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staging: panel: Remove magic numbers 

Get rid of magic numbers indicating that the value of a module param
is not set. Use a defined value instead.

Signed-off-by: Mariusz Gorski <marius.gorski@gmail.com>
Acked-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mariusz Gorski 2014-11-27 22:36:47 +01:00 коммит произвёл Greg Kroah-Hartman
Родитель d9114767d1
Коммит 36277d4ad0
1 изменённых файлов: 12 добавлений и 10 удалений
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22
drivers/staging/panel/panel.c
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@ -133,6 +133,8 @@
#define LCD_ESCAPE_LEN 24 /* max chars for LCD escape command */
#define LCD_ESCAPE_CHAR 27 /* use char 27 for escape command */
#define NOT_SET -1
/* macros to simplify use of the parallel port */
#define r_ctr(x) (parport_read_control((x)->port))
#define r_dtr(x) (parport_read_data((x)->port))
@ -439,37 +441,37 @@ MODULE_PARM_DESC(profile,
"1=16x2 old kp; 2=serial 16x2, new kp; 3=16x2 hantronix; "
"4=16x2 nexcom; default=40x2, old kp");
static int keypad_type = -1;
static int keypad_type = NOT_SET;
module_param(keypad_type, int, 0000);
MODULE_PARM_DESC(keypad_type,
"Keypad type: 0=none, 1=old 6 keys, 2=new 6+1 keys, 3=nexcom 4 keys");
static int lcd_type = -1;
static int lcd_type = NOT_SET;
module_param(lcd_type, int, 0000);
MODULE_PARM_DESC(lcd_type,
"LCD type: 0=none, 1=old //, 2=serial ks0074, 3=hantronix //, 4=nexcom //, 5=compiled-in");
static int lcd_height = -1;
static int lcd_height = NOT_SET;
module_param(lcd_height, int, 0000);
MODULE_PARM_DESC(lcd_height, "Number of lines on the LCD");
static int lcd_width = -1;
static int lcd_width = NOT_SET;
module_param(lcd_width, int, 0000);
MODULE_PARM_DESC(lcd_width, "Number of columns on the LCD");
static int lcd_bwidth = -1; /* internal buffer width (usually 40) */
static int lcd_bwidth = NOT_SET; /* internal buffer width (usually 40) */
module_param(lcd_bwidth, int, 0000);
MODULE_PARM_DESC(lcd_bwidth, "Internal LCD line width (40)");
static int lcd_hwidth = -1; /* hardware buffer width (usually 64) */
static int lcd_hwidth = NOT_SET; /* hardware buffer width (usually 64) */
module_param(lcd_hwidth, int, 0000);
MODULE_PARM_DESC(lcd_hwidth, "LCD line hardware address (64)");
static int lcd_charset = -1;
static int lcd_charset = NOT_SET;
module_param(lcd_charset, int, 0000);
MODULE_PARM_DESC(lcd_charset, "LCD character set: 0=standard, 1=KS0074");
static int lcd_proto = -1;
static int lcd_proto = NOT_SET;
module_param(lcd_proto, int, 0000);
MODULE_PARM_DESC(lcd_proto,
"LCD communication: 0=parallel (//), 1=serial, 2=TI LCD Interface");
@ -515,11 +517,11 @@ MODULE_PARM_DESC(lcd_bl_pin,
/* Deprecated module parameters - consider not using them anymore */
static int lcd_enabled = -1;
static int lcd_enabled = NOT_SET;
module_param(lcd_enabled, int, 0000);
MODULE_PARM_DESC(lcd_enabled, "Deprecated option, use lcd_type instead");
static int keypad_enabled = -1;
static int keypad_enabled = NOT_SET;
module_param(keypad_enabled, int, 0000);
MODULE_PARM_DESC(keypad_enabled, "Deprecated option, use keypad_type instead");