[PATCH] gxfb: Support command line options

[Jordan Crouse]

Commit:     16ef9870959621fa437d25ead28a7199acc6ce49
Parent:     ab1db0cfcf69f94a5c6831db230982cd6bbeb2e1
commit 16ef9870959621fa437d25ead28a7199acc6ce49
Author:     Jordan Crouse <jordan.crouse at amd.com>
AuthorDate: Fri Dec 8 02:40:54 2006 -0800
Commit:     Linus Torvalds <torvalds at woody.osdl.org>
CommitDate: Fri Dec 8 08:29:08 2006 -0800

    [PATCH] gxfb: Support command line options
    
    Add support for command line options for setting the mode and various
    settings.
    
    [akpm at osdl.org: cleanups]
    Signed-off-by: Jordan Crouse <jordan.crouse at amd.com>
    Cc: "Antonino A. Daplas" <adaplas at pol.net>
    Acked-by: James Simmons <jsimmons at infradead.org>
    Signed-off-by: Andrew Morton <akpm at osdl.org>
    Signed-off-by: Linus Torvalds <torvalds at osdl.org>
---
 drivers/video/geode/gxfb_core.c |   37 +++++++++++++++++++++++++++++++------
 1 files changed, 31 insertions(+), 6 deletions(-)

diff --git a/drivers/video/geode/gxfb_core.c b/drivers/video/geode/gxfb_core.c
index 1e0d47e..47a6880 100644
--- a/drivers/video/geode/gxfb_core.c
+++ b/drivers/video/geode/gxfb_core.c
@@ -35,10 +35,10 @@ #include "geodefb.h"
 #include "display_gx.h"
 #include "video_gx.h"
 
-static char mode_option[32] = "640x480-16 at 60";
+static char *mode_option;
 
 /* Modes relevant to the GX (taken from modedb.c) */
-static const struct fb_videomode __initdata gx_modedb[] = {
+static const struct fb_videomode gx_modedb[] __initdata = {
 	/* 640x480-60 VESA */
 	{ NULL, 60, 640, 480, 39682,  48, 16, 33, 10, 96, 2,
 	  0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
@@ -341,7 +341,8 @@ static int __init gxfb_probe(struct pci_
 		goto err;
 	}
 
-        /* Clear the frame buffer of garbage. */
+
+	/* Clear the frame buffer of garbage. */
         memset_io(info->screen_base, 0, info->fix.smem_len);
 
 	gxfb_check_var(&info->var, info);
@@ -411,11 +412,35 @@ static struct pci_driver gxfb_driver = {
 	.remove		= gxfb_remove,
 };
 
+#ifndef MODULE
+static int __init gxfb_setup(char *options)
+{
+
+	char *opt;
+
+	if (!options || !*options)
+		return 0;
+
+	while ((opt = strsep(&options, ",")) != NULL) {
+		if (!*opt)
+			continue;
+
+		mode_option = opt;
+	}
+
+	return 0;
+}
+#endif
+
 static int __init gxfb_init(void)
 {
 #ifndef MODULE
-	if (fb_get_options("gxfb", NULL))
+	char *option = NULL;
+
+	if (fb_get_options("gxfb", &option))
 		return -ENODEV;
+
+	gxfb_setup(option);
 #endif
 	return pci_register_driver(&gxfb_driver);
 }
@@ -428,8 +453,8 @@ static void __exit gxfb_cleanup(void)
 module_init(gxfb_init);
 module_exit(gxfb_cleanup);
 
-module_param_string(mode, mode_option, sizeof(mode_option), 0444);
-MODULE_PARM_DESC(mode, "video mode (<x>x<y>[-<bpp>][@<refr>])");
+module_param(mode_option, charp, 0);
+MODULE_PARM_DESC(mode_option, "video mode (<x>x<y>[-<bpp>][@<refr>])");
 
 MODULE_DESCRIPTION("Framebuffer driver for the AMD Geode GX");
 MODULE_LICENSE("GPL");