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authoreric miao <eric.miao@marvell.com>2008-04-30 00:52:20 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-30 08:29:31 -0700
commit92ac73c1e4b4e039162f5d3980c2da8192b28060 (patch)
tree207565d3a1ee07db3fb3ffc5358a7edc8154ddf6 /drivers
parentded245b67f0a412b75052a285a0b0d1798650a63 (diff)
pxafb: sanitize the usage of #ifdef .. processing pxafb parameters
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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/video/pxafb.c57
1 files changed, 28 insertions, 29 deletions
diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c
index 9c87a9c2566..f1846c0de93 100644
--- a/drivers/video/pxafb.c
+++ b/drivers/video/pxafb.c
@@ -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);
}