diff options
| author | Mariusz Gorski <marius.gorski@gmail.com> | 2014-11-27 22:36:47 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-12-02 16:34:34 -0800 |
| commit | 36277d4ad01a6cb3c9e4b762f412cb45c29aa1ae (patch) | |
| tree | 704de2ea34ee11023341bc093bbcabd43f30c2f1 | |
| parent | d9114767d1d19a77ebfbab6764281abf84df7862 (diff) | |
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>
| -rw-r--r-- | drivers/staging/panel/panel.c | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/drivers/staging/panel/panel.c b/drivers/staging/panel/panel.c index 0d3f09e7ee4a..1b4a2111769d 100644 --- a/drivers/staging/panel/panel.c +++ b/drivers/staging/panel/panel.c @@ -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"); |