Commit 54bc937f authored Jan 15, 2018 by Sean Young Committed by Miguel Ojeda Apr 12, 2018

auxdisplay: charlcd: no need to call charlcd_gotoxy() if nothing changes



If the line extends beyond the width to the screen, nothing changes. The
existing code will call charlcd_gotoxy every time for this case.

Signed-off-by: Sean Young <sean@mess.org>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>

parent 7223310f

drivers/auxdisplay/charlcd.c

+4 −3

Original line number	Diff line number	Diff line
		@@ -192,11 +192,12 @@ static void charlcd_print(struct charlcd *lcd, char c)
		c = lcd->char_conv[(unsigned char)c];
		lcd->ops->write_data(lcd, c);
		priv->addr.x++;
		}

		/* prevents the cursor from wrapping onto the next line */
		if (priv->addr.x == lcd->bwidth)
		charlcd_gotoxy(lcd);
		}
		}

		static void charlcd_clear_fast(struct charlcd *lcd)
		{