viafb: initialize margins correct

This patch initializes the margins for the initial mode correct.
This is required to get the desired initial refresh rate. Also do
more verbose sanity checking to prevent misbehavior.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
This commit is contained in:
Florian Tobias Schandinat 2011-03-21 17:01:07 +00:00
parent 726abbc795
commit 3f086fe93f
1 changed files with 11 additions and 20 deletions

View File

@ -1806,14 +1806,9 @@ int __devinit via_fb_pci_probe(struct viafb_dev *vdev)
default_var.xres_virtual = default_xres;
default_var.yres_virtual = default_yres;
default_var.bits_per_pixel = viafb_bpp;
default_var.pixclock =
viafb_get_pixclock(default_xres, default_yres, viafb_refresh);
default_var.left_margin = (default_xres >> 3) & 0xf8;
default_var.right_margin = 32;
default_var.upper_margin = 16;
default_var.lower_margin = 4;
default_var.hsync_len = default_var.left_margin;
default_var.vsync_len = 4;
viafb_fill_var_timing_info(&default_var, viafb_get_refresh(
default_var.xres, default_var.yres, viafb_refresh),
viafb_get_mode(default_var.xres, default_var.yres));
viafb_setup_fixinfo(&viafbinfo->fix, viaparinfo);
viafbinfo->var = default_var;
@ -1852,15 +1847,9 @@ int __devinit via_fb_pci_probe(struct viafb_dev *vdev)
default_var.xres_virtual = viafb_second_virtual_xres;
default_var.yres_virtual = viafb_second_virtual_yres;
default_var.bits_per_pixel = viafb_bpp1;
default_var.pixclock =
viafb_get_pixclock(viafb_second_xres, viafb_second_yres,
viafb_refresh1);
default_var.left_margin = (viafb_second_xres >> 3) & 0xf8;
default_var.right_margin = 32;
default_var.upper_margin = 16;
default_var.lower_margin = 4;
default_var.hsync_len = default_var.left_margin;
default_var.vsync_len = 4;
viafb_fill_var_timing_info(&default_var, viafb_get_refresh(
default_var.xres, default_var.yres, viafb_refresh1),
viafb_get_mode(default_var.xres, default_var.yres));
viafb_setup_fixinfo(&viafbinfo1->fix, viaparinfo1);
viafb_check_var(&default_var, viafbinfo1);
@ -2015,15 +2004,17 @@ static int __init viafb_setup(char *options)
*/
int __init viafb_init(void)
{
u32 dummy;
u32 dummy_x, dummy_y;
#ifndef MODULE
char *option = NULL;
if (fb_get_options("viafb", &option))
return -ENODEV;
viafb_setup(option);
#endif
if (parse_mode(viafb_mode, &dummy, &dummy)
|| parse_mode(viafb_mode1, &dummy, &dummy)
if (parse_mode(viafb_mode, &dummy_x, &dummy_y)
|| !viafb_get_mode(dummy_x, dummy_y)
|| parse_mode(viafb_mode1, &dummy_x, &dummy_y)
|| !viafb_get_mode(dummy_x, dummy_y)
|| viafb_bpp < 0 || viafb_bpp > 32
|| viafb_bpp1 < 0 || viafb_bpp1 > 32
|| parse_active_dev())