auxdisplay: Move char redefine code to hd44780_common

Take the code to redefine characters out of charlcd and move it to
hd44780_common, as this is hd44780 specific.
There is now a function hd44780_common_redefine_char that drivers use
and charlcd calls it through its ops function pointer.

Reviewed-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Lars Poeschel <poeschel@lemonage.de>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/auxdisplay/charlcd.h b/drivers/auxdisplay/charlcd.h
index 5a89bdeb659a..3339e8c2554e 100644
--- a/drivers/auxdisplay/charlcd.h
+++ b/drivers/auxdisplay/charlcd.h
@@ -75,6 +75,7 @@ struct charlcd {
  * @cursor: Turn cursor on or off.
  * @blink: Turn cursor blink on or off.
  * @lines: One or two lines.
+ * @redefine_char: Redefine the actual pixel matrix of character.
  */
 struct charlcd_ops {
 	void (*clear_fast)(struct charlcd *lcd);
@@ -91,6 +92,7 @@ struct charlcd_ops {
 	int (*blink)(struct charlcd *lcd, enum charlcd_onoff on);
 	int (*fontsize)(struct charlcd *lcd, enum charlcd_fontsize size);
 	int (*lines)(struct charlcd *lcd, enum charlcd_lines lines);
+	int (*redefine_char)(struct charlcd *lcd, char *esc);
 };
 
 void charlcd_backlight(struct charlcd *lcd, enum charlcd_onoff on);