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lcd: allow lcd device to handle mode change events

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Some LCD panels are capable of different resolutions, and is allowed
to change at run-time, so to make "struct lcd_device" to be able to
handle mode change events here.

Signed-off-by: Eric Miao <eric.miao@marvell.com>
Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Eric Miao 2008-08-29 04:18:43 +08:00 • committed by Russell King
parent 6ae19b04ab
commit faa312da9c
3 changed files with 19 additions and 3 deletions
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3
include/linux/lcd.h
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@ -11,6 +11,7 @@
#include <linux/device.h>
#include <linux/mutex.h>
#include <linux/notifier.h>
#include <linux/fb.h>
/* Notes on locking:
*
@ -45,6 +46,8 @@ struct lcd_ops {
int (*get_contrast)(struct lcd_device *);
/* Set LCD panel contrast */
int (*set_contrast)(struct lcd_device *, int contrast);
/* Set LCD panel mode (resolutions ...) */
int (*set_mode)(struct lcd_device *, struct fb_videomode *);
/* Check if given framebuffer device is the one LCD is bound to;
return 0 if not, !=0 if it is. If NULL, lcd always matches the fb. */
int (*check_fb)(struct lcd_device *, struct fb_info *);