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videomode: create enum for videomode's display flags 

Instead of having plain defines for the videomode's flags, add an enum
for the flags. This makes the flags clearer to use, as the enum tells
which values can be used with the flags field.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Steffen Trumtrar <s.trumtrar@pengutronix.de>
This commit is contained in:
Tomi Valkeinen 2013-03-12 10:31:29 +02:00
parent 06a3307975
commit 32ed6ef133
2 changed files with 18 additions and 12 deletions
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28
include/video/display_timing.h
View File

@ -12,16 +12,22 @@
#include <linux/bitops.h>
#include <linux/types.h>
#define DISPLAY_FLAGS_HSYNC_LOW BIT(0)
#define DISPLAY_FLAGS_HSYNC_HIGH BIT(1)
#define DISPLAY_FLAGS_VSYNC_LOW BIT(2)
#define DISPLAY_FLAGS_VSYNC_HIGH BIT(3)
#define DISPLAY_FLAGS_DE_LOW BIT(4) /* data enable flag */
#define DISPLAY_FLAGS_DE_HIGH BIT(5)
#define DISPLAY_FLAGS_PIXDATA_POSEDGE BIT(6) /* drive data on pos. edge */
#define DISPLAY_FLAGS_PIXDATA_NEGEDGE BIT(7) /* drive data on neg. edge */
#define DISPLAY_FLAGS_INTERLACED BIT(8)
#define DISPLAY_FLAGS_DOUBLESCAN BIT(9)
enum display_flags {
DISPLAY_FLAGS_HSYNC_LOW = BIT(0),
DISPLAY_FLAGS_HSYNC_HIGH = BIT(1),
DISPLAY_FLAGS_VSYNC_LOW = BIT(2),
DISPLAY_FLAGS_VSYNC_HIGH = BIT(3),
/* data enable flag */
DISPLAY_FLAGS_DE_LOW = BIT(4),
DISPLAY_FLAGS_DE_HIGH = BIT(5),
/* drive data on pos. edge */
DISPLAY_FLAGS_PIXDATA_POSEDGE = BIT(6),
/* drive data on neg. edge */
DISPLAY_FLAGS_PIXDATA_NEGEDGE = BIT(7),
DISPLAY_FLAGS_INTERLACED = BIT(8),
DISPLAY_FLAGS_DOUBLESCAN = BIT(9),
};
/*
* A single signal can be specified via a range of minimal and maximal values
@ -69,7 +75,7 @@ struct display_timing {
struct timing_entry vback_porch; /* ver. back porch */
struct timing_entry vsync_len; /* ver. sync len */
unsigned int flags; /* display flags */
enum display_flags flags; /* display flags */
};
/*

2
include/video/videomode.h
View File

@ -29,7 +29,7 @@ struct videomode {
u32 vback_porch;
u32 vsync_len;
unsigned int flags; /* display flags */
enum display_flags flags; /* display flags */
};
/**