video: s3c-fb: fix virtual resolution checking
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 <jg1.han@samsung.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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1 changed files with 2 additions and 3 deletions
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@ -235,13 +235,12 @@ static int s3c_fb_check_var(struct fb_var_screeninfo *var,
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struct fb_info *info)
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{
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struct s3c_fb_win *win = info->par;
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struct s3c_fb_pd_win *windata = win->windata;
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struct s3c_fb *sfb = win->parent;
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dev_dbg(sfb->dev, "checking parameters\n");
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var->xres_virtual = max((unsigned int)windata->virtual_x, var->xres);
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var->yres_virtual = max((unsigned int)windata->virtual_y, var->yres);
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var->xres_virtual = max(var->xres_virtual, var->xres);
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var->yres_virtual = max(var->yres_virtual, var->yres);
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if (!s3c_fb_validate_win_bpp(win, var->bits_per_pixel)) {
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dev_dbg(sfb->dev, "win %d: unsupported bpp %d\n",
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