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video: s3c-fb: fix virtual resolution checking

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This patch fixes mishandling in virtual resolution checking.
Previously, virtual resolution is changed to virtual_x and virtual_y
which mean the size for buffer allocation, when s3c_fb_check_var is
called by fb_check_var. However, it is meaningless, since virtual_x
and virtual_y are fixed and user cannot change virtual resolution.
Therefore, virtual resolution should be more than resolution
such as xres and yres.

Signed-off-by: Jingoo Han <[email protected]>
Signed-off-by: Paul Mundt <[email protected]>
This commit is contained in:
Jingoo Han 2011-06-09 04:26:38 +00:00 • committed by Paul Mundt
commit 13e6af8886
1 changed files with 2 additions and 3 deletions
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5
drivers/video/s3c-fb.c
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@ -235,13 +235,12 @@ static int s3c_fb_check_var(struct fb_var_screeninfo *var,
struct fb_info *info)
{
struct s3c_fb_win *win = info->par;
struct s3c_fb_pd_win *windata = win->windata;
struct s3c_fb *sfb = win->parent;
dev_dbg(sfb->dev, "checking parameters\n");
var->xres_virtual = max((unsigned int)windata->virtual_x, var->xres);
var->yres_virtual = max((unsigned int)windata->virtual_y, var->yres);
var->xres_virtual = max(var->xres_virtual, var->xres);
var->yres_virtual = max(var->yres_virtual, var->yres);
if (!s3c_fb_validate_win_bpp(win, var->bits_per_pixel)) {
dev_dbg(sfb->dev, "win %d: unsupported bpp %d\n",