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Subject[PATCH v2 20/32] auxdisplay: cleanup unnecessary hd44780 code in charlcd
Date
From: Lars Poeschel <poeschel@lemonage.de>

This cleans up now unnecessary hd44780 specific code from charlcd. We
obsoleted this with the last three patches. So another chunk of hd44780
code can be dropped.

Signed-off-by: Lars Poeschel <poeschel@lemonage.de>
---
drivers/auxdisplay/charlcd.c | 17 +----------------
1 file changed, 1 insertion(+), 16 deletions(-)

diff --git a/drivers/auxdisplay/charlcd.c b/drivers/auxdisplay/charlcd.c
index b099897e101b..c04aaa4d66a5 100644
--- a/drivers/auxdisplay/charlcd.c
+++ b/drivers/auxdisplay/charlcd.c
@@ -26,11 +26,6 @@
#define LCD_BL_TEMPO_PERIOD 4

/* LCD commands */
-#define LCD_CMD_DISPLAY_CTRL 0x08 /* Display control */
-#define LCD_CMD_DISPLAY_ON 0x04 /* Set display on */
-#define LCD_CMD_CURSOR_ON 0x02 /* Set cursor on */
-#define LCD_CMD_BLINK_ON 0x01 /* Set blink on */
-
#define LCD_CMD_FUNCTION_SET 0x20 /* Set function */
#define LCD_CMD_DATA_LEN_8BITS 0x10 /* Set data length to 8 bits */
#define LCD_CMD_TWO_LINES 0x08 /* Set to two display lines */
@@ -419,17 +414,7 @@ static inline int handle_lcd_special_code(struct charlcd *lcd)
if (oldflags == priv->flags)
return processed;

- /* check whether one of B,C,D flags were changed */
- if ((oldflags ^ priv->flags) &
- (LCD_FLAG_B | LCD_FLAG_C | LCD_FLAG_D))
- /* set display mode */
- hdc->write_cmd(hdc,
- LCD_CMD_DISPLAY_CTRL |
- ((priv->flags & LCD_FLAG_D) ? LCD_CMD_DISPLAY_ON : 0) |
- ((priv->flags & LCD_FLAG_C) ? LCD_CMD_CURSOR_ON : 0) |
- ((priv->flags & LCD_FLAG_B) ? LCD_CMD_BLINK_ON : 0));
- /* check whether one of F,N flags was changed */
- else if ((oldflags ^ priv->flags) & (LCD_FLAG_F | LCD_FLAG_N))
+ if ((oldflags ^ priv->flags) & (LCD_FLAG_F | LCD_FLAG_N))
hdc->write_cmd(hdc,
LCD_CMD_FUNCTION_SET |
((hdc->ifwidth == 8) ? LCD_CMD_DATA_LEN_8BITS : 0) |
--
2.28.0
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