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pxafb: sanitize the usage of #ifdef .. processing pxafb parameters

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So to get a better coding style and centralize the pxafb parameters
handling code.

Signed-off-by: eric miao <eric.miao@marvell.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
eric miao 2008-04-30 00:52:20 -07:00 committed by Linus Torvalds
parent ded245b67f
commit 92ac73c1e4
1 changed files with 28 additions and 29 deletions
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57
drivers/video/pxafb.c
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@ -71,11 +71,6 @@ static int pxafb_activate_var(struct fb_var_screeninfo *var,
struct pxafb_info *);
static void set_ctrlr_state(struct pxafb_info *fbi, u_int state);
#ifdef CONFIG_FB_PXA_PARAMETERS
#define PXAFB_OPTIONS_SIZE 256
static char g_options[PXAFB_OPTIONS_SIZE] __devinitdata = "";
#endif
static inline void pxafb_schedule_work(struct pxafb_info *fbi, u_int state)
{
unsigned long flags;
@ -1316,6 +1311,32 @@ static int __init pxafb_parse_options(struct device *dev, char *options)
}
return 0;
}
static char g_options[256] __devinitdata = "";
#ifndef CONFIG_MODULES
static int __devinit pxafb_setup_options(void)
{
char *options = NULL;
if (fb_get_options("pxafb", &options))
return -ENODEV;
if (options)
strlcpy(g_options, options, sizeof(g_options));
return 0;
}
#else
#define pxafb_setup_options() (0)
module_param_string(options, g_options, sizeof(g_options), 0);
MODULE_PARM_DESC(options, "LCD parameters (see Documentation/fb/pxafb.txt)");
#endif
#else
#define pxafb_parse_options(...) (0)
#define pxafb_setup_options() (0)
#endif
static int __init pxafb_probe(struct platform_device *dev)
@ -1332,11 +1353,9 @@ static int __init pxafb_probe(struct platform_device *dev)
if (!inf)
goto failed;
#ifdef CONFIG_FB_PXA_PARAMETERS
ret = pxafb_parse_options(&dev->dev, g_options);
if (ret < 0)
goto failed;
#endif
#ifdef DEBUG_VAR
/* Check for various illegal bit-combinations. Currently only
@ -1449,31 +1468,11 @@ static struct platform_driver pxafb_driver = {
},
};
#ifndef MODULE
static int __devinit pxafb_setup(char *options)
{
# ifdef CONFIG_FB_PXA_PARAMETERS
if (options)
strlcpy(g_options, options, sizeof(g_options));
# endif
return 0;
}
#else
# ifdef CONFIG_FB_PXA_PARAMETERS
module_param_string(options, g_options, sizeof(g_options), 0);
MODULE_PARM_DESC(options, "LCD parameters (see Documentation/fb/pxafb.txt)");
# endif
#endif
static int __devinit pxafb_init(void)
{
#ifndef MODULE
char *option = NULL;
if (pxafb_setup_options())
return -EINVAL;
if (fb_get_options("pxafb", &option))
return -ENODEV;
pxafb_setup(option);
#endif
return platform_driver_register(&pxafb_driver);
}