void bt455_write_ovly_entr
 	wmb();
 	regs->addr_ovly = blue & 0x0f;
 }
-
-static inline void bt455_set_cursor(struct bt455_regs *regs)
-{
-	mb();
-	regs->addr_ovly = 0x0f;
-	wmb();
-	regs->addr_ovly = 0x0f;
-	wmb();
-	regs->addr_ovly = 0x0f;
-}
-
-static inline void bt455_erase_cursor(struct bt455_regs *regs)
-{
-	/* bt455_write_cmap_entry(regs, 8, 0x00, 0x00, 0x00); */
-	/* bt455_write_cmap_entry(regs, 9, 0x00, 0x00, 0x00); */
-	bt455_write_ovly_entry(regs, 8, 0x03, 0x03, 0x03);
-	bt455_write_ovly_entry(regs, 9, 0x07, 0x07, 0x07);
-
-	wmb();
-	regs->addr_ovly = 0x09;
-	wmb();
-	regs->addr_ovly = 0x09;
-	wmb();
-	regs->addr_ovly = 0x09;
-}
```